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authorUlrich Drepper <drepper@redhat.com>2000-05-05 07:15:29 +0000
committerUlrich Drepper <drepper@redhat.com>2000-05-05 07:15:29 +0000
commitc0282c0642e99b375ab14fd343aa537445cd72a4 (patch)
tree2fb1716922b899555ab3bdcfbd95225d7e1e912d /elf/dl-sym.c
parent61d357cae37d7d84afa50bdba12dcf177980e7bf (diff)
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Update.
2000-05-05 Ulrich Drepper <drepper@redhat.com> * elf/dl-load.c (_dl_map_object_from_fd): Little of computation of parameter to mprotect and for variable assignments. 2000-05-03 Jes Sorensen <jes@linuxcare.com> * sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Check the validity of map before dereferencing it. * elf/dl-reloc.c (RESOLVE_MAP): Define. 2000-05-02 Jes Sorensen <jes@linuxcare.com> * elf/dl-runtime.c (fixup): Add the value returned in the symbol lookup to the arguments to elf_machine_fixup_plt(). * sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Add Link_map of the symbol being resolved to input argument list and make the function return the pointer to the reloc. * sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Change return valuie to lookup_t and return the value. * sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/powerpc/dl-machine.h (elf_machine_fixup_plt): Likewise. Make it an inline function returning value after calling __elf_machine_fixup_plt(). * elf/dl-sym.c (_dl_vsym): Use DL_SYMBOL_ADDRESS() to obtain the symbol address. * elf/dl-symbol.c (_dl_symbol_value): Use LOOKUP_VALUE_ADDRESS to obtain the symbol address. * sysdeps/generic/ldsodefs.h: Add generic DL_SYMBOL_ADDRESS() macro depending on the definition of ELF_FUNCTION_PTR_IS_SPECIAL. * sysdeps/ia64/dl-machine.h: Add DL_SYMBOL_ADDRESS() macro calling _dl_symbol_address() - this way DL_SYMBOL_ADDRESS() turns into an inline on non ia64. 2000-04-28 Jes Sorensen <jes@linuxcare.com> * elf/dl-runtime.c (fixup): Use the portable macros to get the symbol address of an object. * elf/dl-runtime.c (fixup-profile): Use the portable macros to get the symbol address of an object. * elf/dl-libc.c (struct do_dlsym_args): Change loadbase to a lookup_t. * elf/dl-lookup.c (_dl_lookup_symbol): Likewise. (_dl_lookup_symbol_skip): Likewise. (_dl_lookup_versioned_symbol): Likewise. (_dl_lookup_versioned_symbol_skip): Likewise. 2000-04-27 Jes Sorensen <jes@linuxcare.com> * elf/rtld.c (_dl_start): Get the function pointer return address via _dl_start_address for architectures that need a function pointer descriptor rather than just a pointer (ia64). * sysdeps/generic/dl-lookupcfg.h: New file. * sysdeps/ia64/dl-lookupcfg.h: New file. * sysdeps/ia64/dl-machine.h: New file. * sysdeps/ia64/dl-symaddr.c: New file. * sysdeps/ia64/dl-fptr.c: New file. * elf/elf.h: Add IA-64 specific definitions.
Diffstat (limited to 'elf/dl-sym.c')
-rw-r--r--elf/dl-sym.c39
1 files changed, 19 insertions, 20 deletions
diff --git a/elf/dl-sym.c b/elf/dl-sym.c
index 80be9544cb..84236ff993 100644
--- a/elf/dl-sym.c
+++ b/elf/dl-sym.c
@@ -1,5 +1,5 @@
/* Look up a symbol in a shared object loaded by `dlopen'.
- Copyright (C) 1999 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -29,12 +29,12 @@ void *
internal_function
_dl_sym (void *handle, const char *name, void *who)
{
- ElfW(Addr) loadbase;
const ElfW(Sym) *ref = NULL;
+ lookup_t result;
if (handle == RTLD_DEFAULT)
/* Search the global scope. */
- loadbase = _dl_lookup_symbol (name, NULL, &ref, _dl_global_scope, 0);
+ result = _dl_lookup_symbol (name, NULL, &ref, _dl_global_scope, 0);
else
{
struct link_map *l, *match;
@@ -56,8 +56,8 @@ _dl_sym (void *handle, const char *name, void *who)
main program (we hope). */
match = _dl_loaded;
- loadbase = _dl_lookup_symbol (name, match, &ref, map->l_local_scope,
- 0);
+ result = _dl_lookup_symbol (name, match, &ref, map->l_local_scope,
+ 0);
}
else
{
@@ -69,13 +69,13 @@ RTLD_NEXT used in code not dynamically loaded"));
while (l->l_loader)
l = l->l_loader;
- loadbase = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope,
- match);
+ result = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope,
+ match);
}
}
- if (loadbase)
- return (void *) (loadbase + ref->st_value);
+ if (result)
+ return DL_SYMBOL_ADDRESS (result, ref);
return NULL;
}
@@ -84,9 +84,9 @@ void *
internal_function
_dl_vsym (void *handle, const char *name, const char *version, void *who)
{
- ElfW(Addr) loadbase;
const ElfW(Sym) *ref = NULL;
struct r_found_version vers;
+ lookup_t result;
/* Compute hash value to the version string. */
vers.name = version;
@@ -97,8 +97,8 @@ _dl_vsym (void *handle, const char *name, const char *version, void *who)
if (handle == RTLD_DEFAULT)
/* Search the global scope. */
- loadbase = _dl_lookup_versioned_symbol (name, NULL, &ref, _dl_global_scope,
- &vers, 0);
+ result = _dl_lookup_versioned_symbol (name, NULL, &ref, _dl_global_scope,
+ &vers, 0);
else if (handle == RTLD_NEXT)
{
struct link_map *l, *match;
@@ -118,20 +118,19 @@ RTLD_NEXT used in code not dynamically loaded"));
while (l->l_loader)
l = l->l_loader;
- loadbase = _dl_lookup_versioned_symbol_skip (name, l, &ref,
- l->l_local_scope,
- &vers, match);
+ result = _dl_lookup_versioned_symbol_skip (name, l, &ref,
+ l->l_local_scope,
+ &vers, match);
}
else
{
/* Search the scope of the given object. */
struct link_map *map = handle;
- loadbase = _dl_lookup_versioned_symbol (name, map, &ref,
- map->l_local_scope, &vers, 0);
+ result = _dl_lookup_versioned_symbol (name, map, &ref,
+ map->l_local_scope, &vers, 0);
}
- if (loadbase)
- return (void *) (loadbase + ref->st_value);
-
+ if (result)
+ return DL_SYMBOL_ADDRESS (result, ref);
return NULL;
}