diff options
Diffstat (limited to 'bolt/test/X86/linux-pci-fixup.s')
| -rw-r--r-- | bolt/test/X86/linux-pci-fixup.s | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/bolt/test/X86/linux-pci-fixup.s b/bolt/test/X86/linux-pci-fixup.s new file mode 100644 index 000000000000..a574ba84c4df --- /dev/null +++ b/bolt/test/X86/linux-pci-fixup.s @@ -0,0 +1,41 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o +# RUN: %clang %cflags -nostdlib %t.o -o %t.exe \ +# RUN: -Wl,--image-base=0xffffffff80000000,--no-dynamic-linker,--no-eh-frame-hdr,--no-pie +# RUN: llvm-bolt %t.exe --print-normalized -o %t.out |& FileCheck %s + +## Check that BOLT correctly parses the Linux kernel .pci_fixup section and +## verify that PCI fixup hook in the middle of a function is detected. + +# CHECK: BOLT-INFO: Linux kernel binary detected +# CHECK: BOLT-WARNING: PCI fixup detected in the middle of function _start +# CHECK: BOLT-INFO: parsed 2 PCI fixup entries + + .text + .globl _start + .type _start, %function +_start: + nop +.L0: + ret + .size _start, .-_start + +## PCI fixup table. + .section .pci_fixup,"a",@progbits + + .short 0x8086 # vendor + .short 0xbeef # device + .long 0xffffffff # class + .long 0x0 # class shift + .long _start - . # fixup + + .short 0x8086 # vendor + .short 0xbad # device + .long 0xffffffff # class + .long 0x0 # class shift + .long .L0 - . # fixup + +## Fake Linux Kernel sections. + .section __ksymtab,"a",@progbits + .section __ksymtab_gpl,"a",@progbits |