From 5a6087d62e5c2a272278606ebf1cc62830cf4c68 Mon Sep 17 00:00:00 2001
From: Gustavo Zacarias <gustavo@zacarias.com.ar>
Date: Thu, 5 Jan 2012 16:31:43 -0300
Subject: toolchain: add powerpc SPE ABI support

Add the ability for buildroot to build an SPE ABI enabled toolchain.

This is mandatory for e500v1/v2 cores since they don't support classic
FPU mode as the e500mc does.

Useful for Freescale's PowerQUICC III and single/dual-core QorIQ
line of processors.

The new TARGET_ABI variable is used rather than TARGET_CFLAGS for
uclibc's UCLIBC_EXTRA_CFLAGS to avoid breakish CFLAGS leaking in, a
good example being -mthumb for ARM.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 toolchain/gcc/Makefile.in  | 5 +++++
 toolchain/uClibc/uclibc.mk | 8 +++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

(limited to 'toolchain')

diff --git a/toolchain/gcc/Makefile.in b/toolchain/gcc/Makefile.in
index 2e55ed0f7..d9efcf063 100644
--- a/toolchain/gcc/Makefile.in
+++ b/toolchain/gcc/Makefile.in
@@ -47,6 +47,11 @@ EXTRA_GCC_CONFIG_OPTIONS+=--disable-libmudflap
 SOFT_FLOAT_CONFIG_OPTION:=
 endif
 
+# Disable mudflap and enable proper double/long double for SPE ABI
+ifeq ($(BR2_powerpc_SPE),y)
+EXTRA_GCC_CONFIG_OPTIONS+=--disable-libmudflap --enable-e500_double --with-long-double-128
+endif
+
 ifeq ($(BR2_PACKAGE_GCC_TARGET),y)
 EXTRA_TARGET_GCC_CONFIG_OPTIONS:=
 
diff --git a/toolchain/uClibc/uclibc.mk b/toolchain/uClibc/uclibc.mk
index fbfb0dfd1..ee474bbb6 100644
--- a/toolchain/uClibc/uclibc.mk
+++ b/toolchain/uClibc/uclibc.mk
@@ -217,7 +217,7 @@ ifeq ($(UCLIBC_TARGET_ARCH),sparc)
 	$(SED) 's/^.*$(UCLIBC_SPARC_TYPE)[^B].*/$(UCLIBC_SPARC_TYPE)=y/g' $(UCLIBC_DIR)/.oldconfig
 endif
 ifeq ($(UCLIBC_TARGET_ARCH),powerpc)
-ifeq ($(BR2_powerpc_8540)$(BR2_powerpc_e500mc),y)
+ifeq ($(BR2_powerpc_8540)$(BR2_powerpc_8548)$(BR2_powerpc_e500mc),y)
 	/bin/echo "# CONFIG_CLASSIC is not set" >> $(UCLIBC_DIR)/.oldconfig
 	/bin/echo "CONFIG_E500=y" >> $(UCLIBC_DIR)/.oldconfig
 else
@@ -385,6 +385,7 @@ $(UCLIBC_DIR)/.config: $(UCLIBC_DIR)/.oldconfig
 		DEVEL_PREFIX=/usr/ \
 		RUNTIME_PREFIX=$(TOOLCHAIN_DIR)/uClibc_dev/ \
 		CROSS_COMPILE="$(TARGET_CROSS)" \
+		UCLIB_EXTRA_CFLAGS="$(TARGET_ABI)" \
 		HOSTCC="$(HOSTCC)" \
 		oldconfig
 	touch $@
@@ -403,6 +404,7 @@ $(UCLIBC_DIR)/.configured: $(LINUX_HEADERS_DIR)/.configured $(UCLIBC_DIR)/.confi
 		DEVEL_PREFIX=/usr/ \
 		RUNTIME_PREFIX=$(TOOLCHAIN_DIR)/uClibc_dev/ \
 		CROSS_COMPILE="$(TARGET_CROSS)" \
+		UCLIB_EXTRA_CFLAGS="$(TARGET_ABI)" \
 		HOSTCC="$(HOSTCC)" headers \
 		lib/crt1.o lib/crti.o lib/crtn.o \
 		install_headers
@@ -424,6 +426,7 @@ $(UCLIBC_DIR)/lib/libc.a: $(UCLIBC_DIR)/.configured $(gcc_intermediate) $(LIBFLO
 		DEVEL_PREFIX=/ \
 		RUNTIME_PREFIX=/ \
 		CROSS_COMPILE="$(TARGET_CROSS)" \
+		UCLIB_EXTRA_CFLAGS="$(TARGET_ABI)" \
 		HOSTCC="$(HOSTCC)" \
 		all
 	touch -c $@
@@ -435,6 +438,7 @@ uclibc-menuconfig: dirs $(UCLIBC_DIR)/.config
 		DEVEL_PREFIX=/usr/ \
 		RUNTIME_PREFIX=$(TOOLCHAIN_DIR)/uClibc_dev/ \
 		CROSS_COMPILE="$(TARGET_CROSS)" \
+		UCLIB_EXTRA_CFLAGS="$(TARGET_ABI)" \
 		HOSTCC="$(HOSTCC)" \
 		menuconfig && \
 	touch -c $(UCLIBC_DIR)/.config
@@ -447,6 +451,7 @@ $(STAGING_DIR)/usr/lib/libc.a: $(UCLIBC_DIR)/lib/libc.a
 		DEVEL_PREFIX=/usr/ \
 		RUNTIME_PREFIX=/ \
 		CROSS_COMPILE="$(TARGET_CROSS)" \
+		UCLIB_EXTRA_CFLAGS="$(TARGET_ABI)" \
 		install_runtime install_dev
 	# Install the kernel headers to the staging dir if necessary
 	if [ ! -f $(STAGING_DIR)/usr/include/linux/version.h ]; then \
@@ -477,6 +482,7 @@ $(TARGET_DIR)/lib/libc.so.0: $(STAGING_DIR)/usr/lib/libc.a
 		DEVEL_PREFIX=/usr/ \
 		RUNTIME_PREFIX=/ \
 		CROSS_COMPILE="$(TARGET_CROSS)" \
+		UCLIB_EXTRA_CFLAGS="$(TARGET_ABI)" \
 		install_runtime
 	touch -c $@
 
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