/* 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, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* 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> #include <bits/uClibc_uintmaxtostr.h> /* libc_hidden_proto(fprintf) */ /* libc_hidden_proto(abort) */ /* Get the prototype from assert.h as a double-check. */ #undef NDEBUG #include <assert.h> #undef assert /* libc_hidden_proto(__assert) */ #define ASSERT_SHOW_PROGNAME 1 static smallint in_assert; /* bss inits to 0. */ void attribute_noreturn __assert(const char *assertion, const char * filename, 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 ); } abort(); } libc_hidden_def(__assert)