diff options
Diffstat (limited to 'libcxxabi/src/cxa_personality.cpp')
| -rw-r--r-- | libcxxabi/src/cxa_personality.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libcxxabi/src/cxa_personality.cpp b/libcxxabi/src/cxa_personality.cpp index c2ee3fdf18a..1c80898cbeb 100644 --- a/libcxxabi/src/cxa_personality.cpp +++ b/libcxxabi/src/cxa_personality.cpp @@ -314,8 +314,18 @@ static const void* read_target2_value(const void* ptr) uintptr_t offset = *reinterpret_cast<const uintptr_t*>(ptr); if (!offset) return 0; + // "ARM EABI provides a TARGET2 relocation to describe these typeinfo + // pointers. The reason being it allows their precise semantics to be + // deferred to the linker. For bare-metal they turn into absolute + // relocations. For linux they turn into GOT-REL relocations." + // https://gcc.gnu.org/ml/gcc-patches/2009-08/msg00264.html +#if LIBCXXABI_BAREMETAL + return reinterpret_cast<const void*>(reinterpret_cast<uintptr_t>(ptr) + + offset); +#else return *reinterpret_cast<const void **>(reinterpret_cast<uintptr_t>(ptr) + offset); +#endif } static const __shim_type_info* |
