diff options
| author | Timo Teräs <timo.teras@iki.fi> | 2010-04-22 08:28:10 +0000 |
|---|---|---|
| committer | Austin Foxley <austinf@cetoncorp.com> | 2010-04-22 08:52:17 -0700 |
| commit | b93b98daf0dd45ac52f99fc4d906e5926cdd5239 (patch) | |
| tree | 66c617599c0d459a479adc70c33d93c0631fbd8c /ldso/include/dl-elf.h | |
| parent | dfedf78cc696bb51069ca591c3be8f05018d5be1 (diff) | |
ldso: support RTLD_NODELETE and DF_1_NODELETE
Honor the nodelete flags so we don't delete shared library if it's
sticky. This is useful for libpthread if it gets pulled in by a
dlopen'ed library.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'ldso/include/dl-elf.h')
| -rw-r--r-- | ldso/include/dl-elf.h | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h index 076678cfc..9c2888f5b 100644 --- a/ldso/include/dl-elf.h +++ b/ldso/include/dl-elf.h @@ -104,13 +104,15 @@ extern void _dl_protect_relro (struct elf_resolve *l); # define DT_GNU_HASH_IDX (DT_RELCONT_IDX + 1) #endif -extern void _dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], - void *debug_addr, DL_LOADADDR_TYPE load_off); +extern unsigned int _dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], + void *debug_addr, DL_LOADADDR_TYPE load_off); static __always_inline -void __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], - void *debug_addr, DL_LOADADDR_TYPE load_off) +unsigned int __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], + void *debug_addr, DL_LOADADDR_TYPE load_off) { + unsigned int rtld_flags = 0; + for (; dpnt->d_tag; dpnt++) { if (dpnt->d_tag < DT_NUM) { dynamic_info[dpnt->d_tag] = dpnt->d_un.d_val; @@ -138,9 +140,12 @@ void __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], } else if (dpnt->d_tag < DT_LOPROC) { if (dpnt->d_tag == DT_RELOCCOUNT) dynamic_info[DT_RELCONT_IDX] = dpnt->d_un.d_val; - if (dpnt->d_tag == DT_FLAGS_1 && - (dpnt->d_un.d_val & DF_1_NOW)) - dynamic_info[DT_BIND_NOW] = 1; + if (dpnt->d_tag == DT_FLAGS_1) { + if (dpnt->d_un.d_val & DF_1_NOW) + dynamic_info[DT_BIND_NOW] = 1; + if (dpnt->d_un.d_val & DF_1_NODELETE) + rtld_flags |= RTLD_NODELETE; + } #ifdef __LDSO_GNU_HASH_SUPPORT__ if (dpnt->d_tag == DT_GNU_HASH) dynamic_info[DT_GNU_HASH_IDX] = dpnt->d_un.d_ptr; @@ -167,6 +172,7 @@ void __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], ADJUST_DYN_INFO(DT_GNU_HASH_IDX, load_off); #endif #undef ADJUST_DYN_INFO + return rtld_flags; } /* Reloc type classes as returned by elf_machine_type_class(). |