static struct gdbarch *
sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
/* If there is already a candidate, use it. */
arches = gdbarch_list_lookup_by_info (arches, &info);
if (arches != NULL)
return arches->gdbarch;
/* Allocate space for the new architecture. */
tdep = XMALLOC (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
tdep->pc_regnum = SPARC32_PC_REGNUM;
tdep->npc_regnum = SPARC32_NPC_REGNUM;
tdep->gregset = NULL;
tdep->sizeof_gregset = 0;
tdep->fpregset = NULL;
tdep->sizeof_fpregset = 0;
tdep->plt_entry_size = 0;
tdep->step_trap = sparc_step_trap;
set_gdbarch_long_double_bit (gdbarch, 128);
set_gdbarch_long_double_format (gdbarch, &floatformat_sparc_quad);
set_gdbarch_num_regs (gdbarch, SPARC32_NUM_REGS);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
set_gdbarch_register_type (gdbarch, sparc32_register_type);
set_gdbarch_num_pseudo_regs (gdbarch, SPARC32_NUM_PSEUDO_REGS);
set_gdbarch_pseudo_register_read (gdbarch, sparc32_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, sparc32_pseudo_register_write);
/* Register numbers of various important registers. */
set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM); /* %sp */
set_gdbarch_pc_regnum (gdbarch, SPARC32_PC_REGNUM); /* %pc */
set_gdbarch_fp0_regnum (gdbarch, SPARC_F0_REGNUM); /* %f0 */
/* Call dummy code. */
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
set_gdbarch_push_dummy_code (gdbarch, sparc32_push_dummy_code);
set_gdbarch_push_dummy_call (gdbarch, sparc32_push_dummy_call);
set_gdbarch_return_value (gdbarch, sparc32_return_value);
set_gdbarch_stabs_argument_has_addr
(gdbarch, sparc32_stabs_argument_has_addr);
set_gdbarch_skip_prologue (gdbarch, sparc32_skip_prologue);
/* Stack grows downward. */
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_breakpoint_from_pc (gdbarch, sparc_breakpoint_from_pc);
set_gdbarch_frame_args_skip (gdbarch, 8);
set_gdbarch_print_insn (gdbarch, print_insn_sparc);
set_gdbarch_software_single_step (gdbarch, sparc_software_single_step);
set_gdbarch_write_pc (gdbarch, sparc_write_pc);
set_gdbarch_unwind_dummy_id (gdbarch, sparc_unwind_dummy_id);
set_gdbarch_unwind_pc (gdbarch, sparc_unwind_pc);
frame_base_set_default (gdbarch, &sparc32_frame_base);
/* Hook in the DWARF CFI frame unwinder. */
dwarf2_frame_set_init_reg (gdbarch, sparc32_dwarf2_frame_init_reg);
/* FIXME: kettenis/20050423: Don't enable the unwinder until the
StackGhost issues have been resolved. */
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
frame_unwind_append_sniffer (gdbarch, sparc32_frame_sniffer);
/* If we have register sets, enable the generic core file support. */
if (tdep->gregset)
set_gdbarch_regset_from_core_section (gdbarch,
sparc_regset_from_core_section);
return gdbarch;
}
void
amd64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* AMD64 generally uses `fxsave' instead of `fsave' for saving its
floating-point registers. */
tdep->sizeof_fpregset = I387_SIZEOF_FXSAVE;
/* AMD64 has an FPU and 16 SSE registers. */
tdep->st0_regnum = AMD64_ST0_REGNUM;
tdep->num_xmm_regs = 16;
/* This is what all the fuss is about. */
set_gdbarch_long_bit (gdbarch, 64);
set_gdbarch_long_long_bit (gdbarch, 64);
set_gdbarch_ptr_bit (gdbarch, 64);
/* In contrast to the i386, on AMD64 a `long double' actually takes
up 128 bits, even though it's still based on the i387 extended
floating-point format which has only 80 significant bits. */
set_gdbarch_long_double_bit (gdbarch, 128);
set_gdbarch_num_regs (gdbarch, AMD64_NUM_REGS);
set_gdbarch_register_name (gdbarch, amd64_register_name);
set_gdbarch_register_type (gdbarch, amd64_register_type);
/* Register numbers of various important registers. */
set_gdbarch_sp_regnum (gdbarch, AMD64_RSP_REGNUM); /* %rsp */
set_gdbarch_pc_regnum (gdbarch, AMD64_RIP_REGNUM); /* %rip */
set_gdbarch_ps_regnum (gdbarch, AMD64_EFLAGS_REGNUM); /* %eflags */
set_gdbarch_fp0_regnum (gdbarch, AMD64_ST0_REGNUM); /* %st(0) */
/* APPLE LOCAL: Add the frame pointer register so it can be modified
in expressions. */
set_gdbarch_deprecated_fp_regnum (gdbarch, AMD64_RBP_REGNUM); /* %rbp */
/* The "default" register numbering scheme for AMD64 is referred to
as the "DWARF Register Number Mapping" in the System V psABI.
The preferred debugging format for all known AMD64 targets is
actually DWARF2, and GCC doesn't seem to support DWARF (that is
DWARF-1), but we provide the same mapping just in case. This
mapping is also used for stabs, which GCC does support. */
set_gdbarch_stab_reg_to_regnum (gdbarch, amd64_dwarf_reg_to_regnum);
set_gdbarch_dwarf_reg_to_regnum (gdbarch, amd64_dwarf_reg_to_regnum);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, amd64_dwarf_reg_to_regnum);
/* We don't override SDB_REG_RO_REGNUM, since COFF doesn't seem to
be in use on any of the supported AMD64 targets. */
/* Call dummy code. */
set_gdbarch_push_dummy_call (gdbarch, amd64_push_dummy_call);
set_gdbarch_frame_align (gdbarch, amd64_frame_align);
set_gdbarch_frame_red_zone_size (gdbarch, 128);
set_gdbarch_convert_register_p (gdbarch, amd64_convert_register_p);
set_gdbarch_register_to_value (gdbarch, i387_register_to_value);
set_gdbarch_value_to_register (gdbarch, i387_value_to_register);
set_gdbarch_return_value (gdbarch, amd64_return_value);
set_gdbarch_skip_prologue (gdbarch, amd64_skip_prologue);
/* Avoid wiring in the MMX registers for now. */
set_gdbarch_num_pseudo_regs (gdbarch, 0);
tdep->mm0_regnum = -1;
set_gdbarch_unwind_dummy_id (gdbarch, amd64_unwind_dummy_id);
frame_unwind_append_sniffer (gdbarch, amd64_sigtramp_frame_sniffer);
frame_unwind_append_sniffer (gdbarch, amd64_frame_sniffer);
frame_base_set_default (gdbarch, &amd64_frame_base);
/* If we have a register mapping, enable the generic core file support. */
if (tdep->gregset_reg_offset)
set_gdbarch_regset_from_core_section (gdbarch,
amd64_regset_from_core_section);
/* APPLE LOCAL: A handy little function. */
set_gdbarch_fetch_pointer_argument (gdbarch, amd64_fetch_pointer_argument);
}
