* Makefile.am (libbfd.h): Add "Extracted from.." comment.

[deliverable/binutils-gdb.git] / gdb / s390-tdep.c

diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index 41da9a45ae4cb6f3d3672feceb97f84719c481cf..c69aca69fa3e92655b61d099936d290cdd71b1fe 100644 (file)
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -1,5 +1,7 @@
 /* Target-dependent code for GDB, the GNU debugger.
-   Copyright 2001 Free Software Foundation, Inc.
+
+   Copyright 2001, 2002 Free Software Foundation, Inc.
+
    Contributed by D.J. Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
    for IBM Deutschland Entwicklung GmbH, IBM Corporation.
 
@@ -1007,9 +1009,7 @@ s390_frame_chain (struct frame_info *thisframe)
 {
   CORE_ADDR prev_fp = 0;
 
-  if (thisframe->prev && thisframe->prev->frame)
-    prev_fp = thisframe->prev->frame;
-  else if (generic_find_dummy_frame (thisframe->pc, thisframe->frame))
+  if (generic_find_dummy_frame (thisframe->pc, thisframe->frame))
     return generic_read_register_dummy (thisframe->pc, thisframe->frame,
                                         S390_SP_REGNUM);
   else
@@ -1210,13 +1210,6 @@ s390_read_fp ()
 }
 
 
-void
-s390_write_fp (CORE_ADDR val)
-{
-  write_register (s390_fp_regnum (), val);
-}
-
-
 static void
 s390_pop_frame_regular (struct frame_info *frame)
 {
@@ -1354,7 +1347,7 @@ is_float_like (struct type *type)
 
 /* Return non-zero if TYPE is considered a `DOUBLE_OR_FLOAT', as
    defined by the parameter passing conventions described in the
-   "Linux for S/390 ELF Application Binary Interface Supplement".
+   "GNU/Linux for S/390 ELF Application Binary Interface Supplement".
    Otherwise, return zero.  */
 static int
 is_double_or_float (struct type *type)
@@ -1366,8 +1359,9 @@ is_double_or_float (struct type *type)
 
 
 /* Return non-zero if TYPE is considered a `SIMPLE_ARG', as defined by
-   the parameter passing conventions described in the "Linux for S/390
-   ELF Application Binary Interface Supplement".  Return zero otherwise.  */
+   the parameter passing conventions described in the "GNU/Linux for
+   S/390 ELF Application Binary Interface Supplement".  Return zero
+   otherwise.  */
 static int
 is_simple_arg (struct type *type)
 {
@@ -1415,8 +1409,9 @@ extend_simple_arg (struct value *arg)
 
 
 /* Return non-zero if TYPE is a `DOUBLE_ARG', as defined by the
-   parameter passing conventions described in the "Linux for S/390 ELF
-   Application Binary Interface Supplement".  Return zero otherwise.  */
+   parameter passing conventions described in the "GNU/Linux for S/390
+   ELF Application Binary Interface Supplement".  Return zero
+   otherwise.  */
 static int
 is_double_arg (struct type *type)
 {
@@ -1487,8 +1482,8 @@ alignment_of (struct type *type)
 
 
 /* Put the actual parameter values pointed to by ARGS[0..NARGS-1] in
-   place to be passed to a function, as specified by the "Linux for
-   S/390 ELF Application Binary Interface Supplement".
+   place to be passed to a function, as specified by the "GNU/Linux
+   for S/390 ELF Application Binary Interface Supplement".
 
    SP is the current stack pointer.  We must put arguments, links,
    padding, etc. whereever they belong, and return the new stack
@@ -1703,7 +1698,7 @@ s390_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
 
 
 
-static unsigned char *
+const static unsigned char *
 s390_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
 {
   static unsigned char breakpoint[] = { 0x0, 0x1 };
@@ -1797,7 +1792,6 @@ s390_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_init_extra_frame_info (gdbarch, s390_init_extra_frame_info);
   set_gdbarch_init_frame_pc_first (gdbarch, s390_init_frame_pc_first);
   set_gdbarch_read_fp (gdbarch, s390_read_fp);
-  set_gdbarch_write_fp (gdbarch, s390_write_fp);
   /* This function that tells us whether the function invocation represented
      by FI does not have a frame on the stack associated with it.  If it
      does not, FRAMELESS is set to 1, else 0.  */