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authorAlviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>2022-02-11 22:57:50 +0700
committerJens Axboe <axboe@kernel.dk>2022-02-11 09:36:16 -0700
commitd238216f0d45d7670d7aa10e753ac049c2b9bd61 (patch)
tree5877f0b95aced7445c093479ad396afd3a47bc40
parent90a4da4d51f137229a2ef39b25880d81adfcb487 (diff)
downloadliburing-d238216f0d45d7670d7aa10e753ac049c2b9bd61.tar.gz
liburing-d238216f0d45d7670d7aa10e753ac049c2b9bd61.tar.bz2
arch/generic: Create arch generic syscall wrappers
This is a preparation for refactoring the syscall wrappers. This creates a new file src/arch/generic/syscall.h. This file contains libc syscall wrappers for architectures that don't have arch specific code. In the next patches, we will include this file from src/syscall.h. It aims to reduce the usage of #ifdef/#endif that occurs in every function in src/syscall.h file. Also, it will make the arch specific code structure cleaner and easier to manage. Cc: Nugra <richiisei@gmail.com> Signed-off-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org> Co-authored-by: Ammar Faizi <ammarfaizi2@gnuweeb.org> Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org> Link: https://lore.kernel.org/r/20220211155753.143698-2-ammarfaizi2@gnuweeb.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--src/arch/generic/syscall.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/src/arch/generic/syscall.h b/src/arch/generic/syscall.h
new file mode 100644
index 0000000..7136290
--- /dev/null
+++ b/src/arch/generic/syscall.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef LIBURING_ARCH_GENERIC_SYSCALL_H
+#define LIBURING_ARCH_GENERIC_SYSCALL_H
+
+static inline int ____sys_io_uring_register(int fd, unsigned opcode,
+ const void *arg, unsigned nr_args)
+{
+ int ret;
+ ret = syscall(__NR_io_uring_register, fd, opcode, arg, nr_args);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int ____sys_io_uring_setup(unsigned entries,
+ struct io_uring_params *p)
+{
+ int ret;
+ ret = syscall(__NR_io_uring_setup, entries, p);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int ____sys_io_uring_enter2(int fd, unsigned to_submit,
+ unsigned min_complete, unsigned flags,
+ sigset_t *sig, int sz)
+{
+ int ret;
+ ret = syscall(__NR_io_uring_enter, fd, to_submit, min_complete, flags,
+ sig, sz);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int ____sys_io_uring_enter(int fd, unsigned to_submit,
+ unsigned min_complete, unsigned flags,
+ sigset_t *sig)
+{
+ return ____sys_io_uring_enter2(fd, to_submit, min_complete, flags, sig,
+ _NSIG / 8);
+}
+
+static inline void *uring_mmap(void *addr, size_t length, int prot, int flags,
+ int fd, off_t offset)
+{
+ void *ret;
+ ret = mmap(addr, length, prot, flags, fd, offset);
+ return (ret == MAP_FAILED) ? ERR_PTR(-errno) : ret;
+}
+
+static inline int uring_munmap(void *addr, size_t length)
+{
+ int ret;
+ ret = munmap(addr, length);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int uring_madvise(void *addr, size_t length, int advice)
+{
+ int ret;
+ ret = madvise(addr, length, advice);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int uring_getrlimit(int resource, struct rlimit *rlim)
+{
+ int ret;
+ ret = getrlimit(resource, rlim);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int uring_setrlimit(int resource, const struct rlimit *rlim)
+{
+ int ret;
+ ret = setrlimit(resource, rlim);
+ return (ret < 0) ? -errno : ret;
+}
+
+static inline int uring_close(int fd)
+{
+ int ret;
+ ret = close(fd);
+ return (ret < 0) ? -errno : ret;
+}
+
+#endif /* #ifndef LIBURING_ARCH_GENERIC_SYSCALL_H */