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mpc85xx: add a new 'spe_fpu' feature flag for the FPU used on freescale powerpc cpus The SPE FPU is ABI-incompatible with the regular powerpc FPU, this needs to be reflected in the toolchain target name. Fixes floating point crashes in user space

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SVN-Revision: 25018
This commit is contained in:
Felix Fietkau 2011-01-16 01:25:06 +00:00
parent 9299345c7f
commit 8740549c57
4 changed files with 10 additions and 1 deletions
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3
rules.mk
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@ -69,6 +69,9 @@ endif
ifneq ($(findstring -march=armv5te,$(TARGET_OPTIMIZATION)),)
ARCH_SUFFIX:=_v5te
endif
ifdef CONFIG_HAS_SPE_FPU
TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
endif
DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
BIN_DIR:=$(TOPDIR)/bin/$(BOARD)

1
scripts/metadata.pl
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@ -168,6 +168,7 @@ sub target_config_features(@) {
/cpiogz/ and $ret .= "\tselect USES_CPIOGZ\n";
/ubifs/ and $ret .= "\tselect USES_UBIFS\n";
/fpu/ and $ret .= "\tselect HAS_FPU\n";
/spe_fpu/ and $ret .= "\tselect HAS_SPE_FPU\n";
/ramdisk/ and $ret .= "\tselect USES_INITRAMFS\n";
/powerpc64/ and $ret .= "\tselect powerpc64\n";
/nommu/ and $ret .= "\tselect NOMMU\n";

5
target/Config.in
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@ -2,6 +2,11 @@ source "tmp/.config-target.in"
# Kernel/Hardware features
config HAS_SPE_FPU
depends powerpc
select HAS_FPU
bool
config HAS_FPU
bool

2
target/linux/mpc85xx/Makefile
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@ -10,7 +10,7 @@ ARCH:=powerpc
BOARD:=mpc85xx
BOARDNAME:=Freescale MPC85xx
CFLAGS:=-Os -pipe -funit-at-a-time -mcpu=8540
FEATURES:=fpu ramdisk broken
FEATURES:=spe_fpu ramdisk broken
MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>
LINUX_VERSION:=2.6.36.2