lld/test/ELF/ppc64-tls-missing-gdld.s

   1 # REQUIRES: ppc
   2 # RUN: split-file %s %t
   3 # RUN: llvm-mc --triple=ppc64le %t/a.s --filetype=obj -o %t/a.o
   4 # RUN: llvm-mc --triple=ppc64le %t/b.s --filetype=obj -o %t/b.o
   5 # RUN: llvm-mc --triple=ppc64le %t/tga.s --filetype=obj -o %t/tga.o
   6
   7 ## User code can call __tls_get_addr by specifying the tls_index parameter.
   8 ## We need to allow R_PPC64_REL24/R_PPC64_REL24_NOTOC referencing __tls_get_addr
   9 ## without a pairing R_PPC64_TLSGD/R_PPC64_TLSLD.
  10 # RUN: ld.lld --shared --fatal-warnings %t/b.o -o /dev/null
  11
  12 ## Warn missing R_PPC64_TLSGD/R_PPC64_TLSLD.
  13 # RUN: ld.lld --shared %t/a.o -o %t.so 2>&1 | FileCheck %s --check-prefix=WARN
  14 # RUN: llvm-objdump -d --no-leading-addr %t.so | FileCheck %s --check-prefix=DIS
  15
  16 # RUN: ld.lld %t/a.o %t/tga.o -o %t2 2>&1 | FileCheck %s --check-prefix=WARN
  17 # RUN: llvm-readelf -x .got %t2 | FileCheck %s --check-prefix=HEX
  18 # RUN: llvm-objdump -d --no-leading-addr %t2 | FileCheck %s --check-prefix=DIS
  19
  20 # WARN: warning: {{.*}}.o: disable TLS relaxation due to R_PPC64_GOT_TLS* relocations without R_PPC64_TLSGD/R_PPC64_TLSLD relocations
  21
  22 ## .got+0: x is local - relaxed to LE - its DTPMOD/DTPREL slots are link-time constants.
  23 ## DTPMOD is 1. DTPREL is st_value-0x8000 = -0x8000.
  24 ## .got+16: DTPMOD/DTPREL for _TLS_MODULE_BASE_ is 1 and 0, respectively.
  25 ## .got+32: TPOFFSET for x = st_value-0x7000
  26 # HEX:      section '.got':
  27 # HEX-NEXT: [[#%x,IGNORE:]] 50820210 00000000 01000000 00000000
  28 # HEX-NEXT: [[#%x,IGNORE:]] 00000000 00000000 01000000 00000000
  29 # HEX-NEXT: [[#%x,IGNORE:]] 0080ffff ffffffff 0090ffff ffffffff
  30
  31 ## .TOC.-32768 = (.got+0x8000)-32768 = .got
  32 # DIS-LABEL: <GeneralDynamic>:
  33 # DIS-NEXT:    addis 3, 2, 0
  34 # DIS-NEXT:    addi 3, 3, -32744
  35 # DIS-NEXT:    bl [[#%x,TGA:]]
  36 # DIS-LABEL: <GeneralDynamic_NOTOC>:
  37 # DIS-NEXT:    addis 3, 2, 0
  38 # DIS-NEXT:    addi 3, 3, -32744
  39 # DIS-NEXT:    bl [[#TGA]]
  40
  41 ## LocalDynamic references _TLS_MODULE_BASE_.
  42 ## .TOC.-32752 = (.got+0x8000)-32752 = .got+16
  43 # DIS-LABEL: <LocalDynamic>:
  44 # DIS-NEXT:    addis 3, 2, 0
  45 # DIS-NEXT:    addi 3, 3, -32760
  46 # DIS-NEXT:    bl [[#TGA]]
  47 # DIS-LABEL: <LocalDynamic_NOTOC>:
  48 # DIS-NEXT:    addis 3, 2, 0
  49 # DIS-NEXT:    addi 3, 3, -32760
  50 # DIS-NEXT:    bl [[#TGA]]
  51
  52 ## Technically we don't have to disable IE to LE relaxation,
  53 ## but disabling it for implementation simplicity does not hurt.
  54 # DIS-LABEL: <InitialExec>:
  55 # DIS-NEXT:    addis 3, 2, 0
  56 # DIS-NEXT:    ld 3, -32728(3)
  57 # DIS-NEXT:    add 3, 3, 13
  58
  59 #--- a.s
  60 GeneralDynamic:
  61   addis 3, 2, x@got@tlsgd@ha
  62   addi 3, 3, x@got@tlsgd@l
  63   bl __tls_get_addr
  64   nop
  65
  66 GeneralDynamic_NOTOC:
  67   addis 3, 2, x@got@tlsgd@ha
  68   addi 3, 3, x@got@tlsgd@l
  69   bl __tls_get_addr@notoc
  70   nop
  71
  72 LocalDynamic:
  73   addis 3, 2, x@got@tlsld@ha
  74   addi 3, 3, x@got@tlsld@l
  75   bl __tls_get_addr
  76   nop
  77
  78 LocalDynamic_NOTOC:
  79   addis 3, 2, x@got@tlsld@ha
  80   addi 3, 3, x@got@tlsld@l
  81   bl __tls_get_addr@notoc
  82   nop
  83
  84 InitialExec:
  85   addis 3, 2, x@got@tprel@ha
  86   ld 3, x@got@tprel@l(3)
  87   add 3, 3, x@tls
  88
  89 .globl _start
  90 _start:
  91
  92 .section .tbss,"awT",@nobits
  93 .globl x
  94 x:
  95   .quad 0
  96
  97 #--- b.s
  98 CallOnly:
  99   bl __tls_get_addr
 100   nop
 101   blr
 102
 103 #--- tga.s
 104 .globl __tls_get_addr
 105 __tls_get_addr:
 106   blr