* osabi.c (gdb_osabi_name): Add entry for GDB_OSABI_INTERIX.

[deliverable/binutils-gdb.git] / gdb / findvar.c

diff --git a/gdb/findvar.c b/gdb/findvar.c
index 1faaa905113f3e77dc63f33c451827e62ce84484..d2591321d75dfb7958d9f29cd27c001c78e91e4c 100644 (file)
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -47,12 +47,12 @@ you lose
 #endif
 
 LONGEST
-extract_signed_integer (void *addr, int len)
+extract_signed_integer (const void *addr, int len)
 {
   LONGEST retval;
-  unsigned char *p;
-  unsigned char *startaddr = (unsigned char *) addr;
-  unsigned char *endaddr = startaddr + len;
+  const unsigned char *p;
+  const unsigned char *startaddr = addr;
+  const unsigned char *endaddr = startaddr + len;
 
   if (len > (int) sizeof (LONGEST))
     error ("\
@@ -81,12 +81,12 @@ That operation is not available on integers of more than %d bytes.",
 }
 
 ULONGEST
-extract_unsigned_integer (void *addr, int len)
+extract_unsigned_integer (const void *addr, int len)
 {
   ULONGEST retval;
-  unsigned char *p;
-  unsigned char *startaddr = (unsigned char *) addr;
-  unsigned char *endaddr = startaddr + len;
+  const unsigned char *p;
+  const unsigned char *startaddr = addr;
+  const unsigned char *endaddr = startaddr + len;
 
   if (len > (int) sizeof (ULONGEST))
     error ("\
@@ -308,6 +308,13 @@ value_of_register (int regnum, struct frame_info *frame)
   get_saved_register (raw_buffer, &optim, &addr,
                      frame, regnum, &lval);
 
+  /* FIXME: cagney/2002-05-15: This test is just bogus.
+
+     It indicates that the target failed to supply a value for a
+     register because it was "not available" at this time.  Problem
+     is, the target still has the register and so get saved_register()
+     may be returning a value saved on the stack.  */
+
   if (register_cached (regnum) < 0)
     return NULL;               /* register value not available */