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authorJim Kingdon <jkingdon@engr.sgi.com>1993-04-20 18:02:54 +0000
committerJim Kingdon <jkingdon@engr.sgi.com>1993-04-20 18:02:54 +0000
commitcee86be37f49b8e1ec399271b9e7a4945faf34e5 (patch)
tree7e4ad00eb100e5c1d5918fe623efeacd00160a50 /gdb
parent01f5a1f8257c2837c4d3388e0f6b5d13ffb1422b (diff)
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* rs6000-tdep.c: Delete unused function print_frame.
* frame.h (struct frame_info): Doc fix for next_frame. New field signal_handler_caller. blockframe.c (create_new_frame, get_prev_frame_info), config/rs6000/tm-rs6000.h (INIT_EXTRA_FRAME_INFO): Set it (needs INIT_FRAME_PC_FIRST). stack.c (print_frame_info), rs6000-tdep.c (rs6000_frame_chain): Check it.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog12
-rw-r--r--gdb/rs6000-tdep.c26
-rw-r--r--gdb/stack.c9
3 files changed, 25 insertions, 22 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6f2ca5a..774c63d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,15 @@
+Tue Apr 20 08:55:11 1993 Jim Kingdon (kingdon@cygnus.com)
+
+ * rs6000-tdep.c: Delete unused function print_frame.
+
+ * frame.h (struct frame_info): Doc fix for next_frame.
+ New field signal_handler_caller.
+ blockframe.c (create_new_frame, get_prev_frame_info),
+ config/rs6000/tm-rs6000.h (INIT_EXTRA_FRAME_INFO): Set it (needs
+ INIT_FRAME_PC_FIRST).
+ stack.c (print_frame_info), rs6000-tdep.c (rs6000_frame_chain):
+ Check it.
+
Mon Apr 19 22:52:33 1993 Stu Grossman (grossman@cygnus.com)
* irix4-nat.c (fetch_core_registers): Special version of this for
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 5aa7632..12d3361 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -892,23 +892,6 @@ extract_return_value (valtype, regbuf, valbuf)
CORE_ADDR rs6000_struct_return_address;
-/* Throw away this debugging code. FIXMEmgo. */
-void
-print_frame(fram)
-int fram;
-{
- int ii, val;
- for (ii=0; ii<40; ++ii) {
- if ((ii % 4) == 0)
- printf ("\n");
- val = read_memory_integer (fram + ii * 4, 4);
- printf ("0x%08x\t", val);
- }
- printf ("\n");
-}
-
-
-
/* Indirect function calls use a piece of trampoline code to do context
switching, i.e. to set the new TOC table. Skip such code if we are on
its first instruction (as when we have single-stepped to here).
@@ -1098,12 +1081,8 @@ rs6000_frame_chain (thisframe)
FRAME_ADDR fp;
if (inside_entry_file ((thisframe)->pc))
return 0;
- fp = read_memory_integer ((thisframe)->frame, 4);
- if (fp == 0 && thisframe->pc < TEXT_SEGMENT_BASE)
+ if (thisframe->signal_handler_caller)
{
- /* If we are doing a backtrace from a signal handler, fp will be 0
- and thisframe->pc will be something like 0x3f88 or 0x2790. */
-
/* This was determined by experimentation on AIX 3.2. Perhaps
it corresponds to some offset in /usr/include/sys/user.h or
something like that. Using some system include file would
@@ -1114,6 +1093,9 @@ rs6000_frame_chain (thisframe)
#define SIG_FRAME_FP_OFFSET 284
fp = read_memory_integer (thisframe->frame + SIG_FRAME_FP_OFFSET, 4);
}
+ else
+ fp = read_memory_integer ((thisframe)->frame, 4);
+
return fp;
}
diff --git a/gdb/stack.c b/gdb/stack.c
index b5f965e..3d3d135 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -152,6 +152,15 @@ print_frame_info (fi, level, source, args)
printf_filtered ("<function called from gdb>\n");
return;
}
+ if (fi->signal_handler_caller)
+ {
+ /* Do this regardless of SOURCE because we don't have any source
+ to list for this frame. */
+ if (level >= 0)
+ printf_filtered ("#%-2d ", level);
+ printf_filtered ("<signal handler called>\n");
+ return;
+ }
sal = find_pc_line (fi->pc, fi->next_frame);
func = find_pc_function (fi->pc);