From 95586b5663e51548e91fdbde34037886fb1eb07c Mon Sep 17 00:00:00 2001 From: Bernd Schmidt Date: Mon, 3 Dec 2007 22:54:16 +0000 Subject: Blackfin FD-PIC patch 3/6. Change _dl_find_hash to _dl_lookup_hash, as on the NPTL branch. _dl_find_hash is now a wrapper function around it; unlike on the NPTL branch, it retains the old interface so that not all callers need to be changed. _dl_lookup_hash can optionally give its caller a pointer to the module where the symbol was found. Introduce ELF_RTYPE_CLASS_DLSYM for lookups from libdl. Spelling fixes in the Blackfin port, since Alex Oliva's original version of these patches used _dl_find_hash_mod as the name of the function rather than _dl_lookup_hash. --- ldso/include/dl-elf.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'ldso/include/dl-elf.h') diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h index 3e418622d..320a0f920 100644 --- a/ldso/include/dl-elf.h +++ b/ldso/include/dl-elf.h @@ -183,6 +183,11 @@ void __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], #endif #define ELF_RTYPE_CLASS_PLT (0x1) +/* dlsym() calls _dl_find_hash with this value, that enables + DL_FIND_HASH_VALUE to return something different than the symbol + itself, e.g., a function descriptor. */ +#define ELF_RTYPE_CLASS_DLSYM 0x80000000 + /* Convert between the Linux flags for page protections and the ones specified in the ELF standard. */ -- cgit v1.2.3