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Optimize test for valid ELF symbol types in lookup function.

This commit is contained in:
Ulrich Drepper 2009-07-06 06:55:57 -07:00
parent 2123d5815e
commit a38862a589
2 changed files with 11 additions and 7 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2009-07-06 Ulrich Drepper <drepper@redhat.com>
* elf/do-lookup.h (ALLOWED_STT): Optimize test for valid symbol types.
2009-07-03 Andreas Schwab <aschwab@redhat.com>
* sysdeps/powerpc/sysdep.h (PPC_FEATURE_ARCH_2_06): Fix value.

14
elf/do-lookup.h
View File

@ -87,13 +87,13 @@ do_lookup_x (const char *undef_name, uint_fast32_t new_hash,
0))
return NULL;
if (__builtin_expect (stt > STT_FUNC
&& stt != STT_COMMON
&& stt != STT_TLS
&& stt != STT_GNU_IFUNC, 0))
/* Ignore all but STT_NOTYPE, STT_OBJECT, STT_FUNC, STT_COMMON,
STT_TLS, and STT_GNU_IFUNC since these are no code/data
definitions. */
/* Ignore all but STT_NOTYPE, STT_OBJECT, STT_FUNC,
STT_COMMON, STT_TLS, and STT_GNU_IFUNC since these are no
code/data definitions. */
#define ALLOWED_STT \
((1 << STT_NOTYPE) | (1 << STT_OBJECT) | (1 << STT_FUNC) \
| (1 << STT_COMMON) | (1 << STT_TLS) | (1 << STT_GNU_IFUNC))
if (__builtin_expect (((1 << stt) & ALLOWED_STT) == 0, 0))
return NULL;
if (sym != ref && strcmp (strtab + sym->st_name, undef_name))