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2015-12-22RXv2 support updateYoshinori Sato4-8/+24
2015-12-22 Yoshinori Sato <ysato@users.sourceforge.jp> opcodes/ * rx-decode.opc (movco): Use uniqe id. (movli): Likewise. (stnz): Condition fix. (mvtacgu): Destination fix. * rx-decode.c: Regenerate. bfd/ * archures.c: Add bfd_mach_rx_v2. * bfd-in2.h: Regenerate. * cpu-rx.c (arch_info_struct): Add v2 information. * elf32-rx.c (elf32_rx_machine): Add v2 support.
2015-12-22Add support for ARM's NOREAD section flag.Mickael Guene20-5/+251
include/elf * arm.h: Add arm SHF_ARM_NOREAD section flag. bfd * bfd-in2.h: Regenerate. * section.c: Add SEC_ELF_NOREAD. * elf32-arm.c (elf32_arm_post_process_headers): Only set PF_X attribute if a segment only contains section with SHF_ARM_NOREAD flag. (elf32_arm_fake_sections): Add SEC_ELF_NOREAD conversion. (elf32_arm_section_flags): New function to convert SHF_ARM_NOREAD to bfd flag. (elf32_arm_lookup_section_flags): New function to allow INPUT_SECTION_FLAGS directive with SHF_ARM_NOREAD flag. (elf32_arm_special_sections): Add special sections array to catch section prefix by '.text.noread' pattern. ld/testsuite * ld-arm/arm-elf.exp: New tests. * ld-arm/thumb1-input-section-flag-match.d: New * ld-arm/thumb1-input-section-flag-match.s: New * ld-arm/thumb1-noread-not-present-mixing-two-section.d: New * ld-arm/thumb1-noread-not-present-mixing-two-section.s: New * ld-arm/thumb1-noread-present-one-section.d: New * ld-arm/thumb1-noread-present-one-section.s: New * ld-arm/thumb1-noread-present-two-section.d: New * ld-arm/thumb1-noread-present-two-section.s: New binutils * readelf.c (get_elf_section_flags): Add support for ARM specific section flags.
2015-12-22Add an expect for running commands with CLI jumpThomas Preud'homme2-0/+8
2015-12-22 Thomas Preud'homme <thomas.preudhomme@arm.com> gdb/testsuite/ * lib/mi-support.exp (mi_run_cmd_full): Add an expect for the CLI jump case.
2015-12-22Automatic date update in version.inGDB Administrator1-1/+1
2015-12-21Remove dead code in testsuiteSimon Marchi3-60/+17
This patch removes cases from the testsuite that are not posssibly used. The messages "Catch of * not yet implemented" were removed here: https://www.sourceware.org/ml/gdb-patches/2004-01/msg00679.html I changed the regexp at the same time to match the string more closely. gdb/testsuite/ChangeLog: * gdb.base/break.exp: Remove dead code. * gdb.base/sepdebug.exp: Likewise.
2015-12-21Remove HP-UX references fom testsuiteSimon Marchi36-1048/+146
This patch removes all special cases for HP-UX, for which support has been removed earlier, that I found in the testsuite. Note that the hppa architecture != HP-UX, since other OSes can run on hppa, so I tried to leave everything that is not HP-UX specific. Two complete tests were completely HP-UX specific, so I removed them. I ran the testsuite on Linux x86-64, native and native-gdbserver, and noticed no regressions. gdb/testsuite/ChangeLog: * gdb.asm/asm-source.exp: Remove HP-UX references. * gdb.base/annota1.exp: Likewise. * gdb.base/annota3.exp: Likewise. * gdb.base/attach.exp: Likewise. * gdb.base/bigcore.exp: Likewise. * gdb.base/break.exp: Likewise. * gdb.base/call-ar-st.exp: Likewise. * gdb.base/callfuncs.exp: Likewise. * gdb.base/catch-fork-static.exp: Likewise. * gdb.base/display.exp: Likewise. * gdb.base/foll-exec-mode.exp: Likewise. * gdb.base/foll-exec.exp: Likewise. * gdb.base/foll-fork.exp: Likewise. * gdb.base/foll-vfork.exp: Likewise. * gdb.base/funcargs.exp: Likewise. * gdb.base/hbreak2.exp: Likewise. * gdb.base/inferior-died.exp: Likewise. * gdb.base/interrupt.exp: Likewise. * gdb.base/multi-forks.exp: Likewise. * gdb.base/nodebug.exp: Likewise. * gdb.base/sepdebug.exp: Likewise. * gdb.base/solib1.c: Likewise. * gdb.base/step-test.exp: Likewise. * gdb.mi/non-stop.c: Likewise. * gdb.mi/pthreads.c: Likewise. * gdb.multi/bkpt-multi-exec.ex: Likewise. * gdb.threads/pthreads.c: Likewise. * gdb.threads/staticthreads.exp: Likewise. * lib/future.exp: Likewise. * lib/gdb.exp: Likewise. * gdb.base/so-indr-cl.c: Remove. * gdb.base/so-indr-cl.exp: Likewise. * gdb.base/solib.c: Likewise. * gdb.base/solib.exp: Likewise. * gdb.base/solib2.c: Likewise.
2015-12-21Remove references to HP CC/aCC compiler from testsuiteSimon Marchi29-324/+72
The HP CC/aCC compiler is exclusive to HP-UX, for which support has been explicitly removed. Therefore, It does not make sense to keep tests for these compilers' quirks. gdb/testsuite/ChangeLog: * gdb.base/break.exp: Remove references to HP CC/aCC compilers. * gdb.base/call-ar-st.exp: Likewise. * gdb.base/callfuncs.exp: Likewise. * gdb.base/condbreak.exp: Likewise. * gdb.base/constvars.exp: Likewise. * gdb.base/hbreak2.exp: Likewise. * gdb.base/langs.exp: Likewise. * gdb.base/list.exp: Likewise. * gdb.base/long_long.exp: Likewise. * gdb.base/ptype.exp: Likewise. * gdb.base/scope.exp: Likewise. * gdb.base/signals.exp: Likewise. * gdb.base/so-impl-ld.exp: Likewise. * gdb.base/varargs.exp: Likewise. * gdb.base/volatile.exp: Likewise. * gdb.base/whatis.exp: Likewise. * gdb.cp/cplusfuncs.exp: Likewise. * gdb.cp/inherit.exp: Likewise. * gdb.cp/local.exp: Likewise. * gdb.cp/member-ptr.exp: Likewise. * gdb.cp/method.exp: Likewise. * gdb.cp/overload.exp: Likewise. * gdb.cp/templates.exp: Likewise. * gdb.stabs/weird.exp: Likewise. * lib/compiler.c: Likewise. * lib/compiler.cc: Likewise. * lib/cp-support.exp: Likewise. * lib/gdb.exp: Likewise.
2015-12-21Use arm_eabi_breakpoint on aarch32Yao Qi2-3/+8
This patch is to get b37a6290 back again, which was removed by d9311bfa by mistake. gdb/gdbserver: 2015-12-21 Yao Qi <yao.qi@linaro.org> * linux-aarch32-low.h [__aarch64__]: Use arm_abi_breakpoint arm breakpoint.
2015-12-21Fix building pdfs of assembler documentation.Nick Clifton2-11/+26
PR gas/19386 * doc/as.texinfo (Strings): Prepend a space to index entries that start with a backslash. This works around a problem in the pdf generator.
2015-12-21Minor reformatting fix in gdbtypes.c::create_array_type_with_strideJoel Brobecker2-2/+6
gdb/ChangeLog: * gdbtypes.c (create_array_type_with_stride): Fix indentation.
2015-12-21Automatic date update in version.inGDB Administrator1-1/+1
2015-12-20Remove HP-UX reference in testsuite/configure.acSimon Marchi3-4/+5
gdb/testsuite/ChangeLog: * configure.ac: Remove HP-UX case. * configure: Regenerate.
2015-12-20Automatic date update in version.inGDB Administrator1-1/+1
2015-12-19Fix ARI warning in gdb/arch/arm-get-next-pcs.cJoel Brobecker2-1/+6
gdb/ChangeLog: * arch/arm-get-next-pcs.c (arm_get_next_pcs_raw): Remove trailing newline at end of error message.
2015-12-18Reset pagination counts even when stdin is not a tty.Sandra Loosemore3-4/+8
2015-12-18 Sandra Loosemore <sandra@codesourcery.com> gdb/ * event-top.c (command_handler): Don't require stdin to be a tty for call to reinitialize_more_filter. * top.c (command_loop): Likewise.
2015-12-18Make prompt_for_continue call throw_quit directly.Sandra Loosemore2-1/+6
2015-12-18 Sandra Loosemore <sandra@codesourcery.com> gdb/ * utils.c (prompt_for_continue): Call throw_quit directly on 'q'.
2015-12-19Automatic date update in version.inGDB Administrator1-1/+1
2015-12-18Process 64-bit imm/disp only for 64-bit BFDH.J. Lu2-0/+13
We only need to store 32-bit immediate in 64-bit and optimize 64-bit displacement to 32-bit only for 64-bit BFD. * config/tc-i386.c (optimize_imm): Store 32-bit immediate in 64-bit only for 64-bit BFD (optimize_disp): Optimize 64-bit displacement to 32-bit only for 64-bit BFD.
2015-12-18Cast to enum bfd_endian in arm_get_next_pcs_read_memory_unsigned_integerAntoine Tremblay2-1/+7
This patch fixes the cxx build broken by commit : d9311bfaf572cf14af577a66e79c51c491553552. Pushed as obvious. gdb/ChangeLog: * arm-tdep.c (arm_get_next_pcs_read_memory_unsigned_integer): Cast to enum bfd_endian)
2015-12-18Add documentation to gdb_compileSimon Marchi2-0/+38
This patch adds some documentation to gdb_compile. It describes the various options that can influence compilation. Most of them are handled by DejaGnu, but are not really documented anywhere, so I think it's good to have a quick reference. Not all possible options are described, that would add way to much noise. I chose those that I think are relevant in the context of writing a test case. gdb/testsuite/ChangeLog: * lib/gdb.exp (gdb_compile): Add function doc.
2015-12-18Enable conditional breakpoints for targets that support software single step ↵Antoine Tremblay2-6/+6
in GDBServer This patch enables support for conditional breakpoints if the target supports software single step. This was disabled before as the implementations of software single step were too simple as discussed in https://sourceware.org/ml/gdb-patches/2015-04/msg01110.html. Since these issues are now fixed support can be added back. New tests passing : PASS: gdb.base/cond-eval-mode.exp: set breakpoint condition-evaluation target and related... No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } gdb/gdbserver/ChangeLog: * server.c (handle_query): Call target_supports_software_single_step.
2015-12-18Enable software single stepping for while-stepping actions in GDBServerAntoine Tremblay2-17/+37
This patch enables software single stepping if the targets support it, to do while-stepping actions. No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } gdb/gdbserver/ChangeLog: * linux-low.c (single_step): New function. (linux_resume_one_lwp_throw): Call single_step. (start_step_over): Likewise.
2015-12-18Support software single step on ARM in GDBServerAntoine Tremblay22-1361/+1924
This patch teaches GDBServer how to software single step on ARM linux by sharing code with GDB. The arm_get_next_pcs function in GDB is now shared with GDBServer. So that GDBServer can use the function to return the possible addresses of the next PC. A proper shared context was also needed so that we could share the code, this context is described in the arm_get_next_pcs structure. Testing : No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Append arm-get-next-pcs.o, arm-linux.o. (ALLDEPFILES): Append arm-get-next-pcs.c, arm-linux.c (arm-linux.o): New rule. (arm-get-next-pcs.o): New rule. * arch/arm-get-next-pcs.c: New file. * arch/arm-get-next-pcs.h: New file. * arch/arm-linux.h: New file. * arch/arm-linux.c: New file. * arm.c: Include common-regcache.c. (thumb_advance_itstate): Moved from arm-tdep.c. (arm_instruction_changes_pc): Likewise. (thumb_instruction_changes_pc): Likewise. (thumb2_instruction_changes_pc): Likewise. (shifted_reg_val): Likewise. * arm.h (submask): Move macro from arm-tdep.h (bit): Likewise. (bits): Likewise. (sbits): Likewise. (BranchDest): Likewise. (thumb_advance_itstate): Moved declaration from arm-tdep.h (arm_instruction_changes_pc): Likewise. (thumb_instruction_changes_pc): Likewise. (thumb2_instruction_changes_pc): Likewise. (shifted_reg_val): Likewise. * arm-linux-tdep.c: Include arch/arm.h, arch/arm-get-next-pcs.h arch/arm-linux.h. (arm_linux_get_next_pcs_ops): New struct. (ARM_SIGCONTEXT_R0, ARM_UCONTEXT_SIGCONTEXT, ARM_OLD_RT_SIGFRAME_SIGINFO, ARM_OLD_RT_SIGFRAME_UCONTEXT, ARM_NEW_RT_SIGFRAME_UCONTEXT, ARM_NEW_SIGFRAME_MAGIC): Move stack layout defines to arch/arm-linux.h. (arm_linux_sigreturn_next_pc_offset): Move to arch/arm-linux.c. (arm_linux_software_single_step): Adjust for arm_get_next_pcs implementation. * arm-tdep.c: Include arch/arm-get-next-pcs.h. (arm_get_next_pcs_ops): New struct. (submask): Move macro to arm.h. (bit): Likewise. (bits): Likewise. (sbits): Likewise. (BranchDest): Likewise. (thumb_instruction_changes_pc): Move to arm.c (thumb2_instruction_changes_pc): Likewise. (arm_instruction_changes_pc): Likewise. (shifted_reg_val): Likewise. (thumb_advance_itstate): Likewise. (thumb_get_next_pc_raw): Move to arm-get-next-pcs.c. (arm_get_next_pc_raw): Likewise. (arm_get_next_pc): Likewise. (thumb_deal_with_atomic_sequence_raw): Likewise. (arm_deal_with_atomic_sequence_raw): Likewise. (arm_deal_with_atomic_sequence): Likewise. (arm_get_next_pcs_read_memory_unsigned_integer): New function. (arm_get_next_pcs_addr_bits_remove): Likewise. (arm_get_next_pcs_syscall_next_pc): Likewise. (arm_get_next_pcs_is_thumb): Likewise. (arm_software_single_step): Adjust for arm_get_next_pcs implementation. * arm-tdep.h: (arm_get_next_pc): Remove declaration. (arm_get_next_pcs_read_memory_unsigned_integer): New declaration. (arm_get_next_pcs_addr_bits_remove): Likewise. (arm_get_next_pcs_syscall_next_pc): Likewise. (arm_get_next_pcs_is_thumb): Likewise. (arm_deal_with_atomic_sequence: Remove declaration. * common/gdb_vecs.h: Add CORE_ADDR vector definition. * configure.tgt (aarch64*-*-linux): Add arm-get-next-pcs.o, arm-linux.o. (arm*-wince-pe): Add arm-get-next-pcs.o. (arm*-*-linux*): Add arm-get-next-pcs.o, arm-linux.o, arm-get-next-pcs.o (arm*-*-netbsd*,arm*-*-knetbsd*-gnu): Add arm-get-next-pcs.o. (arm*-*-openbsd*): Likewise. (arm*-*-symbianelf*): Likewise. (arm*-*-*): Likewise. * symtab.h: Move CORE_ADDR vector definition to gdb_vecs.h. gdb/gdbserver/ChangeLog: * Makefile.in (SFILES): Append arch/arm-linux.c, arch/arm-get-next-pcs.c. (arm-linux.o): New rule. (arm-get-next-pcs.o): New rule. * configure.srv (arm*-*-linux*): Add arm-get-next-pcs.o, arm-linux.o. * linux-aarch32-low.c (arm_abi_breakpoint): Remove macro. Moved to linux-aarch32-low.c. (arm_eabi_breakpoint, arm_breakpoint): Likewise. (arm_breakpoint_len, thumb_breakpoint): Likewise. (thumb_breakpoint_len, thumb2_breakpoint): Likewise. (thumb2_breakpoint_len): Likewise. (arm_is_thumb_mode): Make non-static. * linux-aarch32-low.h (arm_abi_breakpoint): New macro. Moved from linux-aarch32-low.c. (arm_eabi_breakpoint, arm_breakpoint): Likewise. (arm_breakpoint_len, thumb_breakpoint): Likewise. (thumb_breakpoint_len, thumb2_breakpoint): Likewise. (thumb2_breakpoint_len): Likewise. (arm_is_thumb_mode): New declaration. * linux-arm-low.c: Include arch/arm-linux.h aarch/arm-get-next-pcs.h, sys/syscall.h. (get_next_pcs_ops): New struct. (get_next_pcs_addr_bits_remove): New function. (get_next_pcs_is_thumb): New function. (get_next_pcs_read_memory_unsigned_integer): Likewise. (arm_sigreturn_next_pc): Likewise. (get_next_pcs_syscall_next_pc): Likewise. (arm_gdbserver_get_next_pcs): Likewise. (struct linux_target_ops) <arm_gdbserver_get_next_pcs>: Initialize. * linux-low.h: Move CORE_ADDR vector definition to gdb_vecs.h. * server.h: Include gdb_vecs.h.
2015-12-18Share regcache function regcache_raw_read_unsignedAntoine Tremblay10-51/+119
This patch is in preparation for software single step support on ARM in GDBServer. It adds a new shared function regcache_raw_read_unsigned and regcache_raw_get_unsigned so that GDB and GDBServer can use the same call to fetch a raw register into an integer. No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } gdb/ChangeLog: * Makefile.in (SFILES): Append common/common-regcache.c. (COMMON_OBS): Append common/common-regcache.o. (common-regcache.o): New rule. * common/common-regcache.h (register_status) New enum. (regcache_raw_read_unsigned): New declaration. * common/common-regcache.c: New file. * regcache.h (enum register_status): Move to common-regcache.h. (regcache_raw_read_unsigned): Likewise. (regcache_raw_get_unsigned): Likewise. gdb/gdbserver/ChangeLog: * Makefile.in (SFILES): Append common/common-regcache.c. (OBS): Append common-regcache.o. (common-regcache.o): New rule. * regcache.c (init_register_cache): Initialize cache to REG_UNAVAILABLE. (regcache_raw_read_unsigned): New function. * regcache.h (REG_UNAVAILABLE, REG_VALID): Replaced by shared register_status enum.
2015-12-18Refactor arm_software_single_step to use regcacheAntoine Tremblay6-79/+212
This patch is in preparation for software single step support on ARM in GDBServer. It refactors arm_*_software_single_step and sub-functions to use regcache instead of frame to access registers so that the code can be shared more easily between GDB and GDBServer. Note also that since the intention is at some point to get rid of frame completely in that function, memory reads have also been replaced by read_memory_unsigned_integer rather than get_frame_memory_unsigned. No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } gdb/ChangeLog: * arm-linux-tdep.c (arm_linux_sigreturn_next_pc_offset): New function. (arm_linux_sigreturn_next_pc): Likewise. (arm_linux_syscall_next_pc): Use regcache instead of frame. (arm_linux_software_single_step): Likewise. * arm-tdep.c (arm_is_thumb): New function. (shifted_reg_va): Use regcache instead of frame. (thumb_get_next_pc_raw): Likewise. (arm_get_next_pc_raw): Likewise. (arm_get_next_pc): Likewise. (thumb_deal_with_atomic_sequence_raw): Likewise. (arm_deal_with_atomic_sequence_raw): Likewise. (arm_deal_with_atomic_sequence): Likewise. (arm_software_single_step): Likewise. * arm-tdep.h (struct gdbarch_tdep): Use regcache for syscall_next_pc. (arm_get_next_pc): Use regcache. (arm_deal_with_atomic_sequence): Likewise. (arm_is_thumb): New declaration. * regcache.c (regcache_raw_get_unsigned): New function. * regcache.h (regcache_raw_get_unsigned): New function declaration.
2015-12-18Share some ARM target dependent code from GDB with GDBServerAntoine Tremblay7-86/+109
This patch is in preparation for software single stepping support on ARM it shares some functions and definitions that will be needed. No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } Not tested: wince/bsd build. gdb/ChangeLog: * arch/arm.c (bitcount): Move from arm-tdep.c. (condition_true): Likewise. * arch/arm.h (Instruction Definitions): Move form arm-tdep.h. (condition_true): Move defenition from arm-tdep.h. (bitcount): Likewise. * arm-tdep.c (condition_true): Move to arch/arm.c. (bitcount): Likewise. * arm-tdep.h (Instruction Definitions): Move to arch/arm.h. * arm-wince-tdep.c: Include arch/arm.h. * armnbsd-tdep.c: Likewise.
2015-12-18Replace breakpoint_reinsert_addr by get_next_pcs operation in GDBServerAntoine Tremblay11-13/+53
This patch in preparation for software single step support on ARM. It refactors breakpoint_reinsert_addr into get_next_pcs so that multiple location can be returned. When software single stepping there can be multiple possible next addresses because we're stepping over a conditional branch instruction, for example. The operation get_next_pcs handles that by returning a vector of all the possible next addresses. Software breakpoints are installed at each location returned. No regressions, tested on ubuntu 14.04 ARMv7 and x86. With gdbserver-{native,extended} / { -marm -mthumb } gdb/gdbserver/ChangeLog: * linux-aarch64-low.c (the_low_targets): Rename breakpoint_reinsert_addr to get_next_pcs. * linux-arm-low.c (the_low_targets): Likewise. * linux-bfin-low.c (the_low_targets): Likewise. * linux-cris-low.c (the_low_targets): Likewise. * linux-crisv32-low.c (the_low_targets): Likewise. * linux-low.c (can_software_single_step): Likewise. (install_software_single_step_breakpoints): New function. (start_step_over): Use install_software_single_step_breakpoints. * linux-low.h: New CORE_ADDR vector. (struct linux_target_ops) Rename breakpoint_reinsert_addr to get_next_pcs. * linux-mips-low.c (the_low_targets): Likewise. * linux-nios2-low.c (the_low_targets): Likewise. * linux-sparc-low.c (the_low_targets): Likewise.
2015-12-18Fix formatting in coff-x86_64.cH.J. Lu2-48/+54
* coff-x86_64.c (coff_amd64_reloc): Fix formatting.
2015-12-18Fix formatting of coff-i386.cNick Clifton2-32/+36
* coff-i386.c (coff_i386_reloc): Fix formatting.
2015-12-17Implement --long-plt flag (ARM only).Peter Collingbourne3-21/+127
gold/ PR gold/18780 * arm.cc (Target_arm::do_make_data_plt): Choose PLT generator based on value of --long-plt flag. (Output_data_plt_arm_standard::do_get_plt_entry_size): Moved to Output_data_plt_arm_short. (Output_data_plt_arm_standard::do_fill_plt_entry): Likewise. (Output_data_plt_arm_standard::plt_entry): Likewise. (Output_data_plt_arm_standard::do_fill_first_plt_entry): Fix variable reference. (Output_data_plt_arm_short): New class. (Output_data_plt_arm_short::do_fill_plt_entry): Error out on too large PLT offsets instead of asserting. (Output_data_plt_arm_long): New class. * options.h (General_options): Define --long-plt flag.
2015-12-18Automatic date update in version.inGDB Administrator1-1/+1
2015-12-17MAINTAINERS: Add myself as MIPS maintainerMaciej W. Rozycki2-0/+5
binutils/ * MAINTAINERS: Add myself as MIPS maintainer.
2015-12-17[Patch ARM] Fix build attributes for armv8-a in case of assembler files that ↵Ramana Radhakrishnan1-0/+9
contain no directives. Add missing ChangeLog entry.
2015-12-17Fix PR threads/19354: "info threads" error with multiple inferiorsPedro Alves5-34/+81
Note: this applies on top of: [PATCH] Remove support for LinuxThreads and vendor 2.4 kernels w/ backported NPTL https://sourceware.org/ml/gdb-patches/2015-12/msg00214.html We try to avoid using libthread_db.so to list threads in the inferior when debugging live processes, but the code that decides whether to use it decides incorrectly if you have more than one inferior, and the current inferior doesn't have execution yet. The result is visible as: (gdb) add-inferior Added inferior 2 (gdb) inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] (gdb) info inferiors Num Description Executable 1 process 15397 /home/pedro/gdb/tests/threads * 2 <null> (gdb) info threads Cannot find new threads: generic error (gdb) Fix this by checking whether each inferior has execution rather than just the current inferior. By moving the core updating to linux-nat.c's update_thread_list implementation, this also ends up fixing the lwp-last-seen-running-on-core updating in the case we're debugging a program that uses raw clone rather than pthreads, as linux-thread-db.c isn't pushed in the target stack in that scenario. Tested on x86_64 Fedora 20. gdb/ChangeLog: 2015-12-17 Pedro Alves <palves@redhat.com> PR threads/19354 * linux-nat.c (linux_nat_update_thread_list): Update process cores each lwp was last seen running on here. * linux-thread-db.c (update_thread_core): Delete. (thread_db_update_thread_list_td_ta_thr_iter): Rename to ... (thread_db_update_thread_list): ... this. Skip inferiors with execution. Also call the target beneath. (thread_db_update_thread_list): Delete. gdb/testsuite/ChangeLog: 2015-12-17 Pedro Alves <palves@redhat.com> PR threads/19354 * gdb.multi/info-threads.exp: New file.
2015-12-17Remove support for LinuxThreads and vendor 2.4 kernels w/ backported NPTLPedro Alves12-541/+171
Since we now rely on PTRACE_EVENT_CLONE being available (added in Linux 2.5.46), we're relying on NPTL. This commit removes the support for older LinuxThreads, as well as the workarounds for vendor 2.4 kernels with NPTL backported. - Rely on tkill being available. - Assume gdb doesn't get cancel signals. - Remove code that checks the LinuxThreads restart and cancel signals in the inferior. - Assume that __WALL is available. - Assume that non-leader threads report WIFEXITED. - Thus, no longer need to send signal 0 to check whether threads are still alive. - Update comments throughout. Tested on x86_64 Fedora 20, native and gdbserver. gdb/ChangeLog: * configure.ac: Remove tkill checks. * configure, config.in: Regenerate. * linux-nat.c: Remove HAVE_TKILL_SYSCALL check. Update top level comments. (linux_nat_post_attach_wait): Remove 'cloned' parameter. Use __WALL. (attach_proc_task_lwp_callback): Don't set the cloned flag. (linux_nat_attach): Adjust. (kill_lwp): Remove HAVE_TKILL_SYSCALL check. No longer fall back to 'kill'. (linux_handle_extended_wait): Use __WALL. Don't set the cloned flag. (wait_lwp): Use __WALL. Update comments. (running_callback, stop_and_resume_callback): Delete. (linux_nat_filter_event): Don't stop and resume all lwps. Don't check if the event LWP has previously exited. (check_zombie_leaders): Update comments. (linux_nat_wait_1): Use __WALL. (kill_wait_callback): Don't handle clone processes separately. Use __WALL instead. (linux_thread_alive): Delete. (linux_nat_thread_alive): Return true as long as the LWP is in the LWP list. (linux_nat_update_thread_list): Assume the kernel supports PTRACE_EVENT_CLONE. (get_signo): Delete. (lin_thread_get_thread_signals): Remove LinuxThreads references. No longer check __pthread_sig_restart / __pthread_sig_cancel in the inferior. * linux-nat.h (struct lwp_info) <cloned>: Delete field. * linux-thread-db.c: Update comments. (_initialize_thread_db): Remove LinuxThreads references. * nat/linux-waitpid.c (my_waitpid): No longer emulate __WALL. Pass down flags unmodified. * linux-waitpid.h (my_waitpid): Update documentation. gdb/gdbserver/ChangeLog: * linux-low.c (linux_kill_one_lwp): Remove references to LinuxThreads. (kill_lwp): Remove HAVE_TKILL_SYSCALL check. No longer fall back to 'kill'. (linux_init_signals): Delete. (initialize_low): Adjust. * thread-db.c (thread_db_init): Remove LinuxThreads reference.
2015-12-17Fix one heap buffer overflow in aarch64_push_dummy_callYao Qi2-3/+12
Hi, AddressSanitizer reports an error like this, (gdb) PASS: gdb.base/call-ar-st.exp: continue to tbreak9 print print_long_arg_list(a, b, c, d, e, f, *struct1, *struct2, *struct3, *struct4, *flags, *flags_combo, *three_char, *five_char, *int_char_combo, *d1, *d2, *d3, *f1, *f2, *f3) ================================================================= ==6236==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200008eb50 at pc 0x89e432 bp 0x7fffa3df9080 sp 0x7fffa3df9078 READ of size 5 at 0x60200008eb50 thread T0 #0 0x89e431 in memory_xfer_partial gdb/target.c:1264 #1 0x89e6c7 in target_xfer_partial gdb/target.c:1320 #2 0x89f267 in target_write_partial gdb/target.c:1595^M #3 0x8a014b in target_write_with_progress gdb/target.c:1889^M #4 0x8a0262 in target_write gdb/target.c:1914^M #5 0x89ee59 in target_write_memory gdb/target.c:1492^M #6 0x9a1c74 in write_memory gdb/corefile.c:393^M #7 0x467ea5 in aarch64_push_dummy_call gdb/aarch64-tdep.c:1388 The problem is that an instance of stack_item_t is created to adjust stack for alignment, the item.len is correct, but item.data is buf, which is wrong, because item.len can be greater than the length of buf. This patch sets item.data to NULL, and only update sp (no inferior memory writes on stack for this item). gdb: 2015-12-17 Yao Qi <yao.qi@linaro.org> * aarch64-tdep.c (struct stack_item_t): Update comments. (pass_on_stack): Set item.data to NULL. (aarch64_push_dummy_call): Call write_memory if si->data isn't NULL.
2015-12-17[Patch ARM] Fix build attributes for armv8-a in case of assembler files that ↵Ramana Radhakrishnan6-3/+31
contain no directives. There is currently a problem in the way in which we produce build attributes for simple assembler files that have armv8-a instructions. In these case we need to generate TAG_ISA_THUMB_Use to be Thumb-2 and set the architecture profile to be 'A' rather than not setting architecture profile to be 'A' and setting TAG_ISA_THUMB_Use to be Thumb-1. This is a pre-requisite for any v8-m patches that have been posted. arm-none-eabi gas testsuite run. no regressions. 2015-12-17 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com> * gas/config/tc-arm.c (aeabi_set_public_attributes): Adjust TAG_ARCH_profile for armv8-a. * gas/testsuite/gas/arm/armv8a-automatic-hlt.d: New test. * gas/testsuite/gas/arm/armv8a-automatic-hlt.s: New test. * gas/testsuite/gas/arm/armv8a-automatic-lda.d: New test. * gas/testsuite/gas/arm/armv8a-automatic-lda.s: New test.
2015-12-17Add forgotten ChangeLog updates for 72d98d16ed09584660d0cbb759d90f8dfeef2343:Christophe Lyon5-0/+47
2015-12-16 Mickael Guene <mickael.guene@st.com> bfd/ * bfd-in2.h: Regenerate. * reloc.c: Add new relocations. * libbfd.h (bfd_reloc_code_real_names): Add new relocations display names. * elf32-arm.c (elf32_arm_howto_table_1): Add HOWTO for new relocations. (elf32_arm_reloc_map): Add bfd/arm mapping for new relocations. (elf32_arm_final_link_relocate): Implement new relocations resolution. gas/ * doc/c-arm.texi: Add documentation about new directives * config/tc-arm.c (group_reloc_table): Add mapping between gas syntax and new relocations. (do_t_add_sub): Keep new relocations for add operand. (do_t_mov_cmp): Keep new relocations for mov operand. (insns): Use 'shifter operand with possible group relocation' operand parse code for movs operand. (md_apply_fix): Implement mov and add encoding when new relocations on them. (tc_gen_reloc): Add new relocations. (arm_fix_adjustable): Since offset has a limited range ([0:255]) we disable adjust_reloc_syms() for new relocations. gas/testsuite/ * gas/arm/adds-thumb1-reloc-local.d: New * gas/arm/adds-thumb1-reloc-local.s: New * gas/arm/movs-thumb1-reloc-local.d: New * gas/arm/movs-thumb1-reloc-local.s: New include/ * elf/arm.h: Add new arm relocations. ld/testsuite/ * ld-arm/arm-elf.exp (armelftests_common): Add new relocations tests. * ld-arm/thumb1-adds.d: New * ld-arm/thumb1-adds.s: New * ld-arm/thumb1-movs.d: New * ld-arm/thumb1-movs.s: New
2015-12-16PR gold/17473: Fix gold build with system C++ headers that use <ctype.h>.Roland McGrath2-2/+13
gold/ PR gold/17473 * binary.cc: Move #include "safe-ctype.h" to be last #include.
2015-12-17Automatic date update in version.inGDB Administrator1-1/+1
2015-12-16Fix -Wno-unknown-warning support detectionPedro Alves6-8/+56
Ref: https://sourceware.org/ml/gdb/2015-12/msg00024.html We have code in configure.ac that tries to detect whether the compiler supports each warning and suppress it if not, but that doesn't work with "-Wno-" options, because gcc doesn't error out for -Wno-unknown-warning unless other diagnostics are being produced. See https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html. Handle this by checking whether -Wfoo works when we actually want -Wno-foo. gdb/ChangeLog: 2015-12-16 Pedro Alves <palves@redhat.com> * configure.ac (compiler warning flags): When testing a -Wno-foo option, check whether -Wfoo works instead. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-12-16 Pedro Alves <palves@redhat.com> * configure.ac (compiler warning flags): When testing a -Wno-foo option, check whether -Wfoo works instead. * configure: Regenerate.
2015-12-16[C++] Fix -Winvalid-offsetof warnings with g++ 4.4Pedro Alves2-10/+40
Ref: https://sourceware.org/ml/gdb/2015-12/msg00014.html Fixes the build in C++ mode with g++ 4.4: gdb/btrace.h: In function ‘size_t VEC_btrace_insn_s_embedded_size(int)’: gdb/btrace.h:84: error: invalid access to non-static data member ‘VEC_btrace_insn_s::vec’ of NULL object gdb/btrace.h:84: error: (perhaps the ‘offsetof’ macro was used incorrectly) gdb/btrace.h: In function ‘VEC_btrace_insn_s* VEC_btrace_insn_s_alloc(int)’: gdb/btrace.h:84: error: invalid access to non-static data member ‘VEC_btrace_insn_s::vec’ of NULL object gdb/btrace.h:84: error: (perhaps the ‘offsetof’ macro was used incorrectly) gdb/btrace.h: In function ‘VEC_btrace_insn_s* VEC_btrace_insn_s_copy(VEC_btrace_insn_s*)’: gdb/btrace.h:84: error: invalid access to non-static data member ‘VEC_btrace_insn_s::vec’ of NULL object gdb/btrace.h:84: error: (perhaps the ‘offsetof’ macro was used incorrectly) gdb/btrace.h: In function ‘VEC_btrace_insn_s* VEC_btrace_insn_s_merge(VEC_btrace_insn_s*, VEC_btrace_insn_s*)’: gdb/btrace.h:84: error: invalid access to non-static data member ‘VEC_btrace_insn_s::vec’ of NULL object gdb/btrace.h:84: error: (perhaps the ‘offsetof’ macro was used incorrectly) gdb/btrace.h: In function ‘int VEC_btrace_insn_s_reserve(VEC_btrace_insn_s**, int, const char*, unsigned int)’: gdb/btrace.h:84: error: invalid access to non-static data member ‘VEC_btrace_insn_s::vec’ of NULL object gdb/btrace.h:84: error: (perhaps the ‘offsetof’ macro was used incorrectly) gdb/ChangeLog: 2015-12-16 Pedro Alves <palves@redhat.com> * common/vec.h (vec_offset): New macro. (DEF_VEC_ALLOC_FUNC_I, DEF_VEC_ALLOC_FUNC_O): Use it instead of offsetof.
2015-12-16[ARM] Add support for thumb1 pcrop relocations.Mickael Guene16-6/+458
To support thumb1 execute-only code we need to support four new relocations (R_ARM_THM_ALU_ABS_G0_NC, R_ARM_THM_ALU_ABS_G1_NC, R_ARM_THM_ALU_ABS_G2_NC and R_ARM_THM_ALU_ABS_G3_NC). These relocations allow the static linker to finalize construction of symbol address. Typical sequence of code to get address of the symbol foo is then the following : movs r3, #:upper8_15:#foo lsls r3, #8 adds r3, #:upper0_7:#foo lsls r3, #8 adds r3, #:lower8_15:#foo lsls r3, #8 adds r3, #:lower0_7:#foo This will give following sequence of text and relocations after assembly : 4: 2300 movs r3, #0 4: R_ARM_THM_ALU_ABS_G3_NC foo 6: 021b lsls r3, r3, #8 8: 3300 adds r3, #0 8: R_ARM_THM_ALU_ABS_G2_NC foo a: 021b lsls r3, r3, #8 c: 3300 adds r3, #0 c: R_ARM_THM_ALU_ABS_G1_NC foo e: 021b lsls r3, r3, #8 10: 3300 adds r3, #0 10: R_ARM_THM_ALU_ABS_G0_NC foo
2015-12-16Automatic date update in version.inGDB Administrator1-1/+1
2015-12-15[ARM] Enable CRC by default for ARMv8.1 and later.Matthew Wahab2-3/+11
ARMv8.1 includes CRC as a required extension but the +crc feature isn't enabled by -march=armv8.1-a as it should be. This patch fixes that. opcode/include 2015-12-15 Matthew Wahab <matthew.wahab@arm.com> * arm.h (ARM_ARCH_V8_1A): Add the CRC_EXT_ARMV8 co-processor feature macro. (ARM_ARCH_V8_2A): Likewise. Change-Id: Id1fe0e6fa51dede19d61e1fd08e68628ea1b1e9e
2015-12-15Remove refernces to a non-existent silicon errata.Nick Clifton3-14/+9
* doc/c-msp430.texi (MSP430 Options): Remove references to a non-existent silicon errata. * config/tc-msp430.c: Likewise.
2015-12-15Tweak gdb.trace/ftrace.exp for aarch64Yao Qi2-0/+7
Some tests are skipped on aarch64 unexpectedly because arg0exp isn't set. This patch is to set arg0exp to "$x0" for aarch64. gdb/testsuite: 2015-12-15 Yao Qi <yao.qi@linaro.org> * gdb.trace/ftrace.exp: Set arg0exp to "$x0" if target is aarch64*-*-*.
2015-12-15bfd: don't produce corrupt COFF symbol table due to long ELF file name symbolsJan Beulich5-14/+61
The re-writing logic in _bfd_coff_final_link() overwrote the ".file" part of the symbol table entry, due to not coping with the auxiliary entry generated in all cases. Note that while I would have wanted to add a test case, (a) I didn't spot any one testing the base functionality here, and (b) I wasn't able to figure out proper conditionals to use in e.g. ld-elf/elf.exp to check for the necessary PE/PE+ support (which varies by target).
2015-12-15Fix invalid left shift of negative valueDominik Vogt11-33/+55
Fix occurrences of left-shifting negative constants in C code. sim/arm/ChangeLog: * thumbemu.c (handle_T2_insn): Fix left shift of negative value. * armemu.c (handle_v6_insn): Likewise. sim/avr/ChangeLog: * interp.c (sign_ext): Fix left shift of negative value. sim/mips/ChangeLog: * micromips.igen (process_isa_mode): Fix left shift of negative value. sim/msp430/ChangeLog: * msp430-sim.c (get_op, put_op): Fix left shift of negative value. sim/v850/ChangeLog: * simops.c (v850_bins): Fix left shift of negative value.
2015-12-15Update the copyright notices in the affected files.Nick Clifton5-12/+12
PR 19339 * elf-vxworks.h: Update copyright notice. * elf-vxworks.c: Update copyright notice. * elf-nacl.h: Update copyright notice. * elf-nacl.c: Update copyright notice.
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