Add realpath for soinfo
This change adds realpath to soinfo and
extends limit on filenames from 128 to PATH_MAX.
It also removes soinfo::name field, linker uses
dt_soname instead.
Bug: http://b/19818481
Bug: https://code.google.com/p/android/issues/detail?id=80336
Change-Id: I9cff4cb5bda3ee2bc74e1bbded9594ea7fbe2a08
diff --git a/tests/utils.h b/tests/utils.h
new file mode 100644
index 0000000..bad5d89
--- /dev/null
+++ b/tests/utils.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __TEST_UTILS_H
+#define __TEST_UTILS_H
+#include <inttypes.h>
+#include <sys/mman.h>
+
+#include "private/ScopeGuard.h"
+
+struct map_record {
+ uintptr_t addr_start;
+ uintptr_t addr_end;
+
+ int perms;
+
+ size_t offset;
+
+ dev_t device;
+ ino_t inode;
+
+ std::string pathname;
+};
+
+class Maps {
+ public:
+ static bool parse_maps(std::vector<map_record>* maps) {
+ char path[64];
+ snprintf(path, sizeof(path), "/proc/self/task/%d/maps", getpid());
+ FILE* fp = fopen(path, "re");
+ if (fp == nullptr) {
+ return false;
+ }
+
+ auto fp_guard = make_scope_guard([&]() {
+ fclose(fp);
+ });
+
+ char line[BUFSIZ];
+ while (fgets(line, sizeof(line), fp) != nullptr) {
+ map_record record;
+ dev_t dev_major, dev_minor;
+ char pathstr[BUFSIZ];
+ char prot[5]; // sizeof("rwxp")
+ if (sscanf(line, "%" SCNxPTR "-%" SCNxPTR " %4s %" SCNxPTR " %x:%x %lu %s",
+ &record.addr_start, &record.addr_end, prot, &record.offset,
+ &dev_major, &dev_minor, &record.inode, pathstr) == 8) {
+ record.perms = 0;
+ if (prot[0] == 'r') {
+ record.perms |= PROT_READ;
+ }
+ if (prot[1] == 'w') {
+ record.perms |= PROT_WRITE;
+ }
+ if (prot[2] == 'x') {
+ record.perms |= PROT_EXEC;
+ }
+
+ // TODO: parse shared/private?
+
+ record.device = makedev(dev_major, dev_minor);
+ record.pathname = pathstr;
+ maps->push_back(record);
+ }
+ }
+
+ return true;
+ }
+};
+
+#endif