a5cd5d351d
Instead of always generating __wasm_apply_data_relocs when relevant options like -pie and -shared are specified, generate it only when the relevant relocations are actually necessary. Note: omitting empty __wasm_apply_data_relocs is not a problem because the export is optional in the spec (DynamicLinking.md) and all runtime linker implementations I'm aware of implement it that way. (emscripten, toywasm, wasm-tools) Motivations: * This possibly reduces the module size * This is also a preparation to fix https://github.com/llvm/llvm-project/issues/107387, for which it isn't obvious if we need these relocations at the time of createSyntheticSymbols. (unless we introduce a new explicit option like --non-pie-dynamic-link.)
46 lines
1.2 KiB
ArmAsm
46 lines
1.2 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
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# RUN: wasm-ld -shared --experimental-pic -o %t.so %t.o
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# RUN: obj2yaml %t.so | FileCheck %s
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.section .tdata.tls1,"",@
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.globl tls1
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.p2align 2
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tls1:
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.int32 1
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.size tls1, 4
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.section .custom_section.target_features,"",@
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.int8 3
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.int8 43
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.int8 7
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.ascii "atomics"
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.int8 43
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.int8 11
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.ascii "bulk-memory"
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.int8 43
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.int8 15
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.ascii "mutable-globals"
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# CHECK: ExportInfo:
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# CHECK-NEXT: - Name: tls1
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# CHECK-NEXT: Flags: [ TLS ]
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# CHECK-NEXT: - Type: TYPE
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# CHECK: - Type: GLOBAL
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# CHECK-NEXT: Globals:
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# CHECK-NEXT: - Index: 2
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# CHECK-NEXT: Type: I32
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# CHECK-NEXT: Mutable: false
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# CHECK-NEXT: InitExpr:
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# CHECK-NEXT: Opcode: I32_CONST
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# CHECK-NEXT: Value: 0
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# CHECK: - Type: EXPORT
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# CHECK-NEXT: Exports:
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# CHECK-NEXT: - Name: __wasm_call_ctors
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# CHECK-NEXT: Kind: FUNCTION
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# CHECK-NEXT: Index: 0
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# CHECK-NEXT: - Name: tls1
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# CHECK-NEXT: Kind: GLOBAL
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# CHECK-NEXT: Index: 2
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