derek.holloway
7502bf64a4
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37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
// Make sure that during the Hugify pass BOLT adds a BTI instruction to _start.
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#include <stdio.h>
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int main(int argc, char **argv) {
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printf("Hello world\n");
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return 0;
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}
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/*
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REQUIRES: system-linux,bolt-runtime
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RUN: %clang %cflags -mbranch-protection=standard -no-pie %s -o %t.nopie.exe \
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RUN: -Wl,-q,-z,force-bti
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RUN: %clang %cflags -mbranch-protection=standard -fpic %s -o %t.pie.exe \
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RUN: -Wl,-q,-z,force-bti
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RUN: llvm-bolt %t.nopie.exe --lite=0 -o %t.nopie.bolt --hugify | FileCheck %s \
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RUN: -check-prefix=CHECK-BOLT
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RUN: llvm-bolt %t.pie.exe --lite=0 -o %t.pie.bolt --hugify | FileCheck %s \
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RUN: -check-prefix=CHECK-BOLT
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CHECK-BOLT: binary is using BTI
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RUN: llvm-objdump -D %t.nopie.bolt | FileCheck %s -check-prefix=CHECK-OBJDUMP
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RUN: llvm-objdump -D %t.pie.bolt | FileCheck %s -check-prefix=CHECK-OBJDUMP
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CHECK-OBJDUMP: <_start>:
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CHECK-OBJDUMP-NEXT: bti
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CHECK-OBJDUMP: <__bolt_hugify_start_program>:
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CHECK-OBJDUMP-NEXT: adrp x16, 0x[[#%x,ADRP:]]
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CHECK-OBJDUMP-NEXT: add x16, x16, #0x[[#%x,ADD:]]
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CHECK-OBJDUMP-NEXT: br x16
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*/
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