diff options
Diffstat (limited to 'gdb/ns32k-tdep.c')
-rw-r--r-- | gdb/ns32k-tdep.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/gdb/ns32k-tdep.c b/gdb/ns32k-tdep.c index 5563cf9..89bdee9 100644 --- a/gdb/ns32k-tdep.c +++ b/gdb/ns32k-tdep.c @@ -314,11 +314,36 @@ ns32k_frame_chain (struct frame_info *frame) return (read_memory_integer (frame->frame, 4)); } + +static CORE_ADDR +ns32k_sigtramp_saved_pc (struct frame_info *frame) +{ + CORE_ADDR sigcontext_addr; + char *buf; + int ptrbytes = TYPE_LENGTH (builtin_type_void_func_ptr); + int sigcontext_offs = (2 * TARGET_INT_BIT) / TARGET_CHAR_BIT; + + buf = alloca (ptrbytes); + /* Get sigcontext address, it is the third parameter on the stack. */ + if (frame->next) + sigcontext_addr = read_memory_typed_address + (FRAME_ARGS_ADDRESS (frame->next) + FRAME_ARGS_SKIP + sigcontext_offs, + builtin_type_void_data_ptr); + else + sigcontext_addr = read_memory_typed_address + (read_register (SP_REGNUM) + sigcontext_offs, builtin_type_void_data_ptr); + + /* Don't cause a memory_error when accessing sigcontext in case the stack + layout has changed or the stack is corrupt. */ + target_read_memory (sigcontext_addr + SIGCONTEXT_PC_OFFSET, buf, ptrbytes); + return extract_typed_address (buf, builtin_type_void_func_ptr); +} + static CORE_ADDR ns32k_frame_saved_pc (struct frame_info *frame) { if (frame->signal_handler_caller) - return (sigtramp_saved_pc (frame)); /* XXXJRT */ + return (ns32k_sigtramp_saved_pc (frame)); /* XXXJRT */ return (read_memory_integer (frame->frame + 4, 4)); } |