* i386-tdep.c (i386_sigtramp_frame_p): Only handle frames if we

have a sigcontext_addr handler.
* x86-64-tdep.c (x86_64_sigtramp_frame_p): Assert that we have a
sigcontext_addr handler.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e00935d..94080f7 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2003-05-31  Mark Kettenis  <kettenis@gnu.org>
+
+       * i386-tdep.c (i386_sigtramp_frame_p): Only handle frames if we
+       have a sigcontext_addr handler.
+       * x86-64-tdep.c (x86_64_sigtramp_frame_p): Assert that we have a
+       sigcontext_addr handler.
+
 2003-05-31  Andrew Cagney  <cagney@redhat.com>
 
        * mips-tdep.c (print_gp_register_row): Replace do_gp_register_row.

diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 1cbe043..c03df8e 100644 (file)
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -930,6 +930,11 @@ i386_sigtramp_frame_p (CORE_ADDR pc)
 {
   char *name;
 
+  /* We shouldn't even bother to try if the OSABI didn't register
+     a sigcontext_addr handler.  */
+  if (!gdbarch_tdep (current_gdbarch)->sigcontext_addr)
+    return NULL;
+
   find_pc_partial_function (pc, &name, NULL, NULL);
   if (PC_IN_SIGTRAMP (pc, name))
     return &i386_sigtramp_frame_unwind;

diff --git a/gdb/x86-64-tdep.c b/gdb/x86-64-tdep.c
index 7bcabfd..a33d33a 100644 (file)
--- a/gdb/x86-64-tdep.c
+++ b/gdb/x86-64-tdep.c
@@ -1094,7 +1094,11 @@ x86_64_sigtramp_frame_p (CORE_ADDR pc)
 
   find_pc_partial_function (pc, &name, NULL, NULL);
   if (PC_IN_SIGTRAMP (pc, name))
-    return &x86_64_sigtramp_frame_unwind;
+    {
+      gdb_assert (gdbarch_tdep (current_gdbarch)->sigcontext_addr);
+
+      return &x86_64_sigtramp_frame_unwind;
+    }
 
   return NULL;
 }