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* [PATCH V2 1/3] kernel.bbclass, module-base.bbclass: Use CC to form KERNEL_CC
@ 2012-09-12  5:59 Khem Raj
  2012-09-12  5:59 ` [PATCH 2/3] runqemu: Explicitly specify MACHINE when calling bitbake Khem Raj
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Khem Raj @ 2012-09-12  5:59 UTC (permalink / raw)
  To: openembedded-core

kernel compiler is not special and we currently have it so
we want to pass -march and -mtune options as CFLAGS to kernel
build so that compiler picks the right subarch flags when
compiling assembly files in particular. Otherwise defaults
are chosen which may not be right in many case e.g. when
compiling kernel for collie machine we should use arch=armv4
but it uses toolchain/as defaults which is armv5te

in some case e.g. thumb1 we know that kernel can not be compiled
in thumb1 mode so we can provide that information e.g. -marm
option through KERNEL_HOST_CC_ARCH variable as we do now

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 meta/classes/kernel-arch.bbclass |   13 +++++++++++++
 meta/classes/kernel.bbclass      |   16 +---------------
 meta/classes/module-base.bbclass |   16 ----------------
 3 files changed, 14 insertions(+), 31 deletions(-)

diff --git a/meta/classes/kernel-arch.bbclass b/meta/classes/kernel-arch.bbclass
index 6446504..95a40f2 100644
--- a/meta/classes/kernel-arch.bbclass
+++ b/meta/classes/kernel-arch.bbclass
@@ -42,3 +42,16 @@ def map_uboot_arch(a, d):
 
 export UBOOT_ARCH = "${@map_uboot_arch(d.getVar('ARCH', True), d)}"
 
+# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
+# specific options necessary for building the kernel and modules.
+TARGET_CC_KERNEL_ARCH ?= ""
+HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
+TARGET_LD_KERNEL_ARCH ?= ""
+HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
+TARGET_AR_KERNEL_ARCH ?= ""
+HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
+
+KERNEL_CC = "${CC} ${HOST_CC_KERNEL_ARCH}"
+KERNEL_LD = "${LD} ${HOST_LD_KERNEL_ARCH}"
+KERNEL_AR = "${AR} ${HOST_AR_KERNEL_ARCH}"
+
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index fdef1be..bcb6bd5 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -1,7 +1,7 @@
 inherit linux-kernel-base module_strip
 
 PROVIDES += "virtual/kernel"
-DEPENDS += "virtual/${TARGET_PREFIX}gcc kmod-native virtual/${TARGET_PREFIX}gcc${KERNEL_CCSUFFIX} update-modules"
+DEPENDS += "virtual/${TARGET_PREFIX}gcc kmod-native update-modules"
 
 # we include gcc above, we dont need virtual/libc
 INHIBIT_DEFAULT_DEPS = "1"
@@ -37,20 +37,6 @@ KERNEL_PRIORITY ?= "${@int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.
 
 KERNEL_RELEASE ?= "${KERNEL_VERSION}"
 
-KERNEL_CCSUFFIX ?= ""
-KERNEL_LDSUFFIX ?= ""
-
-# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
-# specific options necessary for building the kernel and modules.
-#FIXME: should be this: TARGET_CC_KERNEL_ARCH ?= "${TARGET_CC_ARCH}"
-TARGET_CC_KERNEL_ARCH ?= ""
-HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
-TARGET_LD_KERNEL_ARCH ?= ""
-HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
-
-KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc${KERNEL_CCSUFFIX} ${HOST_CC_KERNEL_ARCH}${TOOLCHAIN_OPTIONS}"
-KERNEL_LD = "${HOST_PREFIX}ld${KERNEL_LDSUFFIX} ${HOST_LD_KERNEL_ARCH}${TOOLCHAIN_OPTIONS}"
-
 # Where built kernel lies in the kernel tree
 KERNEL_OUTPUT ?= "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}"
 KERNEL_IMAGEDEST = "boot"
diff --git a/meta/classes/module-base.bbclass b/meta/classes/module-base.bbclass
index 9379bf8..f4ec2d4 100644
--- a/meta/classes/module-base.bbclass
+++ b/meta/classes/module-base.bbclass
@@ -7,22 +7,6 @@ export CROSS_COMPILE = "${TARGET_PREFIX}"
 
 export KERNEL_VERSION = "${@base_read_file('${STAGING_KERNEL_DIR}/kernel-abiversion')}"
 KERNEL_OBJECT_SUFFIX = ".ko"
-KERNEL_CCSUFFIX = "${@base_read_file('${STAGING_KERNEL_DIR}/kernel-ccsuffix')}"
-KERNEL_LDSUFFIX = "${@base_read_file('${STAGING_KERNEL_DIR}/kernel-ldsuffix')}"
-KERNEL_ARSUFFIX = "${@base_read_file('${STAGING_KERNEL_DIR}/kernel-arsuffix')}"
-
-# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
-# specific options necessary for building the kernel and modules.
-TARGET_CC_KERNEL_ARCH ?= ""
-HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
-TARGET_LD_KERNEL_ARCH ?= ""
-HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
-TARGET_AR_KERNEL_ARCH ?= ""
-HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
-
-KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc${KERNEL_CCSUFFIX} ${HOST_CC_KERNEL_ARCH}"
-KERNEL_LD = "${HOST_PREFIX}ld${KERNEL_LDSUFFIX} ${HOST_LD_KERNEL_ARCH}"
-KERNEL_AR = "${HOST_PREFIX}ar${KERNEL_ARSUFFIX} ${HOST_AR_KERNEL_ARCH}"
 
 # kernel modules are generally machine specific
 PACKAGE_ARCH = "${MACHINE_ARCH}"
-- 
1.7.9.5




^ permalink raw reply related	[flat|nested] 10+ messages in thread
end of thread, other threads:[~2012-09-14 15:55 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-09-12  5:59 [PATCH V2 1/3] kernel.bbclass, module-base.bbclass: Use CC to form KERNEL_CC Khem Raj
2012-09-12  5:59 ` [PATCH 2/3] runqemu: Explicitly specify MACHINE when calling bitbake Khem Raj
2012-09-12 22:12   ` Scott Garman
2012-09-14 15:42   ` Saul Wold
2012-09-12  5:59 ` [PATCH 3/3] uclibc: Revert systemd regressing patch from upsteam uclibc Khem Raj
2012-09-12  6:37   ` Phil Blundell
2012-09-12  7:53     ` Khem Raj
2012-09-12  6:32 ` [PATCH V2 1/3] kernel.bbclass, module-base.bbclass: Use CC to form KERNEL_CC Phil Blundell
2012-09-12  7:49   ` Khem Raj
2012-09-13 18:02     ` Koen Kooi

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