From: Stu Grossman <grossman@cygnus>
Date: Wed, 5 May 1993 22:39:23 +0000 (+0000)
Subject:         * Patches from Jeffrey Law <law@cs.utah.edu>.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4b01383bcd20363075b8923d7ad2c037aff665f3;p=binutils-gdb.git

    * Patches from Jeffrey Law <law@cs.utah.edu>.
	* gdb/hppa-tdep.c (frame_chain_valid): If "use_unwind" is true, then
	use unwind descriptors to determine if the frame chain is valid.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 94677c18279..a8b003b2612 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,6 +1,8 @@
 Wed May  5 15:16:33 1993  Stu Grossman  (grossman@cygnus.com)
 
         * Patches from Jeffrey Law <law@cs.utah.edu>.
+	* gdb/hppa-tdep.c (frame_chain_valid): If "use_unwind" is true, then
+	use unwind descriptors to determine if the frame chain is valid.
 	* gdb/hppa-tdep.c (find_dummy_frame_regs):  Rework so that
 	it does not assume %r4 is the frame pointer.
 	* gdb/hppa-pinsn.c (print_insn): Handle 'r' and 'R' for break, rsm,
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index ca2393886f2..2163ed5d8d1 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -437,13 +437,28 @@ frame_chain_valid (chain, thisframe)
   if (!chain)
     return 0;
 
-  msym = lookup_minimal_symbol_by_pc (FRAME_SAVED_PC (thisframe));
+  if (use_unwind)
+    {
 
-  if (msym
-      && (strcmp (SYMBOL_NAME (msym), "_start") == 0))
-    return 0;
+      struct unwind_table_entry *u;
+
+      u = find_unwind_entry (thisframe->pc);
+
+      if (u && (u->Save_SP || u->Total_frame_size))
+	return 1;
+      else
+	return 0;
+    }
   else
-    return 1;
+    {
+      msym = lookup_minimal_symbol_by_pc (FRAME_SAVED_PC (thisframe));
+
+      if (msym
+	  && (strcmp (SYMBOL_NAME (msym), "_start") == 0))
+	return 0;
+      else
+	return 1;
+    }
 }
 
 /*