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| author | David S. Miller <davem@davemloft.net> | 2012-04-05 05:20:37 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-05 05:20:37 -0400 |
| commit | ff9f1c5f324eb53adc23bfb80f3c932760c94149 (patch) | |
| tree | 73afa06f8bb7a0f5268e7aeb8be0a60b0278ab0a /elf/dl-lookup.c | |
| parent | e80d6f94e19d17b91e3cd3ada7193cc88f621feb (diff) | |
| download | glibc-ff9f1c5f324eb53adc23bfb80f3c932760c94149.tar.gz glibc-ff9f1c5f324eb53adc23bfb80f3c932760c94149.tar.xz glibc-ff9f1c5f324eb53adc23bfb80f3c932760c94149.zip | |
Fix DL_DEBUG_UNUSED to elide the VDSO and handle PLT references properly.
* elf/rtld.c (dl_main): If DL_DEBUG_UNUSED is enabled, turn off lazy binding. * elf/dl-lookup (_dl_lookup_symbol_x): If DL_DEBUG_UNUSED, ignore undefined symbol errors. * elf/rtlc.c (dl_main): Skip VDSO when checking for unused DT_NEEDED entries.
Diffstat (limited to 'elf/dl-lookup.c')
| -rw-r--r-- | elf/dl-lookup.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c index 839dd3a4fc..a2a699b48f 100644 --- a/elf/dl-lookup.c +++ b/elf/dl-lookup.c @@ -769,7 +769,8 @@ _dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map, if (__builtin_expect (current_value.s == NULL, 0)) { if ((*ref == NULL || ELFW(ST_BIND) ((*ref)->st_info) != STB_WEAK) - && skip_map == NULL) + && skip_map == NULL + && !(GLRO(dl_debug_mask) & DL_DEBUG_UNUSED)) { /* We could find no value for a strong reference. */ const char *reference_name = undef_map ? undef_map->l_name : ""; |