lld/test/ELF/copy-relocation-zero-addr.s

   1 # REQUIRES: x86
   2 # RUN: split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/b.s -o %t/b.o
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/c.s -o %t/c.o
   6 # RUN: ld.lld -shared -soname=b -Ttext=0 %t/b.o -o %t/b.so
   7
   8 # RUN: ld.lld %t/a.o %t/b.so -o %t1
   9 # RUN: llvm-readelf -r -s %t1 | FileCheck %s
  10
  11 ## In %t/b.so, foo has st_value==0 and its section alignment is 0x400. The
  12 ## alignment of the copy relocated foo is thus 0x400.
  13 # CHECK: R_X86_64_COPY {{.*}} foo + 0
  14 # CHECK: 0000000000203400  4 OBJECT GLOBAL DEFAULT [[#]] foo
  15
  16 ## Error if attempting to copy relocate a SHN_ABS symbol (even if st_size is non-zero).
  17 # RUN: ld.lld -shared -soname=c %t/c.o -o %t/c.so
  18 # RUN: llvm-readelf -s %t/c.so | FileCheck %s --check-prefix=ABSADDR
  19 # RUN: not ld.lld %t/a.o %t/c.so -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR
  20
  21 # ABSADDR: 0000000000000000  4 OBJECT GLOBAL DEFAULT ABS foo
  22 # ERR: error: cannot create a copy relocation for symbol foo
  23
  24 #--- a.s
  25 .text
  26 .globl _start
  27 _start:
  28   movl $5, foo
  29
  30 #--- b.s
  31 .data
  32 .balign 0x400
  33 .type foo,@object
  34 .globl foo
  35 foo:
  36   .long 0
  37   .size foo, 4
  38
  39 #--- c.s
  40 .data
  41 .globl foo
  42 .type foo,@object
  43 foo = 0x0
  44 .size foo, 4