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/* Copyright (C) 2002 Manuel Novoa III
* An __assert() function compatible with the modified glibc assert.h
* that is used by uClibc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*/
/* Oct 28, 2002
*
* ANSI/ISO C99 requires assert() to write to stderr. This means that
* writing to STDERR_FILENO is insufficient, as the user could freopen
* stderr. It is also insufficient to output to fileno(stderr) since
* this would fail in the custom stream case. I didn't remove the
* old code though, as it doesn't use stdio stream functionality
* and is useful in debugging the stdio code.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* Get the prototype from assert.h as a double-check. */
#undef NDEBUG
#include <assert.h>
#undef assert
#define ASSERT_SHOW_PROGNAME 1
static smallint in_assert; /* bss inits to 0. */
void __assert(const char *assertion, const char * filename,
unsigned int linenumber, register const char * function)
{
if (!in_assert) {
in_assert = 1;
fprintf(stderr,
#ifdef ASSERT_SHOW_PROGNAME
"%s: %s: %d: %s: Assertion `%s' failed.\n", __uclibc_progname,
#else
"%s: %d: %s: Assertion `%s' failed.\n",
#endif
filename,
linenumber,
/* Function name isn't available with some compilers. */
((function == NULL) ? "?function?" : function),
assertion
);
}
/* shouldn't we? fflush(stderr); */
abort();
}
libc_hidden_def(__assert)
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