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DebugInfo: PR14728: TLS support

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Based on GCC's output for TLS variables (OP_constNu, x@dtpoff,
OP_lo_user), this implements debug info support for TLS in ELF. Verified
that this output is correct/sufficient on Linux (using gold - if you're
using binutils-ld, you'll need something with the fix for
http://sourceware.org/bugzilla/show_bug.cgi?id=15685 in it).

Support on non-ELF is sort of "arbitrary" at the moment - if Apple folks
want to discuss (or just go ahead & implement) how this should work in
MachO, etc, I'm open.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185203 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2013-06-28 20:05:11 +00:00
parent 95e72c90e4
commit 59eaa38746
6 changed files with 69 additions and 3 deletions
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3
include/llvm/CodeGen/TargetLoweringObjectFileImpl.h
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@ -72,6 +72,9 @@ public:
getStaticCtorSection(unsigned Priority = 65535) const;
virtual const MCSection *
getStaticDtorSection(unsigned Priority = 65535) const;
/// \brief Describe a TLS variable address within debug info.
virtual const MCSymbolRefExpr *getDebugThreadLocalSymbol(const MCSymbol *Sym) const;
};