lld/test/ELF/amdgpu-relocs.s

   1 # REQUIRES: amdgpu
   2 # RUN: llvm-mc -filetype=obj -triple=amdgcn--amdhsa -mcpu=fiji %s -o %t.o
   3 # RUN: ld.lld --hash-style=sysv -shared %t.o -o %t.so
   4 # RUN: llvm-readobj -r %t.so | FileCheck %s
   5 # RUN: llvm-nm %t.so | FileCheck %s --check-prefix=NM
   6 # RUN: llvm-readelf -x .rodata -x nonalloc %t.so | FileCheck %s --check-prefix=HEX
   7
   8 ## ABS64 and RELATIVE64 relocs do not cause --check-dynamic-relocations errors.
   9 # RUN: ld.lld --hash-style=sysv -shared %t.o -o /dev/null --apply-dynamic-relocs
  10
  11 .text
  12
  13 kernel0:
  14   s_mov_b32 s0, common_var0@GOTPCREL+4
  15   s_mov_b32 s0, common_var1@gotpcrel32@lo+4
  16   s_mov_b32 s0, common_var2@gotpcrel32@hi+4
  17
  18   s_mov_b32 s0, global_var0@GOTPCREL+4
  19   s_mov_b32 s0, global_var1@gotpcrel32@lo+4
  20   s_mov_b32 s0, global_var2@gotpcrel32@hi+4
  21
  22   s_mov_b32 s0, extern_var0@GOTPCREL+4
  23   s_mov_b32 s0, extern_var1@gotpcrel32@lo+4
  24   s_mov_b32 s0, extern_var2@gotpcrel32@hi+4
  25
  26   s_mov_b32 s0, weak_var0@GOTPCREL+4
  27   s_mov_b32 s0, weak_var1@gotpcrel32@lo+4
  28   s_mov_b32 s0, weak_var2@gotpcrel32@hi+4
  29
  30   s_mov_b32 s0, weakref_var0@GOTPCREL+4
  31   s_mov_b32 s0, weakref_var1@gotpcrel32@lo+4
  32   s_mov_b32 s0, weakref_var2@gotpcrel32@hi+4
  33
  34   s_mov_b32 s0, local_var0+4
  35   s_mov_b32 s0, local_var1@rel32@lo+4
  36   s_mov_b32 s0, local_var2@rel32@hi+4
  37
  38   s_endpgm
  39
  40   .comm    common_var0,1024,4
  41   .comm    common_var1,1024,4
  42   .comm    common_var2,1024,4
  43   .globl   global_var0
  44   .globl   global_var1
  45   .globl   global_var1
  46   .weak    weak_var0
  47   .weak    weak_var1
  48   .weak    weak_var2
  49   .weakref weakref_var0, weakref_alias_var0
  50   .weakref weakref_var1, weakref_alias_var1
  51   .weakref weakref_var2, weakref_alias_var2
  52   .local   local_var0
  53   .local   local_var1
  54   .local   local_var2
  55   local_var0:
  56   local_var1:
  57   local_var2:
  58
  59 # R_AMDGPU_ABS32:
  60 .section nonalloc, "w", @progbits
  61   .long var0, common_var2+4
  62   .long var1, common_var1+8
  63   .long var2, common_var0+12
  64
  65 # R_AMDGPU_ABS64:
  66 .type ptr, @object
  67 .data
  68   .globl ptr
  69   .p2align 3
  70 ptr:
  71   .quad temp
  72   .size ptr, 8
  73
  74 # R_AMDGPU_RELATIVE64:
  75   .type temp2, @object
  76   .local temp2
  77   .size temp2, 4
  78   temp2:
  79
  80   .type ptr2, @object
  81   .globl ptr2
  82   .size ptr2, 8
  83   .p2align 3
  84 ptr2:
  85   .quad temp2
  86
  87 # R_AMDGPU_REL64:
  88 .type foo, @object
  89 .rodata
  90   .globl foo
  91   .p2align 3
  92 foo:
  93   .quad temp2@rel64
  94   .size foo, 8
  95
  96 # The relocation for local_var{0, 1, 2} and var should be resolved by the
  97 # linker.
  98 # CHECK: Relocations [
  99 # CHECK: .rela.dyn {
 100 # CHECK-NEXT: R_AMDGPU_RELATIVE64 - 0x3928
 101 # CHECK-NEXT: R_AMDGPU_ABS64 common_var0 0x0
 102 # CHECK-NEXT: R_AMDGPU_ABS64 common_var1 0x0
 103 # CHECK-NEXT: R_AMDGPU_ABS64 common_var2 0x0
 104 # CHECK-NEXT: R_AMDGPU_ABS64 global_var0 0x0
 105 # CHECK-NEXT: R_AMDGPU_ABS64 global_var1 0x0
 106 # CHECK-NEXT: R_AMDGPU_ABS64 global_var2 0x0
 107 # CHECK-NEXT: R_AMDGPU_ABS64 extern_var0 0x0
 108 # CHECK-NEXT: R_AMDGPU_ABS64 extern_var1 0x0
 109 # CHECK-NEXT: R_AMDGPU_ABS64 extern_var2 0x0
 110 # CHECK-NEXT: R_AMDGPU_ABS64 weak_var0 0x0
 111 # CHECK-NEXT: R_AMDGPU_ABS64 weak_var1 0x0
 112 # CHECK-NEXT: R_AMDGPU_ABS64 weak_var2 0x0
 113 # CHECK-NEXT: R_AMDGPU_ABS64 weakref_alias_var0 0x0
 114 # CHECK-NEXT: R_AMDGPU_ABS64 weakref_alias_var1 0x0
 115 # CHECK-NEXT: R_AMDGPU_ABS64 weakref_alias_var2 0x0
 116 # CHECK-NEXT: R_AMDGPU_ABS64 temp 0x0
 117 # CHECK-NEXT: }
 118 # CHECK-NEXT: ]
 119
 120 # NM: 0000000000003930 B common_var0
 121 # NM: 0000000000003d30 B common_var1
 122 # NM: 0000000000004130 B common_var2
 123 # NM: 0000000000003928 d temp2
 124
 125 # temp2 - foo = 0x3928-0x768 = 0x31c0
 126 # HEX:      section '.rodata':
 127 # HEX-NEXT: 0x00000768 c0310000 00000000
 128
 129 # common_var2+4, common_var1+8, and common_var0+12.
 130 # HEX:      section 'nonalloc':
 131 # HEX-NEXT: 0x00000000 00000000 34410000 00000000 383d0000
 132 # HEX-NEXT: 0x00000010 00000000 3c390000