Add code to print rs6000 specific info in .s file; make eabi.asm assemble on Solaris

From-SVN: r12123

gcc/config/rs6000/eabi.asm

@@ -105,10 +105,18 @@
 	.long	0
 
 	.text
+#ifdef _RELOCATABLE
 .Lptr:
 	.long	.LCTOC1-.Laddr			/* PC relative pointer to .got2 */
+#endif
 
 FUNC_START(__eabi)
+
+/* Eliminate -mrelocatable code if not -mrelocatable, so that this file can
+   be assembled with other assemblers than GAS, such as the Solaris PowerPC
+   assembler.  */
+
+#ifdef _RELOCATABLE
 	mflr	0
 	bl	.Laddr				/* get current address */
 .Laddr:
@@ -120,6 +128,13 @@ FUNC_START(__eabi)
 	subf.	12,12,11			/* calculate difference */
 	mtlr	0				/* restore link register */
 	lwzx	9,10,12				/* done flag */
+
+#else /* !-mrelocatable */
+	addis	11,0,.LCTOC1@ha			/* load address of .LCTOC1 */
+	addi	11,11,.LCTOC1@l
+	lwz	10,.Linit(11)			/* init flag */
+#endif /* !-mrelocatable */
+
 	cmplwi	2,9,0				/* init flag != 0? */
 	bnelr	2				/* return now, if we've been called already */
 	stwx	1,10,12				/* store a non-zero value in the done flag */
@@ -145,9 +160,11 @@ FUNC_START(__eabi)
 	lwz	2,.Lsda2(11)			/* load r2 with _SDA2_BASE address */
 	b	FUNC_NAME(__do_global_ctors)	/* do any C++ global constructors (which returns to caller) */
 
+.Lreloc:
+
+#ifdef _RELOCATABLE
 /* We need to relocate the .got2 pointers.  Don't load registers 2 or 13 */
 
-.Lreloc:
 	lwz	3,.Lgot2s(11)			/* GOT pointers start */
 	lwz	4,.Lgot2e(11)			/* GOT pointers end */
 	add	3,12,3				/* adjust pointers */
@@ -237,6 +254,7 @@ FUNC_START(__eabi)
 	addi	3,3,4				/* bump to next word */
 	cmpw	1,3,4				/* more pointers to adjust? */
 	bc	4,6,.Lfloop
+#endif /* _RELOCATABLE */
 
 /* Done adjusting pointers, return */
 

gcc/config/rs6000/rs6000.c

@@ -296,6 +296,55 @@ rs6000_override_options (default_cpu)
 #endif
 }
 
+/* Do anything needed at the start of the asm file.  */
+
+void
+rs6000_file_start (file, default_cpu)
+     FILE *file;
+     char *default_cpu;
+{
+  int i;
+  char buffer[80];
+  char *start = buffer;
+  struct rs6000_cpu_select *ptr;
+
+  if (flag_verbose_asm)
+    {
+      sprintf (buffer, "\n%s rs6000/powerpc options:", ASM_COMMENT_START);
+      rs6000_select[0].string = default_cpu;
+
+      for (i = 0; i < sizeof (rs6000_select) / sizeof (rs6000_select[0]); i++)
+	{
+	  ptr = &rs6000_select[i];
+	  if (ptr->string != (char *)0 && ptr->string[0] != '\0')
+	    {
+	      fprintf (file, "%s %s%s", start, ptr->name, ptr->string);
+	      start = "";
+	    }
+	}
+
+#ifdef USING_SVR4_H
+      switch (rs6000_sdata)
+	{
+	case SDATA_NONE: fprintf (file, "%s -msdata=none", start); start = ""; break;
+	case SDATA_DATA: fprintf (file, "%s -msdata=data", start); start = ""; break;
+	case SDATA_SYSV: fprintf (file, "%s -msdata=sysv", start); start = ""; break;
+	case SDATA_EABI: fprintf (file, "%s -msdata=eabi", start); start = ""; break;
+	}
+
+      if (rs6000_sdata && g_switch_value)
+	{
+	  fprintf (file, "%s -G %d", start, g_switch_value);
+	  start = "";
+	}
+#endif
+
+      if (*start == '\0')
+	fputs ("\n", file);
+    }
+}
+
+
 /* Create a CONST_DOUBLE from a string.  */
 
 struct rtx_def *

gcc/config/rs6000/rs6000.h

@@ -2244,6 +2244,7 @@ extern int rs6000_trunc_used;
   text_section ();						\
   if (profile_flag)						\
     fputs ("\t.extern .mcount\n", FILE);			\
+  rs6000_file_start (FILE, TARGET_CPU_DEFAULT);			\
 }
 
 /* Output at end of assembler file.
@@ -3012,6 +3013,7 @@ extern int flag_expensive_optimizations;
 /* Declare functions in rs6000.c */
 extern void output_options ();
 extern void rs6000_override_options ();
+extern void rs6000_file_start ();
 extern struct rtx_def *rs6000_float_const ();
 extern struct rtx_def *rs6000_immed_double_const ();
 extern int direct_return ();

gcc/config/rs6000/sysv4.h

@@ -691,6 +691,7 @@ do {									\
 #define ASM_FILE_START(FILE)						\
 do {									\
   output_file_directive ((FILE), main_input_filename);			\
+  rs6000_file_start (FILE, TARGET_CPU_DEFAULT);				\
 } while (0)
 
 
@@ -919,7 +920,7 @@ do {									\
 
 #undef	CPP_SYSV_SPEC
 #define CPP_SYSV_SPEC \
-"%{mrelocatable: -D_RELOCATABLE} \
+"%{mrelocatable*: -D_RELOCATABLE} \
 %{mcall-sysv: -D_CALL_SYSV} %{mcall-nt: -D_CALL_NT} \
 %{mcall-aix: -D_CALL_AIX} %{mcall-aixdesc: -D_CALL_AIX -D_CALL_AIXDESC} \
 %{!mcall-sysv: %{!mcall-aix: %{!mcall-aixdesc: %{!mcall-nt: %(cpp_sysv_default) }}}} \

gcc/config/rs6000/win-nt.h

@@ -177,23 +177,12 @@ do {									\
 
 /* Stuff to force fit us into the Motorola PPC assembler */
 
-#if 0
-#undef ASM_FILE_START
-#define ASM_FILE_START(FILE)					\
-{								\
-  output_file_directive (FILE, main_input_filename);		\
-  fprintf (FILE, "\n#\tDirective section\n");                   \
-  fprintf (FILE, "\t.section\t.drectve,\"iR\"\n");              \
-  fprintf (FILE, "\t.byte\t\"-defaultlib:LIBC\" \n");           \
-  fprintf (FILE, "\t.previous\n\n");                              \
-}
-#endif
-
-#undef ASM_FILE_START
-#define ASM_FILE_START(FILE)					\
-do {								\
-  output_file_directive ((FILE), main_input_filename);		\
-  data_section ();						\
+#undef ASM_FILE_START							\
+#define ASM_FILE_START(FILE)						\
+do {									\
+  output_file_directive ((FILE), main_input_filename);			\
+  rs6000_file_start (FILE, TARGET_CPU_DEFAULT);				\
+  data_section ();							\
 } while (0)
 
 #undef ASM_FILE_END