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From: Ammar Faizi <[email protected]>
To: Jens Axboe <[email protected]>
Cc: io-uring Mailing List <[email protected]>,
	GNU/Weeb Mailing List <[email protected]>,
	Tea Inside Mailing List <[email protected]>,
	Alviro Iskandar Setiawan <[email protected]>,
	Alviro Iskandar Setiawan <[email protected]>,
	Nugra <[email protected]>,
	Ammar Faizi <[email protected]>
Subject: [PATCH liburing v1 1/4] arch/generic: Create arch generic syscall wrappers
Date: Fri, 11 Feb 2022 22:57:50 +0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

From: Alviro Iskandar Setiawan <[email protected]>

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 <[email protected]>
Signed-off-by: Alviro Iskandar Setiawan <[email protected]>
Co-authored-by: Ammar Faizi <[email protected]>
Signed-off-by: Ammar Faizi <[email protected]>
---
 src/arch/generic/syscall.h | 83 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 src/arch/generic/syscall.h

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 */
-- 
2.32.0


  reply	other threads:[~2022-02-11 15:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-11 15:57 [PATCH liburing v1 0/4] Refactor arch dependent code and x86-64 improvement Ammar Faizi
2022-02-11 15:57 ` Ammar Faizi [this message]
2022-02-11 15:57 ` [PATCH liburing v1 2/4] arch/x86, syscall: Refactor arch specific and generic syscall wrappers Ammar Faizi
2022-02-11 15:57 ` [PATCH liburing v1 3/4] lib.h: Split off lib header for arch specific and generic Ammar Faizi
2022-02-11 15:57 ` [PATCH liburing v1 4/4] Change all syscall function name prefix to __sys Ammar Faizi
2022-02-11 16:39 ` [PATCH liburing v1 0/4] Refactor arch dependent code and x86-64 improvement Jens Axboe

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