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Add test cases for #765

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Refs: #765
Change-Id: I50d70a15d5d5ce31227cacbed4eccd49b218713b
This commit is contained in:
Tomoki Shirasawa
2018-08-01 13:21:53 +09:00
committed by Masamichi Takagi
parent ec99adde4a
commit 1387c9687b
6 changed files with 382 additions and 0 deletions
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113
test/issues/765/C765.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <errno.h>
#define SMALL_PAGE_SIZE 4096L
#define PAGE_MASK (~(SMALL_PAGE_SIZE - 1))
#define GET_PAGE_INFO 733
int
is_small_page(long pageinfo)
{
return (pageinfo & PAGE_MASK) == SMALL_PAGE_SIZE;
}
int
is_shared(long pageinfo)
{
return pageinfo & 1;
}
void
print_test(char *id, char *msg, void *p, int valid_small, int valid_shared)
{
long pageinfo = syscall(GET_PAGE_INFO, p);
int ng = 0;
int small_page = is_small_page(pageinfo);
int shared = is_shared(pageinfo);
char buf[80];
if (pageinfo == -1 && errno == ENOSYS) {
fprintf(stderr, "get_page_info: unsupported\n");
exit(1);
}
sprintf(buf, "%s %s addr=%p %s %s ", id, msg, p,
small_page ? "SMALL" : "LARGE", shared ? "SHARED" : "PRIVATE");
if (valid_small != -1 &&
small_page != valid_small) {
ng = 1;
}
if (shared != valid_shared) {
ng = 1;
}
printf("%s %s\n", buf, ng ? "NG" : "OK");
}
int
main(int argc, char **argv)
{
void *p;
char x[10];
key_t key;
int shmid;
struct shmid_ds buf;
p = x;
memset(p, '\0', 10);
print_test("C765T01", "stack", p, -1, 0);
p = malloc(10);
memset(p, '\0', 10);
print_test("C765T02", "heap", p, -1, 0);
p = mmap(NULL, 8 * 1024, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
memset(p, '\0', 8 * 1024);
print_test("C765T03", "private(8k)", p, 1, 0);
munmap(p, 8 * 1024);
p = mmap(NULL, 2 * 1024 * 1024, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
memset(p, '\0', 2 * 1024 * 1024);
print_test("C765T04", "private(2M)", p, 0, 0);
munmap(p, 2 * 1024 * 1024);
p = mmap(NULL, 8 * 1024, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
memset(p, '\0', 8 * 1024);
print_test("C765T05", "shared(8k)", p, 1, 1);
munmap(p, 8 * 1024);
p = mmap(NULL, 2 * 1024 * 1024, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
memset(p, '\0', 2 * 1024 * 1024);
print_test("C765T06", "shared(2M)", p, 1, 1);
munmap(p, 2 * 1024 * 1024);
key = ftok(argv[0], 1);
shmid = shmget(key, 8 * 1024, IPC_CREAT | 0660);
p = shmat(shmid, NULL, 0);
memset(p, '\0', 8 * 1024);
print_test("C765T07", "shm(8k)", p, 1, 1);
shmctl(shmid, IPC_RMID, &buf);
shmdt(p);
key = ftok(argv[0], 2);
shmid = shmget(key, 2 * 1024 * 1024, IPC_CREAT | 0660);
p = shmat(shmid, NULL, 0);
memset(p, '\0', 2 * 1024 * 1024);
print_test("C765T08", "shm(2M)", p, 1, 1);
shmctl(shmid, IPC_RMID, &buf);
shmdt(p);
exit(0);
}