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2014-02-20Deprecate windows-specific dll-symbols command and aliasesJoel Brobecker1-0/+4
The "dll-symbols" command, specific to native Windows platforms, gives the impression that the symbols were not loaded, first because it completes silently, and second because the "info shared" output does not get updated after the command completes: (gdb) dll-symbols C:\WINDOWS\syswow64\rpcrt4.dll (gdb) info shared From To Syms Read Shared Object Library [...] 0x77e51000 0x77ee2554 No C:\WINDOWS\system32\rpcrt4.dll (we exected the "Syms Read" column to read "Yes"). As far as I can tell, the symbols actually do get loaded, but completely independently from the solib framework, which explains the silent loading and the fact that the "Syms Read" column does not get updated. See windows-nat.c::safe_symbol_file_add_stub, which calls symbol_file_add instead of calling solib_add. But, aside from the fact that the "Syms Read" status does not get updated, I also noticed that it does not take into account the DLL's actual load address when loading its symbols. As a result, I believe that we get it wrong if the DLL does not get loaded at the prefered address. Rather than trying to fix this command, there does not seem to be a reason other than historical for having Windows-specific commands which essentially re-implements the "sharedlibrary" command. The command interface is slightly different (the latter takes a regexp rather than a plain filename), but it should be just as easy to use the "sharedlibrary" command, or its "share" alias, as usisng the "dll-symbols" command. For instance: (gdb) share rpcrt4.dll Reading symbols from C:\WINDOWS\system32\rpcrt4.dll...(no debugging symbols found)...done. Loaded symbols for C:\WINDOWS\system32\rpcrt4.dll (gdb) info shared From To Syms Read Shared Object Library [...] 0x77e51000 0x77ee2554 Yes (*) C:\WINDOWS\system32\rpcrt4.dll This patch therefore deprecates the "dll-symbols" command, as well as its two aliases "add-shared-symbol-files" and "assf", with a view of deleting them as soon as the 7.8 branch gets cut. gdb/ChangeLog: * windows-nat.c (_initialize_windows_nat): Deprecate the "dll-symbols" command. Turn the "add-shared-symbol-files" and "assf" aliases into commands, and deprecate them as well. * NEWS: Add entry explaining that "dll-symbols" and its two aliases are now deprecated. gdb/doc/ChangeLog: * gdb.texinfo (Files): Document "add-shared-symbol-files" and "assf" as being deprecated. (Cygwin Native): Likewise for "dll-symbols". (Non-debug DLL Symbols): Remove reference to "dll-symbols" as a way to force the loading of symbols from a DLL.
2014-02-19Call overloaded operators to perform operations on gdb.Value objects.Siva Chandra1-0/+6
* NEWS: Add entry for the new feature * python/py-value.c (valpy_binop): Call value_x_binop for struct and class values. testsuite/ * gdb.python/py-value-cc.cc: Improve test case to enable testing operations on gdb.Value objects. * gdb.python/py-value-cc.exp: Add new test to test operations on gdb.Value objects. doc/ * python.texi (Values From Inferior): Add description about the new feature.
2014-02-09Add Guile as an extension language.Doug Evans1-0/+31
* NEWS: Mention Guile scripting. * Makefile.in (SUBDIR_GUILE_OBS): New variable. (SUBDIR_GUILE_SRCS, SUBDIR_GUILE_DEPS): New variables (SUBDIR_GUILE_LDFLAGS, SUBDIR_GUILE_CFLAGS): New variables. (INTERNAL_CPPFLAGS): Add GUILE_CPPFLAGS. (CLIBS): Add GUILE_LIBS. (install-guile): New rule. (guile.o): New rule. (scm-arch.o, scm-auto-load.o, scm-block.o): New rules. (scm-breakpoint.o, scm-disasm.o, scm-exception.o): New rules. (scm-frame.o, scm-iterator.o, scm-lazy-string.o): New rules. (scm-math.o, scm-objfile.o, scm-ports.o): New rules. (scm-pretty-print.o, scm-safe-call.o, scm-gsmob.o): New rules. (scm-string.o, scm-symbol.o, scm-symtab.o): New rules. (scm-type.o, scm-utils.o, scm-value.o): New rules. * configure.ac: New option --with-guile. * configure: Regenerate. * config.in: Regenerate. * auto-load.c: Remove #include "python/python.h". Add #include "gdb/section-scripts.h". (source_section_scripts): Handle Guile scripts. (_initialize_auto_load): Add name of Guile objfile script to scripts-directory help text. * breakpoint.c (condition_command): Tweak comment to include Scheme. * breakpoint.h (gdbscm_breakpoint_object): Add forward decl. (struct breakpoint): New member scm_bp_object. * defs.h (enum command_control_type): New value guile_control. * cli/cli-cmds.c: Remove #include "python/python.h". Add #include "extension.h". (show_user): Update comment. (_initialize_cli_cmds): Update help text for "show user". Update help text for max-user-call-depth. * cli/cli-script.c: Remove #include "python/python.h". Add #include "extension.h". (multi_line_command_p): Add guile_control. (print_command_lines): Handle guile_control. (execute_control_command, recurse_read_control_structure): Ditto. (process_next_line): Recognize "guile" commands. * disasm.c (gdb_disassemble_info): Make non-static. * disasm.h: #include "dis-asm.h". (struct gdbarch): Add forward decl. (gdb_disassemble_info): Declare. * extension.c: #include "guile/guile.h". (extension_languages): Add guile. (get_ext_lang_defn): Handle EXT_LANG_GDB. * extension.h (enum extension_language): New value EXT_LANG_GUILE. * gdbtypes.c (get_unsigned_type_max): New function. (get_signed_type_minmax): New function. * gdbtypes.h (get_unsigned_type_max): Declare. (get_signed_type_minmax): Declare. * guile/README: New file. * guile/guile-internal.h: New file. * guile/guile.c: New file. * guile/guile.h: New file. * guile/scm-arch.c: New file. * guile/scm-auto-load.c: New file. * guile/scm-block.c: New file. * guile/scm-breakpoint.c: New file. * guile/scm-disasm.c: New file. * guile/scm-exception.c: New file. * guile/scm-frame.c: New file. * guile/scm-gsmob.c: New file. * guile/scm-iterator.c: New file. * guile/scm-lazy-string.c: New file. * guile/scm-math.c: New file. * guile/scm-objfile.c: New file. * guile/scm-ports.c: New file. * guile/scm-pretty-print.c: New file. * guile/scm-safe-call.c: New file. * guile/scm-string.c: New file. * guile/scm-symbol.c: New file. * guile/scm-symtab.c: New file. * guile/scm-type.c: New file. * guile/scm-utils.c: New file. * guile/scm-value.c: New file. * guile/lib/gdb.scm: New file. * guile/lib/gdb/boot.scm: New file. * guile/lib/gdb/experimental.scm: New file. * guile/lib/gdb/init.scm: New file. * guile/lib/gdb/iterator.scm: New file. * guile/lib/gdb/printing.scm: New file. * guile/lib/gdb/types.scm: New file. * data-directory/Makefile.in (GUILE_SRCDIR): New variable. (VPATH): Add $(GUILE_SRCDIR). (GUILE_DIR): New variable. (GUILE_INSTALL_DIR, GUILE_FILES): New variables. (all): Add stamp-guile dependency. (stamp-guile): New rule. (clean-guile, install-guile, uninstall-guile): New rules. (install-only): Add install-guile dependency. (uninstall): Add uninstall-guile dependency. (clean): Add clean-guile dependency. doc/ * Makefile.in (GDB_DOC_FILES): Add guile.texi. * gdb.texinfo (Auto-loading): Add set/show auto-load guile-scripts. (Extending GDB): New menu entries Guile, Multiple Extension Languages. (Guile docs): Include guile.texi. (objfile-gdbdotext file): Add objfile-gdb.scm. (dotdebug_gdb_scripts section): Mention Guile scripts. (Multiple Extension Languages): New node. * guile.texi: New file. testsuite/ * configure.ac (AC_OUTPUT): Add gdb.guile. * configure: Regenerate. * lib/gdb-guile.exp: New file. * lib/gdb.exp (get_target_charset): New function. * gdb.base/help.exp: Update expected output from "apropos apropos". * gdb.guile/Makefile.in: New file. * gdb.guile/guile.exp: New file. * gdb.guile/scm-arch.c: New file. * gdb.guile/scm-arch.exp: New file. * gdb.guile/scm-block.c: New file. * gdb.guile/scm-block.exp: New file. * gdb.guile/scm-breakpoint.c: New file. * gdb.guile/scm-breakpoint.exp: New file. * gdb.guile/scm-disasm.c: New file. * gdb.guile/scm-disasm.exp: New file. * gdb.guile/scm-equal.c: New file. * gdb.guile/scm-equal.exp: New file. * gdb.guile/scm-error.exp: New file. * gdb.guile/scm-error.scm: New file. * gdb.guile/scm-frame-args.c: New file. * gdb.guile/scm-frame-args.exp: New file. * gdb.guile/scm-frame-args.scm: New file. * gdb.guile/scm-frame-inline.c: New file. * gdb.guile/scm-frame-inline.exp: New file. * gdb.guile/scm-frame.c: New file. * gdb.guile/scm-frame.exp: New file. * gdb.guile/scm-generics.exp: New file. * gdb.guile/scm-gsmob.exp: New file. * gdb.guile/scm-iterator.c: New file. * gdb.guile/scm-iterator.exp: New file. * gdb.guile/scm-math.c: New file. * gdb.guile/scm-math.exp: New file. * gdb.guile/scm-objfile-script-gdb.in: New file. * gdb.guile/scm-objfile-script.c: New file. * gdb.guile/scm-objfile-script.exp: New file. * gdb.guile/scm-objfile.c: New file. * gdb.guile/scm-objfile.exp: New file. * gdb.guile/scm-ports.exp: New file. * gdb.guile/scm-pretty-print.c: New file. * gdb.guile/scm-pretty-print.exp: New file. * gdb.guile/scm-pretty-print.scm: New file. * gdb.guile/scm-section-script.c: New file. * gdb.guile/scm-section-script.exp: New file. * gdb.guile/scm-section-script.scm: New file. * gdb.guile/scm-symbol.c: New file. * gdb.guile/scm-symbol.exp: New file. * gdb.guile/scm-symtab-2.c: New file. * gdb.guile/scm-symtab.c: New file. * gdb.guile/scm-symtab.exp: New file. * gdb.guile/scm-type.c: New file. * gdb.guile/scm-type.exp: New file. * gdb.guile/scm-value-cc.cc: New file. * gdb.guile/scm-value-cc.exp: New file. * gdb.guile/scm-value.c: New file. * gdb.guile/scm-value.exp: New file. * gdb.guile/source2.scm: New file. * gdb.guile/types-module.cc: New file. * gdb.guile/types-module.exp: New file.
2014-02-04Document support for powerpc64le-*-linux* targetUlrich Weigand1-0/+3
gdb/ChangeLog: * NEWS: Document new target powerpc64le-*-linux*.
2014-01-28New Ada maintenance command to ignore descriptive types (DWARF).Joel Brobecker1-0/+9
Currently, Ada debugging requires the use of certain GNAT-specific encodings, which are generated by the compiler. These encodings were created a long time ago to work around the fairly limited capabilities of the stabs debugging format. With DWARF, the vast majority of the encodings could be abandoned in favor of a pure DWARF approach. In order to make it easier to evaluate the quality of the DWARF debugging information generated by the compiler, and how the debugger handles it, we are introducing a small Ada-specific maintenance setting which changes the debugger's behavior to ignore descriptive types. Descriptive types are artificial types generated by the compiler purely to give the debugger hints as to how to properly decode certain properties of a type. For instance, for array types, it generates a parallel type whose name is the name of the array suffixed with ___XA, whose contents tells us what the array's index type is, and possibly its bounds. See GCC's gcc/ada/exp_dbug.ads for the full description of all encodings. This is only a first step, as this setting does not deactivate all encodings; More settings dedicated to each type of encoding will likely be implemented in the future, as we make progress. gdb/ChangeLog: * ada-lang.c (maint_set_ada_cmdlist, maint_show_ada_cmdlist): New static globals. (maint_set_ada_cmd, maint_show_ada_cmd): New functions. (ada_ignore_descriptive_types_p): New static global. (find_parallel_type_by_descriptive_type): Return immediately if ada_ignore_descriptive_types_p is set. (_initialize_ada_language): Register new commands "maintenance set ada", "maintenance show ada", "maintenance set ada ignore-descriptive-types" and "maintenance show ada ignore-descriptive-types". * NEWS: Add entry for new "maint ada set/show ignore-descriptive-types" commands. gdb/doc/ChangeLog: * gdb.texinfo (Ada Glitches): Document the new "maint ada set/show ignore-descriptive-types". commands.
2014-01-22 New gdbserver option --debug-format=timestamp.Doug Evans1-0/+8
* NEWS: Mention it. gdbserver/ * configure.ac (AC_CHECK_FUNCS): Add test for gettimeofday. * configure: Regenerate. * config.in: Regenerate. * Makefile.in (SFILES): Add debug.c. (OBS): Add debug.o. * debug.c: New file. * debug.h: New file. * linux-aarch64-low.c (*): Update all debugging printfs to use debug_printf instead of fprintf. * linux-arm-low.c (*): Ditto. * linux-cris-low.c (*): Ditto. * linux-crisv32-low.c (*): Ditto. * linux-m32r-low.c (*): Ditto. * linux-sparc-low.c (*): Ditto. * linux-x86.c (*): Ditto. * linux-low.c (*): Ditto. (linux_wait_1): Add calls to debug_enter, debug_exit. (linux_wait): Remove redundant debugging printf. (stop_all_lwps): Add calls to debug_enter, debug_exit. (linux_resume, unstop_all_lwps): Ditto. * mem-break.c (*): Update all debugging printfs to use debug_printf instead of fprintf. * remote-utils.c (*): Ditto. * thread-db.c (*): Ditto. * server.c #include <ctype.h>, "gdb_vecs.h". (debug_threads): Moved to debug.c. (*): Update all debugging printfs to use debug_printf instead of fprintf. (start_inferior): Replace call to fflush with call to debug_flush. (monitor_show_help): Mention set debug-format. (parse_debug_format_options): New function. (handle_monitor_command): Handle "monitor set debug-format". (gdbserver_usage): Mention --debug-format. (main): Parse --debug-format. * server.h (debug_threads): Declaration moved to debug.h. #include "debug.h". * tracepoint.c (trace_debug_1) [!IN_PROCESS_AGENT]: Add version of trace_debug_1 that uses debug_printf. (tracepoint_look_up_symbols): Update all debugging printfs to use debug_printf instead of fprintf. doc/ * gdb.texinfo (Server): Mention --debug-format=all|none|timestamp. (gdbserver man): Ditto. testsuite/ * gdb.server/server-mon.exp: Add tests for "set debug-format".
2014-01-22gdb/ChangeLog:Andreas Arnez1-0/+2
* syscalls/s390x-linux.xml: New file. * syscalls/s390-linux.xml: New file. * s390-linux-tdep.c (XML_SYSCALL_FILENAME_S390): New macro. (XML_SYSCALL_FILENAME_S390X): Likewise. (op_svc): New enum value for SVC opcode. (s390_sigtramp_frame_sniffer): Replace literal by 'op_svc'. (s390_linux_get_syscall_number): New function. (s390_gdbarch_init): Register '*get_syscall_number' and the syscall xml file name. * data-directory/Makefile.in (SYSCALLS_FILES): Add "s390-linux.xml" and "s390x-linux.xml". * NEWS: Announce new feature. gdb/testsuite/ChangeLog: * gdb.base/catch-syscall.exp: Activate test on s390*-linux.
2014-01-16record-btrace: add (reverse-)stepping supportMarkus Metzger1-0/+4
Provide to_resume and to_wait target methods for the btrace record target to allow reverse stepping and replay support. Replay is limited in the sense that only stepping and source correlation are supported. We do not record data and thus can not show variables. Non-stop mode is not working. Do not allow record-btrace in non-stop mode. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.h (btrace_thread_flag): New. (struct btrace_thread_info) <flags>: New. * record-btrace.c (record_btrace_resume_thread) (record_btrace_find_thread_to_move, btrace_step_no_history) (btrace_step_stopped, record_btrace_start_replaying) (record_btrace_step_thread, record_btrace_decr_pc_after_break) (record_btrace_find_resume_thread): New. (record_btrace_resume, record_btrace_wait): Extend. (record_btrace_can_execute_reverse): New. (record_btrace_open): Fail in non-stop mode. (record_btrace_set_replay): Split into this, ... (record_btrace_stop_replaying): ... this, ... (record_btrace_clear_histories): ... and this. (init_record_btrace_ops): Init to_can_execute_reverse. * NEWS: Announce it. testsuite/ * gdb.btrace/delta.exp: Check reverse stepi. * gdb.btrace/tailcall.exp: Update. Add stepping tests. * gdb.btrace/finish.exp: New. * gdb.btrace/next.exp: New. * gdb.btrace/nexti.exp: New. * gdb.btrace/record_goto.c: Add comments. * gdb.btrace/step.exp: New. * gdb.btrace/stepi.exp: New. * gdb.btrace/multi-thread-step.c: New. * gdb.btrace/multi-thread-step.exp: New. * gdb.btrace/rn-dl-bind.c: New. * gdb.btrace/rn-dl-bind.exp: New. * gdb.btrace/data.c: New. * gdb.btrace/data.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo: Document limited reverse/replay support for target record-btrace.
2014-01-16btrace, gdbserver: read branch trace incrementallyMarkus Metzger1-0/+6
Read branch trace data incrementally and extend the current trace rather than discarding it and reading the entire trace buffer each time. If the branch trace buffer overflowed, we can't extend the current trace so we discard it and start anew by reading the entire branch trace buffer. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/linux-btrace.c (perf_event_read_bts, linux_read_btrace): Support delta reads. (linux_disable_btrace): Change return type. * common/linux-btrace.h (linux_read_btrace): Change parameters and return type to allow error reporting. Update users. (linux_disable_btrace): Change return type. Update users. * common/btrace-common.h (btrace_read_type) <BTRACE_READ_DELTA>: New. (btrace_error): New. (btrace_block) <begin>: Comment on BEGIN == 0. * btrace.c (btrace_compute_ftrace): Start from the end of the current trace. (btrace_stitch_trace, btrace_clear_history): New. (btrace_fetch): Read delta trace, return if replaying. (btrace_clear): Move clear history code to btrace_clear_history. (parse_xml_btrace): Throw an error if parsing failed. * target.h (struct target_ops) <to_read_btrace>: Change parameters and return type to allow error reporting. (target_read_btrace): Change parameters and return type to allow error reporting. * target.c (target_read_btrace): Update. * remote.c (remote_read_btrace): Support delta reads. Pass errors on. * NEWS: Announce it. gdbserver/ * target.h (target_ops) <read_btrace>: Change parameters and return type to allow error reporting. * server.c (handle_qxfer_btrace): Support delta reads. Pass trace reading errors on. * linux-low.c (linux_low_read_btrace): Pass trace reading errors on. (linux_low_disable_btrace): New.
2014-01-16record-btrace: extend unwinderMarkus Metzger1-0/+2
Extend the always failing unwinder to provide the PC based on the call structure detected in the branch trace. The unwinder supports normal frames and tailcall frames. Inline frames are not supported. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record.h (record_btrace_frame_unwind) (record_btrace_tailcall_frame_unwind): New declarations. * dwarf2-frame: Include record.h (dwarf2_frame_cfa): Throw an error for btrace frames. * record-btrace.c: Include hashtab.h. (btrace_get_bfun_name): New. (btrace_call_history): Call btrace_get_bfun_name. (struct btrace_frame_cache): New. (bfcache): New. (bfcache_hash, bfcache_eq, bfcache_new): New. (btrace_get_frame_function): New. (record_btrace_frame_unwind_stop_reason): Allow unwinding. (record_btrace_frame_this_id): Compute own id. (record_btrace_frame_prev_register): Provide PC, throw_error for all other registers. (record_btrace_frame_sniffer): Detect btrace frames. (record_btrace_tailcall_frame_sniffer): New. (record_btrace_frame_dealloc_cache): New. (record_btrace_frame_unwind): Add new functions. (record_btrace_tailcall_frame_unwind): New. (_initialize_record_btrace): Allocate cache. * btrace.c (btrace_clear): Call reinit_frame_cache. * NEWS: Announce it. testsuite/ * gdb.btrace/record_goto.exp: Add backtrace test. * gdb.btrace/tailcall.exp: Add backtrace test.
2014-01-16record-btrace: add record goto target methodsMarkus Metzger1-0/+2
2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_set_replay) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto): New. (init_record_btrace_ops): Initialize them. * NEWS: Announce it. testsuite/ * gdb.btrace/Makefile.in (EXECUTABLES): Add record_goto. * gdb.btrace/record_goto.c: New. * gdb.btrace/record_goto.exp: New. * gdb.btrace/x86-record_goto.S: New.
2014-01-16record-btrace: make ranges include begin and endMarkus Metzger1-0/+3
The "record function-call-history" and "record instruction-history" commands accept a range "begin, end". End is not included in both cases. Include it. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_insn_history_range): Include end. (record_btrace_insn_history_from): Adjust range. (record_btrace_call_history_range): Include end. (record_btrace_call_history_from): Adjust range. * NEWS: Announce changes. testsuite/ * gdb.btrace/function_call_history.exp: Update tests. * gdb.btrace/instruction_history.exp: Update tests. doc/ * gdb.texinfo (Process Record and Replay): Update documentation.
2014-01-16record-btrace: optionally indent function call historyMarkus Metzger1-0/+8
Add a new modifier /c to the "record function-call-history" command to indent the function name based on its depth in the call stack. Also reorder the optional fields to have the indentation at the very beginning. Prefix the insn range (/i modifier) with "inst ". Prefix the source line (/l modifier) with "at ". Change the range syntax from "begin-end" to "begin,end" to allow copy&paste to the "record instruction-history" and "list" commands. Adjust the respective tests and add new tests for the /c modifier. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record.h (enum record_print_flag) <record_print_indent_calls>: New. * record.c (get_call_history_modifiers): Recognize /c modifier. (_initialize_record): Document /c modifier. * record-btrace.c (btrace_call_history): Add btinfo parameter. Reorder fields. Optionally indent the function name. Update all users. * NEWS: Announce changes. testsuite/ * gdb.btrace/function_call_history.exp: Fix expected field order for "record function-call-history". Add new tests for "record function-call-history /c". * gdb.btrace/exception.cc: New. * gdb.btrace/exception.exp: New. * gdb.btrace/tailcall.exp: New. * gdb.btrace/x86-tailcall.S: New. * gdb.btrace/x86-tailcall.c: New. * gdb.btrace/unknown_functions.c: New. * gdb.btrace/unknown_functions.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo (Process Record and Replay): Document new /c modifier accepted by "record function-call-history". Add /i modifier to "record function-call-history" example.
2014-01-16record-btrace: start counting at oneMarkus Metzger1-0/+4
The record instruction-history and record-function-call-history commands start counting instructions at zero. This is somewhat unintuitive when we start navigating in the recorded instruction history. Start at one, instead. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.c (ftrace_new_function): Start counting at one. * record-btrace.c (record_btrace_info): Adjust number of calls and insns. * NEWS: Announce it. testsuite/ * gdb.btrace/instruction_history.exp: Update. * gdb.btrace/function_call_history.exp: Update.
2014-01-15gdb: Add a NEWS entry for ARM record/replay improvementsOmair Javaid1-0/+4
This patch adds a news entry about improvements in record-replay and reverse debugging support for arm*-linux* targets. gdb/ChangeLog: 2014-01-15 Omair Javaid <omair.javaid@linaro.org> * NEWS: Add note on improved process record-replay on arm*-linux* targets.
2014-01-08Update NEWS post GDB 7.7 branch creation.Joel Brobecker1-1/+3
gdb/ChangeLog: * NEWS: Create a new section for the next release branch. Rename the section of the current branch, now that it has been cut.
2014-01-07[python] Add gdb.Type.name attribute.Joel Brobecker1-0/+1
Consider the following declarations: typedef long our_time_t; our_time_t current_time = 1384395743; The purpose of this patch is to allow the use of a pretty-printer for variables of type our_time_t. Normally, pretty-printing sniffers use the tag name in order to determine which, if any, pretty-printer should be used. But in the case above, the tag name is not set, since it does not apply to integral types. This patch extends the gdb.Type list of attributes to also include the name of the type, thus allowing the sniffer to match against that name. With that change, I was able to write a pretty-printer which displays our variable as follow: (gdb) print current_time $1 = Thu Nov 14 02:22:23 2013 (1384395743) gdb/ChangeLog: * python/py-type.c (typy_get_name): New function. (type_object_getset): Add entry for attribute "name". * NEWS: Add entry mentioning this new attribute. gdb/doc/ChangeLog: * gdb.texinfo (Types In Python): Document new attribute Types.name. gdb/testsuite: * gdb.python/py-pp-integral.c: New file. * gdb.python/py-pp-integral.py: New file. * gdb.python/py-pp-integral.exp: New file. Tested on x86_64-linux.
2013-12-28Implement SystemTap SDT probe support for AArch64Sergio Durigan Junior1-0/+2
This commit implements the needed bits for SystemTap SDT probe support on AArch64 architectures. First, I started by looking at AArch64 assembly specification and filling the necessary options on gdbarch's stap machinery in order to make the generic asm parser (implemented in stap-probe.c) recognize AArch64's asm. After my last patch for the SystemTap SDT API, which extends it in order to accept multiple prefixes and suffixes, this patch became simpler. I also followed Marcus suggestion and did not shared code between 32- and 64-bit ARM. Tom asked me in a previous message how I did my tests. I believe I replied that, but just in case: I ran the tests on gdb.base/stap-probe.exp by hand. I also managed to run the tests on real hardware, and they pass without regressions. 2013-12-28 Sergio Durigan Junior <sergiodj@redhat.com> PR tdep/15653 * NEWS: Mention SystemTap SDT probe support for AArch64 GNU/Linux. * aarch64-linux-tdep.c: Include necessary headers for parsing of SystemTap SDT probes. (aarch64_stap_is_single_operand): New function. (aarch64_stap_parse_special_token): Likewise. (aarch64_linux_init_abi): Declare SystemTap SDT probe argument prefixes and suffixes. Initialize gdbarch with them.
2013-12-122013-12-12 Siva Chandra Reddy <sivachandra@google.com>Siva Chandra1-0/+2
PR python/16113 * NEWS (Python Scripting): Add entry for the new feature and the new attribute of gdb.Field objects. * python/py-type.c (gdbpy_is_field): New function (convert_field): Add 'parent_type' attribute to gdb.Field objects. * python/py-value.c (valpy_getitem): Allow subscript value to be a gdb.Field object. (value_has_field): New function (get_field_flag): New function * python/python-internal.h (gdbpy_is_field): Add declaration. testsuite/ * gdb.python/py-value-cc.cc: Improve test case. * gdb.python/py-value-cc.exp: Add new tests to test usage of gdb.Field objects as subscripts on gdb.Value objects. doc/ * gdb.texinfo (Values From Inferior): Add a note about using gdb.Field objects as subscripts on gdb.Value objects. (Types In Python): Add description about the new attribute "parent_type" of gdb.Field objects.
2013-12-10GDB/MI: Document support for -exec-run --start in -list-featuresJoel Brobecker1-1/+3
This adds "exec-run-start-option" in the output of the -list-features commands, allowing front-ends to easily determine whether -exec-run supports the --start option. gdb/ChangeLog: * mi/mi-main.c (mi_cmd_list_features): add "exec-run-start-option". * NEWS: Expand the entry documenting the new -exec-run --start option to mention the corresponding new entry in the output of "-list-features". gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Miscellaneous Commands): Document the new "exec-run-start-option" entry in the output of the "-list-features" command. gdb/testsuite/ChangeLog: * gdb.mi/mi-start.exp: Add test verifying that -list-features contains "exec-run-start-option".
2013-12-03Documentation for MPX.Walfred Tedeschi1-0/+2
2013-11-20 Walfred Tedeschi <walfred.tedeschi@intel.com> * NEWS: Add section for Intel(R) Architecture Instructions Extesions mentioning MPX. doc/ * gdb.texinfo (i386 Features): Add MPX feature registers. (x86 Specific featuresx86 Architecture-specific Issues): Adds a subsubsection for MPX and describes the display of the boundary registers. Signed-off-by: Walfred Tedeschi <walfred.tedeschi@intel.com>
2013-12-03NEWS: Extend documentation of the new GDB/MI --language option.Joel Brobecker1-0/+2
This patch extends a bit the news entry we added which documents general support of the --language option, to add a small reference to the associated entry which was also added to the "-list-features" command output. gdb/ChangeLog: * NEWS: Mention "-list-features" in the entry documenting the support for the "--language" option.
2013-12-03Resurrect gdb-add-index as a contrib scriptSamuel Bronson1-0/+3
This includes changes made in Fedora's gdb packaging[1], Doug's robustness patch[2] from before gdb-add-index was dropped, some corrections, and some more changes Doug accumulated in the meantime[3]. [1]: http://pkgs.fedoraproject.org/cgit/gdb.git/log/gdb-gdb-add-index-script.patch?id=fe74423b0812bae6d7bb027584e401a2ac37d24d [2]: https://sourceware.org/ml/gdb-patches/2010-09/msg00130.html [3]: https://sourceware.org/ml/gdb-patches/2013-11/msg00297.html It would be a good idea to mention the existance of this script in (info "(gdb) Index Files"), but I'm boycotting invariant sections/cover texts because non-free docs are a PITA, so somebody else would need to do that. Summary of previous activity: 97924a9 Actual removal c29c521 Attempted removal (accidentally left gdb-add-index.sh in place) c2bbed2 Addition
2013-12-03Add "undefined-command" error code at end of ^error result...Joel Brobecker1-0/+6
... when trying to execute an undefined GDB/MI command. When trying to execute a GDB/MI command which does not exist, the current error result record looks like this: -unsupported ^error,msg="Undefined MI command: unsupported" The only indication that the command does not exist is the error message. It would be a little fragile for a consumer to rely solely on the contents of the error message in order to determine whether a command exists or not. This patch improves the situation by adding concept of error code, starting with one well-defined error code ("undefined-command") identifying errors due to a non-existant command. Here is the new output: -unsupported ^error,msg="Undefined MI command: unsupported",code="undefined-command" This error code is only displayed when the corresponding error condition is met. Otherwise, the error record remains unchanged. For instance: -symbol-list-lines foo.adb ^error,msg="-symbol-list-lines: Unknown source file name." For frontends to be able to know whether they can rely on this variable, a new entry "undefined-command-error-code" has been added to the "-list-features" command. Another option would be to always generate an error="..." variable (for the default case, we could decide for instance that the error code is the empty string). But it seems more efficient to provide that info in "-list-features" and then only add the error code when meaningful. gdb/ChangeLog: (from Pedro Alves <palves@redhat.com>) (from Joel Brobecker <brobecker@adacore.com>) * exceptions.h (enum_errors) <UNDEFINED_COMMAND_ERROR>: New enum. * mi/mi-parse.c (mi_parse): Throw UNDEFINED_COMMAND_ERROR instead of a regular error when the GDB/MI command does not exist. * mi/mi-main.c (mi_cmd_list_features): Add "undefined-command-error-code". (mi_print_exception): Print an "undefined-command" error code if EXCEPTION.ERROR is UNDEFINED_COMMAND_ERROR. * NEWS: Add entry documenting the new "code" variable in "^error" result records. gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Result Records): Fix the syntax of the "^error" result record concerning the error message. Document the error code that may also be part of that result record. (GDB/MI Miscellaneous Commands): Document the "undefined-command-error-code" element in the output of the "-list-features" GDB/MI command. gdb/testsuite/ChangeLog: * gdb.mi/mi-undefined-cmd.exp: New testcase.
2013-12-03New GDB/MI command "-info-gdb-mi-command"Joel Brobecker1-0/+3
This patch adds a new GDB/MI command meant for graphical frontends trying to determine whether a given GDB/MI command exists or not. Examples: -info-gdb-mi-command unsupported-command ^done,command={exists="false"} (gdb) -info-gdb-mi-command symbol-list-lines ^done,command={exists="true"} (gdb) At the moment, this is the only piece of information that this command returns. Eventually, and if needed, we can extend it to provide command-specific pieces of information, such as updates to the command's syntax since inception. This could become, for instance: -info-gdb-mi-command symbol-list-lines ^done,command={exists="true",features=[]} (gdb) -info-gdb-mi-command catch-assert ^done,command={exists="true",features=["conditions"]} In the first case, it would mean that no extra features, while in the second, it announces that the -catch-assert command in this version of the debugger supports a feature called "condition" - exact semantics to be documented with combined with the rest of the queried command's documentation. But for now, we start small, and only worry about existance. And to bootstrap the process, I have added an entry in the output of the -list-features command as well ("info-gdb-mi-command"), allowing the graphical frontends to go through the following process: 1. Send -list-features, collect info from there as before; 2. Check if the output contains "info-gdb-mi-command". If it does, then support for various commands can be queried though -info-gdb-mi-command. Newer commands will be expected to always be checked via this new -info-gdb-mi-command. gdb/ChangeLog: * mi/mi-cmds.h (mi_cmd_info_gdb_mi_command): Declare. * mi/mi-cmd-info.c (mi_cmd_info_gdb_mi_command): New function. * mi/mi-cmds.c (mi_cmds): Add -info-gdb-mi-command command. * mi/mi-main.c (mi_cmd_list_features): Add "info-gdb-mi-command" field to output of "-list-features". * NEWS: Add entry for new -info-gdb-mi-command. gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Miscellaneous Commands): Document the new -info-gdb-mi-command GDB/MI command. Document the meaning of "-info-gdb-mi-command" in the output of -list-features. gdb/testsuite/ChangeLog: * gdb.mi/mi-i-cmd.exp: New file.
2013-11-24set/show code-cacheYao Qi1-0/+5
Similar to stack cache, in this patch, we add TARGET_OBJECT_CODE_MEMORY to read code from target and add a new option "set code-cache on|off" to optimize code accesses by using the target memory cache. In V4: - Remove "without affecting correctness" from NEWS and doc. - Replace "ON" with "on" in doc. - "access" -> "accesses". In V3: - Rename functions and variables. - Update command help, doc and NEWS entry. - Invalidate cache on option transitions, to align with the behaviour of "stack-cache". Since cache invalidation is transparent to users, users don't know option "stack-cache" transitions cause code cache invalidation. V2 was reviewed by Doug. There are some changes in V3, so I post it here. gdb: 2013-11-24 Yao Qi <yao@codesourcery.com> * NEWS: Add note on new "set code-cache" option. * target-dcache.c (code_cache_enabled_1): New variable. (code_cache_enabled): New variable. (show_code_cache, set_code_cache): New function. (code_cache_enabled_p): New function. (_initialize_target_dcache): Register command. * target-dcache.h (code_cache_enabled_p): Declare. * target.c (memory_xfer_partial_1):Handle TARGET_OBJECT_CODE_MEMORY and code_cache_enabled. (target_read_code): New function. * target.h (enum target_object) <TARGET_OBJECT_CODE_MEMORY>: New. (target_read_code): Declare. gdb/doc: 2013-11-24 Yao Qi <yao@codesourcery.com> * gdb.texinfo (Caching Remote Data): Document new "set/show stack-cache" option.
2013-11-15gdb/NEWS: Fix typoJan Kratochvil1-1/+1
gdb/ 2013-11-15 Jan Kratochvil <jan.kratochvil@redhat.com> * NEWS (Changes in GDB 7.5) (New commands) (explore): Fix typo.
2013-11-14GDB/MI: Add new "--language LANG" command option.Joel Brobecker1-0/+2
Frontend sometimes need to evaluate expressions that are language-specific. For instance, Eclipse uses the following expression to determine the size of an address on the target: -data-evaluate-expression "sizeof (void*)" Unfortunately, if the main of the program being debugged is not C, this may not work. For instance, if the main is in Ada, you get... -data-evaluate-expression "sizeof (void*)" ^error,msg="No definition of \"sizeof\" in current context." ... and apparently decides to stop the debugging session as a result. The recommendation sent was to specifically set the language to C before trying to evaluate the expression. Something such as: 1. save current language 2. set language c 3. -data-evaluate-expression "sizeof (void*)" 4. Restore language This has the same disadvantages as the ones outlined in the "Context Management" section of the GDB/MI documentation regarding setting the current thread or the current frame, thus recommending the use of general command-line switches such as --frame, or --thread instead. This patch follows the same steps for the language, adding a similar new command option: --language LANG. Example of use: -data-evaluate-expression --language c "sizeof (void*)" ^done,value="4" gdb/ChangeLog: * mi/mi-parse.h (struct mi_parse) <language>: New field. * mi/mi-main.c (mi_cmd_execute): Temporarily set language to PARSE->LANGUAGE during command execution, if set. * mi/mi-parse.c: Add "language.h" #include. (mi_parse): Add parsing of "--language" command option. * NEWS: Add entry mentioning the new "--language" command option. gdb/testsuite/ChangeLog: * gdb.mi/mi-language.exp: New file. gdb/doc/ChangeLog: * gdb.texinfo (Show): Add xref anchor for "show language" command. (Context management): Place current subsection text into its own subsubsection. Add new subsubsection describing the "--language" command option.
2013-11-12Document "info exceptions" and "-info-ada-exception" new commands.Joel Brobecker1-0/+9
gdb/doc/ChangeLog: * gdb.texinfo (Ada): Add entry in menu for new "Ada Exceptions" node. (Ada Exceptions): New node. (GDB/MI): Add entry in menu for new "GDB/MI Ada Exceptions Commands" node. (GDB/MI Ada Exceptions Commands): New node. (GDB/MI Miscellaneous Commands): Document new "info-ada-exceptions" field in the output of the "-list-features" command. * NEWS: Add entry for the new "info exceptions" CLI command, and for the new "-info-ada-exceptions" GDB/MI command.
2013-11-112013-11-11 Phil Muldoon <pmuldoon@redhat.com>Phil Muldoon1-0/+1
PR python/15629 * NEWS: Add linetable feature. * Makefile.in (SUBDIR_PYTHON_OBS): Add py-linetable entries. * python/py-linetable.c: New file. * python/py-symtab.c (stpy_get_linetable): New function. * python/python-internal.h (symtab_to_linetable_object): Declare. (gdbpy_initialize_linetable): Ditto. * python/python.c (_initialize_python): Call gdbpy_initialize_linetable. 2013-11-11 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-linetable.S: New file. * gdb.python/py-linetable.c: New file. * gdb.python/py-linetable.exp: New file. 2013-11-11 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Symbol Tables In Python): Add linetable method entry. (Line Tables In Python): New node.
2013-11-08Change "set debug symtab-create" to take a verbosity level.Doug Evans1-0/+4
* NEWS: Mention that "set debug symtab-create" now accepts a verbosity level. * buildsym.c (end_symtab_from_static_block): Call set_symtab_primary to set the symtab's primary flag. * jit.c (finalize_symtab): Ditto. * mdebugread.c (psymtab_to_symtab_1): Ditto. * symfile.c (allocate_symtab): Only print debugging messages for symtab_create_debug levels 2 and higher. * symtab.c (symtab_create_debug): Change type to unsigned int. (set_symtab_primary): New function. (_initialize_symtab): Change "set debug symtab-create" to a zuinteger option. * symtab.h (set_symtab_primary): Declare. (symtab_create_debug): Update decl. doc/ * gdb.texinfo (Debugging Output): Update text for "set debug symtab-create".
2013-11-072013-11-07 Phil Muldoon <pmuldoon@redhat.com>Phil Muldoon1-0/+1
* python/py-breakpoint.c (bppy_get_temporary): New function. (bppy_init): New keyword: temporary. Parse it and set breakpoint to temporary if True. 2013-11-07 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-breakpoint.exp: Add temporary breakpoint tests. 2013-11-07 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Breakpoints In Python): Document temporary option in breakpoint constructor, and add documentation to the temporary attribute.
2013-10-29Documentation for the remove-symbol-file command.Nicolas Blanc1-0/+6
2013-10-29 Nicolas Blanc <nicolas.blanc@intel.com> * NEWS: Add description of the remove-symbol-file command. gdb/doc * gdb.texinfo (Commands to Specify Files): Add description of the remove-symbol-file command. Signed-off-by: Nicolas Blanc <nicolas.blanc@intel.com>
2013-10-25Make STARTUP_WITH_SHELL a runtime toggle -- add new "set/show ↵Pedro Alves1-0/+5
startup-with-shell" option. Occasionaly we hear about people having problems with GDB not being able to start programs (with "run"/"start"). GDB spawns a shell to start the program, and most often, it'll be the case that the problem is actually with the user's shell setup. GDB has code to disable the use of the shell to start programs. That's the STARTUP_WITH_SHELL macro that native targets could set to 0 in their nm.h file (though no target actually uses it nowadays). This patch makes that setting a run-time knob instead. This will be useful to quickly diagnose such shell issues, and might also come in handy at other times (such as when debugging the shell itself, if you don't have a different shell handy). gdb/ 2013-10-24 Pedro Alves <palves@redhat.com> * NEWS (New options): Mention set/show startup-with-shell. * config/alpha/nm-osf3.h (START_INFERIOR_TRAPS_EXPECTED): Set to 2 instead of 3. * fork-child.c (fork_inferior, startup_inferior): Handle 'set startup-with-shell'. (show_startup_with_shell): New function. (_initialize_fork_child): Register the set/show startup-with-shell commands. * inf-ptrace.c (inf_ptrace_create_inferior): Remove comment. * inf-ttrace.c (inf_ttrace_him): Remove comment. * procfs.c (procfs_init_inferior): Remove comment. * infcmd.c (startup_with_shell): New global. * inferior.h (startup_with_shell): Declare global. (STARTUP_WITH_SHELL): Delete. (START_INFERIOR_TRAPS_EXPECTED): Set to 1 by default instead of 2. gdb/doc/ 2013-10-24 Pedro Alves <palves@redhat.com> * gdb.texinfo (Starting): Document set/show startup-with-shell.
2013-10-11Document the -catch-assert and -catch-exception new GDB/MI commands.Joel Brobecker1-0/+3
This patch adds documentation for the new GDB/MI commands "-catch-assert" and "-catch-exception", meant to provide the same functionality as the "catch assert", "catch exception" and "catch exception unhandled" CLI commands. In the GDB Manual, there was already a section for catchpoint comments, so that seemed like a natural place to document the new commands. But commands related to a given concept seem to have traditionally been organized alphabetically, and I didn't want future commands to break down logical pairing of various commands. For instance, "-catch-load" and "-catch-unload" are quite "distant" from each other, and it is easy to imagine a new comment which would alphabetically fall in between, causing them to be separated. So I introduced subsections to prevent that from happening. gdb/ChangeLog: * NEWS: Add entry documenting the new "-catch-assert" and "-catch-exception" GDB/MI commands. gdb/doc/ChangeLog: * gdb.texinfo (Shared Library GDB/MI Catchpoint Commands): New subsection inside which the "-catch-load" and "-catch-unload" commands documentation is now placed. (Ada Exception GDB/MI Catchpoint Commands): New subsection documenting the "-catch-assert" and "-catch-exception" new GDB/MI commands.
2013-10-10Rename "set/show remotebaud" command into "set/show serial baud"Joel Brobecker1-0/+5
This patch renames the "set/show remotebaud" commands into "set/show serial baud", and moves its implementation into serial.c. It also moves the "baud_rate" global from top.c to serial.c, where the new code is being added (the alternative was to add an include of target.h). And to facilitate the transition to the new setting name, this patch also preserves the old commands, and marks them as deprecated to alert the users of the change. gdb/ChangeLog: * cli/cli-cmds.c (show_baud_rate): Moved to serial.c as serial_baud_show_cmd. (_initialize_cli_cmds): Delete the code creating the "set/show remotebaud" commands. * serial.c (baud_rate): Move here from top.c. (serial_baud_show_cmd): Move here from cli/cli-cmds.c. (_initialize_serial): Create "set/show serial baud" commands. Add "set/show remotebaud" command aliases. * top.c (baud_rate): Moved to serial.c. * NEWS: Document the new "set/show serial baud" commands, replacing "set/show remotebaud". gdb/doc/ChangeLog: * gdb.texinfo: Replace "set remotebaud" and "show remotebaud" by "set serial baud" and "show serial baud" (resp) throughout.
2013-10-07This patch adds a new convenience variable called "$_exitsignal", whichSergio Durigan Junior1-0/+4
will hold the signal number when the inferior terminates due to the uncaught signal. I've made modifications on infrun.c:handle_inferior_event such that $_exitcode gets cleared when the inferior signalled, and vice-versa. This assumption was made because the variables are mutually exclusive, i.e., when the inferior terminates because of an uncaught signal it is not possible for it to return. I have also made modifications such that when a corefile is loaded, $_exitsignal gets set to the uncaught signal that "killed" the inferior, and $_exitcode is cleared. The patch also adds a NEWS entry, documentation bits, and a testcase. The documentation entry explains how to use $_exitsignal and $_exitcode in a GDB script, by making use of the new $_isvoid convenience function. gdb/ 2013-10-06 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS: Mention new convenience variable $_exitsignal. * corelow.c (core_open): Reset exit convenience variables. Set $_exitsignal to the uncaught signal which generated the corefile. * infrun.c (handle_inferior_event): Reset exit convenience variables. Set $_exitsignal for TARGET_WAITKIND_SIGNALLED. (clear_exit_convenience_vars): New function. * inferior.h (clear_exit_convenience_vars): New prototype. gdb/testsuite/ 2013-10-06 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/corefile.exp: Test whether $_exitsignal is set and $_exitcode is void when opening a corefile. * gdb.base/exitsignal.exp: New file. * gdb.base/segv.c: Likewise. * gdb.base/normal.c: Likewise. gdb/doc/ 2013-10-06 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (Convenience Variables): Document $_exitsignal. Update entry for $_exitcode.
2013-10-05 Add support for DWP file format version 2.Doug Evans1-0/+3
* NEWS: Mention support for DWP file format version 2. * dwarf2read.c (dwarf2_section_info): Convert asection field to a union of asection, containing_section. New fields virtual_offset and is_virtual. Change type of readin filed from int to char. (dwo_sections, dwo_file): Tweak comments. (dwp_v2_section_ids): New enum. (dwp_sections): New fields abbrev, info, line, loc, macinfo, macro, str_offsets, types. (virtual_v1_dwo_sections): Renamed from virtual_dwo_sections. All uses updated. (virtual_v2_dwo_sections): New struct. (dwp_hash_table): New fields version, nr_columns. Change type of section_pool field to a union. (dwp_file): New field version. (dwarf2_has_info): Check for virtual sections. (get_containing_section): New function. (get_section_bfd_owner, get_section_bfd_section): Call it. (dwarf2_locate_sections): Update. (dwarf2_section_empty_p): Update. (dwarf2_read_section): Handle virtual sections. (locate_dwz_sections): Update. (create_dwp_hash_table): Document and handle V2 format. (locate_v1_virtual_dwo_sections): Renamed from locate_virtual_dwo_sections and update. All callers updated. (create_dwo_unit_in_dwp_v1): Renamed from create_dwo_in_dwp. Delete arg htab. Rename arg section_index to unit_index. All callers updated. (MAX_NR_V1_DWO_SECTIONS): Renamed from MAX_NR_DWO_SECTIONS. All uses updated. (create_dwp_v2_section, create_dwo_unit_in_dwp_v2): New functions. (lookup_dwo_unit_in_dwp): Add V2 support. (dwarf2_locate_dwo_sections): Update. (dwarf2_locate_common_dwp_sections): Renamed from dwarf2_locate_dwp_sections and update. All callers updated. (dwarf2_locate_v2_dwp_sections): New function. (open_and_init_dwp_file): Add V2 support. (read_str_index): New locals str_section, str_offsets_section.
2013-10-04Add support for --start option in -exec-run GDB/MI command.Joel Brobecker1-0/+5
gdb/ChangeLog: * mi/mi-main.c (run_one_inferior): Add function description. Make ARG a pointer to an integer whose value determines whether we should "run" or "start" the program. (mi_cmd_exec_run): Add handling of the "--start" option. Reject all other command-line options. * NEWS: Add entry for "-exec-run"'s new "--start" option. gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Program Execution): Document "-exec-run"'s new "--start" option. gdb/testsuite/ChangeLog: * gdb.mi/mi-start.c, gdb.mi/mi-start.exp: New files.
2013-10-02Print registers not saved in the frame as "<not saved>" instead of ↵Pedro Alves1-0/+14
"<optimized out>". Currently, in some scenarios, GDB prints <optimized out> when printing outer frame registers. An <optimized out> register is a confusing concept. What this really means is that the register is call-clobbered, or IOW, not saved by the callee. This patch makes GDB say that instead. Before patch: (gdb) p/x $rax $1 = <optimized out> (gdb) info registers rax rax <optimized out> After patch: (gdb) p/x $rax $1 = <not saved> (gdb) info registers rax rax <not saved> However, if for some reason the debug info describes a variable as being in such a register (**), we still want to print <optimized out> when printing the variable. IOW, <not saved> is reserved for inspecting registers at the machine level. The patch uses lval_register+optimized_out to encode the not saved registers, and makes it so that optimized out variables always end up in !lval_register values. ** See <https://sourceware.org/ml/gdb-patches/2012-08/msg00787.html>. Current/recent enough GCC doesn't mark variables/arguments as being in call-clobbered registers in the ranges corresponding to function calls, while older GCCs did. Newer GCCs will just not say where the variable is, so GDB will end up realizing the variable is optimized out. frame_unwind_got_optimized creates not_lval optimized out registers, so by default, in most cases, we'll see <optimized out>. value_of_register is the function eval.c uses for evaluating OP_REGISTER (again, $pc, etc.), and related bits. It isn't used for anything else. This function makes sure to return lval_register values. The patch makes "info registers" and the MI equivalent use it too. I think it just makes a lot of sense, as this makes it so that when printing machine registers ($pc, etc.), we go through a central function. We're likely to need a different encoding at some point, if/when we support partially saved registers. Even then, I think value_of_register will still be the spot to tag the intention to print machine register values differently. value_from_register however may also return optimized out lval_register values, so at a couple places where we're computing a variable's location from a dwarf expression, we convert the resulting value away from lval_register to a regular optimized out value. Tested on x86_64 Fedora 17 gdb/ 2013-10-02 Pedro Alves <palves@redhat.com> * cp-valprint.c (cp_print_value_fields): Adjust calls to val_print_optimized_out. * jv-valprint.c (java_print_value_fields): Likewise. * p-valprint.c (pascal_object_print_value_fields): Likewise. * dwarf2loc.c (dwarf2_evaluate_loc_desc_full) <DWARF_VALUE_REGISTER>: If the register was not saved, return a new optimized out value. * findvar.c (address_from_register): Likewise. * frame.c (put_frame_register): Tweak error string to say the register was not saved, rather than optimized out. * infcmd.c (default_print_one_register_info): Adjust call to val_print_optimized_out. Use value_of_register instead of get_frame_register_value. * mi/mi-main.c (output_register): Use value_of_register instead of get_frame_register_value. * valprint.c (valprint_check_validity): Likewise. (val_print_optimized_out): New value parameter. If the value is lval_register, print <not saved> instead. (value_check_printable, val_print_scalar_formatted): Adjust calls to val_print_optimized_out. * valprint.h (val_print_optimized_out): New value parameter. * value.c (struct value) <optimized_out>: Extend comment. (error_value_optimized_out): New function. (require_not_optimized_out): Use it. Use a different string for lval_register values. * value.h (error_value_optimized_out): New declaration. * NEWS: Mention <not saved>. gdb/testsuite/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.dwarf2/dw2-reg-undefined.exp <pattern_rax_rbx_rcx_print, pattern_rax_rbx_rcx_info>: Set to "<not saved>". * gdb.mi/mi-reg-undefined.exp (opt_out_pattern): Delete. (not_saved_pattern): New. Replace use of the former with the latter. gdb/doc/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.texinfo (Registers): Expand description of saved registers in frames. Explain <not saved>.
2013-09-25 New option "set debug symfile on".Doug Evans1-0/+5
* NEWS: Mention "set debug symfile". * Makefile.in (SFILES): Add symfile-debug.c. (COMMON_OBS): Add symfile-debug.o. * elfread.c (elf_symfile_read): Use objfile_set_sym_fns to set the objfile's symbol functions. * objfiles.h (objfile_set_sym_fns): Declare. * symfile-debug.c: New file. * symfile.c (syms_from_objfile_1): Use objfile_set_sym_fns to set the objfile's symbol functions. (reread_symbols): Ditto.
2013-09-24Remove a.out NetBSD and OpenBSD hostsJan Kratochvil1-0/+13
gdb/ 2013-09-21 Jan Kratochvil <jan.kratochvil@redhat.com> Remove a.out NetBSD and OpenBSD hosts. * NEWS (Removed native configurations): New. * config/arm/nbsdaout.mh: Remove. * config/i386/nbsdaout.mh: Remove. * config/i386/obsdaout.mh: Remove. * config/m68k/nbsdaout.mh: Remove. * config/sparc/nbsdaout.mh: Remove. * config/vax/nbsdaout.mh: Remove. * configure.host (arm*-*-netbsd*, i[34567]86-*-netbsd*) (i[34567]86-*-openbsd[0-2].*, i[34567]86-*-openbsd3.[0-3]) (m68*-*-netbsd*, sparc-*-netbsd*, vax-*-netbsd*): Add them to obsolete error. (arm*-*-netbsd*, i[34567]86-*-netbsd*, i[34567]86-*-openbsd[0-2].*) (i[34567]86-*-openbsd3.[0-3], m68*-*-netbsd*, sparc-*-netbsdaout*) (sparc-*-netbsd*, vax-*-netbsd*): Remove.
2013-09-16Based on the discussion at:Sergio Durigan Junior1-0/+8
<https://sourceware.org/ml/gdb-patches/2013-09/msg00301.html> <https://sourceware.org/ml/gdb-patches/2013-09/msg00383.html> This patch adds a new convenience function called $_isvoid, whose only purpose is to check whether an expression is void or not. This became necessary because the new convenience variable $_exitsignal (not yet approved) has a mutual exclusive behavior with $_exitcode, i.e., when one is "defined" (i.e., non-void), the other is cleared (i.e., becomes void). Doug wanted a way to identify which variable to use, and checking for voidness is the obvious solution. It is worth mentioning that my first attempt, after a conversation with Doug, was to actually implement a new $_isdefined() convenience function. I would do that (for convenience variables) by calling lookup_only_internalvar. However, I found a few problems: - Whenever I called $_isdefined ($variable), $variable became defined (with a void value), and $_isdefined always returned true. - Then, I tried to implement $_isdefined ("variable"), and do the "$" + "variable" inside GDB, thus making it impossible for GDB to create the convenience variable. However, it was hard to extract the string without having to mess with values and their idiossincrasies. Therefore, I decided to abandon this attempt (specially because I didn't want to spend too much time struggling with it). Anyway, after talking to Doug again we decided that it would be easier to implement $_isvoid, and this will probably help in cases like <http://stackoverflow.com/questions/3744554/testing-if-a-gdb-convenience-variable-is-defined>. I wrote a NEWS entry for it, and some new lines on the documentation. gdb/ 2013-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS: Mention new convenience function $_isvoid. * value.c (isvoid_internal_fn): New function. (_initialize_values): Add new convenience function $_isvoid. gdb/doc/ 2013-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (Convenience Functions): Mention new convenience function $_isvoid. gdb/testsuite/ 2013-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/gdbvars.c (foo_void): New function. (foo_int): Likewise. * gdb.base/gdbvars.exp (test_convenience_functions): New function. Call it.
2013-09-13gdb/ChangeLog:Ulrich Weigand1-0/+4
2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com> * NEWS: Mention TDB support. * features/s390-tdb.xml: New file. * features/s390-te-linux64.xml: New file. * features/s390x-te-linux64.xml: New file. * features/Makefile (WHICH): Add new tdescs above. (s390-te-linux64-expedite): Set. (s390x-te-linux64-expedite): Set. * features/s390-te-linux64.c: New file (generated). * features/s390x-te-linux64.c: New file (generated). * regformats/s390-te-linux64.dat: New file (generated). * regformats/s390x-te-linux64.dat: New file (generated). * s390-tdep.h (HWCAP_S390_HIGH_GPRS): Define. (HWCAP_S390_TE): Likewise. (S390_TDB_DWORD0_REGNUM): Likewise. (S390_TDB_DWORD0_REGNUM): Likewise. (S390_TDB_ABORT_CODE_REGNUM): Likewise. (S390_TDB_CONFLICT_TOKEN_REGNUM): Likewise. (S390_TDB_ATIA_REGNUM): Likewise. (S390_TDB_R0_REGNUM): Likewise. (S390_TDB_R1_REGNUM): Likewise. (S390_TDB_R2_REGNUM): Likewise. (S390_TDB_R3_REGNUM): Likewise. (S390_TDB_R4_REGNUM): Likewise. (S390_TDB_R5_REGNUM): Likewise. (S390_TDB_R6_REGNUM): Likewise. (S390_TDB_R7_REGNUM): Likewise. (S390_TDB_R8_REGNUM): Likewise. (S390_TDB_R9_REGNUM): Likewise. (S390_TDB_R10_REGNUM): Likewise. (S390_TDB_R11_REGNUM): Likewise. (S390_TDB_R12_REGNUM): Likewise. (S390_TDB_R13_REGNUM): Likewise. (S390_TDB_R14_REGNUM): Likewise. (S390_TDB_R15_REGNUM): Likewise. (S390_NUM_REGS): Increase. (S390_IS_TDBREGSET_REGNUM): New macro. (s390_regmap_tdb): Declare. (s390_sizeof_tdbregset): Define. (tdesc_s390_te_linux64): Declare. (tdesc_s390x_te_linux64): Likewise. * s390-tdep.c: Add includes for "auxv.h", <elf.h>, "features/s390-te-linux64.c", and "features/s390x-te-linux64.c". (s390_regmap_tdb): New regmap. (s390_supply_tdb_regset): New function. (s390_tdb_regset): New regset. (s390_linux64v2_regset_sections): Add TDB regset to list. (s390x_linux64v2_regset_sections): Likewise. (s390_regset_from_core_section): Recognize TDB core note section. (s390_core_read_description): If HWCAP indicates TE support, select tdesc_s390_te_linux64 or tdesc_s390_s390x_te_linux64. (s390_gdbarch_init): Handle TDB regset. (_initialize_s390_tdep): Initialize new tdescs. * s390-nat.c (HWCAP_S390_HIGH_GPRS): Remove define. (have_regset_tdb): New variable. (s390_native_supply): Support register invalidation. (fetch_regset): Invalidate registers if ptrace yields ENODATA. (check_regset): Treat ENODATA as "regset exists". (s390_linux_fetch_inferior_registers): Add TDB. (s390_read_description): Check for TDB existence and select appropriate tdesc. * gdbserver/Makefile.in (clean): Add removal of new makefile targets. (s390-te-linux64.c): New makefile target. (s390x-te-linux64.c): Likewise. * gdbserver/configure.srv (srv_regobj): Append new objects s390-te-linux64.o and s390x-te-linux64.o. (srv_xmlfiles): Append new files s390-te-linux64.xml, s390x-te-linux64.xml, and s390-tdb.xml. * gdbserver/linux-s390-low.c (init_registers_s390_te_linux64): New declaration. (tdesc_s390_te_linux64): Likewise. (init_registers_s390x_te_linux64): Likewise. (tdesc_s390x_te_linux64): Likewise. (s390_check_regset): Treat ENODATA as "regset exists". (s390_arch_setup): Add TDB regset support. (initialize_low_arch): Initialize registers for new tdescs. gdb/doc/ChangeLog: 2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com> * gdb.texinfo (Decimal Floating Point format): Mention S/390. (Standard Target Features): Add new node to menu. (S/390 and System z Features): New node. gdb/testsuite/ChangeLog: 2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com> * gdb.arch/s390-tdbregs.c: New file. * gdb.arch/s390-tdbregs.exp: New file.
2013-09-022013-09-02 Tristan Gingold <gingold@adacore.com>Tristan Gingold1-0/+2
* NEWS: Add entry mentioning support for native Windows x64 SEH data. * amd64-windows-tdep.c: #include "objfiles.h", "frame-unwind.h", "coff/internal.h", "coff/i386.h", "coff/pe.h" and "libcoff.h". (struct amd64_windows_frame_cache): New struct. (amd64_windows_w2gdb_regnum): New global. (pc_in_range, amd64_windows_frame_decode_epilogue) (amd64_windows_frame_decode_insns, amd64_windows_find_unwind_info) (amd64_windows_frame_cache, amd64_windows_frame_prev_register) (amd64_windows_frame_this_id): New functions. (amd64_windows_frame_unwind): New static global. (amd64_windows_skip_prologue): New function. (amd64_windows_init_abi): Call frame_unwind_prepend_unwinder with amd64_windows_frame_unwind. Call set_gdbarch_skip_prologue with amd64_windows_skip_prologue.
2013-08-27Add options to skip unavailable localsYao Qi1-0/+4
This is the patch to add new option '--skip-unavailable' to MI commands '-stack-list-{locals, arguments, variables}'. This patch extends list_args_or_locals to add a new parameter 'skip_unavailable', and don't list locals or arguments if values are unavailable and 'skip_unavailable' is true. This is inspecting a trace frame (tfind mode), where only a few locals have been collected. -stack-list-locals, no switch vs new switch: -stack-list-locals --simple-values ^done,locals=[{name="array",type="unsigned char [2]"},{name="i",type="int",value="<unavailable>"}] -stack-list-locals --skip-unavailable --simple-values ^done,locals=[{name="array",type="unsigned char [2]"}] -stack-list-arguments, no switch vs new switch: -stack-list-arguments --simple-values ^done,stack-args=[frame={level="0",args=[{name="j",type="int",value="4"},{name="s",type="char *",value="<unavailable>"}]},frame={level="1",args=[]}] -stack-list-arguments --skip-unavailable --simple-values ^done,stack-args=[frame={level="0",args=[{name="j",type="int",value="4"}]},frame={level="1",args=[]}] -stack-list-variables, no switch vs new switch: -stack-list-variables --simple-values ^done,variables=[{name="j",arg="1",type="int",value="4"},{name="s",arg="1",type="char *",value="<unavailable>"},{name="array",type="unsigned char [2]"},{name="i",type="int",value="<unavailable>"}] -stack-list-variables --skip-unavailable --simple-values ^done,variables=[{name="j",arg="1",type="int",value="4"},{name="array",type="unsigned char [2]"}] tests are added to test these new options. gdb: 2013-08-27 Pedro Alves <pedro@codesourcery.com> Yao Qi <yao@codesourcery.com> * mi/mi-cmd-stack.c (list_args_or_locals): Adjust prototype. (parse_no_frames_option): Remove. (mi_cmd_stack_list_locals): Handle --skip-unavailable. (mi_cmd_stack_list_args): Adjust. (mi_cmd_stack_list_variables): Handle --skip-unavailable. (list_arg_or_local): Add new parameter 'skip_unavailable'. Return early if SKIP_UNAVAILABLE is true and ARG->val is unavailable. Caller update. (list_args_or_locals): New parameter 'skip_unavailable'. Handle it. * valprint.c (scalar_type_p): Rename to ... (val_print_scalar_type_p): ... this. Make extern. (val_print, value_check_printable): Adjust. * valprint.h (val_print_scalar_type_p): Declare. * value.c (value_entirely_unavailable): New function. * value.h (value_entirely_unavailable): Declare. * NEWS: Mention the new option "--skip-unavailable" to MI commands '-stack-list-locals', '-stack-list-arguments' and '-stack-list-variables'. gdb/doc: 2013-08-27 Pedro Alves <pedro@codesourcery.com> Yao Qi <yao@codesourcery.com> * gdb.texinfo (GDB/MI Stack Manipulation) <-stack-list-locals>: Document new --skip-unavailable option. <-stack-list-variables>: Document new --skip-unavailable option. gdb/testsuite: 2013-08-27 Yao Qi <yao@codesourcery.com> * gdb.trace/entry-values.exp: Test unavailable entry value is not shown when option '--skip-unavailable' is specified. * gdb.trace/mi-trace-unavailable.exp (test_trace_unavailable): Add tests for new option '--skip-unavailable'.
2013-08-26 * NEWS: Document "mt print objfiles" now takes optional regexp.Doug Evans1-0/+2
* symmisc.c (maintenance_print_objfiles): Argument is now an optional regexp of objfiles to print. (_initialize_symmisc): Update doc string for "mt print objfiles". doc/ * gdb.texinfo (Maintenance Commands): "maint print objfiles" now takes an optional regexp.
2013-08-22[Committing the `catch syscall' patch for ARM, from Samuel Bronson.]Sergio Durigan Junior1-0/+2
This time, it passes all the tests and comes with a nearly complete XML file (plus a script that can nearly regenerate the XML file). (I elected to leave out __ARM_NR_cmpxchg, since it has dire warnings to the effect that the only pieces of code that should be aware of it are the implementation and the __kuser_cmpxchg code in entry-armv.S.) gdb/ 2013-08-14 Samuel Bronson <naesten@gmail.com> ARM Linux support for `catch syscall'. * syscalls/arm-linux.py: New file. * syscalls/arm-linux.xml: Likewise. * arm-linux-tdep.c (arm_linux_get_syscall_number): New function. (arm_linux_init_abi): Register the new function and syscall xml file. * data-directory/Makefile.in: Install the new syscall xml file. * NEWS: Brag about this. gdb/testsuite/ 2013-08-14 Samuel Bronson <naesten@gmail.com> ARM Linux support for `catch syscall'. * gdb.base/catch-syscall.exp: Test this on ARM now. (fill_all_syscalls_numbers): ARM has close/chroot on 6/61, too.
2013-07-27gdb/gdbserver/Yao Qi1-0/+3
* Makefile.in (SFILES): Add common/mips-linux-watch.c. (mips-linux-watch.o): New rule. (mips_linux_watch_h): New variable. * configure.srv <mips*-*-linux*>: Add mips-linux-watch.o to srv_tgtobj. * linux-mips-low.c: Include mips-linux-watch.h. (struct arch_process_info, struct arch_lwp_info): New. (update_watch_registers_callback): New function. (mips_linux_new_process, mips_linux_new_thread) New functions. (mips_linux_prepare_to_resume, mips_insert_point): New functions. (mips_remove_point, mips_stopped_by_watchpoint): New functions. (rsp_bp_type_to_target_hw_bp_type): New function. (mips_stopped_data_address): New function. (the_low_target): Add watchpoint support functions. gdb/ * NEWS: Mention that GDBserver now supports hardware watchpoints on the MIPS GNU/Linux target.
2013-07-25Add new 'z' format for print command.Andrew Burgess1-0/+3
http://sourceware.org/ml/gdb-patches/2013-07/msg00235.html gdb/ChangeLog * NEWS: Mention new 'z' formatter. * printcmd.c (print_scalar_formatted): Add new 'z' formatter. (_initialize_printcmd): Mention 'z' formatter in help text of the 'x' command. gdb/doc/ChangeLog * gdb.texinfo (Output Formats): Mention the new 'z' formatter. gdb/testsuite/ChangeLog * gdb.base/printcmds.exp (test_print_int_arrays): Add tests for x, z, o, and t output formats. * gdb.base/display.exp: Use 'k' as an undefined format now that 'z' is defined.
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