lld/test/ELF/obj-preempt-dso.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t && split-file %s %t && cd %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64 a.s -o a.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64 b.s -o b.o
   5 # RUN: ld.lld -shared --version-script=b.ver b.o -o b.so
   6 # RUN: ld.lld --version-script=a.ver a.o b.so -o a0
   7 # RUN: llvm-nm -D a0 | FileCheck %s
   8 # RUN: ld.lld --version-script=a.ver b.so a.o -o a1
   9 # RUN: llvm-nm -D a1 | FileCheck %s
  10
  11 # CHECK:      T a1{{$}}
  12 # CHECK-NEXT: T a2{{$}}
  13 # CHECK-NEXT: T b1{{$}}
  14 # CHECK-NEXT: U b2{{$}}
  15 # CHECK-NEXT: T c1@v1
  16 # CHECK-NEXT: T c2@@v2
  17 # CHECK-NEXT: T c3{{$}}
  18 # CHECK-NEXT: T c4@@v3
  19 # CHECK-NOT:  {{.}}
  20
  21 #--- a.s
  22 .globl _start, a1, a2, a3, b1, c1, c2, c3, c4
  23 _start:
  24 a1: a2: ## defined in b.so and a
  25 .hidden a3
  26 a3: ## defined in b.so; hidden in a
  27 b1: ## protected in b.so; defined in a
  28 .symver c1, c1@v1, remove
  29 c1: ## non-default version in b.so and a
  30 c2: ## default version in b.so and a
  31 c3: ## default version in b.so; unversioned in a
  32 c4: ## default version in b.so; another version in a
  33
  34 .data
  35   .quad b2
  36
  37 #--- a.ver
  38 v1 {};
  39 v2 { c2; };
  40 v3 { c4; };
  41
  42 #--- b.s
  43 .globl a1, a2, a3, b1, b2, c1, c2, c3, c4
  44 .type a1,@function
  45 a1: a2: a3:
  46 .protected b1, b2
  47 b1:
  48 b2:
  49 .symver c1, c1@v1
  50 c1:
  51 c2:
  52 c3:
  53 c4:
  54
  55 #--- b.ver
  56 v1 {};
  57 v2 { c2; c3; c4; };