bool "Toolchain Options" if DEVEL
depends !NATIVE_TOOLCHAIN
+menuconfig EXTRA_TARGET_ARCH
+ bool
+ prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
+ default n
+ help
+ Some builds may require a 'biarch' toolchain. This option
+ allows you to specify an additional target arch.
+
+ Most people will answer N here.
+
+ config EXTRA_TARGET_ARCH_NAME
+ string
+ prompt "Extra architecture name" if EXTRA_TARGET_ARCH
+ help
+ Specify the cpu name (eg powerpc64 or x86_64) of the
+ additional target architecture.
+
+ config EXTRA_TARGET_ARCH_OPTS
+ string
+ prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
+ help
+ If you're specifying an addition target architecture,
+ you'll probably need to also provide options to make
+ the compiler use this alternate arch.
+
+ For example, if you're building a compiler that can build
+ both powerpc and powerpc64 binaries, you'll need to
+ specify -m64 here.
+
source "toolchain/binutils/Config.in"
source "toolchain/gcc/Config.in"
source "toolchain/uClibc/Config.in"
bool
prompt "Use software floating point by default" if TOOLCHAINOPTS
default y
- depends on arm || armeb || powerpc
+ depends on (arm || armeb || powerpc) && !HAS_FPU
help
If your target CPU does not have a Floating Point Unit (FPU) or a
kernel FPU emulator, but you still wish to support floating point
default "-O2 -pipe -march=i486 -funit-at-a-time" if TARGET_x86
default "-Os -pipe -march=i486 -funit-at-a-time" if TARGET_rdc
default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" if mipsel || mips
- default "-Os -pipe -march=armv5te -mtune=xscale -funit-at-a-time" if armeb || arm
+ default "-Os -pipe -march=armv5te -mtune=xscale -funit-at-a-time" if TARGET_ixp4xx || TARGET_iop32x || TARGET_pxa || TARGET_orion
+ default "-Os -pipe -march=armv4t -mtune=arm9tdmi -funit-at-a-time" if TARGET_storm
default "-Os -pipe -funit-at-a-time"
help
Optimizations to use when building for the target host.