forked from OSchip/llvm-project
225 lines
8.9 KiB
ArmAsm
225 lines
8.9 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: 00000000000102b8 <func2>:
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# NOBTI-NEXT: 102b8: bl 0x102f0 <func3@plt>
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# NOBTI-NEXT: 102bc: ret
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# NOBTI: Disassembly of section .plt:
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# NOBTI: 00000000000102d0 <.plt>:
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# NOBTI-NEXT: 102d0: stp x16, x30, [sp, #-16]!
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# NOBTI-NEXT: 102d4: adrp x16, 0x30000
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# NOBTI-NEXT: 102d8: ldr x17, [x16, #960]
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# NOBTI-NEXT: 102dc: add x16, x16, #960
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# NOBTI-NEXT: 102e0: br x17
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# NOBTI-NEXT: 102e4: nop
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# NOBTI-NEXT: 102e8: nop
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# NOBTI-NEXT: 102ec: nop
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# NOBTI: 00000000000102f0 <func3@plt>:
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# NOBTI-NEXT: 102f0: adrp x16, 0x30000
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# NOBTI-NEXT: 102f4: ldr x17, [x16, #968]
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# NOBTI-NEXT: 102f8: add x16, x16, #968
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# NOBTI-NEXT: 102fc: 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: 0x000303b0 00000000 00000000 00000000 00000000
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# SOGOTPLT-NEXT: 0x000303c0 00000000 00000000 d0020100 00000000
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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 --soname=t.so -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 SOGOTPLT2 %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: 0000000000010348 <func2>:
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# BTISO-NEXT: 10348: bl 0x10380 <func3@plt>
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# BTISO-NEXT: ret
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# BTISO: 0000000000010350 <func3>:
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# BTISO-NEXT: 10350: ret
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# BTISO: Disassembly of section .plt:
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# BTISO: 0000000000010360 <.plt>:
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# BTISO-NEXT: 10360: bti c
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# BTISO-NEXT: stp x16, x30, [sp, #-16]!
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# BTISO-NEXT: adrp x16, 0x30000
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# BTISO-NEXT: ldr x17, [x16, #1136]
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# BTISO-NEXT: add x16, x16, #1136
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# BTISO-NEXT: br x17
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# BTISO-NEXT: nop
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# BTISO-NEXT: nop
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# BTISO: 0000000000010380 <func3@plt>:
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# BTISO-NEXT: 10380: adrp x16, 0x30000
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# BTISO-NEXT: ldr x17, [x16, #1144]
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# BTISO-NEXT: add x16, x16, #1144
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# BTISO-NEXT: br x17
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# SOGOTPLT2: Hex dump of section '.got.plt'
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# SOGOTPLT2-NEXT: 0x00030460 00000000 00000000 00000000 00000000
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# SOGOTPLT2-NEXT: 0x00030470 00000000 00000000 60030100 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 --soname=t2.so -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: 0000000000210348 <func1>:
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# EXECBTI-NEXT: 210348: bl 0x210370 <func2@plt>
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# EXECBTI-NEXT: ret
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# EXECBTI: Disassembly of section .plt:
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# EXECBTI: 0000000000210350 <.plt>:
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# EXECBTI-NEXT: 210350: bti c
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# EXECBTI-NEXT: stp x16, x30, [sp, #-16]!
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# EXECBTI-NEXT: adrp x16, 0x230000
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# EXECBTI-NEXT: ldr x17, [x16, #1160]
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# EXECBTI-NEXT: add x16, x16, #1160
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# EXECBTI-NEXT: br x17
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# EXECBTI-NEXT: nop
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# EXECBTI-NEXT: nop
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# EXECBTI: 0000000000210370 <func2@plt>:
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# EXECBTI-NEXT: 210370: bti c
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# EXECBTI-NEXT: adrp x16, 0x230000
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# EXECBTI-NEXT: ldr x17, [x16, #1168]
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# EXECBTI-NEXT: add x16, x16, #1168
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# EXECBTI-NEXT: br x17
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# EXECBTI-NEXT: 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: 0000000000010348 <func1>:
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# PIE-NEXT: 10348: bl 0x10370 <func2@plt>
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# PIE-NEXT: ret
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# PIE: Disassembly of section .plt:
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# PIE: 0000000000010350 <.plt>:
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# PIE-NEXT: 10350: bti c
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# PIE-NEXT: stp x16, x30, [sp, #-16]!
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# PIE-NEXT: adrp x16, 0x30000
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# PIE-NEXT: ldr x17, [x16, #1176]
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# PIE-NEXT: add x16, x16, #1176
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# PIE-NEXT: br x17
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# PIE-NEXT: nop
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# PIE-NEXT: nop
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# PIE: 0000000000010370 <func2@plt>:
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# PIE-NEXT: 10370: bti c
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# PIE-NEXT: adrp x16, 0x30000
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# PIE-NEXT: ldr x17, [x16, #1184]
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# PIE-NEXT: add x16, x16, #1184
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# PIE-NEXT: br x17
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# PIE-NEXT: 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: 00000000002102e0 <func1>:
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# NOEX-NEXT: 2102e0: bl 0x210310 <func2@plt>
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# NOEX-NEXT: ret
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# NOEX: 00000000002102e8 <func3>:
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# NOEX-NEXT: 2102e8: ret
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# NOEX: Disassembly of section .plt:
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# NOEX: 00000000002102f0 <.plt>:
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# NOEX-NEXT: 2102f0: stp x16, x30, [sp, #-16]!
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# NOEX-NEXT: adrp x16, 0x230000
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# NOEX-NEXT: ldr x17, [x16, #1024]
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# NOEX-NEXT: add x16, x16, #1024
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# NOEX-NEXT: br x17
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# NOEX-NEXT: nop
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# NOEX-NEXT: nop
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# NOEX-NEXT: nop
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# NOEX: 0000000000210310 <func2@plt>:
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# NOEX-NEXT: 210310: adrp x16, 0x230000
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# NOEX-NEXT: ldr x17, [x16, #1032]
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# NOEX-NEXT: add x16, x16, #1032
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# NOEX-NEXT: br x17
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## Force BTI entries with the -z 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 -z 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: -z force-bti: file does not have GNU_PROPERTY_AARCH64_FEATURE_1_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: 0000000000210370 <func1>:
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# FORCE-NEXT: 210370: bl 0x2103a0 <func2@plt>
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# FORCE-NEXT: ret
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# FORCE: 0000000000210378 <func3>:
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# FORCE-NEXT: 210378: ret
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# FORCE: Disassembly of section .plt:
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# FORCE: 0000000000210380 <.plt>:
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# FORCE-NEXT: 210380: bti c
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# FORCE-NEXT: stp x16, x30, [sp, #-16]!
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# FORCE-NEXT: adrp x16, 0x230000
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# FORCE-NEXT: ldr x17, [x16, #1192]
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# FORCE-NEXT: add x16, x16, #1192
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# FORCE-NEXT: br x17
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# FORCE-NEXT: nop
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# FORCE-NEXT: nop
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# FORCE: 00000000002103a0 <func2@plt>:
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# FORCE-NEXT: 2103a0: bti c
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# FORCE-NEXT: adrp x16, 0x230000
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# FORCE-NEXT: ldr x17, [x16, #1200]
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# FORCE-NEXT: add x16, x16, #1200
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# FORCE-NEXT: br x17
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# FORCE-NEXT: 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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