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Commit 5fc0363d authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull x86 build updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Makefile improvements (Paul Bolle)

   - KConfig cleanups to better separate 32-bit only, 64-bit only and
     generic feature enablement sections (Ingo Molnar)"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/build: Remove three unneeded genhdr-y entries
  x86/build: Don't use $(LINUXINCLUDE) twice
  x86/kconfig: Sort the 'config X86' selects alphabetically
  x86/kconfig: Clean up 32-bit compat options
  x86/kconfig: Clean up IA32_EMULATION select
  x86/kconfig, x86/pkeys: Move pkeys selects to X86_INTEL_MEMORY_PROTECTION_KEYS
  x86/kconfig: Move 64-bit only arch Kconfig selects to 'config X86_64'
  x86/kconfig: Move 32-bit only arch Kconfig selects to 'config X86_32'
parents 06cc6b96 9190e217

arch/x86/Kconfig

+41 −27
Original line number Diff line number Diff line
@@ -9,14 +9,37 @@ config 64BIT 
config X86_32

	def_bool y

	depends on !64BIT

	# Options that are inherently 32-bit kernel only:

	select ARCH_WANT_IPC_PARSE_VERSION

	select CLKSRC_I8253

	select CLONE_BACKWARDS

	select HAVE_AOUT

	select HAVE_GENERIC_DMA_COHERENT

	select MODULES_USE_ELF_REL

	select OLD_SIGACTION



config X86_64

	def_bool y

	depends on 64BIT

	# Options that are inherently 64-bit kernel only:

	select ARCH_HAS_GIGANTIC_PAGE

	select ARCH_SUPPORTS_INT128

	select ARCH_USE_CMPXCHG_LOCKREF

	select HAVE_ARCH_SOFT_DIRTY

	select MODULES_USE_ELF_RELA

	select X86_DEV_DMA_OPS



### Arch settings

#

# Arch settings

#

# ( Note that options that are marked 'if X86_64' could in principle be

#   ported to 32-bit as well. )

#

config X86

	def_bool y

	#

	# Note: keep this list sorted alphabetically

	#

	select ACPI_LEGACY_TABLES_LOOKUP	if ACPI

	select ACPI_SYSTEM_POWER_STATES_SUPPORT	if ACPI

	select ANON_INODES
@@ -27,10 +50,9 @@ config X86 
	select ARCH_HAS_ELF_RANDOMIZE

	select ARCH_HAS_FAST_MULTIPLIER

	select ARCH_HAS_GCOV_PROFILE_ALL

	select ARCH_HAS_GIGANTIC_PAGE		if X86_64

	select ARCH_HAS_KCOV			if X86_64

	select ARCH_HAS_PMEM_API		if X86_64

	select ARCH_HAS_MMIO_FLUSH

	select ARCH_HAS_PMEM_API		if X86_64

	select ARCH_HAS_SG_CHAIN

	select ARCH_HAS_UBSAN_SANITIZE_ALL

	select ARCH_HAVE_NMI_SAFE_CMPXCHG
@@ -39,23 +61,17 @@ config X86 
	select ARCH_MIGHT_HAVE_PC_SERIO

	select ARCH_SUPPORTS_ATOMIC_RMW

	select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT

	select ARCH_SUPPORTS_INT128		if X86_64

	select ARCH_SUPPORTS_NUMA_BALANCING	if X86_64

	select ARCH_USE_BUILTIN_BSWAP

	select ARCH_USE_CMPXCHG_LOCKREF		if X86_64

	select ARCH_USE_QUEUED_RWLOCKS

	select ARCH_USE_QUEUED_SPINLOCKS

	select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if SMP

	select ARCH_WANTS_DYNAMIC_TASK_STRUCT

	select ARCH_WANT_FRAME_POINTERS

	select ARCH_WANT_IPC_PARSE_VERSION	if X86_32

	select ARCH_WANTS_DYNAMIC_TASK_STRUCT

	select BUILDTIME_EXTABLE_SORT

	select CLKEVT_I8253

	select CLKSRC_I8253			if X86_32

	select CLOCKSOURCE_VALIDATE_LAST_CYCLE

	select CLOCKSOURCE_WATCHDOG

	select CLONE_BACKWARDS			if X86_32

	select COMPAT_OLD_SIGACTION		if IA32_EMULATION

	select DCACHE_WORD_ACCESS

	select EDAC_ATOMIC_SCRUB

	select EDAC_SUPPORT
@@ -77,7 +93,6 @@ config X86 
	select HAVE_ACPI_APEI			if ACPI

	select HAVE_ACPI_APEI_NMI		if ACPI

	select HAVE_ALIGNED_STRUCT_PAGE		if SLUB

	select HAVE_AOUT			if X86_32

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_ARCH_HARDENED_USERCOPY

	select HAVE_ARCH_HUGE_VMAP		if X86_64 || X86_PAE
@@ -88,12 +103,10 @@ config X86 
	select HAVE_ARCH_MMAP_RND_BITS		if MMU

	select HAVE_ARCH_MMAP_RND_COMPAT_BITS	if MMU && COMPAT

	select HAVE_ARCH_SECCOMP_FILTER

	select HAVE_ARCH_SOFT_DIRTY		if X86_64

	select HAVE_ARCH_TRACEHOOK

	select HAVE_ARCH_TRANSPARENT_HUGEPAGE

	select HAVE_ARCH_WITHIN_STACK_FRAMES

	select HAVE_EBPF_JIT			if X86_64

	select HAVE_ARCH_VMAP_STACK		if X86_64

	select HAVE_ARCH_WITHIN_STACK_FRAMES

	select HAVE_CC_STACKPROTECTOR

	select HAVE_CMPXCHG_DOUBLE

	select HAVE_CMPXCHG_LOCAL
@@ -106,6 +119,7 @@ config X86 
	select HAVE_DMA_CONTIGUOUS

	select HAVE_DYNAMIC_FTRACE

	select HAVE_DYNAMIC_FTRACE_WITH_REGS

	select HAVE_EBPF_JIT			if X86_64

	select HAVE_EFFICIENT_UNALIGNED_ACCESS

	select HAVE_EXIT_THREAD

	select HAVE_FENTRY			if X86_64
@@ -113,7 +127,6 @@ config X86 
	select HAVE_FUNCTION_GRAPH_TRACER

	select HAVE_FUNCTION_TRACER

	select HAVE_GCC_PLUGINS

	select HAVE_GENERIC_DMA_COHERENT	if X86_32

	select HAVE_HW_BREAKPOINT

	select HAVE_IDE

	select HAVE_IOREMAP_PROT
@@ -142,15 +155,11 @@ config X86 
	select HAVE_PERF_REGS

	select HAVE_PERF_USER_STACK_DUMP

	select HAVE_REGS_AND_STACK_ACCESS_API

	select HAVE_STACK_VALIDATION		if X86_64

	select HAVE_SYSCALL_TRACEPOINTS

	select HAVE_UID16			if X86_32 || IA32_EMULATION

	select HAVE_UNSTABLE_SCHED_CLOCK

	select HAVE_USER_RETURN_NOTIFIER

	select IRQ_FORCED_THREADING

	select MODULES_USE_ELF_RELA		if X86_64

	select MODULES_USE_ELF_REL		if X86_32

	select OLD_SIGACTION			if X86_32

	select OLD_SIGSUSPEND3			if X86_32 || IA32_EMULATION

	select PERF_EVENTS

	select RTC_LIB

	select RTC_MC146818_LIB
@@ -160,11 +169,7 @@ config X86 
	select THREAD_INFO_IN_TASK

	select USER_STACKTRACE_SUPPORT

	select VIRT_TO_BUS

	select X86_DEV_DMA_OPS			if X86_64

	select X86_FEATURE_NAMES		if PROC_FS

	select HAVE_STACK_VALIDATION		if X86_64

	select ARCH_USES_HIGH_VMA_FLAGS		if X86_INTEL_MEMORY_PROTECTION_KEYS

	select ARCH_HAS_PKEYS			if X86_INTEL_MEMORY_PROTECTION_KEYS



config INSTRUCTION_DECODER

	def_bool y
@@ -1758,6 +1763,8 @@ config X86_INTEL_MEMORY_PROTECTION_KEYS 
	def_bool y

	# Note: only available in 64-bit mode

	depends on CPU_SUP_INTEL && X86_64

	select ARCH_USES_HIGH_VMA_FLAGS

	select ARCH_HAS_PKEYS

	---help---

	  Memory Protection Keys provides a mechanism for enforcing

	  page-based protections, but without requiring modification of the
@@ -2113,7 +2120,7 @@ config DEBUG_HOTPLUG_CPU0 
config COMPAT_VDSO

	def_bool n

	prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"

	depends on X86_32 || IA32_EMULATION

	depends on COMPAT_32

	---help---

	  Certain buggy versions of glibc will crash if they are

	  presented with a 32-bit vDSO that is not mapped at the address
@@ -2715,9 +2722,10 @@ source "fs/Kconfig.binfmt" 
config IA32_EMULATION

	bool "IA32 Emulation"

	depends on X86_64

	select ARCH_WANT_OLD_COMPAT_IPC

	select BINFMT_ELF

	select COMPAT_BINFMT_ELF

	select ARCH_WANT_OLD_COMPAT_IPC

	select COMPAT_OLD_SIGACTION

	---help---

	  Include code to run legacy 32-bit programs under a

	  64-bit kernel. You should likely turn this on, unless you're
@@ -2742,6 +2750,12 @@ config X86_X32 
	  elf32_x86_64 support enabled to compile a kernel with this

	  option set.



config COMPAT_32

	def_bool y

	depends on IA32_EMULATION || X86_32

	select HAVE_UID16

	select OLD_SIGSUSPEND3



config COMPAT

	def_bool y

	depends on IA32_EMULATION || X86_X32

arch/x86/include/asm/Kbuild

+0 −4
Original line number Diff line number Diff line
@@ -6,10 +6,6 @@ generated-y += unistd_32_ia32.h 
generated-y += unistd_64_x32.h

generated-y += xen-hypercalls.h



genhdr-y += unistd_32.h

genhdr-y += unistd_64.h

genhdr-y += unistd_x32.h



generic-y += clkdev.h

generic-y += cputime.h

generic-y += dma-contiguous.h

arch/x86/realmode/rm/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -69,7 +69,7 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE 


# ---------------------------------------------------------------------------



KBUILD_CFLAGS	:= $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \

KBUILD_CFLAGS	:= $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \

		   -I$(srctree)/arch/x86/boot

KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__

GCOV_PROFILE := n