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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2012-08-01 18:04:50 (GMT)
committer Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2012-08-01 18:04:50 (GMT)
commitf648ad2817b32ea6c89965b82c282cb812bd6646 (patch)
tree5650d2c38bfcb0fc33c6f032ddd1acd9294455b8
parentfdbc2f4059e96eb642c5f973e08acd33a2659f2e (diff)
downloadbuildroot-f648ad2817b32ea6c89965b82c282cb812bd6646.tar.gz
buildroot-f648ad2817b32ea6c89965b82c282cb812bd6646.tar.bz2
toolchain-external: do not allow the user to select hard/soft float
Commit ba92d6ef68eeb37ba435648fcfbd1dbe13212e6d made hard float the default when Cortex-A8 and Cortex-A9. The problem it was trying to fix is that the newer Linaro toolchains (2012.05 and 2012.06) are hard-float, so the default selection of soft-float enabled on ARM doesn't work for those toolchains. Unfortunately, not selecting soft-float causes problems with the Crosstool-NG backend at the moment. As an intermediate solution, make the soft float option disappear when using external toolchain: the toolchain will decide by itself whether to generate hard float or soft float code. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-rw-r--r--toolchain/toolchain-common.in5
1 files changed, 4 insertions, 1 deletions
diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
index 710f2df..6e0d159 100644
--- a/toolchain/toolchain-common.in
+++ b/toolchain/toolchain-common.in
@@ -101,7 +101,7 @@ config BR2_USE_MMU
config BR2_PREFER_SOFT_FLOAT
bool
- default y if (BR2_arm && !BR2_cortex_a8 && !BR2_cortex_a9)
+ default y if BR2_arm
default y if BR2_armeb
default y if BR2_avr32
default y if BR2_mips
@@ -110,6 +110,9 @@ config BR2_PREFER_SOFT_FLOAT
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
+ # External toolchains will automatically do soft float or hard
+ # float depending on their configuration
+ depends on BR2_TOOLCHAIN_BUILDROOT || BR2_TOOLCHAIN_CTNG
default $(BR2_PREFER_SOFT_FLOAT)
help
If your target CPU does not have a Floating Point Unit (FPU) or a