1 Upstream-Status: Backport
3 nm: Fix size passed to snprintf for invalid sh_name case.
4 native build failed as following on Fedora18:
5 nm.c: In function 'show_symbols_sysv':
6 nm.c:756:27: error: argument to 'sizeof' in 'snprintf' call is the same expression as the destination; did you mean to provide an explicit length? [-Werror=sizeof-pointer-memaccess]
7 snprintf (name, sizeof name, "[invalid sh_name %#" PRIx32 "]",
10 The original commit is http://git.fedorahosted.org/cgit/elfutils.git/commit/src/nm.c?id=57bd66cabf6e6b9ecf622cdbf350804897a8df58
12 Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
14 --- elfutils-0.148/src/nm.c.org 2013-03-11 22:36:11.000000000 -0500
15 +++ elfutils-0.148/src/nm.c 2013-03-11 22:46:09.000000000 -0500
17 gelf_getshdr (scn, &shdr_mem)->sh_name);
18 if (unlikely (name == NULL))
20 - name = alloca (sizeof "[invalid sh_name 0x12345678]");
21 - snprintf (name, sizeof name, "[invalid sh_name %#" PRIx32 "]",
22 + const size_t bufsz = sizeof "[invalid sh_name 0x12345678]";
23 + name = alloca (bufsz);
24 + snprintf (name, bufsz, "[invalid sh_name %#" PRIx32 "]",
25 gelf_getshdr (scn, &shdr_mem)->sh_name);
27 scnnames[elf_ndxscn (scn)] = name;