The compiler wraps fork(), etc. system calls if coverage generation is enabled. These functions must be provided by the system. For RTEMS, they just return an error status.
Update #4670. --- cpukit/libcsupport/src/gcovfork.c | 94 +++++++++++++++++++++++++++++++ spec/build/cpukit/librtemscpu.yml | 1 + 2 files changed, 95 insertions(+) create mode 100644 cpukit/libcsupport/src/gcovfork.c diff --git a/cpukit/libcsupport/src/gcovfork.c b/cpukit/libcsupport/src/gcovfork.c new file mode 100644 index 0000000000..763412d735 --- /dev/null +++ b/cpukit/libcsupport/src/gcovfork.c @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file + * + * @ingroup libcsupport + * + * @brief This source file contains functions required by GCC if code and + * branch coverage instrumentation (gcov) is enabled. + */ + +/* + * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de) + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <sys/types.h> + +#include <errno.h> + +#include <rtems/seterr.h> + +int __gcov_execl( const char *, char *, ... ); + +int __gcov_execl( const char *path, char *arg, ... ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} + +int __gcov_execlp( const char *, char *, ... ); + +int __gcov_execlp( const char *path, char *arg, ... ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} + +int __gcov_execle( const char *, char *, ... ); + +int __gcov_execle( const char *path, char *arg, ... ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} + +int __gcov_execv( const char *, char *const[] ); + +int __gcov_execv( const char *path, char *const argv[] ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} + +int __gcov_execvp( const char *, char *const[] ); + +int __gcov_execvp( const char *path, char *const argv[] ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} + +int __gcov_execve( const char *, char *const[], char *const[] ); + +int __gcov_execve( const char *path, char *const argv[], char *const envp[] ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} + +pid_t __gcov_fork( void ); + +pid_t __gcov_fork( void ) +{ + rtems_set_errno_and_return_minus_one( ENOSYS ); +} diff --git a/spec/build/cpukit/librtemscpu.yml b/spec/build/cpukit/librtemscpu.yml index 965419c389..4a8a0ee1ad 100644 --- a/spec/build/cpukit/librtemscpu.yml +++ b/spec/build/cpukit/librtemscpu.yml @@ -640,6 +640,7 @@ source: - cpukit/libcsupport/src/ftruncate.c - cpukit/libcsupport/src/ftrylockfile.c - cpukit/libcsupport/src/funlockfile.c +- cpukit/libcsupport/src/gcovfork.c - cpukit/libcsupport/src/getchark.c - cpukit/libcsupport/src/getdents.c - cpukit/libcsupport/src/getegid.c -- 2.35.3 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
