lld/test/ELF/linkerscript/common.s

   1 # REQUIRES: x86
   2 ## Test that COMMON matches common symbols.
   3
   4 # RUN: rm -rf %t && split-file %s %t
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %t/a.s -o %t/a.o
   6 # RUN: ld.lld -T %t/1.t %t/a.o -o %t/a1
   7 # RUN: llvm-readelf -S -s %t/a1 | FileCheck %s --check-prefix=CHECK1
   8 # RUN: ld.lld -T %t/2.t %t/a.o -o %t/a2
   9 # RUN: llvm-readelf -S -s %t/a2 | FileCheck %s --check-prefix=CHECK2
  10
  11 # CHECK1:      [Nr] Name    Type     Address  Off      Size   ES Flg Lk Inf Al
  12 # CHECK1-NEXT: [ 0]         NULL     [[#%x,]] [[#%x,]] 000000 00      0   0  0
  13 # CHECK1-NEXT: [ 1] .text   PROGBITS [[#%x,]] [[#%x,]] 000005 00  AX  0   0  4
  14 # CHECK1-NEXT: [ 2] .data   PROGBITS [[#%x,]] [[#%x,]] 000001 00  WA  0   0  1
  15 # CHECK1-NEXT: [ 3] .common NOBITS   [[#%x,]] [[#%x,]] 000180 00  WA  0   0 256
  16 # CHECK1:         Value          Size Type    Bind   Vis     Ndx   Name
  17 # CHECK1-DAG:  [[#%x,]]           128 OBJECT  GLOBAL DEFAULT [[#]] q1
  18 # CHECK1-DAG:  [[#%x,]]           128 OBJECT  GLOBAL DEFAULT [[#]] q2
  19
  20 # CHECK2:      [Nr] Name    Type     Address  Off      Size   ES Flg Lk Inf Al
  21 # CHECK2-NEXT: [ 0]         NULL     [[#%x,]] [[#%x,]] 000000 00      0   0  0
  22 # CHECK2-NEXT: [ 1] .text   PROGBITS [[#%x,]] [[#%x,]] 000005 00  AX  0   0  4
  23 # CHECK2-NEXT: [ 2] .data   PROGBITS [[#%x,]] [[#%x,]] 000180 00  WA  0   0 256
  24 # CHECK2:         Value          Size Type    Bind   Vis     Ndx   Name
  25 # CHECK2-DAG:  [[#%x,]]           128 OBJECT  GLOBAL DEFAULT [[#]] q1
  26 # CHECK2-DAG:  [[#%x,]]           128 OBJECT  GLOBAL DEFAULT [[#]] q2
  27
  28 #--- a.s
  29 .globl _start
  30 _start:
  31   jmp _start
  32
  33 .section .data,"aw",@progbits
  34 .byte 0
  35
  36 .comm q1,128,8
  37 .comm q2,128,256
  38
  39 #--- 1.t
  40 SECTIONS { . = SIZEOF_HEADERS; .common : { *(COMMON) } }
  41
  42 #--- 2.t
  43 ## COMMON can be placed in a SHT_PROGBITS section.
  44 SECTIONS { . = SIZEOF_HEADERS; .data : { *(.data) *(COMMON) } }