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From 93c51144c3f664d4e9709da75a1d0fa00ea0fe95 Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mark@klomp.org>
Date: Sun, 12 Feb 2017 21:51:34 +0100
Subject: [PATCH] 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/ChangeLog | 6 +++++-
libasm/asm_newsym.c | 6 ++++--
2 files changed, 9 insertions(+), 3 deletions(-)
Index: elfutils-0.168/libasm/asm_newsym.c
===================================================================
--- elfutils-0.168.orig/libasm/asm_newsym.c
+++ elfutils-0.168/libasm/asm_newsym.c
@@ -1,5 +1,5 @@
/* Define new symbol for current position in given section.
- Copyright (C) 2002, 2005, 2016 Red Hat, Inc.
+ Copyright (C) 2002, 2005, 2016, 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;
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