forked from OSchip/llvm-project
219 lines
8.5 KiB
ArmAsm
219 lines
8.5 KiB
ArmAsm
# REQUIRES: aarch64
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# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-bti1.s -o %t1.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func3.s -o %t2.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func3-bti.s -o %t3.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %p/Inputs/aarch64-func2.s -o %tno.o
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## We do not add BTI support when the inputs don't have the .note.gnu.property
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## field.
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# RUN: ld.lld %tno.o %t3.o --shared -o %tno.so
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# RUN: llvm-objdump -d -mattr=+bti --no-show-raw-insn %tno.so | FileCheck --check-prefix=NOBTI %s
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# RUN: llvm-readelf -x .got.plt %tno.so | FileCheck --check-prefix SOGOTPLT %s
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# RUN: llvm-readelf --dynamic-table %tno.so | FileCheck --check-prefix NOBTIDYN %s
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# NOBTIDYN-NOT: 0x0000000070000001 (AARCH64_BTI_PLT)
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# NOBTIDYN-NOT: 0x0000000070000003 (AARCH64_PAC_PLT)
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# NOBTI: 0000000000010000 func2:
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# NOBTI-NEXT: 10000: bl #48 <func3@plt>
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# NOBTI-NEXT: 10004: ret
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# NOBTI: Disassembly of section .plt:
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# NOBTI: 0000000000010010 .plt:
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# NOBTI-NEXT: 10010: stp x16, x30, [sp, #-16]!
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# NOBTI-NEXT: 10014: adrp x16, #131072
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# NOBTI-NEXT: 10018: ldr x17, [x16, #16]
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# NOBTI-NEXT: 1001c: add x16, x16, #16
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# NOBTI-NEXT: 10020: br x17
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# NOBTI-NEXT: 10024: nop
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# NOBTI-NEXT: 10028: nop
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# NOBTI-NEXT: 1002c: nop
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# NOBTI: 0000000000010030 func3@plt:
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# NOBTI-NEXT: 10030: adrp x16, #131072
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# NOBTI-NEXT: 10034: ldr x17, [x16, #24]
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# NOBTI-NEXT: 10038: add x16, x16, #24
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# NOBTI-NEXT: 1003c: br x17
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## Expect a bti c at the start of plt[0], the plt entries do not need bti c as
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## their address doesn't escape the shared object, so they can't be indirectly
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## called. Expect no other difference.
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# RUN: ld.lld %t1.o %t3.o --shared -o %t.so
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# RUN: llvm-readelf -n %t.so | FileCheck --check-prefix BTIPROP %s
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# RUN: llvm-objdump -d -mattr=+bti --no-show-raw-insn %t.so | FileCheck --check-prefix BTISO %s
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# RUN: llvm-readelf -x .got.plt %t.so | FileCheck --check-prefix SOGOTPLT %s
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# RUN: llvm-readelf --dynamic-table %t.so | FileCheck --check-prefix BTIDYN %s
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# BTIPROP: Properties: aarch64 feature: BTI
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# BTIDYN: 0x0000000070000001 (AARCH64_BTI_PLT)
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# BTIDYN-NOT: 0x0000000070000003 (AARCH64_PAC_PLT)
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# BTISO: 0000000000010000 func2:
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# BTISO-NEXT: 10000: bl #48 <func3@plt>
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# BTISO-NEXT: 10004: ret
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# BTISO: Disassembly of section .plt:
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# BTISO: 0000000000010010 .plt:
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# BTISO-NEXT: 10010: bti c
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# BTISO-NEXT: 10014: stp x16, x30, [sp, #-16]!
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# BTISO-NEXT: 10018: adrp x16, #131072
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# BTISO-NEXT: 1001c: ldr x17, [x16, #16]
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# BTISO-NEXT: 10020: add x16, x16, #16
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# BTISO-NEXT: 10024: br x17
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# BTISO-NEXT: 10028: nop
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# BTISO-NEXT: 1002c: nop
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# BTISO: 0000000000010030 func3@plt:
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# BTISO-NEXT: 10030: adrp x16, #131072
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# BTISO-NEXT: 10034: ldr x17, [x16, #24]
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# BTISO-NEXT: 10038: add x16, x16, #24
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# BTISO-NEXT: 1003c: br x17
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## The .got.plt should be identical between the BTI and no BTI DSO PLT.
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# SOGOTPLT: Hex dump of section '.got.plt'
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# SOGOTPLT-NEXT: 0x00030000 00000000 00000000 00000000 00000000
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# SOGOTPLT-NEXT: 0x00030010 00000000 00000000 10000100 00000000
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## Build an executable with all relocatable inputs having the BTI
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## .note.gnu.property. We expect a bti c in front of all PLT entries as the
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## address of a PLT entry can escape an executable.
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# RUN: ld.lld %t2.o --shared -o %t2.so
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# RUN: ld.lld %t.o %t.so %t2.so -o %t.exe
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# RUN: llvm-readelf --dynamic-table -n %t.exe | FileCheck --check-prefix=BTIPROP %s
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# RUN: llvm-objdump -d -mattr=+bti --no-show-raw-insn %t.exe | FileCheck --check-prefix=EXECBTI %s
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# EXECBTI: Disassembly of section .text:
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# EXECBTI: 0000000000210000 func1:
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# EXECBTI-NEXT: 210000: bl #48 <func2@plt>
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# EXECBTI-NEXT: 210004: ret
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# EXECBTI: Disassembly of section .plt:
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# EXECBTI: 0000000000210010 .plt:
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# EXECBTI-NEXT: 210010: bti c
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# EXECBTI-NEXT: 210014: stp x16, x30, [sp, #-16]!
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# EXECBTI-NEXT: 210018: adrp x16, #131072
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# EXECBTI-NEXT: 21001c: ldr x17, [x16, #16]
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# EXECBTI-NEXT: 210020: add x16, x16, #16
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# EXECBTI-NEXT: 210024: br x17
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# EXECBTI-NEXT: 210028: nop
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# EXECBTI-NEXT: 21002c: nop
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# EXECBTI: 0000000000210030 func2@plt:
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# EXECBTI-NEXT: 210030: bti c
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# EXECBTI-NEXT: 210034: adrp x16, #131072
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# EXECBTI-NEXT: 210038: ldr x17, [x16, #24]
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# EXECBTI-NEXT: 21003c: add x16, x16, #24
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# EXECBTI-NEXT: 210040: br x17
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# EXECBTI-NEXT: 210044: nop
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## We expect the same for PIE, as the address of an ifunc can escape
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# RUN: ld.lld --pie %t.o %t.so %t2.so -o %tpie.exe
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# RUN: llvm-readelf -n %tpie.exe | FileCheck --check-prefix=BTIPROP %s
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# RUN: llvm-readelf --dynamic-table -n %tpie.exe | FileCheck --check-prefix=BTIPROP %s
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# RUN: llvm-objdump -d -mattr=+bti --no-show-raw-insn %tpie.exe | FileCheck --check-prefix=PIE %s
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# PIE: Disassembly of section .text:
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# PIE: 0000000000010000 func1:
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# PIE-NEXT: 10000: bl #48 <func2@plt>
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# PIE-NEXT: 10004: ret
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# PIE: Disassembly of section .plt:
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# PIE: 0000000000010010 .plt:
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# PIE-NEXT: 10010: bti c
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# PIE-NEXT: 10014: stp x16, x30, [sp, #-16]!
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# PIE-NEXT: 10018: adrp x16, #131072
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# PIE-NEXT: 1001c: ldr x17, [x16, #16]
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# PIE-NEXT: 10020: add x16, x16, #16
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# PIE-NEXT: 10024: br x17
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# PIE-NEXT: 10028: nop
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# PIE-NEXT: 1002c: nop
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# PIE: 0000000000010030 func2@plt:
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# PIE-NEXT: 10030: bti c
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# PIE-NEXT: 10034: adrp x16, #131072
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# PIE-NEXT: 10038: ldr x17, [x16, #24]
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# PIE-NEXT: 1003c: add x16, x16, #24
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# PIE-NEXT: 10040: br x17
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# PIE-NEXT: 10044: nop
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## Build and executable with not all relocatable inputs having the BTI
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## .note.property, expect no bti c and no .note.gnu.property entry
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# RUN: ld.lld %t.o %t2.o %t.so -o %tnobti.exe
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# RUN: llvm-readelf --dynamic-table %tnobti.exe | FileCheck --check-prefix NOBTIDYN %s
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# RUN: llvm-objdump -d -mattr=+bti --no-show-raw-insn %tnobti.exe | FileCheck --check-prefix=NOEX %s
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# NOEX: Disassembly of section .text:
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# NOEX: 0000000000210000 func1:
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# NOEX-NEXT: 210000: bl #48 <func2@plt>
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# NOEX-NEXT: 210004: ret
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# NOEX: 0000000000210008 func3:
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# NOEX-NEXT: 210008: ret
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# NOEX: Disassembly of section .plt:
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# NOEX: 0000000000210010 .plt:
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# NOEX-NEXT: 210010: stp x16, x30, [sp, #-16]!
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# NOEX-NEXT: 210014: adrp x16, #131072
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# NOEX-NEXT: 210018: ldr x17, [x16, #16]
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# NOEX-NEXT: 21001c: add x16, x16, #16
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# NOEX-NEXT: 210020: br x17
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# NOEX-NEXT: 210024: nop
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# NOEX-NEXT: 210028: nop
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# NOEX-NEXT: 21002c: nop
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# NOEX: 0000000000210030 func2@plt:
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# NOEX-NEXT: 210030: adrp x16, #131072
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# NOEX-NEXT: 210034: ldr x17, [x16, #24]
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# NOEX-NEXT: 210038: add x16, x16, #24
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# NOEX-NEXT: 21003c: br x17
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## Force BTI entries with the --force-bti command line option. Expect a warning
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## from the file without the .note.gnu.property.
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# RUN: ld.lld %t.o %t2.o --force-bti %t.so -o %tforcebti.exe 2>&1 | FileCheck --check-prefix=FORCE-WARN %s
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# FORCE-WARN: aarch64-feature-bti.s.tmp2.o: --force-bti: file does not have BTI property
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# RUN: llvm-readelf -n %tforcebti.exe | FileCheck --check-prefix=BTIPROP %s
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# RUN: llvm-readelf --dynamic-table %tforcebti.exe | FileCheck --check-prefix BTIDYN %s
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# RUN: llvm-objdump -d -mattr=+bti --no-show-raw-insn %tforcebti.exe | FileCheck --check-prefix=FORCE %s
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# FORCE: Disassembly of section .text:
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# FORCE: 0000000000210000 func1:
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# FORCE-NEXT: 210000: bl #48 <func2@plt>
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# FORCE-NEXT: 210004: ret
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# FORCE: 0000000000210008 func3:
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# FORCE-NEXT: 210008: ret
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# FORCE: Disassembly of section .plt:
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# FORCE: 0000000000210010 .plt:
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# FORCE-NEXT: 210010: bti c
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# FORCE-NEXT: 210014: stp x16, x30, [sp, #-16]!
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# FORCE-NEXT: 210018: adrp x16, #131072
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# FORCE-NEXT: 21001c: ldr x17, [x16, #16]
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# FORCE-NEXT: 210020: add x16, x16, #16
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# FORCE-NEXT: 210024: br x17
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# FORCE-NEXT: 210028: nop
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# FORCE-NEXT: 21002c: nop
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# FORCE: 0000000000210030 func2@plt:
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# FORCE-NEXT: 210030: bti c
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# FORCE-NEXT: 210034: adrp x16, #131072
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# FORCE-NEXT: 210038: ldr x17, [x16, #24]
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# FORCE-NEXT: 21003c: add x16, x16, #24
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# FORCE-NEXT: 210040: br x17
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# FORCE-NEXT: 210044: nop
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.section ".note.gnu.property", "a"
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.long 4
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.long 0x10
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.long 0x5
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.asciz "GNU"
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.long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND
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.long 4
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.long 1 // GNU_PROPERTY_AARCH64_FEATURE_1_BTI
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.long 0
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.text
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.globl _start
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.type func1,%function
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func1:
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bl func2
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ret
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