mirror of
https://github.com/checkpoint-restore/criu.git
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2e13f1f029
Move static and transition into zdtm top. We can't move all the micro tests themselves, as we need to distinguish static from non static (zdtm.py makes additional checks on static ones). Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <linux/limits.h>
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#include "zdtmtst.h"
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const char *test_doc = "Test mappings of same file with different prot";
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const char *test_author = "Jamie Liu <jamieliu@google.com>";
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char *filename;
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TEST_OPTION(filename, string, "file name", 1);
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#define die(fmt, arg...) do { pr_perror(fmt, ## arg); return 1; } while (0)
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int main(int argc, char ** argv)
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{
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void *ro_map, *rw_map;
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int fd;
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test_init(argc, argv);
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fd = open(filename, O_RDWR | O_CREAT, 0644);
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if (fd < 0)
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die("open failed");
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if (ftruncate(fd, 2 * PAGE_SIZE))
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die("ftruncate failed");
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ro_map = mmap(NULL, 2 * PAGE_SIZE, PROT_READ, MAP_SHARED, fd, 0);
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if (ro_map == MAP_FAILED)
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die("mmap failed");
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rw_map = ro_map + PAGE_SIZE;
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if (mprotect(rw_map, PAGE_SIZE, PROT_READ | PROT_WRITE))
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die("mprotect failed");
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close(fd);
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test_daemon();
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test_waitsig();
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/* Check that rw_map is still writeable */
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*(volatile char *)rw_map = 1;
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if (mprotect(ro_map, PAGE_SIZE, PROT_READ | PROT_WRITE)) {
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fail("mprotect after restore failed");
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return 1;
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}
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pass();
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return 0;
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}
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