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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
1857 lines
53 KiB
C
1857 lines
53 KiB
C
/* Low level interface for debugging AIX 4.3+ pthreads.
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Copyright (C) 1999-2020 Free Software Foundation, Inc.
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Written by Nick Duffek <nsd@redhat.com>.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This module uses the libpthdebug.a library provided by AIX 4.3+ for
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debugging pthread applications.
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Some name prefix conventions:
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pthdb_ provided by libpthdebug.a
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pdc_ callbacks that this module provides to libpthdebug.a
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pd_ variables or functions interfacing with libpthdebug.a
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libpthdebug peculiarities:
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- pthdb_ptid_pthread() is prototyped in <sys/pthdebug.h>, but
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it's not documented, and after several calls it stops working
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and causes other libpthdebug functions to fail.
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- pthdb_tid_pthread() doesn't always work after
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pthdb_session_update(), but it does work after cycling through
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all threads using pthdb_pthread().
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*/
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#include "defs.h"
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#include "gdbthread.h"
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#include "target.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "gdbcmd.h"
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#include "ppc-tdep.h"
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#include "observable.h"
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#include "objfiles.h"
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#include <procinfo.h>
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <sys/reg.h>
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#include <sched.h>
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#include <sys/pthdebug.h>
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#if !HAVE_DECL_GETTHRDS
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extern int getthrds (pid_t, struct thrdsinfo64 *, int, tid_t *, int);
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#endif
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/* Whether to emit debugging output. */
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static bool debug_aix_thread;
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/* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */
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#ifndef PTHDB_VERSION_3
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#define pthdb_tid_t tid_t
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#endif
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/* Return whether to treat PID as a debuggable thread id. */
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#define PD_TID(ptid) (pd_active && ptid.tid () != 0)
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/* pthdb_user_t value that we pass to pthdb functions. 0 causes
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PTHDB_BAD_USER errors, so use 1. */
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#define PD_USER 1
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/* Success and failure values returned by pthdb callbacks. */
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#define PDC_SUCCESS PTHDB_SUCCESS
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#define PDC_FAILURE PTHDB_CALLBACK
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/* Private data attached to each element in GDB's thread list. */
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struct aix_thread_info : public private_thread_info
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{
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pthdb_pthread_t pdtid; /* thread's libpthdebug id */
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pthdb_tid_t tid; /* kernel thread id */
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};
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/* Return the aix_thread_info attached to THREAD. */
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static aix_thread_info *
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get_aix_thread_info (thread_info *thread)
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{
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return static_cast<aix_thread_info *> (thread->priv.get ());
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}
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/* Information about a thread of which libpthdebug is aware. */
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struct pd_thread {
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pthdb_pthread_t pdtid;
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pthread_t pthid;
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pthdb_tid_t tid;
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};
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/* This module's target-specific operations, active while pd_able is true. */
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static const target_info aix_thread_target_info = {
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"aix-threads",
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N_("AIX pthread support"),
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N_("AIX pthread support")
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};
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class aix_thread_target final : public target_ops
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{
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public:
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const target_info &info () const override
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{ return aix_thread_target_info; }
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strata stratum () const override { return thread_stratum; }
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void detach (inferior *, int) override;
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void resume (ptid_t, int, enum gdb_signal) override;
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ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
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void fetch_registers (struct regcache *, int) override;
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void store_registers (struct regcache *, int) override;
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enum target_xfer_status xfer_partial (enum target_object object,
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const char *annex,
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gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, ULONGEST len,
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ULONGEST *xfered_len) override;
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void mourn_inferior () override;
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bool thread_alive (ptid_t ptid) override;
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std::string pid_to_str (ptid_t) override;
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const char *extra_thread_info (struct thread_info *) override;
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ptid_t get_ada_task_ptid (long lwp, long thread) override;
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};
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static aix_thread_target aix_thread_ops;
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/* Address of the function that libpthread will call when libpthdebug
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is ready to be initialized. */
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static CORE_ADDR pd_brk_addr;
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/* Whether the current application is debuggable by pthdb. */
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static int pd_able = 0;
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/* Whether a threaded application is being debugged. */
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static int pd_active = 0;
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/* Whether the current architecture is 64-bit.
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Only valid when pd_able is true. */
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static int arch64;
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/* Forward declarations for pthdb callbacks. */
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static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int);
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static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t);
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static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t);
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static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid,
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unsigned long long flags,
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pthdb_context_t *context);
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static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid,
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unsigned long long flags,
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pthdb_context_t *context);
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static int pdc_alloc (pthdb_user_t, size_t, void **);
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static int pdc_realloc (pthdb_user_t, void *, size_t, void **);
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static int pdc_dealloc (pthdb_user_t, void *);
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/* pthdb callbacks. */
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static pthdb_callbacks_t pd_callbacks = {
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pdc_symbol_addrs,
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pdc_read_data,
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pdc_write_data,
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pdc_read_regs,
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pdc_write_regs,
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pdc_alloc,
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pdc_realloc,
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pdc_dealloc,
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NULL
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};
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/* Current pthdb session. */
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static pthdb_session_t pd_session;
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/* Return a printable representation of pthdebug function return
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STATUS. */
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static const char *
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pd_status2str (int status)
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{
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switch (status)
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{
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case PTHDB_SUCCESS: return "SUCCESS";
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case PTHDB_NOSYS: return "NOSYS";
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case PTHDB_NOTSUP: return "NOTSUP";
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case PTHDB_BAD_VERSION: return "BAD_VERSION";
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case PTHDB_BAD_USER: return "BAD_USER";
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case PTHDB_BAD_SESSION: return "BAD_SESSION";
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case PTHDB_BAD_MODE: return "BAD_MODE";
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case PTHDB_BAD_FLAGS: return "BAD_FLAGS";
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case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK";
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case PTHDB_BAD_POINTER: return "BAD_POINTER";
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case PTHDB_BAD_CMD: return "BAD_CMD";
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case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD";
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case PTHDB_BAD_ATTR: return "BAD_ATTR";
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case PTHDB_BAD_MUTEX: return "BAD_MUTEX";
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case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR";
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case PTHDB_BAD_COND: return "BAD_COND";
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case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR";
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case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK";
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case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR";
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case PTHDB_BAD_KEY: return "BAD_KEY";
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case PTHDB_BAD_PTID: return "BAD_PTID";
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case PTHDB_BAD_TID: return "BAD_TID";
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case PTHDB_CALLBACK: return "CALLBACK";
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case PTHDB_CONTEXT: return "CONTEXT";
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case PTHDB_HELD: return "HELD";
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case PTHDB_NOT_HELD: return "NOT_HELD";
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case PTHDB_MEMORY: return "MEMORY";
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case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED";
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case PTHDB_SYMBOL: return "SYMBOL";
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case PTHDB_NOT_AVAIL: return "NOT_AVAIL";
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case PTHDB_INTERNAL: return "INTERNAL";
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default: return "UNKNOWN";
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}
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}
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/* A call to ptrace(REQ, ID, ...) just returned RET. Check for
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exceptional conditions and either return nonlocally or else return
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1 for success and 0 for failure. */
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static int
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ptrace_check (int req, int id, int ret)
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{
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if (ret == 0 && !errno)
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return 1;
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/* According to ptrace(2), ptrace may fail with EPERM if "the
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Identifier parameter corresponds to a kernel thread which is
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stopped in kernel mode and whose computational state cannot be
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read or written." This happens quite often with register reads. */
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switch (req)
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{
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case PTT_READ_GPRS:
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case PTT_READ_FPRS:
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case PTT_READ_SPRS:
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if (ret == -1 && errno == EPERM)
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{
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog,
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"ptrace (%d, %d) = %d (errno = %d)\n",
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req, id, ret, errno);
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return ret == -1 ? 0 : 1;
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}
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break;
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}
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error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"),
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req, id, ret, errno, safe_strerror (errno));
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return 0; /* Not reached. */
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}
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/* Call ptracex (REQ, ID, ADDR, DATA, BUF) or
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ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64.
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Return success. */
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#ifdef HAVE_PTRACE64
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# define ptracex(request, pid, addr, data, buf) \
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ptrace64 (request, pid, addr, data, buf)
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#endif
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static int
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ptrace64aix (int req, int id, long long addr, int data, int *buf)
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{
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errno = 0;
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return ptrace_check (req, id, ptracex (req, id, addr, data, buf));
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}
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/* Call ptrace (REQ, ID, ADDR, DATA, BUF) or
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ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64.
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Return success. */
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#ifdef HAVE_PTRACE64
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# define ptrace(request, pid, addr, data, buf) \
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ptrace64 (request, pid, addr, data, buf)
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# define addr_ptr long long
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#else
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# define addr_ptr int *
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#endif
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static int
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ptrace32 (int req, int id, addr_ptr addr, int data, int *buf)
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{
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errno = 0;
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return ptrace_check (req, id,
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ptrace (req, id, addr, data, buf));
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}
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/* If *PIDP is a composite process/thread id, convert it to a
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process id. */
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static void
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pid_to_prc (ptid_t *ptidp)
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{
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ptid_t ptid;
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ptid = *ptidp;
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if (PD_TID (ptid))
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*ptidp = ptid_t (ptid.pid ());
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}
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/* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to
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the address of SYMBOLS[<i>].name. */
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static int
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pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count)
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{
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struct bound_minimal_symbol ms;
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int i;
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char *name;
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog,
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"pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n",
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user, (long) symbols, count);
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for (i = 0; i < count; i++)
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{
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name = symbols[i].name;
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog,
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" symbols[%d].name = \"%s\"\n", i, name);
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if (!*name)
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symbols[i].addr = 0;
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else
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{
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ms = lookup_minimal_symbol (name, NULL, NULL);
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if (ms.minsym == NULL)
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{
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n");
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return PDC_FAILURE;
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}
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symbols[i].addr = BMSYMBOL_VALUE_ADDRESS (ms);
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}
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n",
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i, hex_string (symbols[i].addr));
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}
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n");
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return PDC_SUCCESS;
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}
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/* Read registers call back function should be able to read the
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context information of a debuggee kernel thread from an active
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process or from a core file. The information should be formatted
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in context64 form for both 32-bit and 64-bit process.
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If successful return 0, else non-zero is returned. */
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static int
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pdc_read_regs (pthdb_user_t user,
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pthdb_tid_t tid,
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unsigned long long flags,
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pthdb_context_t *context)
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{
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/* This function doesn't appear to be used, so we could probably
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just return 0 here. HOWEVER, if it is not defined, the OS will
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complain and several thread debug functions will fail. In case
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this is needed, I have implemented what I think it should do,
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however this code is untested. */
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uint64_t gprs64[ppc_num_gprs];
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uint32_t gprs32[ppc_num_gprs];
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double fprs[ppc_num_fprs];
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struct ptxsprs sprs64;
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struct ptsprs sprs32;
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if (debug_aix_thread)
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fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n",
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(int) tid, hex_string (flags));
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|
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/* General-purpose registers. */
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if (flags & PTHDB_FLAG_GPRS)
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{
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if (arch64)
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{
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if (!ptrace64aix (PTT_READ_GPRS, tid,
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(unsigned long) gprs64, 0, NULL))
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memset (gprs64, 0, sizeof (gprs64));
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memcpy (context->gpr, gprs64, sizeof(gprs64));
|
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}
|
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else
|
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{
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if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL))
|
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memset (gprs32, 0, sizeof (gprs32));
|
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memcpy (context->gpr, gprs32, sizeof(gprs32));
|
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}
|
|
}
|
|
|
|
/* Floating-point registers. */
|
|
if (flags & PTHDB_FLAG_FPRS)
|
|
{
|
|
if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL))
|
|
memset (fprs, 0, sizeof (fprs));
|
|
memcpy (context->fpr, fprs, sizeof(fprs));
|
|
}
|
|
|
|
/* Special-purpose registers. */
|
|
if (flags & PTHDB_FLAG_SPRS)
|
|
{
|
|
if (arch64)
|
|
{
|
|
if (!ptrace64aix (PTT_READ_SPRS, tid,
|
|
(unsigned long) &sprs64, 0, NULL))
|
|
memset (&sprs64, 0, sizeof (sprs64));
|
|
memcpy (&context->msr, &sprs64, sizeof(sprs64));
|
|
}
|
|
else
|
|
{
|
|
if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL))
|
|
memset (&sprs32, 0, sizeof (sprs32));
|
|
memcpy (&context->msr, &sprs32, sizeof(sprs32));
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Write register function should be able to write requested context
|
|
information to specified debuggee's kernel thread id.
|
|
If successful return 0, else non-zero is returned. */
|
|
|
|
static int
|
|
pdc_write_regs (pthdb_user_t user,
|
|
pthdb_tid_t tid,
|
|
unsigned long long flags,
|
|
pthdb_context_t *context)
|
|
{
|
|
/* This function doesn't appear to be used, so we could probably
|
|
just return 0 here. HOWEVER, if it is not defined, the OS will
|
|
complain and several thread debug functions will fail. In case
|
|
this is needed, I have implemented what I think it should do,
|
|
however this code is untested. */
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n",
|
|
(int) tid, hex_string (flags));
|
|
|
|
/* General-purpose registers. */
|
|
if (flags & PTHDB_FLAG_GPRS)
|
|
{
|
|
if (arch64)
|
|
ptrace64aix (PTT_WRITE_GPRS, tid,
|
|
(unsigned long) context->gpr, 0, NULL);
|
|
else
|
|
ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL);
|
|
}
|
|
|
|
/* Floating-point registers. */
|
|
if (flags & PTHDB_FLAG_FPRS)
|
|
{
|
|
ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL);
|
|
}
|
|
|
|
/* Special-purpose registers. */
|
|
if (flags & PTHDB_FLAG_SPRS)
|
|
{
|
|
if (arch64)
|
|
{
|
|
ptrace64aix (PTT_WRITE_SPRS, tid,
|
|
(unsigned long) &context->msr, 0, NULL);
|
|
}
|
|
else
|
|
{
|
|
ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* pthdb callback: read LEN bytes from process ADDR into BUF. */
|
|
|
|
static int
|
|
pdc_read_data (pthdb_user_t user, void *buf,
|
|
pthdb_addr_t addr, size_t len)
|
|
{
|
|
int status, ret;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n",
|
|
user, (long) buf, hex_string (addr), len);
|
|
|
|
status = target_read_memory (addr, (gdb_byte *) buf, len);
|
|
ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n",
|
|
status, pd_status2str (ret));
|
|
return ret;
|
|
}
|
|
|
|
/* pthdb callback: write LEN bytes from BUF to process ADDR. */
|
|
|
|
static int
|
|
pdc_write_data (pthdb_user_t user, void *buf,
|
|
pthdb_addr_t addr, size_t len)
|
|
{
|
|
int status, ret;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n",
|
|
user, (long) buf, hex_string (addr), len);
|
|
|
|
status = target_write_memory (addr, (gdb_byte *) buf, len);
|
|
ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status,
|
|
pd_status2str (ret));
|
|
return ret;
|
|
}
|
|
|
|
/* pthdb callback: allocate a LEN-byte buffer and store a pointer to it
|
|
in BUFP. */
|
|
|
|
static int
|
|
pdc_alloc (pthdb_user_t user, size_t len, void **bufp)
|
|
{
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n",
|
|
user, len, (long) bufp);
|
|
*bufp = xmalloc (len);
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
" malloc returned 0x%lx\n", (long) *bufp);
|
|
|
|
/* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never
|
|
be returned. */
|
|
|
|
return *bufp ? PDC_SUCCESS : PDC_FAILURE;
|
|
}
|
|
|
|
/* pthdb callback: reallocate BUF, which was allocated by the alloc or
|
|
realloc callback, so that it contains LEN bytes, and store a
|
|
pointer to the result in BUFP. */
|
|
|
|
static int
|
|
pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp)
|
|
{
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n",
|
|
user, (long) buf, len, (long) bufp);
|
|
*bufp = xrealloc (buf, len);
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
" realloc returned 0x%lx\n", (long) *bufp);
|
|
return *bufp ? PDC_SUCCESS : PDC_FAILURE;
|
|
}
|
|
|
|
/* pthdb callback: free BUF, which was allocated by the alloc or
|
|
realloc callback. */
|
|
|
|
static int
|
|
pdc_dealloc (pthdb_user_t user, void *buf)
|
|
{
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"pdc_free (user = %ld, buf = 0x%lx)\n", user,
|
|
(long) buf);
|
|
xfree (buf);
|
|
return PDC_SUCCESS;
|
|
}
|
|
|
|
/* Return a printable representation of pthread STATE. */
|
|
|
|
static char *
|
|
state2str (pthdb_state_t state)
|
|
{
|
|
switch (state)
|
|
{
|
|
case PST_IDLE:
|
|
/* i18n: Like "Thread-Id %d, [state] idle" */
|
|
return _("idle"); /* being created */
|
|
case PST_RUN:
|
|
/* i18n: Like "Thread-Id %d, [state] running" */
|
|
return _("running"); /* running */
|
|
case PST_SLEEP:
|
|
/* i18n: Like "Thread-Id %d, [state] sleeping" */
|
|
return _("sleeping"); /* awaiting an event */
|
|
case PST_READY:
|
|
/* i18n: Like "Thread-Id %d, [state] ready" */
|
|
return _("ready"); /* runnable */
|
|
case PST_TERM:
|
|
/* i18n: Like "Thread-Id %d, [state] finished" */
|
|
return _("finished"); /* awaiting a join/detach */
|
|
default:
|
|
/* i18n: Like "Thread-Id %d, [state] unknown" */
|
|
return _("unknown");
|
|
}
|
|
}
|
|
|
|
/* qsort() comparison function for sorting pd_thread structs by pthid. */
|
|
|
|
static int
|
|
pcmp (const void *p1v, const void *p2v)
|
|
{
|
|
struct pd_thread *p1 = (struct pd_thread *) p1v;
|
|
struct pd_thread *p2 = (struct pd_thread *) p2v;
|
|
return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid;
|
|
}
|
|
|
|
/* iterate_over_threads() callback for counting GDB threads.
|
|
|
|
Do not count the main thread (whose tid is zero). This matches
|
|
the list of threads provided by the pthreaddebug library, which
|
|
does not include that main thread either, and thus allows us
|
|
to compare the two lists. */
|
|
|
|
static int
|
|
giter_count (struct thread_info *thread, void *countp)
|
|
{
|
|
if (PD_TID (thread->ptid))
|
|
(*(int *) countp)++;
|
|
return 0;
|
|
}
|
|
|
|
/* iterate_over_threads() callback for accumulating GDB thread pids.
|
|
|
|
Do not include the main thread (whose tid is zero). This matches
|
|
the list of threads provided by the pthreaddebug library, which
|
|
does not include that main thread either, and thus allows us
|
|
to compare the two lists. */
|
|
|
|
static int
|
|
giter_accum (struct thread_info *thread, void *bufp)
|
|
{
|
|
if (PD_TID (thread->ptid))
|
|
{
|
|
**(struct thread_info ***) bufp = thread;
|
|
(*(struct thread_info ***) bufp)++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ptid comparison function */
|
|
|
|
static int
|
|
ptid_cmp (ptid_t ptid1, ptid_t ptid2)
|
|
{
|
|
if (ptid1.pid () < ptid2.pid ())
|
|
return -1;
|
|
else if (ptid1.pid () > ptid2.pid ())
|
|
return 1;
|
|
else if (ptid1.tid () < ptid2.tid ())
|
|
return -1;
|
|
else if (ptid1.tid () > ptid2.tid ())
|
|
return 1;
|
|
else if (ptid1.lwp () < ptid2.lwp ())
|
|
return -1;
|
|
else if (ptid1.lwp () > ptid2.lwp ())
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* qsort() comparison function for sorting thread_info structs by pid. */
|
|
|
|
static int
|
|
gcmp (const void *t1v, const void *t2v)
|
|
{
|
|
struct thread_info *t1 = *(struct thread_info **) t1v;
|
|
struct thread_info *t2 = *(struct thread_info **) t2v;
|
|
return ptid_cmp (t1->ptid, t2->ptid);
|
|
}
|
|
|
|
/* Search through the list of all kernel threads for the thread
|
|
that has stopped on a SIGTRAP signal, and return its TID.
|
|
Return 0 if none found. */
|
|
|
|
static pthdb_tid_t
|
|
get_signaled_thread (void)
|
|
{
|
|
struct thrdsinfo64 thrinf;
|
|
tid_t ktid = 0;
|
|
|
|
while (1)
|
|
{
|
|
if (getthrds (inferior_ptid.pid (), &thrinf,
|
|
sizeof (thrinf), &ktid, 1) != 1)
|
|
break;
|
|
|
|
if (thrinf.ti_cursig == SIGTRAP)
|
|
return thrinf.ti_tid;
|
|
}
|
|
|
|
/* Didn't find any thread stopped on a SIGTRAP signal. */
|
|
return 0;
|
|
}
|
|
|
|
/* Synchronize GDB's thread list with libpthdebug's.
|
|
|
|
There are some benefits of doing this every time the inferior stops:
|
|
|
|
- allows users to run thread-specific commands without needing to
|
|
run "info threads" first
|
|
|
|
- helps pthdb_tid_pthread() work properly (see "libpthdebug
|
|
peculiarities" at the top of this module)
|
|
|
|
- simplifies the demands placed on libpthdebug, which seems to
|
|
have difficulty with certain call patterns */
|
|
|
|
static void
|
|
sync_threadlists (void)
|
|
{
|
|
int cmd, status, infpid;
|
|
int pcount, psize, pi, gcount, gi;
|
|
struct pd_thread *pbuf;
|
|
struct thread_info **gbuf, **g, *thread;
|
|
pthdb_pthread_t pdtid;
|
|
pthread_t pthid;
|
|
pthdb_tid_t tid;
|
|
|
|
/* Accumulate an array of libpthdebug threads sorted by pthread id. */
|
|
|
|
pcount = 0;
|
|
psize = 1;
|
|
pbuf = XNEWVEC (struct pd_thread, psize);
|
|
|
|
for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT)
|
|
{
|
|
status = pthdb_pthread (pd_session, &pdtid, cmd);
|
|
if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD)
|
|
break;
|
|
|
|
status = pthdb_pthread_ptid (pd_session, pdtid, &pthid);
|
|
if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID)
|
|
continue;
|
|
|
|
if (pcount == psize)
|
|
{
|
|
psize *= 2;
|
|
pbuf = (struct pd_thread *) xrealloc (pbuf,
|
|
psize * sizeof *pbuf);
|
|
}
|
|
pbuf[pcount].pdtid = pdtid;
|
|
pbuf[pcount].pthid = pthid;
|
|
pcount++;
|
|
}
|
|
|
|
for (pi = 0; pi < pcount; pi++)
|
|
{
|
|
status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid);
|
|
if (status != PTHDB_SUCCESS)
|
|
tid = PTHDB_INVALID_TID;
|
|
pbuf[pi].tid = tid;
|
|
}
|
|
|
|
qsort (pbuf, pcount, sizeof *pbuf, pcmp);
|
|
|
|
/* Accumulate an array of GDB threads sorted by pid. */
|
|
|
|
gcount = 0;
|
|
iterate_over_threads (giter_count, &gcount);
|
|
g = gbuf = XNEWVEC (struct thread_info *, gcount);
|
|
iterate_over_threads (giter_accum, &g);
|
|
qsort (gbuf, gcount, sizeof *gbuf, gcmp);
|
|
|
|
/* Apply differences between the two arrays to GDB's thread list. */
|
|
|
|
infpid = inferior_ptid.pid ();
|
|
for (pi = gi = 0; pi < pcount || gi < gcount;)
|
|
{
|
|
if (pi == pcount)
|
|
{
|
|
delete_thread (gbuf[gi]);
|
|
gi++;
|
|
}
|
|
else if (gi == gcount)
|
|
{
|
|
aix_thread_info *priv = new aix_thread_info;
|
|
priv->pdtid = pbuf[pi].pdtid;
|
|
priv->tid = pbuf[pi].tid;
|
|
|
|
process_stratum_target *proc_target
|
|
= current_inferior ()->process_target ();
|
|
thread = add_thread_with_info (proc_target,
|
|
ptid_t (infpid, 0, pbuf[pi].pthid),
|
|
priv);
|
|
|
|
pi++;
|
|
}
|
|
else
|
|
{
|
|
ptid_t pptid, gptid;
|
|
int cmp_result;
|
|
|
|
pptid = ptid_t (infpid, 0, pbuf[pi].pthid);
|
|
gptid = gbuf[gi]->ptid;
|
|
pdtid = pbuf[pi].pdtid;
|
|
tid = pbuf[pi].tid;
|
|
|
|
cmp_result = ptid_cmp (pptid, gptid);
|
|
|
|
if (cmp_result == 0)
|
|
{
|
|
aix_thread_info *priv = get_aix_thread_info (gbuf[gi]);
|
|
|
|
priv->pdtid = pdtid;
|
|
priv->tid = tid;
|
|
pi++;
|
|
gi++;
|
|
}
|
|
else if (cmp_result > 0)
|
|
{
|
|
delete_thread (gbuf[gi]);
|
|
gi++;
|
|
}
|
|
else
|
|
{
|
|
process_stratum_target *proc_target
|
|
= current_inferior ()->process_target ();
|
|
thread = add_thread (proc_target, pptid);
|
|
|
|
aix_thread_info *priv = new aix_thread_info;
|
|
thread->priv.reset (priv);
|
|
priv->pdtid = pdtid;
|
|
priv->tid = tid;
|
|
pi++;
|
|
}
|
|
}
|
|
}
|
|
|
|
xfree (pbuf);
|
|
xfree (gbuf);
|
|
}
|
|
|
|
/* Iterate_over_threads() callback for locating a thread, using
|
|
the TID of its associated kernel thread. */
|
|
|
|
static int
|
|
iter_tid (struct thread_info *thread, void *tidp)
|
|
{
|
|
const pthdb_tid_t tid = *(pthdb_tid_t *)tidp;
|
|
aix_thread_info *priv = get_aix_thread_info (thread);
|
|
|
|
return priv->tid == tid;
|
|
}
|
|
|
|
/* Synchronize libpthdebug's state with the inferior and with GDB,
|
|
generate a composite process/thread <pid> for the current thread,
|
|
set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */
|
|
|
|
static ptid_t
|
|
pd_update (int set_infpid)
|
|
{
|
|
int status;
|
|
ptid_t ptid;
|
|
pthdb_tid_t tid;
|
|
struct thread_info *thread = NULL;
|
|
|
|
if (!pd_active)
|
|
return inferior_ptid;
|
|
|
|
status = pthdb_session_update (pd_session);
|
|
if (status != PTHDB_SUCCESS)
|
|
return inferior_ptid;
|
|
|
|
sync_threadlists ();
|
|
|
|
/* Define "current thread" as one that just received a trap signal. */
|
|
|
|
tid = get_signaled_thread ();
|
|
if (tid != 0)
|
|
thread = iterate_over_threads (iter_tid, &tid);
|
|
if (!thread)
|
|
ptid = inferior_ptid;
|
|
else
|
|
{
|
|
ptid = thread->ptid;
|
|
if (set_infpid)
|
|
inferior_ptid = ptid;
|
|
}
|
|
return ptid;
|
|
}
|
|
|
|
/* Try to start debugging threads in the current process.
|
|
If successful and SET_INFPID, set inferior_ptid to reflect the
|
|
current thread. */
|
|
|
|
static ptid_t
|
|
pd_activate (int set_infpid)
|
|
{
|
|
int status;
|
|
|
|
status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT,
|
|
PTHDB_FLAG_REGS, &pd_callbacks,
|
|
&pd_session);
|
|
if (status != PTHDB_SUCCESS)
|
|
{
|
|
return inferior_ptid;
|
|
}
|
|
pd_active = 1;
|
|
return pd_update (set_infpid);
|
|
}
|
|
|
|
/* Undo the effects of pd_activate(). */
|
|
|
|
static void
|
|
pd_deactivate (void)
|
|
{
|
|
if (!pd_active)
|
|
return;
|
|
pthdb_session_destroy (pd_session);
|
|
|
|
pid_to_prc (&inferior_ptid);
|
|
pd_active = 0;
|
|
}
|
|
|
|
/* An object file has just been loaded. Check whether the current
|
|
application is pthreaded, and if so, prepare for thread debugging. */
|
|
|
|
static void
|
|
pd_enable (void)
|
|
{
|
|
int status;
|
|
char *stub_name;
|
|
struct bound_minimal_symbol ms;
|
|
|
|
/* Don't initialize twice. */
|
|
if (pd_able)
|
|
return;
|
|
|
|
/* Check application word size. */
|
|
arch64 = register_size (target_gdbarch (), 0) == 8;
|
|
|
|
/* Check whether the application is pthreaded. */
|
|
stub_name = NULL;
|
|
status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS,
|
|
&pd_callbacks, &stub_name);
|
|
if ((status != PTHDB_SUCCESS
|
|
&& status != PTHDB_NOT_PTHREADED) || !stub_name)
|
|
return;
|
|
|
|
/* Set a breakpoint on the returned stub function. */
|
|
ms = lookup_minimal_symbol (stub_name, NULL, NULL);
|
|
if (ms.minsym == NULL)
|
|
return;
|
|
pd_brk_addr = BMSYMBOL_VALUE_ADDRESS (ms);
|
|
if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr))
|
|
return;
|
|
|
|
/* Prepare for thread debugging. */
|
|
push_target (&aix_thread_ops);
|
|
pd_able = 1;
|
|
|
|
/* If we're debugging a core file or an attached inferior, the
|
|
pthread library may already have been initialized, so try to
|
|
activate thread debugging. */
|
|
pd_activate (1);
|
|
}
|
|
|
|
/* Undo the effects of pd_enable(). */
|
|
|
|
static void
|
|
pd_disable (void)
|
|
{
|
|
if (!pd_able)
|
|
return;
|
|
if (pd_active)
|
|
pd_deactivate ();
|
|
pd_able = 0;
|
|
unpush_target (&aix_thread_ops);
|
|
}
|
|
|
|
/* new_objfile observer callback.
|
|
|
|
If OBJFILE is non-null, check whether a threaded application is
|
|
being debugged, and if so, prepare for thread debugging.
|
|
|
|
If OBJFILE is null, stop debugging threads. */
|
|
|
|
static void
|
|
new_objfile (struct objfile *objfile)
|
|
{
|
|
if (objfile)
|
|
pd_enable ();
|
|
else
|
|
pd_disable ();
|
|
}
|
|
|
|
/* Attach to process specified by ARGS. */
|
|
|
|
static void
|
|
aix_thread_inferior_created (struct target_ops *ops, int from_tty)
|
|
{
|
|
pd_enable ();
|
|
}
|
|
|
|
/* Detach from the process attached to by aix_thread_attach(). */
|
|
|
|
void
|
|
aix_thread_target::detach (inferior *inf, int from_tty)
|
|
{
|
|
target_ops *beneath = this->beneath ();
|
|
|
|
pd_disable ();
|
|
beneath->detach (inf, from_tty);
|
|
}
|
|
|
|
/* Tell the inferior process to continue running thread PID if != -1
|
|
and all threads otherwise. */
|
|
|
|
void
|
|
aix_thread_target::resume (ptid_t ptid, int step, enum gdb_signal sig)
|
|
{
|
|
struct thread_info *thread;
|
|
pthdb_tid_t tid[2];
|
|
|
|
if (!PD_TID (ptid))
|
|
{
|
|
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
|
|
|
|
inferior_ptid = ptid_t (inferior_ptid.pid ());
|
|
beneath ()->resume (ptid, step, sig);
|
|
}
|
|
else
|
|
{
|
|
thread = find_thread_ptid (current_inferior (), ptid);
|
|
if (!thread)
|
|
error (_("aix-thread resume: unknown pthread %ld"),
|
|
ptid.lwp ());
|
|
|
|
aix_thread_info *priv = get_aix_thread_info (thread);
|
|
|
|
tid[0] = priv->tid;
|
|
if (tid[0] == PTHDB_INVALID_TID)
|
|
error (_("aix-thread resume: no tid for pthread %ld"),
|
|
ptid.lwp ());
|
|
tid[1] = 0;
|
|
|
|
if (arch64)
|
|
ptrace64aix (PTT_CONTINUE, tid[0], (long long) 1,
|
|
gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid);
|
|
else
|
|
ptrace32 (PTT_CONTINUE, tid[0], (addr_ptr) 1,
|
|
gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid);
|
|
}
|
|
}
|
|
|
|
/* Wait for thread/process ID if != -1 or for any thread otherwise.
|
|
If an error occurs, return -1, else return the pid of the stopped
|
|
thread. */
|
|
|
|
ptid_t
|
|
aix_thread_target::wait (ptid_t ptid, struct target_waitstatus *status,
|
|
int options)
|
|
{
|
|
{
|
|
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
|
|
|
|
pid_to_prc (&ptid);
|
|
|
|
inferior_ptid = ptid_t (inferior_ptid.pid ());
|
|
ptid = beneath ()->wait (ptid, status, options);
|
|
}
|
|
|
|
if (ptid.pid () == -1)
|
|
return ptid_t (-1);
|
|
|
|
/* Check whether libpthdebug might be ready to be initialized. */
|
|
if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED
|
|
&& status->value.sig == GDB_SIGNAL_TRAP)
|
|
{
|
|
process_stratum_target *proc_target
|
|
= current_inferior ()->process_target ();
|
|
struct regcache *regcache = get_thread_regcache (proc_target, ptid);
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
|
|
if (regcache_read_pc (regcache)
|
|
- gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr)
|
|
return pd_activate (0);
|
|
}
|
|
|
|
return pd_update (0);
|
|
}
|
|
|
|
/* Record that the 64-bit general-purpose registers contain VALS. */
|
|
|
|
static void
|
|
supply_gprs64 (struct regcache *regcache, uint64_t *vals)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ());
|
|
int regno;
|
|
|
|
for (regno = 0; regno < ppc_num_gprs; regno++)
|
|
regcache->raw_supply (tdep->ppc_gp0_regnum + regno,
|
|
(char *) (vals + regno));
|
|
}
|
|
|
|
/* Record that 32-bit register REGNO contains VAL. */
|
|
|
|
static void
|
|
supply_reg32 (struct regcache *regcache, int regno, uint32_t val)
|
|
{
|
|
regcache->raw_supply (regno, (char *) &val);
|
|
}
|
|
|
|
/* Record that the floating-point registers contain VALS. */
|
|
|
|
static void
|
|
supply_fprs (struct regcache *regcache, double *vals)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
int regno;
|
|
|
|
/* This function should never be called on architectures without
|
|
floating-point registers. */
|
|
gdb_assert (ppc_floating_point_unit_p (gdbarch));
|
|
|
|
for (regno = tdep->ppc_fp0_regnum;
|
|
regno < tdep->ppc_fp0_regnum + ppc_num_fprs;
|
|
regno++)
|
|
regcache->raw_supply (regno,
|
|
(char *) (vals + regno - tdep->ppc_fp0_regnum));
|
|
}
|
|
|
|
/* Predicate to test whether given register number is a "special" register. */
|
|
static int
|
|
special_register_p (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
return regno == gdbarch_pc_regnum (gdbarch)
|
|
|| regno == tdep->ppc_ps_regnum
|
|
|| regno == tdep->ppc_cr_regnum
|
|
|| regno == tdep->ppc_lr_regnum
|
|
|| regno == tdep->ppc_ctr_regnum
|
|
|| regno == tdep->ppc_xer_regnum
|
|
|| (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum)
|
|
|| (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum);
|
|
}
|
|
|
|
|
|
/* Record that the special registers contain the specified 64-bit and
|
|
32-bit values. */
|
|
|
|
static void
|
|
supply_sprs64 (struct regcache *regcache,
|
|
uint64_t iar, uint64_t msr, uint32_t cr,
|
|
uint64_t lr, uint64_t ctr, uint32_t xer,
|
|
uint32_t fpscr)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
regcache->raw_supply (gdbarch_pc_regnum (gdbarch), (char *) &iar);
|
|
regcache->raw_supply (tdep->ppc_ps_regnum, (char *) &msr);
|
|
regcache->raw_supply (tdep->ppc_cr_regnum, (char *) &cr);
|
|
regcache->raw_supply (tdep->ppc_lr_regnum, (char *) &lr);
|
|
regcache->raw_supply (tdep->ppc_ctr_regnum, (char *) &ctr);
|
|
regcache->raw_supply (tdep->ppc_xer_regnum, (char *) &xer);
|
|
if (tdep->ppc_fpscr_regnum >= 0)
|
|
regcache->raw_supply (tdep->ppc_fpscr_regnum, (char *) &fpscr);
|
|
}
|
|
|
|
/* Record that the special registers contain the specified 32-bit
|
|
values. */
|
|
|
|
static void
|
|
supply_sprs32 (struct regcache *regcache,
|
|
uint32_t iar, uint32_t msr, uint32_t cr,
|
|
uint32_t lr, uint32_t ctr, uint32_t xer,
|
|
uint32_t fpscr)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
regcache->raw_supply (gdbarch_pc_regnum (gdbarch), (char *) &iar);
|
|
regcache->raw_supply (tdep->ppc_ps_regnum, (char *) &msr);
|
|
regcache->raw_supply (tdep->ppc_cr_regnum, (char *) &cr);
|
|
regcache->raw_supply (tdep->ppc_lr_regnum, (char *) &lr);
|
|
regcache->raw_supply (tdep->ppc_ctr_regnum, (char *) &ctr);
|
|
regcache->raw_supply (tdep->ppc_xer_regnum, (char *) &xer);
|
|
if (tdep->ppc_fpscr_regnum >= 0)
|
|
regcache->raw_supply (tdep->ppc_fpscr_regnum, (char *) &fpscr);
|
|
}
|
|
|
|
/* Fetch all registers from pthread PDTID, which doesn't have a kernel
|
|
thread.
|
|
|
|
There's no way to query a single register from a non-kernel
|
|
pthread, so there's no need for a single-register version of this
|
|
function. */
|
|
|
|
static void
|
|
fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
int status, i;
|
|
pthdb_context_t ctx;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"fetch_regs_user_thread %lx\n", (long) pdtid);
|
|
status = pthdb_pthread_context (pd_session, pdtid, &ctx);
|
|
if (status != PTHDB_SUCCESS)
|
|
error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"),
|
|
pd_status2str (status));
|
|
|
|
/* General-purpose registers. */
|
|
|
|
if (arch64)
|
|
supply_gprs64 (regcache, ctx.gpr);
|
|
else
|
|
for (i = 0; i < ppc_num_gprs; i++)
|
|
supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]);
|
|
|
|
/* Floating-point registers. */
|
|
|
|
if (ppc_floating_point_unit_p (gdbarch))
|
|
supply_fprs (regcache, ctx.fpr);
|
|
|
|
/* Special registers. */
|
|
|
|
if (arch64)
|
|
supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr,
|
|
ctx.xer, ctx.fpscr);
|
|
else
|
|
supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr,
|
|
ctx.xer, ctx.fpscr);
|
|
}
|
|
|
|
/* Fetch register REGNO if != -1 or all registers otherwise from
|
|
kernel thread TID.
|
|
|
|
AIX provides a way to query all of a kernel thread's GPRs, FPRs, or
|
|
SPRs, but there's no way to query individual registers within those
|
|
groups. Therefore, if REGNO != -1, this function fetches an entire
|
|
group.
|
|
|
|
Unfortunately, kernel thread register queries often fail with
|
|
EPERM, indicating that the thread is in kernel space. This breaks
|
|
backtraces of threads other than the current one. To make that
|
|
breakage obvious without throwing an error to top level (which is
|
|
bad e.g. during "info threads" output), zero registers that can't
|
|
be retrieved. */
|
|
|
|
static void
|
|
fetch_regs_kernel_thread (struct regcache *regcache, int regno,
|
|
pthdb_tid_t tid)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
uint64_t gprs64[ppc_num_gprs];
|
|
uint32_t gprs32[ppc_num_gprs];
|
|
double fprs[ppc_num_fprs];
|
|
struct ptxsprs sprs64;
|
|
struct ptsprs sprs32;
|
|
int i;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n",
|
|
(long) tid, regno, arch64);
|
|
|
|
/* General-purpose registers. */
|
|
if (regno == -1
|
|
|| (tdep->ppc_gp0_regnum <= regno
|
|
&& regno < tdep->ppc_gp0_regnum + ppc_num_gprs))
|
|
{
|
|
if (arch64)
|
|
{
|
|
if (!ptrace64aix (PTT_READ_GPRS, tid,
|
|
(unsigned long) gprs64, 0, NULL))
|
|
memset (gprs64, 0, sizeof (gprs64));
|
|
supply_gprs64 (regcache, gprs64);
|
|
}
|
|
else
|
|
{
|
|
if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL))
|
|
memset (gprs32, 0, sizeof (gprs32));
|
|
for (i = 0; i < ppc_num_gprs; i++)
|
|
supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]);
|
|
}
|
|
}
|
|
|
|
/* Floating-point registers. */
|
|
|
|
if (ppc_floating_point_unit_p (gdbarch)
|
|
&& (regno == -1
|
|
|| (regno >= tdep->ppc_fp0_regnum
|
|
&& regno < tdep->ppc_fp0_regnum + ppc_num_fprs)))
|
|
{
|
|
if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL))
|
|
memset (fprs, 0, sizeof (fprs));
|
|
supply_fprs (regcache, fprs);
|
|
}
|
|
|
|
/* Special-purpose registers. */
|
|
|
|
if (regno == -1 || special_register_p (gdbarch, regno))
|
|
{
|
|
if (arch64)
|
|
{
|
|
if (!ptrace64aix (PTT_READ_SPRS, tid,
|
|
(unsigned long) &sprs64, 0, NULL))
|
|
memset (&sprs64, 0, sizeof (sprs64));
|
|
supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr,
|
|
sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr,
|
|
sprs64.pt_xer, sprs64.pt_fpscr);
|
|
}
|
|
else
|
|
{
|
|
if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL))
|
|
memset (&sprs32, 0, sizeof (sprs32));
|
|
supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr,
|
|
sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer,
|
|
sprs32.pt_fpscr);
|
|
|
|
if (tdep->ppc_mq_regnum >= 0)
|
|
regcache->raw_supply (tdep->ppc_mq_regnum, (char *) &sprs32.pt_mq);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fetch register REGNO if != -1 or all registers otherwise from the
|
|
thread/process connected to REGCACHE. */
|
|
|
|
void
|
|
aix_thread_target::fetch_registers (struct regcache *regcache, int regno)
|
|
{
|
|
struct thread_info *thread;
|
|
pthdb_tid_t tid;
|
|
|
|
if (!PD_TID (regcache->ptid ()))
|
|
beneath ()->fetch_registers (regcache, regno);
|
|
else
|
|
{
|
|
thread = find_thread_ptid (current_inferior (), regcache->ptid ());
|
|
aix_thread_info *priv = get_aix_thread_info (thread);
|
|
tid = priv->tid;
|
|
|
|
if (tid == PTHDB_INVALID_TID)
|
|
fetch_regs_user_thread (regcache, priv->pdtid);
|
|
else
|
|
fetch_regs_kernel_thread (regcache, regno, tid);
|
|
}
|
|
}
|
|
|
|
/* Store the gp registers into an array of uint32_t or uint64_t. */
|
|
|
|
static void
|
|
fill_gprs64 (const struct regcache *regcache, uint64_t *vals)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ());
|
|
int regno;
|
|
|
|
for (regno = 0; regno < ppc_num_gprs; regno++)
|
|
if (REG_VALID == regcache->get_register_status
|
|
(tdep->ppc_gp0_regnum + regno))
|
|
regcache->raw_collect (tdep->ppc_gp0_regnum + regno, vals + regno);
|
|
}
|
|
|
|
static void
|
|
fill_gprs32 (const struct regcache *regcache, uint32_t *vals)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ());
|
|
int regno;
|
|
|
|
for (regno = 0; regno < ppc_num_gprs; regno++)
|
|
if (REG_VALID == regcache->get_register_status
|
|
(tdep->ppc_gp0_regnum + regno))
|
|
regcache->raw_collect (tdep->ppc_gp0_regnum + regno, vals + regno);
|
|
}
|
|
|
|
/* Store the floating point registers into a double array. */
|
|
static void
|
|
fill_fprs (const struct regcache *regcache, double *vals)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
int regno;
|
|
|
|
/* This function should never be called on architectures without
|
|
floating-point registers. */
|
|
gdb_assert (ppc_floating_point_unit_p (gdbarch));
|
|
|
|
for (regno = tdep->ppc_fp0_regnum;
|
|
regno < tdep->ppc_fp0_regnum + ppc_num_fprs;
|
|
regno++)
|
|
if (REG_VALID == regcache->get_register_status (regno))
|
|
regcache->raw_collect (regno, vals + regno - tdep->ppc_fp0_regnum);
|
|
}
|
|
|
|
/* Store the special registers into the specified 64-bit and 32-bit
|
|
locations. */
|
|
|
|
static void
|
|
fill_sprs64 (const struct regcache *regcache,
|
|
uint64_t *iar, uint64_t *msr, uint32_t *cr,
|
|
uint64_t *lr, uint64_t *ctr, uint32_t *xer,
|
|
uint32_t *fpscr)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
/* Verify that the size of the size of the IAR buffer is the
|
|
same as the raw size of the PC (in the register cache). If
|
|
they're not, then either GDB has been built incorrectly, or
|
|
there's some other kind of internal error. To be really safe,
|
|
we should check all of the sizes. */
|
|
gdb_assert (sizeof (*iar) == register_size
|
|
(gdbarch, gdbarch_pc_regnum (gdbarch)));
|
|
|
|
if (REG_VALID == regcache->get_register_status (gdbarch_pc_regnum (gdbarch)))
|
|
regcache->raw_collect (gdbarch_pc_regnum (gdbarch), iar);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_ps_regnum))
|
|
regcache->raw_collect (tdep->ppc_ps_regnum, msr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_cr_regnum))
|
|
regcache->raw_collect (tdep->ppc_cr_regnum, cr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_lr_regnum))
|
|
regcache->raw_collect (tdep->ppc_lr_regnum, lr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_ctr_regnum))
|
|
regcache->raw_collect (tdep->ppc_ctr_regnum, ctr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum))
|
|
regcache->raw_collect (tdep->ppc_xer_regnum, xer);
|
|
if (tdep->ppc_fpscr_regnum >= 0
|
|
&& REG_VALID == regcache->get_register_status (tdep->ppc_fpscr_regnum))
|
|
regcache->raw_collect (tdep->ppc_fpscr_regnum, fpscr);
|
|
}
|
|
|
|
static void
|
|
fill_sprs32 (const struct regcache *regcache,
|
|
uint32_t *iar, uint32_t *msr, uint32_t *cr,
|
|
uint32_t *lr, uint32_t *ctr, uint32_t *xer,
|
|
uint32_t *fpscr)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
/* Verify that the size of the size of the IAR buffer is the
|
|
same as the raw size of the PC (in the register cache). If
|
|
they're not, then either GDB has been built incorrectly, or
|
|
there's some other kind of internal error. To be really safe,
|
|
we should check all of the sizes. */
|
|
gdb_assert (sizeof (*iar) == register_size (gdbarch,
|
|
gdbarch_pc_regnum (gdbarch)));
|
|
|
|
if (REG_VALID == regcache->get_register_status (gdbarch_pc_regnum (gdbarch)))
|
|
regcache->raw_collect (gdbarch_pc_regnum (gdbarch), iar);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_ps_regnum))
|
|
regcache->raw_collect (tdep->ppc_ps_regnum, msr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_cr_regnum))
|
|
regcache->raw_collect (tdep->ppc_cr_regnum, cr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_lr_regnum))
|
|
regcache->raw_collect (tdep->ppc_lr_regnum, lr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_ctr_regnum))
|
|
regcache->raw_collect (tdep->ppc_ctr_regnum, ctr);
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum))
|
|
regcache->raw_collect (tdep->ppc_xer_regnum, xer);
|
|
if (tdep->ppc_fpscr_regnum >= 0
|
|
&& REG_VALID == regcache->get_register_status (tdep->ppc_fpscr_regnum))
|
|
regcache->raw_collect (tdep->ppc_fpscr_regnum, fpscr);
|
|
}
|
|
|
|
/* Store all registers into pthread PDTID, which doesn't have a kernel
|
|
thread.
|
|
|
|
It's possible to store a single register into a non-kernel pthread,
|
|
but I doubt it's worth the effort. */
|
|
|
|
static void
|
|
store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
int status, i;
|
|
pthdb_context_t ctx;
|
|
uint32_t int32;
|
|
uint64_t int64;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"store_regs_user_thread %lx\n", (long) pdtid);
|
|
|
|
/* Retrieve the thread's current context for its non-register
|
|
values. */
|
|
status = pthdb_pthread_context (pd_session, pdtid, &ctx);
|
|
if (status != PTHDB_SUCCESS)
|
|
error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"),
|
|
pd_status2str (status));
|
|
|
|
/* Collect general-purpose register values from the regcache. */
|
|
|
|
for (i = 0; i < ppc_num_gprs; i++)
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_gp0_regnum + i))
|
|
{
|
|
if (arch64)
|
|
{
|
|
regcache->raw_collect (tdep->ppc_gp0_regnum + i, (void *) &int64);
|
|
ctx.gpr[i] = int64;
|
|
}
|
|
else
|
|
{
|
|
regcache->raw_collect (tdep->ppc_gp0_regnum + i, (void *) &int32);
|
|
ctx.gpr[i] = int32;
|
|
}
|
|
}
|
|
|
|
/* Collect floating-point register values from the regcache. */
|
|
if (ppc_floating_point_unit_p (gdbarch))
|
|
fill_fprs (regcache, ctx.fpr);
|
|
|
|
/* Special registers (always kept in ctx as 64 bits). */
|
|
if (arch64)
|
|
{
|
|
fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr,
|
|
&ctx.xer, &ctx.fpscr);
|
|
}
|
|
else
|
|
{
|
|
/* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32.
|
|
Solution: use 32-bit temp variables. */
|
|
uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer,
|
|
tmp_fpscr;
|
|
|
|
fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr,
|
|
&tmp_xer, &tmp_fpscr);
|
|
if (REG_VALID == regcache->get_register_status
|
|
(gdbarch_pc_regnum (gdbarch)))
|
|
ctx.iar = tmp_iar;
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_ps_regnum))
|
|
ctx.msr = tmp_msr;
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_cr_regnum))
|
|
ctx.cr = tmp_cr;
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_lr_regnum))
|
|
ctx.lr = tmp_lr;
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_ctr_regnum))
|
|
ctx.ctr = tmp_ctr;
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum))
|
|
ctx.xer = tmp_xer;
|
|
if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum))
|
|
ctx.fpscr = tmp_fpscr;
|
|
}
|
|
|
|
status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx);
|
|
if (status != PTHDB_SUCCESS)
|
|
error (_("aix-thread: store_registers: "
|
|
"pthdb_pthread_setcontext returned %s"),
|
|
pd_status2str (status));
|
|
}
|
|
|
|
/* Store register REGNO if != -1 or all registers otherwise into
|
|
kernel thread TID.
|
|
|
|
AIX provides a way to set all of a kernel thread's GPRs, FPRs, or
|
|
SPRs, but there's no way to set individual registers within those
|
|
groups. Therefore, if REGNO != -1, this function stores an entire
|
|
group. */
|
|
|
|
static void
|
|
store_regs_kernel_thread (const struct regcache *regcache, int regno,
|
|
pthdb_tid_t tid)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
uint64_t gprs64[ppc_num_gprs];
|
|
uint32_t gprs32[ppc_num_gprs];
|
|
double fprs[ppc_num_fprs];
|
|
struct ptxsprs sprs64;
|
|
struct ptsprs sprs32;
|
|
|
|
if (debug_aix_thread)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"store_regs_kernel_thread tid=%lx regno=%d\n",
|
|
(long) tid, regno);
|
|
|
|
/* General-purpose registers. */
|
|
if (regno == -1
|
|
|| (tdep->ppc_gp0_regnum <= regno
|
|
&& regno < tdep->ppc_gp0_regnum + ppc_num_fprs))
|
|
{
|
|
if (arch64)
|
|
{
|
|
/* Pre-fetch: some regs may not be in the cache. */
|
|
ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL);
|
|
fill_gprs64 (regcache, gprs64);
|
|
ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL);
|
|
}
|
|
else
|
|
{
|
|
/* Pre-fetch: some regs may not be in the cache. */
|
|
ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL);
|
|
fill_gprs32 (regcache, gprs32);
|
|
ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL);
|
|
}
|
|
}
|
|
|
|
/* Floating-point registers. */
|
|
|
|
if (ppc_floating_point_unit_p (gdbarch)
|
|
&& (regno == -1
|
|
|| (regno >= tdep->ppc_fp0_regnum
|
|
&& regno < tdep->ppc_fp0_regnum + ppc_num_fprs)))
|
|
{
|
|
/* Pre-fetch: some regs may not be in the cache. */
|
|
ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL);
|
|
fill_fprs (regcache, fprs);
|
|
ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL);
|
|
}
|
|
|
|
/* Special-purpose registers. */
|
|
|
|
if (regno == -1 || special_register_p (gdbarch, regno))
|
|
{
|
|
if (arch64)
|
|
{
|
|
/* Pre-fetch: some registers won't be in the cache. */
|
|
ptrace64aix (PTT_READ_SPRS, tid,
|
|
(unsigned long) &sprs64, 0, NULL);
|
|
fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr,
|
|
&sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr,
|
|
&sprs64.pt_xer, &sprs64.pt_fpscr);
|
|
ptrace64aix (PTT_WRITE_SPRS, tid,
|
|
(unsigned long) &sprs64, 0, NULL);
|
|
}
|
|
else
|
|
{
|
|
/* The contents of "struct ptspr" were declared as "unsigned
|
|
long" up to AIX 5.2, but are "unsigned int" since 5.3.
|
|
Use temporaries to work around this problem. Also, add an
|
|
assert here to make sure we fail if the system header files
|
|
use "unsigned long", and the size of that type is not what
|
|
the headers expect. */
|
|
uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer,
|
|
tmp_fpscr;
|
|
|
|
gdb_assert (sizeof (sprs32.pt_iar) == 4);
|
|
|
|
/* Pre-fetch: some registers won't be in the cache. */
|
|
ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL);
|
|
|
|
fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr,
|
|
&tmp_ctr, &tmp_xer, &tmp_fpscr);
|
|
|
|
sprs32.pt_iar = tmp_iar;
|
|
sprs32.pt_msr = tmp_msr;
|
|
sprs32.pt_cr = tmp_cr;
|
|
sprs32.pt_lr = tmp_lr;
|
|
sprs32.pt_ctr = tmp_ctr;
|
|
sprs32.pt_xer = tmp_xer;
|
|
sprs32.pt_fpscr = tmp_fpscr;
|
|
|
|
if (tdep->ppc_mq_regnum >= 0)
|
|
if (REG_VALID == regcache->get_register_status
|
|
(tdep->ppc_mq_regnum))
|
|
regcache->raw_collect (tdep->ppc_mq_regnum, &sprs32.pt_mq);
|
|
|
|
ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Store gdb's current view of the register set into the
|
|
thread/process connected to REGCACHE. */
|
|
|
|
void
|
|
aix_thread_target::store_registers (struct regcache *regcache, int regno)
|
|
{
|
|
struct thread_info *thread;
|
|
pthdb_tid_t tid;
|
|
|
|
if (!PD_TID (regcache->ptid ()))
|
|
beneath ()->store_registers (regcache, regno);
|
|
else
|
|
{
|
|
thread = find_thread_ptid (current_inferior (), regcache->ptid ());
|
|
aix_thread_info *priv = get_aix_thread_info (thread);
|
|
tid = priv->tid;
|
|
|
|
if (tid == PTHDB_INVALID_TID)
|
|
store_regs_user_thread (regcache, priv->pdtid);
|
|
else
|
|
store_regs_kernel_thread (regcache, regno, tid);
|
|
}
|
|
}
|
|
|
|
/* Implement the to_xfer_partial target_ops method. */
|
|
|
|
enum target_xfer_status
|
|
aix_thread_target::xfer_partial (enum target_object object,
|
|
const char *annex, gdb_byte *readbuf,
|
|
const gdb_byte *writebuf,
|
|
ULONGEST offset, ULONGEST len,
|
|
ULONGEST *xfered_len)
|
|
{
|
|
scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
|
|
|
|
inferior_ptid = ptid_t (inferior_ptid.pid ());
|
|
return beneath ()->xfer_partial (object, annex, readbuf,
|
|
writebuf, offset, len, xfered_len);
|
|
}
|
|
|
|
/* Clean up after the inferior exits. */
|
|
|
|
void
|
|
aix_thread_target::mourn_inferior ()
|
|
{
|
|
target_ops *beneath = this->beneath ();
|
|
|
|
pd_deactivate ();
|
|
beneath->mourn_inferior ();
|
|
}
|
|
|
|
/* Return whether thread PID is still valid. */
|
|
|
|
bool
|
|
aix_thread_target::thread_alive (ptid_t ptid)
|
|
{
|
|
if (!PD_TID (ptid))
|
|
return beneath ()->thread_alive (ptid);
|
|
|
|
/* We update the thread list every time the child stops, so all
|
|
valid threads should be in the thread list. */
|
|
process_stratum_target *proc_target
|
|
= current_inferior ()->process_target ();
|
|
return in_thread_list (proc_target, ptid);
|
|
}
|
|
|
|
/* Return a printable representation of composite PID for use in
|
|
"info threads" output. */
|
|
|
|
std::string
|
|
aix_thread_target::pid_to_str (ptid_t ptid)
|
|
{
|
|
if (!PD_TID (ptid))
|
|
return beneath ()->pid_to_str (ptid);
|
|
|
|
return string_printf (_("Thread %ld"), ptid.tid ());
|
|
}
|
|
|
|
/* Return a printable representation of extra information about
|
|
THREAD, for use in "info threads" output. */
|
|
|
|
const char *
|
|
aix_thread_target::extra_thread_info (struct thread_info *thread)
|
|
{
|
|
int status;
|
|
pthdb_pthread_t pdtid;
|
|
pthdb_tid_t tid;
|
|
pthdb_state_t state;
|
|
pthdb_suspendstate_t suspendstate;
|
|
pthdb_detachstate_t detachstate;
|
|
int cancelpend;
|
|
static char *ret = NULL;
|
|
|
|
if (!PD_TID (thread->ptid))
|
|
return NULL;
|
|
|
|
string_file buf;
|
|
aix_thread_info *priv = get_aix_thread_info (thread);
|
|
|
|
pdtid = priv->pdtid;
|
|
tid = priv->tid;
|
|
|
|
if (tid != PTHDB_INVALID_TID)
|
|
/* i18n: Like "thread-identifier %d, [state] running, suspended" */
|
|
buf.printf (_("tid %d"), (int)tid);
|
|
|
|
status = pthdb_pthread_state (pd_session, pdtid, &state);
|
|
if (status != PTHDB_SUCCESS)
|
|
state = PST_NOTSUP;
|
|
buf.printf (", %s", state2str (state));
|
|
|
|
status = pthdb_pthread_suspendstate (pd_session, pdtid,
|
|
&suspendstate);
|
|
if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED)
|
|
/* i18n: Like "Thread-Id %d, [state] running, suspended" */
|
|
buf.printf (_(", suspended"));
|
|
|
|
status = pthdb_pthread_detachstate (pd_session, pdtid,
|
|
&detachstate);
|
|
if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED)
|
|
/* i18n: Like "Thread-Id %d, [state] running, detached" */
|
|
buf.printf (_(", detached"));
|
|
|
|
pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend);
|
|
if (status == PTHDB_SUCCESS && cancelpend)
|
|
/* i18n: Like "Thread-Id %d, [state] running, cancel pending" */
|
|
buf.printf (_(", cancel pending"));
|
|
|
|
buf.write ("", 1);
|
|
|
|
xfree (ret); /* Free old buffer. */
|
|
|
|
ret = xstrdup (buf.c_str ());
|
|
|
|
return ret;
|
|
}
|
|
|
|
ptid_t
|
|
aix_thread_target::get_ada_task_ptid (long lwp, long thread)
|
|
{
|
|
return ptid_t (inferior_ptid.pid (), 0, thread);
|
|
}
|
|
|
|
|
|
/* Module startup initialization function, automagically called by
|
|
init.c. */
|
|
|
|
void _initialize_aix_thread ();
|
|
void
|
|
_initialize_aix_thread ()
|
|
{
|
|
/* Notice when object files get loaded and unloaded. */
|
|
gdb::observers::new_objfile.attach (new_objfile);
|
|
|
|
/* Add ourselves to inferior_created event chain.
|
|
This is needed to enable the thread target on "attach". */
|
|
gdb::observers::inferior_created.attach (aix_thread_inferior_created);
|
|
|
|
add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread,
|
|
_("Set debugging of AIX thread module."),
|
|
_("Show debugging of AIX thread module."),
|
|
_("Enables debugging output (used to debug GDB)."),
|
|
NULL, NULL,
|
|
/* FIXME: i18n: Debugging of AIX thread
|
|
module is \"%d\". */
|
|
&setdebuglist, &showdebuglist);
|
|
}
|