forked from OSchip/llvm-project
130 lines
5.1 KiB
ArmAsm
130 lines
5.1 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-pac1.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-pac.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 PAC 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=+v8.3a --no-show-raw-insn %tno.so | FileCheck --check-prefix=NOPAC %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 NOPACDYN %s
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# NOPAC: 0000000000010000 func2:
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# NOPAC-NEXT: 10000: bl #48 <func3@plt>
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# NOPAC-NEXT: 10004: ret
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# NOPAC: Disassembly of section .plt:
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# NOPAC: 0000000000010010 .plt:
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# NOPAC-NEXT: 10010: stp x16, x30, [sp, #-16]!
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# NOPAC-NEXT: 10014: adrp x16, #131072
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# NOPAC-NEXT: 10018: ldr x17, [x16, #16]
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# NOPAC-NEXT: 1001c: add x16, x16, #16
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# NOPAC-NEXT: 10020: br x17
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# NOPAC-NEXT: 10024: nop
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# NOPAC-NEXT: 10028: nop
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# NOPAC-NEXT: 1002c: nop
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# NOPAC: 0000000000010030 func3@plt:
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# NOPAC-NEXT: 10030: adrp x16, #131072
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# NOPAC-NEXT: 10034: ldr x17, [x16, #24]
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# NOPAC-NEXT: 10038: add x16, x16, #24
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# NOPAC-NEXT: 1003c: br x17
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# NOPACDYN-NOT: 0x0000000070000001 (AARCH64_BTI_PLT)
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# NOPACDYN-NOT: 0x0000000070000003 (AARCH64_PAC_PLT)
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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 PACPROP %s
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# RUN: llvm-objdump -d -mattr=+v8.3a --no-show-raw-insn %t.so | FileCheck --check-prefix PACSO %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 PACDYN %s
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## PAC has no effect on PLT[0], for PLT[N] autia1716 is used to authenticate
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## the address in x17 (context in x16) before branching to it. The dynamic
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## loader is responsible for calling pacia1716 on the entry.
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# PACSO: 0000000000010000 func2:
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# PACSO-NEXT: 10000: bl #48 <func3@plt>
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# PACSO-NEXT: 10004: ret
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# PACSO: Disassembly of section .plt:
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# PACSO: 0000000000010010 .plt:
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# PACSO-NEXT: 10010: stp x16, x30, [sp, #-16]!
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# PACSO-NEXT: 10014: adrp x16, #131072
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# PACSO-NEXT: 10018: ldr x17, [x16, #16]
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# PACSO-NEXT: 1001c: add x16, x16, #16
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# PACSO-NEXT: 10020: br x17
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# PACSO-NEXT: 10024: nop
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# PACSO-NEXT: 10028: nop
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# PACSO-NEXT: 1002c: nop
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# PACSO: 0000000000010030 func3@plt:
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# PACSO-NEXT: 10030: adrp x16, #131072
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# PACSO-NEXT: 10034: ldr x17, [x16, #24]
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# PACSO-NEXT: 10038: add x16, x16, #24
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# PACSO-NEXT: 1003c: autia1716
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# PACSO-NEXT: 10040: br x17
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# PACSO-NEXT: 10044: nop
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# The .got.plt should be identical between the PAC and no PAC 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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# PACPROP: Properties: aarch64 feature: PAC
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# PACDYN-NOT: 0x0000000070000001 (AARCH64_BTI_PLT)
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# PACDYN: 0x0000000070000003 (AARCH64_PAC_PLT)
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## Turn on PAC entries with the --pac-plt command line option. There are no
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## warnings in this case as the choice to use PAC in PLT entries is orthogonal
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## to the choice of using PAC in relocatable objects. The presence of the PAC
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## .note.gnu.property is an indication of preference by the relocatable object.
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# RUN: ld.lld %t.o %t2.o --pac-plt %t.so -o %tpacplt.exe
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# RUN: llvm-readelf -n %tpacplt.exe | FileCheck --check-prefix=PACPROP %s
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# RUN: llvm-readelf --dynamic-table %tpacplt.exe | FileCheck --check-prefix PACDYN %s
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# RUN: llvm-objdump -d -mattr=+v8.3a --no-show-raw-insn %tpacplt.exe | FileCheck --check-prefix PACPLT %s
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# PACPLT: Disassembly of section .text:
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# PACPLT: 0000000000210000 func1:
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# PACPLT-NEXT: 210000: bl #48 <func2@plt>
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# PACPLT-NEXT: 210004: ret
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# PACPLT: 0000000000210008 func3:
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# PACPLT-NEXT: 210008: ret
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# PACPLT: Disassembly of section .plt:
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# PACPLT: 0000000000210010 .plt:
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# PACPLT-NEXT: 210010: stp x16, x30, [sp, #-16]!
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# PACPLT-NEXT: 210014: adrp x16, #131072
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# PACPLT-NEXT: 210018: ldr x17, [x16, #16]
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# PACPLT-NEXT: 21001c: add x16, x16, #16
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# PACPLT-NEXT: 210020: br x17
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# PACPLT-NEXT: 210024: nop
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# PACPLT-NEXT: 210028: nop
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# PACPLT-NEXT: 21002c: nop
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# PACPLT: 0000000000210030 func2@plt:
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# PACPLT-NEXT: 210030: adrp x16, #131072
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# PACPLT-NEXT: 210034: ldr x17, [x16, #24]
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# PACPLT-NEXT: 210038: add x16, x16, #24
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# PACPLT-NEXT: 21003c: autia1716
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# PACPLT-NEXT: 210040: br x17
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# PACPLT-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 2 // GNU_PROPERTY_AARCH64_FEATURE_1_PAC
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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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