strlen() will get string length excluding '\0', but strcpy() will append
'\0' in the end, so need XNEWVEC additional byte, or cause memory over
flow.

Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
---
 gcc/gcc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/gcc.c b/gcc/gcc.c
index 6cd08ea..8ea46ec 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -4895,7 +4895,7 @@ do_spec_1 (const char *spec, int inswitch, const char 
*soft_matched_part)
                      {
                        saved_suffix
                          = XNEWVEC (char, suffix_length
-                                    + strlen (TARGET_OBJECT_SUFFIX));
+                                    + strlen (TARGET_OBJECT_SUFFIX) + 1);
                        strncpy (saved_suffix, suffix, suffix_length);
                        strcpy (saved_suffix + suffix_length,
                                TARGET_OBJECT_SUFFIX);
-- 
1.7.11.7

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