9001cb1102
Redirect internal assertion failures to __libc_assert_fail, based on based on __libc_message, which writes directly to STDERR_FILENO and calls abort. Also disable message translation and reword the error message slightly (adjusting stdlib/tst-bz20544 accordingly). As a result of these changes, malloc no longer needs its own redefinition of __assert_fail. __libc_assert_fail needs to be stubbed out during rtld dependency analysis because the rtld rebuilds turn __libc_assert_fail into __assert_fail, which is unconditionally provided by elf/dl-minimal.c. This change is not possible for the public assert macro and its __assert_fail function because POSIX requires that the diagnostic is written to stderr. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
34 lines
1.3 KiB
C
34 lines
1.3 KiB
C
/* libc-internal assert that calls __libc_message.
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Copyright (C) 2022 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 <_itoa.h>
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#include <array_length.h>
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#include <intprops.h>
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#include <stdio.h>
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void
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__libc_assert_fail (const char *assertion, const char *file, unsigned int line,
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const char *function)
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{
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char linebuf[INT_BUFSIZE_BOUND (unsigned int)];
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array_end (linebuf)[-1] = '\0';
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char *linestr = _itoa_word (line, array_end (linebuf) - 1, 10, 0);
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__libc_message ("Fatal glibc error: %s:%s (%s): assertion failed: %s\n",
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file, linestr, function, assertion);
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}
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