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-rw-r--r--Makefile61
1 files changed, 48 insertions, 13 deletions
diff --git a/Makefile b/Makefile
index eeb75c8d4..ed84e7059 100644
--- a/Makefile
+++ b/Makefile
@@ -46,17 +46,26 @@ ARCH:=i386
#ARCH:=sparc
#ARCH:=whatever
+# Enable this if you want to use an <arch>-linux-uclibc-* toolchain.
+# Note that, to avoid configure problems with apps that don't support
+# this tupple, we also put <arch>-linux-* symlinks in staging_dir/bin.
+# WARNING -- This does not yet support soft-float builds.
+USE_LINUX_UCLIBC:=true
+#USE_LINUX_UCLIBC:=false
+
# If you are building a native gcc toolchain, do you want to
# build the old gcc-2.95 based toolchain, or would you prefer
# a nice and shiny new gcc-3.3.2 toolchain?
-# WARNING -- 2.95 currently does not build.
+# WARNING -- 2.95 currently does not build unless USE_LINUX_UCLIBC:=true.
+# WARNING -- 2.95 currently only builds for i386, arm, mips*, and powerpc.
+# WARNING -- 2.95 does not currently build natively for the target.
+#GCC_2_95_TOOLCHAIN:=true
GCC_2_95_TOOLCHAIN:=false
-# WARNING -- 2.95 currently does not build.
# Enable this to use the uClibc daily snapshot instead of a released
# version. Daily snapshots may contain new features and bugfixes. Or
# they may not even compile at all, depending on what Erik is doing...
-USE_UCLIBC_SNAPSHOT:=false
+USE_UCLIBC_SNAPSHOT:=true
# Enable this to use the busybox daily snapshot instead of a released
# version. Daily snapshots may contain new features and bugfixes. Or
@@ -70,12 +79,15 @@ BUILD_WITH_LARGEFILE:=true
WGET:=wget --passive-ftp
# Optimize toolchain for which type of CPU?
+ifeq ($(USE_LINUX_UCLIBC),true)
+OPTIMIZE_FOR_CPU=$(ARCH)
+#OPTIMIZE_FOR_CPU=i686
+#OPTIMIZE_FOR_CPU=whatever
+else
# WARNING!!! CURRENTLY BROKEN!!! LEAVE IT AS $(ARCH)!!!
OPTIMIZE_FOR_CPU=$(ARCH)
# WARNING!!! CURRENTLY BROKEN!!! LEAVE IT AS $(ARCH)!!!
-#OPTIMIZE_FOR_CPU=i486
-#OPTIMIZE_FOR_CPU=strongarm
-#OPTIMIZE_FOR_CPU=whatever
+endif
# Soft floating point options.
# Notes:
@@ -200,6 +212,11 @@ TARGETS+=ext2root
#
#############################################################
+# The new stuff doesn't support soft float yet.
+ifeq ($(USE_LINUX_UCLIBC),true)
+SOFT_FLOAT:=false
+endif
+
ifeq ($(SOFT_FLOAT),true)
SOFT_FLOAT_CONFIG_OPTION:=--without-float
TARGET_SOFT_FLOAT:=-msoft-float
@@ -210,9 +227,13 @@ TARGET_SOFT_FLOAT:=
ARCH_FPU_SUFFIX:=
endif
+# The new stuff auto-detects approrpriate locale support.
+# So only set this for the old 'hacked' toolchain.
+ifneq ($(USE_LINUX_UCLIBC),true)
ifeq ($(ENABLE_LOCALE),true)
EXTRA_GCC_CONFIG_OPTIONS += --enable-clocale=gnu
endif
+endif
# WARNING -- uClibc currently disables large file support on cris.
ifeq ("$(strip $(ARCH))","cris")
@@ -234,15 +255,24 @@ TARGET_DIR:=$(BUILD_DIR)/root
STAGING_DIR=$(BUILD_DIR)/staging_dir
TOOL_BUILD_DIR=$(BASE_DIR)/toolchain_build_$(ARCH)$(ARCH_FPU_SUFFIX)
TARGET_PATH=$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
-#TARGET_CROSS=$(STAGING_DIR)/bin/$(ARCH)-uclibc-
-TARGET_CROSS=$(STAGING_DIR)/bin/$(ARCH)-linux-
-TARGET_CC=$(TARGET_CROSS)gcc$(TARGET_SOFT_FLOAT)
-STRIP=$(TARGET_CROSS)strip --remove-section=.comment --remove-section=.note
-#STRIP:=/bin/true
IMAGE:=$(BASE_DIR)/root_fs_$(ARCH)$(ARCH_FPU_SUFFIX)
+
+ifeq ($(USE_LINUX_UCLIBC),true)
+REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
+GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
+KERNEL_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+TARGET_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+else
+REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
-#KERNEL_CROSS=$(STAGING_DIR)/bin/$(ARCH)-uclibc-
-KERNEL_CROSS=$(STAGING_DIR)/bin/$(ARCH)-linux-
+KERNEL_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-
+TARGET_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-
+endif
+
+TARGET_CC=$(TARGET_CROSS)gcc$(TARGET_SOFT_FLOAT)
+STRIP=$(TARGET_CROSS)strip --remove-section=.comment --remove-section=.note
+
+
HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
-e 's/sparc.*/sparc/' \
-e 's/arm.*/arm/g' \
@@ -301,7 +331,12 @@ $(STAGING_DIR):
rm -rf $(STAGING_DIR)
mkdir -p $(STAGING_DIR)/lib
mkdir -p $(STAGING_DIR)/usr
+ifneq ($(GCC_2_95_TOOLCHAIN),true)
mkdir -p $(STAGING_DIR)/include
+else
+ mkdir -p $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/include
+ (cd $(STAGING_DIR); ln -fs $(REAL_GNU_TARGET_NAME)/include)
+endif
ln -fs ../lib $(STAGING_DIR)/usr/lib
$(TARGET_DIR):