lld/test/COFF/weak-external-cycle.test

   1 REQUIRES: x86
   2 RUN: split-file %s %t.dir && cd %t.dir
   3
   4 RUN: llvm-mc -filetype=obj -triple=x86_64-windows test.s -o test.obj
   5 RUN: llvm-mc -filetype=obj -triple=x86_64-windows sym2.s -o sym2.obj
   6 RUN: llvm-mc -filetype=obj -triple=x86_64-windows def.s -o def.obj
   7
   8 RUN: not lld-link -machine:amd64 -dll -noentry -out:test.dll test.obj sym2.obj 2>&1 | FileCheck -check-prefix=ERR %s
   9
  10 ERR:      error: undefined symbol: testsym
  11 ERR-NEXT: >>> referenced by test.obj
  12 ERR-EMPTY:
  13 ERR-NEXT: error: undefined symbol: sym1
  14 ERR-NEXT: >>> referenced by test.obj
  15 ERR-NEXT: >>> referenced by sym2.obj
  16 ERR-EMPTY:
  17 ERR-NEXT: error: undefined symbol: sym2
  18 ERR-NEXT: >>> referenced by test.obj
  19 ERR-NEXT: >>> referenced by sym2.obj
  20
  21 Depending on symbol processing order, we may have temporary weak reference cycles:
  22
  23 RUN: lld-link -machine:amd64 -dll -noentry -out:test.dll test.obj sym2.obj def.obj
  24 RUN: lld-link -machine:amd64 -dll -noentry -out:test.dll test.obj def.obj sym2.obj
  25 RUN: lld-link -machine:amd64 -dll -noentry -out:test.dll def.obj test.obj sym2.obj
  26
  27 #--- test.s
  28     .weak testsym
  29 .set testsym, sym1
  30     .weak sym1
  31 .set sym1, sym2
  32
  33 #--- sym2.s
  34     .weak sym2
  35 .set sym2, sym1
  36
  37 #--- def.s
  38     .globl sym1
  39     .data
  40 sym1:
  41     .word 0