[PATCH v4 03/10] tools/nolibc: sys.h: apply __sysret() helper
Zhangjin Wu
falcon at tinylab.org
Mon Jun 19 08:44:00 PDT 2023
Use __sysret() to shrink most of the library routines to oneline code.
Removed 266 lines of duplicated code.
Reviewed-by: Thomas Weißschuh <linux at weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon at tinylab.org>
---
tools/include/nolibc/sys.h | 354 +++++--------------------------------
1 file changed, 44 insertions(+), 310 deletions(-)
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 150777207468..4fbefe5adf93 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -76,13 +76,7 @@ void *sys_brk(void *addr)
static __attribute__((unused))
int brk(void *addr)
{
- void *ret = sys_brk(addr);
-
- if (!ret) {
- SET_ERRNO(ENOMEM);
- return -1;
- }
- return 0;
+ return __sysret(sys_brk(addr) ? 0 : -ENOMEM);
}
static __attribute__((unused))
@@ -112,13 +106,7 @@ int sys_chdir(const char *path)
static __attribute__((unused))
int chdir(const char *path)
{
- int ret = sys_chdir(path);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_chdir(path));
}
@@ -141,13 +129,7 @@ int sys_chmod(const char *path, mode_t mode)
static __attribute__((unused))
int chmod(const char *path, mode_t mode)
{
- int ret = sys_chmod(path, mode);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_chmod(path, mode));
}
@@ -170,13 +152,7 @@ int sys_chown(const char *path, uid_t owner, gid_t group)
static __attribute__((unused))
int chown(const char *path, uid_t owner, gid_t group)
{
- int ret = sys_chown(path, owner, group);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_chown(path, owner, group));
}
@@ -193,13 +169,7 @@ int sys_chroot(const char *path)
static __attribute__((unused))
int chroot(const char *path)
{
- int ret = sys_chroot(path);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_chroot(path));
}
@@ -216,13 +186,7 @@ int sys_close(int fd)
static __attribute__((unused))
int close(int fd)
{
- int ret = sys_close(fd);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_close(fd));
}
@@ -239,13 +203,7 @@ int sys_dup(int fd)
static __attribute__((unused))
int dup(int fd)
{
- int ret = sys_dup(fd);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_dup(fd));
}
@@ -268,13 +226,7 @@ int sys_dup2(int old, int new)
static __attribute__((unused))
int dup2(int old, int new)
{
- int ret = sys_dup2(old, new);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_dup2(old, new));
}
@@ -292,13 +244,7 @@ int sys_dup3(int old, int new, int flags)
static __attribute__((unused))
int dup3(int old, int new, int flags)
{
- int ret = sys_dup3(old, new, flags);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_dup3(old, new, flags));
}
#endif
@@ -316,13 +262,7 @@ int sys_execve(const char *filename, char *const argv[], char *const envp[])
static __attribute__((unused))
int execve(const char *filename, char *const argv[], char *const envp[])
{
- int ret = sys_execve(filename, argv, envp);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_execve(filename, argv, envp));
}
@@ -369,13 +309,7 @@ pid_t sys_fork(void)
static __attribute__((unused))
pid_t fork(void)
{
- pid_t ret = sys_fork();
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_fork());
}
@@ -392,13 +326,7 @@ int sys_fsync(int fd)
static __attribute__((unused))
int fsync(int fd)
{
- int ret = sys_fsync(fd);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_fsync(fd));
}
@@ -415,13 +343,7 @@ int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count)
static __attribute__((unused))
int getdents64(int fd, struct linux_dirent64 *dirp, int count)
{
- int ret = sys_getdents64(fd, dirp, count);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_getdents64(fd, dirp, count));
}
@@ -459,13 +381,7 @@ pid_t sys_getpgid(pid_t pid)
static __attribute__((unused))
pid_t getpgid(pid_t pid)
{
- pid_t ret = sys_getpgid(pid);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_getpgid(pid));
}
@@ -545,15 +461,7 @@ static unsigned long getauxval(unsigned long key);
static __attribute__((unused))
long getpagesize(void)
{
- long ret;
-
- ret = getauxval(AT_PAGESZ);
- if (!ret) {
- SET_ERRNO(ENOENT);
- return -1;
- }
-
- return ret;
+ return __sysret(getauxval(AT_PAGESZ) ?: -ENOENT);
}
@@ -570,13 +478,7 @@ int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
static __attribute__((unused))
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
- int ret = sys_gettimeofday(tv, tz);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_gettimeofday(tv, tz));
}
@@ -614,13 +516,7 @@ int sys_ioctl(int fd, unsigned long req, void *value)
static __attribute__((unused))
int ioctl(int fd, unsigned long req, void *value)
{
- int ret = sys_ioctl(fd, req, value);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_ioctl(fd, req, value));
}
/*
@@ -636,13 +532,7 @@ int sys_kill(pid_t pid, int signal)
static __attribute__((unused))
int kill(pid_t pid, int signal)
{
- int ret = sys_kill(pid, signal);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_kill(pid, signal));
}
@@ -665,13 +555,7 @@ int sys_link(const char *old, const char *new)
static __attribute__((unused))
int link(const char *old, const char *new)
{
- int ret = sys_link(old, new);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_link(old, new));
}
@@ -688,13 +572,7 @@ off_t sys_lseek(int fd, off_t offset, int whence)
static __attribute__((unused))
off_t lseek(int fd, off_t offset, int whence)
{
- off_t ret = sys_lseek(fd, offset, whence);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_lseek(fd, offset, whence));
}
@@ -717,13 +595,7 @@ int sys_mkdir(const char *path, mode_t mode)
static __attribute__((unused))
int mkdir(const char *path, mode_t mode)
{
- int ret = sys_mkdir(path, mode);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_mkdir(path, mode));
}
@@ -746,13 +618,7 @@ long sys_mknod(const char *path, mode_t mode, dev_t dev)
static __attribute__((unused))
int mknod(const char *path, mode_t mode, dev_t dev)
{
- int ret = sys_mknod(path, mode, dev);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_mknod(path, mode, dev));
}
#ifndef MAP_SHARED
@@ -810,13 +676,7 @@ int sys_munmap(void *addr, size_t length)
static __attribute__((unused))
int munmap(void *addr, size_t length)
{
- int ret = sys_munmap(addr, length);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_munmap(addr, length));
}
/*
@@ -836,13 +696,7 @@ int mount(const char *src, const char *tgt,
const char *fst, unsigned long flags,
const void *data)
{
- int ret = sys_mount(src, tgt, fst, flags, data);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_mount(src, tgt, fst, flags, data));
}
@@ -876,13 +730,7 @@ int open(const char *path, int flags, ...)
va_end(args);
}
- ret = sys_open(path, flags, mode);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_open(path, flags, mode));
}
@@ -902,13 +750,7 @@ static __attribute__((unused))
int prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5)
{
- int ret = sys_prctl(option, arg2, arg3, arg4, arg5);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_prctl(option, arg2, arg3, arg4, arg5));
}
@@ -925,13 +767,7 @@ int sys_pivot_root(const char *new, const char *old)
static __attribute__((unused))
int pivot_root(const char *new, const char *old)
{
- int ret = sys_pivot_root(new, old);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_pivot_root(new, old));
}
@@ -960,13 +796,7 @@ int sys_poll(struct pollfd *fds, int nfds, int timeout)
static __attribute__((unused))
int poll(struct pollfd *fds, int nfds, int timeout)
{
- int ret = sys_poll(fds, nfds, timeout);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_poll(fds, nfds, timeout));
}
@@ -983,13 +813,7 @@ ssize_t sys_read(int fd, void *buf, size_t count)
static __attribute__((unused))
ssize_t read(int fd, void *buf, size_t count)
{
- ssize_t ret = sys_read(fd, buf, count);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_read(fd, buf, count));
}
@@ -1007,13 +831,7 @@ ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg)
static __attribute__((unused))
int reboot(int cmd)
{
- int ret = sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0));
}
@@ -1030,13 +848,7 @@ int sys_sched_yield(void)
static __attribute__((unused))
int sched_yield(void)
{
- int ret = sys_sched_yield();
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_sched_yield());
}
@@ -1076,13 +888,7 @@ int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeva
static __attribute__((unused))
int select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout)
{
- int ret = sys_select(nfds, rfds, wfds, efds, timeout);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_select(nfds, rfds, wfds, efds, timeout));
}
@@ -1099,13 +905,7 @@ int sys_setpgid(pid_t pid, pid_t pgid)
static __attribute__((unused))
int setpgid(pid_t pid, pid_t pgid)
{
- int ret = sys_setpgid(pid, pgid);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_setpgid(pid, pgid));
}
@@ -1122,13 +922,7 @@ pid_t sys_setsid(void)
static __attribute__((unused))
pid_t setsid(void)
{
- pid_t ret = sys_setsid();
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_setsid());
}
#if defined(__NR_statx)
@@ -1145,13 +939,7 @@ int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct sta
static __attribute__((unused))
int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
{
- int ret = sys_statx(fd, path, flags, mask, buf);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_statx(fd, path, flags, mask, buf));
}
#endif
@@ -1231,13 +1019,7 @@ int sys_stat(const char *path, struct stat *buf)
static __attribute__((unused))
int stat(const char *path, struct stat *buf)
{
- int ret = sys_stat(path, buf);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_stat(path, buf));
}
@@ -1260,13 +1042,7 @@ int sys_symlink(const char *old, const char *new)
static __attribute__((unused))
int symlink(const char *old, const char *new)
{
- int ret = sys_symlink(old, new);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_symlink(old, new));
}
@@ -1300,13 +1076,7 @@ int sys_umount2(const char *path, int flags)
static __attribute__((unused))
int umount2(const char *path, int flags)
{
- int ret = sys_umount2(path, flags);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_umount2(path, flags));
}
@@ -1329,13 +1099,7 @@ int sys_unlink(const char *path)
static __attribute__((unused))
int unlink(const char *path)
{
- int ret = sys_unlink(path);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_unlink(path));
}
@@ -1354,38 +1118,20 @@ pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage)
static __attribute__((unused))
pid_t wait(int *status)
{
- pid_t ret = sys_wait4(-1, status, 0, NULL);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_wait4(-1, status, 0, NULL));
}
static __attribute__((unused))
pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage)
{
- pid_t ret = sys_wait4(pid, status, options, rusage);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_wait4(pid, status, options, rusage));
}
static __attribute__((unused))
pid_t waitpid(pid_t pid, int *status, int options)
{
- pid_t ret = sys_wait4(pid, status, options, NULL);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_wait4(pid, status, options, NULL));
}
@@ -1402,13 +1148,7 @@ ssize_t sys_write(int fd, const void *buf, size_t count)
static __attribute__((unused))
ssize_t write(int fd, const void *buf, size_t count)
{
- ssize_t ret = sys_write(fd, buf, count);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_write(fd, buf, count));
}
@@ -1425,13 +1165,7 @@ int sys_memfd_create(const char *name, unsigned int flags)
static __attribute__((unused))
int memfd_create(const char *name, unsigned int flags)
{
- ssize_t ret = sys_memfd_create(name, flags);
-
- if (ret < 0) {
- SET_ERRNO(-ret);
- ret = -1;
- }
- return ret;
+ return __sysret(sys_memfd_create(name, flags));
}
/* make sure to include all global symbols */
--
2.25.1
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