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Obey LD_HWCAP_MASK in ld.so.cache lookups.

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This commit is contained in:
Roland McGrath
2010-04-05 19:43:05 -07:00
parent 4dd019e3a1
commit 7bfa311ff5
3 changed files with 21 additions and 6 deletions
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10
elf/dl-support.c
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@ -1,5 +1,5 @@
/* Support for dynamic linking code in static libc.
Copyright (C) 1996-2008, 2009 Free Software Foundation, Inc.
Copyright (C) 1996-2008,2009,2010 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
@ -126,6 +126,14 @@ ElfW(Phdr) *_dl_phdr;
size_t _dl_phnum;
uint64_t _dl_hwcap __attribute__ ((nocommon));
/* This is not initialized to HWCAP_IMPORTANT, matching the definition
of _dl_important_hwcaps, below, where no hwcap strings are ever
used. This mask is still used to mediate the lookups in the cache
file. Since there is no way to set this nonzero (we don't grok the
LD_HWCAP_MASK environment variable here), there is no real point in
setting _dl_hwcap nonzero below, but we do anyway. */
uint64_t _dl_hwcap_mask __attribute__ ((nocommon));
/* Prevailing state of the stack, PF_X indicating it's executable. */
ElfW(Word) _dl_stack_flags = PF_R|PF_W|PF_X;