305b0343ce
In a very recent change I introduced a --no-export-default flag but after conferring with others it seems that this feature already exists in gnu GNU ld and lld in the form the --export-dynamic flag which is off by default. This change replaces export-default with export-dynamic and also changes the default to match the traditional linker behaviour. Now, by default, only the entry point is exported. If other symbols are required by the embedder then --export-dynamic or --export can be used to export all visibility hidden symbols or individual symbols respectively. This change touches a lot of tests that were relying on symbols being exported by default. I imagine it will also effect many users but do think the change is worth it match of the traditional behaviour and flag names. Differential Revision: https://reviews.llvm.org/D52587 llvm-svn: 343265
89 lines
3.3 KiB
LLVM
89 lines
3.3 KiB
LLVM
; RUN: llc -filetype=obj -o %t.o %s
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; RUN: wasm-ld --export=start_alias %t.o -o %t.wasm
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; RUN: obj2yaml %t.wasm | FileCheck %s
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target triple = "wasm32-unknown-unknown"
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@start_alias = alias void (), void ()* @_start
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; Function Attrs: nounwind uwtable
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define void @_start() local_unnamed_addr #1 {
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entry:
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ret void
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}
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; CHECK: --- !WASM
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; CHECK-NEXT: FileHeader:
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; CHECK-NEXT: Version: 0x00000001
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; CHECK-NEXT: Sections:
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; CHECK-NEXT: - Type: TYPE
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; CHECK-NEXT: Signatures:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: ReturnType: NORESULT
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; CHECK-NEXT: ParamTypes:
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; CHECK-NEXT: - Type: FUNCTION
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; CHECK-NEXT: FunctionTypes: [ 0, 0 ]
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; CHECK-NEXT: - Type: TABLE
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; CHECK-NEXT: Tables:
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; CHECK-NEXT: - ElemType: ANYFUNC
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; CHECK-NEXT: Limits:
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; CHECK-NEXT: Flags: [ HAS_MAX ]
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; CHECK-NEXT: Initial: 0x00000001
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; CHECK-NEXT: Maximum: 0x00000001
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; CHECK-NEXT: - Type: MEMORY
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; CHECK-NEXT: Memories:
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; CHECK-NEXT: - Initial: 0x00000002
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; CHECK-NEXT: - Type: GLOBAL
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; CHECK-NEXT: Globals:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: Type: I32
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; CHECK-NEXT: Mutable: true
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; CHECK-NEXT: InitExpr:
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; CHECK-NEXT: Opcode: I32_CONST
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; CHECK-NEXT: Value: 66560
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; CHECK-NEXT: - Index: 1
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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: 66560
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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: 1024
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; CHECK-NEXT: - Type: EXPORT
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; CHECK-NEXT: Exports:
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; CHECK-NEXT: - Name: memory
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; CHECK-NEXT: Kind: MEMORY
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; CHECK-NEXT: Index: 0
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; CHECK-NEXT: - Name: __heap_base
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; CHECK-NEXT: Kind: GLOBAL
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; CHECK-NEXT: Index: 1
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; CHECK-NEXT: - Name: __data_end
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; CHECK-NEXT: Kind: GLOBAL
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; CHECK-NEXT: Index: 2
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; CHECK-NEXT: - Name: _start
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Index: 1
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; CHECK-NEXT: - Name: start_alias
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Index: 1
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; CHECK-NEXT: - Type: CODE
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; CHECK-NEXT: Functions:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: Locals:
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; CHECK-NEXT: Body: 0B
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: Locals:
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; CHECK-NEXT: Body: 0B
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; CHECK-NEXT: - Type: CUSTOM
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; CHECK-NEXT: Name: name
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; CHECK-NEXT: FunctionNames:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: Name: __wasm_call_ctors
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: Name: _start
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; CHECK-NEXT: ...
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