[PATCH] Fix PCH failures on SPARC

[Eric Botcazou]

> Hi Eric,

Hi Dave,

> I believe that your patch causes some difficulty with the .stabs output
> on PA ports using som.h.  Here is an example of an incorrect .stabs
> line.  It causes 20011119-1.c to fail.
>
>         .stabs  "*xxx:F1",36,0,3,xxx
> 	.EXPORT xxx,ENTRY,PRIV_LEV=3,RTNVAL=GR
> 	.stabn 68,0,0,0
> xxx
> 	.PROC
> 	.CALLINFO FRAME=0,CALLS,SAVE_RP
> 	.ENTRY
> 	.stabn 68,0,3,L$M2-*xxx
>
> The last line causes an assembler error:
>
> /var/tmp//ccvFw2Ty.s: Assembler messages:
> /var/tmp//ccvFw2Ty.s:47: Error: bad expression
> /var/tmp//ccvFw2Ty.s:47: Warning: rest of line ignored; first ignored
> character is `x'

How can the patch produce such a problem?

Index: config/pa/som.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/pa/som.h,v
retrieving revision 1.41
retrieving revision 1.42
diff -u -r1.41 -r1.42
--- config/pa/som.h     16 Jan 2003 00:34:43 -0000      1.41
+++ config/pa/som.h     17 Jun 2003 08:06:57 -0000      1.42
@@ -30,18 +30,17 @@
 /* We make the first line stab special to avoid adding several
    gross hacks to GAS.  */
 #undef  ASM_OUTPUT_SOURCE_LINE
-#define ASM_OUTPUT_SOURCE_LINE(file, line)             \
-  { static int sym_lineno = 1;                         \
-    static tree last_function_decl = NULL;             \
+#define ASM_OUTPUT_SOURCE_LINE(file, line, counter)    \
+  { static tree last_function_decl = NULL;             \
     if (current_function_decl == last_function_decl)   \
       fprintf (file, "\t.stabn 68,0,%d,L$M%d-%s\nL$M%d:\n",    \
-              line, sym_lineno,                        \
+              line, counter,                   \
               XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0) + 1, \
-              sym_lineno);                             \
+              counter);                                \
     else                                               \
       fprintf (file, "\t.stabn 68,0,%d,0\n", line);    \
     last_function_decl = current_function_decl;                \
-    sym_lineno += 1; }
+  }

 /* gdb needs a null N_SO at the end of each file for scattered loading.  */


-- 
Eric Botcazou