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85c748f9ff
Define all currently used Linux versions used for
PREPARE_VERSION{,_KNOWN} in sysdeps/unix/sysv/linux/dl-vdso.h and use
them instead of duplicating the versions and precomputed hashes across
architecture specific files.
* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (INIT_ARCH): Use
PREPARE_VERSION_KNOWN.
* sysdeps/unix/sysv/linux/aarch64/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/dl-vdso.h (VDSO_NAME_LINUX_2_6_39): New
define.
(VDSO_HASH_LINUX_2_6_39): Likewise.
(VDSO_NAME_LINUX_4_9): Likewise.
(VDSO_HASH_LINUX_4_9): Likewise.
* sysdeps/unix/sysv/linux/powerpc/gettimeofday.c (INIT_ARCH): Likewise.
* sysdeps/unix/sysv/linux/powerpc/init-first.c
(_libc_vdso_platform_setup): Likewise.
* sysdeps/unix/sysv/linux/powerpc/time.c (INIT_ARCH): Likewise.
* sysdeps/unix/sysv/linux/s390/init-first.c (_libc_vdso_platform_setup):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/init-first.c (__vdso_platform_setup):
Likewise.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/* ELF symbol resolve functions for VDSO objects.
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Copyright (C) 2005-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _DL_VDSO_H
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#define _DL_VDSO_H 1
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#include <assert.h>
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#include <ldsodefs.h>
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#include <dl-hash.h>
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/* Create version number record for lookup. */
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#define PREPARE_VERSION(var, vname, vhash) \
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struct r_found_version var; \
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var.name = vname; \
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var.hidden = 1; \
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var.hash = vhash; \
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assert (var.hash == _dl_elf_hash (var.name)); \
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/* We don't have a specific file where the symbol can be found. */ \
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var.filename = NULL
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/* Use this for the known version sets defined below, where we
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record their precomputed hash values only once, in this file. */
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#define PREPARE_VERSION_KNOWN(var, vname) \
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PREPARE_VERSION (var, VDSO_NAME_##vname, VDSO_HASH_##vname)
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#define VDSO_NAME_LINUX_2_6 "LINUX_2.6"
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#define VDSO_HASH_LINUX_2_6 61765110
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#define VDSO_NAME_LINUX_2_6_15 "LINUX_2.6.15"
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#define VDSO_HASH_LINUX_2_6_15 123718565
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#define VDSO_NAME_LINUX_2_6_29 "LINUX_2.6.29"
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#define VDSO_HASH_LINUX_2_6_29 123718585
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#define VDSO_NAME_LINUX_2_6_39 "LINUX_2.6.39"
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#define VDSO_HASH_LINUX_2_6_39 123718537
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#define VDSO_NAME_LINUX_4_9 "LINUX_4.9"
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#define VDSO_HASH_LINUX_4_9 61765625
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#define VDSO_NAME_LINUX_4_15 "LINUX_4.15"
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#define VDSO_HASH_LINUX_4_15 182943605
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/* Functions for resolving symbols in the VDSO link map. */
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extern void *_dl_vdso_vsym (const char *name,
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const struct r_found_version *version)
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attribute_hidden;
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#endif /* dl-vdso.h */
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