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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2015-02-12 23:29:51 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2015-02-12 23:29:51 +0000 |
| commit | b6a812ebb10c074266d6e4f9d2e2405bf57e4788 (patch) | |
| tree | a108b29b58d3e0b9b9bdf17a74d667d207a3cc10 /llvm/lib/MC/MCSectionELF.cpp | |
| parent | a12fcb790fb3694c6fcdf14047be72283ae4a0ee (diff) | |
| download | bcm5719-llvm-b6a812ebb10c074266d6e4f9d2e2405bf57e4788.tar.gz bcm5719-llvm-b6a812ebb10c074266d6e4f9d2e2405bf57e4788.zip | |
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: 228980
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) |
