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It's inefficient to have place the exception tables (which contain the LSDA)

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into the __DATA section. At launch time, dyld has to update most of the section
to fix up the type info pointers. It's better to place it into the __TEXT
section and use pc-rel indirect pointer encodings. Similar to the personality
routine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82274 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2009-09-18 21:14:36 +00:00
parent fb2e752e41
commit 296ab7e544
2 changed files with 43 additions and 8 deletions
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4
lib/Target/TargetLoweringObjectFile.cpp
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@ -782,8 +782,8 @@ void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
}
// Exception Handling.
LSDASection = getMachOSection("__DATA", "__gcc_except_tab", 0,
SectionKind::getDataRel());
LSDASection = getMachOSection("__TEXT", "__gcc_except_tab", 0,
SectionKind::getReadOnly());
EHFrameSection =
getMachOSection("__TEXT", "__eh_frame",
MCSectionMachO::S_COALESCED |