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[DebugInfo] Change default value of FDEPointerEncoding 

Summary:
If the encoding is not specified in CIE augmentation string, then it
should be DW_EH_PE_absptr instead of DW_EH_PE_omit.

(cherry picked from FBD8740274)
This commit is contained in:
Maksim Panchenko 2018-07-05 14:21:49 -07:00
parent 365613b404
commit d7b2474f83
1 changed files with 10 additions and 1 deletions
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11
bolt/llvm.patch
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@ -1411,7 +1411,7 @@ index 03e31746139..0436778e2e4 100644
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
diff --git a/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp b/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
index b9dc2151e06..9a4a6f024bb 100644
index b9dc2151e06..f3c7c81bb10 100644
--- a/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
+++ b/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
@@ -352,7 +352,8 @@ static void LLVM_ATTRIBUTE_NORETURN ReportError(uint32_t StartOffset,
@ -1434,6 +1434,15 @@ index b9dc2151e06..9a4a6f024bb 100644
}
// At this point, Offset points to the next field after Length.
@@ -399,7 +403,7 @@ void DWARFDebugFrame::parse(DWARFDataExtractor Data) {
// Parse the augmentation data for EH CIEs
StringRef AugmentationData("");
- uint32_t FDEPointerEncoding = DW_EH_PE_omit;
+ uint32_t FDEPointerEncoding = DW_EH_PE_absptr;
uint32_t LSDAPointerEncoding = DW_EH_PE_omit;
Optional<uint64_t> Personality;
Optional<uint32_t> PersonalityEncoding;
@@ -425,11 +429,16 @@ void DWARFDebugFrame::parse(DWARFDataExtractor Data) {
Personality = Data.getEncodedPointer(
&Offset, *PersonalityEncoding,