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3d3316b1de
We need NO_RTLD_HIDDEN because of the need for PLT calls in ld.so. See Roland's comment in https://sourceware.org/bugzilla/show_bug.cgi?id=15605 "in the Hurd it's crucial that calls like __mmap be the libc ones instead of the rtld-local ones after the bootstrap phase, when the dynamic linker is being used for dlopen and the like." We used to just avoid all hidden use in the rtld ; this commit switches to keeping only those that should use PLT calls, i.e. essentially those defined in sysdeps/mach/hurd/dl-sysdep.c: __assert_fail __assert_perror_fail __*stat64 _exit This fixes a few startup issues, notably the call to __tunable_get_val that is made before PLTs are set up.
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* Copyright (C) 1993-2020 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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<https://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/port.h>
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#include <sysdep.h>
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#include <sys/wait.h>
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void
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_hurd_exit (int status)
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{
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/* Give the proc server our exit status. */
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__USEPORT (PROC, __proc_mark_exit (port, status, 0));
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/* Commit suicide. */
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__task_terminate (__mach_task_self ());
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/* Perhaps the cached mach_task_self was bogus. */
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__task_terminate ((__mach_task_self) ());
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/* This sucker really doesn't want to die. */
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while (1)
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{
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#ifdef LOSE
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LOSE;
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#else
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volatile const int zero = 0, one = 1;
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volatile int lossage = one / zero;
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#endif
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}
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}
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void
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_exit (int status)
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{
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_hurd_exit (W_EXITCODE (status, 0));
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}
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libc_hidden_def (_exit)
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#ifndef NO_RTLD_HIDDEN
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rtld_hidden_def (_exit)
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#endif
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weak_alias (_exit, _Exit)
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