[tip: x86/merge] x86/vdso/kbuild: Group non-standard build attributes and primary object file rules together

From: tip-bot2 for Ingo Molnar
Date: Thu Feb 22 2024 - 05:18:07 EST


The following commit has been merged into the x86/merge branch of tip:

Commit-ID: b7bcffe752957c6eac7c4cd77dd6f5d943478769
Gitweb: https://git.kernel.org/tip/b7bcffe752957c6eac7c4cd77dd6f5d943478769
Author: Ingo Molnar <mingo@xxxxxxxxxx>
AuthorDate: Thu, 22 Feb 2024 10:20:58 +01:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Thu, 22 Feb 2024 10:40:20 +01:00

x86/vdso/kbuild: Group non-standard build attributes and primary object file rules together

The fresh changes to the vDSO Makefile in:

289d0a475c3e ("x86/vdso: Use CONFIG_COMPAT_32 to specify vdso32")
329b77b59f83 ("x86/vdso: Simplify obj-y addition")

Conflicted with a pending change in:

b388e57d4628e ("x86/vdso: Fix rethunk patching for vdso-image-{32,64}.o")

Which was resolved in a simple fasion in this merge commit:

f14df823a61e ("Merge branch 'x86/vdso' into x86/core, to resolve conflict and to prepare for dependent changes")

.. but all these changes make me look and notice a bit of historic baggage
left in the Makefile:

- Disordered build rules where non-standard build attributes relating to
were placed sometimes several lines after - and sometimes *before*
the .o build rules of the object files... Functional but inconsistent.

- Inconsistent vertical spacing, stray whitespaces, inconsistent spelling
of 'vDSO' over the years, a few spelling mistakes and inconsistent
capitalization of comment blocks.

Tidy it all up. No functional changes intended.

Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Cc: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/entry/vdso/Makefile | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 3ccab61..620f625 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -3,7 +3,7 @@
# Building vDSO images for x86.
#

-# Include the generic Makefile to check the built vdso.
+# Include the generic Makefile to check the built vDSO:
include $(srctree)/lib/vdso/Makefile

# Sanitizer runtimes are unavailable and cannot be linked here.
@@ -18,29 +18,29 @@ OBJECT_FILES_NON_STANDARD := y
# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
KCOV_INSTRUMENT := n

-# files to link into the vdso
+# Files to link into the vDSO:
vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o
vobjs32-y := vdso32/note.o vdso32/system_call.o vdso32/sigreturn.o
vobjs32-y += vdso32/vclock_gettime.o vdso32/vgetcpu.o
vobjs-$(CONFIG_X86_SGX) += vsgx.o

-# files to link into kernel
-obj-y += vma.o extable.o
-KASAN_SANITIZE_vma.o := y
-UBSAN_SANITIZE_vma.o := y
-KCSAN_SANITIZE_vma.o := y
+# Files to link into the kernel:
+obj-y += vma.o extable.o
+KASAN_SANITIZE_vma.o := y
+UBSAN_SANITIZE_vma.o := y
+KCSAN_SANITIZE_vma.o := y

-OBJECT_FILES_NON_STANDARD_extable.o := n
-OBJECT_FILES_NON_STANDARD_vdso-image-32.o := n
-OBJECT_FILES_NON_STANDARD_vdso-image-64.o := n
OBJECT_FILES_NON_STANDARD_vma.o := n
+OBJECT_FILES_NON_STANDARD_extable.o := n

-# vDSO images to build
-obj-$(CONFIG_X86_64) += vdso-image-64.o
-obj-$(CONFIG_X86_X32_ABI) += vdso-image-x32.o
-obj-$(CONFIG_COMPAT_32) += vdso-image-32.o vdso32-setup.o
+# vDSO images to build:
+obj-$(CONFIG_X86_64) += vdso-image-64.o
+obj-$(CONFIG_X86_X32_ABI) += vdso-image-x32.o
+obj-$(CONFIG_COMPAT_32) += vdso-image-32.o vdso32-setup.o

-OBJECT_FILES_NON_STANDARD_vdso32-setup.o := n
+OBJECT_FILES_NON_STANDARD_vdso-image-32.o := n
+OBJECT_FILES_NON_STANDARD_vdso-image-64.o := n
+OBJECT_FILES_NON_STANDARD_vdso32-setup.o := n

vobjs := $(addprefix $(obj)/, $(vobjs-y))
vobjs32 := $(addprefix $(obj)/, $(vobjs32-y))