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* amd64-windows-tdep.c (amd64_skip_main_prologue): New function.

Browse source 
(amd64_windows_init_abi): Register amd64_skip_main_prologue as gdbarch
	skip_main_prologue method.
This commit is contained in:
Pierre Muller 2010-09-27 22:05:40 +00:00
parent 6a44904e97
commit 99e24b9065
2 changed files with 39 additions and 0 deletions
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6
gdb/ChangeLog
View file

@ -1,3 +1,9 @@
2010-09-27 Pierre Muller <muller@ics.u-strasbg.fr>
* amd64-windows-tdep.c (amd64_skip_main_prologue): New function.
(amd64_windows_init_abi): Register amd64_skip_main_prologue as gdbarch
skip_main_prologue method.
2010-09-27 Tom Tromey <tromey@redhat.com>
* dwarf2read.c (dwarf2_read_index): Only allow version 3.

33
gdb/amd64-windows-tdep.c
View file

@ -122,6 +122,38 @@ amd64_windows_return_value (struct gdbarch *gdbarch, struct type *func_type,
}
}
/* Check that the code pointed to by PC corresponds to a call to
__main, skip it if so. Return PC otherwise. */
static CORE_ADDR
amd64_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte op;
target_read_memory (pc, &op, 1);
if (op == 0xe8)
{
gdb_byte buf[4];
if (target_read_memory (pc + 1, buf, sizeof buf) == 0)
{
struct minimal_symbol *s;
CORE_ADDR call_dest;
call_dest = pc + 5 + extract_signed_integer (buf, 4, byte_order);
s = lookup_minimal_symbol_by_pc (call_dest);
if (s != NULL
&& SYMBOL_LINKAGE_NAME (s) != NULL
&& strcmp (SYMBOL_LINKAGE_NAME (s), "__main") == 0)
pc += 5;
}
}
return pc;
}
static void
amd64_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
@ -140,6 +172,7 @@ amd64_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdep->memory_args_by_pointer = 1;
tdep->integer_param_regs_saved_in_caller_frame = 1;
set_gdbarch_return_value (gdbarch, amd64_windows_return_value);
set_gdbarch_skip_main_prologue (gdbarch, amd64_skip_main_prologue);
set_solib_ops (gdbarch, &solib_target_so_ops);
}