diff options
| author | Ulf Samuelsson <ulf.samuelsson@atmel.com> | 2009-01-18 10:51:53 +0000 |
|---|---|---|
| committer | Ulf Samuelsson <ulf.samuelsson@atmel.com> | 2009-01-18 10:51:53 +0000 |
| commit | 6da70de5034ae3933c6d072378a8860078686200 (patch) | |
| tree | 13db89b68591f78d408d5af49a0e88f0cba94f22 /toolchain | |
| parent | c86f23b7708cb7eeba91a2764210277c78143dca (diff) | |
The liboil Makefile will use "-mcpu=vfp" when building for ARM.
The VFP is only available for a few ARM CPUs at the moment,
so this breaks the liboil build.
A patch is available upstream which only enables "-mfpu=vfp"
if "--enable-vfp" is given to "configure".
Autotools needs to be run for liboil for this to take effect.
A new configuration BR2_VFP_FLOAT is added to allow enabling vfp.
If this is "yes", then "-mfpu=vfp" is added to CFLAGS.
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/Config.in.2 | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/toolchain/Config.in.2 b/toolchain/Config.in.2 index b8c151506..9fbe60c14 100644 --- a/toolchain/Config.in.2 +++ b/toolchain/Config.in.2 @@ -42,8 +42,17 @@ config BR2_SOFT_FLOAT Most people will answer N. -#config BR2_SOFT_FLOAT_FP -# bool "Use softfp" +config BR2_VFP_FLOAT + bool "Use ARM Vector Floating Point unit" + depends on !BR2_SOFT_FLOAT + depends on BR2_arm || BR2_armeb + help + Setting this option will enable the "-mfpu=vfp" option. + If your ARM CPU has a Vector Floating Point Unit (VFP) + and the toolchain supports the option, then the + code can be optimized. + + Most people will answer N. config BR2_TARGET_OPTIMIZATION string "Target Optimizations" |