Fix issues in libunwindstack.
- Add a load_bias field in MapInfo so that it can be loaded offline,
and also so it can be cached.
- Add an Add function to the Maps class so that it's possible to manually
create a map.
- Remove the OfflineMaps class since I haven't found a reason for this to
exist.
- Add a pointer to the gnu debugdata compressed section in the interface
itself and modify the step path to try eh_frame, then debug_frame, then
gnu_debugdata. This way arm can add exidx as the last step behind
gnu_debugdata. Add an offline test to verify the order of unwind.
- Fix x86_64_ucontext_t since it was a different size on 32 bit and 64 bit
systems.
Test: Pass new unit tests.
Change-Id: I978b70d6c244bd307c62a29886d24c1a8cb2af23
diff --git a/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp b/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp
index 44a73a8..631036b 100644
--- a/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp
+++ b/libunwindstack/tests/MapInfoGetLoadBiasTest.cpp
@@ -68,12 +68,23 @@
EXPECT_EQ(0U, info.GetLoadBias(process_memory_));
}
+TEST_F(MapInfoGetLoadBiasTest, load_bias_cached_from_elf) {
+ map_info_->elf = elf_container_.release();
+
+ elf_->FakeSetLoadBias(0);
+ EXPECT_EQ(0U, map_info_->GetLoadBias(process_memory_));
+
+ elf_->FakeSetLoadBias(0x1000);
+ EXPECT_EQ(0U, map_info_->GetLoadBias(process_memory_));
+}
+
TEST_F(MapInfoGetLoadBiasTest, elf_exists) {
map_info_->elf = elf_container_.release();
elf_->FakeSetLoadBias(0);
EXPECT_EQ(0U, map_info_->GetLoadBias(process_memory_));
+ map_info_->load_bias = static_cast<uint64_t>(-1);
elf_->FakeSetLoadBias(0x1000);
EXPECT_EQ(0x1000U, map_info_->GetLoadBias(process_memory_));
}
@@ -141,6 +152,15 @@
EXPECT_EQ(0xe000U, map_info_->GetLoadBias(process_memory_));
}
+TEST_F(MapInfoGetLoadBiasTest, elf_exists_in_memory_cached) {
+ InitElfData(memory_, map_info_->start);
+
+ EXPECT_EQ(0xe000U, map_info_->GetLoadBias(process_memory_));
+
+ memory_->Clear();
+ EXPECT_EQ(0xe000U, map_info_->GetLoadBias(process_memory_));
+}
+
TEST_F(MapInfoGetLoadBiasTest, multiple_thread_elf_exists_in_memory) {
InitElfData(memory_, map_info_->start);