| Age | Commit message (Collapse) | Author | Files | Lines |
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This removes make_cleanup_delete_event_location and instead changes
the various location functions to return an event_location_up, a new
unique_ptr typedef.
This is largely straightforward, but be sure to examine the
init_breakpoint_sal change. I believe the code I deleted there is
dead, because "location != NULL" can never be true in that branch; but
you should double-check.
gdb/ChangeLog
2017-04-12 Tom Tromey <tom@tromey.com>
* tracepoint.c (scope_info): Update.
* spu-tdep.c (spu_catch_start): Update.
* python/python.c (gdbpy_decode_line): Update.
* python/py-finishbreakpoint.c (bpfinishpy_init): Update.
* python/py-breakpoint.c (bppy_init): Update.
* probe.c (parse_probes): Update.
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update.
* location.h (event_location_deleter): New struct.
(event_location_up): New typedef.
(new_linespec_location, new_address_location, new_probe_location)
(new_explicit_location, copy_event_location)
(string_to_event_location, string_to_event_location_basic)
(string_to_explicit_location): Update return type.
(make_cleanup_delete_event_location): Remove.
* location.c (new_linespec_location, new_address_location)
(new_probe_location, new_explicit_location, copy_event_location):
Return event_location_up.
(delete_event_location_cleanup)
(make_cleanup_delete_event_location): Remove.
(string_to_explicit_location, string_to_event_location_basic)
(string_to_event_location): Return event_location_up.
* linespec.c (canonicalize_linespec, event_location_to_sals)
(decode_line_with_current_source)
(decode_line_with_last_displayed, decode_objc): Update.
* guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update.
* completer.c (location_completer): Update.
* cli/cli-cmds.c (edit_command, list_command): Update.
* breakpoint.c (create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint)
(create_thread_event_breakpoint): Update.
(init_breakpoint_sal): Update. Remove some dead code.
(create_breakpoint_sal): Change type of "location". Update.
(create_breakpoints_sal, create_breakpoint, break_command_1)
(dprintf_command, break_range_command, until_break_command)
(init_ada_exception_breakpoint)
(strace_marker_create_sals_from_location)
(update_static_tracepoint, trace_command, ftrace_command)
(strace_command, create_tracepoint_from_upload): Update.
* break-catch-throw.c (re_set_exception_catchpoint): Update.
* ax-gdb.c (agent_command_1): Update.
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I posit that this makes them easier to find.
The other day while working on the wchar_t patch, I had a bit of
trouble finding the DJGPP/go32 tdep bits. My initial reaction was
looking for a go32-specific tdep file, but there's none.
Confirmed that a --host=i586-pc-msdosdjgpp GDB still builds
successfully and includes the i386-go32-tdep.o object.
Confirmed that an --enable-targets=all build of GDB on x86-64
GNU/Linux includes the DJGPP/go32 bits too.
gdb/ChangeLog:
2017-04-12 Pedro Alves <palves@redhat.com>
* Makefile.in (ALL_TARGET_OBS): Add i386-go32-tdep.o.
* configure.tgt: Handle i[34567]86-*-go32* and
i[34567]86-*-msdosdjgpp*.
* i386-tdep.c (i386_svr4_reg_to_regnum):
Make extern.
(i386_go32_init_abi, i386_coff_osabi_sniffer): Moved to
i386-go32-tdep.c.
(_initialize_i386_tdep): DJGPP bits moved to i386-go32-tdep.c.
* i386-go32-tdep.c: New file.
* i386-tdep.h (tdesc_i386_mmx, i386_svr4_reg_to_regnum): New
declarations.
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Obvious fix for:
aix-thread.c: In function 'char* pd_status2str(int)':
aix-thread.c:163:33: error: deprecated conversion from string constant to 'char*' [-Werror=write-strings]
case PTHDB_SUCCESS: return "SUCCESS";
^
gdb/ChangeLog:
* aix-thread.c (pd_status2str): Change return type to const char *.
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i386_gdbarch_init already does this unconditionally for all x86 ports.
Tested on x86-64 Fedora 23.
gdb/ChangeLog:
2017-04-12 Pedro Alves <palves@redhat.com>
* i386-tdep.c (i386_elf_init_abi, i386_go32_init_abi): Remove
calls to set_gdbarch_gnu_triplet_regexp.
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GDB is currently not aware that wchar_t is a built-in type in C++
mode. This is usually not a problem because the debug info describes
the type, so when you have a program loaded, you don't notice this.
However, if you try expressions involving wchar_t before a program is
loaded, gdb errors out:
(gdb) p (wchar_t)-1
No symbol table is loaded. Use the "file" command.
(gdb) p L"hello"
No type named wchar_t.
(gdb) ptype L"hello"
No type named wchar_t.
This commit teaches gdb about the type. After:
(gdb) p (wchar_t)-1
$1 = -1 L'\xffffffff'
(gdb) p L"hello"
$2 = L"hello"
(gdb) ptype L"hello"
type = wchar_t [6]
Unlike char16_t/char32_t, unfortunately, the underlying type of
wchar_t is implementation dependent, both size and signness. So this
requires adding a couple new gdbarch hooks.
I grepped the GCC code base for WCHAR_TYPE and WCHAR_TYPE_SIZE, and it
seems to me that the majority of the ABIs have a 4-byte signed
wchar_t, so that's what I made the default for GDB too. And then I
looked for which ports have a 16-bit and/or unsigned wchar_t, and made
GDB follow suit.
gdb/ChangeLog:
2017-04-12 Pedro Alves <palves@redhat.com>
PR gdb/21323
* c-lang.c (cplus_primitive_types) <cplus_primitive_type_wchar_t>:
New enum value.
(cplus_language_arch_info): Register cplus_primitive_type_wchar_t.
* gdbtypes.h (struct builtin_type) <builtin_wchar>: New field.
* gdbtypes.c (gdbtypes_post_init): Create the "wchar_t" type.
* gdbarch.sh (wchar_bit, wchar_signed): New per-arch values.
* gdbarch.h, gdbarch.c: Regenerate.
* aarch64-tdep.c (aarch64_gdbarch_init): Override
gdbarch_wchar_bit and gdbarch_wchar_signed.
* alpha-tdep.c (alpha_gdbarch_init): Likewise.
* arm-tdep.c (arm_gdbarch_init): Likewise.
* avr-tdep.c (avr_gdbarch_init): Likewise.
* h8300-tdep.c (h8300_gdbarch_init): Likewise.
* i386-nto-tdep.c (i386nto_init_abi): Likewise.
* i386-tdep.c (i386_go32_init_abi): Likewise.
* m32r-tdep.c (m32r_gdbarch_init): Likewise.
* moxie-tdep.c (moxie_gdbarch_init): Likewise.
* nds32-tdep.c (nds32_gdbarch_init): Likewise.
* rs6000-aix-tdep.c (rs6000_aix_init_osabi): Likewise.
* sh-tdep.c (sh_gdbarch_init): Likewise.
* sparc-tdep.c (sparc32_gdbarch_init): Likewise.
* sparc64-tdep.c (sparc64_init_abi): Likewise.
* windows-tdep.c (windows_init_abi): Likewise.
* xstormy16-tdep.c (xstormy16_gdbarch_init): Likewise.
gdb/testsuite/ChangeLog:
2017-04-12 Pedro Alves <palves@redhat.com>
PR gdb/21323
* gdb.cp/wide_char_types.c: Include <wchar.h>.
(wchar): New global.
* gdb.cp/wide_char_types.exp (wide_char_types_program)
(do_test_wide_char, wide_char_types_no_program, top level): Add
wchar_t testing.
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While the C++ standard says that char16_t and char32_t are unsigned types:
Types char16_t and char32_t denote distinct types with the same size,
signedness, and alignment as uint_least16_t and uint_least32_t,
respectively, in <cstdint>, called the underlying types.
... gdb treats them as signed currently:
(gdb) p (char16_t)-1
$1 = -1 u'\xffff'
There are actually two places in gdb that hardcode these types:
- gdbtypes.c:gdbtypes_post_init, when creating the built-in types,
seemingly used by the "x /s" command (judging from commit 9a22f0d0).
- dwarf2read.c, when reading base types with DW_ATE_UTF encoding
(which is what is used for these types, when compiling for C++11 and
up). Despite the comment, the type created does end up used.
Both places need fixing. But since I couldn't tell why dwarf2read.c
needs to create a new type, I've made it use the per-arch built-in
types instead, so that the types are only created once per arch
instead of once per objfile. That seems to work fine.
While writting the test, I noticed that the C++ language parser isn't
actually aware of these built-in types, so if you try to use them
without a program that uses them, you get:
(gdb) set language c++
(gdb) ptype char16_t
No symbol table is loaded. Use the "file" command.
(gdb) ptype u"hello"
No type named char16_t.
(gdb) p u"hello"
No type named char16_t.
That's fixed by simply adding a couple entries to C++'s built-in types
array in c-lang.c. With that, we get the expected:
(gdb) ptype char16_t
type = char16_t
(gdb) ptype u"hello"
type = char16_t [6]
(gdb) p u"hello"
$1 = u"hello"
gdb/ChangeLog:
2017-04-12 Pedro Alves <palves@redhat.com>
PR c++/21323
* c-lang.c (cplus_primitive_types) <cplus_primitive_type_char16_t,
cplus_primitive_type_char32_t>: New enum values.
(cplus_language_arch_info): Register cplus_primitive_type_char16_t
and cplus_primitive_type_char32_t.
* dwarf2read.c (read_base_type) <DW_ATE_UTF>: If bit size is 16 or
32, use the archtecture's built-in type for char16_t and char32_t,
respectively. Otherwise, fallback to init_integer_type as before,
but make the type unsigned, and issue a complaint.
* gdbtypes.c (gdbtypes_post_init): Make char16_t and char32_t unsigned.
gdb/testsuite/ChangeLog:
2017-04-12 Pedro Alves <palves@redhat.com>
PR c++/21323
* gdb.cp/wide_char_types.c: New file.
* gdb.cp/wide_char_types.exp: New file.
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gdb/
* m32r-tdep.c M32R_ARG_REGISTER_SIZE: Added.
(m32r_push_dummy_call): Use M32R_ARG_REGISTER_SIZE.
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Forgot to declare the variable 'toexec' (from
window-nat.c:windows_create_inferior) as 'const char *', which caused
a build breakage.
gdb/ChangeLog:
2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com>
* windows-nat.c (windows_create_inferior): Declare 'toexec' as
'const char *'.
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As a preparation for the next patch, which will move fork_inferior
from GDB to common/ (and therefore share it with gdbserver), it is
interesting to convert a few functions to C++.
This patch touches functions related to parsing command-line arguments
to the inferior (see gdb/fork-child.c:breakup_args), the way the
arguments are stored on fork_inferior (using std::vector instead of
char **), and the code responsible for dealing with argv also on
gdbserver.
I've taken this opportunity and decided to constify a few arguments to
fork_inferior/create_inferior as well, in order to make the code
cleaner. And now, on gdbserver, we're using xstrdup everywhere and
aren't checking for memory allocation failures anymore, as requested
by Pedro:
<https://sourceware.org/ml/gdb-patches/2017-03/msg00191.html>
Message-Id: <025ebdb9-90d9-d54a-c055-57ed2406b812@redhat.com>
Pedro Alves wrote:
> On the "== NULL" check: IIUC, the old NULL check was there to
> handle strdup returning NULL due to out-of-memory.
> See NULL checks and comments further above in this function.
> Now that you're using a std::vector, that doesn't work or make
> sense any longer, since if push_back fails to allocate space for
> its internal buffer (with operator new), our operator new replacement
> (common/new-op.c) calls malloc_failure, which aborts gdbserver.
>
> Not sure it makes sense to handle out-of-memory specially in
> the gdb/rsp-facing functions nowadays (maybe git blame/log/patch
> submission for that code shows some guidelines). Maybe (or, probably)
> it's OK to stop caring about it, but then we should consistently remove
> left over code, by using xstrdup instead and remove the NULL checks.
IMO this refactoring was very good to increase the readability of the
code as well, because some parts of the argument handling were
unnecessarily confusing before.
gdb/ChangeLog:
2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com>
* common/common-utils.c (free_vector_argv): New function.
* common/common-utils.h: Include <vector>.
(free_vector_argv): New prototype.
* darwin-nat.c (darwin_create_inferior): Rewrite function
prototype in order to constify "exec_file" and accept a
"std::string" for "allargs".
* fork-child.c: Include <vector>.
(breakup_args): Rewrite function, using C++.
(fork_inferior): Rewrite function header, constify "exec_file_arg"
and accept "std::string" for "allargs". Update the code to
calculate "argv" based on "allargs". Update calls to "exec_fun"
and "execvp".
* gnu-nat.c (gnu_create_inferior): Rewrite function prototype in
order to constify "exec_file" and accept a "std::string" for
"allargs".
* go32-nat.c (go32_create_inferior): Likewise.
* inf-ptrace.c (inf_ptrace_create_inferior): Likewise.
* infcmd.c (run_command_1): Constify "exec_file". Use
"std::string" for inferior arguments.
* inferior.h (fork_inferior): Update prototype.
* linux-nat.c (linux_nat_create_inferior): Rewrite function
prototype in order to constify "exec_file" and accept a
"std::string" for "allargs".
* nto-procfs.c (procfs_create_inferior): Likewise.
* procfs.c (procfs_create_inferior): Likewise.
* remote-sim.c (gdbsim_create_inferior): Likewise.
* remote.c (extended_remote_run): Update code to accept
"std::string" as argument.
(extended_remote_create_inferior): Rewrite function prototype in
order to constify "exec_file" and accept a "std::string" for
"allargs".
* rs6000-nat.c (super_create_inferior): Likewise.
(rs6000_create_inferior): Likewise.
* target.h (struct target_ops) <to_create_inferior>: Likewise.
* windows-nat.c (windows_create_inferior): Likewise.
gdb/gdbserver/ChangeLog:
2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com>
* server.c: Include <vector>.
<program_argv, wrapper_argv>: Convert to std::vector.
(start_inferior): Rewrite function to use C++.
(handle_v_run): Likewise. Update code that calculates the argv
based on the vRun packet; use C++.
(captured_main): Likewise.
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* elf-properties.c (_bfd_elf_parse_gnu_properties): Remove the
extra `\n' in warning/error messages.
* elf32-i386.c (elf_i386_parse_gnu_properties): Likewise.
* elf64-x86-64.c (elf_x86_64_parse_gnu_properties): Likewise.
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Skip processor-specific GNU program properties with generic ELF target
vector. They should be handled by the matching ELF target vector.
* elf-properties.c (_bfd_elf_parse_gnu_properties): Ignore
processor-specific properties with generic ELF target vector.
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gdb/ChangeLog:
2017-04-11 Pedro Alves <palves@redhat.com>
* thread.c: Fix whitespace throughout.
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At the end of linux_nat_detach the main_lwp is deleted (delete_lwp).
This is problematic as during detach (detach_one_lwp and
linux_fork_detach) main_lwp already gets freed. Thus calling
delete_lwp causes a read after free. Fix it by removing the
unnecessary delete_lwp.
gdb/ChangeLog:
2017-04-11 Philipp Rudo <prudo@linux.vnet.ibm.com>
* linux-nat.c (linux_nat_detach): Remove delete_lwp call.
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gdb/
* arm-tdep.c (arm_store_return_value): Use FP_REGISTER_SIZE
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Don't use fixed size buffers for symbol names.
PR 21274
PR 18466
* emultempl/pe.em (pe_find_data_imports): Don't use fixed size
symbol buffer. Instead, xmalloc max size needed with space for
prefix. Wrap overlong lines. Formatting. Pass symbol buffer
copy of name to pe_walk_relocs_of_symbol.
(make_inport_fixup): Add "name" param, pass to pe_create_import_fixup.
* emultempl/pe.em (pep_find_data_imports): As for pe_find_data_imports.
(make_import_fixup): Add "name" param, pass to pep_create_import_fixup.
Use bfd_get_signed_* and remove unnecessary casts. Formatting.
* pe-dll.c (pe_walk_relocs_of_symbol): Add "name" param. Pass to
callback.
(make_import_fixup_mark): Add "name" param. Make use of prefix
space rather than xmalloc here.
(pe_create_import_fixup): Likewise.
* pe-dll.h (pe_walk_relocs_of_symbol): Update prototype.
(pe_create_import_fixup): Likewise.
* pep-dll.h (pep_walk_relocs_of_symbol): Likewise.
(pep_create_import_fixup): Likewise.
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PPC_OPCODE_* renumbered to fill the gaps left by previous patches,
and reordered chronologically just because. I kept PPC_OPCODE_TMR
because presumably it might be used in future APUinfo for e6500.
include/
* opcode/ppc.h (PPC_OPCODE_*): Renumber and order chronologically.
(PPC_OPCODE_SPE): Comment on this and other bits used for APUinfo.
opcodes/
* ppc-dis.c (ppc_opts): Formatting. Set PPC_OPCODE_TMR for e6500.
* ppc-opc.c (powerpc_opcodes <mftmr, mttmr>): Remove now
unnecessary E6500.
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The -mhtm option is fairly useless too.
include/
* opcode/ppc.h (PPC_OPCODE_HTM): Delete.
gas/
* config/tc-ppc.c (md_show_usage): Delete mention of -mhtm.
* testsuite/gas/ppc/htm.d: Pass -mpower8 and -Mpower8.
opcodes/
* ppc-dis.c (ppc_opts): Remove PPC_OPCODE_HTM and "htm".
* ppc-opc.c (PPCHTM): Define as PPC_OPCODE_POWER8.
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This bit is also useless as it can be replaced with PPC_OPCODE_POWER9.
Defining the VSX2 and VSX3 selection based on cpu bits also lets the
assembler/disassembler distinguish between the power7 VSX opcodes and
the power8 ones. Note that this change means -mvsx now reverts back
to just adding the power7 VSX insns.
include/
* opcode/ppc.h (PPC_OPCODE_VSX3): Delete.
opcodes/
* ppc-dis.c (ppc_opts): Remove PPC_OPCODE_VSX3.
* ppc-opc.c (PPCVSX2): Define as PPC_OPCODE_POWER8.
(PPCVSX3): Define as PPC_OPCODE_POWER9.
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This bit is worse than useless. Using it prevents the assembler and
disassembler distinguishing between opcodes added for power8 and those
added for power9.
include/
* opcode/ppc.h (PPC_OPCODE_ALTIVEC2): Delete.
opcodes/
* ppc-dis.c (ppc_opts): Remove PPC_OPCODE_ALTIVEC2.
* ppc-opc.c (PPCVEC2): Define as PPC_OPCODE_POWER8|PPC_OPCODE_E6500.
(PPCVEC3): Define as PPC_OPCODE_POWER9.
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Pedro's recent commits enabling -Wwrite-strings has changed a bit the
logic of info_osdata. Now, 'type' is always non-NULL, so we have to
check if it's an empty string instead of NULL. One of the checks was
fixed, but there is another that was left behind. This commit fixes
it.
gdb/ChangeLog:
2017-04-10 Sergio Durigan Junior <sergiodj@redhat.com>
PR gdb/21364
* osdata.c (info_osdata): Check if 'type' is an empty string
instead of NULL.
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PR binutils/21319
* dwarf.c (display_gdb_index): Correct test for a corrupt address
table size.
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ld * ld.texinfo (--strip-discarded): Document.
(--embedded-relocs): Document.
(--spare-dynamic-tags): Document.
(--task-link): Document.
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gdb/ChangeLog:
2017-04-10 Pedro Alves <palves@redhat.com>
* thread.c (add_thread_silent, delete_thread_1, find_thread_ptid)
(ptid_to_global_thread_id, in_thread_list)
(do_captured_list_thread_ids, set_resumed, set_running)
(set_executing, set_stop_requested, finish_thread_state)
(validate_registers_access, can_access_registers_ptid)
(print_thread_info_1, switch_to_thread)
(do_restore_current_thread_cleanup)
(make_cleanup_restore_current_thread, thread_command)
(thread_name_command): Use operator== instead of ptid_equal.
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Commit 803bdfe43083475c7df3db38dc96f4e20d05457d ("Don't delete
thread_info if refcount isn't zero") eliminated
restore_current_thread_ptid_changed, so current_thread_cleanup_chain
is no longer necessary either.
gdb/ChangeLog:
2017-04-10 Pedro Alves <palves@redhat.com>
* thread.c (struct current_thread_cleanup) <next>: Delete field.
(current_thread_cleanup_chain): Delete.
(restore_current_thread_cleanup_dtor)
(make_cleanup_restore_current_thread): Remove references to
current_thread_cleanup_chain.
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gdb/
* msp430-tdep.c (msp430_pseudo_register_read): Never return
REG_UNKNOWN.
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I build GDB with asan, and run test case hook-stop.exp, and threadapply.exp,
I got the following asan error,
=================================================================^M
^[[1m^[[31m==2291==ERROR: AddressSanitizer: heap-use-after-free on address 0x6160000999c4 at pc 0x000000826022 bp 0x7ffd28a8ff70 sp 0x7ffd28a8ff60^M
^[[1m^[[0m^[[1m^[[34mREAD of size 4 at 0x6160000999c4 thread T0^[[1m^[[0m^M
#0 0x826021 in release_stop_context_cleanup ../../binutils-gdb/gdb/infrun.c:8203^M
#1 0x72798a in do_my_cleanups ../../binutils-gdb/gdb/common/cleanups.c:154^M
#2 0x727a32 in do_cleanups(cleanup*) ../../binutils-gdb/gdb/common/cleanups.c:176^M
#3 0x826895 in normal_stop() ../../binutils-gdb/gdb/infrun.c:8381^M
#4 0x815208 in fetch_inferior_event(void*) ../../binutils-gdb/gdb/infrun.c:4011^M
#5 0x868aca in inferior_event_handler(inferior_event_type, void*) ../../binutils-gdb/gdb/inf-loop.c:44^M
....
^[[1m^[[32m0x6160000999c4 is located 68 bytes inside of 568-byte region [0x616000099980,0x616000099bb8)^M
^[[1m^[[0m^[[1m^[[35mfreed by thread T0 here:^[[1m^[[0m^M
#0 0x7fb0bc1312ca in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x982ca)^M
#1 0xb8c62f in xfree(void*) ../../binutils-gdb/gdb/common/common-utils.c:100^M
#2 0x83df67 in free_thread ../../binutils-gdb/gdb/thread.c:207^M
#3 0x83dfd2 in init_thread_list() ../../binutils-gdb/gdb/thread.c:223^M
#4 0x805494 in kill_command ../../binutils-gdb/gdb/infcmd.c:2595^M
....
Detaching from program: /home/yao.qi/SourceCode/gnu/build-with-asan/gdb/testsuite/outputs/gdb.threads/threadapply/threadapply, process 2399^M
=================================================================^M
^[[1m^[[31m==2387==ERROR: AddressSanitizer: heap-use-after-free on address 0x6160000a98c0 at pc 0x00000083fd28 bp 0x7ffd401c3110 sp 0x7ffd401c3100^M
^[[1m^[[0m^[[1m^[[34mREAD of size 4 at 0x6160000a98c0 thread T0^[[1m^[[0m^M
#0 0x83fd27 in thread_alive ../../binutils-gdb/gdb/thread.c:741^M
#1 0x844277 in thread_apply_all_command ../../binutils-gdb/gdb/thread.c:1804^M
....
^M
^[[1m^[[32m0x6160000a98c0 is located 64 bytes inside of 568-byte region [0x6160000a9880,0x6160000a9ab8)^M
^[[1m^[[0m^[[1m^[[35mfreed by thread T0 here:^[[1m^[[0m^M
#0 0x7f59a7e322ca in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x982ca)^M
#1 0xb8c62f in xfree(void*) ../../binutils-gdb/gdb/common/common-utils.c:100^M
#2 0x83df67 in free_thread ../../binutils-gdb/gdb/thread.c:207^M
#3 0x83dfd2 in init_thread_list() ../../binutils-gdb/gdb/thread.c:223^M
This patch fixes the issue by deleting thread_info object if it is
deletable, otherwise, mark it as exited (by set_thread_exited).
Function set_thread_exited is shared from delete_thread_1. This patch
also moves field "refcount" to private and methods incref and
decref. Additionally, we stop using "ptid_t" in
"struct current_thread_cleanup" to reference threads, instead we use
"thread_info" directly. Due to this change, we don't need
restore_current_thread_ptid_changed anymore.
gdb:
2017-04-10 Yao Qi <yao.qi@linaro.org>
PR gdb/19942
* gdbthread.h (thread_info::deletable): New method.
(thread_info::incref): New method.
(thread_info::decref): New method.
(thread_info::refcount): Move it to private.
* infrun.c (save_stop_context): Call inc_refcount.
(release_stop_context_cleanup): Likewise.
* thread.c (set_thread_exited): New function.
(init_thread_list): Delete "tp" only it is deletable, otherwise
call set_thread_exited.
(delete_thread_1): Call set_thread_exited.
(current_thread_cleanup) <inferior_pid>: Remove.
<thread>: New field.
(restore_current_thread_ptid_changed): Removed.
(do_restore_current_thread_cleanup): Adjust.
(restore_current_thread_cleanup_dtor): Don't call
find_thread_ptid.
(set_thread_refcount): Use dec_refcount.
(make_cleanup_restore_current_thread): Adjust.
(thread_apply_all_command): Call inc_refcount.
(_initialize_thread): Don't call
observer_attach_thread_ptid_changed.
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This patch hoists code on marking thread as exited, so more code is shared
for two different paths (thread_info is deleted or is not deleted).
gdb:
2017-04-10 Yao Qi <yao.qi@linaro.org>
* thread.c (delete_thread_1): Hoist code on marking thread as
exited.
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* config/tc-xtensa.c (xtensa_maybe_create_literal_pool_frag):
Initialize lps->frag_count with auto_litpool_limit.
(xg_promote_candidate_litpool): New function.
(xtensa_move_literals): Extract candidate litpool promotion code
into separate function. Call it for all possible found
candidates.
(xtensa_switch_to_literal_fragment): Drop 'recursive' flag and
call to xtensa_mark_literal_pool_location that it guards.
Replace it with call to xtensa_maybe_create_literal_pool_frag.
Initialize pool_location with created literal pool candidate.
* testsuite/gas/xtensa/all.exp: Add new tests.
* testsuite/gas/xtensa/auto-litpools-first1.d: New test results.
* testsuite/gas/xtensa/auto-litpools-first1.s: New test.
* testsuite/gas/xtensa/auto-litpools-first2.d: New test results.
* testsuite/gas/xtensa/auto-litpools-first2.s: New test.
* testsuite/gas/xtensa/auto-litpools.d: Fix offsets changed due
to additional jump instruction.
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weak symbol) to the SPARC architecture.
* elf32-sparc.c (elf_backend_fixup_symbol): New.
* elf64-sparc.c (elf_backend_fixup_symbol): New.
* elfxx-sparc.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New.
(_bfd_sparc_elf_link_hash_entry): Add has_got_reloc and
has_non_got_reloc.
(link_hash_newfunc): Initialize has_got_reloc and
has_non_got_reloc.
(_bfd_sparc_elf_size_dynamic_sections): Set interp to .interp
section.
(_bfd_sparc_elf_copy_indirect_symbol): Copy has_got_reloc and
has_non_got_reloc.
(_bfd_sparc_elf_check_relocs): Set has_got_reloc and
has_non_got_reloc.
(_bfd_sparc_elf_fixup_symbol): New function.
(allocate_dynrelocs): Don't allocate space for dynamic
relocations and discard relocations against resolved undefined
weak symbols in executable. Don't make resolved undefined weak
symbols in executable dynamic. Keep dynamic non-GOT/non-PLT
relocation against undefined weak symbols in PIE.
(_bfd_sparc_elf_relocate_section): Don't generate dynamic
relocations against resolved undefined weak symbols in PIE
(_bfd_sparc_elf_finish_dynamic_symbol): Keep PLT/GOT entries
without ynamic PLT/GOT relocations for resolved undefined weak
symbols.
Don't generate dynamic relocation against resolved undefined
weak symbol in executable.
(pie_finish_undefweak_symbol): New function.
(_bfd_sparc_elf_finish_dynamic_sections): Call
pie_finish_undefweak_symbol on all symbols in PIE.
* elfxx-sparc.h (_bfd_sparc_elf_link_hash_table): Add interp.
(_bfd_sparc_elf_fixup_symbol): New function.
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* config.bfd: Remove ns32k from obsolete list.
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PPC_OPCODE_440 being set for ppc476 meant that many opcodes needed to
be deprecated for ppc476. There are far fewer to add specially for
ppc476 if PPC_OPCODE_440 is not set for ppc476.
* ppc-dis.c (ppc_opts <476>): Remove PPC_OPCODE_440.
* ppc-opc.c (MULHW): Add PPC_OPCODE_476.
(powerpc_opcodes): Adjust PPC440, PPC464 and PPC476 insns to suit
removal of PPC_OPCODE_440 from ppc476 cpu selection bits.
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PR21287 notes that .init_array is correctly given a type of
SHT_INIT_ARRAY while .init_array.nnn gets SHT_PROGBITS. This patch
fixes that problem, and properly drops warnings from the compiler that
would cause the testsuite to fail. My a44d0bd78 change to check
ld_compile status, necessary to pick up compile errors, also meant
warnings were not ignored.
bfd/
PR 21287
* elf.c (special_sections_f): Match .fini_array and .fini_array.*.
(special_sections_i): Likewise for .init_array.
(special_sections_p): Likewise for .preinit_array.
ld/
PR 21287
* testsuite/ld-elf/init-fini-arrays.d: Match INIT_ARRAY and FINI_ARRAY.
* testsuite/ld-elf/init-fini-arrays.s: Use %init_array and %fini_array
section types.
* testsuite/lib/ld-lib.exp (default_ld_compile): Trim assembler
warnings about "ignoring incorrect section type".
(run_ld_link_exec_tests, run_cc_link_tests): Delete old comment.
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My mips-linux and mips64-linux testsuite runs have been failing a
bunch of visibility tests, seemingly randomly. It turns out the
problem occurs when object files are left over in ld/tmpdir from a
previous run.
* testsuite/ld-elfvsb/elfvsb.exp (visibility_run): Delete
sh1p.o, sh2p.o, sh1np.o and sh2np.o before compiling. Use
remote_file host exists rather than file exists.
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* wasm32-dis.c (print_insn_wasm32): Avoid DECIMAL_DIG, specify
appropriate floating-point precision directly.
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When trying to build for x86_64-w64-mingw32:
/home/simark/src/binutils-gdb/gdb/windows-nat.c: In function ‘void windows_detach(target_ops*, const char*, int)’:
/home/simark/src/binutils-gdb/gdb/windows-nat.c:1915:20: error: converting to ‘ptid_t’ from initializer list would use explicit constructor ‘constexpr ptid_t::ptid_t(int, long int, long int)’
ptid_t ptid = {-1};
^
Fixed by initializing ptid with the minus_one_ptid variable.
gdb/ChangeLog:
* windows-nat.c (windows_detach): Initialize ptid with
minus_one_ptid.
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sim/aarch64/
* simulator.c (do_vec_FCVTL): New.
(do_vec_op1): Call do_vec_FCVTL.
sim/testsuite/sim/aarch64/
* fcvtl.s: New.
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sim/aarch64/
* simulator.c (do_scalar_FCMGE_zero): New.
(do_scalar_FCMLE_zero, do_scalar_FCMGT_zero, do_scalar_FCMEQ_zero)
(do_scalar_FCMLT_zero): Likewise.
(do_scalar_vec): Add calls to new functions.
sim/testsuite/sim/aarch64/
* fcmXX.s: New.
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Since not all compilers support -no-pie, NOPIE_CFLAGS and NOPIE_LDFLAGS
should be used to disable PIE.
PR ld/21090
* testsuite/ld-x86-64/x86-64.exp (undefined_weak): Use
NOPIE_CFLAGS and NOPIE_LDFLAGS to disable PIE for the non-pie
version of the test.
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Since common symbols that are turned into definitions don't have the
DEF_REGULAR flag set, we need to check ELF_COMMON_DEF_P for common
symbols.
bfd/
PR ld/19579
PR ld/21306
* elf32-s390.c (elf_s390_finish_dynamic_symbol): Check
ELF_COMMON_DEF_P for common symbols.
* elf64-s390.c (elf_s390_finish_dynamic_symbol): Likewise.
* elf64-x86-64.c (elf_x86_64_relocate_section): Likewise.
* elflink.c (_bfd_elf_merge_symbol): Revert commits
202ac193bbbecc96a4978d1ac3d17148253f9b01 and
07492f668d2173da7a2bda3707ff0985e0f460b6.
ld/
PR ld/19579
PR ld/21306
* testsuite/ld-elf/pr19579a.c (main): Updated.
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gdb/ChangeLog:
* unittests/ptid-selftests.c: Fix erroneous assert messages.
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find_separate_debug_file interface.
* opncls.c (bfd_get_debug_link_info): Rename to...
(bfd_get_debug_link_info_1): ... this. Change type of second
parameter to void pointer. Adjust.
(bfd_get_debug_link_info): Reimplement on top of
bfd_get_debug_link_info_1.
(separate_debug_file_exists, separate_alt_debug_file_exists):
Change type of second parameter to void pointer. Adjust.
(get_func_type, check_func_type): Change type of second parameter
to void pointer.
(find_separate_debug_file): Add 'func_data' parameter. Pass it to
the callback functions instead of passing the address of a local.
(bfd_follow_gnu_debuglink): Pass address of unsigned long local to
find_separate_debug_file.
(get_alt_debug_link_info_shim): Change type of second parameter to
void pointer. Adjust.
(bfd_follow_gnu_debugaltlink): Adjust to pass NULL to
find_separate_debug_file.
(get_build_id_name, bfd_boolean check_build_id_file): Change type
of second parameter to void pointer. Adjust.
(bfd_follow_build_id_debuglink): Pass address of bfd_build_id
pointer local to find_separate_debug_file.
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PR 21090
* testsuite/ld-x86-64/x86-64.exp (undefined_weak): Explicitly
disable PIE for the non-pie version of the test.
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This isn't losing anything from the testsuite. All of these insns
appear in testsuite/gas/ppc/e6500.s
opcodes/
* ppc-opc.c (powerpc_opcodes <mviwsplt, mvidsplt, lvexbx, lvepxl,
lvexhx, lvepx, lvexwx, stvexbx, stvexhx, stvexwx, lvtrx, lvtlx,
lvswx, stvfrx, stvflx, stvswx, lvsm, stvepxl, lvtrxl, stvepx,
lvtlxl, lvswxl, stvfrxl, stvflxl, stvswxl>): Enable E6500 only
vector instructions with E6500 not PPCVEC2.
gas/
* testsuite/gas/ppc/altivec2.s: Delete E6500 vector insns.
* testsuite/gas/ppc/altivec2.d: Adjust to suit.
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* testsuite/ld-elf/mbind2a.s: Don't use @, the ARM comment char.
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