PATCH: PR gas/12409: --compress-debug-sections doesn't work on empty DWARF sections

[Alan Modra]

On Tue, Jan 18, 2011 at 10:57:33AM -0800, H.J. Lu wrote:
> We shouldn't compress empty DWARF sections.  I checked in this patch as
> an obvious fix.
[snip]
> 	PR gas/12409
> 	* gas/elf/dwarf2-4.d: New.
> 	* gas/elf/dwarf2-4.s: Likewise.

Breaks on arm.

	* gas/elf/dwarf2-4.s: Don't use @.

Index: gas/testsuite/gas/elf/dwarf2-4.s
===================================================================
RCS file: /cvs/src/src/gas/testsuite/gas/elf/dwarf2-4.s,v
retrieving revision 1.1
diff -u -p -r1.1 dwarf2-4.s
--- gas/testsuite/gas/elf/dwarf2-4.s	18 Jan 2011 18:55:59 -0000	1.1
+++ gas/testsuite/gas/elf/dwarf2-4.s	10 Feb 2011 04:00:02 -0000
@@ -1,9 +1,9 @@
 	.file	"__dn_comp.c"
-	.section	.debug_abbrev,"",@progbits
+	.section	.debug_abbrev,"",%progbits
 .Ldebug_abbrev0:
-	.section	.debug_info,"",@progbits
+	.section	.debug_info,"",%progbits
 .Ldebug_info0:
-	.section	.debug_line,"",@progbits
+	.section	.debug_line,"",%progbits
 .Ldebug_line0:
 	.text
 .Ltext0:


-- 
Alan Modra
Australia Development Lab, IBM