diff options
Diffstat (limited to 'gdb/amd64fbsd-tdep.c')
| -rw-r--r-- | gdb/amd64fbsd-tdep.c | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/gdb/amd64fbsd-tdep.c b/gdb/amd64fbsd-tdep.c deleted file mode 100644 index 1aae6ab5531..00000000000 --- a/gdb/amd64fbsd-tdep.c +++ /dev/null @@ -1,222 +0,0 @@ -/* Target-dependent code for FreeBSD/amd64. - - Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 - 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 "arch-utils.h" -#include "frame.h" -#include "gdbcore.h" -#include "regcache.h" -#include "osabi.h" - -#include "gdb_assert.h" -#include "gdb_string.h" - -#include "amd64-tdep.h" -#include "bsd-uthread.h" -#include "solib-svr4.h" - -/* Support for signal handlers. */ - -/* Assuming THIS_FRAME is for a BSD sigtramp routine, return the - address of the associated sigcontext structure. */ - -static CORE_ADDR -amd64fbsd_sigcontext_addr (struct frame_info *this_frame) -{ - CORE_ADDR sp; - - /* The `struct sigcontext' (which really is an `ucontext_t' on - FreeBSD/amd64) lives at a fixed offset in the signal frame. See - <machine/sigframe.h>. */ - sp = frame_unwind_register_unsigned (this_frame, AMD64_RSP_REGNUM); - return sp + 16; -} - -/* FreeBSD 5.1-RELEASE or later. */ - -/* Mapping between the general-purpose registers in `struct reg' - format and GDB's register cache layout. - - Note that some registers are 32-bit, but since we're little-endian - we get away with that. */ - -/* From <machine/reg.h>. */ -static int amd64fbsd_r_reg_offset[] = -{ - 14 * 8, /* %rax */ - 11 * 8, /* %rbx */ - 13 * 8, /* %rcx */ - 12 * 8, /* %rdx */ - 9 * 8, /* %rsi */ - 8 * 8, /* %rdi */ - 10 * 8, /* %rbp */ - 20 * 8, /* %rsp */ - 7 * 8, /* %r8 ... */ - 6 * 8, - 5 * 8, - 4 * 8, - 3 * 8, - 2 * 8, - 1 * 8, - 0 * 8, /* ... %r15 */ - 17 * 8, /* %rip */ - 19 * 8, /* %eflags */ - 18 * 8, /* %cs */ - 21 * 8, /* %ss */ - -1, /* %ds */ - -1, /* %es */ - -1, /* %fs */ - -1 /* %gs */ -}; - -/* Location of the signal trampoline. */ -CORE_ADDR amd64fbsd_sigtramp_start_addr = 0x7fffffffffc0ULL; -CORE_ADDR amd64fbsd_sigtramp_end_addr = 0x7fffffffffe0ULL; - -/* From <machine/signal.h>. */ -int amd64fbsd_sc_reg_offset[] = -{ - 24 + 6 * 8, /* %rax */ - 24 + 7 * 8, /* %rbx */ - 24 + 3 * 8, /* %rcx */ - 24 + 2 * 8, /* %rdx */ - 24 + 1 * 8, /* %rsi */ - 24 + 0 * 8, /* %rdi */ - 24 + 8 * 8, /* %rbp */ - 24 + 22 * 8, /* %rsp */ - 24 + 4 * 8, /* %r8 ... */ - 24 + 5 * 8, - 24 + 9 * 8, - 24 + 10 * 8, - 24 + 11 * 8, - 24 + 12 * 8, - 24 + 13 * 8, - 24 + 14 * 8, /* ... %r15 */ - 24 + 19 * 8, /* %rip */ - 24 + 21 * 8, /* %eflags */ - 24 + 20 * 8, /* %cs */ - 24 + 23 * 8, /* %ss */ - -1, /* %ds */ - -1, /* %es */ - -1, /* %fs */ - -1 /* %gs */ -}; - -/* From /usr/src/lib/libc/amd64/gen/_setjmp.S. */ -static int amd64fbsd_jmp_buf_reg_offset[] = -{ - -1, /* %rax */ - 1 * 8, /* %rbx */ - -1, /* %rcx */ - -1, /* %rdx */ - -1, /* %rsi */ - -1, /* %rdi */ - 3 * 8, /* %rbp */ - 2 * 8, /* %rsp */ - -1, /* %r8 ... */ - -1, - -1, - -1, /* ... %r11 */ - 4 * 8, /* %r12 ... */ - 5 * 8, - 6 * 8, - 7 * 8, /* ... %r15 */ - 0 * 8 /* %rip */ -}; - -static void -amd64fbsd_supply_uthread (struct regcache *regcache, - int regnum, CORE_ADDR addr) -{ - gdb_byte buf[8]; - int i; - - gdb_assert (regnum >= -1); - - for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++) - { - if (amd64fbsd_jmp_buf_reg_offset[i] != -1 - && (regnum == -1 || regnum == i)) - { - read_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8); - regcache_raw_supply (regcache, i, buf); - } - } -} - -static void -amd64fbsd_collect_uthread (const struct regcache *regcache, - int regnum, CORE_ADDR addr) -{ - gdb_byte buf[8]; - int i; - - gdb_assert (regnum >= -1); - - for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++) - { - if (amd64fbsd_jmp_buf_reg_offset[i] != -1 - && (regnum == -1 || regnum == i)) - { - regcache_raw_collect (regcache, i, buf); - write_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8); - } - } -} - -static void -amd64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) -{ - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - - /* Obviously FreeBSD is BSD-based. */ - i386bsd_init_abi (info, gdbarch); - - tdep->gregset_reg_offset = amd64fbsd_r_reg_offset; - tdep->gregset_num_regs = ARRAY_SIZE (amd64fbsd_r_reg_offset); - tdep->sizeof_gregset = 22 * 8; - - amd64_init_abi (info, gdbarch); - - tdep->sigtramp_start = amd64fbsd_sigtramp_start_addr; - tdep->sigtramp_end = amd64fbsd_sigtramp_end_addr; - tdep->sigcontext_addr = amd64fbsd_sigcontext_addr; - tdep->sc_reg_offset = amd64fbsd_sc_reg_offset; - tdep->sc_num_regs = ARRAY_SIZE (amd64fbsd_sc_reg_offset); - - /* FreeBSD provides a user-level threads implementation. */ - bsd_uthread_set_supply_uthread (gdbarch, amd64fbsd_supply_uthread); - bsd_uthread_set_collect_uthread (gdbarch, amd64fbsd_collect_uthread); - - /* FreeBSD uses SVR4-style shared libraries. */ - set_solib_svr4_fetch_link_map_offsets - (gdbarch, svr4_lp64_fetch_link_map_offsets); -} - - -/* Provide a prototype to silence -Wmissing-prototypes. */ -void _initialize_amd64fbsd_tdep (void); - -void -_initialize_amd64fbsd_tdep (void) -{ - gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, - GDB_OSABI_FREEBSD_ELF, amd64fbsd_init_abi); -} |