9abe8c4805
This puts handling of undefined symbols in a single location. Its also more in line with the ELF backend which only reports undefined symbols based on relocations. One side effect is that we no longer report undefined symbols that are only referenced in GC'd sections. This also fixes a crash reported in the emscripten toolchain: https://github.com/emscripten-core/emscripten/issues/8930. Differential Revision: https://reviews.llvm.org/D64280 llvm-svn: 365553
18 lines
693 B
LLVM
18 lines
693 B
LLVM
; RUN: llc -filetype=obj %s -o %t.o
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; RUN: not wasm-ld -o %t.wasm %t.o 2>&1 | FileCheck %s -check-prefix=UNDEF
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; RUN: not wasm-ld --allow-undefined -o %t.wasm %t.o 2>&1 | FileCheck %s -check-prefix=UNDEF
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; RUN: not wasm-ld --shared -o %t.wasm %t.o 2>&1 | FileCheck %s -check-prefix=SHARED
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target triple = "wasm32-unknown-unknown"
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@data_external = external global i32
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define i32 @_start() {
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entry:
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%0 = load i32, i32* @data_external, align 4
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ret i32 %0
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}
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; UNDEF: error: {{.*}}undefined-data.ll.tmp.o: undefined symbol: data_external
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; SHARED: error: {{.*}}undefined-data.ll.tmp.o: relocation R_WASM_MEMORY_ADDR_LEB cannot be used against symbol data_external; recompile with -fPIC
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