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Added initial support for small sections on Mips.

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Added gp_rel relocations to support addressing small section contents.
Added command line to specify small section threshold in bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53869 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes
2008-07-21 18:52:34 +00:00
parent 6116a73da4
commit 91fd532eb9
7 changed files with 86 additions and 28 deletions
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6
lib/Target/Mips/MipsSubtarget.cpp
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@ -22,6 +22,9 @@ cl::opt<bool> NotABICall("disable-mips-abicall", cl::Hidden,
cl::desc("Disable code for SVR4-style dynamic objects"));
cl::opt<bool> AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
cl::desc("Enable absolute call within abicall"));
cl::opt<unsigned> SSThreshold("mips-ssection-threshold", cl::Hidden,
cl::desc("Small data and bss section threshold size (default=8)"),
cl::init(8));
MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
const std::string &FS, bool little) :
@ -35,6 +38,9 @@ MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
ParseSubtargetFeatures(FS, CPU);
const std::string& TT = M.getTargetTriple();
// Small section size threshold
SSectionThreshold = SSThreshold;
// Is the target system Linux ?
if (TT.find("linux") == std::string::npos)
IsLinux = false;