rs6000.h (read_only_data_section, [...]): Align CSECT on doubleword boundary for 64-bit target.

	* rs6000.h (read_only_data_section, private_data_section,
	read_only_private_data_section, toc_section): Align CSECT on
	doubleword boundary for 64-bit target.
	(DATA_SECTION_ASM_OP): Likewise.
	* rs6000.c (rs6000_stack_info): Leaf procedure stack limit is 288.

From-SVN: r26678

gcc/ChangeLog

+Tue Apr 27 15:33:42 1999  David Edelsohn  <edelsohn@gnu.org>
+
+	* rs6000.h (read_only_data_section, private_data_section,
+	read_only_private_data_section, toc_section): Align CSECT on
+	doubleword boundary for 64-bit target.
+	(DATA_SECTION_ASM_OP): Likewise.
+	* rs6000.c (rs6000_stack_info): Leaf procedure stack limit is 288.
+
 Tue Apr 27 20:19:47 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
 
 	* sh.md (insv): Use copy_addr_to_reg.

gcc/config/rs6000/rs6000.c

@@ -308,7 +308,7 @@ rs6000_override_options (default_cpu)
      little endian mode, and causes an alignment trap.  The 750 does not cause
      an alignment trap (except when the target is unaligned).  */
 
-  if (!BYTES_BIG_ENDIAN && rs6000_cpu != PROCESSOR_PPC750)
+  if (! BYTES_BIG_ENDIAN && rs6000_cpu != PROCESSOR_PPC750)
     {
       if (TARGET_MULTIPLE)
 	{
@@ -335,11 +335,11 @@ rs6000_override_options (default_cpu)
   /* Set debug flags */
   if (rs6000_debug_name)
     {
-      if (!strcmp (rs6000_debug_name, "all"))
+      if (! strcmp (rs6000_debug_name, "all"))
 	rs6000_debug_stack = rs6000_debug_arg = 1;
-      else if (!strcmp (rs6000_debug_name, "stack"))
+      else if (! strcmp (rs6000_debug_name, "stack"))
 	rs6000_debug_stack = 1;
-      else if (!strcmp (rs6000_debug_name, "arg"))
+      else if (! strcmp (rs6000_debug_name, "arg"))
 	rs6000_debug_arg = 1;
       else
 	error ("Unknown -mdebug-%s switch", rs6000_debug_name);
@@ -349,7 +349,8 @@ rs6000_override_options (default_cpu)
   /* If the user desires alternate register names, copy in the alternate names
      now.  */
   if (TARGET_REGNAMES)
-    bcopy ((char *)alt_reg_names, (char *)rs6000_reg_names, sizeof (rs6000_reg_names));
+    bcopy ((char *)alt_reg_names, (char *)rs6000_reg_names,
+	   sizeof (rs6000_reg_names));
 #endif
 
 #ifdef SUBTARGET_OVERRIDE_OPTIONS
@@ -3607,7 +3608,7 @@ rs6000_stack_info ()
      the stack might be dynamically adjusted), if we are debugging, if we
      make calls, or if the sum of fp_save, gp_save, fpmem, and local variables
      are more than the space needed to save all non-volatile registers:
-     32-bit: 18*8 + 19*4 = 220 or 64-bit: 18*8 + 19*8 = 296
+     32-bit: 18*8 + 19*4 = 220 or 64-bit: 18*8 + 18*8 = 288 (GPR13 reserved).
 
      For V.4 we don't have the stack cushion that AIX uses, but assume that
      the debugger can handle stackless frames.  */
@@ -3624,7 +3625,7 @@ rs6000_stack_info ()
     info_ptr->push_p = (frame_pointer_needed
 			|| write_symbols != NO_DEBUG
 			|| ((total_raw_size - info_ptr->fixed_size)
-			    > (TARGET_32BIT ? 220 : 296)));
+			    > (TARGET_32BIT ? 220 : 288)));
 
   if (info_ptr->fpmem_p)
     {

gcc/config/rs6000/rs6000.h

@@ -2551,8 +2551,9 @@ read_only_data_section ()				\
 {							\
   if (in_section != read_only_data)			\
     {							\
-      fprintf (asm_out_file, ".csect %s[RO]\n",		\
-	       xcoff_read_only_section_name);		\
+      fprintf (asm_out_file, ".csect %s[RO]%s\n",	\
+	       xcoff_read_only_section_name,		\
+	       (TARGET_32BIT ? "" : ",3"));		\
       in_section = read_only_data;			\
     }							\
 }							\
@@ -2562,9 +2563,9 @@ private_data_section ()					\
 {							\
   if (in_section != private_data)			\
     {							\
-      fprintf (asm_out_file, ".csect %s[RW]\n",		\
-	       xcoff_private_data_section_name);	\
-							\
+      fprintf (asm_out_file, ".csect %s[RW]%s\n",	\
+	       xcoff_private_data_section_name,		\
+	       (TARGET_32BIT ? "" : ",3"));		\
       in_section = private_data;			\
     }							\
 }							\
@@ -2574,8 +2575,9 @@ read_only_private_data_section ()			\
 {							\
   if (in_section != read_only_private_data)		\
     {							\
-      fprintf (asm_out_file, ".csect %s[RO]\n",		\
-	       xcoff_private_data_section_name);	\
+      fprintf (asm_out_file, ".csect %s[RO]%s\n",	\
+	       xcoff_private_data_section_name,		\
+	       (TARGET_32BIT ? "" : ",3"));		\
       in_section = read_only_private_data;		\
     }							\
 }							\
@@ -2596,7 +2598,8 @@ toc_section ()						\
 	}						\
 							\
       if (in_section != toc)				\
-	fputs (".csect toc_table[RW]\n", asm_out_file); \
+	fprintf (asm_out_file, ".csect toc_table[RW]%s\n",	\
+		 (TARGET_32BIT ? "" : ",3"));		\
     }							\
   else							\
     {							\
@@ -2809,7 +2812,8 @@ extern int toc_initialized;
 
 /* Output before writable data.  */
 
-#define DATA_SECTION_ASM_OP ".csect .data[RW]"
+#define DATA_SECTION_ASM_OP (TARGET_32BIT \
+			     ? ".csect .data[RW]" : ".csect .data[RW],3")
 
 /* How to refer to registers in assembler output.
    This sequence is indexed by compiler's hard-register-number (see above).  */