libunwindstack: Add Memory::ReadTag() function for reading memory tags.
This uses an experimental Linux kernel API for reading the tags across
processes using ptrace.
Bug: 135772972
Test: Unit tests pass.
Change-Id: Ib1a09d9219166011de80cf250b756bb8a4bcdb0a
diff --git a/libunwindstack/MemoryCache.h b/libunwindstack/MemoryCache.h
index 769d907..d97640d 100644
--- a/libunwindstack/MemoryCache.h
+++ b/libunwindstack/MemoryCache.h
@@ -33,6 +33,7 @@
virtual ~MemoryCache() = default;
size_t Read(uint64_t addr, void* dst, size_t size) override;
+ long ReadTag(uint64_t addr) override { return impl_->ReadTag(addr); }
void Clear() override { cache_.clear(); }