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| author | Simon Brenner <olsner@gmail.com> | 2015-09-19 15:23:51 +0200 |
|---|---|---|
| committer | Thomas Miedema <thomasmiedema@gmail.com> | 2015-09-19 15:23:51 +0200 |
| commit | bb0897f60abcce697a1038baba86923eb8baa971 (patch) | |
| tree | 23e2b7e9ce92e0d8c6a641833264858aa0923862 /compiler/codeGen/StgCmmUtils.hs | |
| parent | c8d438fb027cbefa31941d8397539c481a03a74f (diff) | |
| download | haskell-wip/D1242.tar.gz | |
Implement function-sections for Haskell code, #8405wip/D1242
Summary:
This adds a flag -split-sections that does similar things to -split-objs, but
using sections in single object files instead of relying on the Satanic
Splitter and other abominations. This is very similar to the GCC flags
-ffunction-sections and -fdata-sections.
The --gc-sections linker flag, which allows unused sections to actually
be removed, is added to all link commands (if the linker supports it) so that
space savings from having base compiled with sections can be realized.
Supported both in LLVM and the native code-gen, in theory for all
architectures, but really tested on x86 only.
In the GHC build, a new SplitSections variable enables -split-sections for
relevant parts of the build.
Test Plan: validate with both settings of SplitSections
Reviewers: simonmar, austin, dterei, bgamari
Subscribers: erikd, kgardas, thomie
Differential Revision: https://phabricator.haskell.org/D1242
GHC Trac Issues: #8405
Diffstat (limited to 'compiler/codeGen/StgCmmUtils.hs')
| -rw-r--r-- | compiler/codeGen/StgCmmUtils.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/codeGen/StgCmmUtils.hs b/compiler/codeGen/StgCmmUtils.hs index db771c2f9a..c6d673978b 100644 --- a/compiler/codeGen/StgCmmUtils.hs +++ b/compiler/codeGen/StgCmmUtils.hs @@ -306,7 +306,7 @@ baseRegOffset _ reg = pprPanic "baseRegOffset:" (ppr reg) emitDataLits :: CLabel -> [CmmLit] -> FCode () -- Emit a data-segment data block -emitDataLits lbl lits = emitDecl (mkDataLits Data lbl lits) +emitDataLits lbl lits = emitDecl (mkDataLits (Section Data lbl) lbl lits) emitRODataLits :: CLabel -> [CmmLit] -> FCode () -- Emit a read-only data block |