| # REQUIRES: aarch64 |
| # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t.o |
| # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-btipac1.s -o %t1.o |
| # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func3.s -o %t3.o |
| # RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func3-btipac.s -o %t3btipac.o |
| |
| ## Build shared library with all inputs having BTI and PAC, expect PLT |
| ## entries supporting both PAC and BTI. For a shared library this means: |
| ## PLT[0] has bti c at start |
| ## PLT[n] has autia1716 before br x17 |
| |
| # RUN: ld.lld %t1.o %t3btipac.o --shared -o %t.so |
| # RUN: llvm-readelf -n %t.so | FileCheck --check-prefix BTIPACPROP %s |
| # RUN: llvm-objdump -d -mattr=+v8.5a --no-show-raw-insn %t.so | FileCheck --check-prefix BTIPACSO %s |
| # RUN: llvm-readelf --dynamic-table %t.so | FileCheck --check-prefix BTIPACDYN %s |
| |
| # BTIPACSO: Disassembly of section .text: |
| # BTIPACSO: 0000000000010000 func2: |
| # BTIPACSO-NEXT: 10000: bl #48 <func3@plt> |
| # BTIPACSO-NEXT: 10004: ret |
| # BTIPACSO: 0000000000010008 func3: |
| # BTIPACSO-NEXT: 10008: ret |
| # BTIPACSO: Disassembly of section .plt: |
| # BTIPACSO: 0000000000010010 .plt: |
| # BTIPACSO-NEXT: 10010: bti c |
| # BTIPACSO-NEXT: 10014: stp x16, x30, [sp, #-16]! |
| # BTIPACSO-NEXT: 10018: adrp x16, #131072 |
| # BTIPACSO-NEXT: 1001c: ldr x17, [x16, #16] |
| # BTIPACSO-NEXT: 10020: add x16, x16, #16 |
| # BTIPACSO-NEXT: 10024: br x17 |
| # BTIPACSO-NEXT: 10028: nop |
| # BTIPACSO-NEXT: 1002c: nop |
| # BTIPACSO: 0000000000010030 func3@plt: |
| # BTIPACSO-NEXT: 10030: adrp x16, #131072 |
| # BTIPACSO-NEXT: 10034: ldr x17, [x16, #24] |
| # BTIPACSO-NEXT: 10038: add x16, x16, #24 |
| # BTIPACSO-NEXT: 1003c: autia1716 |
| # BTIPACSO-NEXT: 10040: br x17 |
| # BTIPACSO-NEXT: 10044: nop |
| |
| # BTIPACPROP: Properties: aarch64 feature: BTI, PAC |
| |
| # BTIPACDYN: 0x0000000070000001 (AARCH64_BTI_PLT) |
| # BTIPACDYN: 0x0000000070000003 (AARCH64_PAC_PLT) |
| |
| ## Make an executable with both BTI and PAC properties. Expect: |
| ## PLT[0] bti c as first instruction |
| ## PLT[n] bti n as first instruction, autia1716 before br x17 |
| |
| # RUN: ld.lld %t.o %t3btipac.o %t.so -o %t.exe |
| # RUN: llvm-readelf -n %t.exe | FileCheck --check-prefix=BTIPACPROP %s |
| # RUN: llvm-objdump -d -mattr=+v8.5a --no-show-raw-insn %t.exe | FileCheck --check-prefix BTIPACEX %s |
| # RUN: llvm-readelf --dynamic-table %t.exe | FileCheck --check-prefix BTIPACDYN %s |
| |
| # BTIPACEX: Disassembly of section .text: |
| # BTIPACEX: 0000000000210000 func1: |
| # BTIPACEX-NEXT: 210000: bl #48 <func2@plt> |
| # BTIPACEX-NEXT: 210004: ret |
| # BTIPACEX-NEXT: 210008: ret |
| # BTIPACEX: 000000000021000c func3: |
| # BTIPACEX-NEXT: 21000c: ret |
| # BTIPACEX: Disassembly of section .plt: |
| # BTIPACEX: 0000000000210010 .plt: |
| # BTIPACEX-NEXT: 210010: bti c |
| # BTIPACEX-NEXT: 210014: stp x16, x30, [sp, #-16]! |
| # BTIPACEX-NEXT: 210018: adrp x16, #131072 |
| # BTIPACEX-NEXT: 21001c: ldr x17, [x16, #16] |
| # BTIPACEX-NEXT: 210020: add x16, x16, #16 |
| # BTIPACEX-NEXT: 210024: br x17 |
| # BTIPACEX-NEXT: 210028: nop |
| # BTIPACEX-NEXT: 21002c: nop |
| # BTIPACEX: 0000000000210030 func2@plt: |
| # BTIPACEX-NEXT: 210030: bti c |
| # BTIPACEX-NEXT: 210034: adrp x16, #131072 |
| # BTIPACEX-NEXT: 210038: ldr x17, [x16, #24] |
| # BTIPACEX-NEXT: 21003c: add x16, x16, #24 |
| # BTIPACEX-NEXT: 210040: autia1716 |
| # BTIPACEX-NEXT: 210044: br x17 |
| |
| ## Check that combinations of BTI+PAC with 0 properties results in standard PLT |
| |
| # RUN: ld.lld %t.o %t3.o %t.so -o %t.exe |
| # RUN: llvm-objdump -d -mattr=+v8.5a --no-show-raw-insn %t.exe | FileCheck --check-prefix EX %s |
| # RUN: llvm-readelf --dynamic-table %t.exe | FileCheck --check-prefix=NODYN %s |
| |
| # EX: Disassembly of section .text: |
| # EX: 0000000000210000 func1: |
| # EX-NEXT: 210000: bl #48 <func2@plt> |
| # EX-NEXT: 210004: ret |
| # EX-NEXT: 210008: ret |
| # EX: 000000000021000c func3: |
| # EX-NEXT: 21000c: ret |
| # EX: Disassembly of section .plt: |
| # EX: 0000000000210010 .plt: |
| # EX-NEXT: 210010: stp x16, x30, [sp, #-16]! |
| # EX-NEXT: 210014: adrp x16, #131072 |
| # EX-NEXT: 210018: ldr x17, [x16, #16] |
| # EX-NEXT: 21001c: add x16, x16, #16 |
| # EX-NEXT: 210020: br x17 |
| # EX-NEXT: 210024: nop |
| # EX-NEXT: 210028: nop |
| # EX-NEXT: 21002c: nop |
| # EX: 0000000000210030 func2@plt: |
| # EX: 210030: adrp x16, #131072 |
| # EX-NEXT: 210034: ldr x17, [x16, #24] |
| # EX-NEXT: 210038: add x16, x16, #24 |
| # EX-NEXT: 21003c: br x17 |
| |
| # NODYN-NOT: 0x0000000070000001 (AARCH64_BTI_PLT) |
| # NODYN-NOT: 0x0000000070000003 (AARCH64_PAC_PLT) |
| |
| ## Check that combination of --pac-plt and --force-bti warns for the file that |
| ## doesn't contain the BTI property, but generates PAC and BTI PLT sequences. |
| ## The --pac-plt doesn't warn as it is not required for correctness. |
| |
| # RUN: ld.lld %t.o %t3.o %t.so --pac-plt --force-bti -o %t.exe 2>&1 | FileCheck --check-prefix=FORCE-WARN %s |
| |
| # FORCE-WARN: aarch64-feature-btipac.s.tmp3.o: --force-bti: file does not have BTI property |
| |
| # RUN: llvm-readelf -n %t.exe | FileCheck --check-prefix=BTIPACPROP %s |
| # RUN: llvm-objdump -d -mattr=+v8.5a --no-show-raw-insn %t.exe | FileCheck --check-prefix BTIPACEX %s |
| # RUN: llvm-readelf --dynamic-table %t.exe | FileCheck --check-prefix BTIPACDYN %s |
| .section ".note.gnu.property", "a" |
| .long 4 |
| .long 0x10 |
| .long 0x5 |
| .asciz "GNU" |
| |
| .long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND |
| .long 4 |
| .long 3 // GNU_PROPERTY_AARCH64_FEATURE_1_BTI and PAC |
| .long 0 |
| |
| .text |
| .globl _start |
| .type func1,%function |
| func1: |
| bl func2 |
| ret |
| .globl func3 |
| .type func3,%function |
| ret |