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authorMark Kettenis <kettenis@gnu.org>2012-06-13 20:29:15 +0000
committerMark Kettenis <kettenis@gnu.org>2012-06-13 20:29:15 +0000
commitfff4548bff0958dd77ee051e6b322f1c884896c9 (patch)
treed2bbbbb15c3295c6e10fd76d0dd84f95393b9784 /gdb/amd64-tdep.c
parentdd80ea3c315b22e0751f62d7049969903d9c95ec (diff)
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H.J. Lu <hongjiu.lu@intel.com>
* 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. * amd64-tdep.c (amd64_dword_names): Add "eip". (amd64_x32_pseudo_register_type): New function (amd64_x32_init_abi): New function.
Diffstat (limited to 'gdb/amd64-tdep.c')
-rw-r--r--gdb/amd64-tdep.c40
1 files changed, 39 insertions, 1 deletions
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index df91a51..2db5cf0 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -258,7 +258,8 @@ static const char *amd64_word_names[] =
static const char *amd64_dword_names[] =
{
"eax", "ebx", "ecx", "edx", "esi", "edi", "ebp", "esp",
- "r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d"
+ "r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d",
+ "eip"
};
/* Return the name of register REGNUM. */
@@ -2729,6 +2730,43 @@ amd64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_stap_parse_special_token (gdbarch,
i386_stap_parse_special_token);
}
+
+
+static struct type *
+amd64_x32_pseudo_register_type (struct gdbarch *gdbarch, int regnum)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ switch (regnum - tdep->eax_regnum)
+ {
+ case AMD64_RBP_REGNUM: /* %ebp */
+ case AMD64_RSP_REGNUM: /* %esp */
+ return builtin_type (gdbarch)->builtin_data_ptr;
+ case AMD64_RIP_REGNUM: /* %eip */
+ return builtin_type (gdbarch)->builtin_func_ptr;
+ }
+
+ return i386_pseudo_register_type (gdbarch, regnum);
+}
+
+void
+amd64_x32_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const struct target_desc *tdesc = info.target_desc;
+
+ amd64_init_abi (info, gdbarch);
+
+ if (! tdesc_has_registers (tdesc))
+ tdesc = tdesc_x32;
+ tdep->tdesc = tdesc;
+
+ tdep->num_dword_regs = 17;
+ set_tdesc_pseudo_register_type (gdbarch, amd64_x32_pseudo_register_type);
+
+ set_gdbarch_long_bit (gdbarch, 32);
+ set_gdbarch_ptr_bit (gdbarch, 32);
+}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_amd64_tdep (void);