30 lines
542 B
C++
30 lines
542 B
C++
#include <sys/mman.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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void* mmap(void* addr, size_t len, int prot, int flags, int fildes, off_t off)
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{
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sys_mmap_t args {
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.addr = addr,
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.len = len,
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.prot = prot,
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.flags = flags,
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.fildes = fildes,
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.off = off
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};
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long ret = syscall(SYS_MMAP, &args);
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if (ret == -1)
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return MAP_FAILED;
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return (void*)ret;
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}
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int munmap(void* addr, size_t len)
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{
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return syscall(SYS_MUNMAP, addr, len);
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}
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int msync(void* addr, size_t len, int flags)
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{
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return syscall(SYS_MSYNC, addr, len, flags);
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}
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