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* sysdeps/generic/ldsodefs.h (DL_ADDR_SYM_MATCH): For undefined

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symbol require exact match (these are PLTs).
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ldsodefs.h
	(_dl_ppc64_addr_sym_match): Likewise.
This commit is contained in:
Ulrich Drepper 2006-08-24 20:29:43 +00:00
parent 93b53ca279
commit 2ac9ca7300
3 changed files with 8 additions and 3 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2006-08-24 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/ldsodefs.h (DL_ADDR_SYM_MATCH): For undefined
symbol require exact match (these are PLTs).
* sysdeps/unix/sysv/linux/powerpc/powerpc64/ldsodefs.h
(_dl_ppc64_addr_sym_match): Likewise.
[BZ #2683]
* elf/dl-addr.c (_dl_addr): Don't ignore all undefined symbols.
If symbol has a value use it.

2
sysdeps/generic/ldsodefs.h
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@ -76,7 +76,7 @@ typedef struct link_map *lookup_t;
/* On some architectures dladdr can't use st_size of all symbols this way. */
#define DL_ADDR_SYM_MATCH(L, SYM, MATCHSYM, ADDR) \
((ADDR) >= (L)->l_addr + (SYM)->st_value \
&& (((SYM)->st_size == 0 \
&& ((((SYM)->st_shndx == SHN_UNDEF || (SYM)->st_size == 0) \
&& (ADDR) == (L)->l_addr + (SYM)->st_value) \
|| (ADDR) < (L)->l_addr + (SYM)->st_value + (SYM)->st_size) \
&& ((MATCHSYM) == NULL || (MATCHSYM)->st_value < (SYM)->st_value))

4
sysdeps/unix/sysv/linux/powerpc/powerpc64/ldsodefs.h
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@ -1,5 +1,5 @@
/* Run-time dynamic linker data structures for loaded ELF shared objects.
Copyright (C) 2005 Free Software Foundation, Inc.
Copyright (C) 2005, 2006 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
@ -47,7 +47,7 @@ _dl_ppc64_addr_sym_match (const struct link_map *l, const ElfW(Sym) *sym,
return false;
}
}
else if (sym->st_size == 0)
else if (sym->st_shndx == SHN_UNDEF || sym->st_size == 0)
{
if (addr != value)
return false;