lld/test/ELF/ppc64-plt-stub.s

   1 # REQUIRES: ppc
   2
   3 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
   4 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/shared-ppc64.s -o %t2.o
   5 # RUN: ld.lld -shared %t2.o -soname=t2.so -o %t2.so
   6 # RUN: ld.lld %t.o %t2.so -o %t
   7 # RUN: llvm-readelf -S -d %t | FileCheck --check-prefix=SEC %s
   8 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
   9
  10 # RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
  11 # RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/shared-ppc64.s -o %t2.o
  12 # RUN: ld.lld -shared %t2.o -soname=t2.so -o %t2.so
  13 # RUN: ld.lld %t.o %t2.so -o %t
  14 # RUN: llvm-readelf -S -d %t | FileCheck --check-prefix=SEC %s
  15 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
  16
  17 ## DT_PLTGOT points to .plt
  18 # SEC: .plt NOBITS 0000000010030400 000400 000018
  19 # SEC: 0x0000000000000003 (PLTGOT) 0x10030400
  20 # SEC: 0x0000000070000000 (PPC64_GLINK) 0x100102e0
  21 # SEC: 0x0000000070000003 (PPC64_OPT) 0x0
  22
  23 ## .plt[0] holds the address of _dl_runtime_resolve.
  24 ## .plt[1] holds the link map.
  25 ## The JMP_SLOT relocation is stored at .plt[2]
  26 # RELOC: 0x10030010 R_PPC64_JMP_SLOT foo 0x0
  27
  28 # CHECK:      <_start>:
  29 # CHECK:      10010298: bl 0x100102b0
  30
  31 # CHECK-LABEL: 00000000100102b0 <__plt_foo>:
  32 # CHECK-NEXT:      std 2, 24(1)
  33 # CHECK-NEXT:      addis 12, 2, 1
  34 # CHECK-NEXT:      ld 12, -32744(12)
  35 # CHECK-NEXT:      mtctr 12
  36 # CHECK-NEXT:      bctr
  37
  38 # CHECK-LABEL: <.glink>:
  39 # CHECK-NEXT:  100102c4: mflr 0
  40 # CHECK-NEXT:            bcl 20, 31, 0x100102cc <.glink+0x8>
  41 # CHECK-NEXT:            mflr 11
  42 # CHECK-NEXT:            mtlr 0
  43 # CHECK-NEXT:            sub     12, 12, 11
  44 # CHECK-NEXT:            addi 0, 12, -52
  45 # CHECK-NEXT:            rldicl 0, 0, 62, 2
  46 # CHECK-NEXT:            ld 12, 44(11)
  47 # CHECK-NEXT:            add 11, 12, 11
  48 # CHECK-NEXT:            ld 12, 0(11)
  49 # CHECK-NEXT:            ld 11, 8(11)
  50 # CHECK-NEXT:            mtctr 12
  51 # CHECK-NEXT:            bctr
  52 # CHECK-NEXT:            <unknown>
  53 # CHECK-NEXT:            <unknown>
  54 ## DT_PPC64_GLINK+0x20 = 0x10010300
  55 # CHECK-NEXT:  10010300: b 0x100102c4 <.glink>
  56 # CHECK-NOT:   {{.}}
  57
  58         .text
  59         .abiversion 2
  60         .globl  _start
  61         .p2align        4
  62         .type   _start,@function
  63 _start:
  64 .Lfunc_begin0:
  65 .Lfunc_gep0:
  66   addis 2, 12, .TOC.-.Lfunc_gep0@ha
  67   addi 2, 2, .TOC.-.Lfunc_gep0@l
  68 .Lfunc_lep0:
  69   .localentry     _start, .Lfunc_lep0-.Lfunc_gep0
  70   bl foo
  71   nop
  72   li 0, 1
  73   sc
  74   .size _start, .-.Lfunc_begin0