forked from OSchip/llvm-project
2658554aec
The fixes are to note that AArch64 has additional restrictions on when local relocations can be used. In particular, ld64 requires that relocations to cstring/cfstrings use linker visible symbols. Original message: In an assembly expression like bar: .long L0 + 1 the intended semantics is that bar will contain a pointer one byte past L0. In sections that are merged by content (strings, 4 byte constants, etc), a single position in the section doesn't give the linker enough information. For example, it would not be able to tell a relocation must point to the end of a string, since that would look just like the start of the next. The solution used in ELF to use relocation with symbols if there is a non-zero addend. In MachO before this patch we would just keep all symbols in some sections. This would miss some cases (only cstrings on x86_64 were implemented) and was inefficient since most relocations have an addend of 0 and can be represented without the symbol. This patch implements the non-zero addend logic for MachO too. llvm-svn: 226503 |
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| .. | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||
| Makefile | ||
| PPCAsmBackend.cpp | ||
| PPCELFObjectWriter.cpp | ||
| PPCFixupKinds.h | ||
| PPCMCAsmInfo.cpp | ||
| PPCMCAsmInfo.h | ||
| PPCMCCodeEmitter.cpp | ||
| PPCMCExpr.cpp | ||
| PPCMCExpr.h | ||
| PPCMCTargetDesc.cpp | ||
| PPCMCTargetDesc.h | ||
| PPCMachObjectWriter.cpp | ||
| PPCPredicates.cpp | ||
| PPCPredicates.h | ||