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2014-02-26Resolve PR ld/16569 by emitting (and comparing) unmangled names, unlessDan Mick2-9/+31
demangling has specifically been requested.
2014-02-25Re-implement ia64-linux-nat.c::ia64_linux_xfer_partialPedro Alves2-12/+28
[description of this patch and ChangeLog entry by Joel Brobecker] The recent implementation was questionable, and if it worked, it was only by chance because the requested length is large enough that only one read was sufficient. Note that the implementation before that also made that assumption, in the form of only handling TARGET_OBJECT_UNWIND_TABLE xfer requests when offset was zero. gdb/ChangeLog: * ia64-linux-nat.c (ia64_linux_xfer_partial): Reimplement handling of object == TARGET_OBJECT_UNWIND_TABLE.
2014-02-25Annotate comments for Doxygen.Stan Shebs2-64/+72
2014-02-26daily updateAlan Modra1-1/+1
2014-02-25PR gdb/16626Jan Kratochvil2-2/+5
gdb/testsuite/ 2014-02-25 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/16626 * gdb.base/auto-load.exp: Fix out-of-srctree run. Message-ID: <87k3cjt3jl.fsf@fleche.redhat.com>
2014-02-25remove target_ignoreTom Tromey3-10/+5
This removes target_ignore, which isn't used any more. 2014-02-25 Tom Tromey <tromey@redhat.com> * target.h (target_ignore): Don't declare. * target.c (target_ignore): Remove.
2014-02-25PR gdb/16626Jan Kratochvil6-3/+96
Fix auto-load 7.7 regression, the regression affects any loading from /usr/share/gdb/auto-load . 5b2bf9471f1499bee578fcd60c05afe85794e280 is the first bad commit commit 5b2bf9471f1499bee578fcd60c05afe85794e280 Author: Doug Evans <xdje42@gmail.com> Date: Fri Nov 29 21:29:26 2013 -0800 Move .debug_gdb_script processing to auto-load.c. Simplify handling of auto-loaded objfile scripts. Fedora 20 x86_64 $ gdb -q /usr/lib64/libgobject-2.0.so Reading symbols from /usr/lib64/libglib-2.0.so.0.3800.2...Reading symbols from /usr/lib/debug/usr/lib64/libglib-2.0.so.0.3800.2.debug...done. done. (gdb) _ Fedora Rawhide x86_64 $ gdb -q /usr/lib64/libgobject-2.0.so Reading symbols from /usr/lib64/libglib-2.0.so...Reading symbols from /usr/lib/debug/usr/lib64/libglib-2.0.so.0.3990.0.debug...done. done. warning: File "/usr/lib64/libglib-2.0.so.0.3990.0-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load:/usr/bin/mono-gdb.py". To enable execution of this file add add-auto-load-safe-path /usr/lib64/libglib-2.0.so.0.3990.0-gdb.py line to your configuration file "/home/jkratoch/.gdbinit". To completely disable this security protection add set auto-load safe-path / line to your configuration file "/home/jkratoch/.gdbinit". For more information about this security protection see the "Auto-loading safe path" section in the GDB manual. E.g., run from the shell: info "(gdb)Auto-loading safe path" (gdb) _ That is it tries to load "forbidden" /usr/lib64/libglib-2.0.so.0.3990.0-gdb.py but it should load instead /usr/share/gdb/auto-load/usr/lib64/libglib-2.0.so.0.3990.0-gdb.py* Although that is also not exactly this way, there does not exist any /usr/lib64/libglib-2.0.so.0.3990.0-gdb.py despite regressed GDB says so. gdb/ 2014-02-24 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/16626 * auto-load.c (auto_load_objfile_script_1): Change filename to debugfile. gdb/testsuite/ 2014-02-24 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/16626 * gdb.base/auto-load-script: New file. * gdb.base/auto-load.c: New file. * gdb.base/auto-load.exp: New file. Message-ID: <20140223212400.GA8831@host2.jankratochvil.net>
2014-02-25Fix dw2-icycle.exp -fsanitize=address GDB crash.Jan Kratochvil2-10/+5
binutils readelf -wi: <4><a2>: Abbrev Number: 26 (DW_TAG_inlined_subroutine) <a3> DW_AT_abstract_origin: <0x5a> <a7> DW_AT_low_pc : 0x400590 <ab> DW_AT_high_pc : 0x4 <af> DW_AT_call_file : 1 <b0> DW_AT_call_line : 20 <b1> DW_AT_sibling : <0xb8> <2><b8>: Abbrev Number: 35 (DW_TAG_inlined_subroutine) <b9> DW_AT_abstract_origin: <0x5a> <bd> DW_AT_low_pc : 0x400590 <c1> DW_AT_high_pc : 0x4 <c5> DW_AT_call_file : 1 <c6> DW_AT_call_line : 29 <b1> DW_AT_sibling points to the next DIE - but that DIE is 2 levels upwards - definitely not a sibling. This confuses GDB up to a crash: ==32143== ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6024000198ac at pc 0xb4d104 bp 0x7fff63e96e70 sp 0x7fff63e96e60 READ of size 1 at 0x6024000198ac thread T0 #0 0xb4d103 in read_unsigned_leb128 (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb4d103) #1 0xb15f3c in peek_die_abbrev (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb15f3c) #2 0xb46185 in load_partial_dies (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb46185) #3 0xb103fb in process_psymtab_comp_unit_reader (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb103fb) #4 0xb0d2a9 in init_cutu_and_read_dies (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb0d2a9) #5 0xb1115f in process_psymtab_comp_unit (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb1115f) #6 0xb1235f in dwarf2_build_psymtabs_hard (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb1235f) #7 0xb05536 in dwarf2_build_psymtabs (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb05536) #8 0x86d5a5 in read_psyms (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x86d5a5) #9 0x9b1c37 in require_partial_symbols (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x9b1c37) #10 0x9bf2d0 in read_symbols (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x9bf2d0) #11 0x9c014c in syms_from_objfile_1 (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x9c014c) gdb/testsuite/ 2014-02-25 Jan Kratochvil <jan.kratochvil@redhat.com> Fix dw2-icycle.exp -fsanitize=address GDB crash. * gdb.dwarf2/dw2-icycle.S: Remove all DW_AT_sibling. Message-ID: <20140224201011.GA28926@host2.jankratochvil.net>
2014-02-25Remove bogus vcvtps2ph variant.Ilya Tocar3-20/+6
We currently support version of vcvtps2ph with sae and only 1 register operand. This version is encoded as if missing operand was equal to ymm0. I didn't found any references to this variant in http://download-software.intel.com/sites/default/files/managed/50/1a/319433-018.pdf This patch removes it. opcodes/ * i386-opc.tbl: Remove wrong variant of vcvtps2ph * i386-tbl.h: Regenerate.
2014-02-25Adjust ia64_linux_xfer_partial following to_xfer_partial API change.Joel Brobecker2-5/+29
ia64-linux-nat.c no longer compiles because ia64_linux_xfer_partial no longer matches the to_xfer_partial prototype. This patch fixes the problem by adjusting it accordingly. gdb/ChangeLog: * ia64-linux-nat.c (ia64_linux_xfer_partial): Add function documentation. Adjust prototype to match the target_ops to_xfer_partial method. Adjust implementation accordingly.
2014-02-25Fix a format issue of ChangeLog.Hui Zhu1-1/+1
2014-02-252014-02-25 Hui Zhu <hui@codesourcery.com>Hui Zhu2-1/+6
* target.h (target_ops): Fix TARGET_DEFAULT_RETURN of to_traceframe_info.
2014-02-25Use 16-bit integer type for rl78 register pairs.Kevin Buettner2-6/+82
This patch changes rl78-tdep.c so that a 16-bit type is used for register pairs instead of a pointer type as was previously the case. This will cause these register pairs to be displayed as integers instead of as a data address with a 0xf0000 ORed in. E.g. registers ax, bc, de, and hl might now be displayed like this: (gdb) info registers ax bc de hl ax 0x6 6 bc 0x0 0 de 0x10c3 4291 hl 0x108d 423 Whereas, before, they were displayed as follows: (gdb) info registers ax bc de hl ax 0xf0006 0xf0006 bc 0xf0000 0xf0000 de 0xf10c3 0xf10c3 hl 0xf108d 0xf108d These pairs are 16 bit quantities and should be displayed as such. This change also affects the way that the banked register pairs are displayed. Within GDB, the banked register pairs are named bank0_rp0, bank0_rp1, .., bank3_rp2, bank3_rp3. However, these register pairs need to be used as addresses in DWARF expressions. I have added 16 pseudo registers corresponding to banked register pairs. These new pseudo registers are all hidden from the user and have a pointer type. Values from these registers are intended to be used in DWARF expressions. Therefore, rl78_dwarf_reg_to_regnum() has been adjusted to return these new pseudo register numbers. I had a much simpler patch which only changed the types, but it showed a number of regressions due to integer values from the banked register pairs being used as part of an address expression. This current patch shows no regressions and now displays values of register pairs correctly. * rl78-tdep.c ( RL78_BANK0_RP0_PTR_REGNUM, RL78_BANK0_RP1_PTR_REGNUM) (RL78_BANK0_RP2_PTR_REGNUM, RL78_BANK0_RP3_PTR_REGNUM) (RL78_BANK1_RP0_PTR_REGNUM, RL78_BANK1_RP1_PTR_REGNUM) (RL78_BANK1_RP2_PTR_REGNUM, RL78_BANK1_RP3_PTR_REGNUM) (RL78_BANK2_RP0_PTR_REGNUM, RL78_BANK2_RP1_PTR_REGNUM) (RL78_BANK2_RP2_PTR_REGNUM, RL78_BANK2_RP3_PTR_REGNUM) (RL78_BANK3_RP0_PTR_REGNUM, RL78_BANK3_RP1_PTR_REGNUM) (RL78_BANK3_RP2_PTR_REGNUM, RL78_BANK3_RP3_PTR_REGNUM): New constants. (rl78_register_type): Use a data pointer type for SP and new pseudo registers mentioned above. Use a 16 bit integer type for all other register pairs. (rl78_register_name, rl78_g10_register_name): Update for new pseudo registers. (rl78_pseudo_register_read): Likewise. (rl78_pseudo_register_write): Likewise. (rl78_dwarf_reg_to_regnum): Return register numbers representing to the newly added pseudo registers.
2014-02-25daily updateAlan Modra1-1/+1
2014-02-24 * value.c (record_latest_value): Fix comment.Doug Evans3-15/+11
* printcmd.c (print_command_1): Remove code to handle -1 return from record_latest_value.
2014-02-24lib/gdb.exp (run_on_host): Log error output if program fails.Doug Evans2-0/+5
2014-02-24procfs.c: Don't install a deprecated_xfer_memory methodPedro Alves2-46/+36
This removes yet another instance of a deprecated_xfer_memory user, and fixes a nasty regression as a side-effect: (gdb) start Temporary breakpoint 1 at 0x19070: file simple_main.adb, line 4. Starting program: /[...]/simple_main Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x19070 Cannot insert breakpoint -3. Temporarily disabling shared library breakpoints: breakpoint #-3 The regression was introduced by the to_xfer_partial transition to return a status enum. procfs_xfer_partial was updated but not the case where object is TARGET_OBJECT_MEMORY. As result, procfs_xfer_partial was returning the length xfered rather than the status, and the xfered buffer was left uninitialized. gdb/ 2014-02-19 Pedro Alves <palves@redhat.com> * procfs.c (procfs_target): Don't install procfs_xfer_memory as deprecated_xfer_memory hook. (procfs_xfer_partial): Call procfs_xfer_memory instead of the deprecated_xfer_memory target hook. (procfs_xfer_memory): Adjust interface as a to_xfer_partial helper.
2014-02-24Fix a GDB assert failure on windowsYuanhui Zhang2-1/+7
A GDB internal error is found on native mingw32 target. (gdb) run ../../binutils-gdb/gdb/target.c:1483: internal-error: target_xfer_partial: Assertion `*xfered_len > 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) This error was introduced by the following snippet in commit 9b409511d07fe375284701af34909fb539029caf > @@ -2536,27 +2538,30 @@ windows_xfer_shared_libraries (struct target_ops *ops, > } > > obstack_free (&obstack, NULL); > - return len; > + *xfered_len = (ULONGEST) len; > + return TARGET_XFER_OK; > } In the original code, len is returned, which could be 0, but after that commit, only TARGET_XFER_OK is returned, which is wrong. If len is 0, TARGET_XFER_EOF should be returned. (it is 0 in enum target_xfer_status declaration). gdb: 2014-02-24 Yuanhui Zhang <asmwarrior@gmail.com> * windows-nat.c (windows_xfer_shared_libraries): Return TARGET_XFER_EOF if LEN is zero to fix an assert failure when requested object is TARGET_OBJECT_LIBRARIES.
2014-02-24Rename TARGET_XFER_E_UNAVAILABLE to TARGET_XFER_UNAVAILABLEYao Qi8-18/+32
Nowadays, TARGET_XFER_E_UNAVAILABLE isn't regarded as an error in to_xfer_partial interface, so _E_ looks odd. This patch is to replace TARGET_XFER_E_UNAVAILABLE with TARGET_XFER_UNAVAILABLE, and change its value from -2 to 2. Since there is no comparison on the value of 'enum target_xfer_status', so it should be safe. gdb: 2014-02-24 Yao Qi <yao@codesourcery.com> * target.h (enum target_xfer_status) <TARGET_XFER_E_UNAVAILABLE>: Rename it to ... <TARGET_XFER_UNAVAILABLE>: ... it with setting value 2 explicitly. New. * corefile.c (memory_error_message): User updated. * exec.c (section_table_read_available_memory): Likewise. * record-btrace.c (record_btrace_xfer_partial): Likewise. * target.c (target_xfer_status_to_string): Likewise. (raw_memory_xfer_partial): Likewise. (memory_xfer_partial_1, target_xfer_partial): Likewise. * valops.c (read_value_memory): Likewise. * exec.h: Update comments.
2014-02-24Tweak target_xfer_status_to_stringYao Qi3-5/+14
This patch tweaks target_xfer_status_to_string on comments and argument name. gdb: 2014-02-24 Yao Qi <yao@codesourcery.com> * target.c (target_xfer_status_to_string): Rename argument err to status. * target.h (target_xfer_status_to_string): Update declaration. Replace target_xfer_error_to_string with target_xfer_status_to_string in comment.
2014-02-24Unbreak mips native buildYao Qi2-2/+7
When I build mips native gdb today, I get the follow error, ../../../git/gdb/mips-linux-nat.c: In function '_initialize_mips_linux_nat': ../../../git/gdb/mips-linux-nat.c:792:15: error: assignment from incompatible pointer type [-Werror] cc1: all warnings being treated as errors It looks an oversight of recent target_ops delegation patches. This patch is to fix the build error. gdb: 2014-02-24 Yao Qi <yao@codesourcery.com> * mips-linux-nat.c (super_close): Update its type. (mips_linux_close): Pass 'self' to super_close.
2014-02-24Remove TARGET_XFER_STATUS_ERROR_PYao Qi4-13/+11
This patch removes macro TARGET_XFER_STATUS_ERROR_P, as Pedro pointed out during patches review that TARGET_XFER_STATUS_ERROR_P tends to be unnecessary. gdb: 2014-02-24 Yao Qi <yao@codesourcery.com> * target.h (TARGET_XFER_STATUS_ERROR_P): Remove. * corefile.c (read_memory): Adjusted. * target.c (target_write_with_progress): Adjusted.
2014-02-24daily updateAlan Modra1-1/+1
2014-02-23Revert previous tweaksYao Qi3-18/+20
As we migrate to the new to_xfer_partial interface, some of previous tweaks become unnecessary, we don't have to check traceframe is selected in each target implementation, so this patch below is reverted. [PATCH] Send qXfer:traceframe-info:read when traceframe is selected. https://sourceware.org/ml/gdb-patches/2013-10/msg00752.html Third, to_traceframe_info is only called when traceframe is selected, that means it is only called when target is remote, tfile or ctf, so this patch can be partially reverted, https://sourceware.org/ml/gdb-patches/2013-04/msg00000.html gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> Revert two patches: 2013-10-25 Yao Qi <yao@codesourcery.com> * remote.c (remote_traceframe_info): Return early if traceframe is not selected. 2013-07-19 Yao Qi <yao@codesourcery.com> * target.c (update_current_target): Change the default action of 'to_traceframe_info' from tcomplain to return_zero. * target.h (struct target_ops) <to_traceframe_info>: Add more comments.
2014-02-23Adjust read_value_memory to use to_xfer_partialYao Qi4-85/+38
As the new to_xfer_partial implementations are done in ctf and tfile targets, read_value_memory can be simplified a lot. Call target_xfer_partial in a loop, check return value, and set bytes unavailable when necessary. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * valops.c (read_value_memory): Rewrite it. Call target_xfer_partial in a loop. * exec.h (section_table_available_memory): Remove declaration. Move comments to ... * exec.c (section_table_available_memory): ... here. Make it static.
2014-02-23Use new to_xfer_partial interface in ctf and tfile targetYao Qi5-4/+85
This patch adjust both ctf and tfile target implementation of to_xfer_partial, to return TARGET_XFER_E_UNAVAILABLE and set *XFERED_LEN if data is unavailable. Note that some code on xfer in exec.c can be shared, but we can do it in a separate pass later. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * exec.c (section_table_read_available_memory): New function. * exec.h (section_table_read_available_memory): Declare. * ctf.c (ctf_xfer_partial): Call section_table_read_available_memory. * tracefile-tfile.c (tfile_xfer_partial): Likewise.
2014-02-23Share code on to_xfer_partial for tfile and ctf targetYao Qi6-76/+67
In the to_xfer_partial implementations of ctf and tfile, the code on reading from read-only sections is duplicated. This patch moves it to a separate function exec_read_partial_read_only. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * ctf.c (ctf_xfer_partial): Move code to ... * exec.c (exec_read_partial_read_only): ... it. New function. * tracefile-tfile.c (tfile_xfer_partial): Likewise. * tracefile.c: Include "exec.h". * exec.h (exec_read_partial_read_only): Declare.
2014-02-23Let tracefile has_memory and has_all_memory.Yao Qi3-14/+29
At present, tfile target thinks it has memory but ctf doesn't. This is an oversight when I added ctf target support. This patch moves the implementations of to_has_all_memory and to_has_memory to upper layer. After this change, both tfile and ctf target think they have memory. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * tracefile-tfile.c (tfile_has_all_memory): Remove. (tfile_has_memory): Remove. (init_tfile_ops): Don't set fields to_has_all_memory and to_has_memory of tfile_ops. * tracefile.c (tracefile_has_all_memory): New function. (tracefile_has_memory): New function. (init_tracefile_ops): Initialize fields to_has_all_memory and to_has_memory of 'ops'.
2014-02-23Share some code between ctf and tfile target.Yao Qi5-82/+77
This patch move the duplicated code between tfile and ctf targets into file tracefile.c. The common part of target_ops fields are set in init_tracefile_ops. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * ctf.c (ctf_has_stack, ctf_has_registers): Remove. (ctf_thread_alive, ctf_get_trace_status): Remove. (init_ctf_ops): Don't set some fields of ctf_ops. Call init_tracefile_ops. * tracefile-tfile.c (tfile_get_trace_status): Remove. (tfile_has_stack, tfile_has_registers): Remove. (tfile_thread_alive): Remove. (init_tfile_ops): Don't set some fields of tfile_ops. Call init_tracefile_ops. * tracefile.c (tracefile_has_stack): New function. (tracefile_has_registers): New function. (tracefile_thread_alive): New function. (tracefile_get_trace_status): New function. (init_tracefile_ops): New function. * tracefile.h (init_tracefile_ops): Declare.
2014-02-23Move tfile target to tracefile-tfile.cYao Qi3-815/+854
This patch moves tfile target related code from tracepoint.c to tracefile-tfile.c. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * tracepoint.c (TFILE_PID): Move it to tracefile-tfile.c. (O_LARGEFILE): Likewise. (tfile_ops): Likewise. (TRACE_HEADER_SIZE): Likewise. (trace_fd, trace_frames_offset, cur_offset): Likewise. (cur_data_size): Likewise. (tfile_read, tfile_open, tfile_interp_line): Likewise. (tfile_close, tfile_files_info): Likewise. (tfile_get_trace_status): Likewise. (tfile_get_tracepoint_status): Likewise. (tfile_get_traceframe_address): Likewise. (tfile_trace_find, match_blocktype): Likewise. (traceframe_walk_blocks, traceframe_find_block_type): Likewise. (tfile_fetch_registers, tfile_xfer_partial): Likewise. (tfile_get_trace_state_variable_value): Likewise. (tfile_has_all_memory, tfile_has_memory): Likewise. (tfile_has_stack, tfile_has_registers): Likewise. (tfile_thread_alive, build_traceframe_info): Likewise. (tfile_traceframe_info, init_tfile_ops): Likewise. (_initialize_tracepoint): Don't call init_tfile_ops and add_target_with_completer. * tracefile-tfile.c: Include regcache.h, inferior.h, gdbthread.h, exec.h, completer.h and filenames.h. (_initialize_tracefile_tfile): New function.
2014-02-23Move trace file writer out of tracepoint.cYao Qi8-777/+874
This patch is a refactor which moves trace file writer related code out of tracepoint.c, which has 6k LOC. It moves general trace file writer to a new file tracefile.c and moves tfile specific writer to tracefile-tfile.c. gdb: 2014-02-23 Yao Qi <yao@codesourcery.com> * Makefile.in (REMOTE_OBS): Append tracefile.o and tracefile-tfile.o. (HFILES_NO_SRCDIR): Add tracefile.h. * ctf.c: Include "tracefile.h". * tracefile.h: New file. * tracefile.c: New file * tracefile-tfile.c: New file. * tracepoint.c: Include "tracefile.h". (free_uploaded_tps, free_uploaded_tsvs): Remove declarations. (stop_reason_names): Add const. (trace_file_writer_xfree): Move it to tracefile.c. (trace_save, trace_save_command, trace_save_tfile): Likewise. (trace_save_ctf): Likewise. (struct tfile_trace_file_writer): Move it to tracefile-tfile.c. (tfile_target_save, tfile_dtor, tfile_start): Likewise. (tfile_write_header, tfile_write_regblock_type): Likewise. (tfile_write_status, tfile_write_uploaded_tsv): Likewise. (tfile_write_uploaded_tp, tfile_write_definition_end): Likewise. (tfile_write_raw_data, tfile_end): Likewise. (tfile_trace_file_writer_new): Likewise. (free_uploaded_tp): Make it extern. (free_uploaded_tsv): Make it extern. (_initialize_tracepoint): Move code to register command 'tsave' to tracefile.c. * tracepoint.h (stop_reason_names): Declare. (struct trace_frame_write_ops): Move it to tracefile.h. (struct trace_file_write_ops): Likewise. (struct trace_file_writer): Likewise. (free_uploaded_tsvs, free_uploaded_tps): Declare.
2014-02-23daily updateAlan Modra1-1/+1
2014-02-22daily updateAlan Modra1-1/+1
2014-02-21Fix crash on process name "(sd-pam)" (PR 16594).Jan Kratochvil3-17/+27
info os processes -fsanitize=address error https://sourceware.org/bugzilla/show_bug.cgi?id=16594 info os processes ================================================================= ==5795== ERROR: AddressSanitizer: heap-use-after-free on address 0x600600214974 at pc 0x757a92 bp 0x7fff95dd9f00 sp 0x7fff95dd9ef0 READ of size 4 at 0x600600214974 thread T0 #0 0x757a91 in get_cores_used_by_process (.../gdb/gdb+0x757a91) At least Fedora 20 has process(es): 6678 ? Ss 0:00 /usr/lib/systemd/systemd --user 6680 ? S 0:00 \_ (sd-pam) and GDB "info os processes" crashes on it as /proc/6680/stat contains: 6680 ((sd-pam)) S 6678 6678 6678 0 -1 1077961024 33 0 0 0 0 0 0 0 20 0 1 0 18568 73768960 120 18446744073709551615 1 1 0 0 0 0 0 4096 0 18446744073709551615 0 0 17 6 0 0 0 0 0 0 0 0 0 0 0 0 0 and GDB fails to find the proper end of the process name "((sd-pam))". Therefore it reads core number off-by-one (it reads 17 instead of 6) and overruns the array. (1) Make the process name parsing more foolproof. (2) Do not trust the parsed number from /proc/PID/stat and verify it against the array size. I noticed that 'ps' gets this right, so I've peeked at its sources, and it just looks for the first ')' starting at the end. https://gitorious.org/procps/procps/source/dc072aced7250fed9b01fb05f0d672678752a63e:proc/readproc.c Look for stat2proc. Given ps does that, I believe the kernel won't ever be changed in a way that would break it. So it sounds like could do strrchr from the end of stat just as well without worry, which is simpler. gdb/ 2014-02-21 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/16594 * common/linux-osdata.c (linux_common_core_of_thread): Find the end of process name. (get_cores_used_by_process): New parameter num_cores, use it. (linux_xfer_osdata_processes): Pass num_cores to it. * linux-tdep.c (linux_info_proc, linux_fill_prpsinfo): Find the end of process name. Message-ID: <20140217212826.GA15080@host2.jankratochvil.net>
2014-02-21Add support for CPUID PREFETCHWT1Ilya Tocar23-3882/+3995
Latest AVX512 spec http://download-software.intel.com/sites/default/files/managed/50/1a/319433-018.pdf Has CPUID PREFETCHWT1 for prefetchwt1 instruction, which we list as AVX512PF. This patch introduces CPUID PREFETCHWT1. gas/ * config/tc-i386.c (cpu_arch): Add .prefetchwt1. * doc/c-i386.texi: Document .prefetchwt1/prefetchwt1. opcodes/ * i386-gen.c (cpu_flag_init): Add CPU_PREFETCHWT1_FLAGS/ (cpu_flags): Add CpuPREFETCHWT1. * i386-init.h: Regenerate. * i386-opc.h (CpuPREFETCHWT1): New. (i386_cpu_flags): Add cpuprefetchwt1. * i386-opc.tbl: Cahnge CPU of prefetchwt1 from CpuAVX512PF to CpuPREFETCHWT1. * i386-tbl.h: Regenerate. gas/testsuite * gas/i386/avx512pf-intel.d: Remove prefetchwt1. * gas/i386/avx512pf.s: Ditto. * gas/i386/avx512pf.d: Ditto. * gas/i386/x86-64-avx512pf-intel.d: Ditto. * gas/i386/x86-64-avx512pf.s: Ditto. * gas/i386/x86-64-avx512pf.d: Ditto. * gas/i386/prefetchwt1-intel.d: New file. * gas/i386/prefetchwt1.s: Ditto. * gas/i386/prefetchwt1.d: Ditto. * gas/i386/x86-64-prefetchwt1-intel.d: Ditto. * gas/i386/x86-64-prefetchwt1.s: Ditto. * gas/i386/x86-64-prefetchwt1.d: Ditto.
2014-02-21Fix length arg in call to breakpoint_xfer_memory.Andreas Krebbel2-1/+6
The patch "return target_xfer_status in to_xfer_partial" caused a regression in various s390(x) test cases, because memory_xfer_partial filled only the first byte of the read buffer from a breakpoint shadow: https://sourceware.org/ml/gdb-patches/2014-01/msg01071.html This patch fixes the regression.
2014-02-21Rename test.Pedro Alves3-0/+8
I realized that the name of this test only made sense when considering the old (never committed) implementation of the fix that came along with the test originally, that forced a schedlock while a step-resume (to get over the signal handler) was inserted. The final solution that went into the tree does not force that locking. So this renames it to something more descriptive. gdb/testsuite/ 2014-02-21 Pedro Alves <palves@redhat.com> * gdb.threads/step-after-sr-lock.c: Rename to ... * gdb.threads/signal-while-stepping-over-bp-other-thread.c: ... this. * gdb.threads/step-after-sr-lock.exp: Rename to ... * gdb.threads/signal-while-stepping-over-bp-other-thread.exp: ... this.
2014-02-21Add file missed from last commit.Alan Modra1-0/+7
2014-02-21Add ppc476 workaround bootstrap testAlan Modra2-2/+15
I was running this by hand to test out --ppc476-workaround. Another bootstrap test doesn't take all that long, so let's add it to the testsuite. * ld-bootstrap/bootstrap.exp: Add ppc476 workaround test. * ld-bootstrap/ppc476.t: New file.
2014-02-21daily updateAlan Modra1-1/+1
2014-02-20Fix for PR tdep/16397: SystemTap SDT probe support for x86 doesn't work with ↵Sergio Durigan Junior8-1/+281
"triplet operands" This is the continuation of what Joel proposed on: <https://sourceware.org/ml/gdb-patches/2013-12/msg00977.html> Now that I have already submitted and pushed the patch to split i386_stap_parse_special_token into two smaller functions, it is indeed simpler to understand this patch. It occurs because, on x86, triplet displacement operands are allowed (like "-4+8-20(%rbp)"), and the current parser for this expression is buggy. It does not correctly extract the register name from the expression, which leads to incorrect evaluation. The parser was also being very "generous" with the expression, so I included a few more checks to ensure that we're indeed dealing with a triplet displacement operand. This patch also includes testcases for the two different kind of expressions that can be encountered on x86: the triplet displacement (explained above) and the three-argument displacement (as in "(%rbx,%ebx,-8)"). The tests are obviously arch-dependent and are placed under gdb.arch/. Message-ID: <m3mwj1j12v.fsf@redhat.com> URL: <https://sourceware.org/ml/gdb-patches/2014-01/msg00310.html> gdb/ 2014-02-20 Sergio Durigan Junior <sergiodj@redhat.com> PR tdep/16397 * i386-tdep.c (i386_stap_parse_special_token_triplet): Check if a number comes after the + or - signs. Adjust length of register name to be extracted. gdb/testsuite/ 2014-02-20 Sergio Durigan Junior <sergiodj@redhat.com> PR tdep/16397 * gdb.arch/amd64-stap-special-operands.exp: New file. * gdb.arch/amd64-stap-three-arg-disp.S: Likewise. * gdb.arch/amd64-stap-three-arg-disp.c: Likewise. * gdb.arch/amd64-stap-triplet.S: Likewise. * gdb.arch/amd64-stap-triplet.c: Likewise.
2014-02-20Add single sentence description to top of entry of previous commit.Doug Evans1-0/+1
2014-02-20mark *_varobj_ops as "extern"Tom Tromey2-4/+9
The AIX linker pointed out that gdb had multiple definitions of the various *_varobj_ops objects. This patch fixes the problem by marking the declarations as "extern" in varobj.h. Tested by rebuilding on x86-64 Fedora 18 and on AIX. 2014-02-20 Tom Tromey <tromey@redhat.com> * varobj.h (c_varobj_ops, cplus_varobj_ops, java_varobj_ops) (ada_varobj_ops): Mark "extern".
2014-02-20Remove all_lwps global.Doug Evans11-292/+459
* inferiors.h (ptid_of): Move here from linux-low.h. (pid_of, lwpid_of): Ditto. * linux-aarch64-low.c (debug_reg_change_callback): Update, "entry" parameter is a struct thread_info * now. (aarch64_notify_debug_reg_change): Fetch pid from current_inferior directly. Pass &all_threads to find_inferior instead of &all_lwps. (aarch64_stopped_data_address): Fetch lwpid from current_inferior directly. (aarch64_linux_prepare_to_resume): Fetch ptid from thread. (aarch64_arch_setup): Fetch lwpid from current_inferior directly. * linux-arm-low.c (update_registers_callback): Update, "entry" parameter is a struct thread_info * now. Fetch lwpid from current_inferior directly. (arm_insert_point): Pass &all_threads to find_inferior instead of &all_lwps. (arm_remove_point): Ditto. (arm_stopped_by_watchpoint): Fetch lwp from current_inferior. (arm_prepare_to_resume): Fetch pid from thread. (arm_read_description): Fetch lwpid from current_inferior directly. * linux-low.c (all_lwps): Delete. (delete_lwp): Delete call to remove_inferior. (handle_extended_wait): Fetch lwpid from thread. (add_lwp): Don't set lwp->entry.id. Remove call to add_inferior_to_list. (linux_attach_lwp_1): Fetch pid from current_inferior directly. (linux_kill_one_lwp): Fetch ptid,lwpid from thread. (kill_one_lwp_callback): Ditto. (linux_kill): Don't dereference NULL pointer. Fetch ptid,lwpid from thread. (get_detach_signal): Fetch ptid from thread. (linux_detach_one_lwp): Fetch ptid,lwpid from thread. Simplify call to regcache_invalidate_thread. (delete_lwp_callback): Update, "entry" parameter is a struct thread_info * now. Fetch pid from thread. (linux_mourn): Pass &all_threads to find_inferior instead of &all_lwps. (status_pending_p_callback): Update, "entry" parameter is a struct thread_info * now. Fetch ptid from thread. (find_lwp_pid): Update, "entry" parameter is a struct thread_info * now. (linux_wait_for_lwp): Fetch pid from thread. (linux_fast_tracepoint_collecting): Fetch lwpid from thread. (maybe_move_out_of_jump_pad): Fetch lwpid from current_inferior. (enqueue_one_deferred_signal): Fetch lwpid from thread. (dequeue_one_deferred_signal): Ditto. (cancel_breakpoint): Fetch ptid from current_inferior. (linux_wait_for_event): Pass &all_threads to find_inferior, not &all_lwps. Fetch ptid, lwpid from thread. (count_events_callback): Update, "entry" parameter is a struct thread_info * now. (select_singlestep_lwp_callback): Ditto. (select_event_lwp_callback): Ditto. (cancel_breakpoints_callback): Ditto. (linux_cancel_breakpoints): Pass &all_threads to find_inferior, not &all_lwps. (select_event_lwp): Ditto. Fetch ptid from event_thread. (unsuspend_one_lwp): Update, "entry" parameter is a struct thread_info * now. (unsuspend_all_lwps): Pass &all_threads to find_inferior, not &all_lwps. (linux_stabilize_threads): Ditto. And for for_each_inferior. Fetch lwpid from thread, not lwp. (linux_wait_1): Fetch ptid, lwpid from current_inferior. Pass &all_threads to find_inferior, not &all_lwps. (send_sigstop): Fetch lwpid from thread, not lwp. (send_sigstop_callback): Update, "entry" parameter is a struct thread_info * now. (suspend_and_send_sigstop_callback): Ditto. (wait_for_sigstop): Ditto. Fetch ptid, lwpid from thread, lwp. (stuck_in_jump_pad_callback): Update, "entry" parameter is a struct thread_info * now. (move_out_of_jump_pad_callback): Ditto. Fetch ptid, lwpid from thread, lwp. (lwp_running): Update, "entry" parameter is a struct thread_info * now. (stop_all_lwps): Fetch ptid from thread. Pass &all_threads to find_inferior, for_each_inferior, not &all_lwps. (linux_resume_one_lwp): Fetch lwpid from thread. (linux_set_resume_request): Update, "entry" parameter is a struct thread_info * now. Fetch pid, lwpid from thread. (resume_status_pending_p): Update, "entry" parameter is a struct thread_info * now. (need_step_over_p): Ditto. Fetch lwpid from thread. (start_step_over): Fetch lwpid from thread. (linux_resume_one_thread): Update, "entry" parameter is a struct thread_info * now. Fetch lwpid from thread. (linux_resume): Pass &all_threads to find_inferior, not &all_lwps. (proceed_one_lwp): Update, "entry" parameter is a struct thread_info * now. Fetch lwpid from thread. (unsuspend_and_proceed_one_lwp): Update, "entry" parameter is a struct thread_info * now. (proceed_all_lwps): Pass &all_threads to find_inferior, not &all_lwps. (unstop_all_lwps): Ditto. Fetch lwpid from thread. (regsets_fetch_inferior_registers): Fetch lwpid from current_inferior directly. (regsets_store_inferior_registers): Ditto. (fetch_register, store_register): Ditto. (linux_read_memory, linux_write_memory): Ditto. (linux_request_interrupt): Ditto. (linux_read_auxv): Ditto. (linux_xfer_siginfo): Ditto. (linux_qxfer_spu): Ditto. (linux_qxfer_libraries_svr4): Ditto. * linux-low.h (ptid_of, pid_of, lwpid_of): Delete, moved to inferiors.h. (get_lwp): Delete. (get_thread_lwp): Update. (struct lwp_info): Delete member "entry". Simplify comment for member "thread". (all_lwps): Delete. * linux-mips-low.c (mips_read_description): Fetch lwpid from current_inferior directly. (update_watch_registers_callback): Update, "entry" parameter is a struct thread_info * now. Fetch pid from thread. (mips_linux_prepare_to_resume): Fetch ptid from thread. (mips_insert_point): Fetch lwpid from current_inferior. Pass &all_threads to find_inferior, not &all_lwps. (mips_remove_point): Pass &all_threads to find_inferior, not &all_lwps. (mips_stopped_by_watchpoint): Fetch lwpid from current_inferior directly. (mips_stopped_data_address): Ditto. * linux-s390-low.c (s390_arch_setup): Fetch pid from current_inferior directly. * linux-tile-low.c (tile_arch_setup): Ditto. * linux-x86-low.c (x86_get_thread_area): Fetch lwpid from thread. (update_debug_registers_callback): Update, "entry" parameter is a struct thread_info * now. Fetch pid from thread. (i386_dr_low_set_addr): Fetch pid from current_inferior directly. Pass &all_threads to find_inferior, not &all_lwps. (i386_dr_low_get_addr): Fetch ptid from current_inferior directly. (i386_dr_low_set_control): Fetch pid from current_inferior directly. Pass &all_threads to find_inferior, not &all_lwps. (i386_dr_low_get_control): Fetch ptid from current_inferior directly. (i386_dr_low_get_status): Ditto. (x86_linux_prepare_to_resume): Fetch ptid from thread. (x86_siginfo_fixup): Fetch lwpid from current_inferior directly. (x86_linux_read_description): Ditto. * proc-service.c (ps_getpid): Fetch pid from current_inferior directly.
2014-02-20minor cleanup in dbxread.cTom Tromey2-2/+4
I happened to notice that last_o_file_start is write-only in read_dbx_symtab. This patch removes it. Tested by rebuilding. 2014-02-20 Tom Tromey <tromey@redhat.com> * dbxread.c (read_dbx_symtab): Remove last_o_file_start.
2014-02-20* inferiors.c (get_first_inferior): Fix buglet.Doug Evans2-2/+6
2014-02-20Simplify .section in dw2-icycle.SJoel Brobecker2-2/+7
The arm-elf assembler chokes on the extra parameters in the .section pseudo-op, so this patch removes them. gdb/testsuite/ChangeLog: * gdb.dwarf2/dw2-icycle.S: Remove second and third parameters in .section pseudo-op.
2014-02-20Move containing_scm arg from gdbscm_fill_eqable_gsmob_ptr_slotDoug Evans8-22/+28
to gdbscm_init_eqable_gsmob. * guile/scm-gsmob.c (gdbscm_init_eqable_gsmob): New arg containing_scm. All callers updated. (gdbscm_fill_eqable_gsmob_ptr_slot): Delete arg containing_scm. All callers updated. * guile/guile-internal.h (gdbscm_init_eqable_gsmob): Update. (gdbscm_fill_eqable_gsmob_ptr_slot): Update.
2014-02-20fix whitespace in previous commitDoug Evans1-0/+1
2014-02-20Fix PR symtab/16581Doug Evans6-2/+376
* dwarf2read.c (struct die_info): New member in_process. (reset_die_in_process): New function. (process_die): Set it at the start, reset when returning. (inherit_abstract_dies): Only call process_die if origin_child_die not already being processed. testsuite/ * gdb.dwarf2/dw2-icycle.S: New file. * gdb.dwarf2/dw2-icycle.c: New file. * gdb.dwarf2/dw2-icycle.exp: New file.
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