Add debug info for link-time generated thunks.
Add debug info for method call thunks (currently unused) and
Baker read barrier thunks. Refactor debug info generation
for trampolines and record their sizes; change their names
to start with upper-case letters, so that they can be easily
generated as `#fn_name`.
This improved debug info must be generated by `dex2oat -g`,
the debug info generated by `oatdump --symbolize` remains
the same as before, except for the renamed trampolines and
an adjustment for "code delta", i.e. the Thumb mode bit.
Cortex-A53 erratum 843419 workaround thunks are not covered
by this CL.
Test: Manual; run-test --gdb -Xcompiler-option -g 160, pull
symbols for gdbclient, break in the introspection
entrypoint, check that gdb knows the new symbols
(and disassembles them) and `backtrace` works when
setting $pc to an address in the thunk.
Bug: 36141117
Change-Id: Id224b72cfa7a0628799c7db65e66e24c8517aabf
diff --git a/compiler/linker/mips/relative_patcher_mips.cc b/compiler/linker/mips/relative_patcher_mips.cc
index 6c974c3..408ac22 100644
--- a/compiler/linker/mips/relative_patcher_mips.cc
+++ b/compiler/linker/mips/relative_patcher_mips.cc
@@ -17,6 +17,7 @@
#include "linker/mips/relative_patcher_mips.h"
#include "compiled_method.h"
+#include "debug/method_debug_info.h"
namespace art {
namespace linker {
@@ -90,5 +91,10 @@
LOG(FATAL) << "UNIMPLEMENTED";
}
+std::vector<debug::MethodDebugInfo> MipsRelativePatcher::GenerateThunkDebugInfo(
+ uint32_t executable_offset ATTRIBUTE_UNUSED) {
+ return std::vector<debug::MethodDebugInfo>(); // No thunks added.
+}
+
} // namespace linker
} // namespace art