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* amd64-linux-tdep.c (amd64_linux_init_abi_common): New function.

Browse Source 
Move bits common to both the classic LP64 and the new x32 ILP32
        ABI here.
        (amd64_linux_init_abi): Call amd64_linux_init_abi_common.
        (amd64_x32_linux_init_abi): New function.
        (_initialize_amd64_linux_tdep): Register osabi for bfd_mach_x64_32
        subtype.
This commit is contained in:
Mark Kettenis 2012-06-13 20:36:48 +00:00
parent fff4548bff
commit 5a83521a3c
2 changed files with 93 additions and 34 deletions
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8
gdb/ChangeLog
View File

@ -1,6 +1,14 @@
2012-06-13 Mark Kettenis <kettenis@gnu.org>
H.J. Lu <hongjiu.lu@intel.com>
* amd64-linux-tdep.c (amd64_linux_init_abi_common): New function.
Move bits common to both the classic LP64 and the new x32 ILP32
ABI here.
(amd64_linux_init_abi): Call amd64_linux_init_abi_common.
(amd64_x32_linux_init_abi): New function.
(_initialize_amd64_linux_tdep): Register osabi for bfd_mach_x64_32
subtype.
* i386-tdep.h (i386_pseudo_register_name): New prototype.
* i386-tdep.c (i386_pseudo_register_name): Make public.
* amd64-tdep.h (amd64_x32_init_abi): New prototype.

119
gdb/amd64-linux-tdep.c
View File

@ -1288,41 +1288,12 @@ amd64_linux_core_read_description (struct gdbarch *gdbarch,
}
static void
amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
amd64_linux_init_abi_common(struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct target_desc *tdesc = info.target_desc;
struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
const struct tdesc_feature *feature;
int valid_p;
gdb_assert (tdesc_data);
linux_init_abi (info, gdbarch);
tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
tdep->sizeof_gregset = 27 * 8;
amd64_init_abi (info, gdbarch);
/* Reserve a number for orig_rax. */
set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
if (! tdesc_has_registers (tdesc))
tdesc = tdesc_amd64_linux;
tdep->tdesc = tdesc;
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
if (feature == NULL)
return;
valid_p = tdesc_numbered_register (feature, tdesc_data,
AMD64_LINUX_ORIG_RAX_REGNUM,
"orig_rax");
if (!valid_p)
return;
tdep->sigtramp_p = amd64_linux_sigtramp_p;
tdep->sigcontext_addr = amd64_linux_sigcontext_addr;
tdep->sc_reg_offset = amd64_linux_sc_reg_offset;
@ -1330,10 +1301,6 @@ amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET;
/* GNU/Linux uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
/* Add the %orig_rax register used for syscall restarting. */
set_gdbarch_write_pc (gdbarch, amd64_linux_write_pc);
@ -1543,6 +1510,88 @@ amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdep->i386_syscall_record = amd64_linux_syscall_record;
}
static void
amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct target_desc *tdesc = info.target_desc;
struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
const struct tdesc_feature *feature;
int valid_p;
gdb_assert (tdesc_data);
tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
tdep->sizeof_gregset = 27 * 8;
amd64_init_abi (info, gdbarch);
/* Reserve a number for orig_rax. */
set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
if (! tdesc_has_registers (tdesc))
tdesc = tdesc_amd64_linux;
tdep->tdesc = tdesc;
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
if (feature == NULL)
return;
valid_p = tdesc_numbered_register (feature, tdesc_data,
AMD64_LINUX_ORIG_RAX_REGNUM,
"orig_rax");
if (!valid_p)
return;
amd64_linux_init_abi_common (info, gdbarch);
/* GNU/Linux uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
}
static void
amd64_x32_linux_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct target_desc *tdesc = info.target_desc;
struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
const struct tdesc_feature *feature;
int valid_p;
gdb_assert (tdesc_data);
tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
tdep->sizeof_gregset = 27 * 8;
amd64_x32_init_abi (info, gdbarch);
/* Reserve a number for orig_rax. */
set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
if (! tdesc_has_registers (tdesc))
tdesc = tdesc_x32_linux;
tdep->tdesc = tdesc;
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
if (feature == NULL)
return;
valid_p = tdesc_numbered_register (feature, tdesc_data,
AMD64_LINUX_ORIG_RAX_REGNUM,
"orig_rax");
if (!valid_p)
return;
amd64_linux_init_abi_common (info, gdbarch);
/* GNU/Linux uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
@ -1553,6 +1602,8 @@ _initialize_amd64_linux_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_LINUX, amd64_linux_init_abi);
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x64_32,
GDB_OSABI_LINUX, amd64_x32_linux_init_abi);
/* Initialize the Linux target description. */
initialize_tdesc_amd64_linux ();