lld/test/ELF/eh-frame-merge.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   3 # RUN: ld.lld %t.o %t.o -shared --emit-relocs -o %t.so
   4 # RUN: llvm-readelf -S -r %t.so | FileCheck %s --check-prefixes=CHECK,RELOC
   5 # RUN: llvm-dwarfdump --eh-frame %t.so | FileCheck %s --check-prefix=EH
   6
   7 ## Also show that the merging happens when going via a -r link.
   8 # RUN: ld.lld -r %t.o %t.o -o %t.ro
   9 # RUN: ld.lld %t.ro -o %t2.so -shared
  10 # RUN: llvm-readelf -S -r %t2.so | FileCheck %s
  11
  12 # CHECK:       Name      Type     Address              Off      Size   ES Flg Lk Inf Al
  13 # CHECK:      .eh_frame  PROGBITS [[#%x,]]             [[#%x,]] 000058 00   A  0   0  8
  14 # CHECK:      foo        PROGBITS {{0*}}[[#%x,FOO:]]   [[#%x,]] 000002 00  AX  0   0  1
  15 # CHECK-NEXT: bar        PROGBITS {{0*}}[[#%x,FOO+2]]  [[#%x,]] 000002 00  AX  0   0  1
  16
  17 # RELOC:        Offset             Info     Type          Symbol's Value  Symbol's Name + Addend
  18 # RELOC-NEXT: {{0*}}[[#%x,OFF:]]   [[#%x,]] R_X86_64_PC32 [[#%x,]]        foo + 0
  19 # RELOC-NEXT: {{0*}}[[#%x,OFF+20]] [[#%x,]] R_X86_64_PC32 [[#%x,]]        bar + 0
  20 # RELOC-NEXT: {{0*}}[[#OFF+40]]    [[#%x,]] R_X86_64_PC32 [[#%x,]]        foo + 1
  21 # RELOC-NEXT: {{0*}}[[#%x,OFF-24]] [[#%x,]] R_X86_64_NONE 0{{$}}
  22
  23 # EH:          Format:                DWARF32
  24 # EH:        00000018 00000010 0000001c FDE cie=00000000 pc={{0*}}[[#%x,FOO:]]...
  25 # EH-SAME:   {{0*}}[[#%x,FOO+1]]
  26 # EH-COUNT-3:  DW_CFA_nop:
  27 # EH-EMPTY:
  28 # EH:        0000002c 00000010 00000030 FDE cie=00000000 pc={{0*}}[[#%x,FOO+2]]...{{0*}}[[#%x,FOO+4]]
  29 # EH-COUNT-3:  DW_CFA_nop:
  30 # EH-EMPTY:
  31 # EH:        00000040 00000010 00000044 FDE cie=00000000 pc={{0*}}[[#%x,FOO+1]]...{{0*}}[[#%x,FOO+2]]
  32 # EH-COUNT-3:  DW_CFA_nop:
  33 # EH-EMPTY:
  34 # EH-NEXT:     0x[[#%x,]]: CFA=RSP+8: RIP=[CFA-8]
  35 # EH-EMPTY:
  36 # EH-NEXT:   00000054 ZERO terminator
  37
  38         .section        foo,"ax",@progbits
  39         .cfi_startproc
  40         nop
  41         .cfi_endproc
  42
  43         .section        bar,"axG",@progbits,foo,comdat
  44         .cfi_startproc
  45         nop
  46         nop
  47         .cfi_endproc