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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2015-02-17 20:48:01 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2015-02-17 20:48:01 +0000 |
| commit | 68fa249cb5a9755f05e437db618d85e0097de8c3 (patch) | |
| tree | b8a223ea649e474a993233c5738e73fba8e83932 /llvm/lib/MC/MCSectionELF.cpp | |
| parent | 3dcb3934c6072f5e2eed15fd63cdc1a35bb5cad4 (diff) | |
| download | bcm5719-llvm-68fa249cb5a9755f05e437db618d85e0097de8c3.tar.gz bcm5719-llvm-68fa249cb5a9755f05e437db618d85e0097de8c3.zip | |
Add r228980 back.
Add support for having multiple sections with the same name and comdat.
Using this in combination with -ffunction-sections allows LLVM to output a .o
file with mulitple sections named .text. This saves space by avoiding long
unique names of the form .text.<C++ mangled name>.
llvm-svn: 229541
Diffstat (limited to 'llvm/lib/MC/MCSectionELF.cpp')
| -rw-r--r-- | llvm/lib/MC/MCSectionELF.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCSectionELF.cpp b/llvm/lib/MC/MCSectionELF.cpp index fb364c87a03..da3868273a7 100644 --- a/llvm/lib/MC/MCSectionELF.cpp +++ b/llvm/lib/MC/MCSectionELF.cpp @@ -24,6 +24,9 @@ MCSectionELF::~MCSectionELF() {} // anchor. bool MCSectionELF::ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const { + if (Unique) + return false; + // FIXME: Does .section .bss/.data/.text work everywhere?? if (Name == ".text" || Name == ".data" || (Name == ".bss" && !MAI.usesELFSectionDirectiveForBSS())) @@ -144,6 +147,10 @@ void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI, printName(OS, Group->getName()); OS << ",comdat"; } + + if (Unique) + OS << ",unique"; + OS << '\n'; if (Subsection) |
