58f3c5e696
This supersedes https://github.com/llvm/llvm-project/pull/87818 and fixes https://github.com/llvm/llvm-project/issues/52767 When calculating arm64 thunks, we make a few assumptions that may not hold when considering code sections outside of `__text`: 1. That a section needs thunks only if its size is larger than the branch range. 2. That any calls into `__stubs` are necessarily forward jumps (that is, the section with the jump is ordered before `__stubs`) Sections like this exist in the wild, most prominently the `__lcxx_overrides` section introduced in https://github.com/llvm/llvm-project/pull/69498 This change: - Ensures that if one section in `__TEXT` gets thunks, all of them do. - Makes all code sections in `__TEXT` contiguous (and guaranteed to be placed before `__stubs`)
56 lines
1.1 KiB
Plaintext
56 lines
1.1 KiB
Plaintext
import("//llvm/utils/TableGen/tablegen.gni")
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tablegen("Options") {
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visibility = [ ":MachO" ]
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args = [ "-gen-opt-parser-defs" ]
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}
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static_library("MachO") {
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output_name = "lldMachO"
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configs += [ "//llvm/utils/gn/build:lld_code" ]
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deps = [
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":Options",
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"//lld/Common",
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"//llvm/lib/BinaryFormat",
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"//llvm/lib/Object",
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"//llvm/lib/Option",
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"//llvm/lib/Support",
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"//llvm/lib/Target:TargetsToBuild",
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"//llvm/lib/TargetParser",
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]
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include_dirs = [
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".",
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"//libunwind/include",
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]
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sources = [
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"Arch/ARM64.cpp",
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"Arch/ARM64Common.cpp",
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"Arch/ARM64_32.cpp",
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"Arch/X86_64.cpp",
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"ConcatOutputSection.cpp",
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"Driver.cpp",
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"DriverUtils.cpp",
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"Dwarf.cpp",
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"EhFrame.cpp",
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"ExportTrie.cpp",
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"ICF.cpp",
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"InputFiles.cpp",
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"InputSection.cpp",
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"LTO.cpp",
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"MapFile.cpp",
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"MarkLive.cpp",
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"ObjC.cpp",
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"OutputSection.cpp",
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"OutputSegment.cpp",
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"Relocations.cpp",
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"SectionPriorities.cpp",
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"Sections.cpp",
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"SymbolTable.cpp",
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"Symbols.cpp",
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"SyntheticSections.cpp",
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"Target.cpp",
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"UnwindInfoSection.cpp",
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"Writer.cpp",
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]
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}
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