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d400dcac5e
This patch fixes backtrace for PPC32 and PPC64 to correctly handle signal trampolines. The 'debug/tst-backtrace6.c' also check for SA_SIGINFO handling, where is triggers another vDSO symbols for PPC32.
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/* Initialization code run first thing by the ELF startup code. Linux/PowerPC.
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Copyright (C) 2007-2013 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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#ifdef SHARED
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# include <dl-vdso.h>
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# undef __gettimeofday
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# undef __clock_gettime
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# undef __clock_getres
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# include <bits/libc-vdso.h>
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void *__vdso_gettimeofday attribute_hidden;
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void *__vdso_clock_gettime;
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void *__vdso_clock_getres;
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void *__vdso_get_tbfreq;
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void *__vdso_getcpu;
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void *__vdso_time;
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#if defined(__PPC64__) || defined(__powerpc64__)
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void *__vdso_sigtramp_rt64;
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#else
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void *__vdso_sigtramp32;
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void *__vdso_sigtramp_rt32;
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#endif
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static inline void
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_libc_vdso_platform_setup (void)
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{
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PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);
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__vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);
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__vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615);
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__vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615);
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__vdso_get_tbfreq = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615);
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__vdso_getcpu = _dl_vdso_vsym ("__kernel_getcpu", &linux2615);
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__vdso_time = _dl_vdso_vsym ("__kernel_time", &linux2615);
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/* PPC64 uses only one signal trampoline symbol, while PPC32 will use
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two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not
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(__kernel_sigtramp32). */
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#if defined(__PPC64__) || defined(__powerpc64__)
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__vdso_sigtramp_rt64 = _dl_vdso_vsym ("__kernel_sigtramp_rt64", &linux2615);
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#else
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__vdso_sigtramp32 = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615);
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__vdso_sigtramp_rt32 = _dl_vdso_vsym ("__kernel_sigtramp_rt32", &linux2615);
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#endif
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}
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# define VDSO_SETUP _libc_vdso_platform_setup
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#endif
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#include <csu/init-first.c>
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