lld/test/ELF/wrap-extract-real.s

   1 # REQUIRES: x86
   2 ## --wrap=xxx should trigger archive extraction for symbol xxx for references to __real_xxx.
   3
   4 # RUN: rm -rf %t && split-file %s %t && cd %t
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64 _start.s -o _start.o
   6 # RUN: llvm-mc -filetype=obj -triple=x86_64 ref__real_foo.s -o ref__real_foo.o
   7 # RUN: llvm-mc -filetype=obj -triple=x86_64 wrap.s -o wrap.o
   8 # RUN: llvm-mc -filetype=obj -triple=x86_64 foo.s -o foo.o
   9
  10 ## Test when the reference to __real_foo is not in __wrap_foo.
  11 # RUN: ld.lld _start.o ref__real_foo.o --start-lib foo.o --end-lib --wrap foo -o %t_real.elf
  12 # RUN: llvm-readelf --symbols %t_real.elf | FileCheck %s --check-prefix=REAL
  13
  14 # REAL:      Symbol table '.symtab' contains 4 entries:
  15 # REAL-NEXT:        Value             Size Type    Bind   Vis       Ndx Name
  16 # REAL-NEXT:        {{.*}}               0 NOTYPE  LOCAL  DEFAULT   UND
  17 # REAL-NEXT:        {{.*}}               0 NOTYPE  GLOBAL DEFAULT [[#]] _start
  18 # REAL-NEXT:        {{.*}}               0 NOTYPE  GLOBAL DEFAULT [[#]] foo
  19 # REAL-NEXT:        {{.*}}               0 NOTYPE  GLOBAL DEFAULT   UND __wrap_foo
  20
  21 ## Test when the reference to __real_foo is in __wrap_foo.
  22 # RUN: ld.lld _start.o --start-lib wrap.o --end-lib --start-lib foo.o --end-lib --wrap foo -o %t_wrap_real.elf
  23 # RUN: llvm-readelf --symbols %t_wrap_real.elf | FileCheck %s --check-prefix=WRAP_REAL
  24
  25 # WRAP_REAL:      Symbol table '.symtab' contains 4 entries:
  26 # WRAP_REAL-NEXT:        Value             Size Type    Bind   Vis       Ndx Name
  27 # WRAP_REAL-NEXT:        {{.*}}               0 NOTYPE  LOCAL  DEFAULT   UND
  28 # WRAP_REAL-NEXT:        {{.*}}               0 NOTYPE  GLOBAL DEFAULT [[#]] _start
  29 # WRAP_REAL-NEXT:        {{.*}}               0 NOTYPE  GLOBAL DEFAULT [[#]] __wrap_foo
  30 # WRAP_REAL-NEXT:        {{.*}}               0 NOTYPE  GLOBAL DEFAULT [[#]] foo
  31
  32 #--- _start.s
  33 .global _start; _start:; ret
  34
  35 #--- ref__real_foo.s
  36 call __real_foo
  37
  38 #--- wrap.s
  39 .global __wrap_foo; __wrap_foo:; call __real_foo
  40
  41 #--- foo.s
  42 .global foo; foo:; ret