[PATCH 1/1] kconfig: add CPU endian selection beconfig and leconfig
Scott Branden
sbranden at broadcom.com
Thu Nov 26 11:59:55 PST 2015
Add support for switching defconfig between big and little endian CPU.
Various CPU types have ability to select big and little endian
CPU in the kernel configuration.
"make beconfig" will set CONFIG_CPU_BIG_ENDIAN
"make leconfig" will unset CONFIG_CPU_BIG_ENDIAN
Signed-off-by: Scott Branden <sbranden at broadcom.com>
---
kernel/configs/be.config | 1 +
kernel/configs/le.config | 1 +
scripts/kconfig/Makefile | 10 ++++++++++
3 files changed, 12 insertions(+)
create mode 100644 kernel/configs/be.config
create mode 100644 kernel/configs/le.config
diff --git a/kernel/configs/be.config b/kernel/configs/be.config
new file mode 100644
index 0000000..c5cdc99
--- /dev/null
+++ b/kernel/configs/be.config
@@ -0,0 +1 @@
+CONFIG_CPU_BIG_ENDIAN=y
diff --git a/kernel/configs/le.config b/kernel/configs/le.config
new file mode 100644
index 0000000..be479cf
--- /dev/null
+++ b/kernel/configs/le.config
@@ -0,0 +1 @@
+# CONFIG_CPU_BIG_ENDIAN is not set
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index d79cba4..2e8007e 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -126,6 +126,14 @@ PHONY += tinyconfig
tinyconfig:
$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
+PHONY += beconfig
+beconfig: be.config
+ @:
+
+PHONY += leconfig
+leconfig: le.config
+ @:
+
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@@ -151,6 +159,8 @@ help:
@echo ' kvmconfig - Enable additional options for kvm guest kernel support'
@echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
@echo ' tinyconfig - Configure the tiniest possible kernel'
+ @echo ' beconfig - Update current config to use big endian CPU'
+ @echo ' leconfig - Update current config to use little endian CPU'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
--
2.5.0
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