From: Georg-Johann Lay <avr@gjlay.de>
Date: Wed, 22 Feb 2012 14:13:48 +0000 (+0000)
Subject: re PR target/18145 (Do not emit __do_copy_data or __do_clear_bss if .data or .bss... 
X-Git-Tag: releases/gcc-4.7.0~246
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=219db888b5adc949d931397a3fdabdfbd6fbfc62;p=thirdparty%2Fgcc.git

re PR target/18145 (Do not emit __do_copy_data or __do_clear_bss if .data or .bss is empty.)

	PR target/18145
	* config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
	setting avr_need_clear_bss_p for __gnu_lto* symbols.

From-SVN: r184481
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 295ce0e14699..70b924b62f25 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
+
+	PR target/18145
+	* config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
+	setting avr_need_clear_bss_p for __gnu_lto* symbols.
+
 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
 
 	* config/avr/avr.h (avr_accumulate_outgoing_args): Return int.
diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
index 9a285e3cdcee..d4cfaef0ca0e 100644
--- a/gcc/config/avr/avr.c
+++ b/gcc/config/avr/avr.c
@@ -7245,7 +7245,11 @@ avr_asm_output_aligned_decl_common (FILE * stream,
                                     unsigned HOST_WIDE_INT size,
                                     unsigned int align, bool local_p)
 {
-  avr_need_clear_bss_p = true;
+  /* __gnu_lto_v1 etc. are just markers for the linker injected by toplev.c.
+     There is no need to trigger __do_clear_bss code for them.  */
+
+  if (!STR_PREFIX_P (name, "__gnu_lto"))
+    avr_need_clear_bss_p = true;
 
   if (local_p)
     ASM_OUTPUT_ALIGNED_LOCAL (stream, name, size, align);