From: Mark Wielaard <mjw@redhat.com>
Date: Fri, 25 Mar 2011 09:35:41 +0000 (+0000)
Subject: re PR debug/48041 (dwarf2out emits unnecessary null byte in empty .debug_abbrev section)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2a5ac39a3efd80d5380c1ae20dbbac2c19878f9e;p=gcc.git

re PR debug/48041 (dwarf2out emits unnecessary null byte in empty .debug_abbrev section)

PR debug/48041
* dwarf2out.c (output_abbrev_section): Only write table when
abbrev_die_table_in_use > 1.

From-SVN: r171441
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0ba43047d8b..05877e1ee8c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-03-24  Mark Wielaard  <mjw@redhat.com>
+
+	PR debug/48041
+	* dwarf2out.c (output_abbrev_section): Only write table when
+	abbrev_die_table_in_use > 1.
+
 2011-02-24  Richard Henderson  <rth@redhat.com>
 
 	* config/alpha/alpha.c (alpha_expand_unaligned_load): Use extql.
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index aa6f6b6b9cf..06dcf9c79d1 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -11056,6 +11056,9 @@ output_abbrev_section (void)
 {
   unsigned long abbrev_id;
 
+  if (abbrev_die_table_in_use == 1)
+    return;
+
   for (abbrev_id = 1; abbrev_id < abbrev_die_table_in_use; ++abbrev_id)
     {
       dw_die_ref abbrev = abbrev_die_table[abbrev_id];