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readelf(1) -S: Include zero index and match binutils' no-name

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Include the SHN_UNDEF (zero) index special section in extended-attribute
ELF files, like GNU binutils' readelf.

Additionally, print "<no-name>" for sections without names, like GNU
binutils.

Reviewed by:	kaiw@
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8707
This commit is contained in:
Conrad Meyer 2016-12-07 18:33:40 +00:00
parent 52b42f6287
commit 7dc45d65e3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=309679
1 changed files with 4 additions and 3 deletions
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7
contrib/elftoolchain/readelf/readelf.c
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@ -6557,13 +6557,14 @@ load_sections(struct readelf *re)
}
if ((name = elf_strptr(re->elf, shstrndx, sh.sh_name)) == NULL) {
(void) elf_errno();
name = "ERROR";
name = "<no-name>";
}
if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) {
if ((elferr = elf_errno()) != 0)
if ((elferr = elf_errno()) != 0) {
warnx("elf_ndxscn failed: %s",
elf_errmsg(elferr));
continue;
continue;
}
}
if (ndx >= re->shnum) {
warnx("section index of '%s' out of range", name);