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authorPeter Korsgaard <jacmet@sunsite.dk>2009-11-09 13:53:04 (GMT)
committer Peter Korsgaard <jacmet@sunsite.dk>2009-11-09 13:53:04 (GMT)
commit13e753b414b4530a610873d44927b320223dc6ba (patch)
tree922f92e9d666a4e27364b7d527b99a226716d5f4
parent5e5f3209f0edcb5ec1e6a1b031331e1828d54eed (diff)
downloadbuildroot-13e753b414b4530a610873d44927b320223dc6ba.tar.gz
buildroot-13e753b414b4530a610873d44927b320223dc6ba.tar.bz2
toolchain: select sensible floating point mode by default
Introduce BR2_PREFER_SOFT_FLOAT and enable it for arm, avr32 and mips, and use it to enable soft float support by default for those archs. This way people automatically get the correct floating point mode when running make menuconfig for the first time (E.G. without a .config) and changing the arch from i386 to arm/avr32/mips. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
-rw-r--r--toolchain/Config.in.27
1 files changed, 5 insertions, 2 deletions
diff --git a/toolchain/Config.in.2 b/toolchain/Config.in.2
index 2da5670..2f7de75 100644
--- a/toolchain/Config.in.2
+++ b/toolchain/Config.in.2
@@ -74,17 +74,20 @@ config BR2_USE_WCHAR
If you have an external binary toolchain that has been built
with WCHAR support then enable this option.
+config BR2_PREFER_SOFT_FLOAT
+ bool
+ default y if BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_nios2
+
config BR2_SOFT_FLOAT
bool "Use software floating point by default"
depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_powerpc || BR2_nios2
+ default $(BR2_PREFER_SOFT_FLOAT)
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
functions, then everything will need to be compiled with soft
floating point support (-msoft-float).
- Most people will answer N.
-
config BR2_USE_SSP
bool "Enable stack protection support"
help