[PATCH] D91455: [XCOFF][AIX] Generate LSDA data and compact unwind section on AIX
Jason Liu via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Nov 13 12:54:26 PST 2020
jasonliu created this revision.
jasonliu added reviewers: xingxue, hubert.reinterpretcast, cebowleratibm, DiggerLin, daltenty.
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AIX uses the existing EH infrastructure in clang and llvm.
The major differences would be
1. AIX do not have CFI instructions.
2. AIX uses a new personality routine, named __xlcxx_personality_v1. It doesn't use the GCC personality rountine, because the intractability is not there yet on AIX.
3. AIX do not use eh_frame sections. Instead, it would use a eh_info section (compat unwind section) to store the information about personality routine and LSDA data address.
https://reviews.llvm.org/D91455
Files:
clang/lib/CodeGen/CGCleanup.h
clang/lib/CodeGen/CGException.cpp
clang/test/CodeGenCXX/personality.cpp
llvm/include/llvm/Analysis/EHPersonalities.h
llvm/include/llvm/CodeGen/AsmPrinter.h
llvm/include/llvm/MC/MCTargetOptions.h
llvm/lib/Analysis/EHPersonalities.cpp
llvm/lib/CodeGen/AsmPrinter/AIXException.cpp
llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
llvm/lib/CodeGen/AsmPrinter/DwarfException.h
llvm/lib/CodeGen/AsmPrinter/EHStreamer.cpp
llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
llvm/lib/CodeGen/TargetPassConfig.cpp
llvm/lib/MC/MCAsmInfoXCOFF.cpp
llvm/lib/MC/MCObjectFileInfo.cpp
llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
llvm/test/CodeGen/PowerPC/aix-exception.ll
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