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Description
WSL's mmap behavior different from native Linux.
Native Linux work, but WSL(14388) segmentation fault.
Here is sample code:
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
char *path = "./test.db";
unlink(path);
int fd = open(path, O_RDWR|O_CREAT, 0644);
void *m_ptr = mmap(NULL, 16 * 1024, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
lseek(fd, 8 * 1024 - 1, SEEK_SET);
write(fd, "\0", 1);;
memset(m_ptr, 0, 8 * 1024);
printf("ok!!\n");
return 0;
}
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