lld/test/ELF/weak-undef-lib.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
   3 # RUN: echo -e '.globl foo\nfoo: ret' | \
   4 # RUN:   llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t2.o
   5
   6 # RUN: ld.lld -shared -o %t.so %t1.o --start-lib %t2.o
   7 # RUN: llvm-readobj --dyn-syms %t.so | FileCheck %s
   8
   9 # RUN: ld.lld -pie -o %t %t1.o --start-lib %t2.o
  10 # RUN: llvm-readobj --dyn-syms %t | FileCheck %s
  11
  12 # CHECK:      Name: foo
  13 # CHECK-NEXT: Value: 0x0
  14 # CHECK-NEXT: Size: 0
  15 # CHECK-NEXT: Binding: Weak
  16 # CHECK-NEXT: Type: None
  17 # CHECK-NEXT: Other: 0
  18 # CHECK-NEXT: Section: Undefined
  19
  20 ## -u specifies a STB_DEFAULT undefined symbol, so the definition from %t2.o is
  21 ## fetched.
  22 # RUN: ld.lld -u foo %t1.o --start-lib %t2.o -o %t1
  23 # RUN: llvm-readobj --syms %t1 | FileCheck %s --check-prefix=CHECK-U
  24
  25 # CHECK-U:      Name: foo
  26 # CHECK-U:      Binding:
  27 # CHECK-U-SAME:          Global
  28 # CHECK-U:      Section:
  29 # CHECK-U-SAME:          .text
  30
  31 .weak foo
  32 call foo@PLT
  33
  34 .data
  35 .quad foo