lld/test/ELF/i386-tlsdesc-gd.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=i386 %s -o %t.o
   3 # RUN: echo '.tbss; .globl c; c: .zero 4' | llvm-mc -filetype=obj -triple=i386 - -o %t1.o
   4 # RUN: ld.lld -shared -soname=t1.so %t1.o -o %t1.so
   5
   6 # RUN: ld.lld -shared -z now %t.o %t1.o -o %t.so
   7 # RUN: llvm-readobj -r -x .got %t.so | FileCheck --check-prefix=GD-REL %s
   8 # RUN: llvm-objdump -h -d --no-show-raw-insn %t.so | FileCheck --check-prefix=GD %s
   9
  10 # RUN: ld.lld -shared -z now %t.o %t1.o -o %t-rela.so -z rela
  11 # RUN: llvm-readobj -r -x .got %t-rela.so | FileCheck --check-prefix=GD-RELA %s
  12
  13 # RUN: ld.lld -z now %t.o %t1.o -o %t
  14 # RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s
  15 # RUN: llvm-objdump -h -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s
  16
  17 # RUN: ld.lld -z now %t.o %t1.so -o %t
  18 # RUN: llvm-readobj -r %t | FileCheck --check-prefix=IE-REL %s
  19 # RUN: llvm-objdump -h -d --no-show-raw-insn %t | FileCheck --check-prefix=IE %s
  20
  21 # GD-REL:      .rel.dyn {
  22 # GD-REL-NEXT:   0x2258 R_386_TLS_DESC -
  23 # GD-REL-NEXT:   0x2248 R_386_TLS_DESC a
  24 # GD-REL-NEXT:   0x2250 R_386_TLS_DESC c
  25 # GD-REL-NEXT: }
  26 # GD-REL:      Hex dump of section '.got':
  27 # GD-REL-NEXT: 0x00002248 00000000 00000000 00000000 00000000
  28 # GD-REL-NEXT: 0x00002258 00000000 0b000000
  29
  30 # GD-RELA:      .rela.dyn {
  31 # GD-RELA-NEXT:   0x2264 R_386_TLS_DESC - 0xB
  32 # GD-RELA-NEXT:   0x2254 R_386_TLS_DESC a 0x0
  33 # GD-RELA-NEXT:   0x225C R_386_TLS_DESC c 0x0
  34 # GD-RELA-NEXT: }
  35 # GD-RELA:      Hex dump of section '.got':
  36 # GD-RELA-NEXT: 0x00002254 00000000 00000000 00000000 00000000
  37 # GD-RELA-NEXT: 0x00002264 00000000 00000000
  38
  39 # GD:      .got     00000018 00002248
  40 # GD:      .got.plt 0000000c 00002260
  41
  42 # &.rel.dyn[a]-.got.plt = 0x2248-0x2260 = -24
  43 # GD:      leal -24(%ebx), %eax
  44 # GD-NEXT: calll *(%eax)
  45 # GD-NEXT: movl %gs:(%eax), %eax
  46
  47 # &.rel.dyn[b]-.got.plt = 0x2258-0x2260 = -8
  48 # GD-NEXT: leal -8(%ebx), %eax
  49 # GD-NEXT: movl %edx, %ebx
  50 # GD-NEXT: calll *(%eax)
  51 # GD-NEXT: movl %gs:(%eax), %eax
  52
  53 # &.rel.dyn[c]-.got.plt = 0x2250-0x2260 = -16
  54 # GD-NEXT: leal -16(%ebx), %eax
  55 # GD-NEXT: calll *(%eax)
  56 # GD-NEXT: movl %gs:(%eax), %eax
  57
  58 # NOREL: no relocations
  59
  60 ## st_value(a) - tls_size = -8
  61 # LE:      leal -8, %eax
  62 # LE-NEXT: nop
  63 # LE-NEXT: movl %gs:(%eax), %eax
  64 ## st_value(b) - tls_size = -5
  65 # LE:      leal -5, %eax
  66 # LE-NEXT: movl %edx, %ebx
  67 # LE-NEXT: nop
  68 # LE-NEXT: movl %gs:(%eax), %eax
  69 ## st_value(c) - tls_size = -4
  70 # LE:      leal -4, %eax
  71 # LE-NEXT: nop
  72 # LE-NEXT: movl %gs:(%eax), %eax
  73
  74 # IE-REL:      .rel.dyn {
  75 # IE-REL-NEXT:   0x40222C R_386_TLS_TPOFF c
  76 # IE-REL-NEXT: }
  77
  78 # IE:      .got     00000004 0040222c
  79 # IE:      .got.plt 0000000c 00402230
  80
  81 ## a and b are relaxed to use LE.
  82 # IE:      leal -4, %eax
  83 # IE-NEXT: nop
  84 # IE-NEXT: movl %gs:(%eax), %eax
  85 # IE-NEXT: leal -1, %eax
  86 # IE-NEXT: movl %edx, %ebx
  87 # IE-NEXT: nop
  88 # IE-NEXT: movl %gs:(%eax), %eax
  89 ## &.got[a]-.got.plt = 0x2220 - 0x2224 = -4
  90 # IE-NEXT: movl -4(%ebx), %eax
  91 # IE-NEXT: nop
  92 # IE-NEXT: movl %gs:(%eax), %eax
  93
  94 leal a@tlsdesc(%ebx), %eax
  95 call *a@tlscall(%eax)
  96 movl %gs:(%eax), %eax
  97
  98 leal b@tlsdesc(%ebx), %eax
  99 movl %edx, %ebx  # GCC -O0 may add an extra insn in between.
 100 call *b@tlscall(%eax)
 101 movl %gs:(%eax), %eax
 102
 103 leal c@tlsdesc(%ebx), %eax
 104 call *c@tlscall(%eax)
 105 movl %gs:(%eax), %eax
 106
 107 .section .tbss
 108 .globl a
 109 .zero 8
 110 a:
 111 .zero 3
 112 b:
 113 .zero 1