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author | Chris Lattner <sabre@nondot.org> | 2010-02-03 06:21:16 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2010-02-03 06:21:16 +0000 |
commit | ce2a725a72bb193f915f6c661144aa165fea0057 (patch) | |
tree | 1b10e87fe7f567a540473b8a69382fb481811c3e /lib/Target/X86/AsmPrinter | |
parent | d269a6e460a71a6c5c361a26c56c91fdb9486f45 (diff) | |
download | external_llvm-ce2a725a72bb193f915f6c661144aa165fea0057.zip external_llvm-ce2a725a72bb193f915f6c661144aa165fea0057.tar.gz external_llvm-ce2a725a72bb193f915f6c661144aa165fea0057.tar.bz2 |
make the x86 backend emit darwin stubs through mcstreamer
instead of textually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95206 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/AsmPrinter')
-rw-r--r-- | lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp b/lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp index 7ca7864..5dfb30e 100644 --- a/lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp +++ b/lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp @@ -27,6 +27,7 @@ #include "llvm/Type.h" #include "llvm/Assembly/Writer.h" #include "llvm/MC/MCContext.h" +#include "llvm/MC/MCExpr.h" #include "llvm/MC/MCSectionMachO.h" #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSymbol.h" @@ -502,14 +503,17 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) { OutStreamer.SwitchSection(TheSection); for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { - O << *Stubs[i].first << ":\n"; - // Get the MCSymbol without the $stub suffix. - O << "\t.indirect_symbol " << *Stubs[i].second; - O << "\n\thlt ; hlt ; hlt ; hlt ; hlt\n"; + // L_foo$stub: + OutStreamer.EmitLabel(Stubs[i].first); + // .indirect_symbol _foo + OutStreamer.EmitSymbolAttribute(Stubs[i].second, MCSA_IndirectSymbol); + // hlt; hlt; hlt; hlt; hlt hlt = 0xf4 = -12. + const char HltInsts[] = { -12, -12, -12, -12, -12 }; + OutStreamer.EmitBytes(StringRef(HltInsts, 5), 0/*addrspace*/); } - O << '\n'; Stubs.clear(); + OutStreamer.AddBlankLine(); } // Output stubs for external and common global variables. @@ -522,10 +526,15 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) { OutStreamer.SwitchSection(TheSection); for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { - O << *Stubs[i].first << ":\n\t.indirect_symbol " << *Stubs[i].second; - O << "\n\t.long\t0\n"; + // L_foo$non_lazy_ptr: + OutStreamer.EmitLabel(Stubs[i].first); + // .indirect_symbol _foo + OutStreamer.EmitSymbolAttribute(Stubs[i].second, MCSA_IndirectSymbol); + // .long 0 + OutStreamer.EmitIntValue(0, 4/*size*/, 0/*addrspace*/); } Stubs.clear(); + OutStreamer.AddBlankLine(); } Stubs = MMIMacho.GetHiddenGVStubList(); @@ -536,8 +545,16 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) { for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { O << *Stubs[i].first << ":\n" << MAI->getData32bitsDirective(); O << *Stubs[i].second << '\n'; + + // L_foo$non_lazy_ptr: + OutStreamer.EmitLabel(Stubs[i].first); + // .long _foo + OutStreamer.EmitValue(MCSymbolRefExpr::Create(Stubs[i].second, + OutContext), + 4/*size*/, 0/*addrspace*/); } Stubs.clear(); + OutStreamer.AddBlankLine(); } // Funny Darwin hack: This flag tells the linker that no global symbols |