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1# REQUIRES: system-linux2 3## Check that BOLT correctly parses and updates the Linux kernel .smp_locks4## section.5 6# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o7# RUN: %clang %cflags -nostdlib %t.o -o %t.exe \8# RUN: -Wl,--image-base=0xffffffff80000000,--no-dynamic-linker,--no-eh-frame-hdr,--no-pie9# RUN: llvm-bolt %t.exe --print-normalized --keep-nops=0 --bolt-info=0 -o %t.out \10# RUN: 2>&1 | FileCheck %s11 12## Check the output of BOLT with NOPs removed.13 14# RUN: llvm-bolt %t.out -o %t.out.1 --print-normalized 2>&1 | FileCheck %s15 16# CHECK: BOLT-INFO: Linux kernel binary detected17# CHECK: BOLT-INFO: parsed 2 SMP lock entries18 19 .text20 .globl _start21 .type _start, %function22_start:23 nop24 nop25.L0:26 lock incl (%rdi)27# CHECK: lock {{.*}} SMPLock28.L1:29 lock orb $0x40, 0x4(%rsi)30# CHECK: lock {{.*}} SMPLock31 ret32 .size _start, .-_start33 34 .section .smp_locks,"a",@progbits35 .long .L0 - .36 .long .L1 - .37 38## Linux kernel version39 .rodata40 .align 1641 .globl linux_banner42 .type linux_banner, @object43linux_banner:44 .string "Linux version 6.6.61\n"45 .size linux_banner, . - linux_banner46 47## Fake Linux Kernel sections.48 .section __ksymtab,"a",@progbits49 .section __ksymtab_gpl,"a",@progbits50