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Diffstat (limited to 'gdb/i386-darwin-tdep.c')
| -rw-r--r-- | gdb/i386-darwin-tdep.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/gdb/i386-darwin-tdep.c b/gdb/i386-darwin-tdep.c new file mode 100644 index 0000000..522fe63 --- /dev/null +++ b/gdb/i386-darwin-tdep.c @@ -0,0 +1,159 @@ +/* Darwin support for GDB, the GNU debugger. + Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2008 + Free Software Foundation, Inc. + + Contributed by Apple Computer, 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 "frame.h" +#include "inferior.h" +#include "gdbcore.h" +#include "target.h" +#include "floatformat.h" +#include "symtab.h" +#include "regcache.h" +#include "libbfd.h" +#include "objfiles.h" + +#include "i387-tdep.h" +#include "i386-tdep.h" +#include "amd64-tdep.h" +#include "osabi.h" +#include "ui-out.h" +#include "symtab.h" +#include "frame.h" +#include "gdb_assert.h" +#include "i386-darwin-tdep.h" + +/* Offsets into the struct i386_thread_state where we'll find the saved regs. + From <mach/i386/thread_status.h> and i386-tdep.h. */ +int i386_darwin_thread_state_reg_offset[] = +{ + 0 * 4, /* EAX */ + 2 * 4, /* ECX */ + 3 * 4, /* EDX */ + 1 * 4, /* EBX */ + 7 * 4, /* ESP */ + 6 * 4, /* EBP */ + 5 * 4, /* ESI */ + 4 * 4, /* EDI */ + 10 * 4, /* EIP */ + 9 * 4, /* EFLAGS */ + 11 * 4, /* CS */ + 8, /* SS */ + 12 * 4, /* DS */ + 13 * 4, /* ES */ + 14 * 4, /* FS */ + 15 * 4 /* GS */ +}; + +const int i386_darwin_thread_state_num_regs = + ARRAY_SIZE (i386_darwin_thread_state_reg_offset); + +/* Offsets into the struct x86_thread_state64 where we'll find the saved regs. + From <mach/i386/thread_status.h> and amd64-tdep.h. */ +int amd64_darwin_thread_state_reg_offset[] = +{ + 0 * 8, /* %rax */ + 1 * 8, /* %rbx */ + 2 * 8, /* %rcx */ + 3 * 8, /* %rdx */ + 5 * 8, /* %rsi */ + 4 * 8, /* %rdi */ + 6 * 8, /* %rbp */ + 7 * 8, /* %rsp */ + 8 * 8, /* %r8 ... */ + 9 * 8, + 10 * 8, + 11 * 8, + 12 * 8, + 13 * 8, + 14 * 8, + 15 * 8, /* ... %r15 */ + 16 * 8, /* %rip */ + 17 * 8, /* %rflags */ + 18 * 8, /* %cs */ + -1, /* %ss */ + -1, /* %ds */ + -1, /* %es */ + 19 * 8, /* %fs */ + 20 * 8 /* %gs */ +}; + +const int amd64_darwin_thread_state_num_regs = + ARRAY_SIZE (amd64_darwin_thread_state_reg_offset); + +static void +i386_darwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + /* We support the SSE registers. */ + tdep->num_xmm_regs = I386_NUM_XREGS - 1; + set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS); + + tdep->struct_return = reg_struct_return; + + tdep->sigcontext_addr = NULL; + tdep->sc_reg_offset = i386_darwin_thread_state_reg_offset; + tdep->sc_num_regs = 16; + + tdep->jb_pc_offset = 20; +} + +static void +x86_darwin_init_abi_64 (struct gdbarch_info info, struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + amd64_init_abi (info, gdbarch); + + tdep->struct_return = reg_struct_return; + + /* We don't do signals yet. */ + tdep->sigcontext_addr = NULL; + tdep->sc_reg_offset = amd64_darwin_thread_state_reg_offset; + tdep->sc_num_regs = ARRAY_SIZE (amd64_darwin_thread_state_reg_offset); + + tdep->jb_pc_offset = 148; +} + +static enum gdb_osabi +i386_mach_o_osabi_sniffer (bfd *abfd) +{ + if (!bfd_check_format (abfd, bfd_object)) + return GDB_OSABI_UNKNOWN; + + if (bfd_get_arch (abfd) == bfd_arch_i386) + return GDB_OSABI_DARWIN; + + return GDB_OSABI_UNKNOWN; +} + +void +_initialize_i386_darwin_tdep (void) +{ + gdbarch_register_osabi_sniffer (bfd_arch_unknown, bfd_target_mach_o_flavour, + i386_mach_o_osabi_sniffer); + + gdbarch_register_osabi (bfd_arch_i386, bfd_mach_i386_i386, + GDB_OSABI_DARWIN, i386_darwin_init_abi); + + gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, + GDB_OSABI_DARWIN, x86_darwin_init_abi_64); +} |