cygming.h (ASM_OUTPUT_DWARF_OFFSET): Output 8 bytes when 8 bytes are requested.

* config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Output 8 bytes
when 8 bytes are requested.

From-SVN: r164684

gcc/ChangeLog

+2010-09-28  Richard Henderson  <rth@redhat.com>
+
+	* config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Output 8 bytes
+	when 8 bytes are requested.
+
 2010-09-28  Tristan Gingold  <gingold@adacore.com>
 
 	* config/avr/avr.c (expand_prologue): Set

gcc/config/i386/cygming.h

@@ -73,11 +73,25 @@ along with GCC; see the file COPYING3.  If not see
    won't allow it.  */
 #define ASM_OUTPUT_DWARF_OFFSET(FILE, SIZE, LABEL, SECTION)	\
   do {								\
-    if (SIZE != 4 && (!TARGET_64BIT || SIZE != 8))		\
-      abort ();							\
-								\
-    fputs ("\t.secrel32\t", FILE);				\
-    assemble_name (FILE, LABEL);				\
+    switch (SIZE)						\
+      {								\
+      case 4:							\
+	fputs ("\t.secrel32\t", FILE);				\
+	assemble_name (FILE, LABEL);				\
+	break;							\
+      case 8:							\
+	/* This is a hack.  There is no 64-bit section relative	\
+	   relocation.  However, the COFF format also does not	\
+	   support 64-bit file offsets; 64-bit applications are	\
+	   limited to 32-bits of code+data in any one module.	\
+	   Fake the 64-bit offset by zero-extending it.  */	\
+	fputs ("\t.secrel32\t", FILE);				\
+	assemble_name (FILE, LABEL);				\
+	fputs ("\n\t.long\t0", FILE);				\
+	break;							\
+      default:							\
+	gcc_unreachable ();					\
+      }								\
   } while (0)
 #endif