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py-tui.c can fail to build if the ncurses development headers are not
installed, but if Python was built against ncurses. In this case, the
Python headers will define HAVE_NCURSES_H, confusing gdb_curses.h.
This patch fixes the problem by moving this include inside
"#ifdef TUI".
gdb/ChangeLog
2020-03-31 Joel Jones <joelkevinjones@gmail.com>
PR tui/25597:
* python/py-tui.c: Include gdb_curses.h inside of #ifdef TUI.
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This changes the extension language pretty-printers to use the value
API.
Note that new functions were needed, for both Guile and Python.
Currently both languages always wrap values by removing the values
from the value chain. This makes sense to avoid strange behavior with
watchpoints, and to avoid excessive memory use. However, when
printing, it's important to leave the passed-in value untouched, in
case pretty-printing does nothing -- that way the caller can still
access it.
gdb/ChangeLog
2020-03-13 Tom Tromey <tom@tromey.com>
* valprint.c (do_val_print): Update.
* python/python-internal.h (gdbpy_apply_val_pretty_printer): Take
a struct value.
(value_to_value_object_no_release): Declare.
* python/py-value.c (value_to_value_object_no_release): New
function.
* python/py-prettyprint.c (gdbpy_apply_val_pretty_printer): Take a
struct value.
* guile/scm-value.c (vlscm_scm_from_value_no_release): New
function.
* guile/scm-pretty-print.c (gdbscm_apply_val_pretty_printer): Take
a struct value.
* guile/guile-internal.h (vlscm_scm_from_value_no_release):
Declare.
(gdbscm_apply_val_pretty_printer): Take a struct value.
* extension.h (apply_ext_lang_val_pretty_printer): Take a struct
value.
* extension.c (apply_ext_lang_val_pretty_printer): Take a struct
value.
* extension-priv.h (struct extension_language_ops)
<apply_val_pretty_printer>: Take a struct value.
* cp-valprint.c (cp_print_value): Create a struct value.
(cp_print_value): Update.
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This patch adds support for writing new TUI windows in Python.
2020-02-22 Tom Tromey <tom@tromey.com>
* NEWS: Add entry for gdb.register_window_type.
* tui/tui-layout.h (window_factory): New typedef.
(tui_register_window): Declare.
* tui/tui-layout.c (saved_tui_windows): New global.
(tui_apply_current_layout): Use it.
(tui_register_window): New function.
* python/python.c (do_start_initialization): Call
gdbpy_initialize_tui.
(python_GdbMethods): Add "register_window_type" function.
* python/python-internal.h (gdbpy_register_tui_window)
(gdbpy_initialize_tui): Declare.
* python/py-tui.c: New file.
* Makefile.in (SUBDIR_PYTHON_SRCS): Add py-tui.c.
gdb/doc/ChangeLog
2020-02-22 Tom Tromey <tom@tromey.com>
* python.texi (Python API): Add menu item.
(TUI Windows In Python): New node.
gdb/testsuite/ChangeLog
2020-02-22 Tom Tromey <tom@tromey.com>
* gdb.python/tui-window.exp: New file.
* gdb.python/tui-window.py: New file.
Change-Id: I85fbfb923a1840450a00a7dce113a05d7f048baa
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I noticed that do_start_initialization, in python.c, checks the result
of xmalloc. However, xmalloc cannot fail, so this check is useless.
This patch also changes the code to use XNEWVEC.
gdb/ChangeLog
2020-02-19 Tom Tromey <tromey@adacore.com>
* python/python.c (do_start_initialization): Use XNEWVEC. Remove
NULL check.
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This is an update of this patch:
https://sourceware.org/ml/gdb-patches/2018-09/msg00884.html
This patch attempts to address PR gdb/23718 by re-enabling stdin
whenever an exception is caught during gdb.execute().
When Python gdb.execute() is called, an exception could occur (e.g. the
target disappearing), which is then converted into a Python exception. If
stdin was disabled before the exception is caught, it is not re-enabled,
because the exception doesn't propagate to the top level of the event loop,
whose catch block would otherwise enable it.
The result is that when execution of a Python script completes, GDB does
not prompt or accept input, and is effectively hung.
This change rectifies the issue by re-enabling stdin in the catch block of
execute_gdb_command, prior to converting the exception to a Python
exception.
Since this patch was originally posted I've added a test, and also I
converted the code to re-enable stdin from this:
SWITCH_THRU_ALL_UIS ()
{
async_enable_stdin ();
}
to simply this:
async_enable_stdin ();
My reasoning is that we only need the SWITCH_THRU_ALL_UIS if, at the time
the exception is caught, the current_ui might be different than at the time
we called async_disable_stdin. Within python's execute_gdb_command I think
it should be impossible to switch current_ui, so the SWITCH_THRU_ALL_UIS
isn't needed.
gdb/ChangeLog:
PR gdb/23718
* gdb/python/python.c (execute_gdb_command): Call
async_enable_stdin in catch block.
gdb/testsuite/ChangeLog:
PR gdb/23718
* gdb.server/server-kill-python.exp: New file.
Change-Id: I1cfc36ee9f8484cc1ed82be9be338353db6bc080
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While GNU Source Highlight is good, it's also difficult to build and
distribute. For one thing, it needs Boost. For another, it has an
unusual configuration and installation setup.
Pygments, a Python library, doesn't suffer from these issues, and so I
thought it would be a reasonable fallback.
This patch implements this idea. GNU Source Highlight is preferred,
but if it is unavailable (or fails), the extension languages are
tried. This patch also implements support for Pygments.
Something similar could be done for Guile, using:
https://dthompson.us/projects/guile-syntax-highlight.html
However, I don't know enough about Guile internals to make this
happen, so I have not done it here.
gdb/ChangeLog
2020-01-21 Tom Tromey <tromey@adacore.com>
* source-cache.c (source_cache::ensure): Call ext_lang_colorize.
* python/python.c (python_extension_ops): Update.
(gdbpy_colorize): New function.
* python/lib/gdb/__init__.py (colorize): New function.
* extension.h (ext_lang_colorize): Declare.
* extension.c (ext_lang_colorize): New function.
* extension-priv.h (struct extension_language_ops) <colorize>: New
member.
* cli/cli-style.c (_initialize_cli_style): Update help text.
Change-Id: I5e21623ee05f1f66baaa6deaeca78b578c031bf4
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Use range-based for instead of iterate_over_inferiors in one spot in the Python
code.
gdb/ChangeLog:
* python/py-inferior.c (build_inferior_list): Remove.
(gdbpy_ref): Use range-based for loop to iterate over inferiors.
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I noticed those from a lintian run:
https://salsa.debian.org/cbiesinger-guest/gdb/-/jobs/514119
gdb/ChangeLog:
2020-01-16 Christian Biesinger <cbiesinger@google.com>
* btrace.c (btrace_compute_ftrace_1): Fix spelling error (Unkown).
(btrace_stitch_trace): Likewise.
* charset.c (intermediate_encoding): Likewise (vaild).
* nat/linux-btrace.c (linux_read_pt): Likewise (Unkown).
* python/py-record-btrace.c (struct PyMethodDef): Likewise (occurences).
* record-btrace.c (record_btrace_print_conf): Likewise (unkown).
gdb/testsuite/ChangeLog:
2020-01-16 Christian Biesinger <cbiesinger@google.com>
* lib/gdb.exp: Fix spelling error (seperatelly).
Change-Id: I2a44936bac295020f217fb6c78b99b0a8d09cf9a
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PR symtab/12535 points out that gdb.decode_line("") will cause a
valgrind report.
I think the empty linespec does not really make sense. So, this patch
changes gdb.decode_line to treat a whitespace-only linespec the same
as a non-existing argument.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
PR symtab/12535:
* python/python.c (gdbpy_decode_line): Treat empty string the same
as no argument.
gdb/testsuite/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
PR symtab/12535:
* gdb.python/python.exp: Test decode_line with empty string
argument.
Change-Id: I1d95812b4b7a21d69a3e9afd05b9e3141a931897
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When I try to enable -Wmissing-declarations, I get this error:
CXX python/python.o
/home/smarchi/src/binutils-gdb/gdb/python/python.c: In function ‘PyObject* init__gdb_module()’:
/home/smarchi/src/binutils-gdb/gdb/python/python.c:1582:1: error: no previous declaration for ‘PyObject* init__gdb_module()’ [-Werror=missing-declarations]
init__gdb_module (void)
^~~~~~~~~~~~~~~~
Prevent it by providing a declaration just before the definition.
gdb/ChangeLog:
* python/python.c (init__gdb_module): Add declaration.
Change-Id: I394bc691b7db624708cc4cb2cda28a56ab85a82b
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I'd like to enable the -Wmissing-declarations warning. However, it
warns for every _initialize function, for example:
CXX dcache.o
/home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
/home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
_initialize_dcache (void)
^~~~~~~~~~~~~~~~~~
The only practical way forward I found is to add back the declarations,
which were removed by this commit:
commit 481695ed5f6e0a8a9c9c50bfac1cdd2b3151e6c9
Author: John Baldwin <jhb@FreeBSD.org>
Date: Sat Sep 9 11:02:37 2017 -0700
Remove unnecessary function prototypes.
I don't think it's a big problem to have the declarations for these
functions, but if anybody has a better solution for this, I'll be happy
to use it.
gdb/ChangeLog:
* aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration.
* aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration.
* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration.
* aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration.
* aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration.
* aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration.
* ada-exp.y (_initialize_ada_exp): Add declaration.
* ada-lang.c (_initialize_ada_language): Add declaration.
* ada-tasks.c (_initialize_tasks): Add declaration.
* agent.c (_initialize_agent): Add declaration.
* aix-thread.c (_initialize_aix_thread): Add declaration.
* alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration.
* alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration.
* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration.
* alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration.
* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration.
* alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
* amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration.
* amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration.
* amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration.
* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration.
* amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration.
* amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration.
* amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration.
* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration.
* amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration.
* amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration.
* amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration.
* amd64-tdep.c (_initialize_amd64_tdep): Add declaration.
* amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration.
* amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration.
* annotate.c (_initialize_annotate): Add declaration.
* arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration.
* arc-tdep.c (_initialize_arc_tdep): Add declaration.
* arch-utils.c (_initialize_gdbarch_utils): Add declaration.
* arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration.
* arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration.
* arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration.
* arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration.
* arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration.
* arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration.
* arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration.
* arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration.
* arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration.
* arm-tdep.c (_initialize_arm_tdep): Add declaration.
* arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration.
* auto-load.c (_initialize_auto_load): Add declaration.
* auxv.c (_initialize_auxv): Add declaration.
* avr-tdep.c (_initialize_avr_tdep): Add declaration.
* ax-gdb.c (_initialize_ax_gdb): Add declaration.
* bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration.
* bfin-tdep.c (_initialize_bfin_tdep): Add declaration.
* break-catch-sig.c (_initialize_break_catch_sig): Add declaration.
* break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration.
* break-catch-throw.c (_initialize_break_catch_throw): Add declaration.
* breakpoint.c (_initialize_breakpoint): Add declaration.
* bsd-uthread.c (_initialize_bsd_uthread): Add declaration.
* btrace.c (_initialize_btrace): Add declaration.
* charset.c (_initialize_charset): Add declaration.
* cli/cli-cmds.c (_initialize_cli_cmds): Add declaration.
* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
* cli/cli-logging.c (_initialize_cli_logging): Add declaration.
* cli/cli-script.c (_initialize_cli_script): Add declaration.
* cli/cli-style.c (_initialize_cli_style): Add declaration.
* coff-pe-read.c (_initialize_coff_pe_read): Add declaration.
* coffread.c (_initialize_coffread): Add declaration.
* compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration.
* compile/compile.c (_initialize_compile): Add declaration.
* complaints.c (_initialize_complaints): Add declaration.
* completer.c (_initialize_completer): Add declaration.
* copying.c (_initialize_copying): Add declaration.
* corefile.c (_initialize_core): Add declaration.
* corelow.c (_initialize_corelow): Add declaration.
* cp-abi.c (_initialize_cp_abi): Add declaration.
* cp-namespace.c (_initialize_cp_namespace): Add declaration.
* cp-support.c (_initialize_cp_support): Add declaration.
* cp-valprint.c (_initialize_cp_valprint): Add declaration.
* cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration.
* cris-tdep.c (_initialize_cris_tdep): Add declaration.
* csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration.
* csky-tdep.c (_initialize_csky_tdep): Add declaration.
* ctfread.c (_initialize_ctfread): Add declaration.
* d-lang.c (_initialize_d_language): Add declaration.
* darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration.
* darwin-nat.c (_initialize_darwin_nat): Add declaration.
* dbxread.c (_initialize_dbxread): Add declaration.
* dcache.c (_initialize_dcache): Add declaration.
* disasm-selftests.c (_initialize_disasm_selftests): Add declaration.
* disasm.c (_initialize_disasm): Add declaration.
* dtrace-probe.c (_initialize_dtrace_probe): Add declaration.
* dummy-frame.c (_initialize_dummy_frame): Add declaration.
* dwarf-index-cache.c (_initialize_index_cache): Add declaration.
* dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration.
* dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration.
* dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration.
* dwarf2expr.c (_initialize_dwarf2expr): Add declaration.
* dwarf2loc.c (_initialize_dwarf2loc): Add declaration.
* dwarf2read.c (_initialize_dwarf2_read): Add declaration.
* elfread.c (_initialize_elfread): Add declaration.
* exec.c (_initialize_exec): Add declaration.
* extension.c (_initialize_extension): Add declaration.
* f-lang.c (_initialize_f_language): Add declaration.
* f-valprint.c (_initialize_f_valprint): Add declaration.
* fbsd-nat.c (_initialize_fbsd_nat): Add declaration.
* fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration.
* filesystem.c (_initialize_filesystem): Add declaration.
* findcmd.c (_initialize_mem_search): Add declaration.
* findvar.c (_initialize_findvar): Add declaration.
* fork-child.c (_initialize_fork_child): Add declaration.
* frame-base.c (_initialize_frame_base): Add declaration.
* frame-unwind.c (_initialize_frame_unwind): Add declaration.
* frame.c (_initialize_frame): Add declaration.
* frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration.
* frv-tdep.c (_initialize_frv_tdep): Add declaration.
* ft32-tdep.c (_initialize_ft32_tdep): Add declaration.
* gcore.c (_initialize_gcore): Add declaration.
* gdb-demangle.c (_initialize_gdb_demangle): Add declaration.
* gdb_bfd.c (_initialize_gdb_bfd): Add declaration.
* gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration.
* gdbarch.c (_initialize_gdbarch): Add declaration.
* gdbtypes.c (_initialize_gdbtypes): Add declaration.
* gnu-nat.c (_initialize_gnu_nat): Add declaration.
* gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration.
* gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration.
* go-lang.c (_initialize_go_language): Add declaration.
* go32-nat.c (_initialize_go32_nat): Add declaration.
* guile/guile.c (_initialize_guile): Add declaration.
* h8300-tdep.c (_initialize_h8300_tdep): Add declaration.
* hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration.
* hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration.
* hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration.
* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration.
* hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration.
* hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration.
* hppa-tdep.c (_initialize_hppa_tdep): Add declaration.
* i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration.
* i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration.
* i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration.
* i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration.
* i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration.
* i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration.
* i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration.
* i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration.
* i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration.
* i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration.
* i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration.
* i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration.
* i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration.
* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration.
* i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration.
* i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration.
* i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration.
* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration.
* i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration.
* i386-tdep.c (_initialize_i386_tdep): Add declaration.
* i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration.
* ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration.
* ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration.
* ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration.
* ia64-tdep.c (_initialize_ia64_tdep): Add declaration.
* ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration.
* infcall.c (_initialize_infcall): Add declaration.
* infcmd.c (_initialize_infcmd): Add declaration.
* inflow.c (_initialize_inflow): Add declaration.
* infrun.c (_initialize_infrun): Add declaration.
* interps.c (_initialize_interpreter): Add declaration.
* iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration.
* jit.c (_initialize_jit): Add declaration.
* language.c (_initialize_language): Add declaration.
* linux-fork.c (_initialize_linux_fork): Add declaration.
* linux-nat.c (_initialize_linux_nat): Add declaration.
* linux-tdep.c (_initialize_linux_tdep): Add declaration.
* linux-thread-db.c (_initialize_thread_db): Add declaration.
* lm32-tdep.c (_initialize_lm32_tdep): Add declaration.
* m2-lang.c (_initialize_m2_language): Add declaration.
* m32c-tdep.c (_initialize_m32c_tdep): Add declaration.
* m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration.
* m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration.
* m32r-tdep.c (_initialize_m32r_tdep): Add declaration.
* m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration.
* m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration.
* m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration.
* m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration.
* m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration.
* m68k-tdep.c (_initialize_m68k_tdep): Add declaration.
* machoread.c (_initialize_machoread): Add declaration.
* macrocmd.c (_initialize_macrocmd): Add declaration.
* macroscope.c (_initialize_macroscope): Add declaration.
* maint-test-options.c (_initialize_maint_test_options): Add declaration.
* maint-test-settings.c (_initialize_maint_test_settings): Add declaration.
* maint.c (_initialize_maint_cmds): Add declaration.
* mdebugread.c (_initialize_mdebugread): Add declaration.
* memattr.c (_initialize_mem): Add declaration.
* mep-tdep.c (_initialize_mep_tdep): Add declaration.
* mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration.
* mi/mi-cmds.c (_initialize_mi_cmds): Add declaration.
* mi/mi-interp.c (_initialize_mi_interp): Add declaration.
* mi/mi-main.c (_initialize_mi_main): Add declaration.
* microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration.
* microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration.
* mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration.
* mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration.
* mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration.
* mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration.
* mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration.
* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration.
* mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration.
* mips-tdep.c (_initialize_mips_tdep): Add declaration.
* mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration.
* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration.
* mipsread.c (_initialize_mipsread): Add declaration.
* mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration.
* mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration.
* moxie-tdep.c (_initialize_moxie_tdep): Add declaration.
* msp430-tdep.c (_initialize_msp430_tdep): Add declaration.
* nds32-tdep.c (_initialize_nds32_tdep): Add declaration.
* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration.
* nios2-tdep.c (_initialize_nios2_tdep): Add declaration.
* nto-procfs.c (_initialize_procfs): Add declaration.
* objc-lang.c (_initialize_objc_language): Add declaration.
* observable.c (_initialize_observer): Add declaration.
* opencl-lang.c (_initialize_opencl_language): Add declaration.
* or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration.
* or1k-tdep.c (_initialize_or1k_tdep): Add declaration.
* osabi.c (_initialize_gdb_osabi): Add declaration.
* osdata.c (_initialize_osdata): Add declaration.
* p-valprint.c (_initialize_pascal_valprint): Add declaration.
* parse.c (_initialize_parse): Add declaration.
* ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration.
* ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration.
* ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration.
* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration.
* ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration.
* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration.
* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration.
* ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration.
* printcmd.c (_initialize_printcmd): Add declaration.
* probe.c (_initialize_probe): Add declaration.
* proc-api.c (_initialize_proc_api): Add declaration.
* proc-events.c (_initialize_proc_events): Add declaration.
* proc-service.c (_initialize_proc_service): Add declaration.
* procfs.c (_initialize_procfs): Add declaration.
* producer.c (_initialize_producer): Add declaration.
* psymtab.c (_initialize_psymtab): Add declaration.
* python/python.c (_initialize_python): Add declaration.
* ravenscar-thread.c (_initialize_ravenscar): Add declaration.
* record-btrace.c (_initialize_record_btrace): Add declaration.
* record-full.c (_initialize_record_full): Add declaration.
* record.c (_initialize_record): Add declaration.
* regcache-dump.c (_initialize_regcache_dump): Add declaration.
* regcache.c (_initialize_regcache): Add declaration.
* reggroups.c (_initialize_reggroup): Add declaration.
* remote-notif.c (_initialize_notif): Add declaration.
* remote-sim.c (_initialize_remote_sim): Add declaration.
* remote.c (_initialize_remote): Add declaration.
* reverse.c (_initialize_reverse): Add declaration.
* riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration.
* riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration.
* riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration.
* riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration.
* riscv-tdep.c (_initialize_riscv_tdep): Add declaration.
* rl78-tdep.c (_initialize_rl78_tdep): Add declaration.
* rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration.
* rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep):
Add declaration.
* rs6000-nat.c (_initialize_rs6000_nat): Add declaration.
* rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration.
* run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration.
* rust-exp.y (_initialize_rust_exp): Add declaration.
* rx-tdep.c (_initialize_rx_tdep): Add declaration.
* s12z-tdep.c (_initialize_s12z_tdep): Add declaration.
* s390-linux-nat.c (_initialize_s390_nat): Add declaration.
* s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration.
* s390-tdep.c (_initialize_s390_tdep): Add declaration.
* score-tdep.c (_initialize_score_tdep): Add declaration.
* ser-go32.c (_initialize_ser_dos): Add declaration.
* ser-mingw.c (_initialize_ser_windows): Add declaration.
* ser-pipe.c (_initialize_ser_pipe): Add declaration.
* ser-tcp.c (_initialize_ser_tcp): Add declaration.
* ser-uds.c (_initialize_ser_socket): Add declaration.
* ser-unix.c (_initialize_ser_hardwire): Add declaration.
* serial.c (_initialize_serial): Add declaration.
* sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration.
* sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration.
* sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration.
* sh-tdep.c (_initialize_sh_tdep): Add declaration.
* skip.c (_initialize_step_skip): Add declaration.
* sol-thread.c (_initialize_sol_thread): Add declaration.
* solib-aix.c (_initialize_solib_aix): Add declaration.
* solib-darwin.c (_initialize_darwin_solib): Add declaration.
* solib-dsbt.c (_initialize_dsbt_solib): Add declaration.
* solib-frv.c (_initialize_frv_solib): Add declaration.
* solib-svr4.c (_initialize_svr4_solib): Add declaration.
* solib-target.c (_initialize_solib_target): Add declaration.
* solib.c (_initialize_solib): Add declaration.
* source-cache.c (_initialize_source_cache): Add declaration.
* source.c (_initialize_source): Add declaration.
* sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration.
* sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration.
* sparc-nat.c (_initialize_sparc_nat): Add declaration.
* sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration.
* sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration.
* sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration.
* sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration.
* sparc-tdep.c (_initialize_sparc_tdep): Add declaration.
* sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration.
* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration.
* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration.
* sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration.
* sparc64-nat.c (_initialize_sparc64_nat): Add declaration.
* sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration.
* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration.
* sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration.
* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration.
* sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration.
* sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration.
* stabsread.c (_initialize_stabsread): Add declaration.
* stack.c (_initialize_stack): Add declaration.
* stap-probe.c (_initialize_stap_probe): Add declaration.
* std-regs.c (_initialize_frame_reg): Add declaration.
* symfile-debug.c (_initialize_symfile_debug): Add declaration.
* symfile-mem.c (_initialize_symfile_mem): Add declaration.
* symfile.c (_initialize_symfile): Add declaration.
* symmisc.c (_initialize_symmisc): Add declaration.
* symtab.c (_initialize_symtab): Add declaration.
* target.c (_initialize_target): Add declaration.
* target-connection.c (_initialize_target_connection): Add
declaration.
* target-dcache.c (_initialize_target_dcache): Add declaration.
* target-descriptions.c (_initialize_target_descriptions): Add declaration.
* thread.c (_initialize_thread): Add declaration.
* tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration.
* tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration.
* tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration.
* tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration.
* tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration.
* tracectf.c (_initialize_ctf): Add declaration.
* tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration.
* tracefile.c (_initialize_tracefile): Add declaration.
* tracepoint.c (_initialize_tracepoint): Add declaration.
* tui/tui-hooks.c (_initialize_tui_hooks): Add declaration.
* tui/tui-interp.c (_initialize_tui_interp): Add declaration.
* tui/tui-layout.c (_initialize_tui_layout): Add declaration.
* tui/tui-regs.c (_initialize_tui_regs): Add declaration.
* tui/tui-stack.c (_initialize_tui_stack): Add declaration.
* tui/tui-win.c (_initialize_tui_win): Add declaration.
* tui/tui.c (_initialize_tui): Add declaration.
* typeprint.c (_initialize_typeprint): Add declaration.
* ui-style.c (_initialize_ui_style): Add declaration.
* unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration.
* unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration.
* unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration.
* unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration.
* unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration.
* unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration.
* unittests/filtered_iterator-selftests.c
(_initialize_filtered_iterator_selftests): Add declaration.
* unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration.
* unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration.
* unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration.
* unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration.
* unittests/main-thread-selftests.c
(_initialize_main_thread_selftests): Add declaration.
* unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration.
* unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration.
* unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration.
* unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration.
* unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration.
* unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration.
* unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration.
* unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration.
* unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration.
* unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration.
* unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration.
* unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration.
* unittests/style-selftests.c (_initialize_style_selftest): Add declaration.
* unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration.
* unittests/tui-selftests.c (_initialize_tui_selftest): Add
declaration.
* unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration.
* unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration.
* unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration.
* unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration.
* user-regs.c (_initialize_user_regs): Add declaration.
* utils.c (_initialize_utils): Add declaration.
* v850-tdep.c (_initialize_v850_tdep): Add declaration.
* valops.c (_initialize_valops): Add declaration.
* valprint.c (_initialize_valprint): Add declaration.
* value.c (_initialize_values): Add declaration.
* varobj.c (_initialize_varobj): Add declaration.
* vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration.
* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration.
* vax-tdep.c (_initialize_vax_tdep): Add declaration.
* windows-nat.c (_initialize_windows_nat): Add declaration.
(_initialize_check_for_gdb_ini): Add declaration.
(_initialize_loadable): Add declaration.
* windows-tdep.c (_initialize_windows_tdep): Add declaration.
* x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration.
* x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration.
* xcoffread.c (_initialize_xcoffread): Add declaration.
* xml-support.c (_initialize_xml_support): Add declaration.
* xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration.
* xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration.
* xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration.
* xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration.
Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
|
|
This commit adds multi-target support to GDB. What this means is that
with this commit, GDB can now be connected to different targets at the
same time. E.g., you can debug a live native process and a core dump
at the same time, connect to multiple gdbservers, etc.
Actually, the word "target" is overloaded in gdb. We already have a
target stack, with pushes several target_ops instances on top of one
another. We also have "info target" already, which means something
completely different to what this patch does.
So from here on, I'll be using the "target connections" term, to mean
an open process_stratum target, pushed on a target stack. This patch
makes gdb have multiple target stacks, and multiple process_stratum
targets open simultaneously. The user-visible changes / commands will
also use this terminology, but of course it's all open to debate.
User-interface-wise, not that much changes. The main difference is
that each inferior may have its own target connection.
A target connection (e.g., a target extended-remote connection) may
support debugging multiple processes, just as before.
Say you're debugging against gdbserver in extended-remote mode, and
you do "add-inferior" to prepare to spawn a new process, like:
(gdb) target extended-remote :9999
...
(gdb) start
...
(gdb) add-inferior
Added inferior 2
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) file a.out
...
(gdb) start
...
At this point, you have two inferiors connected to the same gdbserver.
With this commit, GDB will maintain a target stack per inferior,
instead of a global target stack.
To preserve the behavior above, by default, "add-inferior" makes the
new inferior inherit a copy of the target stack of the current
inferior. Same across a fork - the child inherits a copy of the
target stack of the parent. While the target stacks are copied, the
targets themselves are not. Instead, target_ops is made a
refcounted_object, which means that target_ops instances are
refcounted, which each inferior counting for a reference.
What if you want to create an inferior and connect it to some _other_
target? For that, this commit introduces a new "add-inferior
-no-connection" option that makes the new inferior not share the
current inferior's target. So you could do:
(gdb) target extended-remote :9999
Remote debugging using :9999
...
(gdb) add-inferior -no-connection
[New inferior 2]
Added inferior 2
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) info inferiors
Num Description Executable
1 process 18401 target:/home/pedro/tmp/main
* 2 <null>
(gdb) tar extended-remote :10000
Remote debugging using :10000
...
(gdb) info inferiors
Num Description Executable
1 process 18401 target:/home/pedro/tmp/main
* 2 process 18450 target:/home/pedro/tmp/main
(gdb)
A following patch will extended "info inferiors" to include a column
indicating which connection an inferior is bound to, along with a
couple other UI tweaks.
Other than that, debugging is the same as before. Users interact with
inferiors and threads as before. The only difference is that
inferiors may be bound to processes running in different machines.
That's pretty much all there is to it in terms of noticeable UI
changes.
On to implementation.
Since we can be connected to different systems at the same time, a
ptid_t is no longer a unique identifier. Instead a thread can be
identified by a pair of ptid_t and 'process_stratum_target *', the
later being the instance of the process_stratum target that owns the
process/thread. Note that process_stratum_target inherits from
target_ops, and all process_stratum targets inherit from
process_stratum_target. In earlier patches, many places in gdb were
converted to refer to threads by thread_info pointer instead of
ptid_t, but there are still places in gdb where we start with a
pid/tid and need to find the corresponding inferior or thread_info
objects. So you'll see in the patch many places adding a
process_stratum_target parameter to functions that used to take only a
ptid_t.
Since each inferior has its own target stack now, we can always find
the process_stratum target for an inferior. That is done via a
inf->process_target() convenience method.
Since each inferior has its own target stack, we need to handle the
"beneath" calls when servicing target calls. The solution I settled
with is just to make sure to switch the current inferior to the
inferior you want before making a target call. Not relying on global
context is just not feasible in current GDB. Fortunately, there
aren't that many places that need to do that, because generally most
code that calls target methods already has the current context
pointing to the right inferior/thread. Note, to emphasize -- there's
no method to "switch to this target stack". Instead, you switch the
current inferior, and that implicitly switches the target stack.
In some spots, we need to iterate over all inferiors so that we reach
all target stacks.
Native targets are still singletons. There's always only a single
instance of such targets.
Remote targets however, we'll have one instance per remote connection.
The exec target is still a singleton. There's only one instance. I
did not see the point of instanciating more than one exec_target
object.
After vfork, we need to make sure to push the exec target on the new
inferior. See exec_on_vfork.
For type safety, functions that need a {target, ptid} pair to identify
a thread, take a process_stratum_target pointer for target parameter
instead of target_ops *. Some shared code in gdb/nat/ also need to
gain a target pointer parameter. This poses an issue, since gdbserver
doesn't have process_stratum_target, only target_ops. To fix this,
this commit renames gdbserver's target_ops to process_stratum_target.
I think this makes sense. There's no concept of target stack in
gdbserver, and gdbserver's target_ops really implements a
process_stratum-like target.
The thread and inferior iterator functions also gain
process_stratum_target parameters. These are used to be able to
iterate over threads and inferiors of a given target. Following usual
conventions, if the target pointer is null, then we iterate over
threads and inferiors of all targets.
I tried converting "add-inferior" to the gdb::option framework, as a
preparatory patch, but that stumbled on the fact that gdb::option does
not support file options yet, for "add-inferior -exec". I have a WIP
patchset that adds that, but it's not a trivial patch, mainly due to
need to integrate readline's filename completion, so I deferred that
to some other time.
In infrun.c/infcmd.c, the main change is that we need to poll events
out of all targets. See do_target_wait. Right after collecting an
event, we switch the current inferior to an inferior bound to the
target that reported the event, so that target methods can be used
while handling the event. This makes most of the code transparent to
multi-targets. See fetch_inferior_event.
infrun.c:stop_all_threads is interesting -- in this function we need
to stop all threads of all targets. What the function does is send an
asynchronous stop request to all threads, and then synchronously waits
for events, with target_wait, rinse repeat, until all it finds are
stopped threads. Now that we have multiple targets, it's not
efficient to synchronously block in target_wait waiting for events out
of one target. Instead, we implement a mini event loop, with
interruptible_select, select'ing on one file descriptor per target.
For this to work, we need to be able to ask the target for a waitable
file descriptor. Such file descriptors already exist, they are the
descriptors registered in the main event loop with add_file_handler,
inside the target_async implementations. This commit adds a new
target_async_wait_fd target method that just returns the file
descriptor in question. See wait_one / stop_all_threads in infrun.c.
The 'threads_executing' global is made a per-target variable. Since
it is only relevant to process_stratum_target targets, this is where
it is put, instead of in target_ops.
You'll notice that remote.c includes some FIXME notes. These refer to
the fact that the global arrays that hold data for the remote packets
supported are still globals. For example, if we connect to two
different servers/stubs, then each might support different remote
protocol features. They might even be different architectures, like
e.g., one ARM baremetal stub, and a x86 gdbserver, to debug a
host/controller scenario as a single program. That isn't going to
work correctly today, because of said globals. I'm leaving fixing
that for another pass, since it does not appear to be trivial, and I'd
rather land the base work first. It's already useful to be able to
debug multiple instances of the same server (e.g., a distributed
cluster, where you have full control over the servers installed), so I
think as is it's already reasonable incremental progress.
Current limitations:
- You can only resume more that one target at the same time if all
targets support asynchronous debugging, and support non-stop mode.
It should be possible to support mixed all-stop + non-stop
backends, but that is left for another time. This means that
currently in order to do multi-target with gdbserver you need to
issue "maint set target-non-stop on". I would like to make that
mode be the default, but we're not there yet. Note that I'm
talking about how the target backend works, only. User-visible
all-stop mode works just fine.
- As explained above, connecting to different remote servers at the
same time is likely to produce bad results if they don't support the
exact set of RSP features.
FreeBSD updates courtesy of John Baldwin.
gdb/ChangeLog:
2020-01-10 Pedro Alves <palves@redhat.com>
John Baldwin <jhb@FreeBSD.org>
* aarch64-linux-nat.c
(aarch64_linux_nat_target::thread_architecture): Adjust.
* ada-tasks.c (print_ada_task_info): Adjust find_thread_ptid call.
(task_command_1): Likewise.
* aix-thread.c (sync_threadlists, aix_thread_target::resume)
(aix_thread_target::wait, aix_thread_target::fetch_registers)
(aix_thread_target::store_registers)
(aix_thread_target::thread_alive): Adjust.
* amd64-fbsd-tdep.c: Include "inferior.h".
(amd64fbsd_get_thread_local_address): Pass down target.
* amd64-linux-nat.c (ps_get_thread_area): Use ps_prochandle
thread's gdbarch instead of target_gdbarch.
* break-catch-sig.c (signal_catchpoint_print_it): Adjust call to
get_last_target_status.
* break-catch-syscall.c (print_it_catch_syscall): Likewise.
* breakpoint.c (breakpoints_should_be_inserted_now): Consider all
inferiors.
(update_inserted_breakpoint_locations): Skip if inferiors with no
execution.
(update_global_location_list): When handling moribund locations,
find representative inferior for location's pspace, and use thread
count of its process_stratum target.
* bsd-kvm.c (bsd_kvm_target_open): Pass target down.
* bsd-uthread.c (bsd_uthread_target::wait): Use
as_process_stratum_target and adjust thread_change_ptid and
add_thread calls.
(bsd_uthread_target::update_thread_list): Use
as_process_stratum_target and adjust find_thread_ptid,
thread_change_ptid and add_thread calls.
* btrace.c (maint_btrace_packet_history_cmd): Adjust
find_thread_ptid call.
* corelow.c (add_to_thread_list): Adjust add_thread call.
(core_target_open): Adjust add_thread_silent and thread_count
calls.
(core_target::pid_to_str): Adjust find_inferior_ptid call.
* ctf.c (ctf_target_open): Adjust add_thread_silent call.
* event-top.c (async_disconnect): Pop targets from all inferiors.
* exec.c (add_target_sections): Push exec target on all inferiors
sharing the program space.
(remove_target_sections): Remove the exec target from all
inferiors sharing the program space.
(exec_on_vfork): New.
* exec.h (exec_on_vfork): Declare.
* fbsd-nat.c (fbsd_add_threads): Add fbsd_nat_target parameter.
Pass it down.
(fbsd_nat_target::update_thread_list): Adjust.
(fbsd_nat_target::resume): Adjust.
(fbsd_handle_debug_trap): Add fbsd_nat_target parameter. Pass it
down.
(fbsd_nat_target::wait, fbsd_nat_target::post_attach): Adjust.
* fbsd-tdep.c (fbsd_corefile_thread): Adjust
get_thread_arch_regcache call.
* fork-child.c (gdb_startup_inferior): Pass target down to
startup_inferior and set_executing.
* gdbthread.h (struct process_stratum_target): Forward declare.
(add_thread, add_thread_silent, add_thread_with_info)
(in_thread_list): Add process_stratum_target parameter.
(find_thread_ptid(inferior*, ptid_t)): New overload.
(find_thread_ptid, thread_change_ptid): Add process_stratum_target
parameter.
(all_threads()): Delete overload.
(all_threads, all_non_exited_threads): Add process_stratum_target
parameter.
(all_threads_safe): Use brace initialization.
(thread_count): Add process_stratum_target parameter.
(set_resumed, set_running, set_stop_requested, set_executing)
(threads_are_executing, finish_thread_state): Add
process_stratum_target parameter.
(switch_to_thread): Use is_current_thread.
* i386-fbsd-tdep.c: Include "inferior.h".
(i386fbsd_get_thread_local_address): Pass down target.
* i386-linux-nat.c (i386_linux_nat_target::low_resume): Adjust.
* inf-child.c (inf_child_target::maybe_unpush_target): Remove
have_inferiors check.
* inf-ptrace.c (inf_ptrace_target::create_inferior)
(inf_ptrace_target::attach): Adjust.
* infcall.c (run_inferior_call): Adjust.
* infcmd.c (run_command_1): Pass target to
scoped_finish_thread_state.
(proceed_thread_callback): Skip inferiors with no execution.
(continue_command): Rename 'all_threads' local to avoid hiding
'all_threads' function. Adjust get_last_target_status call.
(prepare_one_step): Adjust set_running call.
(signal_command): Use user_visible_resume_target. Compare thread
pointers instead of inferior_ptid.
(info_program_command): Adjust to pass down target.
(attach_command): Mark target's 'thread_executing' flag.
(stop_current_target_threads_ns): New, factored out from ...
(interrupt_target_1): ... this. Switch inferior before making
target calls.
* inferior-iter.h
(struct all_inferiors_iterator, struct all_inferiors_range)
(struct all_inferiors_safe_range)
(struct all_non_exited_inferiors_range): Filter on
process_stratum_target too. Remove explicit.
* inferior.c (inferior::inferior): Push dummy target on target
stack.
(find_inferior_pid, find_inferior_ptid, number_of_live_inferiors):
Add process_stratum_target parameter, and pass it down.
(have_live_inferiors): Adjust.
(switch_to_inferior_and_push_target): New.
(add_inferior_command, clone_inferior_command): Handle
"-no-connection" parameter. Use
switch_to_inferior_and_push_target.
(_initialize_inferior): Mention "-no-connection" option in
the help of "add-inferior" and "clone-inferior" commands.
* inferior.h: Include "process-stratum-target.h".
(interrupt_target_1): Use bool.
(struct inferior) <push_target, unpush_target, target_is_pushed,
find_target_beneath, top_target, process_target, target_at,
m_stack>: New.
(discard_all_inferiors): Delete.
(find_inferior_pid, find_inferior_ptid, number_of_live_inferiors)
(all_inferiors, all_non_exited_inferiors): Add
process_stratum_target parameter.
* infrun.c: Include "gdb_select.h" and <unordered_map>.
(target_last_proc_target): New global.
(follow_fork_inferior): Push target on new inferior. Pass target
to add_thread_silent. Call exec_on_vfork. Handle target's
reference count.
(follow_fork): Adjust get_last_target_status call. Also consider
target.
(follow_exec): Push target on new inferior.
(struct execution_control_state) <target>: New field.
(user_visible_resume_target): New.
(do_target_resume): Call target_async.
(resume_1): Set target's threads_executing flag. Consider resume
target.
(commit_resume_all_targets): New.
(proceed): Also consider resume target. Skip threads of inferiors
with no execution. Commit resumtion in all targets.
(start_remote): Pass current inferior to wait_for_inferior.
(infrun_thread_stop_requested): Consider target as well. Pass
thread_info pointer to clear_inline_frame_state instead of ptid.
(infrun_thread_thread_exit): Consider target as well.
(random_pending_event_thread): New inferior parameter. Use it.
(do_target_wait): Rename to ...
(do_target_wait_1): ... this. Add inferior parameter, and pass it
down.
(threads_are_resumed_pending_p, do_target_wait): New.
(prepare_for_detach): Adjust calls.
(wait_for_inferior): New inferior parameter. Handle it. Use
do_target_wait_1 instead of do_target_wait.
(fetch_inferior_event): Adjust. Switch to representative
inferior. Pass target down.
(set_last_target_status): Add process_stratum_target parameter.
Save target in global.
(get_last_target_status): Add process_stratum_target parameter and
handle it.
(nullify_last_target_wait_ptid): Clear 'target_last_proc_target'.
(context_switch): Check inferior_ptid == null_ptid before calling
inferior_thread().
(get_inferior_stop_soon): Pass down target.
(wait_one): Rename to ...
(poll_one_curr_target): ... this.
(struct wait_one_event): New.
(wait_one): New.
(stop_all_threads): Adjust.
(handle_no_resumed, handle_inferior_event): Adjust to consider the
event's target.
(switch_back_to_stepped_thread): Also consider target.
(print_stop_event): Update.
(normal_stop): Update. Also consider the resume target.
* infrun.h (wait_for_inferior): Remove declaration.
(user_visible_resume_target): New declaration.
(get_last_target_status, set_last_target_status): New
process_stratum_target parameter.
* inline-frame.c (clear_inline_frame_state(ptid_t)): Add
process_stratum_target parameter, and use it.
(clear_inline_frame_state (thread_info*)): New.
* inline-frame.c (clear_inline_frame_state(ptid_t)): Add
process_stratum_target parameter.
(clear_inline_frame_state (thread_info*)): Declare.
* linux-fork.c (delete_checkpoint_command): Pass target down to
find_thread_ptid.
(checkpoint_command): Adjust.
* linux-nat.c (linux_nat_target::follow_fork): Switch to thread
instead of just tweaking inferior_ptid.
(linux_nat_switch_fork): Pass target down to thread_change_ptid.
(exit_lwp): Pass target down to find_thread_ptid.
(attach_proc_task_lwp_callback): Pass target down to
add_thread/set_running/set_executing.
(linux_nat_target::attach): Pass target down to
thread_change_ptid.
(get_detach_signal): Pass target down to find_thread_ptid.
Consider last target status's target.
(linux_resume_one_lwp_throw, resume_lwp)
(linux_handle_syscall_trap, linux_handle_extended_wait, wait_lwp)
(stop_wait_callback, save_stop_reason, linux_nat_filter_event)
(linux_nat_wait_1, resume_stopped_resumed_lwps): Pass target down.
(linux_nat_target::async_wait_fd): New.
(linux_nat_stop_lwp, linux_nat_target::thread_address_space): Pass
target down.
* linux-nat.h (linux_nat_target::async_wait_fd): Declare.
* linux-tdep.c (get_thread_arch_regcache): Pass target down.
* linux-thread-db.c (struct thread_db_info::process_target): New
field.
(add_thread_db_info): Save target.
(get_thread_db_info): New process_stratum_target parameter. Also
match target.
(delete_thread_db_info): New process_stratum_target parameter.
Also match target.
(thread_from_lwp): Adjust to pass down target.
(thread_db_notice_clone): Pass down target.
(check_thread_db_callback): Pass down target.
(try_thread_db_load_1): Always push the thread_db target.
(try_thread_db_load, record_thread): Pass target down.
(thread_db_target::detach): Pass target down. Always unpush the
thread_db target.
(thread_db_target::wait, thread_db_target::mourn_inferior): Pass
target down. Always unpush the thread_db target.
(find_new_threads_callback, thread_db_find_new_threads_2)
(thread_db_target::update_thread_list): Pass target down.
(thread_db_target::pid_to_str): Pass current inferior down.
(thread_db_target::get_thread_local_address): Pass target down.
(thread_db_target::resume, maintenance_check_libthread_db): Pass
target down.
* nto-procfs.c (nto_procfs_target::update_thread_list): Adjust.
* procfs.c (procfs_target::procfs_init_inferior): Declare.
(proc_set_current_signal, do_attach, procfs_target::wait): Adjust.
(procfs_init_inferior): Rename to ...
(procfs_target::procfs_init_inferior): ... this and adjust.
(procfs_target::create_inferior, procfs_notice_thread)
(procfs_do_thread_registers): Adjust.
* ppc-fbsd-tdep.c: Include "inferior.h".
(ppcfbsd_get_thread_local_address): Pass down target.
* proc-service.c (ps_xfer_memory): Switch current inferior and
program space as well.
(get_ps_regcache): Pass target down.
* process-stratum-target.c
(process_stratum_target::thread_address_space)
(process_stratum_target::thread_architecture): Pass target down.
* process-stratum-target.h
(process_stratum_target::threads_executing): New field.
(as_process_stratum_target): New.
* ravenscar-thread.c
(ravenscar_thread_target::update_inferior_ptid): Pass target down.
(ravenscar_thread_target::wait, ravenscar_add_thread): Pass target
down.
* record-btrace.c (record_btrace_target::info_record): Adjust.
(record_btrace_target::record_method)
(record_btrace_target::record_is_replaying)
(record_btrace_target::fetch_registers)
(get_thread_current_frame_id, record_btrace_target::resume)
(record_btrace_target::wait, record_btrace_target::stop): Pass
target down.
* record-full.c (record_full_wait_1): Switch to event thread.
Pass target down.
* regcache.c (regcache::regcache)
(get_thread_arch_aspace_regcache, get_thread_arch_regcache): Add
process_stratum_target parameter and handle it.
(current_thread_target): New global.
(get_thread_regcache): Add process_stratum_target parameter and
handle it. Switch inferior before calling target method.
(get_thread_regcache): Pass target down.
(get_thread_regcache_for_ptid): Pass target down.
(registers_changed_ptid): Add process_stratum_target parameter and
handle it.
(registers_changed_thread, registers_changed): Pass target down.
(test_get_thread_arch_aspace_regcache): New.
(current_regcache_test): Define a couple local test_target_ops
instances and use them for testing.
(readwrite_regcache): Pass process_stratum_target parameter.
(cooked_read_test, cooked_write_test): Pass mock_target down.
* regcache.h (get_thread_regcache, get_thread_arch_regcache)
(get_thread_arch_aspace_regcache): Add process_stratum_target
parameter.
(regcache::target): New method.
(regcache::regcache, regcache::get_thread_arch_aspace_regcache)
(regcache::registers_changed_ptid): Add process_stratum_target
parameter.
(regcache::m_target): New field.
(registers_changed_ptid): Add process_stratum_target parameter.
* remote.c (remote_state::supports_vCont_probed): New field.
(remote_target::async_wait_fd): New method.
(remote_unpush_and_throw): Add remote_target parameter.
(get_current_remote_target): Adjust.
(remote_target::remote_add_inferior): Push target.
(remote_target::remote_add_thread)
(remote_target::remote_notice_new_inferior)
(get_remote_thread_info): Pass target down.
(remote_target::update_thread_list): Skip threads of inferiors
bound to other targets. (remote_target::close): Don't discard
inferiors. (remote_target::add_current_inferior_and_thread)
(remote_target::process_initial_stop_replies)
(remote_target::start_remote)
(remote_target::remote_serial_quit_handler): Pass down target.
(remote_target::remote_unpush_target): New remote_target
parameter. Unpush the target from all inferiors.
(remote_target::remote_unpush_and_throw): New remote_target
parameter. Pass it down.
(remote_target::open_1): Check whether the current inferior has
execution instead of checking whether any inferior is live. Pass
target down.
(remote_target::remote_detach_1): Pass down target. Use
remote_unpush_target.
(extended_remote_target::attach): Pass down target.
(remote_target::remote_vcont_probe): Set supports_vCont_probed.
(remote_target::append_resumption): Pass down target.
(remote_target::append_pending_thread_resumptions)
(remote_target::remote_resume_with_hc, remote_target::resume)
(remote_target::commit_resume): Pass down target.
(remote_target::remote_stop_ns): Check supports_vCont_probed.
(remote_target::interrupt_query)
(remote_target::remove_new_fork_children)
(remote_target::check_pending_events_prevent_wildcard_vcont)
(remote_target::remote_parse_stop_reply)
(remote_target::process_stop_reply): Pass down target.
(first_remote_resumed_thread): New remote_target parameter. Pass
it down.
(remote_target::wait_as): Pass down target.
(unpush_and_perror): New remote_target parameter. Pass it down.
(remote_target::readchar, remote_target::remote_serial_write)
(remote_target::getpkt_or_notif_sane_1)
(remote_target::kill_new_fork_children, remote_target::kill): Pass
down target.
(remote_target::mourn_inferior): Pass down target. Use
remote_unpush_target.
(remote_target::core_of_thread)
(remote_target::remote_btrace_maybe_reopen): Pass down target.
(remote_target::pid_to_exec_file)
(remote_target::thread_handle_to_thread_info): Pass down target.
(remote_target::async_wait_fd): New.
* riscv-fbsd-tdep.c: Include "inferior.h".
(riscv_fbsd_get_thread_local_address): Pass down target.
* sol2-tdep.c (sol2_core_pid_to_str): Pass down target.
* sol-thread.c (sol_thread_target::wait, ps_lgetregs, ps_lsetregs)
(ps_lgetfpregs, ps_lsetfpregs, sol_update_thread_list_callback):
Adjust.
* solib-spu.c (spu_skip_standalone_loader): Pass down target.
* solib-svr4.c (enable_break): Pass down target.
* spu-multiarch.c (parse_spufs_run): Pass down target.
* spu-tdep.c (spu2ppu_sniffer): Pass down target.
* target-delegates.c: Regenerate.
* target.c (g_target_stack): Delete.
(current_top_target): Return the current inferior's top target.
(target_has_execution_1): Refer to the passed-in inferior's top
target.
(target_supports_terminal_ours): Check whether the initial
inferior was already created.
(decref_target): New.
(target_stack::push): Incref/decref the target.
(push_target, push_target, unpush_target): Adjust.
(target_stack::unpush): Defref target.
(target_is_pushed): Return bool. Adjust to refer to the current
inferior's target stack.
(dispose_inferior): Delete, and inline parts ...
(target_preopen): ... here. Only dispose of the current inferior.
(target_detach): Hold strong target reference while detaching.
Pass target down.
(target_thread_name): Add assertion.
(target_resume): Pass down target.
(target_ops::beneath, find_target_at): Adjust to refer to the
current inferior's target stack.
(get_dummy_target): New.
(target_pass_ctrlc): Pass the Ctrl-C to the first inferior that
has a thread running.
(initialize_targets): Rename to ...
(_initialize_target): ... this.
* target.h: Include "gdbsupport/refcounted-object.h".
(struct target_ops): Inherit refcounted_object.
(target_ops::shortname, target_ops::longname): Make const.
(target_ops::async_wait_fd): New method.
(decref_target): Declare.
(struct target_ops_ref_policy): New.
(target_ops_ref): New typedef.
(get_dummy_target): Declare function.
(target_is_pushed): Return bool.
* thread-iter.c (all_matching_threads_iterator::m_inf_matches)
(all_matching_threads_iterator::all_matching_threads_iterator):
Handle filter target.
* thread-iter.h (struct all_matching_threads_iterator, struct
all_matching_threads_range, class all_non_exited_threads_range):
Filter by target too. Remove explicit.
* thread.c (threads_executing): Delete.
(inferior_thread): Pass down current inferior.
(clear_thread_inferior_resources): Pass down thread pointer
instead of ptid_t.
(add_thread_silent, add_thread_with_info, add_thread): Add
process_stratum_target parameter. Use it for thread and inferior
searches.
(is_current_thread): New.
(thread_info::deletable): Use it.
(find_thread_ptid, thread_count, in_thread_list)
(thread_change_ptid, set_resumed, set_running): New
process_stratum_target parameter. Pass it down.
(set_executing): New process_stratum_target parameter. Pass it
down. Adjust reference to 'threads_executing'.
(threads_are_executing): New process_stratum_target parameter.
Adjust reference to 'threads_executing'.
(set_stop_requested, finish_thread_state): New
process_stratum_target parameter. Pass it down.
(switch_to_thread): Also match inferior.
(switch_to_thread): New process_stratum_target parameter. Pass it
down.
(update_threads_executing): Reimplement.
* top.c (quit_force): Pop targets from all inferior.
(gdb_init): Don't call initialize_targets.
* windows-nat.c (windows_nat_target) <get_windows_debug_event>:
Declare.
(windows_add_thread, windows_delete_thread): Adjust.
(get_windows_debug_event): Rename to ...
(windows_nat_target::get_windows_debug_event): ... this. Adjust.
* tracefile-tfile.c (tfile_target_open): Pass down target.
* gdbsupport/common-gdbthread.h (struct process_stratum_target):
Forward declare.
(switch_to_thread): Add process_stratum_target parameter.
* mi/mi-interp.c (mi_on_resume_1): Add process_stratum_target
parameter. Use it.
(mi_on_resume): Pass target down.
* nat/fork-inferior.c (startup_inferior): Add
process_stratum_target parameter. Pass it down.
* nat/fork-inferior.h (startup_inferior): Add
process_stratum_target parameter.
* python/py-threadevent.c (py_get_event_thread): Pass target down.
gdb/gdbserver/ChangeLog:
2020-01-10 Pedro Alves <palves@redhat.com>
* fork-child.c (post_fork_inferior): Pass target down to
startup_inferior.
* inferiors.c (switch_to_thread): Add process_stratum_target
parameter.
* lynx-low.c (lynx_target_ops): Now a process_stratum_target.
* nto-low.c (nto_target_ops): Now a process_stratum_target.
* linux-low.c (linux_target_ops): Now a process_stratum_target.
* remote-utils.c (prepare_resume_reply): Pass the target to
switch_to_thread.
* target.c (the_target): Now a process_stratum_target.
(done_accessing_memory): Pass the target to switch_to_thread.
(set_target_ops): Ajust to use process_stratum_target.
* target.h (struct target_ops): Rename to ...
(struct process_stratum_target): ... this.
(the_target, set_target_ops): Adjust.
(prepare_to_access_memory): Adjust comment.
* win32-low.c (child_xfer_memory): Adjust to use
process_stratum_target.
(win32_target_ops): Now a process_stratum_target.
|
|
gdb/ChangeLog:
Update copyright year range in all GDB files.
|
|
Also renames the member variable to m_language to make code easier to read
when more functions become member functions.
I was originally hoping to eventually make m_language private (after a few
more patches), but unfortunately then it no longer counts as a POD type,
which means gdbsupport/poison.h won't let us use memset to initialize
this type, which psymtabs rely on to clear padding bytes so that bcache
can work properly.
gdb/ChangeLog:
2019-12-15 Christian Biesinger <cbiesinger@google.com>
* ada-lang.c (ada_add_block_symbols): Update.
(ada_collect_symbol_completion_matches): Update.
* ax-gdb.c (gen_expr): Update.
* block.c (block_lookup_symbol): Update.
(block_lookup_symbol_primary): Update.
(block_find_symbol): Update.
* cp-namespace.c (cp_lookup_symbol_imports_or_template): Update.
* dbxread.c (process_one_symbol): Update.
* dictionary.c (insert_symbol_hashed): Update.
(collate_pending_symbols_by_language): Update.
(mdict_add_symbol): Update.
* dwarf-index-write.c (write_psymbols): Update.
* dwarf2read.c (fixup_go_packaging): Update.
* findvar.c (read_var_value): Update.
* ft32-tdep.c (ft32_skip_prologue): Update.
* go-lang.c (go_symbol_package_name): Update.
* language.h (scoped_switch_to_sym_language_if_auto::
scoped_switch_to_sym_language_if_auto): Update.
* linespec.c (find_method): Update.
(find_label_symbols_in_block): Update.
* mdebugread.c (parse_symbol): Update.
* mi/mi-cmd-stack.c (list_arg_or_local): Update.
* minsyms.c (add_minsym_to_demangled_hash_table): Update.
(minimal_symbol_reader::install): Update.
* moxie-tdep.c (moxie_skip_prologue): Update.
* parse.c (parse_exp_in_context): Update.
* psymtab.c (psymbol_name_matches): Update.
(match_partial_symbol): Update.
(lookup_partial_symbol): Update.
(psymbol_hash): Update.
(psymbol_compare): Update.
* python/py-framefilter.c (extract_sym): Update.
(py_print_single_arg): Update.
* stabsread.c (define_symbol): Update.
* stack.c (print_frame_arg): Update.
(find_frame_funname): Update.
(info_frame_command_core): Update.
* symfile.c (set_initial_language): Update.
* symtab.c (symbol_set_demangled_name): Update.
(symbol_get_demangled_name): Update.
(symbol_set_language): Update.
(symbol_find_demangled_name): Update.
(symbol_set_names): Update.
(general_symbol_info::natural_name): Update.
(general_symbol_info::demangled_name): Update.
(general_symbol_info::search_name): Update.
(symbol_matches_search_name): Update.
(eq_symbol_entry): Update.
(iterate_over_symbols): Update.
(completion_list_add_symbol): Update.
(completion_list_add_msymbol): Update.
(completion_list_add_fields): Update.
* symtab.h (struct general_symbol_info) <language>: New function.
<language>: Rename to...
<m_language>: ...this.
(SYMBOL_LANGUAGE): Remove.
(MSYMBOL_LANGUAGE): Remove.
(struct symbol) <ctor>: Update.
* xstormy16-tdep.c (xstormy16_skip_prologue): Update.
Change-Id: I6464d477457e61639c63ddf8b145e407a35c235a
|
|
The documentation for make-breakpoint from the Guile API and the `spec'
variant of the gdb.Breakpoint constructor from the Python API state that
the format acceptable for location strings is the same as that accepted
by the break command. However, using the -probe qualifier at the
beginning of the location string causes a GDB internal error as it
attempts to decode a probe location in the wrong code path. Without this
functionality, there doesn't appear to be another way to set breakpoints
on probe points from Python or Guile scripts.
This patch introduces a new helper function that returns a
breakpoint_ops instance appropriate for a parsed location and updates
the Guile and Python bindings to use said function, rather than the
current hard-coded use of bkpt_breakpoint_ops. Since this logic is
duplicated in the handling of the `break' and `trace' commands, those
are also updated to call into the new helper function.
gdb/ChangeLog:
2019-12-10 George Barrett <bob@bob131.so>
Fix scripted probe breakpoints.
* breakpoint.c (tracepoint_probe_breakpoint_ops): Move
declaration forward.
(breakpoint_ops_for_event_location_type)
(breakpoint_ops_for_event_location): Add function definitions.
(break_command_1, trace_command): Use
breakpoint_ops_for_event_location.
* breakpoint.h (breakpoint_ops_for_event_location): Add function
declarations.
* guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Use
breakpoint_ops_for_event_location.
* python/py-breakpoint.c (bppy_init): Use
breakpoint_ops_for_event_location.
gdb/testsuite/ChangeLog:
2019-12-10 George Barrett <bob@bob131.so>
Test scripted probe breakpoints.
* gdb.guile/scm-breakpoint.c (main): Add probe point.
* gdb.python/py-breakpoint.c (main): Likewise.
* gdb.guile/scm-breakpoint.exp (test_bkpt_probe): Add probe
specifier test.
* gdb.python/py-breakpoint.exp (test_bkpt_probe): Likewise.
|
|
I noticed that the gdbarch parameter of lookup_typename was unused, so I
removed it (as well as from lookup_signed_typename and
lookup_unsigned_typename) and updated all callers.
Tested by rebuilding.
gdb/ChangeLog:
* c-exp.y: Update calls to lookup_typename,
lookup_signed_typename and lookup_unsigned_typename.
* c-lang.c (evaluate_subexp_c): Likewise.
* cp-namespace.c (cp_lookup_symbol_imports_or_template):
Likewise.
* eval.c (binop_promote): Likewise.
* gdbtypes.c (lookup_typename): Remove gdbarch parameter.
(lookup_unsigned_typename): Likewise.
(lookup_signed_typename): Likewise.
* gdbtypes.h (lookup_unsigned_typename): Likewise.
(lookup_signed_typename): Likewise.
(lookup_typename): Likewise.
* guile/scm-type.c (tyscm_lookup_typename): Update calls to
lookup_typename, lookup_signed_typename,
lookup_unsigned_typename.
* m2-exp.y: Likewise.
* printcmd.c (printf_wide_c_string): Likewise.
(ui_printf): Likewise.
* python/py-type.c (typy_lookup_typename): Likewise.
* python/py-xmethods.c (python_xmethod_worker::invoke):
Likewise.
* rust-exp.y: Likewise.
|
|
This patch adds . as an allowed character for user defined commands.
Combined with 'define-prefix', this allows to e.g. define a set of Valgrind
specific user command corresponding to the Valgrind monitor commands
(such as check_memory, v.info, v.set, ...).
gdb/ChangeLog
2019-11-30 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* command.h (valid_cmd_char_p): Declare.
* cli/cli-decode.c (valid_cmd_char_p): New function factorizing
the check of valid command char.
(find_command_name_length, valid_user_defined_cmd_name_p): Use
valid_cmd_char_p.
* cli/cli-script.c (validate_comname): Likewise.
* completer.c (gdb_completer_command_word_break_characters):
Do not remove . from the word break char, update comments.
(complete_line_internal_1): Use valid_cmd_char_p.
* guile/scm-cmd.c (gdbscm_parse_command_name): Likewise.
* python/py-cmd.c (gdbpy_parse_command_name): Likewise.
gdb/testsuite/ChangeLog
2019-11-30 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.base/define.exp: Test . in command names.
* gdb.base/setshow.exp: Update test, as . is now part of
command name.
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Introduce a new class to wrap up the parameters needed for the
function search_symbols, which has now become a member function of
this new class.
The motivation is that search_symbols already takes a lot of
parameters, and a future commit is going to add even more. This
commit hopefully makes collecting the state required for a search
easier.
As part of this conversion the list of filenames in which to search
has been converted to a std::vector.
There should be no user visible changes after this commit.
gdb/ChangeLog:
* python/python.c (gdbpy_rbreak): Convert to using
global_symbol_searcher.
* symtab.c (file_matches): Convert return type to bool, change
file list to std::vector, update header comment.
(search_symbols): Rename to...
(global_symbol_searcher::search): ...this and update now its
a member function of global_symbol_searcher. Take account of the
changes to file_matches.
(symtab_symbol_info): Convert to using global_symbol_searcher.
(rbreak_command): Likewise.
(search_module_symbols): Likewise.
* symtab.h (enum symbol_search): Update comment.
(search_symbols): Remove declaration.
(class global_symbol_searcher): New class.
Change-Id: I488ab292a892d9e9e84775c632c5f198b6ad3710
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This adds a "name_allocated" field to cmd_list_element, so that
commands can own their "name" when necessary. Then, this changes a
few spots in gdb that currently free the name by hand to instead use
this facility.
gdb/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* python/py-function.c (fnpy_init): Update.
* value.h (add_internal_function): Adjust declaration.
* value.c (function_destroyer): Remove.
(do_add_internal_function): Don't set destroyer or copy name.
(add_internal_function): Take unique_xmalloc_ptr<char> for name.
Set name_allocated.
* python/py-cmd.c (cmdpy_destroyer): Don't free "name".
(cmdpy_init): Set name_allocated.
* cli/cli-decode.h (struct cmd_list_element) <name_allocated>: New
member.
(~cmd_list_element): Free "name" if needed.
Change-Id: Ie1435cea5bbf4bd92056125f112917c607cbb761
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add_internal_function sets a command destroyer that frees the doc
string. However, many callers do not pass in an allocated doc string.
This adds a new overload to clearly differentiate the two cases,
fixing the latent bug.
gdb/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* value.h (add_internal_function): Add new overload. Move
documentation from value.h.
* value.c (do_add_internal_function): New function.
(add_internal_function): Use it. Add new overload.
(function_destroyer): Don't free doc.
* python/py-function.c (fnpy_init): Update.
Change-Id: I3f6df925bc6b3e1bccbad9eeebc487b908bb5a2a
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Python commands manage their "doc" string manually, but
cmd_list_element already has doc_allocated to handle this case. This
changes the Python code to use the existing facility.
gdb/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* python/py-cmd.c (cmdpy_destroyer): Don't free "doc".
(cmdpy_init): Set "doc_allocated".
Change-Id: I0014edc117b051bba1f4db267687d231e7fe9b56
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This changes gdb.post_event to use the new run_on_main_thread
function. This is somewhat tricky because the Python GIL must be held
while manipulating reference counts.
2019-11-26 Tom Tromey <tom@tromey.com>
* python/python.c (class gdbpy_gil): New.
(struct gdbpy_event): Add constructor, destructor, operator().
(gdbpy_post_event): Use run_on_main_thread.
(gdbpy_initialize_events): Remove.
(do_start_initialization): Update.
Change-Id: Ie4431e60f328dae48bd96b6c6a8e875e70bda1de
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When running GDB tests under Valgrind, various tests are failing due
to invalid memory access.
Here is the stack trace reported by Valgrind, for gdb.base/freebpcmd.exp :
==18658== Invalid read of size 8
==18658== at 0x7F9107: is_main (signalmodule.c:195)
==18658== by 0x7F9107: PyOS_InterruptOccurred (signalmodule.c:1730)
==18658== by 0x3696E2: check_quit_flag() (extension.c:829)
==18658== by 0x36980B: restore_active_ext_lang(active_ext_lang_state*) (extension.c:782)
==18658== by 0x48F617: gdbpy_enter::~gdbpy_enter() (python.c:235)
==18658== by 0x47BB71: add_thread_object(thread_info*) (object.h:470)
==18658== by 0x53A84D: operator() (std_function.h:687)
==18658== by 0x53A84D: notify (observable.h:106)
==18658== by 0x53A84D: add_thread_silent(ptid_t) (thread.c:311)
==18658== by 0x3CD954: inf_ptrace_target::create_inferior(char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&
, char**, int) (inf-ptrace.c:139)
==18658== by 0x3FE644: linux_nat_target::create_inferior(char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&,
char**, int) (linux-nat.c:1094)
==18658== by 0x3D5727: run_command_1(char const*, int, run_how) (infcmd.c:633)
==18658== by 0x2C05D1: cmd_func(cmd_list_element*, char const*, int) (cli-decode.c:1948)
==18658== by 0x53F29F: execute_command(char const*, int) (top.c:639)
==18658== by 0x3638EB: command_handler(char const*) (event-top.c:586)
==18658== by 0x36468C: command_line_handler(std::unique_ptr<char, gdb::xfree_deleter<char> >&&) (event-top.c:771)
==18658== by 0x36407C: gdb_rl_callback_handler(char*) (event-top.c:217)
==18658== by 0x5B2A1F: rl_callback_read_char (callback.c:281)
==18658== by 0x36346D: gdb_rl_callback_read_char_wrapper_noexcept() (event-top.c:175)
==18658== by 0x363F70: gdb_rl_callback_read_char_wrapper(void*) (event-top.c:192)
==18658== by 0x3633AF: stdin_event_handler(int, void*) (event-top.c:514)
==18658== by 0x362504: gdb_wait_for_event (event-loop.c:857)
==18658== by 0x362504: gdb_wait_for_event(int) (event-loop.c:744)
==18658== by 0x362676: gdb_do_one_event() [clone .part.11] (event-loop.c:321)
==18658== by 0x3627AD: gdb_do_one_event (event-loop.c:303)
==18658== by 0x3627AD: start_event_loop() (event-loop.c:370)
==18658== by 0x41D35A: captured_command_loop() (main.c:381)
==18658== by 0x41F2A4: captured_main (main.c:1224)
==18658== by 0x41F2A4: gdb_main(captured_main_args*) (main.c:1239)
==18658== by 0x227D0A: main (gdb.c:32)
==18658== Address 0x10 is not stack'd, malloc'd or (recently) free'd
The problem seems to be created by gdbpy_enter::~gdbpy_enter () releasing the GIL lock
too early:
~gdbpy_enter () does:
...
PyGILState_Release (m_state);
python_gdbarch = m_gdbarch;
python_language = m_language;
restore_active_ext_lang (m_previous_active);
}
So, it releases the GIL lock, does 2 assignments and then leads to the following
call sequence:
restore_active_ext_lang => check_quit_flag => python.c gdbpy_check_quit_flag
=> PyOS_InterruptOccurred => is_main.
is_main code is:
static int
is_main(_PyRuntimeState *runtime)
{
unsigned long thread = PyThread_get_thread_ident();
PyInterpreterState *interp = _PyRuntimeState_GetThreadState(runtime)->interp;
return (thread == runtime->main_thread
&& interp == runtime->interpreters.main);
}
The macros and functions to access the thread state are documented as:
/* Variable and macro for in-line access to current thread
and interpreter state */
#define _PyRuntimeState_GetThreadState(runtime) \
((PyThreadState*)_Py_atomic_load_relaxed(&(runtime)->gilstate.tstate_current))
/* Get the current Python thread state.
Efficient macro reading directly the 'gilstate.tstate_current' atomic
variable. The macro is unsafe: it does not check for error and it can
return NULL.
The caller must hold the GIL.
See also PyThreadState_Get() and PyThreadState_GET(). */
#define _PyThreadState_GET() _PyRuntimeState_GetThreadState(&_PyRuntime)
So, we see that GDB releases the GIL and then potentially calls
_PyRuntimeState_GetThreadState that needs the GIL.
It is not very clear why the problem is only observed when running under
Valgrind. Probably caused by the slowdown due to Valgrind and/or to the 'single
thread' scheduling by Valgrind.
This patch fixes the crashes by releasing the GIT lock later.
2019-11-26 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* python/python.c (gdbpy_enter::~gdbpy_enter): Release GIL after
restore_active_ext_lang, as GIL is needed for (indirectly)
called PyOS_InterruptOccurred.
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Similar to the MSYMBOL version of this patch, improves readability
and will eventually allow making name private.
gdb/ChangeLog:
2019-11-22 Christian Biesinger <cbiesinger@google.com>
* ada-exp.y: Update.
* ada-lang.c (sort_choices): Update.
(ada_print_symbol_signature): Update.
(resolve_subexp): Update.
(ada_parse_renaming): Update.
(ada_read_renaming_var_value): Update.
(lesseq_defined_than): Update.
(remove_extra_symbols): Update.
(remove_irrelevant_renamings): Update.
(ada_add_block_symbols): Update.
(ada_collect_symbol_completion_matches): Update.
(ada_is_renaming_symbol): Update.
(aggregate_assign_from_choices): Update.
(ada_evaluate_subexp): Update.
(ada_has_this_exception_support): Update.
(ada_is_non_standard_exception_sym): Update.
(ada_add_exceptions_from_frame): Update.
(ada_add_global_exceptions): Update.
(ada_print_subexp): Update.
* ax-gdb.c (gen_var_ref): Update.
(gen_maybe_namespace_elt): Update.
(gen_expr_for_cast): Update.
(gen_expr): Update.
* block.h: Update.
* blockframe.c (find_pc_partial_function): Update.
* breakpoint.c (print_breakpoint_location): Update.
(update_static_tracepoint): Update.
* btrace.c (ftrace_print_function_name): Update.
(ftrace_function_switched): Update.
* buildsym.c (find_symbol_in_list): Update.
* c-exp.y: Update.
* c-typeprint.c (c_print_typedef): Update.
(c_type_print_template_args): Update.
* cli/cli-cmds.c (edit_command): Update.
(list_command): Update.
(print_sal_location): Update.
* coffread.c (patch_opaque_types): Update.
(process_coff_symbol): Update.
(coff_read_enum_type): Update.
* compile/compile-c-symbols.c (c_symbol_substitution_name): Update.
(convert_one_symbol): Update.
(hash_symname): Update.
(eq_symname): Update.
* compile/compile-cplus-symbols.c (convert_one_symbol): Update.
* compile/compile-cplus-types.c (debug_print_scope): Update.
* compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update.
* compile/compile-object-load.c (get_out_value_type): Update.
* cp-namespace.c (cp_scan_for_anonymous_namespaces): Update.
(search_symbol_list): Update.
(cp_lookup_symbol_imports_or_template): Update.
* cp-support.c (overload_list_add_symbol): Update.
* ctfread.c (psymtab_to_symtab): Update.
* dbxread.c (cp_set_block_scope): Update.
* dictionary.c (iter_match_first_hashed): Update.
(iter_match_next_hashed): Update.
(insert_symbol_hashed): Update.
(iter_match_next_linear): Update.
* dictionary.h: Update.
* dwarf2loc.c (func_get_frame_base_dwarf_block): Update.
(locexpr_describe_location_piece): Update.
(locexpr_describe_location_1): Update.
(locexpr_generate_c_location): Update.
(loclist_describe_location): Update.
(loclist_generate_c_location): Update.
* dwarf2read.c (dw2_debug_names_lookup_symbol): Update.
(read_func_scope): Update.
(process_enumeration_scope): Update.
(new_symbol): Update.
(dwarf2_const_value): Update.
(dwarf2_symbol_mark_computed): Update.
* eval.c (evaluate_funcall): Update.
(evaluate_subexp_standard): Update.
* expprint.c (print_subexp_standard): Update.
(dump_subexp_body_standard): Update.
* f-valprint.c (info_common_command_for_block): Update.
* findvar.c (get_hosting_frame): Update.
(default_read_var_value): Update.
* go-lang.c (go_symbol_package_name): Update.
* guile/scm-block.c (bkscm_print_block_smob): Update.
* guile/scm-symbol.c (syscm_print_symbol_smob): Update.
(gdbscm_symbol_name): Update.
(gdbscm_symbol_linkage_name): Update.
(gdbscm_symbol_print_name): Update.
* infcall.c (get_function_name): Update.
* infcmd.c (jump_command): Update.
(finish_command): Update.
* infrun.c (insert_exception_resume_breakpoint): Update.
* linespec.c (canonicalize_linespec): Update.
(create_sals_line_offset): Update.
(convert_linespec_to_sals): Update.
(complete_label): Update.
(find_label_symbols_in_block): Update.
* m2-typeprint.c (m2_print_typedef): Update.
* mdebugread.c (mdebug_reg_to_regnum): Update.
(parse_symbol): Update.
(mylookup_symbol): Update.
* mi/mi-cmd-stack.c (list_arg_or_local): Update.
(list_args_or_locals): Update.
* objc-lang.c (compare_selectors): Update.
(info_selectors_command): Update.
(compare_classes): Update.
(info_classes_command): Update.
(find_imps): Update.
* p-typeprint.c (pascal_print_typedef): Update.
* printcmd.c (build_address_symbolic): Update.
(info_address_command): Update.
(print_variable_and_value): Update.
* python/py-framefilter.c (extract_sym): Update.
(py_print_single_arg): Update.
* python/py-symbol.c (sympy_str): Update.
(sympy_get_name): Update.
(sympy_get_linkage_name): Update.
* python/python.c (gdbpy_rbreak): Update.
* record-btrace.c (btrace_get_bfun_name): Update.
(btrace_call_history): Update.
* rust-lang.c (rust_print_typedef): Update.
* solib-frv.c (frv_fdpic_find_canonical_descriptor): Update.
* stabsread.c (stab_reg_to_regnum): Update.
(define_symbol): Update.
(read_enum_type): Update.
(common_block_end): Update.
(cleanup_undefined_types_1): Update.
(scan_file_globals): Update.
* stack.c (print_frame_arg): Update.
(print_frame_args): Update.
(find_frame_funname): Update.
(info_frame_command_core): Update.
(iterate_over_block_locals): Update.
(print_block_frame_labels): Update.
(do_print_variable_and_value): Update.
(iterate_over_block_arg_vars): Update.
(return_command): Update.
* symmisc.c (dump_symtab_1): Update.
(print_symbol): Update.
* symtab.c (eq_symbol_entry): Update.
(symbol_cache_dump): Update.
(lookup_language_this): Update.
(find_pc_sect_line): Update.
(skip_prologue_sal): Update.
(symbol_search::compare_search_syms): Update.
(treg_matches_sym_type_name): Update.
(search_symbols): Update.
(print_symbol_info): Update.
(rbreak_command): Update.
(completion_list_add_symbol): Update.
(find_gnu_ifunc): Update.
(get_symbol_address): Update.
(search_module_symbols): Update.
(info_module_subcommand): Update.
* symtab.h (SYMBOL_NATURAL_NAME): Remove.
(SYMBOL_LINKAGE_NAME): Remove.
(SYMBOL_DEMANGLED_NAME): Remove.
(SYMBOL_PRINT_NAME): Remove.
(SYMBOL_SEARCH_NAME): Remove.
* tracepoint.c (set_traceframe_context): Update.
(validate_actionline): Update.
(collection_list::collect_symbol): Update.
(encode_actions_1): Update.
(info_scope_command): Update.
(print_one_static_tracepoint_marker): Update.
* typeprint.c (typedef_hash_table::add_template_parameters): Update.
* valops.c (address_of_variable): Update.
(find_overload_match): Update.
(find_oload_champ): Update.
Change-Id: I76bdc8b44eea6876bf03af9d351f8e90cc0154b2
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Improves readability. In the future, it will also allow making the name
private, once the name setter functions become member functions.
gdb/ChangeLog:
2019-11-22 Christian Biesinger <cbiesinger@google.com>
* ada-lang.c (ada_lookup_simple_minsym): Update.
(ada_collect_symbol_completion_matches): Update.
* ada-tasks.c (read_atcb): Update.
* amd64-windows-tdep.c (amd64_skip_main_prologue): Update.
(amd64_windows_skip_trampoline_code): Update.
* arm-tdep.c (skip_prologue_function): Update.
(arm_skip_stack_protector): Update.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
(arm_wince_skip_main_prologue): Update.
* ax-gdb.c (gen_expr): Update.
* block.c (call_site_for_pc): Update.
* blockframe.c (find_pc_partial_function): Update.
* breakpoint.c (set_breakpoint_location_function): Update.
* btrace.c (ftrace_print_function_name): Update.
(ftrace_function_switched): Update.
* c-valprint.c (print_unpacked_pointer): Update.
* coffread.c (coff_symfile_read): Update.
* compile/compile-c-symbols.c (convert_symbol_bmsym): Update.
* compile/compile-cplus-symbols.c (convert_symbol_bmsym): Update.
* dwarf-index-write.c (write_psymbols): Update.
* dwarf2loc.c (call_site_to_target_addr): Update.
(func_verify_no_selftailcall): Update.
(tailcall_dump): Update.
(call_site_find_chain_1): Update.
(dwarf_expr_reg_to_entry_parameter): Update.
* elfread.c (elf_gnu_ifunc_record_cache): Update.
* eval.c (evaluate_funcall): Update.
(evaluate_subexp_standard): Update.
(evaluate_subexp_for_sizeof): Update.
* expprint.c (print_subexp_standard): Update.
(dump_subexp_body_standard): Update.
* frame.c (get_prev_frame_always_1): Update.
* frv-tdep.c (frv_skip_main_prologue): Update.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Update.
* gnu-v3-abi.c (gnuv3_rtti_type): Update.
(gnuv3_get_typename_from_type_info): Update.
(gnuv3_skip_trampoline): Update.
* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update.
* i386-tdep.c (i386_skip_main_prologue): Update.
(i386_pe_skip_trampoline_code): Update.
* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update.
* infcall.c (get_function_name): Update.
* linespec.c (minsym_found): Update.
* linux-fork.c (info_checkpoints_command): Update.
* m32c-tdep.c (m32c_m16c_address_to_pointer): Update.
(m32c_m16c_pointer_to_address): Update.
* maint.c (maintenance_translate_address): Update.
* minsyms.c (add_minsym_to_hash_table): Update.
(add_minsym_to_demangled_hash_table): Update.
(lookup_minimal_symbol_mangled): Update.
(lookup_minimal_symbol_demangled): Update.
(lookup_minimal_symbol_linkage): Update.
(lookup_minimal_symbol_text): Update.
(lookup_minimal_symbol_by_pc_name): Update.
(minimal_symbol_is_less_than): Update.
(compact_minimal_symbols): Update.
(build_minimal_symbol_hash_tables): Update.
(find_solib_trampoline_target): Update.
* mips-tdep.c (mips_stub_frame_sniffer): Update.
(mips_skip_pic_trampoline_code): Update.
* msp430-tdep.c (msp430_skip_trampoline_code): Update.
* objc-lang.c (info_selectors_command): Update.
(info_classes_command): Update.
(find_methods): Update.
(find_imps): Update.
* p-valprint.c (pascal_val_print): Update.
* ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code): Update.
* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
* printcmd.c (build_address_symbolic): Update.
(info_symbol_command): Update.
* psymtab.c (psymbol_name_matches): Update.
(match_partial_symbol): Update.
(lookup_partial_symbol): Update.
(print_partial_symbols): Update.
(sort_pst_symbols): Update.
(maintenance_check_psymtabs): Update.
* python/py-framefilter.c (py_print_frame): Update.
* python/python.c (gdbpy_rbreak): Update.
* record-btrace.c (btrace_get_bfun_name): Update.
(btrace_call_history): Update.
* rs6000-tdep.c (rs6000_skip_main_prologue): Update.
(rs6000_skip_trampoline_code): Update.
* sol-thread.c (info_cb): Update.
* stabsread.c (scan_file_globals): Update.
* stack.c (find_frame_funname): Update.
(info_frame_command_core): Update.
* symmisc.c (dump_msymbols): Update.
* symtab.c (symbol_natural_name): Rename to..,
(general_symbol_info::natural_name): ...this.
(symbol_demangled_name): Rename to...
(general_symbol_info::demangled_name): ...this.
(symbol_search_name): Rename to...
(general_symbol_info::search_name): ...this.
(symbol_matches_search_name): Update.
(find_pc_sect_line): Update.
(skip_prologue_sal): Update.
(search_symbols): Update.
(print_msymbol_info): Update.
(rbreak_command): Update.
(completion_list_add_msymbol): Update.
(completion_list_objc_symbol): Update.
(get_msymbol_address): Update.
* symtab.h (struct general_symbol_info): Add member functions
natural_name (), linkage_name (), print_name (), demangled_name (),
and search_name ().
(SYMBOL_NATURAL_NAME): Update.
(symbol_natural_name): Move to a member function on general_symbol_info.
(SYMBOL_DEMANGLED_NAME): Update.
(symbol_demangled_name): Move to a member function on
general_symbol_info.
(SYMBOL_SEARCH_NAME): Update.
(symbol_search_name): Move to a member function on general_symbol_info.
(MSYMBOL_NATURAL_NAME): Remove.
(MSYMBOL_LINKAGE_NAME): Remove.
(MSYMBOL_PRINT_NAME): Remove.
(MSYMBOL_DEMANGLED_NAME): Remove.
(MSYMBOL_SEARCH_NAME): Remove.
* x86-tdep.c (x86_in_indirect_branch_thunk): Update.
Change-Id: I65aa529843a9903e174ce799037e41f954a9fcee
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functions.
valgrind reports leaks in many python tests, such as:
==17162== VALGRIND_GDB_ERROR_BEGIN
==17162== 8,208 (5,472 direct, 2,736 indirect) bytes in 57 blocks are definitely lost in loss record 7,551 of 7,679
==17162== at 0x4835753: malloc (vg_replace_malloc.c:307)
==17162== by 0x6EAFD1: _PyObject_New (object.c:279)
==17162== by 0x4720E6: blpy_iter(_object*) (py-block.c:92)
==17162== by 0x698772: PyObject_GetIter (abstract.c:2577)
==17162== by 0x2343BE: _PyEval_EvalFrameDefault (ceval.c:3159)
==17162== by 0x22E9E2: function_code_fastcall (call.c:283)
==17162== by 0x2340A8: _PyObject_Vectorcall (abstract.h:127)
==17162== by 0x2340A8: call_function (ceval.c:4987)
==17162== by 0x2340A8: _PyEval_EvalFrameDefault (ceval.c:3486)
==17162== by 0x22E9E2: function_code_fastcall (call.c:283)
==17162== by 0x82172B: _PyObject_Vectorcall (abstract.h:127)
==17162== by 0x82172B: method_vectorcall (classobject.c:67)
==17162== by 0x6AF474: _PyObject_Vectorcall (abstract.h:127)
==17162== by 0x6AF474: _PyObject_CallNoArg (abstract.h:153)
==17162== by 0x6AF474: _PyObject_CallFunctionVa (call.c:914)
==17162== by 0x6B0673: callmethod (call.c:1010)
==17162== by 0x6B0673: _PyObject_CallMethod_SizeT (call.c:1103)
==17162== by 0x477DFE: gdb_PyObject_CallMethod<> (python-internal.h:182)
==17162== by 0x477DFE: get_py_iter_from_func(_object*, char const*) (py-framefilter.c:272)
==17162== by 0x4791B4: py_print_args (py-framefilter.c:706)
==17162== by 0x4791B4: py_print_frame(_object*, enum_flags<frame_filter_flag>, ext_lang_frame_args, ui_out*, int, htab*) (py-framefilter.c:960)
==17162== by 0x47A130: gdbpy_apply_frame_filter(extension_language_defn const*, frame_info*, enum_flags<frame_filter_flag>, ext_lang_frame_args, ui_out*, int, int) (py-framefilter.c:1236)
==17162== by 0x369C39: apply_ext_lang_frame_filter(frame_info*, enum_flags<frame_filter_flag>, ext_lang_frame_args, ui_out*, int, int) (extension.c:563)
==17162== by 0x4EC9C9: backtrace_command_1 (stack.c:2031)
==17162== by 0x4EC9C9: backtrace_command(char const*, int) (stack.c:2183)
...
Most of the leaks in python tests are due to the fact that many
PyObject xxxxx_dealloc functions are missing the line to free self
or obj such as:
Py_TYPE (self)->tp_free (self);
or
Py_TYPE (obj)->tp_free (obj);
With this patch, the number of python tests leaking decreases from 52 to 12.
gdb/ChangeLog
2019-11-18 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* python/py-block.c (blpy_dealloc): Call tp_free.
(blpy_block_syms_dealloc): Likewise.
* python/py-finishbreakpoint.c (bpfinishpy_dealloc): Likewise.
* python/py-inferior.c (infpy_dealloc): Likewise.
* python/py-lazy-string.c (stpy_dealloc): Likewise.
* python/py-linetable.c (ltpy_iterator_dealloc): Likewise.
* python/py-symbol.c (sympy_dealloc): Likewise.
* python/py-symtab.c (stpy_dealloc): Likewise.
* python/py-type.c (typy_iterator_dealloc): Likewise.
|
|
valgrind reports a leak when a breakpoint is created then deleted:
==1313== 40 bytes in 1 blocks are definitely lost in loss record 1,115 of 8,596
==1313== at 0x4835753: malloc (vg_replace_malloc.c:307)
==1313== by 0x6E05BC: _PyObject_New (object.c:255)
==1313== by 0x470E4B: gdbpy_breakpoint_created(breakpoint*) (py-breakpoint.c:1023)
==1313== by 0x2946D9: operator() (std_function.h:687)
==1313== by 0x2946D9: notify (observable.h:106)
==1313== by 0x2946D9: install_breakpoint(int, std::unique_ptr<breakpoint, std::default_delete<breakpoint> >&&, int) (breakpoint.c:8136)
==1313== by 0x295BCA: create_breakpoint_sal (breakpoint.c:8878)
==1313== by 0x295BCA: create_breakpoints_sal (breakpoint.c:8919)
==1313== by 0x295BCA: create_breakpoints_sal_default (breakpoint.c:13671)
...
The leak is due to a superfluous Py_INCREF when the python object
is allocated inside gdbpy_breakpoint_created, when the python object
is allocated locally: this object has already a refcount of 1, and
the only reference is the reference from the C breakpoint object.
The Py_INCREF is however needed when the python object was created from
python: the python object was stored in bppy_pending_object, and
gdbpy_breakpoint_created creates a new reference to this object.
Solve the leak by calling 'Py_INCREF (newbp);' only in the bppy_pending_object
case.
Regression tested on debian/amd64 natively and under valgrind on centos/amd64.
Before the patch, 795 tests have a definite leak.
After the patch, 197 have a definite leak.
Thanks to Tom, that helped on irc with the python refcount logic.
gdb/ChangeLog
2019-11-14 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* python/py-finishbreakpoint.c (gdbpy_breakpoint_created):
only call Py_INCREF (newbp) in the bppy_pending_object case.
|
|
If gdb.lookup_static_symbol is going to return a single symbol then it
makes sense (I think) for it to return a context sensitive choice of
symbol, that is the global static symbol that would be visible to the
program at that point.
However, if the user of the python API wants to instead get a
consistent set of global static symbols, no matter where they stop,
then they have to instead consider all global static symbols with a
given name - there could be many. That is what this new API function
offers, it returns a list (possibly empty) of all global static
symbols matching a given name (and optionally a given symbol domain).
gdb/ChangeLog:
* python/py-symbol.c (gdbpy_lookup_static_symbols): New
function.
* python/python-internal.h (gdbpy_lookup_static_symbols):
Declare new function.
* python/python.c (python_GdbMethods): Add
gdb.lookup_static_symbols method.
* NEWS: Mention gdb.lookup_static_symbols.
gdb/testsuite/ChangeLog:
* gdb.python/py-symbol.exp: Add test for
gdb.lookup_static_symbols.
gdb/doc/ChangeLog:
* python.texi (Symbols In Python): Add documentation for
gdb.lookup_static_symbols.
Change-Id: I1153b0ae5bcbc43b3dcf139043c7a48bf791e1a3
|
|
When using gdb.lookup_static_symbol I think that GDB should find
static symbols (global symbol with static linkage) from the current
object file ahead of static symbols from other object files.
This means that if we have two source files f1.c and f2.c, and both
files contains 'static int foo;', then when we are stopped in f1.c a
call to 'gdb.lookup_static_symbol ("foo")' will find f1.c::foo, and if
we are stopped in f2.c we would find 'f2.c::foo'.
Given that gdb.lookup_static_symbol always returns a single symbol,
but there can be multiple static symbols with the same name GDB is
always making a choice about which symbols to return. I think that it
makes sense for the choice GDB makes in this case to match what a user
would get on the command line if they asked to 'print foo'.
gdb/testsuite/ChangeLog:
* gdb.python/py-symbol.c: Declare and call function from new
py-symbol-2.c file.
* gdb.python/py-symbol.exp: Compile both source files, and add new
tests for gdb.lookup_static_symbol.
* gdb.python/py-symbol-2.c: New file.
gdb/doc/ChangeLog:
* python.texi (Symbols In Python): Extend documentation for
gdb.lookup_static_symbol.
gdb/ChangeLog:
* python/py-symbol.c (gdbpy_lookup_static_symbol): Lookup in
static block of current object file first. Also fix typo in
header comment.
Change-Id: Ie55dbeb8806f35577b46015deecde27a0ca2ab64
|
|
This changes command_line_input to return a "const char *", which is
appropriate because the memory is owned by command_line_input. Then
it fixes up the users.
I looked at making command_line_input transfer ownership to its caller
instead, but this is complicated due to the way read_next_line is
called, so I decided against it.
Tested by rebuilding.
gdb/ChangeLog
2019-11-08 Tom Tromey <tromey@adacore.com>
* top.c (read_command_file): Update.
(command_line_input): Make return type const.
* python/py-gdb-readline.c: Update.
* linespec.c (decode_line_2): Update.
* defs.h (command_line_input): Make return type const.
* cli/cli-script.c (read_next_line): Make return type const.
* ada-lang.c (get_selections): Update.
Change-Id: I27e6c9477fd1005ab5b16e0d337e4c015b6e6248
|
|
The la_get_string member of struct language_defn was intended to
provide a way to fetch string data from a "string" object in a
language-dependent way. However, it turned out that this was never
needed, and was only ever implemented for C. This patch removes the
language hook entirely.
gdb/ChangeLog
2019-11-05 Tom Tromey <tom@tromey.com>
* rust-lang.c (rust_language_defn): Update.
* python/py-value.c (valpy_string): Call c_get_string.
* p-lang.c (pascal_language_defn): Update.
* opencl-lang.c (opencl_language_defn): Update.
* objc-lang.c (objc_language_defn): Update.
* m2-lang.c (m2_language_defn): Update.
* language.c (unknown_language_defn, auto_language_defn): Update.
(default_get_string): Remove.
* guile/scm-value.c (gdbscm_value_to_string): Use c_get_string.
* go-lang.c (go_language_defn): Update.
* f-lang.c (f_language_defn): Update.
* d-lang.c (d_language_defn): Update.
* c-lang.c (c_language_defn, cplus_language_defn)
(asm_language_defn, minimal_language_defn): Update.
* ada-lang.c (ada_language_defn): Update.
* language.h (struct language_defn) <la_get_string>: Remove.
(LA_GET_STRING): Remove.
(default_get_string): Don't declare.
Change-Id: Ia97763dfe34dc8ecb46587f7a651f8af9be8fdbd
|
|
Fix typos in comments. NFC.
Tested on x86_64-linux.
gdb/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* aarch64-linux-tdep.c: Fix typos in comments.
* aarch64-tdep.c: Same.
* ada-lang.c: Same.
* amd64-nat.c: Same.
* arc-tdep.c: Same.
* arch/aarch64-insn.c: Same.
* block.c: Same.
* breakpoint.h: Same.
* btrace.h: Same.
* c-varobj.c: Same.
* cli/cli-decode.c: Same.
* cli/cli-script.c: Same.
* cli/cli-utils.h: Same.
* coff-pe-read.c: Same.
* coffread.c: Same.
* compile/compile-cplus-symbols.c: Same.
* compile/compile-object-run.c: Same.
* completer.c: Same.
* corelow.c: Same.
* cp-support.c: Same.
* demangle.c: Same.
* dwarf-index-write.c: Same.
* dwarf2-frame.c: Same.
* dwarf2-frame.h: Same.
* eval.c: Same.
* frame-base.h: Same.
* frame.h: Same.
* gdbcmd.h: Same.
* gdbtypes.h: Same.
* gnu-nat.c: Same.
* guile/scm-objfile.c: Same.
* i386-tdep.c: Same.
* i386-tdep.h: Same.
* infcall.c: Same.
* infcall.h: Same.
* linux-nat.c: Same.
* m68k-tdep.c: Same.
* macroexp.c: Same.
* memattr.c: Same.
* mi/mi-cmd-disas.c: Same.
* mi/mi-getopt.h: Same.
* mi/mi-main.c: Same.
* minsyms.c: Same.
* nat/aarch64-sve-linux-sigcontext.h: Same.
* objfiles.h: Same.
* ppc-linux-nat.c: Same.
* ppc-linux-tdep.c: Same.
* ppc-tdep.h: Same.
* progspace.h: Same.
* prologue-value.h: Same.
* python/py-evtregistry.c: Same.
* python/py-instruction.h: Same.
* record-btrace.c: Same.
* record-full.c: Same.
* remote.c: Same.
* rs6000-tdep.c: Same.
* ser-tcp.c: Same.
* sol-thread.c: Same.
* sparc-sol2-tdep.c: Same.
* sparc64-tdep.c: Same.
* stabsread.c: Same.
* symfile.c: Same.
* symtab.h: Same.
* target.c: Same.
* tracepoint.c: Same.
* tui/tui-data.h: Same.
* tui/tui-io.c: Same.
* tui/tui-win.c: Same.
* tui/tui.c: Same.
* unittests/rsp-low-selftests.c: Same.
* user-regs.h: Same.
* utils.c: Same.
* utils.h: Same.
* valarith.c: Same.
* valops.c: Same.
* valprint.c: Same.
* valprint.h: Same.
* value.c: Same.
* value.h: Same.
* varobj.c: Same.
* x86-nat.h: Same.
* xtensa-tdep.c: Same.
gdb/gdbserver/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* linux-aarch64-low.c: Fix typos in comments.
* linux-arm-low.c: Same.
* linux-low.c: Same.
* linux-ppc-low.c: Same.
* proc-service.c: Same.
* regcache.h: Same.
* server.c: Same.
* tracepoint.c: Same.
* win32-low.c: Same.
gdb/stubs/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* ia64vms-stub.c: Fix typos in comments.
* m32r-stub.c: Same.
* m68k-stub.c: Same.
* sh-stub.c: Same.
gdb/testsuite/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* gdb.base/bigcore.c: Fix typos in comments.
* gdb.base/ctf-ptype.c: Same.
* gdb.base/long_long.c: Same.
* gdb.dwarf2/dw2-op-out-param.S: Same.
* gdb.python/py-evthreads.c: Same.
* gdb.reverse/i387-stack-reverse.c: Same.
* gdb.trace/tfile.c: Same.
* lib/compiler.c: Same.
* lib/compiler.cc: Same.
Change-Id: I8573d84a577894270179ae30f46c48d806fc1beb
|
|
The documentation for Progspace.block_for_pc says:
Return the innermost gdb.Block containing the given pc value. If the
block cannot be found for the pc value specified, the function will
return None.
However, the implementation actually throws an error for invalid
addresses, like this:
(gdb) python print gdb.current_progspace ().block_for_pc (1)
Traceback (most recent call last):
File "<string>", line 1, in <module>
RuntimeError: Cannot locate object file for block.
Error while executing Python code.
(gdb)
This has been the behaviour since the command was first added (when
the documentation was still as above) in this commit:
commit f3e9a8177c41893858fce2bdf339dbe90b3a4ef5
Date: Wed Feb 24 21:18:28 2010 +0000
Since that commit the code in question has moved around, but the
important parts are largely unchanged. The function in question is
now in py-progspace.c:pspy_block_for_pc.
Examining the code shows that the real state is more complex than just
the function throws an error instead of returning None, instead the
real situation is:
1. If we can't find a compilation unit for the $pc value then we
throw an error, but
2. If we can find a compilation unit, but can't find a block within
the compilation unit for the $pc then return None.
I suspect for most users of the Python API this distinction is
irrelevant, and I propose that we standardise on one single failure
mechanism.
Given the function can currently return None in some cases, and is
documented to return None on error, I propose we make that the case
for all error paths, which is what this patch does.
As the Progspace.block_for_pc method is currently untested, I've added
some basic tests including for a call with an invalid $pc.
This is potentially an API breaking change, though an undocumented
part of the API. Also, users should have been checking and handling a
None return value anyway, so my hope is that this shouldn't be too
disruptive.
gdb/ChangeLog:
* python/py-progspace.c (pspy_block_for_pc): Return None for all
error paths.
gdb/testsuite/ChangeLog:
* gdb.python/py-progspace.exp: Add tests for the
Progspace.block_for_pc method.
Change-Id: I9cea8d2132902bcad0013d1fd39080dd5423cc57
|
|
Removes vec.c and vec.h from the source tree, and remove all the
remaining includes of vec.h. There should be no user visible changes
after this commit.
I did have a few issues rebuilding GDB after applying this patch due
to cached dependencies, I found that running this command in the build
directory resolved my build issues without requiring a 'make clean':
rm -fr gdb/gdbserver/gdbsupport/.deps/
gdb/ChangeLog:
* Makefile.in: Remove references to vec.h and vec.c.
* aarch64-tdep.c: No longer include vec.h.
* ada-lang.c: Likewise.
* ada-lang.h: Likewise.
* arm-tdep.c: Likewise.
* ax.h: Likewise.
* breakpoint.h: Likewise.
* charset.c: Likewise.
* cp-support.h: Likewise.
* dtrace-probe.c: Likewise.
* dwarf2read.c: Likewise.
* extension.h: Likewise.
* gdb_bfd.c: Likewise.
* gdbsupport/gdb_vecs.h: Likewise.
* gdbsupport/vec.c: Remove.
* gdbsupport/vec.h: Remove.
* gdbthread.h: Likewise.
* guile/scm-type.c: Likewise.
* inline-frame.c: Likewise.
* machoread.c: Likewise.
* memattr.c: Likewise.
* memrange.h: Likewise.
* namespace.h: Likewise.
* nat/linux-btrace.h: Likewise.
* osdata.c: Likewise.
* parser-defs.h: Likewise.
* progspace.h: Likewise.
* python/py-type.c: Likewise.
* record-btrace.c: Likewise.
* rust-exp.y: Likewise.
* solib-target.c: Likewise.
* stap-probe.c: Likewise.
* target-descriptions.c: Likewise.
* target-memory.c: Likewise.
* target.h: Likewise.
* varobj.c: Likewise.
* varobj.h: Likewise.
* xml-support.h: Likewise.
gdb/gdbserver/ChangeLog:
* Makefile.in: Remove references to vec.c.
Change-Id: I0c91d7170bf1b5e992a387fcd9fe4f2abe343bb5
|
|
This allows callers to pass in capturing lambdas. Also changes the return
type to bool.
gdb/ChangeLog:
2019-10-15 Christian Biesinger <cbiesinger@google.com>
* breakpoint.c (iterate_over_breakpoints): Change function pointer
to a gdb::function_view and return value to bool.
* breakpoint.h (iterate_over_breakpoints): Likewise.
* dummy-frame.c (pop_dummy_frame_bpt): Update.
(pop_dummy_frame): Update.
* guile/scm-breakpoint.c (bpscm_build_bp_list): Update.
(gdbscm_breakpoints): Update.
* python/py-breakpoint.c (build_bp_list): Update.
(gdbpy_breakpoints): Update.
* python/py-finishbreakpoint.c (bpfinishpy_detect_out_scope_cb):
Update.
(bpfinishpy_handle_stop): Update.
(bpfinishpy_handle_exit): Update.
* solib-svr4.c (svr4_update_solib_event_breakpoint): Update.
(svr4_update_solib_event_breakpoints): Update.
Change-Id: Ia9de4deecae562a70a40f5cd49f5a74d64570251
|
|
I'm seeing this failure:
...
(gdb) print /x $bnd0 = {0x10, 0x20}^M
$23 = {lbound = 0x10, ubound = 0x20}^M
(gdb) FAIL: gdb.arch/i386-mpx.exp: verify size for bnd0
...
The test expects a pretty printer to be actived printing 'size 17':
...
set test_string ".*\\\: size 17.*"
gdb_test "print /x \$bnd0 = {0x10, 0x20}" "$test_string" "verify size for bnd0"
...
but that doesn't happen.
The pretty printer is for the type of the $bnd0 register, which is created
here in i386_bnd_type:
...
t = arch_composite_type (gdbarch,
"__gdb_builtin_type_bound128", TYPE_CODE_STRUCT);
append_composite_type_field (t, "lbound", bt->builtin_data_ptr);
append_composite_type_field (t, "ubound", bt->builtin_data_ptr);
TYPE_NAME (t) = "builtin_type_bound128";
...
And the pretty-printer is registered here in
gdb/python/lib/gdb/printer/bound_registers.py:
...
gdb.printing.add_builtin_pretty_printer ('mpx_bound128',
'^__gdb_builtin_type_bound128',
MpxBound128Printer)
...
Fix the pretty printer by changing the regexp argument of
add_builtin_pretty_printer to match "builtin_type_bound128", the TYPE_NAME.
Tested on x86_64-linux.
gdb/ChangeLog:
2019-10-09 Tom de Vries <tdevries@suse.de>
* python/lib/gdb/printer/bound_registers.py: Use
'^builtin_type_bound128' as regexp argument for
add_builtin_pretty_printer.
|
|
This introduces a new "metadata" style and changes many places in gdb
to use it. The idea here is to let the user distinguish gdb output
from output that (conceptually at least) comes directly from the
inferior. The newly-styled category includes text that gdb
traditionally surrounds in "<...>", like "<unavailable>".
I only added a single test for this. In many cases this output is
difficult to test. Also, while developing this errors in the
implementation of the new printf formats showed up as regressions.
gdb/ChangeLog
2019-10-01 Tom Tromey <tom@tromey.com>
* p-lang.c (pascal_printstr): Use metadata style.
* value.c (show_convenience): Use metadata style.
* valprint.c (valprint_check_validity, val_print_optimized_out)
(val_print_not_saved, val_print_unavailable)
(val_print_invalid_address, generic_val_print, val_print)
(value_check_printable, val_print_array_elements): Use metadata
style.
* ui-out.h (class ui_out) <field_fmt>: New overload.
<do_field_fmt>: Add style parameter.
* ui-out.c (ui_out::field_fmt): New overload.
* typeprint.c (type_print_unknown_return_type)
(val_print_not_allocated, val_print_not_associated): Use metadata
style.
* tui/tui-out.h (class tui_ui_out) <do_field_fmt>: Add style
parameter.
* tui/tui-out.c (tui_ui_out::do_field_fmt): Update.
* tracepoint.c (tvariables_info_1): Use metadata style.
* stack.c (print_frame_arg, print_frame_info, print_frame)
(info_frame_command_core): Use metadata style.
* skip.c (info_skip_command): Use metadata style.
* rust-lang.c (rust_print_enum): Use metadata style.
* python/py-prettyprint.c (print_stack_unless_memory_error): Use
metadata style.
* python/py-framefilter.c (py_print_single_arg): Use metadata
style.
* printcmd.c (do_one_display, print_variable_and_value): Use
metadata style.
* p-valprint.c (pascal_val_print)
(pascal_object_print_value_fields): Use metadata style.
* p-typeprint.c (pascal_type_print_base): Use metadata style.
* mi/mi-out.h (class mi_ui_out) <do_field_fmt>: Add style
parameter.
* mi/mi-out.c (mi_ui_out::do_field_fmt): Update.
* m2-valprint.c (m2_print_long_set): Use metadata style.
* m2-typeprint.c (m2_print_type): Use metadata style.
* infcmd.c (print_return_value_1): Use metadata style.
* gnu-v3-abi.c (print_one_vtable): Use metadata style.
* f-valprint.c (info_common_command_for_block): Use metadata
style.
* f-typeprint.c (f_type_print_base): Use metadata style.
* expprint.c (print_subexp_standard): Use metadata style.
* cp-valprint.c (cp_print_value_fields): Use metadata style.
* cli/cli-style.h (class cli_style_option): Add constructor.
(metadata_style): Declare.
* cli/cli-style.c (metadata_style): New global.
(_initialize_cli_style): Register metadata style.
* cli-out.h (class cli_ui_out) <do_field_fmt>: Add style
parameter.
* cli-out.c (cli_ui_out::do_field_fmt): Update.
* c-typeprint.c (c_type_print_base_struct_union)
(c_type_print_base_1): Use metadata style.
* breakpoint.c (watchpoint_value_print)
(print_one_breakpoint_location): Use metadata style.
* break-catch-syscall.c (print_one_catch_syscall): Use metadata
style.
* break-catch-sig.c (signal_catchpoint_print_one): Use metadata
style.
* ada-valprint.c (val_print_packed_array_elements, printstr)
(print_field_values, ada_val_print_ref, ada_val_print): Use
metadata style.
* ada-typeprint.c (print_array_type, ada_print_type): Use metadata
style.
* ada-tasks.c (print_ada_task_info, info_task): Use metadata
style.
* ada-lang.c (user_select_syms): Use metadata style.
gdb/testsuite/ChangeLog
2019-10-01 Tom Tromey <tom@tromey.com>
* lib/gdb-utils.exp (style): Handle "metadata" argument.
* gdb.base/style.exp: Add metadata style test.
|
|
This removes the ui_out_style_kind enum, in favor of simply using
ui_file_style references. This simplifies the code somewhat.
gdb/ChangeLog
2019-10-01 Tom Tromey <tom@tromey.com>
* ui-out.h (enum class ui_out_style_kind): Remove.
(class ui_out) <field_string, field_stsream, do_field_string>:
Change type of "style".
* ui-out.c (ui_out::field_core_addr, ui_out::field_stream)
(ui_out::field_string): Update.
* tui/tui-out.h (class tui_ui_out) <do_field_string>: Change type
of "style".
* tui/tui-out.c (tui_ui_out::do_field_string): Update.
* tracepoint.c (print_one_static_tracepoint_marker): Update.
* stack.c (print_frame_arg, print_frame_info, print_frame):
Update.
* source.c (print_source_lines_base): Update.
* solib.c (info_sharedlibrary_command): Update.
* skip.c (info_skip_command): Update.
* record-btrace.c (btrace_call_history_src_line)
(btrace_call_history): Update.
* python/py-framefilter.c (py_print_frame): Update.
* mi/mi-out.h (class mi_ui_out) <do_field_string>: Change type of
"style".
* mi/mi-out.c (mi_ui_out::do_table_header)
(mi_ui_out::do_field_signed, mi_ui_out::do_field_unsigned)
(mi_ui_out::do_field_string): Update.
* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn):
Update.
* cli-out.h (class cli_ui_out) <do_field_string>: Change type of
"style".
* cli-out.c (cli_ui_out::do_table_header)
(cli_ui_out::do_field_signed, cli_ui_out::do_field_unsigned)
(cli_ui_out::do_field_skip, cli_ui_out::do_field_string)
(cli_ui_out::do_field_fmt): Update.
* breakpoint.c (print_breakpoint_location): Update.
(update_static_tracepoint): Update.
|
|
dwarf2read.c will create stub types for Ada "Taft Amendment" types.
These stub types can currently be exposed to Python code, where they
show up as TYPE_CODE_VOID types (but that, mysteriously, can sometimes
be used in other ways).
While it's possible to work with such types by using strip_typedefs,
this seemed unpleasant to me. This patch takes another approach
instead, which is to try not to expose stub types to Python users.
gdb/ChangeLog
2019-09-26 Tom Tromey <tromey@adacore.com>
* python/py-type.c (type_to_type_object): Call check_typedef
for stub types.
gdb/testsuite/ChangeLog
2019-09-26 Tom Tromey <tromey@adacore.com>
* gdb.ada/py_taft.exp: New file.
* gdb.ada/py_taft/main.adb: New file.
* gdb.ada/py_taft/pkg.adb: New file.
* gdb.ada/py_taft/pkg.ads: New file.
|
|
I noticed that make_hex_string does essentially the same thing as
bin2hex, and furthermore is only called in a single spot. This patch
removes make_hex_string.
Tested by the builtbot.
gdb/ChangeLog
2019-09-25 Tom Tromey <tom@tromey.com>
* python/py-objfile.c (objfpy_get_build_id): Use bin2hex.
* utils.h (make_hex_string): Don't declare.
* utils.c (make_hex_string): Remove.
|
|
This is for add_setshow_boolean_cmd as well as the gdb::option interface.
gdb/ChangeLog:
2019-09-17 Christian Biesinger <cbiesinger@google.com>
* ada-lang.c (ada_ignore_descriptive_types_p): Change to bool.
(print_signatures): Likewise.
(trust_pad_over_xvs): Likewise.
* arch/aarch64-insn.c (aarch64_debug): Likewise.
* arch/aarch64-insn.h (aarch64_debug): Likewise.
* arm-linux-nat.c (arm_apcs_32): Likewise.
* arm-linux-tdep.c (arm_apcs_32): Likewise.
* arm-nbsd-nat.c (arm_apcs_32): Likewise.
* arm-tdep.c (arm_debug): Likewise.
(arm_apcs_32): Likewise.
* auto-load.c (debug_auto_load): Likewise.
(auto_load_gdb_scripts): Likewise.
(global_auto_load): Likewise.
(auto_load_local_gdbinit): Likewise.
(auto_load_local_gdbinit_loaded): Likewise.
* auto-load.h (global_auto_load): Likewise.
(auto_load_local_gdbinit): Likewise.
(auto_load_local_gdbinit_loaded): Likewise.
* breakpoint.c (disconnected_dprintf): Likewise.
(breakpoint_proceeded): Likewise.
(automatic_hardware_breakpoints): Likewise.
(always_inserted_mode): Likewise.
(target_exact_watchpoints): Likewise.
(_initialize_breakpoint): Update.
* breakpoint.h (target_exact_watchpoints): Change to bool.
* btrace.c (maint_btrace_pt_skip_pad): Likewise.
* cli/cli-cmds.c (trace_commands): Likewise.
* cli/cli-cmds.h (trace_commands): Likewise.
* cli/cli-decode.c (add_setshow_boolean_cmd): Change int* argument
to bool*.
* cli/cli-logging.c (logging_overwrite): Change to bool.
(logging_redirect): Likewise.
(debug_redirect): Likewise.
* cli/cli-option.h (option_def) <boolean>: Change return type to bool*.
(struct boolean_option_def) <get_var_address_cb_>: Change return type
to bool.
<boolean_option_def>: Update.
(struct flag_option_def): Change default type of Context to bool
from int.
<flag_option_def>: Change return type of var_address_cb_ to bool*.
* cli/cli-setshow.c (do_set_command): Cast to bool* instead of int*.
(get_setshow_command_value_string): Likewise.
* cli/cli-style.c (cli_styling): Change to bool.
(source_styling): Likewise.
* cli/cli-style.h (source_styling): Likewise.
(cli_styling): Likewise.
* cli/cli-utils.h (struct qcs_flags) <quiet, cont, silent>: Change
to bool.
* command.h (var_types): Update comment.
(add_setshow_boolean_cmd): Change int* var argument to bool*.
* compile/compile-cplus-types.c (debug_compile_cplus_types): Change to
bool.
(debug_compile_cplus_scopes): Likewise.
* compile/compile-internal.h (compile_debug): Likewise.
* compile/compile.c (compile_debug): Likewise.
(struct compile_options) <raw>: Likewise.
* cp-support.c (catch_demangler_crashes): Likewise.
* cris-tdep.c (usr_cmd_cris_version_valid): Likewise.
(usr_cmd_cris_dwarf2_cfi): Likewise.
* csky-tdep.c (csky_debug): Likewise.
* darwin-nat.c (enable_mach_exceptions): Likewise.
* dcache.c (dcache_enabled_p): Likewise.
* defs.h (info_verbose): Likewise.
* demangle.c (demangle): Likewise.
(asm_demangle): Likewise.
* dwarf-index-cache.c (debug_index_cache): Likewise.
* dwarf2-frame.c (dwarf2_frame_unwinders_enabled_p): Likewise.
* dwarf2-frame.h (dwarf2_frame_unwinders_enabled_p): Likewise.
* dwarf2read.c (check_physname): Likewise.
(use_deprecated_index_sections): Likewise.
(dwarf_always_disassemble): Likewise.
* eval.c (overload_resolution): Likewise.
* event-top.c (set_editing_cmd_var): Likewise.
(exec_done_display_p): Likewise.
* event-top.h (set_editing_cmd_var): Likewise.
(exec_done_display_p): Likewise.
* exec.c (write_files): Likewise.
* fbsd-nat.c (debug_fbsd_lwp): Likewise
(debug_fbsd_nat): Likewise.
* frame.h (struct frame_print_options) <print_raw_frame_arguments>:
Likewise.
(struct set_backtrace_options) <backtrace_past_main>: Likewise.
<backtrace_past_entry> Likewise.
* gdb-demangle.h (demangle): Likewise.
(asm_demangle): Likewise.
* gdb_bfd.c (bfd_sharing): Likewise.
* gdbcore.h (write_files): Likewise.
* gdbsupport/common-debug.c (show_debug_regs): Likewise.
* gdbsupport/common-debug.h (show_debug_regs): Likewise.
* gdbthread.h (print_thread_events): Likewise.
* gdbtypes.c (opaque_type_resolution): Likewise.
(strict_type_checking): Likewise.
* gnu-nat.c (gnu_debug_flag): Likewise.
* guile/scm-auto-load.c (auto_load_guile_scripts): Likewise.
* guile/scm-param.c (pascm_variable): Add boolval.
(add_setshow_generic): Update.
(pascm_param_value): Update.
(pascm_set_param_value_x): Update.
* hppa-tdep.c (hppa_debug): Change to bool..
* infcall.c (may_call_functions_p): Likewise.
(coerce_float_to_double_p): Likewise.
(unwind_on_signal_p): Likewise.
(unwind_on_terminating_exception_p): Likewise.
* infcmd.c (startup_with_shell): Likewise.
* inferior.c (print_inferior_events): Likewise.
* inferior.h (startup_with_shell): Likewise.
(print_inferior_events): Likewise.
* infrun.c (step_stop_if_no_debug): Likewise.
(detach_fork): Likewise.
(debug_displaced): Likewise.
(disable_randomization): Likewise.
(non_stop): Likewise.
(non_stop_1): Likewise.
(observer_mode): Likewise.
(observer_mode_1): Likewise.
(set_observer_mode): Update.
(sched_multi): Change to bool.
* infrun.h (debug_displaced): Likewise.
(sched_multi): Likewise.
(step_stop_if_no_debug): Likewise.
(non_stop): Likewise.
(disable_randomization): Likewise.
* linux-tdep.c (use_coredump_filter): Likewise.
(dump_excluded_mappings): Likewise.
* linux-thread-db.c (auto_load_thread_db): Likewise.
(check_thread_db_on_load): Likewise.
* main.c (captured_main_1): Update.
* maint-test-options.c (struct test_options_opts) <flag_opt, xx1_opt,
xx2_opt, boolean_opt>: Change to bool.
* maint-test-settings.c (maintenance_test_settings_boolean): Likewise.
* maint.c (maintenance_profile_p): Likewise.
(per_command_time): Likewise.
(per_command_space): Likewise.
(per_command_symtab): Likewise.
* memattr.c (inaccessible_by_default): Likewise.
* mi/mi-main.c (mi_async): Likewise.
(mi_async_1): Likewise.
* mips-tdep.c (mips64_transfers_32bit_regs_p): Likewise.
* nat/fork-inferior.h (startup_with_shell): Likewise.
* nat/linux-namespaces.c (debug_linux_namespaces): Likewise.
* nat/linux-namespaces.h (debug_linux_namespaces): Likewise.
* nios2-tdep.c (nios2_debug): Likewise.
* or1k-tdep.c (or1k_debug): Likewise.
* parse.c (parser_debug): Likewise.
* parser-defs.h (parser_debug): Likewise.
* printcmd.c (print_symbol_filename): Likewise.
* proc-api.c (procfs_trace): Likewise.
* python/py-auto-load.c (auto_load_python_scripts): Likewise.
* python/py-param.c (union parmpy_variable): Add "bool boolval" field.
(set_parameter_value): Update.
(add_setshow_generic): Update.
* python/py-value.c (copy_py_bool_obj): Change argument from int*
to bool*.
* python/python.c (gdbpy_parameter_value): Cast to bool* instead of
int*.
* ravenscar-thread.c (ravenscar_task_support): Change to bool.
* record-btrace.c (record_btrace_target::store_registers): Update.
* record-full.c (record_full_memory_query): Change to bool.
(record_full_stop_at_limit): Likewise.
* record-full.h (record_full_memory_query): Likewise.
* remote-notif.c (notif_debug): Likewise.
* remote-notif.h (notif_debug): Likewise.
* remote.c (use_range_stepping): Likewise.
(interrupt_on_connect): Likewise.
(remote_break): Likewise.
* ser-tcp.c (tcp_auto_retry): Likewise.
* ser-unix.c (serial_hwflow): Likewise.
* skip.c (debug_skip): Likewise.
* solib-aix.c (solib_aix_debug): Likewise.
* spu-tdep.c (spu_stop_on_load_p): Likewise.
(spu_auto_flush_cache_p): Likewise.
* stack.c (struct backtrace_cmd_options) <full, no_filters, hide>:
Likewise.
(struct info_print_options) <quiet>: Likewise.
* symfile-debug.c (debug_symfile): Likewise.
* symfile.c (auto_solib_add): Likewise.
(separate_debug_file_debug): Likewise.
* symfile.h (auto_solib_add): Likewise.
(separate_debug_file_debug): Likewise.
* symtab.c (basenames_may_differ): Likewise.
(struct filename_partial_match_opts) <dirname, basename>: Likewise.
(struct info_print_options) <quiet, exclude_minsyms>: Likewise.
(struct info_types_options) <quiet>: Likewise.
* symtab.h (demangle): Likewise.
(basenames_may_differ): Likewise.
* target-dcache.c (stack_cache_enabled_1): Likewise.
(code_cache_enabled_1): Likewise.
* target.c (trust_readonly): Likewise.
(may_write_registers): Likewise.
(may_write_memory): Likewise.
(may_insert_breakpoints): Likewise.
(may_insert_tracepoints): Likewise.
(may_insert_fast_tracepoints): Likewise.
(may_stop): Likewise.
(auto_connect_native_target): Likewise.
(target_stop_and_wait): Update.
(target_async_permitted): Change to bool.
(target_async_permitted_1): Likewise.
(may_write_registers_1): Likewise.
(may_write_memory_1): Likewise.
(may_insert_breakpoints_1): Likewise.
(may_insert_tracepoints_1): Likewise.
(may_insert_fast_tracepoints_1): Likewise.
(may_stop_1): Likewise.
* target.h (target_async_permitted): Likewise.
(may_write_registers): Likewise.
(may_write_memory): Likewise.
(may_insert_breakpoints): Likewise.
(may_insert_tracepoints): Likewise.
(may_insert_fast_tracepoints): Likewise.
(may_stop): Likewise.
* thread.c (struct info_threads_opts) <show_global_ids>: Likewise.
(make_thread_apply_all_options_def_group): Change argument from int*
to bool*.
(thread_apply_all_command): Update.
(print_thread_events): Change to bool.
* top.c (confirm): Likewise.
(command_editing_p): Likewise.
(history_expansion_p): Likewise.
(write_history_p): Likewise.
(info_verbose): Likewise.
* top.h (confirm): Likewise.
(history_expansion_p): Likewise.
* tracepoint.c (disconnected_tracing): Likewise.
(circular_trace_buffer): Likewise.
* typeprint.c (print_methods): Likewise.
(print_typedefs): Likewise.
* utils.c (debug_timestamp): Likewise.
(sevenbit_strings): Likewise.
(pagination_enabled): Likewise.
* utils.h (sevenbit_strings): Likewise.
(pagination_enabled): Likewise.
* valops.c (overload_resolution): Likewise.
* valprint.h (struct value_print_options) <prettyformat_arrays,
prettyformat_structs, vtblprint, unionprint, addressprint, objectprint,
stop_print_at_null, print_array_indexes, deref_ref, static_field_print,
pascal_static_field_print, raw, summary, symbol_print, finish_print>:
Likewise.
* windows-nat.c (new_console): Likewise.
(cygwin_exceptions): Likewise.
(new_group): Likewise.
(debug_exec): Likewise.
(debug_events): Likewise.
(debug_memory): Likewise.
(debug_exceptions): Likewise.
(useshell): Likewise.
* windows-tdep.c (maint_display_all_tib): Likewise.
* xml-support.c (debug_xml): Likewise.
|
|
This simplifies memory management. I've also changed some global variables
to std::string accordingly (which store the result of these functions),
but not all because some are used with add_setshow_optional_filename_cmd
which requires a char*.
gdb/ChangeLog:
2019-09-11 Christian Biesinger <cbiesinger@google.com>
* auto-load.c (auto_load_expand_dir_vars): Update.
* defs.h (gdb_datadir): Change to std::string.
(python_libdir): Likewise.
(relocate_gdb_directory): Change return type to std::string.
* guile/guile.c (gdbscm_data_directory): Update.
(initialize_scheme_side): Update.
* jit.c (jit_reader_dir): Change to std::string.
(jit_reader_load_command): Update.
* main.c (gdb_datadir): Change to std::string.
(python_libdir): Likewise.
(set_gdb_data_directory): Update.
(relocate_path): Change to return std::string.
(relocate_gdb_directory): Change to return std::string.
(relocate_gdbinit_path_maybe_in_datadir): Update.
(captured_main_1): Update.
* python/python.c (do_start_initialization): Update.
* top.c (show_gdb_datadir): Update.
* xml-syscall.c (xml_init_syscalls_info): Update.
(init_syscalls_info): Update.
|
|
Valgrind reports the below leak.
Make the variable progname_copy static, so that Valgrind continues
to find a pointer to the memory given to Python.
Note that the comment in do_start_initialization and the Python documentation
indicates that the progname given to Py_SetProgramName cannot be freed.
However, in Python 3.7.4, Py_SetProgramName does:
void
Py_SetProgramName(const wchar_t *program_name)
{
...
PyMem_RawFree(_Py_path_config.program_name);
_Py_path_config.program_name = _PyMem_RawWcsdup(program_name);
So, it looks like 3.7.4 Python duplicates its argument, which explains
the leak found by Valgrind.
It looks better to respect the doc and not have GDB freeing the string
given to Py_SetProgramName, and avoid the leak error by declaring
the progname_copy static.
This will work with Python versions that really use this string without
duplicating it, and avoids a leak report for Python version that duplicates
it.
==4023== 200 bytes in 1 blocks are definitely lost in loss record 4,545 of 7,116^M
==4023== at 0x4C29F33: malloc (vg_replace_malloc.c:307)^M
==4023== by 0x446D27: xmalloc (alloc.c:60)^M
==4023== by 0x657C77: do_start_initialization (python.c:1610)^M
==4023== by 0x657C77: _initialize_python() (python.c:1823)^M
==4023== by 0x75FE24: initialize_all_files() (init.c:231)^M
==4023== by 0x708A94: gdb_init(char*) (top.c:2242)^M
==4023== by 0x5E7460: captured_main_1 (main.c:857)^M
==4023== by 0x5E7460: captured_main (main.c:1161)^M
==4023== by 0x5E7460: gdb_main(captured_main_args*) (main.c:1186)^M
==4023== by 0x4122D4: main (gdb.c:32)^M
gdb/ChangeLog
2019-09-09 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* python/python.c (do_start_initialization): Make progname_copy static,
to avoid a leak report.
|
|
The 'info variables', its alias 'whereis', and 'info functions' all
include non-debug symbols in the output by default. The list of
non-debug symbols can sometimes be quite long, resulting in the
debug symbol based results being scrolled off the screen.
This commit adds a '-n' flag to all of the commands listed above that
excludes the non-debug symbols from the results, leaving just the
debug symbol based results.
gdb/ChangeLog:
* cli/cli-utils.c (info_print_options_defs): Delete.
(make_info_print_options_def_group): Delete.
(extract_info_print_options): Delete.
(info_print_command_completer): Delete.
(info_print_args_help): Add extra parameter, and optionally
include text about -n flag.
* cli/cli-utils.h (struct info_print_options): Delete.
(extract_info_print_options): Delete declaration.
(info_print_command_completer): Delete declaration.
(info_print_args_help): Add extra parameter, extend header
comment.
* python/python.c (gdbpy_rbreak): Pass additional parameter to
search_symbols.
* stack.c (struct info_print_options): New type.
(info_print_options_defs): New file scoped variable.
(make_info_print_options_def_group): New static function.
(info_print_command_completer): New static function.
(info_locals_command): Update to use new local functions.
(info_args_command): Likewise.
(_initialize_stack): Add extra parameter to calls to
info_print_args_help.
* symtab.c (search_symbols): Add extra parameter, use this to
possibly excluse non-debug symbols.
(symtab_symbol_info): Add extra parameter, which is passed on to
search_symbols.
(struct info_print_options): New type.
(info_print_options_defs): New file scoped variable.
(make_info_print_options_def_group): New static function.
(info_print_command_completer): New static function.
(info_variables_command): Update to use local functions, and pass
extra parameter through to symtab_symbol_info.
(info_functions_command): Likewise.
(info_types_command): Pass additional argument through to
symtab_symbol_info.
(rbreak_command): Pass extra argument to search_symbols.
(_initialize_symtab): Add extra arguments for calls to
info_print_args_help, and update help text for 'info variables',
'whereis', and 'info functions' commands.
* symtab.h (search_symbols): Add extra argument to declaration.
* NEWS: Mention new flags.
gdb/doc/ChangeLog:
* gdb.texinfo (Symbols): Add information about the -n flag to
"info variables" and "info functions".
gdb/testsuite/ChangeLog:
* gdb.base/info-fun.exp: Extend to test the -n flag for 'info
functions'. Reindent as needed.
* gdb.base/info-var-f1.c: New file.
* gdb.base/info-var-f2.c: New file.
* gdb.base/info-var.exp: New file.
* gdb.base/info-var.h: New file.
|
|
PyFile_FromString and PyFile_AsFile have been removed in Python 3.
There is no obvious replacement that works here, and we can't just
pass our FILE* to a DLL in Windows because it may use a different
C runtime.
So we just call a Python function which reads and executes file
contents. Care must be taken to execute it in the context of
__main__.
Tested by inverting the ifdef and running the testsuite on Debian
Linux (even without the patch, I failed at running the testsuite
on Windows). I did test with both Python 2 and 3.
gdb/ChangeLog:
2019-08-22 Christian Biesinger <cbiesinger@google.com>
* python/lib/gdb/__init__.py (_execute_file): New function.
* python/python.c (python_run_simple_file): Call gdb._execute_file
on Windows.
|
|
value_has_field had a mis-indented line. This fixes it.
gdb/ChangeLog
2019-08-19 Tom Tromey <tromey@adacore.com>
* python/py-value.c (value_has_field): Fix indentation.
|
|
I could not tell if GdbSetPythonDirectory is internal or not because
I could not find any references to it, so I left it as-is.
Tested by running the testsuite on gdb.python/*.exp; everything still
passes.
2019-08-15 Christian Biesinger <cbiesinger@google.com>
* python/lib/gdb/__init__.py (GdbOutputFile): Rename to have a
leading underscore.
(GdbOutputErrorFile): Likewise.
(global scope): Adjust constructor calls to GdbOutput{,Error}File
accordingly.
(execute_unwinders): Rename to have a leading underscore.
(auto_load_packages): Likewise.
(global scope): Adjust call to auto_load_packages accordingly.
(GdbSetPythonDirectory): Likewise.
* python/py-unwind.c (pyuw_sniffer): Call _execute_unwinders
instead of execute_unwinders.
gdb/testsuite/ChangeLog:
2019-08-15 Christian Biesinger <cbiesinger@google.com>
* gdb.python/python.exp: Expect a leading underscore on
GdbOutput{,Error}File.
|
|
This changes struct frame_arg to be self-managing and then fixes the
various users.
Tested by the buildbot.
gdb/ChangeLog
2019-08-07 Tom Tromey <tromey@adacore.com>
* stack.c (print_frame_arg, read_frame_local, read_frame_arg)
(print_frame_args): Update.
* python/py-framefilter.c (py_print_single_arg, enumerate_args):
Update.
* mi/mi-cmd-stack.c (list_arg_or_local): Update.
* frame.h (struct frame_arg): Add initializers.
<error>: Now a unique_xmalloc_ptr.
|
|
Armv8.3-a Pointer Authentication causes the function return address to be
obfuscated on entry to some functions. GDB must unmask the link register in
order to produce a backtrace.
The following patch adds markers of [PAC] to the bracktrace, to indicate
which addresses needed unmasking. This includes the backtrace when using MI.
For example, consider the following backtrace:
(gdb) bt
0 0x0000000000400490 in puts@plt ()
1 0x00000000004005dc in foo ("hello") at cbreak-lib.c:6
2 0x0000000000400604 [PAC] in bar () at cbreak-lib.c:12
3 0x0000000000400620 [PAC] in main2 () at cbreak.c:17
4 0x00000000004005b4 in main () at cbreak-3.c:10
The functions in cbreak-lib use pointer auth, which masks the return address
to the previous function, causing the addresses of bar (in the library) and main2
(in the main binary) to require unmasking in order to unwind the backtrace.
An extra bool is added alongside the prev_pc in the frame structure. At the
point at which the link register is unmasked, the AArch64 port calls into frame
to sets the bool. This is the most efficient way of doing it.
The marker is also added to the python frame printer, which is always printed if
set. The marker is not explicitly exposed to the python code.
I expect this will potentially cause issues with some tests in the testsuite
when Armv8.3 pointer authentication is used. This should be fixed up in the
the future once real hardware is available for full testsuite testing.
gdb/ChangeLog:
* NEWS: Expand the Pointer Authentication entry.
* aarch64-tdep.c (aarch64_frame_unmask_address): Rename from this.
(aarch64_frame_unmask_lr): ... to this.
(aarch64_prologue_prev_register, aarch64_dwarf2_prev_register):
Call aarch64_frame_unmask_lr.
* frame.c (struct frame_info): Add "masked" variable.
(frame_set_previous_pc_masked) (frame_get_pc_masked): New functions.
(fprint_frame): Check for masked pc.
* frame.h (frame_set_previous_pc_masked) (frame_get_pc_masked): New
declarations.
* python/py-framefilter.c (py_print_frame): Check for masked pc.
* stack.c (print_frame): Check for masked pc.
gdb/doc/ChangeLog:
* gdb.texinfo (AArch64 Pointer Authentication): New subsection.
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With this patch, the help docs now respect 2 invariants:
* The first line of a command help is terminated by a '.' character.
* The last character of a command help is not a newline character.
Note that the changes for the last invariant were done by Tom, as part of :
[PATCH] Remove trailing newlines from help text
https://sourceware.org/ml/gdb-patches/2019-06/msg00050.html
but some occurrences have been re-introduced since then.
Some help docs had to be rephrased/restructured to respect the above
invariants.
Before this patch, print_doc_line was printing the first line
of a command help documentation, but stopping at the first '.'
or ',' character.
This was giving inconsistent results :
* The first line of command helps was sometimes '.' terminated,
sometimes not.
* The first line of command helps was not always designed to be
readable/understandable/unambiguous when stopping at the first
'.' or ',' character.
This e.g. created the following inconsistencies/problems:
< catch exception -- Catch Ada exceptions
< catch handlers -- Catch Ada exceptions
< catch syscall -- Catch system calls by their names
< down-silently -- Same as the `down' command
while the new help is:
> catch exception -- Catch Ada exceptions, when raised.
> catch handlers -- Catch Ada exceptions, when handled.
> catch syscall -- Catch system calls by their names, groups and/or numbers.
> down-silently -- Same as the `down' command, but does not print anything.
Also, the command help doc should not be terminated by a newline
character, but this was not respected by all commands.
The cli-option -OPT framework re-introduced some occurences.
So, the -OPT build help framework was changed to not output newlines at the
end of %OPTIONS% replacement.
This patch changes the help documentations to ensure the 2 invariants
given above.
It implied to slightly rephrase or restructure some help docs.
Based on the above invariants, print_doc_line (called by
'apropos' and 'help' commands to print the first line of a command
help) now outputs the full first line of a command help.
This all results in a lot of small changes in the produced help docs.
There are less code changes than changes in the help docs, as a lot
of docs are produced by some code (e.g. the remote packet usage settings).
gdb/ChangeLog
2019-08-07 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* cli/cli-decode.h (print_doc_line): Add for_value_prefix argument.
* cli/cli-decode.c (print_doc_line): Likewise. It now prints
the full first line, except when FOR_VALUE_PREFIX. In this case,
the trailing '.' is not output, and the first character is uppercased.
(print_help_for_command): Update call to print_doc_line.
(print_doc_of_command): Likewise.
* cli/cli-setshow.c (deprecated_show_value_hack): Likewise.
* cli/cli-option.c (append_indented_doc): Do not append newline.
(build_help_option): Append newline after first appended_indented_doc
only if a second call is done.
(build_help): Append 2 new lines before each option, except the first
one.
* compile/compile.c (_initialize_compile): Add new lines after
%OPTIONS%, when not at the end of the help.
Change help doc or code
producing the help doc to respect the invariants.
* maint-test-options.c (_initialize_maint_test_options): Likewise.
Also removed the new line after 'Options:', as all other commands
do not put an empty line between 'Options:' and the first option.
* printcmd.c (_initialize_printcmd): Likewise.
* stack.c (_initialize_stack): Likewise.
* interps.c (interpreter_exec_cmd): Fix "Usage:" line that was
incorrectly telling COMMAND is optional.
* ada-lang.c (_initialize_ada_language): Change help doc or code
producing the help doc to respect the invariants.
* ada-tasks.c (_initialize_ada_tasks): Likewise.
* breakpoint.c (_initialize_breakpoint): Likewise.
* cli/cli-cmds.c (_initialize_cli_cmds): Likewise.
* cli/cli-logging.c (_initialize_cli_logging): Likewise.
* cli/cli-setshow.c (_initialize_cli_setshow): Likewise.
* cli/cli-style.c (cli_style_option::add_setshow_commands,
_initialize_cli_style): Likewise.
* corelow.c (core_target_info): Likewise.
* dwarf-index-cache.c (_initialize_index_cache): Likewise.
* dwarf2read.c (_initialize_dwarf2_read): Likewise.
* filesystem.c (_initialize_filesystem): Likewise.
* frame.c (_initialize_frame): Likewise.
* gnu-nat.c (add_task_commands): Likewise.
* infcall.c (_initialize_infcall): Likewise.
* infcmd.c (_initialize_infcmd): Likewise.
* interps.c (_initialize_interpreter): Likewise.
* language.c (_initialize_language): Likewise.
* linux-fork.c (_initialize_linux_fork): Likewise.
* maint-test-settings.c (_initialize_maint_test_settings): Likewise.
* maint.c (_initialize_maint_cmds): Likewise.
* memattr.c (_initialize_mem): Likewise.
* printcmd.c (_initialize_printcmd): Likewise.
* python/lib/gdb/function/strfns.py (_MemEq, _StrLen, _StrEq,
_RegEx): Likewise.
* ravenscar-thread.c (_initialize_ravenscar): Likewise.
* record-btrace.c (_initialize_record_btrace): Likewise.
* record-full.c (_initialize_record_full): Likewise.
* record.c (_initialize_record): Likewise.
* regcache-dump.c (_initialize_regcache_dump): Likewise.
* regcache.c (_initialize_regcache): Likewise.
* remote.c (add_packet_config_cmd, init_remote_threadtests,
_initialize_remote): Likewise.
* ser-tcp.c (_initialize_ser_tcp): Likewise.
* serial.c (_initialize_serial): Likewise.
* skip.c (_initialize_step_skip): Likewise.
* source.c (_initialize_source): Likewise.
* stack.c (_initialize_stack): Likewise.
* symfile.c (_initialize_symfile): Likewise.
* symtab.c (_initialize_symtab): Likewise.
* target-descriptions.c (_initialize_target_descriptions): Likewise.
* top.c (init_main): Likewise.
* tracefile-tfile.c (tfile_target_info): Likewise.
* tracepoint.c (_initialize_tracepoint): Likewise.
* tui/tui-win.c (_initialize_tui_win): Likewise.
* utils.c (add_internal_problem_command): Likewise.
* valprint.c (value_print_option_defs): Likewise.
gdb/testsuite/ChangeLog
2019-08-07 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.base/style.exp: Update tests for help doc new invariants.
* gdb.base/help.exp: Likewise.
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