From 8e2ab18b874d1fda06243ad00209d44e2992928a Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mark@klomp.org>
Date: Sun, 12 Feb 2017 21:51:34 +0100
Subject: [PATCH 1/2] libasm: Fix one GCC7 -Wformat-truncation=2 warning.

Make sure that if we have really lots of labels the tempsym doesn't get
truncated because it is too small to hold the whole name.

This doesn't enable -Wformat-truncation=2 or fix other "issues" pointed
out by enabling this warning because there are currently some issues
with it. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79448

Signed-off-by: Mark Wielaard <mark@klomp.org>

Upstream-Status: Backport (https://sourceware.org/git/?p=elfutils.git;a=commit;h=93c51144c3f664d4e9709da75a1d0fa00ea0fe95)
Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
---
 libasm/asm_newsym.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libasm/asm_newsym.c b/libasm/asm_newsym.c
index 7f522910..76482bb2 100644
--- a/libasm/asm_newsym.c
+++ b/libasm/asm_newsym.c
@@ -1,5 +1,5 @@
 /* Define new symbol for current position in given section.
-   Copyright (C) 2002, 2005 Red Hat, Inc.
+   Copyright (C) 2002, 2005, 2017 Red Hat, Inc.
    This file is part of elfutils.
    Written by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -44,7 +44,9 @@ AsmSym_t *
 asm_newsym (AsmScn_t *asmscn, const char *name, GElf_Xword size,
 	    int type, int binding)
 {
-#define TEMPSYMLEN 10
+/* We don't really expect labels with many digits, but in theory it could
+   be 10 digits (plus ".L" and a zero terminator).  */
+#define TEMPSYMLEN 13
   char tempsym[TEMPSYMLEN];
   AsmSym_t *result;
 
-- 
2.13.0

