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Commit 0f794a1c authored by android-build-team Robot's avatar android-build-team Robot
Browse files

Snap for 6456040 from 64021d83 to rvc-release 

Change-Id: I1b5d829fa886ff37fa693ac93635e5dc1f4521b5
parents 74210e87 64021d83

fs_mgr/libsnapshot/partition_cow_creator.cpp

+7 −0
Original line number Diff line number Diff line
@@ -181,6 +181,13 @@ std::optional<PartitionCowCreator::Return> PartitionCowCreator::Run() { 
    ret.snapshot_status.set_device_size(target_partition->size());

    ret.snapshot_status.set_snapshot_size(target_partition->size());



    if (ret.snapshot_status.snapshot_size() == 0) {

        LOG(INFO) << "Not creating snapshot for partition " << ret.snapshot_status.name();

        ret.snapshot_status.set_cow_partition_size(0);

        ret.snapshot_status.set_cow_file_size(0);

        return ret;

    }



    // Being the COW partition virtual, its size doesn't affect the storage

    // memory that will be occupied by the target.

    // The actual storage space is affected by the COW file, whose size depends

libunwindstack/Maps.cpp

+2 −0
Original line number Diff line number Diff line
@@ -159,6 +159,8 @@ bool LocalUpdatableMaps::Reparse() { 
        search_map_idx = old_map_idx + 1;

        if (new_map_idx + 1 < maps_.size()) {

          maps_[new_map_idx + 1]->prev_map = info.get();

          maps_[new_map_idx + 1]->prev_real_map =

              info->IsBlank() ? info->prev_real_map : info.get();

        }

        maps_[new_map_idx] = nullptr;

        total_entries--;

libunwindstack/tests/LocalUpdatableMapsTest.cpp

+99 −0
Original line number Diff line number Diff line
@@ -271,4 +271,103 @@ TEST_F(LocalUpdatableMapsTest, all_new_maps) { 
  EXPECT_TRUE(map_info->name.empty());

}



TEST_F(LocalUpdatableMapsTest, add_map_prev_name_updated) {

  TemporaryFile tf;

  ASSERT_TRUE(

      android::base::WriteStringToFile("3000-4000 rwxp 00000 00:00 0\n"

                                       "8000-9000 r-xp 00000 00:00 0\n"

                                       "9000-a000 r-xp 00000 00:00 0\n",

                                       tf.path));



  maps_.TestSetMapsFile(tf.path);

  ASSERT_TRUE(maps_.Reparse());

  ASSERT_EQ(3U, maps_.Total());



  MapInfo* map_info = maps_.Get(2);

  ASSERT_TRUE(map_info != nullptr);

  EXPECT_EQ(0x9000U, map_info->start);

  EXPECT_EQ(0xA000U, map_info->end);

  EXPECT_EQ(0U, map_info->offset);

  EXPECT_EQ(PROT_READ | PROT_EXEC, map_info->flags);

  EXPECT_TRUE(map_info->name.empty());

  EXPECT_EQ(maps_.Get(1), map_info->prev_map);

}



TEST_F(LocalUpdatableMapsTest, add_map_prev_real_name_updated) {

  TemporaryFile tf;

  ASSERT_TRUE(

      android::base::WriteStringToFile("3000-4000 r-xp 00000 00:00 0 /fake/lib.so\n"

                                       "4000-5000 ---p 00000 00:00 0\n"

                                       "7000-8000 r-xp 00000 00:00 0 /fake/lib1.so\n"

                                       "8000-9000 ---p 00000 00:00 0\n",

                                       tf.path));



  maps_.TestSetMapsFile(tf.path);

  ASSERT_TRUE(maps_.Reparse());

  ASSERT_EQ(4U, maps_.Total());



  MapInfo* map_info = maps_.Get(2);

  ASSERT_TRUE(map_info != nullptr);

  EXPECT_EQ(0x7000U, map_info->start);

  EXPECT_EQ(0x8000U, map_info->end);

  EXPECT_EQ(0U, map_info->offset);

  EXPECT_EQ(PROT_READ | PROT_EXEC, map_info->flags);

  EXPECT_EQ(maps_.Get(0), map_info->prev_real_map);

  EXPECT_EQ(maps_.Get(1), map_info->prev_map);

  EXPECT_EQ("/fake/lib1.so", map_info->name);



  map_info = maps_.Get(3);

  ASSERT_TRUE(map_info != nullptr);

  EXPECT_EQ(0x8000U, map_info->start);

  EXPECT_EQ(0x9000U, map_info->end);

  EXPECT_EQ(0U, map_info->offset);

  EXPECT_TRUE(map_info->IsBlank());

  EXPECT_EQ(maps_.Get(2), map_info->prev_real_map);

  EXPECT_EQ(maps_.Get(2), map_info->prev_map);

  EXPECT_TRUE(map_info->name.empty());



  ASSERT_TRUE(

      android::base::WriteStringToFile("3000-4000 r-xp 00000 00:00 0 /fake/lib.so\n"

                                       "4000-5000 ---p 00000 00:00 0\n"

                                       "7000-8000 r-xp 00000 00:00 0 /fake/lib1.so\n"

                                       "8000-9000 ---p 00000 00:00 0\n"

                                       "9000-a000 r-xp 00000 00:00 0 /fake/lib2.so\n"

                                       "a000-b000 r-xp 00000 00:00 0 /fake/lib3.so\n",

                                       tf.path));



  maps_.TestSetMapsFile(tf.path);

  ASSERT_TRUE(maps_.Reparse());

  ASSERT_EQ(6U, maps_.Total());



  map_info = maps_.Get(2);

  ASSERT_TRUE(map_info != nullptr);

  EXPECT_EQ(0x7000U, map_info->start);

  EXPECT_EQ(0x8000U, map_info->end);

  EXPECT_EQ(0U, map_info->offset);

  EXPECT_EQ(PROT_READ | PROT_EXEC, map_info->flags);

  EXPECT_EQ("/fake/lib1.so", map_info->name);

  EXPECT_EQ(maps_.Get(1), map_info->prev_map);

  EXPECT_EQ(maps_.Get(0), map_info->prev_real_map);



  map_info = maps_.Get(4);

  ASSERT_TRUE(map_info != nullptr);

  EXPECT_EQ(0x9000U, map_info->start);

  EXPECT_EQ(0xA000U, map_info->end);

  EXPECT_EQ(0U, map_info->offset);

  EXPECT_EQ(PROT_READ | PROT_EXEC, map_info->flags);

  EXPECT_EQ("/fake/lib2.so", map_info->name);

  EXPECT_EQ(maps_.Get(3), map_info->prev_map);

  EXPECT_EQ(maps_.Get(2), map_info->prev_real_map);



  map_info = maps_.Get(5);

  ASSERT_TRUE(map_info != nullptr);

  EXPECT_EQ(0xA000U, map_info->start);

  EXPECT_EQ(0xB000U, map_info->end);

  EXPECT_EQ(0U, map_info->offset);

  EXPECT_EQ(PROT_READ | PROT_EXEC, map_info->flags);

  EXPECT_EQ("/fake/lib3.so", map_info->name);

  EXPECT_EQ(maps_.Get(4), map_info->prev_map);

  EXPECT_EQ(maps_.Get(4), map_info->prev_real_map);

}



}  // namespace unwindstack