lld/test/ELF/ppc64-tls-gd.s

   1 # REQUIRES: ppc
   2 # RUN: llvm-mc -filetype=obj -triple=powerpc64le %s -o %t.o
   3 # RUN: echo '.tbss; .globl b, c; b: .zero 4; c:' | llvm-mc -filetype=obj -triple=powerpc64le - -o %t1.o
   4 # RUN: ld.lld -shared -soname=t1.so %t1.o -o %t1.so
   5
   6 # RUN: ld.lld -shared %t.o %t1.o -o %t.so
   7 # RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=GD-REL %s
   8 # RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck --check-prefix=GD %s
   9
  10 # RUN: ld.lld %t.o %t1.o -o %t
  11 # RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s
  12 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s
  13
  14 # RUN: ld.lld %t.o %t1.so -o %t
  15 # RUN: llvm-readobj -r %t | FileCheck --check-prefix=IE-REL %s
  16 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=IE %s
  17
  18 # GD-REL:      .rela.dyn {
  19 # GD-REL-NEXT:   0x20550 R_PPC64_DTPMOD64 a 0x0
  20 # GD-REL-NEXT:   0x20558 R_PPC64_DTPREL64 a 0x0
  21 # GD-REL-NEXT:   0x20560 R_PPC64_DTPMOD64 b 0x0
  22 # GD-REL-NEXT:   0x20568 R_PPC64_DTPREL64 b 0x0
  23 # GD-REL-NEXT:   0x20570 R_PPC64_DTPMOD64 c 0x0
  24 # GD-REL-NEXT:   0x20578 R_PPC64_DTPREL64 c 0x0
  25 # GD-REL-NEXT: }
  26
  27 ## Start with .got[1] as .got[0] is the .TOC.
  28 ## &DTPMOD(a) - .TOC. = &.got[1] - (.got+0x8000) = -32760
  29 # GD:      addis 3, 2, 0
  30 # GD-NEXT: addi 3, 3, -32760
  31 # GD-NEXT: bl 0x10400
  32 # GD-NEXT: ld 2, 24(1)
  33
  34 ## &DTPMOD(b) - .TOC. = &.got[3] - (.got+0x8000) = -32744
  35 # GD-NEXT: addis 3, 2, 0
  36 # GD-NEXT: addi 3, 3, -32744
  37 # GD-NEXT: bl 0x10400
  38 # GD-NEXT: ld 2, 24(1)
  39
  40 ## &DTPMOD(b) - .TOC. = &.got[5] - (.got+0x8000) = -32728
  41 # GD-NEXT: li 3, -32728
  42 # GD-NEXT: bl 0x10400
  43 # GD-NEXT: ld 2, 24(1)
  44
  45 # NOREL: no relocations
  46
  47 ## a@tprel = st_value(a)-0x7000 = -28664
  48 # LE:      nop
  49 # LE-NEXT: addis 3, 13, 0
  50 # LE-NEXT: nop
  51 # LE-NEXT: addi 3, 3, -28664
  52 ## b@tprel = st_value(b)-0x7000 = -28660
  53 # LE:      nop
  54 # LE-NEXT: addis 3, 13, 0
  55 # LE-NEXT: nop
  56 # LE-NEXT: addi 3, 3, -28660
  57 ## c@tprel = st_value(c)-0x7000 = -28656
  58 # LE-NEXT: addis 3, 13, 0
  59 # LE-NEXT: nop
  60 # LE-NEXT: addi 3, 3, -28656
  61
  62 # IE-REL:      .rela.dyn {
  63 # IE-REL-NEXT:   0x10020420 R_PPC64_TPREL64 b 0x0
  64 # IE-REL-NEXT:   0x10020428 R_PPC64_TPREL64 c 0x0
  65 # IE-REL-NEXT: }
  66
  67 ## a is relaxed to use LE.
  68 ## a@tprel = st_value(a)-0x7000 = -28664
  69 # IE:      nop
  70 # IE-NEXT: addis 3, 13, 0
  71 # IE-NEXT: nop
  72 # IE-NEXT: addi 3, 3, -28664
  73 ## &DTPMOD(b) - .TOC. = &.got[1] - (.got+0x8000) = -32760
  74 # IE-NEXT: addis 3, 2, 0
  75 # IE-NEXT: ld 3, -32760(3)
  76 # IE-NEXT: nop
  77 # IE-NEXT: add 3, 3, 13
  78 ## &DTPMOD(c) - .TOC. = &.got[2] - (.got+0x8000) = -32752
  79 ## r0 is wrong. R_PPC64_GOT_TLS16 cannot be relaxed to IE but the behavior is
  80 ## consistent with ld.bfd
  81 # IE-NEXT: ld 3, -32752(0)
  82 # IE-NEXT: nop
  83 # IE-NEXT: add 3, 3, 13
  84
  85 addis 3, 2, a@got@tlsgd@ha
  86 addi 3, 3, a@got@tlsgd@l
  87 bl __tls_get_addr(a@tlsgd)
  88 nop
  89
  90 addis 3, 2, b@got@tlsgd@ha
  91 addi 3, 3, b@got@tlsgd@l
  92 bl __tls_get_addr(b@tlsgd)
  93 nop
  94
  95 addi 3, 0, c@got@tlsgd
  96 bl __tls_get_addr(c@tlsgd)
  97 nop
  98
  99 .section .tbss
 100 .globl a
 101 .zero 8
 102 a:
 103 .zero 4