File: as-needed-weak.s

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llvm-toolchain-20 1%3A20.1.8-1
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# REQUIRES: x86

# RUN: echo '.globl foo; .type foo, @function; foo:' | \
# RUN:   llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t1.o
# RUN: ld.lld -shared -o %t1.so -soname libfoo %t1.o

# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2.o
# RUN: ld.lld -o %t.exe %t2.o --as-needed %t1.so
# RUN: llvm-readelf -d --dyn-syms %t.exe | FileCheck %s

# CHECK-NOT: libfoo

# CHECK:      Symbol table '.dynsym' contains 2 entries:
# CHECK-NEXT: Num:    Value          Size Type    Bind   Vis     Ndx Name
# CHECK-NEXT:   0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT UND
# CHECK-NEXT:   1: 0000000000000000     0 FUNC    WEAK   DEFAULT UND foo

.globl _start
.weak foo

_start:
  mov $foo, %eax
  callq foo