Xiang1 Zhang bcc0c894f3 Add cet.h for writing CET-enabled assembly code
Summary:
Add x86 feature with IBT and/or SHSTK bits to ELF program property if they  are enabled. Otherwise, contents in this header file are unused.
This file is mainly design for assembly source code which want to enable CET

Reviewers: hjl.tools, annita.zhang, LuoYuanke, craig.topper, tstellar, pengfei, rsmith

Reviewed By: LuoYuanke

Subscribers: cfe-commits, mgorny

Tags: #clang

Differential Revision: https://reviews.llvm.org/D79617
2020-05-19 14:03:17 +08:00

28 lines
1.2 KiB
ArmAsm

// REQUIRES: x86-registered-target
// RUN: %clang --target=x86_64-pc-linux -fcf-protection -include cet.h -c %s -o - | llvm-readelf -n | FileCheck %s
// RUN: %clang --target=x86_64-pc-linux -include cet.h -c %s -o - | llvm-readelf -S | FileCheck %s --check-prefixes=NOCET
// RUN: %clang --target=x86_64-pc-linux -include cet.h -S %s -o - | FileCheck %s --check-prefixes=NOENDBR
// RUN: %clang --target=x86_64-pc-linux -fcf-protection -include cet.h -S %s -o - | FileCheck %s --check-prefixes=ENDBR64
// RUN: %clang --target=i386-pc-linux -fcf-protection -include cet.h -c %s -o - | llvm-readelf -n | FileCheck %s
// RUN: %clang --target=i386-pc-linux -include cet.h -c %s -o - | llvm-readelf -S | FileCheck %s --check-prefixes=NOCET
// RUN: %clang --target=i386-pc-linux -include cet.h -S %s -o - | FileCheck %s --check-prefixes=NOENDBR
// RUN: %clang --target=i386-pc-linux -fcf-protection -include cet.h -S %s -o - | FileCheck %s --check-prefixes=ENDBR32
// CHECK: IBT, SHSTK
// NOCET: Section Headers
// NOCET-NOT: .note.gnu.property
// NOENDBR: foo
// NOENDBR-NOT: endbr
// ENDBR64: endbr64
// ENDBR32: endbr32
.text
.globl foo
.type foo, @function
foo:
_CET_ENDBR
ret