481695ed5f
These prototypes were required when compiling GDB as C but are not required for C++. gdb/ChangeLog: * aarch64-linux-nat.c: Remove _initialize_aarch64_linux_nat prototype. * aarch64-linux-tdep.c: Remove _initialize_aarch64_linux_tdep prototype. * aarch64-newlib-tdep.c: Remove _initialize_aarch64_newlib_tdep prototype. * aarch64-tdep.c: Remove _initialize_aarch64_tdep prototype. * ada-exp.y: Remove _initialize_ada_exp prototype. * ada-lang.c: Remove _initialize_ada_language prototype. * ada-tasks.c: Remove _initialize_tasks prototype. * addrmap.c: Remove _initialize_addrmap prototype. * agent.c: Remove _initialize_agent prototype. * aix-thread.c: Remove _initialize_aix_thread prototype. * alpha-bsd-nat.c: Remove _initialize_alphabsd_nat prototype. * alpha-linux-nat.c: Remove _initialize_alpha_linux_nat prototype. * alpha-linux-tdep.c: Remove _initialize_alpha_linux_tdep prototype. * alpha-nbsd-tdep.c: Remove _initialize_alphanbsd_tdep prototype. * alpha-obsd-tdep.c: Remove _initialize_alphaobsd_tdep prototype. * alpha-tdep.c: Remove _initialize_alpha_tdep prototype. * amd64-darwin-tdep.c: Remove _initialize_amd64_darwin_tdep prototype. * amd64-dicos-tdep.c: Remove _initialize_amd64_dicos_tdep prototype. * amd64-fbsd-nat.c: Remove _initialize_amd64fbsd_nat prototype. * amd64-fbsd-tdep.c: Remove _initialize_amd64fbsd_tdep prototype. * amd64-linux-nat.c: Remove _initialize_amd64_linux_nat prototype. * amd64-linux-tdep.c: Remove _initialize_amd64_linux_tdep prototype. * amd64-nbsd-nat.c: Remove _initialize_amd64nbsd_nat prototype. * amd64-nbsd-tdep.c: Remove _initialize_amd64nbsd_tdep prototype. * amd64-obsd-nat.c: Remove _initialize_amd64obsd_nat prototype. * amd64-obsd-tdep.c: Remove _initialize_amd64obsd_tdep prototype. * amd64-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype. * amd64-tdep.c: Remove _initialize_amd64_tdep prototype. * amd64-windows-nat.c: Remove _initialize_amd64_windows_nat prototype. * amd64-windows-tdep.c: Remove _initialize_amd64_windows_tdep prototype. * annotate.c: Remove _initialize_annotate prototype. * arc-newlib-tdep.c: Remove _initialize_arc_newlib_tdep prototype. * arc-tdep.c: Remove _initialize_arc_tdep prototype. * arch-utils.c: Remove _initialize_gdbarch_utils prototype. * arm-linux-nat.c: Remove _initialize_arm_linux_nat prototype. * arm-linux-tdep.c: Remove _initialize_arm_linux_tdep prototype. * arm-nbsd-tdep.c: Remove _initialize_arm_netbsd_tdep prototype. * arm-obsd-tdep.c: Remove _initialize_armobsd_tdep prototype. * arm-symbian-tdep.c: Remove _initialize_arm_symbian_tdep prototype. * arm-tdep.c: Remove _initialize_arm_tdep prototype. * arm-wince-tdep.c: Remove _initialize_arm_wince_tdep prototype. * auto-load.c: Remove _initialize_auto_load prototype. * auxv.c: Remove _initialize_auxv prototype. * avr-tdep.c: Remove _initialize_avr_tdep prototype. * ax-gdb.c: Remove _initialize_ax_gdb prototype. * bfin-linux-tdep.c: Remove _initialize_bfin_linux_tdep prototype. * bfin-tdep.c: Remove _initialize_bfin_tdep prototype. * break-catch-sig.c: Remove _initialize_break_catch_sig prototype. * break-catch-syscall.c: Remove _initialize_break_catch_syscall prototype. * break-catch-throw.c: Remove _initialize_break_catch_throw prototype. * breakpoint.c: Remove _initialize_breakpoint prototype. * bsd-uthread.c: Remove _initialize_bsd_uthread prototype. * btrace.c: Remove _initialize_btrace prototype. * charset.c: Remove _initialize_charset prototype. * cli/cli-cmds.c: Remove _initialize_cli_cmds prototype. * cli/cli-dump.c: Remove _initialize_cli_dump prototype. * cli/cli-interp.c: Remove _initialize_cli_interp prototype. * cli/cli-logging.c: Remove _initialize_cli_logging prototype. * cli/cli-script.c: Remove _initialize_cli_script prototype. * coff-pe-read.c: Remove _initialize_coff_pe_read prototype. * coffread.c: Remove _initialize_coffread prototype. * compile/compile.c: Remove _initialize_compile prototype. * complaints.c: Remove _initialize_complaints prototype. * completer.c: Remove _initialize_completer prototype. * copying.awk: Remove _initialize_copying prototype. * copying.c: Regenerate. * core-regset.c: Remove _initialize_core_regset prototype. * corefile.c: Remove _initialize_core prototype. * corelow.c: Remove _initialize_corelow prototype. * cp-abi.c: Remove _initialize_cp_abi prototype. * cp-namespace.c: Remove _initialize_cp_namespace prototype. * cp-support.c: Remove _initialize_cp_support prototype. * cp-valprint.c: Remove _initialize_cp_valprint prototype. * cris-linux-tdep.c: Remove _initialize_cris_linux_tdep prototype. * cris-tdep.c: Remove _initialize_cris_tdep prototype. * ctf.c: Remove _initialize_ctf prototype. * d-lang.c: Remove _initialize_d_language prototype. * darwin-nat-info.c: Remove _initialize_darwin_info_commands prototype. * darwin-nat.c: Remove _initialize_darwin_inferior prototype. * dbxread.c: Remove _initialize_dbxread prototype. * dcache.c: Remove _initialize_dcache prototype. * demangle.c: Remove _initialize_demangler prototype. * disasm-selftests.c: Remove _initialize_disasm_selftests prototype. * disasm.c: Remove _initialize_disasm prototype. * dtrace-probe.c: Remove _initialize_dtrace_probe prototype. * dummy-frame.c: Remove _initialize_dummy_frame prototype. * dwarf2-frame-tailcall.c: Remove _initialize_tailcall_frame prototype. * dwarf2-frame.c: Remove _initialize_dwarf2_frame prototype. * dwarf2expr.c: Remove _initialize_dwarf2expr prototype. * dwarf2loc.c: Remove _initialize_dwarf2loc prototype. * dwarf2read.c: Remove _initialize_dwarf2_read prototype. * elfread.c: Remove _initialize_elfread prototype. * exec.c: Remove _initialize_exec prototype. * extension.c: Remove _initialize_extension prototype. * f-lang.c: Remove _initialize_f_language prototype. * f-valprint.c: Remove _initialize_f_valprint prototype. * fbsd-nat.c: Remove _initialize_fbsd_nat prototype. * fbsd-tdep.c: Remove _initialize_fbsd_tdep prototype. * filesystem.c: Remove _initialize_filesystem prototype. * findcmd.c: Remove _initialize_mem_search prototype. * fork-child.c: Remove _initialize_fork_child prototype. * frame-base.c: Remove _initialize_frame_base prototype. * frame-unwind.c: Remove _initialize_frame_unwind prototype. * frame.c: Remove _initialize_frame prototype. * frv-linux-tdep.c: Remove _initialize_frv_linux_tdep prototype. * frv-tdep.c: Remove _initialize_frv_tdep prototype. * ft32-tdep.c: Remove _initialize_ft32_tdep prototype. * gcore.c: Remove _initialize_gcore prototype. * gdb_bfd.c: Remove _initialize_gdb_bfd prototype. * gdbarch.c: Regenerate. * gdbarch.sh: Remove _initialize_gdbarch prototype. * gdbtypes.c: Remove _initialize_gdbtypes prototype. * gnu-nat.c: Remove _initialize_gnu_nat prototype. * gnu-v2-abi.c: Remove _initialize_gnu_v2_abi prototype. * gnu-v3-abi.c: Remove _initialize_gnu_v3_abi prototype. * go-lang.c: Remove _initialize_go_language prototype. * go32-nat.c: Remove _initialize_go32_nat prototype. * guile/guile.c: Remove _initialize_guile prototype. * h8300-tdep.c: Remove _initialize_h8300_tdep prototype. * hppa-linux-nat.c: Remove _initialize_hppa_linux_nat prototype. * hppa-linux-tdep.c: Remove _initialize_hppa_linux_tdep prototype. * hppa-nbsd-nat.c: Remove _initialize_hppanbsd_nat prototype. * hppa-nbsd-tdep.c: Remove _initialize_hppanbsd_tdep prototype. * hppa-obsd-nat.c: Remove _initialize_hppaobsd_nat prototype. * hppa-obsd-tdep.c: Remove _initialize_hppaobsd_tdep prototype. * hppa-tdep.c: Remove _initialize_hppa_tdep prototype. * i386-bsd-nat.c: Remove _initialize_i386bsd_nat prototype. * i386-cygwin-tdep.c: Remove _initialize_i386_cygwin_tdep prototype. * i386-darwin-tdep.c: Remove _initialize_i386_darwin_tdep prototype. * i386-dicos-tdep.c: Remove _initialize_i386_dicos_tdep prototype. * i386-fbsd-nat.c: Remove _initialize_i386fbsd_nat prototype. * i386-fbsd-tdep.c: Remove _initialize_i386fbsd_tdep prototype. * i386-gnu-nat.c: Remove _initialize_i386gnu_nat prototype. * i386-gnu-tdep.c: Remove _initialize_i386gnu_tdep prototype. * i386-linux-nat.c: Remove _initialize_i386_linux_nat prototype. * i386-linux-tdep.c: Remove _initialize_i386_linux_tdep prototype. * i386-nbsd-nat.c: Remove _initialize_i386nbsd_nat prototype. * i386-nbsd-tdep.c: Remove _initialize_i386nbsd_tdep prototype. * i386-nto-tdep.c: Remove _initialize_i386nto_tdep prototype. * i386-obsd-nat.c: Remove _initialize_i386obsd_nat prototype. * i386-obsd-tdep.c: Remove _initialize_i386obsd_tdep prototype. * i386-sol2-nat.c: Remove _initialize_amd64_sol2_nat prototype. * i386-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype. * i386-tdep.c: Remove _initialize_i386_tdep prototype. * i386-windows-nat.c: Remove _initialize_i386_windows_nat prototype. * ia64-libunwind-tdep.c: Remove _initialize_libunwind_frame prototype. * ia64-linux-nat.c: Remove _initialize_ia64_linux_nat prototype. * ia64-linux-tdep.c: Remove _initialize_ia64_linux_tdep prototype. * ia64-tdep.c: Remove _initialize_ia64_tdep prototype. * ia64-vms-tdep.c: Remove _initialize_ia64_vms_tdep prototype. * infcall.c: Remove _initialize_infcall prototype. * infcmd.c: Remove _initialize_infcmd prototype. * inferior.c: Remove _initialize_inferiors prototype. * inflow.c: Remove _initialize_inflow prototype. * infrun.c: Remove _initialize_infrun prototype. * interps.c: Remove _initialize_interpreter prototype. * iq2000-tdep.c: Remove _initialize_iq2000_tdep prototype. * jit.c: Remove _initialize_jit prototype. * language.c: Remove _initialize_language prototype. * linux-fork.c: Remove _initialize_linux_fork prototype. * linux-nat.c: Remove _initialize_linux_nat prototype. * linux-tdep.c: Remove _initialize_linux_tdep prototype. * linux-thread-db.c: Remove _initialize_thread_db prototype. * lm32-tdep.c: Remove _initialize_lm32_tdep prototype. * m2-lang.c: Remove _initialize_m2_language prototype. * m32c-tdep.c: Remove _initialize_m32c_tdep prototype. * m32r-linux-nat.c: Remove _initialize_m32r_linux_nat prototype. * m32r-linux-tdep.c: Remove _initialize_m32r_linux_tdep prototype. * m32r-tdep.c: Remove _initialize_m32r_tdep prototype. * m68hc11-tdep.c: Remove _initialize_m68hc11_tdep prototype. * m68k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype. * m68k-bsd-tdep.c: Remove _initialize_m68kbsd_tdep prototype. * m68k-linux-nat.c: Remove _initialize_m68k_linux_tdep prototype. * m68k-linux-tdep.c: Remove _initialize_m68k_linux_tdep prototype. * m68k-tdep.c: Remove _initialize_m68k_tdep prototype. * m88k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype. * m88k-tdep.c: Remove _initialize_m68kbsd_tdep prototype. * machoread.c: Remove _initialize_machoread prototype. * macrocmd.c: Remove _initialize_macrocmd prototype. * macroscope.c: Remove _initialize_macroscope prototype. * maint.c: Remove _initialize_maint_cmds prototype. * mdebugread.c: Remove _initialize_mdebugread prototype. * memattr.c: Remove _initialize_mem prototype. * mep-tdep.c: Remove _initialize_mep_tdep prototype. * mi/mi-cmd-env.c: Remove _initialize_mi_cmd_env prototype. * mi/mi-cmds.c: Remove _initialize_mi_cmds prototype. * mi/mi-interp.c: Remove _initialize_mi_interp prototype. * mi/mi-main.c: Remove _initialize_mi_main prototype. * microblaze-linux-tdep.c: Remove _initialize_microblaze_linux_tdep prototype. * microblaze-tdep.c: Remove _initialize_microblaze_tdep prototype. * mips-fbsd-nat.c: Remove _initialize_mips_fbsd_nat prototype. * mips-fbsd-tdep.c: Remove _initialize_mips_fbsd_tdep prototype. * mips-linux-nat.c: Remove _initialize_mips_linux_nat prototype. * mips-linux-tdep.c: Remove _initialize_mips_linux_tdep prototype. * mips-nbsd-nat.c: Remove _initialize_mipsnbsd_nat prototype. * mips-nbsd-tdep.c: Remove _initialize_mipsnbsd_tdep prototype. * mips-sde-tdep.c: Remove _initialize_mips_sde_tdep prototype. * mips-tdep.c: Remove _initialize_mips_tdep prototype. * mips64-obsd-nat.c: Remove _initialize_mips64obsd_nat prototype. * mips64-obsd-tdep.c: Remove _initialize_mips64obsd_tdep prototype. * mipsread.c: Remove _initialize_mipsread prototype. * mn10300-linux-tdep.c: Remove _initialize_mn10300_linux_tdep prototype. * mn10300-tdep.c: Remove _initialize_mn10300_tdep prototype. * moxie-tdep.c: Remove _initialize_moxie_tdep prototype. * msp430-tdep.c: Remove _initialize_msp430_tdep prototype. * mt-tdep.c: Remove _initialize_mt_tdep prototype. * nds32-tdep.c: Remove _initialize_nds32_tdep prototype. * nios2-linux-tdep.c: Remove _initialize_nios2_linux_tdep prototype. * nios2-tdep.c: Remove _initialize_nios2_tdep prototype. * nto-procfs.c: Remove _initialize_procfs prototype. * nto-tdep.c: Remove _initialize_nto_tdep prototype. * objc-lang.c: Remove _initialize_objc_language prototype. * objfiles.c: Remove _initialize_objfiles prototype. * observer.c: Remove observer_test_first_notification_function, observer_test_second_notification_function, observer_test_third_notification_function, and _initialize_observer prototypes. * opencl-lang.c: Remove _initialize_opencl_language prototypes. * osabi.c: Remove _initialize_gdb_osabi prototype. * osdata.c: Remove _initialize_osdata prototype. * p-valprint.c: Remove _initialize_pascal_valprint prototype. * parse.c: Remove _initialize_parse prototype. * ppc-fbsd-nat.c: Remove _initialize_ppcfbsd_nat prototype. * ppc-fbsd-tdep.c: Remove _initialize_ppcfbsd_tdep prototype. * ppc-linux-nat.c: Remove _initialize_ppc_linux_nat prototype. * ppc-linux-tdep.c: Remove _initialize_ppc_linux_tdep prototype. * ppc-nbsd-nat.c: Remove _initialize_ppcnbsd_nat prototype. * ppc-nbsd-tdep.c: Remove _initialize_ppcnbsd_tdep prototype. * ppc-obsd-nat.c: Remove _initialize_ppcobsd_nat prototype. * ppc-obsd-tdep.c: Remove _initialize_ppcobsd_tdep prototype. * printcmd.c: Remove _initialize_printcmd prototype. * probe.c: Remove _initialize_probe prototype. * proc-api.c: Remove _initialize_proc_api prototype. * proc-events.c: Remove _initialize_proc_events prototype. * proc-service.c: Remove _initialize_proc_service prototype. * procfs.c: Remove _initialize_procfs prototype. * psymtab.c: Remove _initialize_psymtab prototype. * python/python.c: Remove _initialize_python prototype. * ravenscar-thread.c: Remove _initialize_ravenscar prototype. * record-btrace.c: Remove _initialize_record_btrace prototype. * record-full.c: Remove _initialize_record_full prototype. * record.c: Remove _initialize_record prototype. * regcache.c: Remove _initialize_regcache prototype. * reggroups.c: Remove _initialize_reggroup prototype. * remote-notif.c: Remove _initialize_notif prototype. * remote-sim.c: Remove _initialize_remote_sim prototype. * remote.c: Remove _initialize_remote prototype. * reverse.c: Remove _initialize_reverse prototype. * rl78-tdep.c: Remove _initialize_rl78_tdep prototype. * rs6000-aix-tdep.c: Remove _initialize_rs6000_aix_tdep prototype. * rs6000-lynx178-tdep.c: Remove _initialize_rs6000_lynx178_tdep prototype. * rs6000-nat.c: Remove _initialize_rs6000_nat prototype. * rs6000-tdep.c: Remove _initialize_rs6000_tdep prototype. * rust-exp.y: Remove _initialize_rust_exp prototype. * rx-tdep.c: Remove _initialize_rx_tdep prototype. * s390-linux-nat.c: Remove _initialize_s390_nat prototype. * s390-linux-tdep.c: Remove _initialize_s390_tdep prototype. * score-tdep.c: Remove _initialize_score_tdep prototype. * selftest-arch.c: Remove _initialize_selftests_foreach_arch prototype. * ser-go32.c: Remove _initialize_ser_dos prototype. * ser-mingw.c: Remove _initialize_ser_windows prototype. * ser-pipe.c: Remove _initialize_ser_pipe prototype. * ser-tcp.c: Remove _initialize_ser_tcp prototype. * ser-unix.c: Remove _initialize_ser_hardwire prototype. * serial.c: Remove _initialize_serial prototype. * sh-linux-tdep.c: Remove _initialize_sh_linux_tdep prototype. * sh-nbsd-nat.c: Remove _initialize_shnbsd_nat prototype. * sh-nbsd-tdep.c: Remove _initialize_shnbsd_tdep prototype. * sh-tdep.c: Remove _initialize_sh_tdep prototype. * skip.c: Remove _initialize_step_skip prototype. * sol-thread.c: Remove _initialize_sol_thread prototype. * solib-aix.c: Remove _initialize_solib_aix prototype. * solib-darwin.c: Remove _initialize_darwin_solib prototype. * solib-dsbt.c: Remove _initialize_dsbt_solib prototype. * solib-frv.c: Remove _initialize_frv_solib prototype. * solib-spu.c: Remove _initialize_spu_solib prototype. * solib-svr4.c: Remove _initialize_svr4_solib prototype. * solib-target.c: Remove _initialize_solib_target prototype. * solib.c: Remove _initialize_solib prototype. * source.c: Remove _initialize_source prototype. * sparc-linux-nat.c: Remove _initialize_sparc_linux_nat prototype. * sparc-linux-tdep.c: Remove _initialize_sparc_linux_tdep prototype. * sparc-nat.c: Remove _initialize_sparc_nat prototype. * sparc-nbsd-nat.c: Remove _initialize_sparcnbsd_nat prototype. * sparc-nbsd-tdep.c: Remove _initialize_sparcnbsd_tdep prototype. * sparc-obsd-tdep.c: Remove _initialize_sparc32obsd_tdep prototype. * sparc-sol2-nat.c: Remove _initialize_sparc_sol2_nat prototype. * sparc-sol2-tdep.c: Remove _initialize_sparc_sol2_tdep prototype. * sparc-tdep.c: Remove _initialize_sparc_tdep prototype. * sparc64-fbsd-nat.c: Remove _initialize_sparc64fbsd_nat prototype. * sparc64-fbsd-tdep.c: Remove _initialize_sparc64fbsd_tdep prototype. * sparc64-linux-nat.c: Remove _initialize_sparc64_linux_nat prototype. * sparc64-linux-tdep.c: Remove _initialize_sparc64_linux_tdep prototype. * sparc64-nat.c: Remove _initialize_sparc64_nat prototype. * sparc64-nbsd-nat.c: Remove _initialize_sparc64nbsd_nat prototype. * sparc64-nbsd-tdep.c: Remove _initialize_sparc64nbsd_tdep prototype. * sparc64-obsd-nat.c: Remove _initialize_sparc64obsd_nat prototype. * sparc64-obsd-tdep.c: Remove _initialize_sparc64obsd_tdep prototype. * sparc64-sol2-tdep.c: Remove _initialize_sparc64_sol2_tdep prototype. * spu-linux-nat.c: Remove _initialize_spu_nat prototype. * spu-multiarch.c: Remove _initialize_spu_multiarch prototype. * spu-tdep.c: Remove _initialize_spu_tdep prototype. * stabsread.c: Remove _initialize_stabsread prototype. * stack.c: Remove _initialize_stack prototype. * stap-probe.c: Remove _initialize_stap_probe prototype. * std-regs.c: Remove _initialize_frame_reg prototype. * symfile-debug.c: Remove _initialize_symfile_debug prototype. * symfile-mem.c: Remove _initialize_symfile_mem prototype. * symfile.c: Remove _initialize_symfile prototype. * symmisc.c: Remove _initialize_symmisc prototype. * symtab.c: Remove _initialize_symtab prototype. * target-dcache.c: Remove _initialize_target_dcache prototype. * target-descriptions.c: Remove _initialize_target_descriptions prototype. * thread.c: Remove _initialize_thread prototype. * tic6x-linux-tdep.c: Remove _initialize_tic6x_linux_tdep prototype. * tic6x-tdep.c: Remove _initialize_tic6x_tdep prototype. * tilegx-linux-nat.c: Remove _initialize_tile_linux_nat prototype. * tilegx-linux-tdep.c: Remove _initialize_tilegx_linux_tdep prototype. * tilegx-tdep.c: Remove _initialize_tilegx_tdep prototype. * tracefile-tfile.c: Remove _initialize_tracefile_tfile prototype. * tracefile.c: Remove _initialize_tracefile prototype. * tracepoint.c: Remove _initialize_tracepoint prototype. * tui/tui-hooks.c: Remove _initialize_tui_hooks prototype. * tui/tui-interp.c: Remove _initialize_tui_interp prototype. * tui/tui-layout.c: Remove _initialize_tui_layout prototype. * tui/tui-regs.c: Remove _initialize_tui_regs prototype. * tui/tui-stack.c: Remove _initialize_tui_stack prototype. * tui/tui-win.c: Remove _initialize_tui_win prototype. * tui/tui.c: Remove _initialize_tui prototype. * typeprint.c: Remove _initialize_typeprint prototype. * user-regs.c: Remove _initialize_user_regs prototype. * utils.c: Remove _initialize_utils prototype. * v850-tdep.c: Remove _initialize_v850_tdep prototype. * valarith.c: Remove _initialize_valarith prototype. * valops.c: Remove _initialize_valops prototype. * valprint.c: Remove _initialize_valprint prototype. * value.c: Remove _initialize_values prototype. * varobj.c: Remove _initialize_varobj prototype. * vax-bsd-nat.c: Remove _initialize_vaxbsd_nat prototype. * vax-nbsd-tdep.c: Remove _initialize_vaxnbsd_tdep prototype. * vax-tdep.c: Remove _initialize_vax_tdep prototype. * windows-nat.c: Remove _initialize_windows_nat, _initialize_check_for_gdb_ini, and _initialize_loadable prototypes. * windows-tdep.c: Remove _initialize_windows_tdep prototype. * xcoffread.c: Remove _initialize_xcoffread prototype. * xml-support.c: Remove _initialize_xml_support prototype. * xstormy16-tdep.c: Remove _initialize_xstormy16_tdep prototype. * xtensa-linux-nat.c: Remove _initialize_xtensa_linux_nat prototype. * xtensa-linux-tdep.c: Remove _initialize_xtensa_linux_tdep prototype. * xtensa-tdep.c: Remove _initialize_xtensa_tdep prototype.
1178 lines
35 KiB
C
1178 lines
35 KiB
C
/* Handle FR-V (FDPIC) shared libraries for GDB, the GNU Debugger.
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Copyright (C) 2004-2017 Free Software Foundation, Inc.
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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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#include "defs.h"
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#include "inferior.h"
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#include "gdbcore.h"
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#include "solib.h"
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#include "solist.h"
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#include "frv-tdep.h"
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#include "objfiles.h"
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#include "symtab.h"
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#include "language.h"
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#include "command.h"
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#include "gdbcmd.h"
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#include "elf/frv.h"
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#include "gdb_bfd.h"
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/* Flag which indicates whether internal debug messages should be printed. */
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static unsigned int solib_frv_debug;
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/* FR-V pointers are four bytes wide. */
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enum { FRV_PTR_SIZE = 4 };
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/* Representation of loadmap and related structs for the FR-V FDPIC ABI. */
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/* External versions; the size and alignment of the fields should be
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the same as those on the target. When loaded, the placement of
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the bits in each field will be the same as on the target. */
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typedef gdb_byte ext_Elf32_Half[2];
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typedef gdb_byte ext_Elf32_Addr[4];
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typedef gdb_byte ext_Elf32_Word[4];
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struct ext_elf32_fdpic_loadseg
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{
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/* Core address to which the segment is mapped. */
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ext_Elf32_Addr addr;
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/* VMA recorded in the program header. */
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ext_Elf32_Addr p_vaddr;
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/* Size of this segment in memory. */
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ext_Elf32_Word p_memsz;
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};
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struct ext_elf32_fdpic_loadmap {
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/* Protocol version number, must be zero. */
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ext_Elf32_Half version;
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/* Number of segments in this map. */
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ext_Elf32_Half nsegs;
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/* The actual memory map. */
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struct ext_elf32_fdpic_loadseg segs[1 /* nsegs, actually */];
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};
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/* Internal versions; the types are GDB types and the data in each
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of the fields is (or will be) decoded from the external struct
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for ease of consumption. */
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struct int_elf32_fdpic_loadseg
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{
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/* Core address to which the segment is mapped. */
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CORE_ADDR addr;
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/* VMA recorded in the program header. */
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CORE_ADDR p_vaddr;
|
|
/* Size of this segment in memory. */
|
|
long p_memsz;
|
|
};
|
|
|
|
struct int_elf32_fdpic_loadmap {
|
|
/* Protocol version number, must be zero. */
|
|
int version;
|
|
/* Number of segments in this map. */
|
|
int nsegs;
|
|
/* The actual memory map. */
|
|
struct int_elf32_fdpic_loadseg segs[1 /* nsegs, actually */];
|
|
};
|
|
|
|
/* Given address LDMADDR, fetch and decode the loadmap at that address.
|
|
Return NULL if there is a problem reading the target memory or if
|
|
there doesn't appear to be a loadmap at the given address. The
|
|
allocated space (representing the loadmap) returned by this
|
|
function may be freed via a single call to xfree(). */
|
|
|
|
static struct int_elf32_fdpic_loadmap *
|
|
fetch_loadmap (CORE_ADDR ldmaddr)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
|
|
struct ext_elf32_fdpic_loadmap ext_ldmbuf_partial;
|
|
struct ext_elf32_fdpic_loadmap *ext_ldmbuf;
|
|
struct int_elf32_fdpic_loadmap *int_ldmbuf;
|
|
int ext_ldmbuf_size, int_ldmbuf_size;
|
|
int version, seg, nsegs;
|
|
|
|
/* Fetch initial portion of the loadmap. */
|
|
if (target_read_memory (ldmaddr, (gdb_byte *) &ext_ldmbuf_partial,
|
|
sizeof ext_ldmbuf_partial))
|
|
{
|
|
/* Problem reading the target's memory. */
|
|
return NULL;
|
|
}
|
|
|
|
/* Extract the version. */
|
|
version = extract_unsigned_integer (ext_ldmbuf_partial.version,
|
|
sizeof ext_ldmbuf_partial.version,
|
|
byte_order);
|
|
if (version != 0)
|
|
{
|
|
/* We only handle version 0. */
|
|
return NULL;
|
|
}
|
|
|
|
/* Extract the number of segments. */
|
|
nsegs = extract_unsigned_integer (ext_ldmbuf_partial.nsegs,
|
|
sizeof ext_ldmbuf_partial.nsegs,
|
|
byte_order);
|
|
|
|
if (nsegs <= 0)
|
|
return NULL;
|
|
|
|
/* Allocate space for the complete (external) loadmap. */
|
|
ext_ldmbuf_size = sizeof (struct ext_elf32_fdpic_loadmap)
|
|
+ (nsegs - 1) * sizeof (struct ext_elf32_fdpic_loadseg);
|
|
ext_ldmbuf = (struct ext_elf32_fdpic_loadmap *) xmalloc (ext_ldmbuf_size);
|
|
|
|
/* Copy over the portion of the loadmap that's already been read. */
|
|
memcpy (ext_ldmbuf, &ext_ldmbuf_partial, sizeof ext_ldmbuf_partial);
|
|
|
|
/* Read the rest of the loadmap from the target. */
|
|
if (target_read_memory (ldmaddr + sizeof ext_ldmbuf_partial,
|
|
(gdb_byte *) ext_ldmbuf + sizeof ext_ldmbuf_partial,
|
|
ext_ldmbuf_size - sizeof ext_ldmbuf_partial))
|
|
{
|
|
/* Couldn't read rest of the loadmap. */
|
|
xfree (ext_ldmbuf);
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocate space into which to put information extract from the
|
|
external loadsegs. I.e, allocate the internal loadsegs. */
|
|
int_ldmbuf_size = sizeof (struct int_elf32_fdpic_loadmap)
|
|
+ (nsegs - 1) * sizeof (struct int_elf32_fdpic_loadseg);
|
|
int_ldmbuf = (struct int_elf32_fdpic_loadmap *) xmalloc (int_ldmbuf_size);
|
|
|
|
/* Place extracted information in internal structs. */
|
|
int_ldmbuf->version = version;
|
|
int_ldmbuf->nsegs = nsegs;
|
|
for (seg = 0; seg < nsegs; seg++)
|
|
{
|
|
int_ldmbuf->segs[seg].addr
|
|
= extract_unsigned_integer (ext_ldmbuf->segs[seg].addr,
|
|
sizeof (ext_ldmbuf->segs[seg].addr),
|
|
byte_order);
|
|
int_ldmbuf->segs[seg].p_vaddr
|
|
= extract_unsigned_integer (ext_ldmbuf->segs[seg].p_vaddr,
|
|
sizeof (ext_ldmbuf->segs[seg].p_vaddr),
|
|
byte_order);
|
|
int_ldmbuf->segs[seg].p_memsz
|
|
= extract_unsigned_integer (ext_ldmbuf->segs[seg].p_memsz,
|
|
sizeof (ext_ldmbuf->segs[seg].p_memsz),
|
|
byte_order);
|
|
}
|
|
|
|
xfree (ext_ldmbuf);
|
|
return int_ldmbuf;
|
|
}
|
|
|
|
/* External link_map and elf32_fdpic_loadaddr struct definitions. */
|
|
|
|
typedef gdb_byte ext_ptr[4];
|
|
|
|
struct ext_elf32_fdpic_loadaddr
|
|
{
|
|
ext_ptr map; /* struct elf32_fdpic_loadmap *map; */
|
|
ext_ptr got_value; /* void *got_value; */
|
|
};
|
|
|
|
struct ext_link_map
|
|
{
|
|
struct ext_elf32_fdpic_loadaddr l_addr;
|
|
|
|
/* Absolute file name object was found in. */
|
|
ext_ptr l_name; /* char *l_name; */
|
|
|
|
/* Dynamic section of the shared object. */
|
|
ext_ptr l_ld; /* ElfW(Dyn) *l_ld; */
|
|
|
|
/* Chain of loaded objects. */
|
|
ext_ptr l_next, l_prev; /* struct link_map *l_next, *l_prev; */
|
|
};
|
|
|
|
/* Link map info to include in an allocated so_list entry. */
|
|
|
|
struct lm_info_frv : public lm_info_base
|
|
{
|
|
~lm_info_frv ()
|
|
{
|
|
xfree (this->map);
|
|
xfree (this->dyn_syms);
|
|
xfree (this->dyn_relocs);
|
|
}
|
|
|
|
/* The loadmap, digested into an easier to use form. */
|
|
int_elf32_fdpic_loadmap *map = NULL;
|
|
/* The GOT address for this link map entry. */
|
|
CORE_ADDR got_value = 0;
|
|
/* The link map address, needed for frv_fetch_objfile_link_map(). */
|
|
CORE_ADDR lm_addr = 0;
|
|
|
|
/* Cached dynamic symbol table and dynamic relocs initialized and
|
|
used only by find_canonical_descriptor_in_load_object().
|
|
|
|
Note: kevinb/2004-02-26: It appears that calls to
|
|
bfd_canonicalize_dynamic_reloc() will use the same symbols as
|
|
those supplied to the first call to this function. Therefore,
|
|
it's important to NOT free the asymbol ** data structure
|
|
supplied to the first call. Thus the caching of the dynamic
|
|
symbols (dyn_syms) is critical for correct operation. The
|
|
caching of the dynamic relocations could be dispensed with. */
|
|
asymbol **dyn_syms = NULL;
|
|
arelent **dyn_relocs = NULL;
|
|
int dyn_reloc_count = 0; /* Number of dynamic relocs. */
|
|
};
|
|
|
|
/* The load map, got value, etc. are not available from the chain
|
|
of loaded shared objects. ``main_executable_lm_info'' provides
|
|
a way to get at this information so that it doesn't need to be
|
|
frequently recomputed. Initialized by frv_relocate_main_executable(). */
|
|
static lm_info_frv *main_executable_lm_info;
|
|
|
|
static void frv_relocate_main_executable (void);
|
|
static CORE_ADDR main_got (void);
|
|
static int enable_break2 (void);
|
|
|
|
/* Implement the "open_symbol_file_object" target_so_ops method. */
|
|
|
|
static int
|
|
open_symbol_file_object (void *from_ttyp)
|
|
{
|
|
/* Unimplemented. */
|
|
return 0;
|
|
}
|
|
|
|
/* Cached value for lm_base(), below. */
|
|
static CORE_ADDR lm_base_cache = 0;
|
|
|
|
/* Link map address for main module. */
|
|
static CORE_ADDR main_lm_addr = 0;
|
|
|
|
/* Return the address from which the link map chain may be found. On
|
|
the FR-V, this may be found in a number of ways. Assuming that the
|
|
main executable has already been relocated, the easiest way to find
|
|
this value is to look up the address of _GLOBAL_OFFSET_TABLE_. A
|
|
pointer to the start of the link map will be located at the word found
|
|
at _GLOBAL_OFFSET_TABLE_ + 8. (This is part of the dynamic linker
|
|
reserve area mandated by the ABI.) */
|
|
|
|
static CORE_ADDR
|
|
lm_base (void)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
|
|
struct bound_minimal_symbol got_sym;
|
|
CORE_ADDR addr;
|
|
gdb_byte buf[FRV_PTR_SIZE];
|
|
|
|
/* One of our assumptions is that the main executable has been relocated.
|
|
Bail out if this has not happened. (Note that post_create_inferior()
|
|
in infcmd.c will call solib_add prior to solib_create_inferior_hook().
|
|
If we allow this to happen, lm_base_cache will be initialized with
|
|
a bogus value. */
|
|
if (main_executable_lm_info == 0)
|
|
return 0;
|
|
|
|
/* If we already have a cached value, return it. */
|
|
if (lm_base_cache)
|
|
return lm_base_cache;
|
|
|
|
got_sym = lookup_minimal_symbol ("_GLOBAL_OFFSET_TABLE_", NULL,
|
|
symfile_objfile);
|
|
if (got_sym.minsym == 0)
|
|
{
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"lm_base: _GLOBAL_OFFSET_TABLE_ not found.\n");
|
|
return 0;
|
|
}
|
|
|
|
addr = BMSYMBOL_VALUE_ADDRESS (got_sym) + 8;
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"lm_base: _GLOBAL_OFFSET_TABLE_ + 8 = %s\n",
|
|
hex_string_custom (addr, 8));
|
|
|
|
if (target_read_memory (addr, buf, sizeof buf) != 0)
|
|
return 0;
|
|
lm_base_cache = extract_unsigned_integer (buf, sizeof buf, byte_order);
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"lm_base: lm_base_cache = %s\n",
|
|
hex_string_custom (lm_base_cache, 8));
|
|
|
|
return lm_base_cache;
|
|
}
|
|
|
|
|
|
/* Implement the "current_sos" target_so_ops method. */
|
|
|
|
static struct so_list *
|
|
frv_current_sos (void)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
|
|
CORE_ADDR lm_addr, mgot;
|
|
struct so_list *sos_head = NULL;
|
|
struct so_list **sos_next_ptr = &sos_head;
|
|
|
|
/* Make sure that the main executable has been relocated. This is
|
|
required in order to find the address of the global offset table,
|
|
which in turn is used to find the link map info. (See lm_base()
|
|
for details.)
|
|
|
|
Note that the relocation of the main executable is also performed
|
|
by solib_create_inferior_hook(), however, in the case of core
|
|
files, this hook is called too late in order to be of benefit to
|
|
solib_add. solib_add eventually calls this this function,
|
|
frv_current_sos, and also precedes the call to
|
|
solib_create_inferior_hook(). (See post_create_inferior() in
|
|
infcmd.c.) */
|
|
if (main_executable_lm_info == 0 && core_bfd != NULL)
|
|
frv_relocate_main_executable ();
|
|
|
|
/* Fetch the GOT corresponding to the main executable. */
|
|
mgot = main_got ();
|
|
|
|
/* Locate the address of the first link map struct. */
|
|
lm_addr = lm_base ();
|
|
|
|
/* We have at least one link map entry. Fetch the lot of them,
|
|
building the solist chain. */
|
|
while (lm_addr)
|
|
{
|
|
struct ext_link_map lm_buf;
|
|
CORE_ADDR got_addr;
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"current_sos: reading link_map entry at %s\n",
|
|
hex_string_custom (lm_addr, 8));
|
|
|
|
if (target_read_memory (lm_addr, (gdb_byte *) &lm_buf,
|
|
sizeof (lm_buf)) != 0)
|
|
{
|
|
warning (_("frv_current_sos: Unable to read link map entry. "
|
|
"Shared object chain may be incomplete."));
|
|
break;
|
|
}
|
|
|
|
got_addr
|
|
= extract_unsigned_integer (lm_buf.l_addr.got_value,
|
|
sizeof (lm_buf.l_addr.got_value),
|
|
byte_order);
|
|
/* If the got_addr is the same as mgotr, then we're looking at the
|
|
entry for the main executable. By convention, we don't include
|
|
this in the list of shared objects. */
|
|
if (got_addr != mgot)
|
|
{
|
|
int errcode;
|
|
char *name_buf;
|
|
struct int_elf32_fdpic_loadmap *loadmap;
|
|
struct so_list *sop;
|
|
CORE_ADDR addr;
|
|
|
|
/* Fetch the load map address. */
|
|
addr = extract_unsigned_integer (lm_buf.l_addr.map,
|
|
sizeof lm_buf.l_addr.map,
|
|
byte_order);
|
|
loadmap = fetch_loadmap (addr);
|
|
if (loadmap == NULL)
|
|
{
|
|
warning (_("frv_current_sos: Unable to fetch load map. "
|
|
"Shared object chain may be incomplete."));
|
|
break;
|
|
}
|
|
|
|
sop = XCNEW (struct so_list);
|
|
lm_info_frv *li = new lm_info_frv;
|
|
sop->lm_info = li;
|
|
li->map = loadmap;
|
|
li->got_value = got_addr;
|
|
li->lm_addr = lm_addr;
|
|
/* Fetch the name. */
|
|
addr = extract_unsigned_integer (lm_buf.l_name,
|
|
sizeof (lm_buf.l_name),
|
|
byte_order);
|
|
target_read_string (addr, &name_buf, SO_NAME_MAX_PATH_SIZE - 1,
|
|
&errcode);
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog, "current_sos: name = %s\n",
|
|
name_buf);
|
|
|
|
if (errcode != 0)
|
|
warning (_("Can't read pathname for link map entry: %s."),
|
|
safe_strerror (errcode));
|
|
else
|
|
{
|
|
strncpy (sop->so_name, name_buf, SO_NAME_MAX_PATH_SIZE - 1);
|
|
sop->so_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0';
|
|
xfree (name_buf);
|
|
strcpy (sop->so_original_name, sop->so_name);
|
|
}
|
|
|
|
*sos_next_ptr = sop;
|
|
sos_next_ptr = &sop->next;
|
|
}
|
|
else
|
|
{
|
|
main_lm_addr = lm_addr;
|
|
}
|
|
|
|
lm_addr = extract_unsigned_integer (lm_buf.l_next,
|
|
sizeof (lm_buf.l_next), byte_order);
|
|
}
|
|
|
|
enable_break2 ();
|
|
|
|
return sos_head;
|
|
}
|
|
|
|
|
|
/* Return 1 if PC lies in the dynamic symbol resolution code of the
|
|
run time loader. */
|
|
|
|
static CORE_ADDR interp_text_sect_low;
|
|
static CORE_ADDR interp_text_sect_high;
|
|
static CORE_ADDR interp_plt_sect_low;
|
|
static CORE_ADDR interp_plt_sect_high;
|
|
|
|
static int
|
|
frv_in_dynsym_resolve_code (CORE_ADDR pc)
|
|
{
|
|
return ((pc >= interp_text_sect_low && pc < interp_text_sect_high)
|
|
|| (pc >= interp_plt_sect_low && pc < interp_plt_sect_high)
|
|
|| in_plt_section (pc));
|
|
}
|
|
|
|
/* Given a loadmap and an address, return the displacement needed
|
|
to relocate the address. */
|
|
|
|
static CORE_ADDR
|
|
displacement_from_map (struct int_elf32_fdpic_loadmap *map,
|
|
CORE_ADDR addr)
|
|
{
|
|
int seg;
|
|
|
|
for (seg = 0; seg < map->nsegs; seg++)
|
|
{
|
|
if (map->segs[seg].p_vaddr <= addr
|
|
&& addr < map->segs[seg].p_vaddr + map->segs[seg].p_memsz)
|
|
{
|
|
return map->segs[seg].addr - map->segs[seg].p_vaddr;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Print a warning about being unable to set the dynamic linker
|
|
breakpoint. */
|
|
|
|
static void
|
|
enable_break_failure_warning (void)
|
|
{
|
|
warning (_("Unable to find dynamic linker breakpoint function.\n"
|
|
"GDB will be unable to debug shared library initializers\n"
|
|
"and track explicitly loaded dynamic code."));
|
|
}
|
|
|
|
/* Helper function for gdb_bfd_lookup_symbol. */
|
|
|
|
static int
|
|
cmp_name (const asymbol *sym, const void *data)
|
|
{
|
|
return (strcmp (sym->name, (const char *) data) == 0);
|
|
}
|
|
|
|
/* Arrange for dynamic linker to hit breakpoint.
|
|
|
|
The dynamic linkers has, as part of its debugger interface, support
|
|
for arranging for the inferior to hit a breakpoint after mapping in
|
|
the shared libraries. This function enables that breakpoint.
|
|
|
|
On the FR-V, using the shared library (FDPIC) ABI, the symbol
|
|
_dl_debug_addr points to the r_debug struct which contains
|
|
a field called r_brk. r_brk is the address of the function
|
|
descriptor upon which a breakpoint must be placed. Being a
|
|
function descriptor, we must extract the entry point in order
|
|
to set the breakpoint.
|
|
|
|
Our strategy will be to get the .interp section from the
|
|
executable. This section will provide us with the name of the
|
|
interpreter. We'll open the interpreter and then look up
|
|
the address of _dl_debug_addr. We then relocate this address
|
|
using the interpreter's loadmap. Once the relocated address
|
|
is known, we fetch the value (address) corresponding to r_brk
|
|
and then use that value to fetch the entry point of the function
|
|
we're interested in. */
|
|
|
|
static int enable_break2_done = 0;
|
|
|
|
static int
|
|
enable_break2 (void)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
|
|
asection *interp_sect;
|
|
|
|
if (enable_break2_done)
|
|
return 1;
|
|
|
|
interp_text_sect_low = interp_text_sect_high = 0;
|
|
interp_plt_sect_low = interp_plt_sect_high = 0;
|
|
|
|
/* Find the .interp section; if not found, warn the user and drop
|
|
into the old breakpoint at symbol code. */
|
|
interp_sect = bfd_get_section_by_name (exec_bfd, ".interp");
|
|
if (interp_sect)
|
|
{
|
|
unsigned int interp_sect_size;
|
|
char *buf;
|
|
int status;
|
|
CORE_ADDR addr, interp_loadmap_addr;
|
|
gdb_byte addr_buf[FRV_PTR_SIZE];
|
|
struct int_elf32_fdpic_loadmap *ldm;
|
|
|
|
/* Read the contents of the .interp section into a local buffer;
|
|
the contents specify the dynamic linker this program uses. */
|
|
interp_sect_size = bfd_section_size (exec_bfd, interp_sect);
|
|
buf = (char *) alloca (interp_sect_size);
|
|
bfd_get_section_contents (exec_bfd, interp_sect,
|
|
buf, 0, interp_sect_size);
|
|
|
|
/* Now we need to figure out where the dynamic linker was
|
|
loaded so that we can load its symbols and place a breakpoint
|
|
in the dynamic linker itself.
|
|
|
|
This address is stored on the stack. However, I've been unable
|
|
to find any magic formula to find it for Solaris (appears to
|
|
be trivial on GNU/Linux). Therefore, we have to try an alternate
|
|
mechanism to find the dynamic linker's base address. */
|
|
|
|
gdb_bfd_ref_ptr tmp_bfd;
|
|
TRY
|
|
{
|
|
tmp_bfd = solib_bfd_open (buf);
|
|
}
|
|
CATCH (ex, RETURN_MASK_ALL)
|
|
{
|
|
}
|
|
END_CATCH
|
|
|
|
if (tmp_bfd == NULL)
|
|
{
|
|
enable_break_failure_warning ();
|
|
return 0;
|
|
}
|
|
|
|
status = frv_fdpic_loadmap_addresses (target_gdbarch (),
|
|
&interp_loadmap_addr, 0);
|
|
if (status < 0)
|
|
{
|
|
warning (_("Unable to determine dynamic linker loadmap address."));
|
|
enable_break_failure_warning ();
|
|
return 0;
|
|
}
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: interp_loadmap_addr = %s\n",
|
|
hex_string_custom (interp_loadmap_addr, 8));
|
|
|
|
ldm = fetch_loadmap (interp_loadmap_addr);
|
|
if (ldm == NULL)
|
|
{
|
|
warning (_("Unable to load dynamic linker loadmap at address %s."),
|
|
hex_string_custom (interp_loadmap_addr, 8));
|
|
enable_break_failure_warning ();
|
|
return 0;
|
|
}
|
|
|
|
/* Record the relocated start and end address of the dynamic linker
|
|
text and plt section for svr4_in_dynsym_resolve_code. */
|
|
interp_sect = bfd_get_section_by_name (tmp_bfd.get (), ".text");
|
|
if (interp_sect)
|
|
{
|
|
interp_text_sect_low
|
|
= bfd_section_vma (tmp_bfd.get (), interp_sect);
|
|
interp_text_sect_low
|
|
+= displacement_from_map (ldm, interp_text_sect_low);
|
|
interp_text_sect_high
|
|
= interp_text_sect_low + bfd_section_size (tmp_bfd.get (),
|
|
interp_sect);
|
|
}
|
|
interp_sect = bfd_get_section_by_name (tmp_bfd.get (), ".plt");
|
|
if (interp_sect)
|
|
{
|
|
interp_plt_sect_low =
|
|
bfd_section_vma (tmp_bfd.get (), interp_sect);
|
|
interp_plt_sect_low
|
|
+= displacement_from_map (ldm, interp_plt_sect_low);
|
|
interp_plt_sect_high =
|
|
interp_plt_sect_low + bfd_section_size (tmp_bfd.get (),
|
|
interp_sect);
|
|
}
|
|
|
|
addr = gdb_bfd_lookup_symbol (tmp_bfd.get (), cmp_name, "_dl_debug_addr");
|
|
|
|
if (addr == 0)
|
|
{
|
|
warning (_("Could not find symbol _dl_debug_addr "
|
|
"in dynamic linker"));
|
|
enable_break_failure_warning ();
|
|
return 0;
|
|
}
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: _dl_debug_addr "
|
|
"(prior to relocation) = %s\n",
|
|
hex_string_custom (addr, 8));
|
|
|
|
addr += displacement_from_map (ldm, addr);
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: _dl_debug_addr "
|
|
"(after relocation) = %s\n",
|
|
hex_string_custom (addr, 8));
|
|
|
|
/* Fetch the address of the r_debug struct. */
|
|
if (target_read_memory (addr, addr_buf, sizeof addr_buf) != 0)
|
|
{
|
|
warning (_("Unable to fetch contents of _dl_debug_addr "
|
|
"(at address %s) from dynamic linker"),
|
|
hex_string_custom (addr, 8));
|
|
}
|
|
addr = extract_unsigned_integer (addr_buf, sizeof addr_buf, byte_order);
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: _dl_debug_addr[0..3] = %s\n",
|
|
hex_string_custom (addr, 8));
|
|
|
|
/* If it's zero, then the ldso hasn't initialized yet, and so
|
|
there are no shared libs yet loaded. */
|
|
if (addr == 0)
|
|
{
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: ldso not yet initialized\n");
|
|
/* Do not warn, but mark to run again. */
|
|
return 0;
|
|
}
|
|
|
|
/* Fetch the r_brk field. It's 8 bytes from the start of
|
|
_dl_debug_addr. */
|
|
if (target_read_memory (addr + 8, addr_buf, sizeof addr_buf) != 0)
|
|
{
|
|
warning (_("Unable to fetch _dl_debug_addr->r_brk "
|
|
"(at address %s) from dynamic linker"),
|
|
hex_string_custom (addr + 8, 8));
|
|
enable_break_failure_warning ();
|
|
return 0;
|
|
}
|
|
addr = extract_unsigned_integer (addr_buf, sizeof addr_buf, byte_order);
|
|
|
|
/* Now fetch the function entry point. */
|
|
if (target_read_memory (addr, addr_buf, sizeof addr_buf) != 0)
|
|
{
|
|
warning (_("Unable to fetch _dl_debug_addr->.r_brk entry point "
|
|
"(at address %s) from dynamic linker"),
|
|
hex_string_custom (addr, 8));
|
|
enable_break_failure_warning ();
|
|
return 0;
|
|
}
|
|
addr = extract_unsigned_integer (addr_buf, sizeof addr_buf, byte_order);
|
|
|
|
/* We're done with the loadmap. */
|
|
xfree (ldm);
|
|
|
|
/* Remove all the solib event breakpoints. Their addresses
|
|
may have changed since the last time we ran the program. */
|
|
remove_solib_event_breakpoints ();
|
|
|
|
/* Now (finally!) create the solib breakpoint. */
|
|
create_solib_event_breakpoint (target_gdbarch (), addr);
|
|
|
|
enable_break2_done = 1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Tell the user we couldn't set a dynamic linker breakpoint. */
|
|
enable_break_failure_warning ();
|
|
|
|
/* Failure return. */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
enable_break (void)
|
|
{
|
|
asection *interp_sect;
|
|
CORE_ADDR entry_point;
|
|
|
|
if (symfile_objfile == NULL)
|
|
{
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: No symbol file found.\n");
|
|
return 0;
|
|
}
|
|
|
|
if (!entry_point_address_query (&entry_point))
|
|
{
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: Symbol file has no entry point.\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Check for the presence of a .interp section. If there is no
|
|
such section, the executable is statically linked. */
|
|
|
|
interp_sect = bfd_get_section_by_name (exec_bfd, ".interp");
|
|
|
|
if (interp_sect == NULL)
|
|
{
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: No .interp section found.\n");
|
|
return 0;
|
|
}
|
|
|
|
create_solib_event_breakpoint (target_gdbarch (), entry_point);
|
|
|
|
if (solib_frv_debug)
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
"enable_break: solib event breakpoint "
|
|
"placed at entry point: %s\n",
|
|
hex_string_custom (entry_point, 8));
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
frv_relocate_main_executable (void)
|
|
{
|
|
int status;
|
|
CORE_ADDR exec_addr, interp_addr;
|
|
struct int_elf32_fdpic_loadmap *ldm;
|
|
struct cleanup *old_chain;
|
|
struct section_offsets *new_offsets;
|
|
int changed;
|
|
struct obj_section *osect;
|
|
|
|
status = frv_fdpic_loadmap_addresses (target_gdbarch (),
|
|
&interp_addr, &exec_addr);
|
|
|
|
if (status < 0 || (exec_addr == 0 && interp_addr == 0))
|
|
{
|
|
/* Not using FDPIC ABI, so do nothing. */
|
|
return;
|
|
}
|
|
|
|
/* Fetch the loadmap located at ``exec_addr''. */
|
|
ldm = fetch_loadmap (exec_addr);
|
|
if (ldm == NULL)
|
|
error (_("Unable to load the executable's loadmap."));
|
|
|
|
delete main_executable_lm_info;
|
|
main_executable_lm_info = new lm_info_frv;
|
|
main_executable_lm_info->map = ldm;
|
|
|
|
new_offsets = XCNEWVEC (struct section_offsets,
|
|
symfile_objfile->num_sections);
|
|
old_chain = make_cleanup (xfree, new_offsets);
|
|
changed = 0;
|
|
|
|
ALL_OBJFILE_OSECTIONS (symfile_objfile, osect)
|
|
{
|
|
CORE_ADDR orig_addr, addr, offset;
|
|
int osect_idx;
|
|
int seg;
|
|
|
|
osect_idx = osect - symfile_objfile->sections;
|
|
|
|
/* Current address of section. */
|
|
addr = obj_section_addr (osect);
|
|
/* Offset from where this section started. */
|
|
offset = ANOFFSET (symfile_objfile->section_offsets, osect_idx);
|
|
/* Original address prior to any past relocations. */
|
|
orig_addr = addr - offset;
|
|
|
|
for (seg = 0; seg < ldm->nsegs; seg++)
|
|
{
|
|
if (ldm->segs[seg].p_vaddr <= orig_addr
|
|
&& orig_addr < ldm->segs[seg].p_vaddr + ldm->segs[seg].p_memsz)
|
|
{
|
|
new_offsets->offsets[osect_idx]
|
|
= ldm->segs[seg].addr - ldm->segs[seg].p_vaddr;
|
|
|
|
if (new_offsets->offsets[osect_idx] != offset)
|
|
changed = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (changed)
|
|
objfile_relocate (symfile_objfile, new_offsets);
|
|
|
|
do_cleanups (old_chain);
|
|
|
|
/* Now that symfile_objfile has been relocated, we can compute the
|
|
GOT value and stash it away. */
|
|
main_executable_lm_info->got_value = main_got ();
|
|
}
|
|
|
|
/* Implement the "create_inferior_hook" target_solib_ops method.
|
|
|
|
For the FR-V shared library ABI (FDPIC), the main executable needs
|
|
to be relocated. The shared library breakpoints also need to be
|
|
enabled. */
|
|
|
|
static void
|
|
frv_solib_create_inferior_hook (int from_tty)
|
|
{
|
|
/* Relocate main executable. */
|
|
frv_relocate_main_executable ();
|
|
|
|
/* Enable shared library breakpoints. */
|
|
if (!enable_break ())
|
|
{
|
|
warning (_("shared library handler failed to enable breakpoint"));
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
frv_clear_solib (void)
|
|
{
|
|
lm_base_cache = 0;
|
|
enable_break2_done = 0;
|
|
main_lm_addr = 0;
|
|
|
|
delete main_executable_lm_info;
|
|
main_executable_lm_info = NULL;
|
|
}
|
|
|
|
static void
|
|
frv_free_so (struct so_list *so)
|
|
{
|
|
lm_info_frv *li = (lm_info_frv *) so->lm_info;
|
|
|
|
delete li;
|
|
}
|
|
|
|
static void
|
|
frv_relocate_section_addresses (struct so_list *so,
|
|
struct target_section *sec)
|
|
{
|
|
int seg;
|
|
lm_info_frv *li = (lm_info_frv *) so->lm_info;
|
|
int_elf32_fdpic_loadmap *map = li->map;
|
|
|
|
for (seg = 0; seg < map->nsegs; seg++)
|
|
{
|
|
if (map->segs[seg].p_vaddr <= sec->addr
|
|
&& sec->addr < map->segs[seg].p_vaddr + map->segs[seg].p_memsz)
|
|
{
|
|
CORE_ADDR displ = map->segs[seg].addr - map->segs[seg].p_vaddr;
|
|
|
|
sec->addr += displ;
|
|
sec->endaddr += displ;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Return the GOT address associated with the main executable. Return
|
|
0 if it can't be found. */
|
|
|
|
static CORE_ADDR
|
|
main_got (void)
|
|
{
|
|
struct bound_minimal_symbol got_sym;
|
|
|
|
got_sym = lookup_minimal_symbol ("_GLOBAL_OFFSET_TABLE_",
|
|
NULL, symfile_objfile);
|
|
if (got_sym.minsym == 0)
|
|
return 0;
|
|
|
|
return BMSYMBOL_VALUE_ADDRESS (got_sym);
|
|
}
|
|
|
|
/* Find the global pointer for the given function address ADDR. */
|
|
|
|
CORE_ADDR
|
|
frv_fdpic_find_global_pointer (CORE_ADDR addr)
|
|
{
|
|
struct so_list *so;
|
|
|
|
so = master_so_list ();
|
|
while (so)
|
|
{
|
|
int seg;
|
|
lm_info_frv *li = (lm_info_frv *) so->lm_info;
|
|
int_elf32_fdpic_loadmap *map = li->map;
|
|
|
|
for (seg = 0; seg < map->nsegs; seg++)
|
|
{
|
|
if (map->segs[seg].addr <= addr
|
|
&& addr < map->segs[seg].addr + map->segs[seg].p_memsz)
|
|
return li->got_value;
|
|
}
|
|
|
|
so = so->next;
|
|
}
|
|
|
|
/* Didn't find it in any of the shared objects. So assume it's in the
|
|
main executable. */
|
|
return main_got ();
|
|
}
|
|
|
|
/* Forward declarations for frv_fdpic_find_canonical_descriptor(). */
|
|
static CORE_ADDR find_canonical_descriptor_in_load_object
|
|
(CORE_ADDR, CORE_ADDR, const char *, bfd *, lm_info_frv *);
|
|
|
|
/* Given a function entry point, attempt to find the canonical descriptor
|
|
associated with that entry point. Return 0 if no canonical descriptor
|
|
could be found. */
|
|
|
|
CORE_ADDR
|
|
frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point)
|
|
{
|
|
const char *name;
|
|
CORE_ADDR addr;
|
|
CORE_ADDR got_value;
|
|
struct symbol *sym;
|
|
|
|
/* Fetch the corresponding global pointer for the entry point. */
|
|
got_value = frv_fdpic_find_global_pointer (entry_point);
|
|
|
|
/* Attempt to find the name of the function. If the name is available,
|
|
it'll be used as an aid in finding matching functions in the dynamic
|
|
symbol table. */
|
|
sym = find_pc_function (entry_point);
|
|
if (sym == 0)
|
|
name = 0;
|
|
else
|
|
name = SYMBOL_LINKAGE_NAME (sym);
|
|
|
|
/* Check the main executable. */
|
|
addr = find_canonical_descriptor_in_load_object
|
|
(entry_point, got_value, name, symfile_objfile->obfd,
|
|
main_executable_lm_info);
|
|
|
|
/* If descriptor not found via main executable, check each load object
|
|
in list of shared objects. */
|
|
if (addr == 0)
|
|
{
|
|
struct so_list *so;
|
|
|
|
so = master_so_list ();
|
|
while (so)
|
|
{
|
|
lm_info_frv *li = (lm_info_frv *) so->lm_info;
|
|
|
|
addr = find_canonical_descriptor_in_load_object
|
|
(entry_point, got_value, name, so->abfd, li);
|
|
|
|
if (addr != 0)
|
|
break;
|
|
|
|
so = so->next;
|
|
}
|
|
}
|
|
|
|
return addr;
|
|
}
|
|
|
|
static CORE_ADDR
|
|
find_canonical_descriptor_in_load_object
|
|
(CORE_ADDR entry_point, CORE_ADDR got_value, const char *name, bfd *abfd,
|
|
lm_info_frv *lm)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
|
|
arelent *rel;
|
|
unsigned int i;
|
|
CORE_ADDR addr = 0;
|
|
|
|
/* Nothing to do if no bfd. */
|
|
if (abfd == 0)
|
|
return 0;
|
|
|
|
/* Nothing to do if no link map. */
|
|
if (lm == 0)
|
|
return 0;
|
|
|
|
/* We want to scan the dynamic relocs for R_FRV_FUNCDESC relocations.
|
|
(More about this later.) But in order to fetch the relocs, we
|
|
need to first fetch the dynamic symbols. These symbols need to
|
|
be cached due to the way that bfd_canonicalize_dynamic_reloc()
|
|
works. (See the comments in the declaration of struct lm_info
|
|
for more information.) */
|
|
if (lm->dyn_syms == NULL)
|
|
{
|
|
long storage_needed;
|
|
unsigned int number_of_symbols;
|
|
|
|
/* Determine amount of space needed to hold the dynamic symbol table. */
|
|
storage_needed = bfd_get_dynamic_symtab_upper_bound (abfd);
|
|
|
|
/* If there are no dynamic symbols, there's nothing to do. */
|
|
if (storage_needed <= 0)
|
|
return 0;
|
|
|
|
/* Allocate space for the dynamic symbol table. */
|
|
lm->dyn_syms = (asymbol **) xmalloc (storage_needed);
|
|
|
|
/* Fetch the dynamic symbol table. */
|
|
number_of_symbols = bfd_canonicalize_dynamic_symtab (abfd, lm->dyn_syms);
|
|
|
|
if (number_of_symbols == 0)
|
|
return 0;
|
|
}
|
|
|
|
/* Fetch the dynamic relocations if not already cached. */
|
|
if (lm->dyn_relocs == NULL)
|
|
{
|
|
long storage_needed;
|
|
|
|
/* Determine amount of space needed to hold the dynamic relocs. */
|
|
storage_needed = bfd_get_dynamic_reloc_upper_bound (abfd);
|
|
|
|
/* Bail out if there are no dynamic relocs. */
|
|
if (storage_needed <= 0)
|
|
return 0;
|
|
|
|
/* Allocate space for the relocs. */
|
|
lm->dyn_relocs = (arelent **) xmalloc (storage_needed);
|
|
|
|
/* Fetch the dynamic relocs. */
|
|
lm->dyn_reloc_count
|
|
= bfd_canonicalize_dynamic_reloc (abfd, lm->dyn_relocs, lm->dyn_syms);
|
|
}
|
|
|
|
/* Search the dynamic relocs. */
|
|
for (i = 0; i < lm->dyn_reloc_count; i++)
|
|
{
|
|
rel = lm->dyn_relocs[i];
|
|
|
|
/* Relocs of interest are those which meet the following
|
|
criteria:
|
|
|
|
- the names match (assuming the caller could provide
|
|
a name which matches ``entry_point'').
|
|
- the relocation type must be R_FRV_FUNCDESC. Relocs
|
|
of this type are used (by the dynamic linker) to
|
|
look up the address of a canonical descriptor (allocating
|
|
it if need be) and initializing the GOT entry referred
|
|
to by the offset to the address of the descriptor.
|
|
|
|
These relocs of interest may be used to obtain a
|
|
candidate descriptor by first adjusting the reloc's
|
|
address according to the link map and then dereferencing
|
|
this address (which is a GOT entry) to obtain a descriptor
|
|
address. */
|
|
if ((name == 0 || strcmp (name, (*rel->sym_ptr_ptr)->name) == 0)
|
|
&& rel->howto->type == R_FRV_FUNCDESC)
|
|
{
|
|
gdb_byte buf [FRV_PTR_SIZE];
|
|
|
|
/* Compute address of address of candidate descriptor. */
|
|
addr = rel->address + displacement_from_map (lm->map, rel->address);
|
|
|
|
/* Fetch address of candidate descriptor. */
|
|
if (target_read_memory (addr, buf, sizeof buf) != 0)
|
|
continue;
|
|
addr = extract_unsigned_integer (buf, sizeof buf, byte_order);
|
|
|
|
/* Check for matching entry point. */
|
|
if (target_read_memory (addr, buf, sizeof buf) != 0)
|
|
continue;
|
|
if (extract_unsigned_integer (buf, sizeof buf, byte_order)
|
|
!= entry_point)
|
|
continue;
|
|
|
|
/* Check for matching got value. */
|
|
if (target_read_memory (addr + 4, buf, sizeof buf) != 0)
|
|
continue;
|
|
if (extract_unsigned_integer (buf, sizeof buf, byte_order)
|
|
!= got_value)
|
|
continue;
|
|
|
|
/* Match was successful! Exit loop. */
|
|
break;
|
|
}
|
|
}
|
|
|
|
return addr;
|
|
}
|
|
|
|
/* Given an objfile, return the address of its link map. This value is
|
|
needed for TLS support. */
|
|
CORE_ADDR
|
|
frv_fetch_objfile_link_map (struct objfile *objfile)
|
|
{
|
|
struct so_list *so;
|
|
|
|
/* Cause frv_current_sos() to be run if it hasn't been already. */
|
|
if (main_lm_addr == 0)
|
|
solib_add (0, 0, 1);
|
|
|
|
/* frv_current_sos() will set main_lm_addr for the main executable. */
|
|
if (objfile == symfile_objfile)
|
|
return main_lm_addr;
|
|
|
|
/* The other link map addresses may be found by examining the list
|
|
of shared libraries. */
|
|
for (so = master_so_list (); so; so = so->next)
|
|
{
|
|
lm_info_frv *li = (lm_info_frv *) so->lm_info;
|
|
|
|
if (so->objfile == objfile)
|
|
return li->lm_addr;
|
|
}
|
|
|
|
/* Not found! */
|
|
return 0;
|
|
}
|
|
|
|
struct target_so_ops frv_so_ops;
|
|
|
|
void
|
|
_initialize_frv_solib (void)
|
|
{
|
|
frv_so_ops.relocate_section_addresses = frv_relocate_section_addresses;
|
|
frv_so_ops.free_so = frv_free_so;
|
|
frv_so_ops.clear_solib = frv_clear_solib;
|
|
frv_so_ops.solib_create_inferior_hook = frv_solib_create_inferior_hook;
|
|
frv_so_ops.current_sos = frv_current_sos;
|
|
frv_so_ops.open_symbol_file_object = open_symbol_file_object;
|
|
frv_so_ops.in_dynsym_resolve_code = frv_in_dynsym_resolve_code;
|
|
frv_so_ops.bfd_open = solib_bfd_open;
|
|
|
|
/* Debug this file's internals. */
|
|
add_setshow_zuinteger_cmd ("solib-frv", class_maintenance,
|
|
&solib_frv_debug, _("\
|
|
Set internal debugging of shared library code for FR-V."), _("\
|
|
Show internal debugging of shared library code for FR-V."), _("\
|
|
When non-zero, FR-V solib specific internal debugging is enabled."),
|
|
NULL,
|
|
NULL, /* FIXME: i18n: */
|
|
&setdebuglist, &showdebuglist);
|
|
}
|