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Add sys_msync()
+61
+3
src/kernel/emulation/linux/CMakeLists.txt
+3
src/kernel/emulation/linux/CMakeLists.txt
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src/kernel/emulation/linux/mman/msync.c
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src/kernel/emulation/linux/mman/msync.c
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#include "msync.h"
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#include "duct_mman.h"
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#include "../errno.h"
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#include "../base.h"
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#include <linux-syscalls/linux.h>
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int msync_flags_bsd_to_linux(int flags)
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{
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int oflags = 0;
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if (flags & BSD_MS_ASYNC)
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oflags |= LINUX_MS_ASYNC;
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if (flags & BSD_MS_SYNC)
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oflags |= LINUX_MS_SYNC;
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if (flags & BSD_MS_INVALIDATE)
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oflags |= LINUX_MS_INVALIDATE;
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return oflags;
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}
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long sys_msync(void* addr, unsigned long len, int flags)
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{
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return sys_msync_nocancel(addr, len, flags);
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}
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long sys_msync_nocancel(void* addr, unsigned long len, int flags)
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{
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int ret;
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ret = LINUX_SYSCALL(__NR_msync, addr, len, msync_flags_bsd_to_linux(flags));
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if (ret < 0)
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ret = errno_linux_to_bsd(ret);
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return ret;
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}
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src/kernel/emulation/linux/mman/msync.h
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src/kernel/emulation/linux/mman/msync.h
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#ifndef LINUX_MSYNC_H
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#define LINUX_MSYNC_H
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long sys_msync(void* addr, unsigned long len, int flags);
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long sys_msync_nocancel(void* addr, unsigned long len, int flags);
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#define LINUX_MS_ASYNC 1
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#define LINUX_MS_INVALIDATE 2
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#define LINUX_MS_SYNC 4
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#define BSD_MS_ASYNC 1
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#define BSD_MS_INVALIDATE 2
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#define BSD_MS_SYNC 0x10
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#endif
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+7
src/kernel/emulation/linux/syscalls.c
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src/kernel/emulation/linux/syscalls.c
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#include "syscalls.h"
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#include "kqueue/kqueue.h"
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#include "kqueue/kevent.h"
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#include "unistd/write.h"
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#include "unistd/read.h"
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#include "mman/mman.h"
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#include "mman/madvise.h"
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#include "mman/msync.h"
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#include "unistd/sync.h"
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#include "unistd/fsync.h"
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#include "unistd/fdatasync.h"
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[59] = sys_execve,
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[60] = sys_umask,
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[61] = sys_chroot,
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[65] = sys_msync,
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[66] = sys_vfork,
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[73] = sys_munmap,
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[74] = sys_mprotect,
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[347] = sys_getfsstat64,
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[360] = sys_bsdthread_create,
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[361] = sys_bsdthread_terminate,
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[362] = sys_kqueue,
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[363] = sys_kevent,
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[364] = sys_lchown,
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[366] = sys_bsdthread_register,
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[367] = sys_workq_open,
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[402] = sys_sendmsg_nocancel,
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[403] = sys_recvfrom_nocancel,
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[404] = sys_accept_nocancel,
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[405] = sys_msync_nocancel,
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[406] = sys_fcntl_nocancel,
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[407] = sys_select_nocancel,
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[408] = sys_fsync_nocancel,