MUNMAP(2FREEBSD) - Linux man page online | System calls
Remove a mapping.
Chapter
June 22, 2017
MUNMAP(2) BSD System Calls Manual MUNMAP(2)
NAME
munmap — remove a mappingLIBRARY
Standard C Library (libc, -lc)SYNOPSIS
#include <sys/mman.h> int munmap(void *addr, size_t len);DESCRIPTION
The munmap() system call deletes the mappings and guards for the specified address range, and causes further references to addresses within the range to generate invalid memory ref‐ erences.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
The munmap() system call will fail if: [EINVAL] The addr argument was not page aligned, the len argument was zero or neg‐ ative, 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() system call first appeared in 4.4BSD.| This manual | Reference | Other manuals |
|---|---|---|
| munmap(2freebsd) | referred by | |
| refer to | madvise(2) | mincore(2) | mmap(2) | mprotect(2) | msync(2) |