mirror of
https://github.com/capstone-engine/llvm-capstone.git
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3b8d2be527
This change was originally landed in: 5000a1b4b9edeb9e994f2a5b36da8d48599bea49
It was reverted in: 061e071d8c9b98526f35cad55a918a4f1615afd4
This change adds support for a new WASM_SEG_FLAG_STRINGS flag in
the object format which works in a similar fashion to SHF_STRINGS
in the ELF world.
Unlike the ELF linker this support is currently limited:
- No support for SHF_MERGE (non-string merging)
- Always do full tail merging ("lo" can be merged with "hello")
- Only support single byte strings (p2align 0)
Like the ELF linker merging is only performed at `-O1` and above.
This fixes part of https://bugs.llvm.org/show_bug.cgi?id=48828,
although crucially it doesn't not currently support debug sections
because they are not represented by data segments (they are custom
sections)
Differential Revision: https://reviews.llvm.org/D97657
40 lines
600 B
CMake
40 lines
600 B
CMake
set(LLVM_TARGET_DEFINITIONS Options.td)
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tablegen(LLVM Options.inc -gen-opt-parser-defs)
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add_public_tablegen_target(WasmOptionsTableGen)
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add_lld_library(lldWasm
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Driver.cpp
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InputChunks.cpp
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InputFiles.cpp
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LTO.cpp
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MapFile.cpp
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MarkLive.cpp
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OutputSections.cpp
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OutputSegment.cpp
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Relocations.cpp
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SymbolTable.cpp
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Symbols.cpp
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SyntheticSections.cpp
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Writer.cpp
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WriterUtils.cpp
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LINK_COMPONENTS
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${LLVM_TARGETS_TO_BUILD}
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BinaryFormat
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Core
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Demangle
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LTO
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MC
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Object
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Option
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Passes
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Support
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LINK_LIBS
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lldCommon
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DEPENDS
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WasmOptionsTableGen
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intrinsics_gen
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)
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