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* gnu-v3-abi.c (gnuv3_skip_trampoline): Handle thunk

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minimal symbols pointing to function descriptors.
This commit is contained in:
Luis Machado 2013-06-05 20:43:53 +00:00
parent f993f39ec9
commit a513d1e8c0
2 changed files with 16 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2013-06-05 Luis Machado <lgustavo@codesourcery.com>
* gnu-v3-abi.c (gnuv3_skip_trampoline): Handle thunk
minimal symbols pointing to function descriptors.
2013-06-05 Tom Tromey <tromey@redhat.com>
* python/py-utils.c (gdb_pymodule_addobject): Cast away const.

12
gdb/gnu-v3-abi.c
View File

@ -1207,7 +1207,7 @@ gnuv3_get_type_from_type_info (struct value *type_info_ptr)
static CORE_ADDR
gnuv3_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
{
CORE_ADDR real_stop_pc, method_stop_pc;
CORE_ADDR real_stop_pc, method_stop_pc, func_addr;
struct gdbarch *gdbarch = get_frame_arch (frame);
struct minimal_symbol *thunk_sym, *fn_sym;
struct obj_section *section;
@ -1236,6 +1236,16 @@ gnuv3_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
return 0;
method_stop_pc = SYMBOL_VALUE_ADDRESS (fn_sym);
/* Some targets have minimal symbols pointing to function descriptors
(powerpc 64 for example). Make sure to retrieve the address
of the real function from the function descriptor before passing on
the address to other layers of GDB. */
func_addr = gdbarch_convert_from_func_ptr_addr (gdbarch, method_stop_pc,
&current_target);
if (func_addr != 0)
method_stop_pc = func_addr;
real_stop_pc = gdbarch_skip_trampoline_code
(gdbarch, frame, method_stop_pc);
if (real_stop_pc == 0)