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a6367d9136
This change unifies how LTOModule and the backend obtain linker flags for globals: via a new TargetLoweringObjectFile member function named emitLinkerFlagsForGlobal. A new function LTOModule::getLinkerOpts() returns the list of linker flags as a single concatenated string. This change affects the C libLTO API: the function lto_module_get_*deplibs now exposes an empty list, and lto_module_get_*linkeropts exposes a single element which combines the contents of all observed flags. libLTO should never have tried to parse the linker flags; it is the linker's job to do so. Because linkers will need to be able to parse flags in regular object files, it makes little sense for libLTO to have a redundant mechanism for doing so. The new API is compatible with the old one. It is valid for a user to specify multiple linker flags in a single pragma directive like this: #pragma comment(linker, "/defaultlib:foo /defaultlib:bar") The previous implementation would not have exposed either flag via lto_module_get_*deplibs (as the test in TargetLoweringObjectFileCOFF::getDepLibFromLinkerOpt was case sensitive) and would have exposed "/defaultlib:foo /defaultlib:bar" as a single flag via lto_module_get_*linkeropts. This may have been a bug in the implementation, but it does give us a chance to fix the interface. Differential Revision: http://reviews.llvm.org/D10548 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241010 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| bugpoint | ||
| bugpoint-passes | ||
| dsymutil | ||
| gold | ||
| llc | ||
| lli | ||
| llvm-ar | ||
| llvm-as | ||
| llvm-bcanalyzer | ||
| llvm-c-test | ||
| llvm-config | ||
| llvm-cov | ||
| llvm-cxxdump | ||
| llvm-diff | ||
| llvm-dis | ||
| llvm-dwarfdump | ||
| llvm-extract | ||
| llvm-go | ||
| llvm-jitlistener | ||
| llvm-link | ||
| llvm-lto | ||
| llvm-mc | ||
| llvm-mcmarkup | ||
| llvm-nm | ||
| llvm-objdump | ||
| llvm-pdbdump | ||
| llvm-profdata | ||
| llvm-readobj | ||
| llvm-rtdyld | ||
| llvm-shlib | ||
| llvm-size | ||
| llvm-stress | ||
| llvm-symbolizer | ||
| lto | ||
| macho-dump | ||
| msbuild | ||
| obj2yaml | ||
| opt | ||
| verify-uselistorder | ||
| yaml2obj | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||
| Makefile | ||