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Hello,
it sometimes happens that I need to build toolchains for several variants
of a CPU and I want to have the variant name in the arch tuple. In fact,
this is very similar to what is done with i386/i486/i586/i686, all of them
being variants of the x86 arch family.
On arm, we commonly see armv5/armv6/armv7 and with v7 there are two common
cpus which are cortex a8 and a9.
So I'm used to build my toolchains with a prefix which is 'armv5te',
'armv7a8', 'armv7a9' etc...
For this I wrote the small patch below for ct-ng-1.15.3, which still works
with 1.17.0.
On one of my machines, the toolchain directory looks like this, which is
quite convenient to use :
arm-gcc43_glibc29-linux-gnueabi/
arm-gcc44_glibc29-linux-gnueabi/
arm-gcc45_glibc29-linux-gnueabi/
armv7a8-gcc43_glibc29-linux-gnueabi/
armv7a9-gcc44_glibc29-linux-gnueabi/
armv7a9-gcc47_glibc29-linux-gnueabi/
armv7a9-gcc47_glibc29-linux-gnueabihf/
i386-gcc34_glibc23-linux-gnu/
x86_64-gcc34_glibc23-linux-gnu/
Hoping someone finds the patch useful.
Please keep me CC of any response as I'm not subscribed to the list.
Regards,
Willy
---
diff -urN ./config/target.in ./config/target.in
--- ./config/target.in.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./config/target.in 2012-07-27 12:02:08.682588639 +0200
@@ -5,6 +5,17 @@
config ARCH
string
+config ARCH_OVERRIDE
+ string
+ prompt "Arch name to use in the resulting tuple instead of ${CT_ARCH}"
+ help
+ Some architectures have multiple variants and being able to specify
+ the variant instead of the arch is quite convenient. This is commonly
+ seen for instance when "armv5tel-" is used as a prefix instead of the
+ more generic "arm-", or with "alphaev6-" instead of "alpha-".
+
+ If you're not sure about what this is, leave it blank.
+
# Pre-declare target optimisation variables
config ARCH_SUPPORTS_BOTH_MMU
config ARCH_SUPPORTS_BOTH_ENDIAN
diff -urN ./scripts/build/arch/alpha.sh ./scripts/build/arch/alpha.sh
--- ./scripts/build/arch/alpha.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/alpha.sh 2012-07-27 11:58:57.190090149 +0200
@@ -2,5 +2,5 @@
CT_DoArchTupleValues () {
# The architecture part of the tuple:
- CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_ALPHA_VARIANT}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH}${CT_ARCH_ALPHA_VARIANT}}"
}
diff -urN ./scripts/build/arch/arm.sh ./scripts/build/arch/arm.sh
--- ./scripts/build/arch/arm.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/arm.sh 2012-07-27 11:58:50.607102794 +0200
@@ -2,7 +2,7 @@
CT_DoArchTupleValues() {
# The architecture part of the tuple:
- CT_TARGET_ARCH="${CT_ARCH}${target_endian_eb}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH}${target_endian_eb}}"
# The system part of the tuple:
case "${CT_LIBC},${CT_ARCH_ARM_EABI}" in
diff -urN ./scripts/build/arch/avr32.sh ./scripts/build/arch/avr32.sh
--- ./scripts/build/arch/avr32.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/avr32.sh 2012-07-27 11:58:04.299089005 +0200
@@ -2,7 +2,7 @@
CT_DoArchTupleValues() {
# The architecture part of the tuple:
- CT_TARGET_ARCH="${CT_ARCH}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH}}"
# gcc ./configure flags
CT_ARCH_WITH_ARCH=
diff -urN ./scripts/build/arch/blackfin.sh ./scripts/build/arch/blackfin.sh
--- ./scripts/build/arch/blackfin.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/blackfin.sh 2012-07-27 11:58:12.670588818 +0200
@@ -2,7 +2,7 @@
CT_DoArchTupleValues() {
# The architecture part of the tuple:
- CT_TARGET_ARCH="bfin"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-bfin}"
# gcc ./configure flags
CT_ARCH_WITH_ARCH=
diff -urN ./scripts/build/arch/mips.sh ./scripts/build/arch/mips.sh
--- ./scripts/build/arch/mips.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/mips.sh 2012-07-27 11:58:40.919091367 +0200
@@ -3,10 +3,10 @@
CT_DoArchTupleValues() {
# The architecture part of the tuple, override only for 64-bit
if [ "${CT_ARCH_64}" = "y" ]; then
- CT_TARGET_ARCH="mips64${target_endian_el}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-mips64${target_endian_el}}"
else
# The architecture part of the tuple:
- CT_TARGET_ARCH="${CT_ARCH}${target_endian_el}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH}${target_endian_el}}"
fi
# Override CFLAGS for endianness:
diff -urN ./scripts/build/arch/powerpc.sh ./scripts/build/arch/powerpc.sh
--- ./scripts/build/arch/powerpc.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/powerpc.sh 2012-07-27 11:59:15.611087634 +0200
@@ -3,7 +3,7 @@
CT_DoArchTupleValues () {
# The architecture part of the tuple, override only for 64-bit
if [ "${CT_ARCH_64}" = "y" ]; then
- CT_TARGET_ARCH="powerpc64"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-powerpc64}"
fi
# Only override values when ABI is not the default
diff -urN ./scripts/build/arch/s390.sh ./scripts/build/arch/s390.sh
--- ./scripts/build/arch/s390.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/s390.sh 2012-07-27 11:59:22.603588053 +0200
@@ -3,6 +3,6 @@
CT_DoArchTupleValues() {
# That's the only thing to override
if [ "${CT_ARCH_64}" = "y" ]; then
- CT_TARGET_ARCH="s390x"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-s390x}"
fi
}
diff -urN ./scripts/build/arch/sh.sh ./scripts/build/arch/sh.sh
--- ./scripts/build/arch/sh.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/sh.sh 2012-07-27 11:59:32.815087642 +0200
@@ -2,7 +2,7 @@
CT_DoArchTupleValues () {
# The architecture part of the tuple:
- CT_TARGET_ARCH="${CT_ARCH_SH_VARIANT}${target_endian_eb}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH_SH_VARIANT}${target_endian_eb}}"
# gcc ./configure flags
CT_ARCH_WITH_ARCH=
diff -urN ./scripts/build/arch/sparc.sh ./scripts/build/arch/sparc.sh
--- ./scripts/build/arch/sparc.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/sparc.sh 2012-07-27 11:59:39.655111756 +0200
@@ -2,7 +2,7 @@
CT_DoArchTupleValues() {
# That's the only thing to override
if [ "${CT_ARCH_64}" = "y" ]; then
- CT_TARGET_ARCH="${CT_ARCH}64"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH}64}"
fi
}
diff -urN ./scripts/build/arch/x86.sh ./scripts/build/arch/x86.sh
--- ./scripts/build/arch/x86.sh.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/build/arch/x86.sh 2012-07-27 12:00:52.942587401 +0200
@@ -6,18 +6,18 @@
# Override the architecture part of the tuple:
if [ "${CT_ARCH_64}" = "y" ]; then
- CT_TARGET_ARCH=x86_64
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-x86_64}"
else
arch="${CT_ARCH_ARCH}"
[ -z "${arch}" ] && arch="${CT_ARCH_TUNE}"
case "${arch}" in
- "") CT_TARGET_ARCH=i386;;
- i386|i486|i586|i686) CT_TARGET_ARCH="${arch}";;
- winchip*) CT_TARGET_ARCH=i486;;
- pentium|pentium-mmx|c3*) CT_TARGET_ARCH=i586;;
- pentiumpro|pentium*|athlon*) CT_TARGET_ARCH=i686;;
- prescott) CT_TARGET_ARCH=i686;;
- *) CT_TARGET_ARCH=i586;;
+ "") CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-i386}";;
+ i386|i486|i586|i686) CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${arch}}";;
+ winchip*) CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-i486}";;
+ pentium|pentium-mmx|c3*) CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-i586}";;
+ pentiumpro|pentium*|athlon*) CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-i686}";;
+ prescott) CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-i686}";;
+ *) CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-i586}";;
esac
fi
}
diff -urN ./scripts/functions ./scripts/functions
--- ./scripts/functions.orig 2012-07-17 22:39:55.000000000 +0200
+++ ./scripts/functions 2012-07-27 11:57:19.903088370 +0200
@@ -982,7 +982,7 @@
esac
# Build the default architecture tuple part
- CT_TARGET_ARCH="${CT_ARCH}"
+ CT_TARGET_ARCH="${CT_ARCH_OVERRIDE:-${CT_ARCH}}"
# Set defaults for the system part of the tuple. Can be overriden
# by architecture-specific values.
--
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