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5a85786a90
The __getrandom_nocancel function returns errors as negative values instead of errno. This is inconsistent with other _nocancel functions and it breaks "TEMP_FAILURE_RETRY (__getrandom_nocancel (p, n, 0))" in __arc4random_buf. Use INLINE_SYSCALL_CALL instead of INTERNAL_SYSCALL_CALL to fix this issue. But __getrandom_nocancel has been avoiding from touching errno for a reason, see BZ 29624. So add a __getrandom_nocancel_nostatus function and use it in tcache_key_initialize. Signed-off-by: Xi Ruoyao <xry111@xry111.site> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/* Uncancelable versions of cancelable interfaces. Generic version.
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Copyright (C) 2003-2024 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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#ifndef NOT_CANCEL_H
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# define NOT_CANCEL_H
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#include <fcntl.h>
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#include <poll.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <time.h>
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#include <sys/uio.h>
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/* By default we have none. Map the name to the normal functions. */
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#define __open_nocancel(...) \
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__open (__VA_ARGS__)
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#define __open64_nocancel(...) \
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__open64 (__VA_ARGS__)
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#define __openat_nocancel(...) \
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__openat (__VA_ARGS__)
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#define __openat64_nocancel(...) \
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__openat64 (__VA_ARGS__)
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#define __close_nocancel(fd) \
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__close (fd)
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#define __close_nocancel_nostatus(fd) \
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(void) __close (fd)
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#define __read_nocancel(fd, buf, n) \
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__read (fd, buf, n)
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#define __pread64_nocancel(fd, buf, count, offset) \
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__pread64 (fd, buf, count, offset)
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#define __write_nocancel(fd, buf, n) \
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__write (fd, buf, n)
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#define __writev_nocancel_nostatus(fd, iov, n) \
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(void) __writev (fd, iov, n)
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#define __fcntl64_nocancel(fd, cmd, ...) \
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__fcntl64 (fd, cmd, __VA_ARGS__)
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#define __getrandom_nocancel(buf, size, flags) \
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__getrandom (buf, size, flags)
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#define __getrandom_nocancel_nostatus(buf, size, flags) \
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__getrandom (buf, size, flags)
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#define __poll_infinity_nocancel(fds, nfds) \
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__poll (fds, nfds, -1)
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#endif /* NOT_CANCEL_H */
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