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MUNMAP(2) BSD System Calls Manual MUNMAP(2) NAME munmap -- remove a mapping LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <sys/types.h> #include <sys/mman.h> int munmap(void *addr, size_t len); DESCRIPTION The munmap() system call deletes the mappings for the specified address range, and causes further references to addresses within the range to generate invalid memory references. RETURN VALUES The munmap() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS Munmap() will fail if: [EINVAL] The addr parameter was not page aligned, the len pa- rameter was negative, or some part of the region being unmapped is outside the valid address range for a process. SEE ALSO madvise(2), mincore(2), mmap(2), mprotect(2), msync(2), getpagesize(3) HISTORY The munmap() function first appeared in 4.4BSD. BSD May 27, 1994 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY
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