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TheRock/compiler/amd-llvm/lld/test/ELF/weak-undef-lib.s
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

47 lines
1.4 KiB
ArmAsm

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
# RUN: printf '.globl foo\nfoo: ret' | \
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t2.o
# RUN: ld.lld -shared -o %t.so %t1.o --start-lib %t2.o
# RUN: llvm-readobj --dyn-syms %t.so | FileCheck %s
# RUN: ld.lld -pie -o %t %t1.o --start-lib %t2.o
# RUN: llvm-readelf --dyn-syms %t | FileCheck %s --check-prefix=STATICPIE
# CHECK: Name: foo
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Weak
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Undefined
# RUN: ld.lld -pie -o %t %t1.o --start-lib %t2.o --no-dynamic-linker
# RUN: llvm-readelf --dyn-syms %t | FileCheck %s --check-prefix=STATICPIE
# STATICPIE: Symbol table '.dynsym' contains 1
## -u specifies a STB_DEFAULT undefined symbol, so the definition from %t2.o is
## fetched.
# RUN: ld.lld -u foo %t1.o --start-lib %t2.o -o %t1
# RUN: llvm-readobj --syms %t1 | FileCheck %s --check-prefix=CHECK-U
# CHECK-U: Name: foo
# CHECK-U: Binding:
# CHECK-U-SAME: Global
# CHECK-U: Section:
# CHECK-U-SAME: .text
## When the definition is not available, the error references the object file,
## not <internal>.
# RUN: not ld.lld -u foo %t1.o -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK-UERR
# CHECK-UERR: error: undefined symbol: foo
# CHECK-UERR-NEXT: >>> referenced by {{.*}}1.o
.weak foo
call foo@PLT
.data
.quad foo