lld/test/ELF/verneed-shared.s

   1 # REQUIRES: x86
   2 # RUN: echo 'v1 { f; }; v2 { g; };' > %t.ver
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   4 # RUN: ld.lld -shared --version-script %t.ver %t.o -o %t.so
   5
   6 # RUN: ld.lld --version-script %t.ver %t.o %t.so -o /dev/null -y f@v1 | \
   7 # RUN:   FileCheck --check-prefix=TRACE %s --implicit-check-not=f@v1
   8
   9 ## TRACE:      {{.*}}.o: definition of f@v1
  10 ## TRACE-NEXT: {{.*}}.so: shared definition of f@v1
  11
  12 # RUN: echo '.symver f,f@v1; .symver g,g@v2; call f; call g' | \
  13 # RUN:   llvm-mc -filetype=obj -triple=x86_64 - -o %t1.o
  14 # RUN: ld.lld -shared %t1.o %t.so -o %t1.so
  15
  16 ## Test that we can parse SHT_GNU_verneed to know that the undefined symbols in
  17 ## %t1.so are called 'f@v1' and 'g@v2', which can be satisfied by the executable.
  18 ## We will thus export the symbols.
  19 # RUN: ld.lld -pie %t.o %t1.so -o %t
  20 # RUN: llvm-nm -D %t | FileCheck --check-prefix=NM %s
  21
  22 # NM: T f
  23 # NM: T g
  24
  25 ## The default is --no-allow-shlib-undefined.
  26 ## Don't error because undefined symbols in %t1.so are satisfied by %t.so
  27 # RUN: llvm-mc -filetype=obj -triple=x86_64 /dev/null -o %t2.o
  28 # RUN: ld.lld %t2.o %t1.so %t.so -y f@v1 -o /dev/null | FileCheck %s
  29
  30 # CHECK:      {{.*}}1.so: reference to f@v1
  31 # CHECK-NEXT: {{.*}}.so: shared definition of f@v1
  32
  33 .globl f_v1, g_v2
  34 .symver f_v1,f@v1
  35 .symver g_v2,g@v2
  36 f_v1:
  37 g_v2: