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authorBernd Schmidt <bernds_cb1@t-online.de>2007-12-03 22:54:16 +0000
committerBernd Schmidt <bernds_cb1@t-online.de>2007-12-03 22:54:16 +0000
commit95586b5663e51548e91fdbde34037886fb1eb07c (patch)
treed29cf66e07de417b715e84cbd04e4b38f0f96c40 /ldso/include/dl-elf.h
parent3d2a55e7a31cbb50ca1677d09791ca147368b62a (diff)
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.
Diffstat (limited to 'ldso/include/dl-elf.h')
-rw-r--r--ldso/include/dl-elf.h5
1 files changed, 5 insertions, 0 deletions
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. */