Revert "shmobj: Support large page"
This reverts commit 9a60997ea0.
Change-Id: Id60959b4e03451987239faa0bbc2e780b72fafaa
This commit is contained in:
Masamichi Takagi
committed by
Masamichi Takagi
Masamichi Takagi
parent
40f8091fab
commit
d7cf39883f
@@ -1,238 +0,0 @@
|
||||
#define _GNU_SOURCE
|
||||
#include <sys/types.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/wait.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#define PAGES 3
|
||||
#define MAP_HUGE_SHIFT 26
|
||||
|
||||
static unsigned long ps, hps;
|
||||
|
||||
void *test_mmap(unsigned long size, int pgshift)
|
||||
{
|
||||
int lp_flags = 0;
|
||||
|
||||
if (pgshift != 0) {
|
||||
lp_flags = MAP_HUGETLB | (pgshift << MAP_HUGE_SHIFT);
|
||||
}
|
||||
|
||||
return mmap(NULL, size, PROT_WRITE | PROT_READ,
|
||||
MAP_ANONYMOUS | MAP_SHARED |
|
||||
lp_flags,
|
||||
-1, 0);
|
||||
}
|
||||
|
||||
int check_data(char *data_head, char chk_data, unsigned long off1,
|
||||
unsigned long off2, unsigned long off3)
|
||||
{
|
||||
int ret = -1;
|
||||
|
||||
if (*(data_head + off1) == chk_data &&
|
||||
*(data_head + off2) == chk_data &&
|
||||
*(data_head + off3) == chk_data) {
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
void *addr;
|
||||
int map_pgshift, unmap_pgshift, pid, status, err, ret = 0;
|
||||
size_t size, unmap_off;
|
||||
|
||||
if (argc < 3) {
|
||||
printf("error: too few arguments\n");
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
map_pgshift = atoi(argv[1]);
|
||||
unmap_pgshift = atoi(argv[2]);
|
||||
hps = (1 << map_pgshift);
|
||||
ps = (1 << unmap_pgshift);
|
||||
unmap_off = hps * (PAGES - 1) - ps;
|
||||
|
||||
printf("** Case 1: specified MAP_HUGETLB\n");
|
||||
size = hps * PAGES;
|
||||
unmap_off = hps * (PAGES - 1) - ps;
|
||||
addr = test_mmap(size, map_pgshift);
|
||||
if (addr == MAP_FAILED) {
|
||||
perror("mmap fail: ");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
errno = 0;
|
||||
err = munmap(addr + unmap_off, ps);
|
||||
if (err == 0 && errno == 0) {
|
||||
printf("[OK] munamp succceeded\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] munmap returned %d and errno: EINVAL\n", err);
|
||||
ret = -1;
|
||||
// goto out;
|
||||
}
|
||||
|
||||
pid = fork();
|
||||
if (pid == 0) {
|
||||
/* Child */
|
||||
memset(addr, 'b', unmap_off);
|
||||
memset(addr + unmap_off + ps, 'b', hps);
|
||||
memset(addr + unmap_off, '0', ps); /* expect SEGV */
|
||||
return 0;
|
||||
}
|
||||
else if (pid > 0) {
|
||||
/* Parent */
|
||||
if (waitpid(pid, &status, 0) == pid) {
|
||||
if (WIFSIGNALED(status) &&
|
||||
WTERMSIG(status) == SIGSEGV) {
|
||||
printf("[OK] Occurred SEGV on unmap area\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] Didn't occur SEGV\n");
|
||||
ret = -1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("[NG] waitpid failed\n");
|
||||
ret = -1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("[NG] fork failed\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
if (check_data((char *)addr, 'b',
|
||||
0, unmap_off - 1, unmap_off + ps) == 0) {
|
||||
printf("[OK] data is correct\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] data is NOT correct\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
printf("** Case 2: size is aligned on large page\n");
|
||||
size = hps * PAGES;
|
||||
addr = test_mmap(size, 0);
|
||||
if (addr == MAP_FAILED) {
|
||||
perror("mmap fail: ");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
errno = 0;
|
||||
err = munmap(addr + unmap_off, ps);
|
||||
if (err == 0 && errno == 0) {
|
||||
printf("[OK] munamp succceeded\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] munmap returned %d and errno: EINVAL\n", err);
|
||||
ret = -1;
|
||||
// goto out;
|
||||
}
|
||||
|
||||
pid = fork();
|
||||
if (pid == 0) {
|
||||
/* Child */
|
||||
memset(addr, 'b', unmap_off);
|
||||
memset(addr + unmap_off + ps, 'b', hps);
|
||||
memset(addr + unmap_off, '0', ps); /* expect SEGV */
|
||||
return 0;
|
||||
}
|
||||
else if (pid > 0) {
|
||||
/* Parent */
|
||||
if (waitpid(pid, &status, 0) == pid) {
|
||||
if (WIFSIGNALED(status) &&
|
||||
WTERMSIG(status) == SIGSEGV) {
|
||||
printf("[OK] Occurred SEGV on unmap area\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] Didn't occur SEGV\n");
|
||||
ret = -1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("[NG] waitpid failed\n");
|
||||
ret = -1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("[NG] fork failed\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
if (check_data((char *)addr, 'b',
|
||||
0, unmap_off - 1, unmap_off + ps) == 0) {
|
||||
printf("[OK] data is correct\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] data is NOT correct\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
printf("** Case 3: size is NOT aligned on large page\n");
|
||||
size = hps * PAGES - ps;
|
||||
addr = test_mmap(size, 0);
|
||||
if (addr == MAP_FAILED) {
|
||||
perror("mmap fail: ");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
errno = 0;
|
||||
err = munmap(addr + unmap_off, ps);
|
||||
if (err == 0 && errno == 0) {
|
||||
printf("[OK] munamp succceeded\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] munmap returned %d and errno: EINVAL\n", err);
|
||||
ret = -1;
|
||||
// goto out;
|
||||
}
|
||||
|
||||
pid = fork();
|
||||
if (pid == 0) {
|
||||
/* Child */
|
||||
memset(addr, 'b', unmap_off);
|
||||
memset(addr + unmap_off + ps, 'b', hps);
|
||||
memset(addr + unmap_off, '0', ps); /* expect SEGV */
|
||||
return 0;
|
||||
}
|
||||
else if (pid > 0) {
|
||||
/* Parent */
|
||||
if (waitpid(pid, &status, 0) == pid) {
|
||||
if (WIFSIGNALED(status) &&
|
||||
WTERMSIG(status) == SIGSEGV) {
|
||||
printf("[OK] Occurred SEGV on unmap area\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] Didn't occur SEGV\n");
|
||||
ret = -1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("[NG] waitpid failed\n");
|
||||
ret = -1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("[NG] fork failed\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
if (check_data((char *)addr, 'b',
|
||||
0, unmap_off - 1, unmap_off + ps) == 0) {
|
||||
printf("[OK] data is correct\n");
|
||||
}
|
||||
else {
|
||||
printf("[NG] data is NOT correct\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
Reference in New Issue
Block a user