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mutable-global-exports.s
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# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
#
# Should fail without mutable globals feature enabled.
# RUN: not wasm-ld --export-all %t.o -o %t.wasm 2>&1 | FileCheck -check-prefix=CHECK-ERR %s
# RUN: not wasm-ld --export=foo_global %t.o -o %t.wasm 2>&1 | FileCheck -check-prefix=CHECK-ERR %s
# RUN: wasm-ld --extra-features=mutable-globals --export=foo_global %t.o -o %t.wasm
# RUN: obj2yaml %t.wasm | FileCheck %s
# Explcitly check that __stack_pointer can be exported
# RUN: wasm-ld --extra-features=mutable-globals --export=__stack_pointer %t.o -o %t.wasm
# RUN: obj2yaml %t.wasm | FileCheck -check-prefix=CHECK-SP %s
# RUN: wasm-ld --extra-features=mutable-globals --export-all %t.o -o %t.wasm
# RUN: obj2yaml %t.wasm | FileCheck -check-prefix=CHECK-ALL %s
.globl _start
.globl foo_global
.globaltype foo_global, i32
foo_global:
_start:
.functype _start () -> ()
end_function
# Add a target feature and ensure that it is preserved when --extra-features is
# used above.
.section .custom_section.target_features,"",@
.int8 1
.int8 43
.int8 7
.ascii "atomics"
# CHECK-ERR: mutable global exported but 'mutable-globals' feature not present in inputs: `foo_global`. Use --no-check-features to suppress
# CHECK: - Type: EXPORT
# CHECK-NEXT: Exports:
# CHECK-NEXT: - Name: memory
# CHECK-NEXT: Kind: MEMORY
# CHECK-NEXT: Index: 0
# CHECK-NEXT: - Name: _start
# CHECK-NEXT: Kind: FUNCTION
# CHECK-NEXT: Index: 0
# CHECK-NEXT: - Name: foo_global
# CHECK-NEXT: Kind: GLOBAL
# CHECK-NEXT: Index: 1
# CHECK-NEXT: - Type: CODE
# CHECK-SP: - Type: EXPORT
# CHECK-SP-NEXT: Exports:
# CHECK-SP-NEXT: - Name: memory
# CHECK-SP-NEXT: Kind: MEMORY
# CHECK-SP-NEXT: Index: 0
# CHECK-SP-NEXT: - Name: __stack_pointer
# CHECK-SP-NEXT: Kind: GLOBAL
# CHECK-SP-NEXT: Index: 0
# CHECK-SP-NEXT: - Name: _start
# CHECK-SP-NEXT: Kind: FUNCTION
# CHECK-SP-NEXT: Index: 0
# CHECK-SP-NEXT: - Type: CODE
# CHECK-ALL: - Type: EXPORT
# CHECK-ALL-NEXT: Exports:
# CHECK-ALL-NEXT: - Name: memory
# CHECK-ALL-NEXT: Kind: MEMORY
# CHECK-ALL-NEXT: Index: 0
# CHECK-ALL-NEXT: - Name: __wasm_call_ctors
# CHECK-ALL-NEXT: Kind: FUNCTION
# CHECK-ALL-NEXT: Index: 0
# CHECK-ALL-NEXT: - Name: _start
# CHECK-ALL-NEXT: Kind: FUNCTION
# CHECK-ALL-NEXT: Index: 1
# CHECK-ALL-NEXT: - Name: foo_global
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 1
# CHECK-ALL-NEXT: - Name: __dso_handle
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 2
# CHECK-ALL-NEXT: - Name: __data_end
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 3
# CHECK-ALL-NEXT: - Name: __stack_low
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 4
# CHECK-ALL-NEXT: - Name: __stack_high
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 5
# CHECK-ALL-NEXT: - Name: __global_base
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 6
# CHECK-ALL-NEXT: - Name: __heap_base
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 7
# CHECK-ALL-NEXT: - Name: __heap_end
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 8
# CHECK-ALL-NEXT: - Name: __memory_base
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 9
# CHECK-ALL-NEXT: - Name: __table_base
# CHECK-ALL-NEXT: Kind: GLOBAL
# CHECK-ALL-NEXT: Index: 10
# CHECK-ALL-NEXT: - Type: CODE
# CHECK-ALL: Name: target_features
# CHECK-ALL-NEXT: Features:
# CHECK-ALL-NEXT: - Prefix: USED
# CHECK-ALL-NEXT: Name: atomics
# CHECK-ALL-NEXT: - Prefix: USED
# CHECK-ALL-NEXT: Name: mutable-globals
# CHECK-ALL-NEXT: ...