third_party/ulib/musl/src/mman/munmap.c

#include "libc.h"
#include "zircon_impl.h"
#include <errno.h>
#include <zircon/process.h>
#include <zircon/syscalls.h>
#include <sys/mman.h>

int __munmap(void* start, size_t len) {
    uintptr_t ptr = (uintptr_t)start;
    zx_status_t status = _zx_vmar_unmap(_zx_vmar_root_self(), ptr, len);
    if (status < 0) {
        errno = EINVAL;
        return -1;
    }
    return 0;
}

weak_alias(__munmap, munmap);