lld/test/ELF/ppc32-tls-gd.s

   1 # REQUIRES: ppc
   2 # RUN: llvm-mc -filetype=obj -triple=powerpc %s -o %t.o
   3 # RUN: echo '.tbss; .globl b, c; b: .zero 4; c:' | llvm-mc -filetype=obj -triple=powerpc - -o %t1.o
   4 # RUN: ld.lld -shared -soname=t1.so %t1.o -o %t1.so
   5 # RUN: echo '.globl __tls_get_addr; __tls_get_addr:' | llvm-mc -filetype=obj -triple=powerpc - -o %tga.o
   6
   7 # RUN: ld.lld -shared %t.o %t1.o -o %t.so
   8 # RUN: llvm-readobj -d %t.so | FileCheck --check-prefix=GD-DYN %s
   9 # RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=GD-REL %s
  10 # RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck --check-prefix=GD %s
  11
  12 # RUN: ld.lld %t.o %t1.o %tga.o -o %t
  13 # RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s
  14 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s
  15
  16 # RUN: ld.lld %t.o %t1.so -o %t
  17 # RUN: llvm-readobj -r %t | FileCheck --check-prefix=IE-REL %s
  18 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=IE %s
  19
  20 ## DT_PPC_GOT represents the address of _GLOBAL_OFFSET_TABLE_.
  21 # GD-DYN: PPC_GOT 0x20358
  22
  23 # GD-REL:      .rela.dyn {
  24 # GD-REL-NEXT:   0x20364 R_PPC_DTPMOD32 a 0x0
  25 # GD-REL-NEXT:   0x20368 R_PPC_DTPREL32 a 0x0
  26 # GD-REL-NEXT:   0x2036C R_PPC_DTPMOD32 b 0x0
  27 # GD-REL-NEXT:   0x20370 R_PPC_DTPREL32 b 0x0
  28 # GD-REL-NEXT:   0x20374 R_PPC_DTPMOD32 c 0x0
  29 # GD-REL-NEXT:   0x20378 R_PPC_DTPREL32 c 0x0
  30 # GD-REL-NEXT: }
  31
  32 ## &DTPMOD(a) - _GLOBAL_OFFSET_TABLE_ = 12
  33 # GD:      addi 3, 31, 12
  34 # GD-NEXT: bl 0x1028c
  35 # GD-NEXT: lwz 3, 0(3)
  36
  37 ## &DTPMOD(b) - _GLOBAL_OFFSET_TABLE_ = 20
  38 # GD-NEXT: addi 3, 31, 20
  39 # GD-NEXT: bl 0x1028c
  40 # GD-NEXT: lwz 3, 0(3)
  41
  42 ## &DTPMOD(c) - _GLOBAL_OFFSET_TABLE_ = 28
  43 # GD-NEXT: addi 3, 9, 28
  44 # GD-NEXT: bl 0x1028c
  45 # GD-NEXT: lwz 3, 0(3)
  46
  47 # NOREL: no relocations
  48
  49 ## a@tprel = 8-0x7000 = -28664
  50 # LE:      addis 3, 2, 0
  51 # LE-NEXT: addi 3, 3, -28664
  52 # LE-NEXT: lwz 3, 0(3)
  53 ## b@tprel = 12-0x7000 = -28660
  54 # LE-NEXT: addis 3, 2, 0
  55 # LE-NEXT: addi 3, 3, -28660
  56 # LE-NEXT: lwz 3, 0(3)
  57 ## c@tprel = 16-0x7000 = -28656
  58 # LE-NEXT: addis 3, 2, 0
  59 # LE-NEXT: addi 3, 3, -28656
  60 # LE-NEXT: lwz 3, 0(3)
  61
  62 # IE-REL:      .rela.dyn {
  63 # IE-REL-NEXT:   0x10020280 R_PPC_TPREL32 b 0x0
  64 # IE-REL-NEXT:   0x10020284 R_PPC_TPREL32 c 0x0
  65 # IE-REL-NEXT: }
  66
  67 ## a is relaxed to use LE.
  68 ## a@tprel = st_value(a)-0x8000 = -28664
  69 # IE:      addis 3, 2, 0
  70 # IE-NEXT: addi 3, 3, -28664
  71 # IE-NEXT: lwz 3, 0(3)
  72 ## &.got[3] - _GLOBAL_OFFSET_TABLE_ = 12
  73 # IE-NEXT: lwz 3, 12(31)
  74 # IE-NEXT: add 3, 3, 2
  75 # IE-NEXT: lwz 3, 0(3)
  76 ## &.got[4] - _GLOBAL_OFFSET_TABLE_ = 16
  77 # IE-NEXT: lwz 3, 16(9)
  78 # IE-NEXT: add 3, 3, 2
  79 # IE-NEXT: lwz 3, 0(3)
  80
  81 addi 3, 31, a@got@tlsgd
  82 bl __tls_get_addr(a@tlsgd)
  83 lwz 3, 0(3)
  84
  85 addi 3, 31, b@got@tlsgd
  86 bl __tls_get_addr(b@tlsgd)
  87 lwz 3, 0(3)
  88
  89 ## -fpic may use a different register (e.g. r9).
  90 addi 3, 9, c@got@tlsgd
  91 bl __tls_get_addr(c@tlsgd)
  92 lwz 3, 0(3)
  93
  94 .section .tbss
  95 .globl a
  96 .zero 8
  97 a:
  98 .zero 4