Elf interface for new unwinder.

This cl includes the code to read arm unwind information from a shared
library.

Bug: 23762183

Test: Passes all unit tests. I can dump the arm unwind information
Test: for an arm shared library.
Change-Id: I43501ea2eab843b81de8bd5128401dd1971af8d3

1 files changed, 0 insertions, 219 deletions

diff --git a/libunwindstack/tests/MapsTest.cpp b/libunwindstack/tests/MapsTest.cpp
deleted file mode 100644
index 216873f8c..000000000
--- a/libunwindstack/tests/MapsTest.cpp
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Copyright (C) 2016 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 <sys/mman.h>
-
-#include <android-base/file.h>
-#include <android-base/test_utils.h>
-#include <gtest/gtest.h>
-
-#include "Maps.h"
-
-#include "LogFake.h"
-
-class MapsTest : public ::testing::Test {
- protected:
-  void SetUp() override {
-    ResetLogs();
-  }
-};
-
-TEST_F(MapsTest, parse_permissions) {
-  MapsBuffer maps("1000-2000 ---- 00000000 00:00 0\n"
-                  "2000-3000 r--- 00000000 00:00 0\n"
-                  "3000-4000 -w-- 00000000 00:00 0\n"
-                  "4000-5000 --x- 00000000 00:00 0\n"
-                  "5000-6000 rwx- 00000000 00:00 0\n");
-
-  ASSERT_TRUE(maps.Parse());
-  ASSERT_EQ(5U, maps.Total());
-  auto it = maps.begin();
-  ASSERT_EQ(PROT_NONE, it->flags);
-  ASSERT_EQ(0x1000U, it->start);
-  ASSERT_EQ(0x2000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ("", it->name);
-  ++it;
-  ASSERT_EQ(PROT_READ, it->flags);
-  ASSERT_EQ(0x2000U, it->start);
-  ASSERT_EQ(0x3000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ("", it->name);
-  ++it;
-  ASSERT_EQ(PROT_WRITE, it->flags);
-  ASSERT_EQ(0x3000U, it->start);
-  ASSERT_EQ(0x4000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ("", it->name);
-  ++it;
-  ASSERT_EQ(PROT_EXEC, it->flags);
-  ASSERT_EQ(0x4000U, it->start);
-  ASSERT_EQ(0x5000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ("", it->name);
-  ++it;
-  ASSERT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, it->flags);
-  ASSERT_EQ(0x5000U, it->start);
-  ASSERT_EQ(0x6000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ("", it->name);
-  ++it;
-  ASSERT_EQ(it, maps.end());
-}
-
-TEST_F(MapsTest, parse_name) {
-  MapsBuffer maps("720b29b000-720b29e000 rw-p 00000000 00:00 0\n"
-                  "720b29e000-720b29f000 rw-p 00000000 00:00 0 /system/lib/fake.so\n"
-                  "720b29f000-720b2a0000 rw-p 00000000 00:00 0");
-
-  ASSERT_TRUE(maps.Parse());
-  ASSERT_EQ(3U, maps.Total());
-  auto it = maps.begin();
-  ASSERT_EQ("", it->name);
-  ASSERT_EQ(0x720b29b000U, it->start);
-  ASSERT_EQ(0x720b29e000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
-  ++it;
-  ASSERT_EQ("/system/lib/fake.so", it->name);
-  ASSERT_EQ(0x720b29e000U, it->start);
-  ASSERT_EQ(0x720b29f000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
-  ++it;
-  ASSERT_EQ("", it->name);
-  ASSERT_EQ(0x720b29f000U, it->start);
-  ASSERT_EQ(0x720b2a0000U, it->end);
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
-  ++it;
-  ASSERT_EQ(it, maps.end());
-}
-
-TEST_F(MapsTest, parse_offset) {
-  MapsBuffer maps("a000-e000 rw-p 00000000 00:00 0 /system/lib/fake.so\n"
-                  "e000-f000 rw-p 00a12345 00:00 0 /system/lib/fake.so\n");
-
-  ASSERT_TRUE(maps.Parse());
-  ASSERT_EQ(2U, maps.Total());
-  auto it = maps.begin();
-  ASSERT_EQ(0U, it->offset);
-  ASSERT_EQ(0xa000U, it->start);
-  ASSERT_EQ(0xe000U, it->end);
-  ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
-  ASSERT_EQ("/system/lib/fake.so", it->name);
-  ++it;
-  ASSERT_EQ(0xa12345U, it->offset);
-  ASSERT_EQ(0xe000U, it->start);
-  ASSERT_EQ(0xf000U, it->end);
-  ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
-  ASSERT_EQ("/system/lib/fake.so", it->name);
-  ++it;
-  ASSERT_EQ(maps.end(), it);
-}
-
-TEST_F(MapsTest, file_smoke) {
-  TemporaryFile tf;
-  ASSERT_TRUE(tf.fd != -1);
-
-  ASSERT_TRUE(android::base::WriteStringToFile(
-      "720b29b000-720b29e000 r-xp a0000000 00:00 0   /fake.so\n"
-      "720b2b0000-720b2e0000 r-xp b0000000 00:00 0   /fake2.so\n"
-      "720b2e0000-720b2f0000 r-xp c0000000 00:00 0   /fake3.so\n",
-      tf.path, 0660, getuid(), getgid()));
-
-  MapsFile maps(tf.path);
-
-  ASSERT_TRUE(maps.Parse());
-  ASSERT_EQ(3U, maps.Total());
-  auto it = maps.begin();
-  ASSERT_EQ(0x720b29b000U, it->start);
-  ASSERT_EQ(0x720b29e000U, it->end);
-  ASSERT_EQ(0xa0000000U, it->offset);
-  ASSERT_EQ(PROT_READ | PROT_EXEC, it->flags);
-  ASSERT_EQ("/fake.so", it->name);
-  ++it;
-  ASSERT_EQ(0x720b2b0000U, it->start);
-  ASSERT_EQ(0x720b2e0000U, it->end);
-  ASSERT_EQ(0xb0000000U, it->offset);
-  ASSERT_EQ(PROT_READ | PROT_EXEC, it->flags);
-  ASSERT_EQ("/fake2.so", it->name);
-  ++it;
-  ASSERT_EQ(0x720b2e0000U, it->start);
-  ASSERT_EQ(0x720b2f0000U, it->end);
-  ASSERT_EQ(0xc0000000U, it->offset);
-  ASSERT_EQ(PROT_READ | PROT_EXEC, it->flags);
-  ASSERT_EQ("/fake3.so", it->name);
-  ++it;
-  ASSERT_EQ(it, maps.end());
-}
-
-TEST_F(MapsTest, find) {
-  MapsBuffer maps("1000-2000 r--p 00000010 00:00 0 /system/lib/fake1.so\n"
-                  "3000-4000 -w-p 00000020 00:00 0 /system/lib/fake2.so\n"
-                  "6000-8000 --xp 00000030 00:00 0 /system/lib/fake3.so\n"
-                  "a000-b000 rw-p 00000040 00:00 0 /system/lib/fake4.so\n"
-                  "e000-f000 rwxp 00000050 00:00 0 /system/lib/fake5.so\n");
-  ASSERT_TRUE(maps.Parse());
-  ASSERT_EQ(5U, maps.Total());
-
-  ASSERT_TRUE(maps.Find(0x500) == nullptr);
-  ASSERT_TRUE(maps.Find(0x2000) == nullptr);
-  ASSERT_TRUE(maps.Find(0x5010) == nullptr);
-  ASSERT_TRUE(maps.Find(0x9a00) == nullptr);
-  ASSERT_TRUE(maps.Find(0xf000) == nullptr);
-  ASSERT_TRUE(maps.Find(0xf010) == nullptr);
-
-  MapInfo* info = maps.Find(0x1000);
-  ASSERT_TRUE(info != nullptr);
-  ASSERT_EQ(0x1000U, info->start);
-  ASSERT_EQ(0x2000U, info->end);
-  ASSERT_EQ(0x10U, info->offset);
-  ASSERT_EQ(PROT_READ, info->flags);
-  ASSERT_EQ("/system/lib/fake1.so", info->name);
-
-  info = maps.Find(0x3020);
-  ASSERT_TRUE(info != nullptr);
-  ASSERT_EQ(0x3000U, info->start);
-  ASSERT_EQ(0x4000U, info->end);
-  ASSERT_EQ(0x20U, info->offset);
-  ASSERT_EQ(PROT_WRITE, info->flags);
-  ASSERT_EQ("/system/lib/fake2.so", info->name);
-
-  info = maps.Find(0x6020);
-  ASSERT_TRUE(info != nullptr);
-  ASSERT_EQ(0x6000U, info->start);
-  ASSERT_EQ(0x8000U, info->end);
-  ASSERT_EQ(0x30U, info->offset);
-  ASSERT_EQ(PROT_EXEC, info->flags);
-  ASSERT_EQ("/system/lib/fake3.so", info->name);
-
-  info = maps.Find(0xafff);
-  ASSERT_TRUE(info != nullptr);
-  ASSERT_EQ(0xa000U, info->start);
-  ASSERT_EQ(0xb000U, info->end);
-  ASSERT_EQ(0x40U, info->offset);
-  ASSERT_EQ(PROT_READ | PROT_WRITE, info->flags);
-  ASSERT_EQ("/system/lib/fake4.so", info->name);
-
-  info = maps.Find(0xe500);
-  ASSERT_TRUE(info != nullptr);
-  ASSERT_EQ(0xe000U, info->start);
-  ASSERT_EQ(0xf000U, info->end);
-  ASSERT_EQ(0x50U, info->offset);
-  ASSERT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, info->flags);
-  ASSERT_EQ("/system/lib/fake5.so", info->name);
-}