[PATCH v2 4/4] x86: enable llvm-cov support

[Wentao Zhang]

Set ARCH_HAS_* options to "y" in kconfig and include section description in
linker script.

Signed-off-by: Wentao Zhang <wenta...@illinois.edu>
Reviewed-by: Chuck Wolber <chuck.wol...@boeing.com>
Tested-by: Chuck Wolber <chuck.wol...@boeing.com>
---
 arch/x86/Kconfig              | 2 ++
 arch/x86/kernel/vmlinux.lds.S | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 007bab9f2..e0a8f7b42 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -85,6 +85,8 @@ config X86
        select ARCH_HAS_FORTIFY_SOURCE
        select ARCH_HAS_GCOV_PROFILE_ALL
        select ARCH_HAS_KCOV                    if X86_64
+       select ARCH_HAS_LLVM_COV                if X86_64
+       select ARCH_HAS_LLVM_COV_PROFILE_ALL    if X86_64
        select ARCH_HAS_KERNEL_FPU_SUPPORT
        select ARCH_HAS_MEM_ENCRYPT
        select ARCH_HAS_MEMBARRIER_SYNC_CORE
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 6e73403e8..904337722 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -191,6 +191,8 @@ SECTIONS
 
        BUG_TABLE
 
+       LLVM_COV_DATA
+
        ORC_UNWIND_TABLE
 
        . = ALIGN(PAGE_SIZE);
-- 
2.45.2