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| author | Jan Beulich <jbeulich@suse.com> | 2021-12-21 09:30:03 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2021-12-21 09:30:03 +0100 |
| commit | ca988435c6138887721d705931abdecd4044f934 (patch) | |
| tree | c1e5d052cbf0878a6c242bf296961ebfedcafad7 /gas/config | |
| parent | 5ab88688f0651c6eafbbd8071888d2c213368c86 (diff) | |
| download | gdb-ca988435c6138887721d705931abdecd4044f934.zip gdb-ca988435c6138887721d705931abdecd4044f934.tar.gz gdb-ca988435c6138887721d705931abdecd4044f934.tar.bz2 | |
gas/ELF: avoid below-base ref in obj_elf_parse_section_letters()
We would better be prepared for 'm' being the first character of the
incoming string.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/obj-elf.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c index a6087a2..3a9835a 100644 --- a/gas/config/obj-elf.c +++ b/gas/config/obj-elf.c @@ -860,6 +860,17 @@ obj_elf_parse_section_letters (char *str, size_t len, { case 'a': attr |= SHF_ALLOC; + /* Compatibility. */ + if (len > 1 && str[1] == 'm') + { + attr |= SHF_MERGE; + str++, len--; + if (len > 1 && str[1] == 's') + { + attr |= SHF_STRINGS; + str++, len--; + } + } break; case 'e': attr |= SHF_EXCLUDE; @@ -894,19 +905,6 @@ obj_elf_parse_section_letters (char *str, size_t len, case '?': *is_clone = true; break; - /* Compatibility. */ - case 'm': - if (*(str - 1) == 'a') - { - attr |= SHF_MERGE; - if (len > 1 && str[1] == 's') - { - attr |= SHF_STRINGS; - str++, len--; - } - break; - } - /* Fall through. */ default: { const char *bad_msg = _("unrecognized .section attribute:" |