Snap for 4704169 from df331216 to qt-release

Change-Id: I9329a1c162173f2e1e86c5eb58e8e0195a3c1a8b

sanitizer-status/Android.mk

+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_CFLAGS := -std=c11 -Wall -Werror -O0
+
+LOCAL_SRC_FILES:= sanitizer-status.c
+
+LOCAL_MODULE:= libsanitizer-status
+
+ifneq ($(filter address,$(SANITIZE_TARGET)),)
+LOCAL_CFLAGS += -DANDROID_SANITIZE_ADDRESS=1
+endif
+
+ifneq ($(filter coverage,$(SANITIZE_TARGET)),)
+LOCAL_CFLAGS += -DANDROID_SANITIZE_COVERAGE=1
+endif
+
+include $(BUILD_SHARED_LIBRARY)
+#==========================================================
+include $(CLEAR_VARS)
+
+LOCAL_CFLAGS := -std=c11 -Wall -Werror -O0
+
+LOCAL_SRC_FILES:= main.c
+
+LOCAL_MODULE:= sanitizer-status
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+
+LOCAL_SHARED_LIBRARIES += libsanitizer-status
+
+include $(BUILD_EXECUTABLE)

sanitizer-status/NOTICE

+
+   Copyright (c) 2005-2008, 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.
+
+   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.
+
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+

sanitizer-status/main.c

+int sanitizer_status(int argc, char** argv);
+
+int main(int argc, char** argv) {
+    return sanitizer_status(argc, argv);
+}

sanitizer-status/sanitizer-status.c

+/*
+ * Copyright (C) 2008 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.
+ */
+
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <limits.h>
+#include <paths.h>
+#include <pwd.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+// crashes if built with -fsanitize=address
+void test_crash_malloc() {
+  volatile char* heap = malloc(32);
+  heap[32] = heap[32];
+  printf("ASAN: Heap Test Failed\n");
+}
+
+// crashes if built with -fsanitize=address
+void test_crash_stack() {
+  volatile char stack[32];
+  volatile char* p_stack = stack;
+  p_stack[32] = p_stack[32];
+  printf("ASAN: Stack Test Failed\n");
+}
+
+int data_asan_exists() {
+  int fd = open("/data/asan", O_DIRECTORY | O_PATH | O_CLOEXEC, 0);
+  if(fd < 0) {
+    printf("ASAN: Missing /data/asan\n");
+    return 1;
+  }
+  close(fd);
+  return 0;
+}
+
+// crashes if built with -fsanitize=memory
+void test_msan_crash_stack() {
+  volatile int stack[10];
+  stack[5] = 0;
+  if (stack[0]) {
+    stack[0] = 1;
+  }
+  printf("MSAN: Stack Test Failed\n");
+}
+
+// crashes if built with -fsanitize=integer
+void test_integer_overflow() {
+  size_t max = (size_t)-1;
+  max++;
+  printf("UBSAN: Integer Overflow Test Failed\n");
+}
+
+// returns 0 if kcov is enabled
+int test_kcov() {
+  const char* kcov_file = "/sys/kernel/debug/kcov";
+  int fd = open(kcov_file, O_RDWR);
+  if (fd == -1) {
+    printf("KCOV: Could not open %s\n", kcov_file);
+    return 1;
+  }
+  close(fd);
+  return 0;
+}
+
+// returns 0 if kasan was compiled in
+int test_kasan() {
+  // rely on the exit status of grep to propagate
+  if (system("gzip -d < /proc/config.gz | grep CONFIG_KASAN=y >/dev/null")) {
+    printf("KASAN: CONFIG_KASAN not in /proc/config.gz\n");
+    return 1;
+  }
+  return 0;
+}
+
+// executes a test that is expected to crash
+// returns 0 if the test crashes
+int test(void (*function)()) {
+  fflush(stdout);
+
+  pid_t child = fork();
+  int status = 0;
+
+  if (child == -1) {
+    perror("fork");
+    exit(1);
+  }
+
+  if (child == 0) {
+    // Silence the ASAN report that is generated
+    close(2);
+
+    // Invoke the target function.  If it does not crash, terminate the process.
+    function();
+    exit(EXIT_SUCCESS);
+  }
+
+  // Wait for the child to either crash, or exit cleanly
+  while (child == waitpid(child, &status, 0)) {
+    if (!WIFEXITED(status))
+      continue;
+    if (WEXITSTATUS(status) == EXIT_SUCCESS)
+      return 1;
+    break;
+  }
+  return 0;
+}
+
+int have_option(const char* option, const char** argv, const int argc) {
+  for (int i = 1; i < argc; i++)
+    if (!strcmp(option, argv[i]))
+      return 1;
+  return 0;
+}
+
+int sanitizer_status(int argc, const char** argv) {
+  int test_everything = 0;
+  int failures = 0;
+
+  if (argc <= 1)
+    test_everything = 1;
+
+  if (test_everything || have_option("asan", argv, argc)) {
+    int asan_failures = 0;
+
+#ifndef ANDROID_SANITIZE_ADDRESS
+    asan_failures += 1;
+    printf("ASAN: Compiler flags failed!\n");
+#endif
+
+    asan_failures += test(test_crash_malloc);
+    asan_failures += test(test_crash_stack);
+    asan_failures += data_asan_exists();
+
+    if (!asan_failures)
+      printf("ASAN: OK\n");
+
+    failures += asan_failures;
+  }
+
+  if(test_everything || have_option("cov", argv, argc)) {
+    int cov_failures = 0;
+
+#ifndef ANDROID_SANITIZE_COVERAGE
+    printf("COV: Compiler flags failed!\n");
+    cov_failures += 1;
+#endif
+
+    if (!cov_failures)
+      printf("COV: OK\n");
+
+    failures += cov_failures;
+  }
+
+  if (test_everything || have_option("msan", argv, argc)) {
+    int msan_failures = 0;
+
+    msan_failures += test(test_msan_crash_stack);
+
+    if (!msan_failures)
+      printf("MSAN: OK\n");
+
+    failures += msan_failures;
+  }
+
+  if (test_everything || have_option("kasan", argv, argc)) {
+    int kasan_failures = 0;
+
+    kasan_failures += test_kasan();
+
+    if(!kasan_failures)
+      printf("KASAN: OK\n");
+
+    failures += kasan_failures;
+  }
+
+  if (test_everything || have_option("kcov", argv, argc)) {
+    int kcov_failures = 0;
+
+    kcov_failures += test_kcov();
+
+    if (!kcov_failures)
+      printf("KCOV: OK\n");
+
+    failures += kcov_failures;
+  }
+
+  if (test_everything || have_option("ubsan", argv, argc)) {
+    int ubsan_failures = 0;
+
+    ubsan_failures += test(test_integer_overflow);
+
+    if (!ubsan_failures)
+      printf("UBSAN: OK\n");
+
+    failures += ubsan_failures;
+  }
+
+  return failures > 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}