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Add parameter to check if files are mapped in processes not part of t…
…he recording.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| #include "util.h" | ||
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| #include <assert.h> | ||
| #include <fcntl.h> | ||
| #include <string.h> | ||
| #include <sys/mman.h> | ||
| #include <sys/stat.h> | ||
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| int main(__attribute__((unused)) int argc, char* argv[], char* argenv[]) { | ||
| size_t page_size = sysconf(_SC_PAGESIZE); | ||
| char last = 0; | ||
| char* p; | ||
| int proc_num = argv[2][0] - '0'; | ||
| int timeout = 30000; // 30 seconds | ||
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| if (argv[3][0] > '0') { | ||
| if (fork() == 0) { | ||
| char proc_num_arg[2] = {'0' + proc_num + 1, '\0'}; | ||
| char proc_to_start_arg[2] = {argv[3][0] - 1, '\0'}; | ||
| char* execv_argv[] = {argv[0], argv[1], proc_num_arg, proc_to_start_arg, NULL}; | ||
| execve("/proc/self/exe", execv_argv, argenv); | ||
| } | ||
| } | ||
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| int fd = open(argv[1], O_RDWR|O_CREAT, 0600); | ||
| test_assert(fd >= 0); | ||
| ftruncate(fd, page_size); | ||
| p = (char*)mmap(0, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); | ||
| assert(p != MAP_FAILED); | ||
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| while (1) { | ||
| if ((*p % 2) == proc_num) { | ||
| if ((*p)++ >= 6) { | ||
| atomic_printf("%d %d exiting.\n", getpid(), proc_num); | ||
| usleep(50000); /* first recorded process exiting kills all others, wait a little. */ | ||
| return 0; | ||
| } | ||
| } | ||
| if (last != *p) | ||
| atomic_printf("%d\n", last = *p); | ||
| usleep(50000); | ||
| timeout -= 50; | ||
| if (timeout < 0) { | ||
| atomic_printf("timeout reached.\n"); | ||
| return 0; | ||
| } | ||
| } | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| source `dirname $0`/util.sh | ||
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| rm -rf $workdir/map_file | ||
| RECORD_ARGS="--check-outside-mmaps" | ||
| record mmap_shared_extern$bitness $workdir/map_file 0 1 | ||
| mv record.out record.out.1 | ||
| mv record.err record.err.1 | ||
| grep "could cause diversion" $workdir/record.out.1 > /dev/null | ||
| if [[ $? != 1 ]]; then | ||
| failed "\"could cause diversion\" was returned when all processes are inside the recording." | ||
| exit | ||
| fi | ||
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| rm -rf $workdir/map_file | ||
| mmap_shared_extern$bitness $workdir/map_file 0 0 > /dev/null& | ||
| RECORD_ARGS="--check-outside-mmaps" | ||
| record mmap_shared_extern$bitness $workdir/map_file 1 0 | ||
| mv record.out record.out.2 | ||
| mv record.err record.err.2 | ||
| grep "could cause diversion" $workdir/record.out.2 > /dev/null | ||
| if [[ $? != 0 ]]; then | ||
| failed "\"could cause diversion\" was not returned when some processes are outside the recording." | ||
| fi |