Add ability to read jit gdb data.
Changes:
- New JitDebug class to handle all of the jit gdb interface.
- Add unit tests for all, along with new offline test using debug data.
- Add new Memory type called MemoryOfflineParts that has multiple
MemoryOffline objects to support the offline test.
- Update the tools to use the JitDebug object.
- Modify libbacktrace to use the JitDebug, but only looking in libart.so
and libartd.so.
- Change the Format32Bits to Is32Bit since it's more accurate and I use
it in a different context where original name didn't make sense.
- Add a new function to find global variables in an elf file
(GetGlobalVariable).
- Add a new function to determine if a pc is valid for this elf (IsValidPc).
Bug: 68396769
Test: Ran new unit tests. Added new offline test that uses jit debug data.
Test: Ran art test that generates jit data and verified a crash unwinds
Test: through the jit data.
Change-Id: I6e7ee2f5bab2242028a06feece156dff21c0a974
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index 133f3b9..484bc7d 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -55,6 +55,7 @@
"Elf.cpp",
"ElfInterface.cpp",
"ElfInterfaceArm.cpp",
+ "JitDebug.cpp",
"Log.cpp",
"MapInfo.cpp",
"Maps.cpp",
@@ -128,6 +129,7 @@
"tests/ElfInterfaceTest.cpp",
"tests/ElfTest.cpp",
"tests/ElfTestUtils.cpp",
+ "tests/JitDebugTest.cpp",
"tests/LogFake.cpp",
"tests/MapInfoGetElfTest.cpp",
"tests/MapInfoGetLoadBiasTest.cpp",
@@ -168,6 +170,7 @@
data: [
"tests/files/elf32.xz",
"tests/files/elf64.xz",
+ "tests/files/offline/jit_debug_x86_32/*",
"tests/files/offline/gnu_debugdata_arm32/*",
"tests/files/offline/straddle_arm32/*",
"tests/files/offline/straddle_arm64/*",