Commit 968f5d5e authored by Ray Kinsella's avatar Ray Kinsella Committed by Thomas Petazzoni
Browse files

arch/x86: add support for Intel X1000 



The Intel X1000 is the Pentium class microprocessor that ships with
Galileo Gen 1/2. This patch adds changes to arch and toolchain-wrapper
to omit the lock prefix for the X1000.

[Thomas: tweak commit log and Config.in help text.]

Signed-off-by: default avatarRay Kinsella <ray.kinsella@intel.com>
Reviewed-by: default avatarArnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 29551707

arch/Config.in.x86

+12 −0
Original line number Diff line number Diff line
@@ -34,6 +34,16 @@ config BR2_x86_i486 
config BR2_x86_i586

	bool "i586"

	depends on !BR2_x86_64

config BR2_x86_x1000

	bool "x1000"

	depends on !BR2_x86_64

	help

	  The Intel X1000 is a Pentium class microprocessor in the

	  Quark (sub-Atom) Product Line. The X1000 has a bug on the

	  lock prefix requiring that prefix must be stripped at build

	  time.



	  See https://en.wikipedia.org/wiki/Intel_Quark.

config BR2_x86_i686

	bool "i686"

	depends on !BR2_x86_64
@@ -202,6 +212,7 @@ config BR2_ARCH 
	default "i386"		if BR2_x86_i386

	default "i486"		if BR2_x86_i486

	default "i586"		if BR2_x86_i586

	default "i586"		if BR2_x86_x1000

	default "i586"		if BR2_x86_pentium_mmx

	default "i586"		if BR2_x86_geode

	default "i586"		if BR2_x86_c3
@@ -240,6 +251,7 @@ config BR2_GCC_TARGET_ARCH 
	default "i386"		if BR2_x86_i386

	default "i486"		if BR2_x86_i486

	default "i586"		if BR2_x86_i586

	default "i586"		if BR2_x86_x1000

	default "pentium-mmx"	if BR2_x86_pentium_mmx

	default "i686"		if BR2_x86_i686

	default "pentiumpro"	if BR2_x86_pentiumpro

toolchain/toolchain-wrapper.c

+3 −0
Original line number Diff line number Diff line
@@ -63,6 +63,9 @@ static char *predef_args[] = { 
#ifdef BR_64

	"-m64",

#endif

#ifdef BR_OMIT_LOCK_PREFIX

	"-Wa,-momit-lock-prefix=yes",

#endif

#ifdef BR_BINFMT_FLAT

	"-Wl,-elf2flt",

#endif

toolchain/toolchain-wrapper.mk

+4 −0
Original line number Diff line number Diff line
@@ -20,6 +20,10 @@ ifeq ($(BR2_CCACHE),y) 
TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE

endif



ifeq ($(BR2_x86_x1000),y)

TOOLCHAIN_WRAPPER_ARGS += -DBR_OMIT_LOCK_PREFIX

endif



ifeq ($(BR2_CCACHE_USE_BASEDIR),y)

TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE_BASEDIR='"$(BASE_DIR)"'

endif