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authorStephane Carrez <stcarrez@nerim.fr>2000-09-05 20:57:25 +0000
committerStephane Carrez <stcarrez@nerim.fr>2000-09-05 20:57:25 +0000
commit6148eca7f8449c429fb737d714f1e3a9030c76ce (patch)
treec990adaf5c2cd634ac9ae1175268b938be7c6140 /gdb/m68hc11-tdep.c
parent4d72d17a49970a6b6fe3e8c9da3b7509cd564672 (diff)
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Fix frame unwinding for 68hc11
Diffstat (limited to 'gdb/m68hc11-tdep.c')
-rw-r--r--gdb/m68hc11-tdep.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c
index 7b19979..611fb3e 100644
--- a/gdb/m68hc11-tdep.c
+++ b/gdb/m68hc11-tdep.c
@@ -378,6 +378,7 @@ m68hc11_guess_from_prologue (CORE_ADDR pc, CORE_ADDR fp,
#define OP_ADDD (0xc3)
#define OP_TXS (0x35)
#define OP_TYS (0x35)
+#define OP_DES (0x34)
/* The 68hc11 stack is as follows:
@@ -469,6 +470,12 @@ m68hc11_guess_from_prologue (CORE_ADDR pc, CORE_ADDR fp,
add_sp_mode = 1;
pc += 2;
}
+ /* des to allocate 1 byte on the stack */
+ else if (op0 == OP_DES)
+ {
+ pc += 1;
+ size += 1;
+ }
else if (op0 == OP_PAGE2 && op1 == OP_TSY && op2 == OP_PAGE2)
{
op0 = read_memory_unsigned_integer (pc + 3, 1);
@@ -615,6 +622,9 @@ m68hc11_frame_chain (struct frame_info *frame)
{
CORE_ADDR addr;
+ if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
+ return frame->frame; /* dummy frame same as caller's frame */
+
if (frame->extra_info->return_pc == 0
|| inside_entry_file (frame->extra_info->return_pc))
return (CORE_ADDR) 0;