Add a relocation visitor to lib object. This works via caching relocated
values in a map that can be passed to consumers. Add a testcase that
ensures this works for llvm-dwarfdump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167558 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/DebugInfo/DWARFFormValue.cpp b/lib/DebugInfo/DWARFFormValue.cpp
index c9ecbbb..fea9fd7 100644
--- a/lib/DebugInfo/DWARFFormValue.cpp
+++ b/lib/DebugInfo/DWARFFormValue.cpp
@@ -10,6 +10,7 @@
#include "DWARFFormValue.h"
#include "DWARFCompileUnit.h"
#include "DWARFContext.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
@@ -98,8 +99,16 @@
indirect = false;
switch (Form) {
case DW_FORM_addr:
- case DW_FORM_ref_addr:
- Value.uval = data.getUnsigned(offset_ptr, cu->getAddressByteSize());
+ case DW_FORM_ref_addr: {
+ RelocAddrMap::const_iterator AI
+ = cu->getContext().relocMap().find(*offset_ptr);
+ if (AI != cu->getContext().relocMap().end()) {
+ const std::pair<uint8_t, int64_t> &R = AI->second;
+ Value.uval = R.second;
+ *offset_ptr += R.first;
+ } else
+ Value.uval = data.getUnsigned(offset_ptr, cu->getAddressByteSize());
+ }
break;
case DW_FORM_exprloc:
case DW_FORM_block:
@@ -138,9 +147,17 @@
case DW_FORM_sdata:
Value.sval = data.getSLEB128(offset_ptr);
break;
- case DW_FORM_strp:
- Value.uval = data.getU32(offset_ptr);
+ case DW_FORM_strp: {
+ RelocAddrMap::const_iterator AI
+ = cu->getContext().relocMap().find(*offset_ptr);
+ if (AI != cu->getContext().relocMap().end()) {
+ const std::pair<uint8_t, int64_t> &R = AI->second;
+ Value.uval = R.second;
+ *offset_ptr += R.first;
+ } else
+ Value.uval = data.getU32(offset_ptr);
break;
+ }
case DW_FORM_udata:
case DW_FORM_ref_udata:
Value.uval = data.getULEB128(offset_ptr);