#include <stdio.h>
#include <stdlib.h>
+#include <model-assert.h>
+
#include "common.h"
#include "model.h"
#include "stacktrace.h"
{
printf("Add breakpoint to line %u in file %s.\n",__LINE__,__FILE__);
}
+
+void model_assert(bool expr, const char *file, int line)
+{
+ if (!expr) {
+ printf(" [BUG] Program has hit assertion in file %s at line %d\n",
+ file, line);
+ model->set_assert();
+ model->switch_to_master(NULL);
+ }
+}
--- /dev/null
+#ifndef __MODEL_ASSERT_H__
+#define __MODEL_ASSERT_H__
+
+#if __cplusplus
+extern "C" {
+#endif
+
+void model_assert(bool expr, const char *file, int line);
+#define MODEL_ASSERT(expr) model_assert((expr), __FILE__, __LINE__)
+
+#if __cplusplus
+}
+#endif
+
+#endif /* __MODEL_ASSERT_H__ */
#include <iostream>
#include <fstream>
#include <unistd.h>
-#include <sys/types.h>
#include <sstream>
#include <cstring>
#include <string>
#include <inttypes.h>
#include "common.h"
-
+/* MYBINARYNAME only works because our pathname usually includes 'model' (e.g.,
+ * /.../model-checker/test/userprog.o) */
#define MYBINARYNAME "model"
#define MYLIBRARYNAME "libmodel.so"
-#define MAPFILE_FORMAT "/proc/%d/maps"
+#define MAPFILE "/proc/self/maps"
SnapshotStack * snapshotObject;
pclose(map);
}
#else
+
+static void get_binary_name(char *buf, size_t len)
+{
+ if (readlink("/proc/self/exe", buf, len) == -1) {
+ perror("readlink");
+ exit(EXIT_FAILURE);
+ }
+}
+
/** The SnapshotGlobalSegments function computes the memory regions
* that may contain globals and then configures the snapshotting
* library to snapshot them.
*/
static void SnapshotGlobalSegments(){
- int pid = getpid();
- char buf[9000], filename[100];
+ char buf[9000];
+ char binary_name[800];
FILE *map;
- sprintf(filename, MAPFILE_FORMAT, pid);
- map = fopen(filename, "r");
+ map = fopen(MAPFILE, "r");
if (!map) {
perror("fopen");
exit(EXIT_FAILURE);
}
+ get_binary_name(binary_name, sizeof(binary_name));
while (fgets(buf, sizeof(buf), map)) {
char regionname[200] = "";
char r, w, x, p;
void *begin, *end;
sscanf(buf, "%p-%p %c%c%c%c %*x %*x:%*x %*u %200s\n", &begin, &end, &r, &w, &x, &p, regionname);
- if (w == 'w' && (strstr(regionname, MYBINARYNAME) || strstr(regionname, MYLIBRARYNAME))) {
+ if (w == 'w' && (strstr(regionname, binary_name) || strstr(regionname, MYLIBRARYNAME))) {
size_t len = ((uintptr_t)end - (uintptr_t)begin) / PAGESIZE;
if (len != 0)
addMemoryRegionToSnapShot(begin, len);