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binutils-gdb/gdb/mips-fbsd-tdep.c
Simon Marchi 6c2659886f gdb: add back declarations for _initialize functions 
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
2020-01-13 14:01:38 -05:00

563 lines
17 KiB
C
Raw Blame History

/* Target-dependent code for FreeBSD/mips.
Copyright (C) 2017-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "osabi.h"
#include "regset.h"
#include "trad-frame.h"
#include "tramp-frame.h"
#include "fbsd-tdep.h"
#include "mips-tdep.h"
#include "mips-fbsd-tdep.h"
#include "solib-svr4.h"
/* Core file support. */
/* Number of registers in `struct reg' from <machine/reg.h>. The
first 38 follow the standard MIPS layout. The 39th holds
IC_INT_REG on RM7K and RM9K processors. The 40th is a dummy for
padding. */
#define MIPS_FBSD_NUM_GREGS 40
/* Number of registers in `struct fpreg' from <machine/reg.h>. The
first 32 hold floating point registers. 33 holds the FSR. The
34th holds FIR on FreeBSD 12.0 and newer kernels. On older kernels
it was a zero-filled dummy for padding. */
#define MIPS_FBSD_NUM_FPREGS 34
/* Supply a single register. The register size might not match, so use
regcache->raw_supply_integer (). */
static void
mips_fbsd_supply_reg (struct regcache *regcache, int regnum, const void *addr,
size_t len)
{
regcache->raw_supply_integer (regnum, (const gdb_byte *) addr, len, true);
}
/* Collect a single register. The register size might not match, so use
regcache->raw_collect_integer (). */
static void
mips_fbsd_collect_reg (const struct regcache *regcache, int regnum, void *addr,
size_t len)
{
regcache->raw_collect_integer (regnum, (gdb_byte *) addr, len, true);
}
/* Supply the floating-point registers stored in FPREGS to REGCACHE.
Each floating-point register in FPREGS is REGSIZE bytes in
length. */
void
mips_fbsd_supply_fpregs (struct regcache *regcache, int regnum,
const void *fpregs, size_t regsize)
{
struct gdbarch *gdbarch = regcache->arch ();
const gdb_byte *regs = (const gdb_byte *) fpregs;
int i, fp0num;
fp0num = mips_regnum (gdbarch)->fp0;
for (i = 0; i <= 32; i++)
if (regnum == fp0num + i || regnum == -1)
mips_fbsd_supply_reg (regcache, fp0num + i,
regs + i * regsize, regsize);
if (regnum == mips_regnum (gdbarch)->fp_control_status || regnum == -1)
mips_fbsd_supply_reg (regcache, mips_regnum (gdbarch)->fp_control_status,
regs + 32 * regsize, regsize);
if ((regnum == mips_regnum (gdbarch)->fp_implementation_revision
|| regnum == -1)
&& extract_unsigned_integer (regs + 33 * regsize, regsize,
gdbarch_byte_order (gdbarch)) != 0)
mips_fbsd_supply_reg (regcache,
mips_regnum (gdbarch)->fp_implementation_revision,
regs + 33 * regsize, regsize);
}
/* Supply the general-purpose registers stored in GREGS to REGCACHE.
Each general-purpose register in GREGS is REGSIZE bytes in
length. */
void
mips_fbsd_supply_gregs (struct regcache *regcache, int regnum,
const void *gregs, size_t regsize)
{
struct gdbarch *gdbarch = regcache->arch ();
const gdb_byte *regs = (const gdb_byte *) gregs;
int i;
for (i = 0; i <= mips_regnum (gdbarch)->pc; i++)
if (regnum == i || regnum == -1)
mips_fbsd_supply_reg (regcache, i, regs + i * regsize, regsize);
}
/* Collect the floating-point registers from REGCACHE and store them
in FPREGS. Each floating-point register in FPREGS is REGSIZE bytes
in length. */
void
mips_fbsd_collect_fpregs (const struct regcache *regcache, int regnum,
void *fpregs, size_t regsize)
{
struct gdbarch *gdbarch = regcache->arch ();
gdb_byte *regs = (gdb_byte *) fpregs;
int i, fp0num;
fp0num = mips_regnum (gdbarch)->fp0;
for (i = 0; i < 32; i++)
if (regnum == fp0num + i || regnum == -1)
mips_fbsd_collect_reg (regcache, fp0num + i,
regs + i * regsize, regsize);
if (regnum == mips_regnum (gdbarch)->fp_control_status || regnum == -1)
mips_fbsd_collect_reg (regcache, mips_regnum (gdbarch)->fp_control_status,
regs + 32 * regsize, regsize);
if (regnum == mips_regnum (gdbarch)->fp_implementation_revision
|| regnum == -1)
mips_fbsd_collect_reg (regcache,
mips_regnum (gdbarch)->fp_implementation_revision,
regs + 33 * regsize, regsize);
}
/* Collect the general-purpose registers from REGCACHE and store them
in GREGS. Each general-purpose register in GREGS is REGSIZE bytes
in length. */
void
mips_fbsd_collect_gregs (const struct regcache *regcache, int regnum,
void *gregs, size_t regsize)
{
struct gdbarch *gdbarch = regcache->arch ();
gdb_byte *regs = (gdb_byte *) gregs;
int i;
for (i = 0; i <= mips_regnum (gdbarch)->pc; i++)
if (regnum == i || regnum == -1)
mips_fbsd_collect_reg (regcache, i, regs + i * regsize, regsize);
}
/* Supply register REGNUM from the buffer specified by FPREGS and LEN
in the floating-point register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
static void
mips_fbsd_supply_fpregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
size_t regsize = mips_abi_regsize (regcache->arch ());
gdb_assert (len >= MIPS_FBSD_NUM_FPREGS * regsize);
mips_fbsd_supply_fpregs (regcache, regnum, fpregs, regsize);
}
/* Collect register REGNUM from the register cache REGCACHE and store
it in the buffer specified by FPREGS and LEN in the floating-point
register set REGSET. If REGNUM is -1, do this for all registers in
REGSET. */
static void
mips_fbsd_collect_fpregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *fpregs, size_t len)
{
size_t regsize = mips_abi_regsize (regcache->arch ());
gdb_assert (len >= MIPS_FBSD_NUM_FPREGS * regsize);
mips_fbsd_collect_fpregs (regcache, regnum, fpregs, regsize);
}
/* Supply register REGNUM from the buffer specified by GREGS and LEN
in the general-purpose register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
static void
mips_fbsd_supply_gregset (const struct regset *regset,
struct regcache *regcache, int regnum,
const void *gregs, size_t len)
{
size_t regsize = mips_abi_regsize (regcache->arch ());
gdb_assert (len >= MIPS_FBSD_NUM_GREGS * regsize);
mips_fbsd_supply_gregs (regcache, regnum, gregs, regsize);
}
/* Collect register REGNUM from the register cache REGCACHE and store
it in the buffer specified by GREGS and LEN in the general-purpose
register set REGSET. If REGNUM is -1, do this for all registers in
REGSET. */
static void
mips_fbsd_collect_gregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *gregs, size_t len)
{
size_t regsize = mips_abi_regsize (regcache->arch ());
gdb_assert (len >= MIPS_FBSD_NUM_GREGS * regsize);
mips_fbsd_collect_gregs (regcache, regnum, gregs, regsize);
}
/* FreeBSD/mips register sets. */
static const struct regset mips_fbsd_gregset =
{
NULL,
mips_fbsd_supply_gregset,
mips_fbsd_collect_gregset,
};
static const struct regset mips_fbsd_fpregset =
{
NULL,
mips_fbsd_supply_fpregset,
mips_fbsd_collect_fpregset,
};
/* Iterate over core file register note sections. */
static void
mips_fbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
size_t regsize = mips_abi_regsize (gdbarch);
cb (".reg", MIPS_FBSD_NUM_GREGS * regsize, MIPS_FBSD_NUM_GREGS * regsize,
&mips_fbsd_gregset, NULL, cb_data);
cb (".reg2", MIPS_FBSD_NUM_FPREGS * regsize, MIPS_FBSD_NUM_FPREGS * regsize,
&mips_fbsd_fpregset, NULL, cb_data);
}
/* Signal trampoline support. */
#define FBSD_SYS_sigreturn 417
#define MIPS_INST_LI_V0_SIGRETURN 0x24020000 + FBSD_SYS_sigreturn
#define MIPS_INST_SYSCALL 0x0000000c
#define MIPS_INST_BREAK 0x0000000d
#define O32_SIGFRAME_UCONTEXT_OFFSET (16)
#define O32_SIGSET_T_SIZE (16)
#define O32_UCONTEXT_ONSTACK (O32_SIGSET_T_SIZE)
#define O32_UCONTEXT_PC (O32_UCONTEXT_ONSTACK + 4)
#define O32_UCONTEXT_REGS (O32_UCONTEXT_PC + 4)
#define O32_UCONTEXT_SR (O32_UCONTEXT_REGS + 4 * 32)
#define O32_UCONTEXT_LO (O32_UCONTEXT_SR + 4)
#define O32_UCONTEXT_HI (O32_UCONTEXT_LO + 4)
#define O32_UCONTEXT_FPUSED (O32_UCONTEXT_HI + 4)
#define O32_UCONTEXT_FPREGS (O32_UCONTEXT_FPUSED + 4)
#define O32_UCONTEXT_REG_SIZE 4
static void
mips_fbsd_sigframe_init (const struct tramp_frame *self,
struct frame_info *this_frame,
struct trad_frame_cache *cache,
CORE_ADDR func)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR sp, ucontext_addr, addr;
int regnum;
gdb_byte buf[4];
/* We find the appropriate instance of `ucontext_t' at a
fixed offset in the signal frame. */
sp = get_frame_register_signed (this_frame,
MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));
ucontext_addr = sp + O32_SIGFRAME_UCONTEXT_OFFSET;
/* PC. */
regnum = mips_regnum (gdbarch)->pc;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + O32_UCONTEXT_PC);
/* GPRs. */
for (regnum = MIPS_ZERO_REGNUM, addr = ucontext_addr + O32_UCONTEXT_REGS;
regnum <= MIPS_RA_REGNUM; regnum++, addr += O32_UCONTEXT_REG_SIZE)
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
addr);
regnum = MIPS_PS_REGNUM;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + O32_UCONTEXT_SR);
/* HI and LO. */
regnum = mips_regnum (gdbarch)->lo;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + O32_UCONTEXT_LO);
regnum = mips_regnum (gdbarch)->hi;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + O32_UCONTEXT_HI);
if (target_read_memory (ucontext_addr + O32_UCONTEXT_FPUSED, buf, 4) == 0
&& extract_unsigned_integer (buf, 4, byte_order) != 0)
{
for (regnum = 0, addr = ucontext_addr + O32_UCONTEXT_FPREGS;
regnum < 32; regnum++, addr += O32_UCONTEXT_REG_SIZE)
trad_frame_set_reg_addr (cache,
regnum + gdbarch_fp0_regnum (gdbarch),
addr);
trad_frame_set_reg_addr (cache, mips_regnum (gdbarch)->fp_control_status,
addr);
}
trad_frame_set_id (cache, frame_id_build (sp, func));
}
#define MIPS_INST_ADDIU_A0_SP_O32 (0x27a40000 \
+ O32_SIGFRAME_UCONTEXT_OFFSET)
static const struct tramp_frame mips_fbsd_sigframe =
{
SIGTRAMP_FRAME,
MIPS_INSN32_SIZE,
{
{ MIPS_INST_ADDIU_A0_SP_O32, ULONGEST_MAX }, /* addiu a0, sp, SIGF_UC */
{ MIPS_INST_LI_V0_SIGRETURN, ULONGEST_MAX }, /* li v0, SYS_sigreturn */
{ MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */
{ MIPS_INST_BREAK, ULONGEST_MAX }, /* break */
{ TRAMP_SENTINEL_INSN, ULONGEST_MAX }
},
mips_fbsd_sigframe_init
};
#define N64_SIGFRAME_UCONTEXT_OFFSET (32)
#define N64_SIGSET_T_SIZE (16)
#define N64_UCONTEXT_ONSTACK (N64_SIGSET_T_SIZE)
#define N64_UCONTEXT_PC (N64_UCONTEXT_ONSTACK + 8)
#define N64_UCONTEXT_REGS (N64_UCONTEXT_PC + 8)
#define N64_UCONTEXT_SR (N64_UCONTEXT_REGS + 8 * 32)
#define N64_UCONTEXT_LO (N64_UCONTEXT_SR + 8)
#define N64_UCONTEXT_HI (N64_UCONTEXT_LO + 8)
#define N64_UCONTEXT_FPUSED (N64_UCONTEXT_HI + 8)
#define N64_UCONTEXT_FPREGS (N64_UCONTEXT_FPUSED + 8)
#define N64_UCONTEXT_REG_SIZE 8
static void
mips64_fbsd_sigframe_init (const struct tramp_frame *self,
struct frame_info *this_frame,
struct trad_frame_cache *cache,
CORE_ADDR func)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR sp, ucontext_addr, addr;
int regnum;
gdb_byte buf[4];
/* We find the appropriate instance of `ucontext_t' at a
fixed offset in the signal frame. */
sp = get_frame_register_signed (this_frame,
MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));
ucontext_addr = sp + N64_SIGFRAME_UCONTEXT_OFFSET;
/* PC. */
regnum = mips_regnum (gdbarch)->pc;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + N64_UCONTEXT_PC);
/* GPRs. */
for (regnum = MIPS_ZERO_REGNUM, addr = ucontext_addr + N64_UCONTEXT_REGS;
regnum <= MIPS_RA_REGNUM; regnum++, addr += N64_UCONTEXT_REG_SIZE)
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
addr);
regnum = MIPS_PS_REGNUM;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + N64_UCONTEXT_SR);
/* HI and LO. */
regnum = mips_regnum (gdbarch)->lo;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + N64_UCONTEXT_LO);
regnum = mips_regnum (gdbarch)->hi;
trad_frame_set_reg_addr (cache,
regnum + gdbarch_num_regs (gdbarch),
ucontext_addr + N64_UCONTEXT_HI);
if (target_read_memory (ucontext_addr + N64_UCONTEXT_FPUSED, buf, 4) == 0
&& extract_unsigned_integer (buf, 4, byte_order) != 0)
{
for (regnum = 0, addr = ucontext_addr + N64_UCONTEXT_FPREGS;
regnum < 32; regnum++, addr += N64_UCONTEXT_REG_SIZE)
trad_frame_set_reg_addr (cache,
regnum + gdbarch_fp0_regnum (gdbarch),
addr);
trad_frame_set_reg_addr (cache, mips_regnum (gdbarch)->fp_control_status,
addr);
}
trad_frame_set_id (cache, frame_id_build (sp, func));
}
#define MIPS_INST_ADDIU_A0_SP_N32 (0x27a40000 \
+ N64_SIGFRAME_UCONTEXT_OFFSET)
static const struct tramp_frame mipsn32_fbsd_sigframe =
{
SIGTRAMP_FRAME,
MIPS_INSN32_SIZE,
{
{ MIPS_INST_ADDIU_A0_SP_N32, ULONGEST_MAX }, /* addiu a0, sp, SIGF_UC */
{ MIPS_INST_LI_V0_SIGRETURN, ULONGEST_MAX }, /* li v0, SYS_sigreturn */
{ MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */
{ MIPS_INST_BREAK, ULONGEST_MAX }, /* break */
{ TRAMP_SENTINEL_INSN, ULONGEST_MAX }
},
mips64_fbsd_sigframe_init
};
#define MIPS_INST_DADDIU_A0_SP_N64 (0x67a40000 \
+ N64_SIGFRAME_UCONTEXT_OFFSET)
static const struct tramp_frame mips64_fbsd_sigframe =
{
SIGTRAMP_FRAME,
MIPS_INSN32_SIZE,
{
{ MIPS_INST_DADDIU_A0_SP_N64, ULONGEST_MAX }, /* daddiu a0, sp, SIGF_UC */
{ MIPS_INST_LI_V0_SIGRETURN, ULONGEST_MAX }, /* li v0, SYS_sigreturn */
{ MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */
{ MIPS_INST_BREAK, ULONGEST_MAX }, /* break */
{ TRAMP_SENTINEL_INSN, ULONGEST_MAX }
},
mips64_fbsd_sigframe_init
};
/* Shared library support. */
/* FreeBSD/mips uses a slightly different `struct link_map' than the
other FreeBSD platforms as it includes an additional `l_off'
member. */
static struct link_map_offsets *
mips_fbsd_ilp32_fetch_link_map_offsets (void)
{
static struct link_map_offsets lmo;
static struct link_map_offsets *lmp = NULL;
if (lmp == NULL)
{
lmp = &lmo;
lmo.r_version_offset = 0;
lmo.r_version_size = 4;
lmo.r_map_offset = 4;
lmo.r_brk_offset = 8;
lmo.r_ldsomap_offset = -1;
lmo.link_map_size = 24;
lmo.l_addr_offset = 0;
lmo.l_name_offset = 8;
lmo.l_ld_offset = 12;
lmo.l_next_offset = 16;
lmo.l_prev_offset = 20;
}
return lmp;
}
static struct link_map_offsets *
mips_fbsd_lp64_fetch_link_map_offsets (void)
{
static struct link_map_offsets lmo;
static struct link_map_offsets *lmp = NULL;
if (lmp == NULL)
{
lmp = &lmo;
lmo.r_version_offset = 0;
lmo.r_version_size = 4;
lmo.r_map_offset = 8;
lmo.r_brk_offset = 16;
lmo.r_ldsomap_offset = -1;
lmo.link_map_size = 48;
lmo.l_addr_offset = 0;
lmo.l_name_offset = 16;
lmo.l_ld_offset = 24;
lmo.l_next_offset = 32;
lmo.l_prev_offset = 40;
}
return lmp;
}
static void
mips_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
enum mips_abi abi = mips_abi (gdbarch);
/* Generic FreeBSD support. */
fbsd_init_abi (info, gdbarch);
set_gdbarch_software_single_step (gdbarch, mips_software_single_step);
switch (abi)
{
case MIPS_ABI_O32:
tramp_frame_prepend_unwinder (gdbarch, &mips_fbsd_sigframe);
break;
case MIPS_ABI_N32:
tramp_frame_prepend_unwinder (gdbarch, &mipsn32_fbsd_sigframe);
break;
case MIPS_ABI_N64:
tramp_frame_prepend_unwinder (gdbarch, &mips64_fbsd_sigframe);
break;
}
set_gdbarch_iterate_over_regset_sections
(gdbarch, mips_fbsd_iterate_over_regset_sections);
/* FreeBSD/mips has SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, (gdbarch_ptr_bit (gdbarch) == 32 ?
mips_fbsd_ilp32_fetch_link_map_offsets :
mips_fbsd_lp64_fetch_link_map_offsets));
}
void _initialize_mips_fbsd_tdep ();
void
_initialize_mips_fbsd_tdep ()
{
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_FREEBSD,
mips_fbsd_init_abi);
}
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