X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=snapshot-interface.cc;h=fdabcf33549349acb203ac201608461aa25d049c;hb=130a35155171503883aaf18e57f8957ce63d06e8;hp=bd1de3e60645f15e299e545b07d197b5c90d4e43;hpb=5ea8e3d5d861ed363e5ac5f3b20b8181dd197efb;p=model-checker.git diff --git a/snapshot-interface.cc b/snapshot-interface.cc index bd1de3e..fdabcf3 100644 --- a/snapshot-interface.cc +++ b/snapshot-interface.cc @@ -12,7 +12,6 @@ /* 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 "/proc/self/maps" struct snapshot_entry { @@ -74,7 +73,7 @@ static void SnapshotGlobalSegments() sscanf(buf, "%22s %p-%p [%5dK] %c%c%c/%c%c%c SM=%3s %200s\n", type, &begin, &end, &size, &r, &w, &x, &mr, &mw, &mx, smstr, regionname); - if (w == 'w' && (strstr(regionname, MYBINARYNAME) || strstr(regionname, MYLIBRARYNAME))) { + if (w == 'w' && strstr(regionname, MYBINARYNAME)) { size_t len = ((uintptr_t)end - (uintptr_t)begin) / PAGESIZE; if (len != 0) snapshot_add_memory_region(begin, len); @@ -86,10 +85,16 @@ static void SnapshotGlobalSegments() static void get_binary_name(char *buf, size_t len) { - if (readlink("/proc/self/exe", buf, len) == -1) { + ssize_t size = readlink("/proc/self/exe", buf, len); + if (size < 0) { perror("readlink"); exit(EXIT_FAILURE); } + + /* Terminate string */ + if ((size_t)size > len) + size = len; + buf[size] = '\0'; } /** The SnapshotGlobalSegments function computes the memory regions @@ -114,7 +119,7 @@ static void SnapshotGlobalSegments() 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, binary_name) || strstr(regionname, MYLIBRARYNAME))) { + if (w == 'w' && strstr(regionname, binary_name)) { size_t len = ((uintptr_t)end - (uintptr_t)begin) / PAGESIZE; if (len != 0) snapshot_add_memory_region(begin, len);