From: Ulf Samuelsson <ulf@atmel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PATCH] (ARM-specific) Allow use of arm-linux-gcc built with NWFPE emulation to compile U-Boot
Date: Mon, 26 Mar 2007 23:49:48 +0200 [thread overview]
Message-ID: <46083FFC.50304@atmel.com> (raw)
Author: Ulf Samuelsson
Date: 2007-03-27
Description:
Change "-msoftfloat" to $(SOFTFLOAT) for
arm920t
arm926ejs
This allows an arm toolchain using floating point emulation
for these cores to build u-boot.
When -msoftfloat is present as a flag to arm-linux-gcc,
the build fails.
The default operation is to keep -msoftfloat but if
CONFIG_NOSOFTFLOAT is defined as an environment variable
in the shell, the -msoftfloat is removed during the build
Example:
$ export CONFIG_NOSOFTFLOAT=y
$ make <board>_config
$ make
Signed-off-by: Ulf Samuelsson
diff -urN u-boot-2007-03-26/config.mk u-boot-2007-03-26-atmel/config.mk
--- u-boot-2007-03-26/config.mk 2007-03-26 22:52:54.000000000 +0200
+++ u-boot-2007-03-26-atmel/config.mk 2007-03-26 22:54:03.000000000 +0200
@@ -73,6 +73,12 @@
PLATFORM_CPPFLAGS+= -D__BLACKFIN__
endif
+ifeq ($(CONFIG_NOSOFTFLOAT),)
+SOFTFLOAT = -msoft-float
+else
+SOFTFLOAT =
+endif
+
ifdef ARCH
sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
endif
diff -urN u-boot-2007-03-26/cpu/arm920t/config.mk
u-boot-2007-03-26-atmel/cpu/arm920t/config.mk
--- u-boot-2007-03-26/cpu/arm920t/config.mk 2007-03-26
22:52:54.000000000 +0200
+++ u-boot-2007-03-26-atmel/cpu/arm920t/config.mk 2007-03-26
22:54:03.000000000 +0200
@@ -22,7 +22,7 @@
#
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
- -msoft-float
+ $(SOFTFLOAT)
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
diff -urN u-boot-2007-03-26/cpu/arm926ejs/config.mk
u-boot-2007-03-26-atmel/cpu/arm926ejs/config.mk
--- u-boot-2007-03-26/cpu/arm926ejs/config.mk 2007-03-26
22:52:54.000000000 +0200
+++ u-boot-2007-03-26-atmel/cpu/arm926ejs/config.mk 2007-03-26
22:54:03.000000000 +0200
@@ -22,7 +22,7 @@
#
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
- -msoft-float
+ $(SOFTFLOAT)
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
--
Best Regards,
Ulf Samuelsson
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next reply other threads:[~2007-03-26 21:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-26 21:49 Ulf Samuelsson [this message]
2007-04-02 15:27 ` [U-Boot-Users] [PATCH] (ARM-specific) Allow use of arm-linux-gcc built with NWFPE emulation to compile U-Boot Peter Pearse
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