lld/test/ELF/aarch64-feature-btipac.s

   1 # REQUIRES: aarch64
   2 # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t.o
   3 # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-btipac1.s -o %t1.o
   4 # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func3.s -o %t3.o
   5 # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func3-btipac.s -o %t3btipac.o
   6
   7 ## Build shared library with all inputs having BTI and PAC, expect PLT
   8 ## entries supporting both PAC and BTI. For a shared library this means:
   9 ## PLT[0] has bti c at start
  10 ## PLT[n] has autia1716 before br x17
  11
  12 # RUN: ld.lld %t1.o %t3btipac.o --shared --soname=t.so -o %t.so
  13 # RUN: llvm-readelf -n %t.so | FileCheck --check-prefix BTIPACPROP %s
  14 # RUN: llvm-objdump --no-print-imm-hex -d --mattr=+v8.5a --no-show-raw-insn %t.so | FileCheck --check-prefix BTIPACSO %s
  15 # RUN: llvm-readelf --dynamic-table %t.so | FileCheck --check-prefix BTIPACDYN %s
  16
  17 # BTIPACSO: Disassembly of section .text:
  18 # BTIPACSO: 0000000000010348 <func2>:
  19 # BTIPACSO-NEXT:    10348:              bl      0x10380 <func3@plt>
  20 # BTIPACSO-NEXT:                        ret
  21 # BTIPACSO: 0000000000010350 <func3>:
  22 # BTIPACSO-NEXT:    10350:              ret
  23 # BTIPACSO: Disassembly of section .plt:
  24 # BTIPACSO: 0000000000010360 <.plt>:
  25 # BTIPACSO-NEXT:    10360:              bti     c
  26 # BTIPACSO-NEXT:                        stp     x16, x30, [sp, #-16]!
  27 # BTIPACSO-NEXT:                        adrp    x16, 0x30000
  28 # BTIPACSO-NEXT:                        ldr     x17, [x16, #1144]
  29 # BTIPACSO-NEXT:                        add     x16, x16, #1144
  30 # BTIPACSO-NEXT:                        br      x17
  31 # BTIPACSO-NEXT:                        nop
  32 # BTIPACSO-NEXT:                        nop
  33 # BTIPACSO: 0000000000010380 <func3@plt>:
  34 # BTIPACSO-NEXT:    10380:              adrp    x16, 0x30000
  35 # BTIPACSO-NEXT:                        ldr     x17, [x16, #1152]
  36 # BTIPACSO-NEXT:                        add     x16, x16, #1152
  37 # BTIPACSO-NEXT:                        br      x17
  38
  39 # BTIPACPROP:    Properties:    aarch64 feature: BTI, PAC
  40
  41 # BTIPACDYN:   0x0000000070000001 (AARCH64_BTI_PLT)
  42 # BTIPACDYN-NOT:   0x0000000070000003 (AARCH64_PAC_PLT)
  43
  44 ## Make an executable with both BTI and PAC properties. Expect:
  45 ## PLT[0] bti c as first instruction
  46 ## PLT[n] bti n as first instruction
  47
  48 # RUN: ld.lld %t.o %t3btipac.o %t.so -o %t.exe
  49 # RUN: llvm-readelf -n %t.exe | FileCheck --check-prefix=BTIPACPROP %s
  50 # RUN: llvm-objdump --no-print-imm-hex -d --mattr=+v8.5a --no-show-raw-insn %t.exe | FileCheck --check-prefix BTIPACEX %s
  51 # RUN: llvm-readelf --dynamic-table %t.exe | FileCheck --check-prefix BTIPACDYNEX %s
  52
  53 # BTIPACEX: Disassembly of section .text:
  54 # BTIPACEX: 0000000000210370 <func1>:
  55 # BTIPACEX-NEXT:   210370:              bl      0x2103a0 <func2@plt>
  56 # BTIPACEX-NEXT:                        ret
  57 # BTIPACEX-NEXT:                        ret
  58 # BTIPACEX: 000000000021037c <func3>:
  59 # BTIPACEX-NEXT:   21037c:              ret
  60 # BTIPACEX: Disassembly of section .plt:
  61 # BTIPACEX: 0000000000210380 <.plt>:
  62 # BTIPACEX-NEXT:   210380:              bti     c
  63 # BTIPACEX-NEXT:                        stp     x16, x30, [sp, #-16]!
  64 # BTIPACEX-NEXT:                        adrp    x16, 0x230000
  65 # BTIPACEX-NEXT:                        ldr     x17, [x16, #1192]
  66 # BTIPACEX-NEXT:                        add     x16, x16, #1192
  67 # BTIPACEX-NEXT:                        br      x17
  68 # BTIPACEX-NEXT:                        nop
  69 # BTIPACEX-NEXT:                        nop
  70 # BTIPACEX: 00000000002103a0 <func2@plt>:
  71 # BTIPACEX-NEXT:   2103a0:              adrp    x16, 0x230000
  72 # BTIPACEX-NEXT:                        ldr     x17, [x16, #1200]
  73 # BTIPACEX-NEXT:                        add     x16, x16, #1200
  74 # BTIPACEX-NEXT:                        br      x17
  75 # BTIPACEX-NEXT:                        nop
  76 # BTIPACEX-NEXT:                        nop
  77
  78 # BTIPACDYNEX:   0x0000000070000001 (AARCH64_BTI_PLT)
  79 # BTIPACDYNEX-NOT:   0x0000000070000003 (AARCH64_PAC_PLT)
  80
  81 ## Check that combinations of BTI+PAC with 0 properties results in standard PLT
  82
  83 # RUN: ld.lld %t.o %t3.o %t.so -o %t.exe
  84 # RUN: llvm-objdump --no-print-imm-hex -d --mattr=+v8.5a --no-show-raw-insn %t.exe | FileCheck --check-prefix EX %s
  85 # RUN: llvm-readelf --dynamic-table %t.exe | FileCheck --check-prefix=NODYN %s
  86
  87 # EX: Disassembly of section .text:
  88 # EX: 00000000002102e0 <func1>:
  89 # EX-NEXT:   2102e0: bl      0x210310 <func2@plt>
  90 # EX-NEXT:           ret
  91 # EX-NEXT:           ret
  92 # EX: 00000000002102ec <func3>:
  93 # EX-NEXT:   2102ec: ret
  94 # EX: Disassembly of section .plt:
  95 # EX: 00000000002102f0 <.plt>:
  96 # EX-NEXT:   2102f0: stp     x16, x30, [sp, #-16]!
  97 # EX-NEXT:           adrp    x16, 0x230000
  98 # EX-NEXT:           ldr     x17, [x16, #1024]
  99 # EX-NEXT:           add     x16, x16, #1024
 100 # EX-NEXT:           br      x17
 101 # EX-NEXT:           nop
 102 # EX-NEXT:           nop
 103 # EX-NEXT:           nop
 104 # EX: 0000000000210310 <func2@plt>:
 105 # EX:        210310: adrp    x16, 0x230000
 106 # EX-NEXT:           ldr     x17, [x16, #1032]
 107 # EX-NEXT:           add     x16, x16, #1032
 108 # EX-NEXT:           br      x17
 109
 110 # NODYN-NOT:   0x0000000070000001 (AARCH64_BTI_PLT)
 111 # NODYN-NOT:   0x0000000070000003 (AARCH64_PAC_PLT)
 112
 113 ## Check that combination of -z pac-plt and -z force-bti warns for the file that
 114 ## doesn't contain the BTI property, but generates PAC and BTI PLT sequences.
 115 ## The -z pac-plt doesn't warn as it is not required for correctness.
 116 ## Expect:
 117 ## PLT[0] bti c as first instruction
 118 ## PLT[n] bti n as first instruction, autia1716 before br x17
 119
 120 # RUN: ld.lld %t.o %t3.o %t.so -z pac-plt -z force-bti -o %t.exe 2>&1 | FileCheck --check-prefix=FORCE-WARN %s
 121
 122 # FORCE-WARN: aarch64-feature-btipac.s.tmp3.o: -z force-bti: file does not have GNU_PROPERTY_AARCH64_FEATURE_1_BTI property
 123
 124 # RUN: llvm-readelf -n %t.exe | FileCheck --check-prefix=BTIPACPROP %s
 125 # RUN: llvm-objdump --no-print-imm-hex -d --mattr=+v8.5a --no-show-raw-insn %t.exe | FileCheck --check-prefix BTIPACEX2 %s
 126 # RUN: llvm-readelf --dynamic-table %t.exe | FileCheck --check-prefix BTIPACDYN2 %s
 127 .section ".note.gnu.property", "a"
 128 .long 4
 129 .long 0x10
 130 .long 0x5
 131 .asciz "GNU"
 132
 133 .long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND
 134 .long 4
 135 .long 3          // GNU_PROPERTY_AARCH64_FEATURE_1_BTI and PAC
 136 .long 0
 137
 138 .text
 139 .globl _start
 140 .type func1,%function
 141 func1:
 142   bl func2
 143   ret
 144 .globl func3
 145 .type func3,%function
 146   ret
 147
 148 # BTIPACEX2: Disassembly of section .text:
 149 # BTIPACEX2: 0000000000210370 <func1>:
 150 # BTIPACEX2-NEXT:   210370:              bl      0x2103a0 <func2@plt>
 151 # BTIPACEX2-NEXT:                        ret
 152 # BTIPACEX2-NEXT:                        ret
 153 # BTIPACEX2: 000000000021037c <func3>:
 154 # BTIPACEX2-NEXT:   21037c:              ret
 155 # BTIPACEX2: Disassembly of section .plt:
 156 # BTIPACEX2: 0000000000210380 <.plt>:
 157 # BTIPACEX2-NEXT:   210380:              bti     c
 158 # BTIPACEX2-NEXT:                        stp     x16, x30, [sp, #-16]!
 159 # BTIPACEX2-NEXT:                        adrp    x16, 0x230000
 160 # BTIPACEX2-NEXT:                        ldr     x17, [x16, #1208]
 161 # BTIPACEX2-NEXT:                        add     x16, x16, #1208
 162 # BTIPACEX2-NEXT:                        br      x17
 163 # BTIPACEX2-NEXT:                        nop
 164 # BTIPACEX2-NEXT:                        nop
 165 # BTIPACEX2: 00000000002103a0 <func2@plt>:
 166 # BTIPACEX2-NEXT:   2103a0:              adrp    x16, 0x230000
 167 # BTIPACEX2-NEXT:                        ldr     x17, [x16, #1216]
 168 # BTIPACEX2-NEXT:                        add     x16, x16, #1216
 169 # BTIPACEX2-NEXT:                        autia1716
 170 # BTIPACEX2-NEXT:                        br      x17
 171 # BTIPACEX2-NEXT:                        nop
 172
 173 # BTIPACDYN2:        0x0000000070000001 (AARCH64_BTI_PLT)
 174 # BTIPACDYN2-NEXT:   0x0000000070000003 (AARCH64_PAC_PLT)