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6c2659886f
I'd like to enable the -Wmissing-declarations warning. However, it
warns for every _initialize function, for example:
CXX dcache.o
/home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
/home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
_initialize_dcache (void)
^~~~~~~~~~~~~~~~~~
The only practical way forward I found is to add back the declarations,
which were removed by this commit:
commit 481695ed5f
Author: John Baldwin <jhb@FreeBSD.org>
Date: Sat Sep 9 11:02:37 2017 -0700
Remove unnecessary function prototypes.
I don't think it's a big problem to have the declarations for these
functions, but if anybody has a better solution for this, I'll be happy
to use it.
gdb/ChangeLog:
* aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration.
* aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration.
* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration.
* aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration.
* aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration.
* aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration.
* ada-exp.y (_initialize_ada_exp): Add declaration.
* ada-lang.c (_initialize_ada_language): Add declaration.
* ada-tasks.c (_initialize_tasks): Add declaration.
* agent.c (_initialize_agent): Add declaration.
* aix-thread.c (_initialize_aix_thread): Add declaration.
* alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration.
* alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration.
* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration.
* alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration.
* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration.
* alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
* amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration.
* amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration.
* amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration.
* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration.
* amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration.
* amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration.
* amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration.
* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration.
* amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration.
* amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration.
* amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration.
* amd64-tdep.c (_initialize_amd64_tdep): Add declaration.
* amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration.
* amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration.
* annotate.c (_initialize_annotate): Add declaration.
* arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration.
* arc-tdep.c (_initialize_arc_tdep): Add declaration.
* arch-utils.c (_initialize_gdbarch_utils): Add declaration.
* arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration.
* arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration.
* arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration.
* arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration.
* arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration.
* arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration.
* arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration.
* arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration.
* arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration.
* arm-tdep.c (_initialize_arm_tdep): Add declaration.
* arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration.
* auto-load.c (_initialize_auto_load): Add declaration.
* auxv.c (_initialize_auxv): Add declaration.
* avr-tdep.c (_initialize_avr_tdep): Add declaration.
* ax-gdb.c (_initialize_ax_gdb): Add declaration.
* bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration.
* bfin-tdep.c (_initialize_bfin_tdep): Add declaration.
* break-catch-sig.c (_initialize_break_catch_sig): Add declaration.
* break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration.
* break-catch-throw.c (_initialize_break_catch_throw): Add declaration.
* breakpoint.c (_initialize_breakpoint): Add declaration.
* bsd-uthread.c (_initialize_bsd_uthread): Add declaration.
* btrace.c (_initialize_btrace): Add declaration.
* charset.c (_initialize_charset): Add declaration.
* cli/cli-cmds.c (_initialize_cli_cmds): Add declaration.
* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
* cli/cli-logging.c (_initialize_cli_logging): Add declaration.
* cli/cli-script.c (_initialize_cli_script): Add declaration.
* cli/cli-style.c (_initialize_cli_style): Add declaration.
* coff-pe-read.c (_initialize_coff_pe_read): Add declaration.
* coffread.c (_initialize_coffread): Add declaration.
* compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration.
* compile/compile.c (_initialize_compile): Add declaration.
* complaints.c (_initialize_complaints): Add declaration.
* completer.c (_initialize_completer): Add declaration.
* copying.c (_initialize_copying): Add declaration.
* corefile.c (_initialize_core): Add declaration.
* corelow.c (_initialize_corelow): Add declaration.
* cp-abi.c (_initialize_cp_abi): Add declaration.
* cp-namespace.c (_initialize_cp_namespace): Add declaration.
* cp-support.c (_initialize_cp_support): Add declaration.
* cp-valprint.c (_initialize_cp_valprint): Add declaration.
* cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration.
* cris-tdep.c (_initialize_cris_tdep): Add declaration.
* csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration.
* csky-tdep.c (_initialize_csky_tdep): Add declaration.
* ctfread.c (_initialize_ctfread): Add declaration.
* d-lang.c (_initialize_d_language): Add declaration.
* darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration.
* darwin-nat.c (_initialize_darwin_nat): Add declaration.
* dbxread.c (_initialize_dbxread): Add declaration.
* dcache.c (_initialize_dcache): Add declaration.
* disasm-selftests.c (_initialize_disasm_selftests): Add declaration.
* disasm.c (_initialize_disasm): Add declaration.
* dtrace-probe.c (_initialize_dtrace_probe): Add declaration.
* dummy-frame.c (_initialize_dummy_frame): Add declaration.
* dwarf-index-cache.c (_initialize_index_cache): Add declaration.
* dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration.
* dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration.
* dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration.
* dwarf2expr.c (_initialize_dwarf2expr): Add declaration.
* dwarf2loc.c (_initialize_dwarf2loc): Add declaration.
* dwarf2read.c (_initialize_dwarf2_read): Add declaration.
* elfread.c (_initialize_elfread): Add declaration.
* exec.c (_initialize_exec): Add declaration.
* extension.c (_initialize_extension): Add declaration.
* f-lang.c (_initialize_f_language): Add declaration.
* f-valprint.c (_initialize_f_valprint): Add declaration.
* fbsd-nat.c (_initialize_fbsd_nat): Add declaration.
* fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration.
* filesystem.c (_initialize_filesystem): Add declaration.
* findcmd.c (_initialize_mem_search): Add declaration.
* findvar.c (_initialize_findvar): Add declaration.
* fork-child.c (_initialize_fork_child): Add declaration.
* frame-base.c (_initialize_frame_base): Add declaration.
* frame-unwind.c (_initialize_frame_unwind): Add declaration.
* frame.c (_initialize_frame): Add declaration.
* frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration.
* frv-tdep.c (_initialize_frv_tdep): Add declaration.
* ft32-tdep.c (_initialize_ft32_tdep): Add declaration.
* gcore.c (_initialize_gcore): Add declaration.
* gdb-demangle.c (_initialize_gdb_demangle): Add declaration.
* gdb_bfd.c (_initialize_gdb_bfd): Add declaration.
* gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration.
* gdbarch.c (_initialize_gdbarch): Add declaration.
* gdbtypes.c (_initialize_gdbtypes): Add declaration.
* gnu-nat.c (_initialize_gnu_nat): Add declaration.
* gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration.
* gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration.
* go-lang.c (_initialize_go_language): Add declaration.
* go32-nat.c (_initialize_go32_nat): Add declaration.
* guile/guile.c (_initialize_guile): Add declaration.
* h8300-tdep.c (_initialize_h8300_tdep): Add declaration.
* hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration.
* hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration.
* hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration.
* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration.
* hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration.
* hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration.
* hppa-tdep.c (_initialize_hppa_tdep): Add declaration.
* i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration.
* i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration.
* i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration.
* i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration.
* i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration.
* i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration.
* i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration.
* i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration.
* i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration.
* i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration.
* i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration.
* i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration.
* i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration.
* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration.
* i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration.
* i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration.
* i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration.
* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration.
* i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration.
* i386-tdep.c (_initialize_i386_tdep): Add declaration.
* i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration.
* ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration.
* ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration.
* ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration.
* ia64-tdep.c (_initialize_ia64_tdep): Add declaration.
* ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration.
* infcall.c (_initialize_infcall): Add declaration.
* infcmd.c (_initialize_infcmd): Add declaration.
* inflow.c (_initialize_inflow): Add declaration.
* infrun.c (_initialize_infrun): Add declaration.
* interps.c (_initialize_interpreter): Add declaration.
* iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration.
* jit.c (_initialize_jit): Add declaration.
* language.c (_initialize_language): Add declaration.
* linux-fork.c (_initialize_linux_fork): Add declaration.
* linux-nat.c (_initialize_linux_nat): Add declaration.
* linux-tdep.c (_initialize_linux_tdep): Add declaration.
* linux-thread-db.c (_initialize_thread_db): Add declaration.
* lm32-tdep.c (_initialize_lm32_tdep): Add declaration.
* m2-lang.c (_initialize_m2_language): Add declaration.
* m32c-tdep.c (_initialize_m32c_tdep): Add declaration.
* m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration.
* m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration.
* m32r-tdep.c (_initialize_m32r_tdep): Add declaration.
* m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration.
* m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration.
* m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration.
* m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration.
* m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration.
* m68k-tdep.c (_initialize_m68k_tdep): Add declaration.
* machoread.c (_initialize_machoread): Add declaration.
* macrocmd.c (_initialize_macrocmd): Add declaration.
* macroscope.c (_initialize_macroscope): Add declaration.
* maint-test-options.c (_initialize_maint_test_options): Add declaration.
* maint-test-settings.c (_initialize_maint_test_settings): Add declaration.
* maint.c (_initialize_maint_cmds): Add declaration.
* mdebugread.c (_initialize_mdebugread): Add declaration.
* memattr.c (_initialize_mem): Add declaration.
* mep-tdep.c (_initialize_mep_tdep): Add declaration.
* mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration.
* mi/mi-cmds.c (_initialize_mi_cmds): Add declaration.
* mi/mi-interp.c (_initialize_mi_interp): Add declaration.
* mi/mi-main.c (_initialize_mi_main): Add declaration.
* microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration.
* microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration.
* mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration.
* mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration.
* mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration.
* mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration.
* mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration.
* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration.
* mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration.
* mips-tdep.c (_initialize_mips_tdep): Add declaration.
* mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration.
* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration.
* mipsread.c (_initialize_mipsread): Add declaration.
* mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration.
* mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration.
* moxie-tdep.c (_initialize_moxie_tdep): Add declaration.
* msp430-tdep.c (_initialize_msp430_tdep): Add declaration.
* nds32-tdep.c (_initialize_nds32_tdep): Add declaration.
* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration.
* nios2-tdep.c (_initialize_nios2_tdep): Add declaration.
* nto-procfs.c (_initialize_procfs): Add declaration.
* objc-lang.c (_initialize_objc_language): Add declaration.
* observable.c (_initialize_observer): Add declaration.
* opencl-lang.c (_initialize_opencl_language): Add declaration.
* or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration.
* or1k-tdep.c (_initialize_or1k_tdep): Add declaration.
* osabi.c (_initialize_gdb_osabi): Add declaration.
* osdata.c (_initialize_osdata): Add declaration.
* p-valprint.c (_initialize_pascal_valprint): Add declaration.
* parse.c (_initialize_parse): Add declaration.
* ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration.
* ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration.
* ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration.
* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration.
* ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration.
* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration.
* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration.
* ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration.
* printcmd.c (_initialize_printcmd): Add declaration.
* probe.c (_initialize_probe): Add declaration.
* proc-api.c (_initialize_proc_api): Add declaration.
* proc-events.c (_initialize_proc_events): Add declaration.
* proc-service.c (_initialize_proc_service): Add declaration.
* procfs.c (_initialize_procfs): Add declaration.
* producer.c (_initialize_producer): Add declaration.
* psymtab.c (_initialize_psymtab): Add declaration.
* python/python.c (_initialize_python): Add declaration.
* ravenscar-thread.c (_initialize_ravenscar): Add declaration.
* record-btrace.c (_initialize_record_btrace): Add declaration.
* record-full.c (_initialize_record_full): Add declaration.
* record.c (_initialize_record): Add declaration.
* regcache-dump.c (_initialize_regcache_dump): Add declaration.
* regcache.c (_initialize_regcache): Add declaration.
* reggroups.c (_initialize_reggroup): Add declaration.
* remote-notif.c (_initialize_notif): Add declaration.
* remote-sim.c (_initialize_remote_sim): Add declaration.
* remote.c (_initialize_remote): Add declaration.
* reverse.c (_initialize_reverse): Add declaration.
* riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration.
* riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration.
* riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration.
* riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration.
* riscv-tdep.c (_initialize_riscv_tdep): Add declaration.
* rl78-tdep.c (_initialize_rl78_tdep): Add declaration.
* rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration.
* rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep):
Add declaration.
* rs6000-nat.c (_initialize_rs6000_nat): Add declaration.
* rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration.
* run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration.
* rust-exp.y (_initialize_rust_exp): Add declaration.
* rx-tdep.c (_initialize_rx_tdep): Add declaration.
* s12z-tdep.c (_initialize_s12z_tdep): Add declaration.
* s390-linux-nat.c (_initialize_s390_nat): Add declaration.
* s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration.
* s390-tdep.c (_initialize_s390_tdep): Add declaration.
* score-tdep.c (_initialize_score_tdep): Add declaration.
* ser-go32.c (_initialize_ser_dos): Add declaration.
* ser-mingw.c (_initialize_ser_windows): Add declaration.
* ser-pipe.c (_initialize_ser_pipe): Add declaration.
* ser-tcp.c (_initialize_ser_tcp): Add declaration.
* ser-uds.c (_initialize_ser_socket): Add declaration.
* ser-unix.c (_initialize_ser_hardwire): Add declaration.
* serial.c (_initialize_serial): Add declaration.
* sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration.
* sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration.
* sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration.
* sh-tdep.c (_initialize_sh_tdep): Add declaration.
* skip.c (_initialize_step_skip): Add declaration.
* sol-thread.c (_initialize_sol_thread): Add declaration.
* solib-aix.c (_initialize_solib_aix): Add declaration.
* solib-darwin.c (_initialize_darwin_solib): Add declaration.
* solib-dsbt.c (_initialize_dsbt_solib): Add declaration.
* solib-frv.c (_initialize_frv_solib): Add declaration.
* solib-svr4.c (_initialize_svr4_solib): Add declaration.
* solib-target.c (_initialize_solib_target): Add declaration.
* solib.c (_initialize_solib): Add declaration.
* source-cache.c (_initialize_source_cache): Add declaration.
* source.c (_initialize_source): Add declaration.
* sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration.
* sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration.
* sparc-nat.c (_initialize_sparc_nat): Add declaration.
* sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration.
* sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration.
* sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration.
* sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration.
* sparc-tdep.c (_initialize_sparc_tdep): Add declaration.
* sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration.
* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration.
* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration.
* sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration.
* sparc64-nat.c (_initialize_sparc64_nat): Add declaration.
* sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration.
* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration.
* sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration.
* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration.
* sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration.
* sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration.
* stabsread.c (_initialize_stabsread): Add declaration.
* stack.c (_initialize_stack): Add declaration.
* stap-probe.c (_initialize_stap_probe): Add declaration.
* std-regs.c (_initialize_frame_reg): Add declaration.
* symfile-debug.c (_initialize_symfile_debug): Add declaration.
* symfile-mem.c (_initialize_symfile_mem): Add declaration.
* symfile.c (_initialize_symfile): Add declaration.
* symmisc.c (_initialize_symmisc): Add declaration.
* symtab.c (_initialize_symtab): Add declaration.
* target.c (_initialize_target): Add declaration.
* target-connection.c (_initialize_target_connection): Add
declaration.
* target-dcache.c (_initialize_target_dcache): Add declaration.
* target-descriptions.c (_initialize_target_descriptions): Add declaration.
* thread.c (_initialize_thread): Add declaration.
* tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration.
* tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration.
* tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration.
* tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration.
* tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration.
* tracectf.c (_initialize_ctf): Add declaration.
* tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration.
* tracefile.c (_initialize_tracefile): Add declaration.
* tracepoint.c (_initialize_tracepoint): Add declaration.
* tui/tui-hooks.c (_initialize_tui_hooks): Add declaration.
* tui/tui-interp.c (_initialize_tui_interp): Add declaration.
* tui/tui-layout.c (_initialize_tui_layout): Add declaration.
* tui/tui-regs.c (_initialize_tui_regs): Add declaration.
* tui/tui-stack.c (_initialize_tui_stack): Add declaration.
* tui/tui-win.c (_initialize_tui_win): Add declaration.
* tui/tui.c (_initialize_tui): Add declaration.
* typeprint.c (_initialize_typeprint): Add declaration.
* ui-style.c (_initialize_ui_style): Add declaration.
* unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration.
* unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration.
* unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration.
* unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration.
* unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration.
* unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration.
* unittests/filtered_iterator-selftests.c
(_initialize_filtered_iterator_selftests): Add declaration.
* unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration.
* unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration.
* unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration.
* unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration.
* unittests/main-thread-selftests.c
(_initialize_main_thread_selftests): Add declaration.
* unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration.
* unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration.
* unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration.
* unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration.
* unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration.
* unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration.
* unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration.
* unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration.
* unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration.
* unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration.
* unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration.
* unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration.
* unittests/style-selftests.c (_initialize_style_selftest): Add declaration.
* unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration.
* unittests/tui-selftests.c (_initialize_tui_selftest): Add
declaration.
* unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration.
* unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration.
* unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration.
* unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration.
* user-regs.c (_initialize_user_regs): Add declaration.
* utils.c (_initialize_utils): Add declaration.
* v850-tdep.c (_initialize_v850_tdep): Add declaration.
* valops.c (_initialize_valops): Add declaration.
* valprint.c (_initialize_valprint): Add declaration.
* value.c (_initialize_values): Add declaration.
* varobj.c (_initialize_varobj): Add declaration.
* vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration.
* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration.
* vax-tdep.c (_initialize_vax_tdep): Add declaration.
* windows-nat.c (_initialize_windows_nat): Add declaration.
(_initialize_check_for_gdb_ini): Add declaration.
(_initialize_loadable): Add declaration.
* windows-tdep.c (_initialize_windows_tdep): Add declaration.
* x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration.
* x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration.
* xcoffread.c (_initialize_xcoffread): Add declaration.
* xml-support.c (_initialize_xml_support): Add declaration.
* xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration.
* xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration.
* xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration.
* xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration.
Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
1086 lines
36 KiB
C
1086 lines
36 KiB
C
/* Target-dependent code for GNU/Linux i386.
|
||
|
||
Copyright (C) 2000-2020 Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#include "defs.h"
|
||
#include "gdbcore.h"
|
||
#include "frame.h"
|
||
#include "value.h"
|
||
#include "regcache.h"
|
||
#include "regset.h"
|
||
#include "inferior.h"
|
||
#include "osabi.h"
|
||
#include "reggroups.h"
|
||
#include "dwarf2-frame.h"
|
||
#include "i386-tdep.h"
|
||
#include "i386-linux-tdep.h"
|
||
#include "linux-tdep.h"
|
||
#include "utils.h"
|
||
#include "glibc-tdep.h"
|
||
#include "solib-svr4.h"
|
||
#include "symtab.h"
|
||
#include "arch-utils.h"
|
||
#include "xml-syscall.h"
|
||
|
||
#include "i387-tdep.h"
|
||
#include "gdbsupport/x86-xstate.h"
|
||
|
||
/* The syscall's XML filename for i386. */
|
||
#define XML_SYSCALL_FILENAME_I386 "syscalls/i386-linux.xml"
|
||
|
||
#include "record-full.h"
|
||
#include "linux-record.h"
|
||
|
||
#include "arch/i386.h"
|
||
#include "target-descriptions.h"
|
||
|
||
/* Return non-zero, when the register is in the corresponding register
|
||
group. Put the LINUX_ORIG_EAX register in the system group. */
|
||
static int
|
||
i386_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
|
||
struct reggroup *group)
|
||
{
|
||
if (regnum == I386_LINUX_ORIG_EAX_REGNUM)
|
||
return (group == system_reggroup
|
||
|| group == save_reggroup
|
||
|| group == restore_reggroup);
|
||
return i386_register_reggroup_p (gdbarch, regnum, group);
|
||
}
|
||
|
||
|
||
/* Recognizing signal handler frames. */
|
||
|
||
/* GNU/Linux has two flavors of signals. Normal signal handlers, and
|
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"realtime" (RT) signals. The RT signals can provide additional
|
||
information to the signal handler if the SA_SIGINFO flag is set
|
||
when establishing a signal handler using `sigaction'. It is not
|
||
unlikely that future versions of GNU/Linux will support SA_SIGINFO
|
||
for normal signals too. */
|
||
|
||
/* When the i386 Linux kernel calls a signal handler and the
|
||
SA_RESTORER flag isn't set, the return address points to a bit of
|
||
code on the stack. This function returns whether the PC appears to
|
||
be within this bit of code.
|
||
|
||
The instruction sequence for normal signals is
|
||
pop %eax
|
||
mov $0x77, %eax
|
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int $0x80
|
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or 0x58 0xb8 0x77 0x00 0x00 0x00 0xcd 0x80.
|
||
|
||
Checking for the code sequence should be somewhat reliable, because
|
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the effect is to call the system call sigreturn. This is unlikely
|
||
to occur anywhere other than in a signal trampoline.
|
||
|
||
It kind of sucks that we have to read memory from the process in
|
||
order to identify a signal trampoline, but there doesn't seem to be
|
||
any other way. Therefore we only do the memory reads if no
|
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function name could be identified, which should be the case since
|
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the code is on the stack.
|
||
|
||
Detection of signal trampolines for handlers that set the
|
||
SA_RESTORER flag is in general not possible. Unfortunately this is
|
||
what the GNU C Library has been doing for quite some time now.
|
||
However, as of version 2.1.2, the GNU C Library uses signal
|
||
trampolines (named __restore and __restore_rt) that are identical
|
||
to the ones used by the kernel. Therefore, these trampolines are
|
||
supported too. */
|
||
|
||
#define LINUX_SIGTRAMP_INSN0 0x58 /* pop %eax */
|
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#define LINUX_SIGTRAMP_OFFSET0 0
|
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#define LINUX_SIGTRAMP_INSN1 0xb8 /* mov $NNNN, %eax */
|
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#define LINUX_SIGTRAMP_OFFSET1 1
|
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#define LINUX_SIGTRAMP_INSN2 0xcd /* int */
|
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#define LINUX_SIGTRAMP_OFFSET2 6
|
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|
||
static const gdb_byte linux_sigtramp_code[] =
|
||
{
|
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LINUX_SIGTRAMP_INSN0, /* pop %eax */
|
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LINUX_SIGTRAMP_INSN1, 0x77, 0x00, 0x00, 0x00, /* mov $0x77, %eax */
|
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LINUX_SIGTRAMP_INSN2, 0x80 /* int $0x80 */
|
||
};
|
||
|
||
#define LINUX_SIGTRAMP_LEN (sizeof linux_sigtramp_code)
|
||
|
||
/* If THIS_FRAME is a sigtramp routine, return the address of the
|
||
start of the routine. Otherwise, return 0. */
|
||
|
||
static CORE_ADDR
|
||
i386_linux_sigtramp_start (struct frame_info *this_frame)
|
||
{
|
||
CORE_ADDR pc = get_frame_pc (this_frame);
|
||
gdb_byte buf[LINUX_SIGTRAMP_LEN];
|
||
|
||
/* We only recognize a signal trampoline if PC is at the start of
|
||
one of the three instructions. We optimize for finding the PC at
|
||
the start, as will be the case when the trampoline is not the
|
||
first frame on the stack. We assume that in the case where the
|
||
PC is not at the start of the instruction sequence, there will be
|
||
a few trailing readable bytes on the stack. */
|
||
|
||
if (!safe_frame_unwind_memory (this_frame, pc, buf, LINUX_SIGTRAMP_LEN))
|
||
return 0;
|
||
|
||
if (buf[0] != LINUX_SIGTRAMP_INSN0)
|
||
{
|
||
int adjust;
|
||
|
||
switch (buf[0])
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||
{
|
||
case LINUX_SIGTRAMP_INSN1:
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||
adjust = LINUX_SIGTRAMP_OFFSET1;
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||
break;
|
||
case LINUX_SIGTRAMP_INSN2:
|
||
adjust = LINUX_SIGTRAMP_OFFSET2;
|
||
break;
|
||
default:
|
||
return 0;
|
||
}
|
||
|
||
pc -= adjust;
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||
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||
if (!safe_frame_unwind_memory (this_frame, pc, buf, LINUX_SIGTRAMP_LEN))
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||
return 0;
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||
}
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||
|
||
if (memcmp (buf, linux_sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
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||
return 0;
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||
|
||
return pc;
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||
}
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||
|
||
/* This function does the same for RT signals. Here the instruction
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||
sequence is
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mov $0xad, %eax
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int $0x80
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or 0xb8 0xad 0x00 0x00 0x00 0xcd 0x80.
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||
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||
The effect is to call the system call rt_sigreturn. */
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||
#define LINUX_RT_SIGTRAMP_INSN0 0xb8 /* mov $NNNN, %eax */
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#define LINUX_RT_SIGTRAMP_OFFSET0 0
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#define LINUX_RT_SIGTRAMP_INSN1 0xcd /* int */
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||
#define LINUX_RT_SIGTRAMP_OFFSET1 5
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||
static const gdb_byte linux_rt_sigtramp_code[] =
|
||
{
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LINUX_RT_SIGTRAMP_INSN0, 0xad, 0x00, 0x00, 0x00, /* mov $0xad, %eax */
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LINUX_RT_SIGTRAMP_INSN1, 0x80 /* int $0x80 */
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};
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#define LINUX_RT_SIGTRAMP_LEN (sizeof linux_rt_sigtramp_code)
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|
||
/* If THIS_FRAME is an RT sigtramp routine, return the address of the
|
||
start of the routine. Otherwise, return 0. */
|
||
|
||
static CORE_ADDR
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i386_linux_rt_sigtramp_start (struct frame_info *this_frame)
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||
{
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CORE_ADDR pc = get_frame_pc (this_frame);
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||
gdb_byte buf[LINUX_RT_SIGTRAMP_LEN];
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||
|
||
/* We only recognize a signal trampoline if PC is at the start of
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one of the two instructions. We optimize for finding the PC at
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the start, as will be the case when the trampoline is not the
|
||
first frame on the stack. We assume that in the case where the
|
||
PC is not at the start of the instruction sequence, there will be
|
||
a few trailing readable bytes on the stack. */
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||
|
||
if (!safe_frame_unwind_memory (this_frame, pc, buf, LINUX_RT_SIGTRAMP_LEN))
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||
return 0;
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||
|
||
if (buf[0] != LINUX_RT_SIGTRAMP_INSN0)
|
||
{
|
||
if (buf[0] != LINUX_RT_SIGTRAMP_INSN1)
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||
return 0;
|
||
|
||
pc -= LINUX_RT_SIGTRAMP_OFFSET1;
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||
|
||
if (!safe_frame_unwind_memory (this_frame, pc, buf,
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LINUX_RT_SIGTRAMP_LEN))
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||
return 0;
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||
}
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||
|
||
if (memcmp (buf, linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN) != 0)
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||
return 0;
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||
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||
return pc;
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||
}
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||
|
||
/* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp
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||
routine. */
|
||
|
||
static int
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||
i386_linux_sigtramp_p (struct frame_info *this_frame)
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||
{
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||
CORE_ADDR pc = get_frame_pc (this_frame);
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||
const char *name;
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||
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||
find_pc_partial_function (pc, &name, NULL, NULL);
|
||
|
||
/* If we have NAME, we can optimize the search. The trampolines are
|
||
named __restore and __restore_rt. However, they aren't dynamically
|
||
exported from the shared C library, so the trampoline may appear to
|
||
be part of the preceding function. This should always be sigaction,
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||
__sigaction, or __libc_sigaction (all aliases to the same function). */
|
||
if (name == NULL || strstr (name, "sigaction") != NULL)
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||
return (i386_linux_sigtramp_start (this_frame) != 0
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|| i386_linux_rt_sigtramp_start (this_frame) != 0);
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||
return (strcmp ("__restore", name) == 0
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|| strcmp ("__restore_rt", name) == 0);
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||
}
|
||
|
||
/* Return one if the PC of THIS_FRAME is in a signal trampoline which
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||
may have DWARF-2 CFI. */
|
||
|
||
static int
|
||
i386_linux_dwarf_signal_frame_p (struct gdbarch *gdbarch,
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||
struct frame_info *this_frame)
|
||
{
|
||
CORE_ADDR pc = get_frame_pc (this_frame);
|
||
const char *name;
|
||
|
||
find_pc_partial_function (pc, &name, NULL, NULL);
|
||
|
||
/* If a vsyscall DSO is in use, the signal trampolines may have these
|
||
names. */
|
||
if (name && (strcmp (name, "__kernel_sigreturn") == 0
|
||
|| strcmp (name, "__kernel_rt_sigreturn") == 0))
|
||
return 1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>. */
|
||
#define I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 20
|
||
|
||
/* Assuming THIS_FRAME is a GNU/Linux sigtramp routine, return the
|
||
address of the associated sigcontext structure. */
|
||
|
||
static CORE_ADDR
|
||
i386_linux_sigcontext_addr (struct frame_info *this_frame)
|
||
{
|
||
struct gdbarch *gdbarch = get_frame_arch (this_frame);
|
||
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
||
CORE_ADDR pc;
|
||
CORE_ADDR sp;
|
||
gdb_byte buf[4];
|
||
|
||
get_frame_register (this_frame, I386_ESP_REGNUM, buf);
|
||
sp = extract_unsigned_integer (buf, 4, byte_order);
|
||
|
||
pc = i386_linux_sigtramp_start (this_frame);
|
||
if (pc)
|
||
{
|
||
/* The sigcontext structure lives on the stack, right after
|
||
the signum argument. We determine the address of the
|
||
sigcontext structure by looking at the frame's stack
|
||
pointer. Keep in mind that the first instruction of the
|
||
sigtramp code is "pop %eax". If the PC is after this
|
||
instruction, adjust the returned value accordingly. */
|
||
if (pc == get_frame_pc (this_frame))
|
||
return sp + 4;
|
||
return sp;
|
||
}
|
||
|
||
pc = i386_linux_rt_sigtramp_start (this_frame);
|
||
if (pc)
|
||
{
|
||
CORE_ADDR ucontext_addr;
|
||
|
||
/* The sigcontext structure is part of the user context. A
|
||
pointer to the user context is passed as the third argument
|
||
to the signal handler. */
|
||
read_memory (sp + 8, buf, 4);
|
||
ucontext_addr = extract_unsigned_integer (buf, 4, byte_order);
|
||
return ucontext_addr + I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET;
|
||
}
|
||
|
||
error (_("Couldn't recognize signal trampoline."));
|
||
return 0;
|
||
}
|
||
|
||
/* Set the program counter for process PTID to PC. */
|
||
|
||
static void
|
||
i386_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
|
||
{
|
||
regcache_cooked_write_unsigned (regcache, I386_EIP_REGNUM, pc);
|
||
|
||
/* We must be careful with modifying the program counter. If we
|
||
just interrupted a system call, the kernel might try to restart
|
||
it when we resume the inferior. On restarting the system call,
|
||
the kernel will try backing up the program counter even though it
|
||
no longer points at the system call. This typically results in a
|
||
SIGSEGV or SIGILL. We can prevent this by writing `-1' in the
|
||
"orig_eax" pseudo-register.
|
||
|
||
Note that "orig_eax" is saved when setting up a dummy call frame.
|
||
This means that it is properly restored when that frame is
|
||
popped, and that the interrupted system call will be restarted
|
||
when we resume the inferior on return from a function call from
|
||
within GDB. In all other cases the system call will not be
|
||
restarted. */
|
||
regcache_cooked_write_unsigned (regcache, I386_LINUX_ORIG_EAX_REGNUM, -1);
|
||
}
|
||
|
||
/* Record all registers but IP register for process-record. */
|
||
|
||
static int
|
||
i386_all_but_ip_registers_record (struct regcache *regcache)
|
||
{
|
||
if (record_full_arch_list_add_reg (regcache, I386_EAX_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_ECX_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_EDX_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_EBX_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_ESP_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_EBP_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_ESI_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_EDI_REGNUM))
|
||
return -1;
|
||
if (record_full_arch_list_add_reg (regcache, I386_EFLAGS_REGNUM))
|
||
return -1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* i386_canonicalize_syscall maps from the native i386 Linux set
|
||
of syscall ids into a canonical set of syscall ids used by
|
||
process record (a mostly trivial mapping, since the canonical
|
||
set was originally taken from the i386 set). */
|
||
|
||
static enum gdb_syscall
|
||
i386_canonicalize_syscall (int syscall)
|
||
{
|
||
enum { i386_syscall_max = 499 };
|
||
|
||
if (syscall <= i386_syscall_max)
|
||
return (enum gdb_syscall) syscall;
|
||
else
|
||
return gdb_sys_no_syscall;
|
||
}
|
||
|
||
/* Value of the sigcode in case of a boundary fault. */
|
||
|
||
#define SIG_CODE_BONDARY_FAULT 3
|
||
|
||
/* i386 GNU/Linux implementation of the handle_segmentation_fault
|
||
gdbarch hook. Displays information related to MPX bound
|
||
violations. */
|
||
void
|
||
i386_linux_handle_segmentation_fault (struct gdbarch *gdbarch,
|
||
struct ui_out *uiout)
|
||
{
|
||
/* -Wmaybe-uninitialized */
|
||
CORE_ADDR lower_bound = 0, upper_bound = 0, access = 0;
|
||
int is_upper;
|
||
long sig_code = 0;
|
||
|
||
if (!i386_mpx_enabled ())
|
||
return;
|
||
|
||
try
|
||
{
|
||
/* Sigcode evaluates if the actual segfault is a boundary violation. */
|
||
sig_code = parse_and_eval_long ("$_siginfo.si_code\n");
|
||
|
||
lower_bound
|
||
= parse_and_eval_long ("$_siginfo._sifields._sigfault._addr_bnd._lower");
|
||
upper_bound
|
||
= parse_and_eval_long ("$_siginfo._sifields._sigfault._addr_bnd._upper");
|
||
access
|
||
= parse_and_eval_long ("$_siginfo._sifields._sigfault.si_addr");
|
||
}
|
||
catch (const gdb_exception &exception)
|
||
{
|
||
return;
|
||
}
|
||
|
||
/* If this is not a boundary violation just return. */
|
||
if (sig_code != SIG_CODE_BONDARY_FAULT)
|
||
return;
|
||
|
||
is_upper = (access > upper_bound ? 1 : 0);
|
||
|
||
uiout->text ("\n");
|
||
if (is_upper)
|
||
uiout->field_string ("sigcode-meaning", _("Upper bound violation"));
|
||
else
|
||
uiout->field_string ("sigcode-meaning", _("Lower bound violation"));
|
||
|
||
uiout->text (_(" while accessing address "));
|
||
uiout->field_core_addr ("bound-access", gdbarch, access);
|
||
|
||
uiout->text (_("\nBounds: [lower = "));
|
||
uiout->field_core_addr ("lower-bound", gdbarch, lower_bound);
|
||
|
||
uiout->text (_(", upper = "));
|
||
uiout->field_core_addr ("upper-bound", gdbarch, upper_bound);
|
||
|
||
uiout->text (_("]"));
|
||
}
|
||
|
||
/* Parse the arguments of current system call instruction and record
|
||
the values of the registers and memory that will be changed into
|
||
"record_arch_list". This instruction is "int 0x80" (Linux
|
||
Kernel2.4) or "sysenter" (Linux Kernel 2.6).
|
||
|
||
Return -1 if something wrong. */
|
||
|
||
static struct linux_record_tdep i386_linux_record_tdep;
|
||
|
||
static int
|
||
i386_linux_intx80_sysenter_syscall_record (struct regcache *regcache)
|
||
{
|
||
int ret;
|
||
LONGEST syscall_native;
|
||
enum gdb_syscall syscall_gdb;
|
||
|
||
regcache_raw_read_signed (regcache, I386_EAX_REGNUM, &syscall_native);
|
||
|
||
syscall_gdb = i386_canonicalize_syscall (syscall_native);
|
||
|
||
if (syscall_gdb < 0)
|
||
{
|
||
printf_unfiltered (_("Process record and replay target doesn't "
|
||
"support syscall number %s\n"),
|
||
plongest (syscall_native));
|
||
return -1;
|
||
}
|
||
|
||
if (syscall_gdb == gdb_sys_sigreturn
|
||
|| syscall_gdb == gdb_sys_rt_sigreturn)
|
||
{
|
||
if (i386_all_but_ip_registers_record (regcache))
|
||
return -1;
|
||
return 0;
|
||
}
|
||
|
||
ret = record_linux_system_call (syscall_gdb, regcache,
|
||
&i386_linux_record_tdep);
|
||
if (ret)
|
||
return ret;
|
||
|
||
/* Record the return value of the system call. */
|
||
if (record_full_arch_list_add_reg (regcache, I386_EAX_REGNUM))
|
||
return -1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
#define I386_LINUX_xstate 270
|
||
#define I386_LINUX_frame_size 732
|
||
|
||
static int
|
||
i386_linux_record_signal (struct gdbarch *gdbarch,
|
||
struct regcache *regcache,
|
||
enum gdb_signal signal)
|
||
{
|
||
ULONGEST esp;
|
||
|
||
if (i386_all_but_ip_registers_record (regcache))
|
||
return -1;
|
||
|
||
if (record_full_arch_list_add_reg (regcache, I386_EIP_REGNUM))
|
||
return -1;
|
||
|
||
/* Record the change in the stack. */
|
||
regcache_raw_read_unsigned (regcache, I386_ESP_REGNUM, &esp);
|
||
/* This is for xstate.
|
||
sp -= sizeof (struct _fpstate); */
|
||
esp -= I386_LINUX_xstate;
|
||
/* This is for frame_size.
|
||
sp -= sizeof (struct rt_sigframe); */
|
||
esp -= I386_LINUX_frame_size;
|
||
if (record_full_arch_list_add_mem (esp,
|
||
I386_LINUX_xstate + I386_LINUX_frame_size))
|
||
return -1;
|
||
|
||
if (record_full_arch_list_add_end ())
|
||
return -1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Core of the implementation for gdbarch get_syscall_number. Get pending
|
||
syscall number from REGCACHE. If there is no pending syscall -1 will be
|
||
returned. Pending syscall means ptrace has stepped into the syscall but
|
||
another ptrace call will step out. PC is right after the int $0x80
|
||
/ syscall / sysenter instruction in both cases, PC does not change during
|
||
the second ptrace step. */
|
||
|
||
static LONGEST
|
||
i386_linux_get_syscall_number_from_regcache (struct regcache *regcache)
|
||
{
|
||
struct gdbarch *gdbarch = regcache->arch ();
|
||
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
||
/* The content of a register. */
|
||
gdb_byte buf[4];
|
||
/* The result. */
|
||
LONGEST ret;
|
||
|
||
/* Getting the system call number from the register.
|
||
When dealing with x86 architecture, this information
|
||
is stored at %eax register. */
|
||
regcache->cooked_read (I386_LINUX_ORIG_EAX_REGNUM, buf);
|
||
|
||
ret = extract_signed_integer (buf, 4, byte_order);
|
||
|
||
return ret;
|
||
}
|
||
|
||
/* Wrapper for i386_linux_get_syscall_number_from_regcache to make it
|
||
compatible with gdbarch get_syscall_number method prototype. */
|
||
|
||
static LONGEST
|
||
i386_linux_get_syscall_number (struct gdbarch *gdbarch,
|
||
thread_info *thread)
|
||
{
|
||
struct regcache *regcache = get_thread_regcache (thread);
|
||
|
||
return i386_linux_get_syscall_number_from_regcache (regcache);
|
||
}
|
||
|
||
/* The register sets used in GNU/Linux ELF core-dumps are identical to
|
||
the register sets in `struct user' that are used for a.out
|
||
core-dumps. These are also used by ptrace(2). The corresponding
|
||
types are `elf_gregset_t' for the general-purpose registers (with
|
||
`elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
|
||
for the floating-point registers.
|
||
|
||
Those types used to be available under the names `gregset_t' and
|
||
`fpregset_t' too, and GDB used those names in the past. But those
|
||
names are now used for the register sets used in the `mcontext_t'
|
||
type, which have a different size and layout. */
|
||
|
||
/* Mapping between the general-purpose registers in `struct user'
|
||
format and GDB's register cache layout. */
|
||
|
||
/* From <sys/reg.h>. */
|
||
int i386_linux_gregset_reg_offset[] =
|
||
{
|
||
6 * 4, /* %eax */
|
||
1 * 4, /* %ecx */
|
||
2 * 4, /* %edx */
|
||
0 * 4, /* %ebx */
|
||
15 * 4, /* %esp */
|
||
5 * 4, /* %ebp */
|
||
3 * 4, /* %esi */
|
||
4 * 4, /* %edi */
|
||
12 * 4, /* %eip */
|
||
14 * 4, /* %eflags */
|
||
13 * 4, /* %cs */
|
||
16 * 4, /* %ss */
|
||
7 * 4, /* %ds */
|
||
8 * 4, /* %es */
|
||
9 * 4, /* %fs */
|
||
10 * 4, /* %gs */
|
||
-1, -1, -1, -1, -1, -1, -1, -1,
|
||
-1, -1, -1, -1, -1, -1, -1, -1,
|
||
-1, -1, -1, -1, -1, -1, -1, -1,
|
||
-1,
|
||
-1, -1, -1, -1, -1, -1, -1, -1,
|
||
-1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
|
||
-1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
|
||
-1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
|
||
-1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
|
||
-1, /* PKRU register */
|
||
11 * 4, /* "orig_eax" */
|
||
};
|
||
|
||
/* Mapping between the general-purpose registers in `struct
|
||
sigcontext' format and GDB's register cache layout. */
|
||
|
||
/* From <asm/sigcontext.h>. */
|
||
static int i386_linux_sc_reg_offset[] =
|
||
{
|
||
11 * 4, /* %eax */
|
||
10 * 4, /* %ecx */
|
||
9 * 4, /* %edx */
|
||
8 * 4, /* %ebx */
|
||
7 * 4, /* %esp */
|
||
6 * 4, /* %ebp */
|
||
5 * 4, /* %esi */
|
||
4 * 4, /* %edi */
|
||
14 * 4, /* %eip */
|
||
16 * 4, /* %eflags */
|
||
15 * 4, /* %cs */
|
||
18 * 4, /* %ss */
|
||
3 * 4, /* %ds */
|
||
2 * 4, /* %es */
|
||
1 * 4, /* %fs */
|
||
0 * 4 /* %gs */
|
||
};
|
||
|
||
/* Get XSAVE extended state xcr0 from core dump. */
|
||
|
||
uint64_t
|
||
i386_linux_core_read_xcr0 (bfd *abfd)
|
||
{
|
||
asection *xstate = bfd_get_section_by_name (abfd, ".reg-xstate");
|
||
uint64_t xcr0;
|
||
|
||
if (xstate)
|
||
{
|
||
size_t size = bfd_section_size (xstate);
|
||
|
||
/* Check extended state size. */
|
||
if (size < X86_XSTATE_AVX_SIZE)
|
||
xcr0 = X86_XSTATE_SSE_MASK;
|
||
else
|
||
{
|
||
char contents[8];
|
||
|
||
if (! bfd_get_section_contents (abfd, xstate, contents,
|
||
I386_LINUX_XSAVE_XCR0_OFFSET,
|
||
8))
|
||
{
|
||
warning (_("Couldn't read `xcr0' bytes from "
|
||
"`.reg-xstate' section in core file."));
|
||
return 0;
|
||
}
|
||
|
||
xcr0 = bfd_get_64 (abfd, contents);
|
||
}
|
||
}
|
||
else
|
||
xcr0 = 0;
|
||
|
||
return xcr0;
|
||
}
|
||
|
||
/* See i386-linux-tdep.h. */
|
||
|
||
const struct target_desc *
|
||
i386_linux_read_description (uint64_t xcr0)
|
||
{
|
||
if (xcr0 == 0)
|
||
return NULL;
|
||
|
||
static struct target_desc *i386_linux_tdescs \
|
||
[2/*X87*/][2/*SSE*/][2/*AVX*/][2/*MPX*/][2/*AVX512*/][2/*PKRU*/] = {};
|
||
struct target_desc **tdesc;
|
||
|
||
tdesc = &i386_linux_tdescs[(xcr0 & X86_XSTATE_X87) ? 1 : 0]
|
||
[(xcr0 & X86_XSTATE_SSE) ? 1 : 0]
|
||
[(xcr0 & X86_XSTATE_AVX) ? 1 : 0]
|
||
[(xcr0 & X86_XSTATE_MPX) ? 1 : 0]
|
||
[(xcr0 & X86_XSTATE_AVX512) ? 1 : 0]
|
||
[(xcr0 & X86_XSTATE_PKRU) ? 1 : 0];
|
||
|
||
if (*tdesc == NULL)
|
||
*tdesc = i386_create_target_description (xcr0, true, false);
|
||
|
||
return *tdesc;
|
||
}
|
||
|
||
/* Get Linux/x86 target description from core dump. */
|
||
|
||
static const struct target_desc *
|
||
i386_linux_core_read_description (struct gdbarch *gdbarch,
|
||
struct target_ops *target,
|
||
bfd *abfd)
|
||
{
|
||
/* Linux/i386. */
|
||
uint64_t xcr0 = i386_linux_core_read_xcr0 (abfd);
|
||
const struct target_desc *tdesc = i386_linux_read_description (xcr0);
|
||
|
||
if (tdesc != NULL)
|
||
return tdesc;
|
||
|
||
if (bfd_get_section_by_name (abfd, ".reg-xfp") != NULL)
|
||
return i386_linux_read_description (X86_XSTATE_SSE_MASK);
|
||
else
|
||
return i386_linux_read_description (X86_XSTATE_X87_MASK);
|
||
}
|
||
|
||
/* Similar to i386_supply_fpregset, but use XSAVE extended state. */
|
||
|
||
static void
|
||
i386_linux_supply_xstateregset (const struct regset *regset,
|
||
struct regcache *regcache, int regnum,
|
||
const void *xstateregs, size_t len)
|
||
{
|
||
i387_supply_xsave (regcache, regnum, xstateregs);
|
||
}
|
||
|
||
struct type *
|
||
x86_linux_get_siginfo_type (struct gdbarch *gdbarch)
|
||
{
|
||
return linux_get_siginfo_type_with_fields (gdbarch, LINUX_SIGINFO_FIELD_ADDR_BND);
|
||
}
|
||
|
||
/* Similar to i386_collect_fpregset, but use XSAVE extended state. */
|
||
|
||
static void
|
||
i386_linux_collect_xstateregset (const struct regset *regset,
|
||
const struct regcache *regcache,
|
||
int regnum, void *xstateregs, size_t len)
|
||
{
|
||
i387_collect_xsave (regcache, regnum, xstateregs, 1);
|
||
}
|
||
|
||
/* Register set definitions. */
|
||
|
||
static const struct regset i386_linux_xstateregset =
|
||
{
|
||
NULL,
|
||
i386_linux_supply_xstateregset,
|
||
i386_linux_collect_xstateregset
|
||
};
|
||
|
||
/* Iterate over core file register note sections. */
|
||
|
||
static void
|
||
i386_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
|
||
iterate_over_regset_sections_cb *cb,
|
||
void *cb_data,
|
||
const struct regcache *regcache)
|
||
{
|
||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||
|
||
cb (".reg", 68, 68, &i386_gregset, NULL, cb_data);
|
||
|
||
if (tdep->xcr0 & X86_XSTATE_AVX)
|
||
cb (".reg-xstate", X86_XSTATE_SIZE (tdep->xcr0),
|
||
X86_XSTATE_SIZE (tdep->xcr0), &i386_linux_xstateregset,
|
||
"XSAVE extended state", cb_data);
|
||
else if (tdep->xcr0 & X86_XSTATE_SSE)
|
||
cb (".reg-xfp", 512, 512, &i386_fpregset, "extended floating-point",
|
||
cb_data);
|
||
else
|
||
cb (".reg2", 108, 108, &i386_fpregset, NULL, cb_data);
|
||
}
|
||
|
||
/* Linux kernel shows PC value after the 'int $0x80' instruction even if
|
||
inferior is still inside the syscall. On next PTRACE_SINGLESTEP it will
|
||
finish the syscall but PC will not change.
|
||
|
||
Some vDSOs contain 'int $0x80; ret' and during stepping out of the syscall
|
||
i386_displaced_step_fixup would keep PC at the displaced pad location.
|
||
As PC is pointing to the 'ret' instruction before the step
|
||
i386_displaced_step_fixup would expect inferior has just executed that 'ret'
|
||
and PC should not be adjusted. In reality it finished syscall instead and
|
||
PC should get relocated back to its vDSO address. Hide the 'ret'
|
||
instruction by 'nop' so that i386_displaced_step_fixup is not confused.
|
||
|
||
It is not fully correct as the bytes in struct displaced_step_closure will
|
||
not match the inferior code. But we would need some new flag in
|
||
displaced_step_closure otherwise to keep the state that syscall is finishing
|
||
for the later i386_displaced_step_fixup execution as the syscall execution
|
||
is already no longer detectable there. The new flag field would mean
|
||
i386-linux-tdep.c needs to wrap all the displacement methods of i386-tdep.c
|
||
which does not seem worth it. The same effect is achieved by patching that
|
||
'nop' instruction there instead. */
|
||
|
||
static struct displaced_step_closure *
|
||
i386_linux_displaced_step_copy_insn (struct gdbarch *gdbarch,
|
||
CORE_ADDR from, CORE_ADDR to,
|
||
struct regcache *regs)
|
||
{
|
||
displaced_step_closure *closure_
|
||
= i386_displaced_step_copy_insn (gdbarch, from, to, regs);
|
||
|
||
if (i386_linux_get_syscall_number_from_regcache (regs) != -1)
|
||
{
|
||
/* The closure returned by i386_displaced_step_copy_insn is simply a
|
||
buffer with a copy of the instruction. */
|
||
i386_displaced_step_closure *closure
|
||
= (i386_displaced_step_closure *) closure_;
|
||
|
||
/* Fake nop. */
|
||
closure->buf[0] = 0x90;
|
||
}
|
||
|
||
return closure_;
|
||
}
|
||
|
||
static void
|
||
i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||
{
|
||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||
const struct target_desc *tdesc = info.target_desc;
|
||
struct tdesc_arch_data *tdesc_data = info.tdesc_data;
|
||
const struct tdesc_feature *feature;
|
||
int valid_p;
|
||
|
||
gdb_assert (tdesc_data);
|
||
|
||
linux_init_abi (info, gdbarch);
|
||
|
||
/* GNU/Linux uses ELF. */
|
||
i386_elf_init_abi (info, gdbarch);
|
||
|
||
/* Reserve a number for orig_eax. */
|
||
set_gdbarch_num_regs (gdbarch, I386_LINUX_NUM_REGS);
|
||
|
||
if (! tdesc_has_registers (tdesc))
|
||
tdesc = i386_linux_read_description (X86_XSTATE_SSE_MASK);
|
||
tdep->tdesc = tdesc;
|
||
|
||
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
|
||
if (feature == NULL)
|
||
return;
|
||
|
||
valid_p = tdesc_numbered_register (feature, tdesc_data,
|
||
I386_LINUX_ORIG_EAX_REGNUM,
|
||
"orig_eax");
|
||
if (!valid_p)
|
||
return;
|
||
|
||
/* Add the %orig_eax register used for syscall restarting. */
|
||
set_gdbarch_write_pc (gdbarch, i386_linux_write_pc);
|
||
|
||
tdep->register_reggroup_p = i386_linux_register_reggroup_p;
|
||
|
||
tdep->gregset_reg_offset = i386_linux_gregset_reg_offset;
|
||
tdep->gregset_num_regs = ARRAY_SIZE (i386_linux_gregset_reg_offset);
|
||
tdep->sizeof_gregset = 17 * 4;
|
||
|
||
tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */
|
||
|
||
tdep->sigtramp_p = i386_linux_sigtramp_p;
|
||
tdep->sigcontext_addr = i386_linux_sigcontext_addr;
|
||
tdep->sc_reg_offset = i386_linux_sc_reg_offset;
|
||
tdep->sc_num_regs = ARRAY_SIZE (i386_linux_sc_reg_offset);
|
||
|
||
tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET;
|
||
|
||
set_gdbarch_process_record (gdbarch, i386_process_record);
|
||
set_gdbarch_process_record_signal (gdbarch, i386_linux_record_signal);
|
||
|
||
/* Initialize the i386_linux_record_tdep. */
|
||
/* These values are the size of the type that will be used in a system
|
||
call. They are obtained from Linux Kernel source. */
|
||
i386_linux_record_tdep.size_pointer
|
||
= gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
|
||
i386_linux_record_tdep.size__old_kernel_stat = 32;
|
||
i386_linux_record_tdep.size_tms = 16;
|
||
i386_linux_record_tdep.size_loff_t = 8;
|
||
i386_linux_record_tdep.size_flock = 16;
|
||
i386_linux_record_tdep.size_oldold_utsname = 45;
|
||
i386_linux_record_tdep.size_ustat = 20;
|
||
i386_linux_record_tdep.size_old_sigaction = 16;
|
||
i386_linux_record_tdep.size_old_sigset_t = 4;
|
||
i386_linux_record_tdep.size_rlimit = 8;
|
||
i386_linux_record_tdep.size_rusage = 72;
|
||
i386_linux_record_tdep.size_timeval = 8;
|
||
i386_linux_record_tdep.size_timezone = 8;
|
||
i386_linux_record_tdep.size_old_gid_t = 2;
|
||
i386_linux_record_tdep.size_old_uid_t = 2;
|
||
i386_linux_record_tdep.size_fd_set = 128;
|
||
i386_linux_record_tdep.size_old_dirent = 268;
|
||
i386_linux_record_tdep.size_statfs = 64;
|
||
i386_linux_record_tdep.size_statfs64 = 84;
|
||
i386_linux_record_tdep.size_sockaddr = 16;
|
||
i386_linux_record_tdep.size_int
|
||
= gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
|
||
i386_linux_record_tdep.size_long
|
||
= gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
|
||
i386_linux_record_tdep.size_ulong
|
||
= gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
|
||
i386_linux_record_tdep.size_msghdr = 28;
|
||
i386_linux_record_tdep.size_itimerval = 16;
|
||
i386_linux_record_tdep.size_stat = 88;
|
||
i386_linux_record_tdep.size_old_utsname = 325;
|
||
i386_linux_record_tdep.size_sysinfo = 64;
|
||
i386_linux_record_tdep.size_msqid_ds = 88;
|
||
i386_linux_record_tdep.size_shmid_ds = 84;
|
||
i386_linux_record_tdep.size_new_utsname = 390;
|
||
i386_linux_record_tdep.size_timex = 128;
|
||
i386_linux_record_tdep.size_mem_dqinfo = 24;
|
||
i386_linux_record_tdep.size_if_dqblk = 68;
|
||
i386_linux_record_tdep.size_fs_quota_stat = 68;
|
||
i386_linux_record_tdep.size_timespec = 8;
|
||
i386_linux_record_tdep.size_pollfd = 8;
|
||
i386_linux_record_tdep.size_NFS_FHSIZE = 32;
|
||
i386_linux_record_tdep.size_knfsd_fh = 132;
|
||
i386_linux_record_tdep.size_TASK_COMM_LEN = 16;
|
||
i386_linux_record_tdep.size_sigaction = 20;
|
||
i386_linux_record_tdep.size_sigset_t = 8;
|
||
i386_linux_record_tdep.size_siginfo_t = 128;
|
||
i386_linux_record_tdep.size_cap_user_data_t = 12;
|
||
i386_linux_record_tdep.size_stack_t = 12;
|
||
i386_linux_record_tdep.size_off_t = i386_linux_record_tdep.size_long;
|
||
i386_linux_record_tdep.size_stat64 = 96;
|
||
i386_linux_record_tdep.size_gid_t = 4;
|
||
i386_linux_record_tdep.size_uid_t = 4;
|
||
i386_linux_record_tdep.size_PAGE_SIZE = 4096;
|
||
i386_linux_record_tdep.size_flock64 = 24;
|
||
i386_linux_record_tdep.size_user_desc = 16;
|
||
i386_linux_record_tdep.size_io_event = 32;
|
||
i386_linux_record_tdep.size_iocb = 64;
|
||
i386_linux_record_tdep.size_epoll_event = 12;
|
||
i386_linux_record_tdep.size_itimerspec
|
||
= i386_linux_record_tdep.size_timespec * 2;
|
||
i386_linux_record_tdep.size_mq_attr = 32;
|
||
i386_linux_record_tdep.size_termios = 36;
|
||
i386_linux_record_tdep.size_termios2 = 44;
|
||
i386_linux_record_tdep.size_pid_t = 4;
|
||
i386_linux_record_tdep.size_winsize = 8;
|
||
i386_linux_record_tdep.size_serial_struct = 60;
|
||
i386_linux_record_tdep.size_serial_icounter_struct = 80;
|
||
i386_linux_record_tdep.size_hayes_esp_config = 12;
|
||
i386_linux_record_tdep.size_size_t = 4;
|
||
i386_linux_record_tdep.size_iovec = 8;
|
||
i386_linux_record_tdep.size_time_t = 4;
|
||
|
||
/* These values are the second argument of system call "sys_ioctl".
|
||
They are obtained from Linux Kernel source. */
|
||
i386_linux_record_tdep.ioctl_TCGETS = 0x5401;
|
||
i386_linux_record_tdep.ioctl_TCSETS = 0x5402;
|
||
i386_linux_record_tdep.ioctl_TCSETSW = 0x5403;
|
||
i386_linux_record_tdep.ioctl_TCSETSF = 0x5404;
|
||
i386_linux_record_tdep.ioctl_TCGETA = 0x5405;
|
||
i386_linux_record_tdep.ioctl_TCSETA = 0x5406;
|
||
i386_linux_record_tdep.ioctl_TCSETAW = 0x5407;
|
||
i386_linux_record_tdep.ioctl_TCSETAF = 0x5408;
|
||
i386_linux_record_tdep.ioctl_TCSBRK = 0x5409;
|
||
i386_linux_record_tdep.ioctl_TCXONC = 0x540A;
|
||
i386_linux_record_tdep.ioctl_TCFLSH = 0x540B;
|
||
i386_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
|
||
i386_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
|
||
i386_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
|
||
i386_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
|
||
i386_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
|
||
i386_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
|
||
i386_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
|
||
i386_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
|
||
i386_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
|
||
i386_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
|
||
i386_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
|
||
i386_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
|
||
i386_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
|
||
i386_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
|
||
i386_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
|
||
i386_linux_record_tdep.ioctl_FIONREAD = 0x541B;
|
||
i386_linux_record_tdep.ioctl_TIOCINQ = i386_linux_record_tdep.ioctl_FIONREAD;
|
||
i386_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
|
||
i386_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
|
||
i386_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
|
||
i386_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
|
||
i386_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
|
||
i386_linux_record_tdep.ioctl_FIONBIO = 0x5421;
|
||
i386_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
|
||
i386_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
|
||
i386_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
|
||
i386_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
|
||
i386_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
|
||
i386_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
|
||
i386_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
|
||
i386_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
|
||
i386_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
|
||
i386_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
|
||
i386_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
|
||
i386_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
|
||
i386_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
|
||
i386_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
|
||
i386_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
|
||
i386_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
|
||
i386_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
|
||
i386_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
|
||
i386_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
|
||
i386_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
|
||
i386_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
|
||
i386_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
|
||
i386_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
|
||
i386_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
|
||
i386_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
|
||
i386_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
|
||
i386_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
|
||
i386_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
|
||
i386_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
|
||
i386_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
|
||
i386_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
|
||
|
||
/* These values are the second argument of system call "sys_fcntl"
|
||
and "sys_fcntl64". They are obtained from Linux Kernel source. */
|
||
i386_linux_record_tdep.fcntl_F_GETLK = 5;
|
||
i386_linux_record_tdep.fcntl_F_GETLK64 = 12;
|
||
i386_linux_record_tdep.fcntl_F_SETLK64 = 13;
|
||
i386_linux_record_tdep.fcntl_F_SETLKW64 = 14;
|
||
|
||
i386_linux_record_tdep.arg1 = I386_EBX_REGNUM;
|
||
i386_linux_record_tdep.arg2 = I386_ECX_REGNUM;
|
||
i386_linux_record_tdep.arg3 = I386_EDX_REGNUM;
|
||
i386_linux_record_tdep.arg4 = I386_ESI_REGNUM;
|
||
i386_linux_record_tdep.arg5 = I386_EDI_REGNUM;
|
||
i386_linux_record_tdep.arg6 = I386_EBP_REGNUM;
|
||
|
||
tdep->i386_intx80_record = i386_linux_intx80_sysenter_syscall_record;
|
||
tdep->i386_sysenter_record = i386_linux_intx80_sysenter_syscall_record;
|
||
tdep->i386_syscall_record = i386_linux_intx80_sysenter_syscall_record;
|
||
|
||
/* N_FUN symbols in shared libraries have 0 for their values and need
|
||
to be relocated. */
|
||
set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
|
||
|
||
/* GNU/Linux uses SVR4-style shared libraries. */
|
||
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
|
||
set_solib_svr4_fetch_link_map_offsets
|
||
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
|
||
|
||
/* GNU/Linux uses the dynamic linker included in the GNU C Library. */
|
||
set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
|
||
|
||
dwarf2_frame_set_signal_frame_p (gdbarch, i386_linux_dwarf_signal_frame_p);
|
||
|
||
/* Enable TLS support. */
|
||
set_gdbarch_fetch_tls_load_module_address (gdbarch,
|
||
svr4_fetch_objfile_link_map);
|
||
|
||
/* Core file support. */
|
||
set_gdbarch_iterate_over_regset_sections
|
||
(gdbarch, i386_linux_iterate_over_regset_sections);
|
||
set_gdbarch_core_read_description (gdbarch,
|
||
i386_linux_core_read_description);
|
||
|
||
/* Displaced stepping. */
|
||
set_gdbarch_displaced_step_copy_insn (gdbarch,
|
||
i386_linux_displaced_step_copy_insn);
|
||
set_gdbarch_displaced_step_fixup (gdbarch, i386_displaced_step_fixup);
|
||
set_gdbarch_displaced_step_location (gdbarch,
|
||
linux_displaced_step_location);
|
||
|
||
/* Functions for 'catch syscall'. */
|
||
set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_I386);
|
||
set_gdbarch_get_syscall_number (gdbarch,
|
||
i386_linux_get_syscall_number);
|
||
|
||
set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type);
|
||
set_gdbarch_handle_segmentation_fault (gdbarch,
|
||
i386_linux_handle_segmentation_fault);
|
||
}
|
||
|
||
void _initialize_i386_linux_tdep ();
|
||
void
|
||
_initialize_i386_linux_tdep ()
|
||
{
|
||
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_LINUX,
|
||
i386_linux_init_abi);
|
||
}
|