2000-07-21 Michael Snyder <msnyder@cleaver.cygnus.com>

      * config/i386/tm-i386.h: treat PC and FP as unsigned.
      (SAVED_PC_AFTER_CALL): Use read_memory_unsigned_integer.
      (FRAME_SAVED_PC): Ditto.
      (FRAME_CHAIN): Ditto.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1bb70e9f0a8f354b1c3d854467dc685d02471985..612c26c392819bd1c21a541af76a028f58971e95 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2000-07-21  Michael Snyder  <msnyder@cleaver.cygnus.com>
+
+       * config/i386/tm-i386.h: treat PC and FP as unsigned.
+       (SAVED_PC_AFTER_CALL): Use read_memory_unsigned_integer.
+       (FRAME_SAVED_PC): Ditto.
+       (FRAME_CHAIN): Ditto.
+
 2000-07-20  Michael Snyder  <msnyder@cleaver.cygnus.com>
 
        * valarith.c (value_sub): Call check_typedef.

diff --git a/gdb/config/i386/tm-i386.h b/gdb/config/i386/tm-i386.h
index 3507d822ef53c3021773adc16667d7f7ce0ec533..2f18086418137198e53c0c7324ac98971f67719a 100644 (file)
--- a/gdb/config/i386/tm-i386.h
+++ b/gdb/config/i386/tm-i386.h
@@ -69,7 +69,8 @@ extern int i386_skip_prologue (int);
    through the frames for this because on some machines the new frame is not
    set up until the new function executes some instructions.  */
 
-#define SAVED_PC_AFTER_CALL(frame) (read_memory_integer (read_register (SP_REGNUM), 4))
+#define SAVED_PC_AFTER_CALL(frame) \
+     (read_memory_unsigned_integer (read_register (SP_REGNUM), 4))
 
 /* Stack grows downward.  */
 
@@ -327,7 +328,7 @@ extern void i386_extract_return_value (struct type *type, char *regbuf,
   ((thisframe)->signal_handler_caller \
    ? (thisframe)->frame \
    : (!inside_entry_file ((thisframe)->pc) \
-      ? read_memory_integer ((thisframe)->frame, 4) \
+      ? read_memory_unsigned_integer ((thisframe)->frame, 4) \
       : 0))
 
 /* A macro that tells us whether the function invocation represented
@@ -342,7 +343,7 @@ extern void i386_extract_return_value (struct type *type, char *regbuf,
 #define FRAME_SAVED_PC(FRAME) \
   (((FRAME)->signal_handler_caller \
     ? sigtramp_saved_pc (FRAME) \
-    : read_memory_integer ((FRAME)->frame + 4, 4)) \
+    : read_memory_unsigned_integer ((FRAME)->frame + 4, 4)) \
    )
 
 extern CORE_ADDR sigtramp_saved_pc (struct frame_info *);