projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 68cc0bfb MK |
1 | /* Target-dependent code for FreeBSD/amd64. |
| 2 | Copyright 2003 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GDB. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program; if not, write to the Free Software | |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | #include "defs.h" | |
| 22 | #include "arch-utils.h" | |
| 23 | #include "frame.h" | |
| 24 | #include "gdbcore.h" | |
| 25 | #include "regcache.h" | |
| 26 | #include "osabi.h" | |
| 27 | ||
| 28 | #include "gdb_string.h" | |
| 29 | ||
| 30 | #include "x86-64-tdep.h" | |
| 31 | ||
| 32 | /* Support for signal handlers. */ | |
| 33 | ||
| 34 | /* Assuming NEXT_FRAME is for a frame following a BSD sigtramp | |
| 35 | routine, return the address of the associated sigcontext structure. */ | |
| 36 | ||
| 37 | static CORE_ADDR | |
| 38 | amd64fbsd_sigcontext_addr (struct frame_info *next_frame) | |
| 39 | { | |
| 40 | char buf[8]; | |
| 41 | CORE_ADDR sp; | |
| 42 | ||
| 43 | frame_unwind_register (next_frame, X86_64_RSP_REGNUM, buf); | |
| 44 | sp = extract_unsigned_integer (buf, 8); | |
| 45 | ||
| 46 | return read_memory_unsigned_integer (sp + 16, 8); | |
| 47 | } | |
| 48 | \f | |
| 49 | /* FreeBSD 5.1-RELEASE or later. */ | |
| 50 | ||
| 51 | /* Location of the signal trampoline. */ | |
| 52 | CORE_ADDR amd64fbsd_sigtramp_start = 0x7fffffffc0; | |
| 53 | CORE_ADDR amd64fbsd_sigtramp_end = 0x7fffffffe0; | |
| 54 | ||
| 55 | /* From <machine/signal.h>. */ | |
| 56 | int amd64fbsd_sc_reg_offset[X86_64_NUM_GREGS] = | |
| 57 | { | |
| 58 | 24 + 14 * 8, /* %rax */ | |
| 59 | 24 + 11 * 8, /* %rbx */ | |
| 60 | 24 + 13 * 8, /* %rcx */ | |
| 61 | 24 + 12 * 8, /* %rdx */ | |
| 62 | 24 + 9 * 8, /* %rsi */ | |
| 63 | 24 + 8 * 8, /* %rdi */ | |
| 64 | 24 + 10 * 8, /* %rbp */ | |
| 65 | 24 + 20 * 8, /* %rsp */ | |
| 66 | 24 + 7 * 8, /* %r8 */ | |
| 67 | 24 + 6 * 8, /* %r9 */ | |
| 68 | 24 + 5 * 8, /* %r10 */ | |
| 69 | 24 + 4 * 8, /* %r11 */ | |
| 70 | 24 + 3 * 8, /* %r12 */ | |
| 71 | 24 + 2 * 8, /* %r13 */ | |
| 72 | 24 + 1 * 8, /* %r14 */ | |
| 73 | 24 + 0 * 8, /* %r15 */ | |
| 74 | 24 + 17 * 8, /* %rip */ | |
| 75 | 24 + 19 * 8, /* %eflags */ | |
| 76 | -1, /* %ds */ | |
| 77 | -1, /* %es */ | |
| 78 | -1, /* %fs */ | |
| 79 | -1 /* %gs */ | |
| 80 | }; | |
| 81 | ||
| 82 | void | |
| 83 | amd64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
| 84 | { | |
| 85 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
| 86 | ||
| 87 | /* Obviously FreeBSD is BSD-based. */ | |
| 88 | i386bsd_init_abi (info, gdbarch); | |
| 89 | ||
| 90 | x86_64_init_abi (info, gdbarch); | |
| 91 | ||
| 92 | tdep->sigtramp_start = amd64fbsd_sigtramp_start; | |
| 93 | tdep->sigtramp_end = amd64fbsd_sigtramp_start; | |
| 94 | tdep->sigcontext_addr = amd64fbsd_sigcontext_addr; | |
| 95 | tdep->sc_reg_offset = amd64fbsd_sc_reg_offset; | |
| 96 | tdep->sc_num_regs = X86_64_NUM_GREGS; | |
| 97 | } | |
| 98 | \f | |
| 99 | ||
| 100 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
| 101 | void _initialize_amd64fbsd_tdep (void); | |
| 102 | ||
| 103 | void | |
| 104 | _initialize_amd64fbsd_tdep (void) | |
| 105 | { | |
| 106 | gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, | |
| 107 | GDB_OSABI_FREEBSD_ELF, amd64fbsd_init_abi); | |
| 108 | } |