X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/a345da1bda4eede9b6ac4cc6b1222e2345a698bd..541bff098ea1ef2c9002b63dd8247cc99b4eade6:/toolchain/Makefile

diff --git a/toolchain/Makefile b/toolchain/Makefile
index c99116db6..7c96c85e2 100644
--- a/toolchain/Makefile
+++ b/toolchain/Makefile
@@ -1,57 +1,80 @@
+# 
+# Copyright (C) 2007-2009 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
 # Main makefile for the toolchain
-include $(TOPDIR)/rules.mk
-TARGETS:=sed utils binutils gcc uClibc ipkg-utils gdb libnotimpl
-
-TARGETS_INSTALL:=$(patsubst %,%-install,$(TARGETS))
-TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
-
-all: install
-install: $(TARGETS_INSTALL)
-clean: $(TARGETS_CLEAN)
-
-uClibc-prepare: kernel-headers-prepare sed-install utils-install
-binutils-prepare: uClibc-prepare
-gcc-prepare: binutils-install
-uClibc-compile: gcc-prepare
-gcc-compile: uClibc-install
-
-TOOLCHAIN_STAMP_DIR:=$(STAGING_DIR)/stampfiles
-
-$(TOOLCHAIN_STAMP_DIR):
-	mkdir -p $(TOOLCHAIN_STAMP_DIR)
-
-$(STAGING_DIR):
-	@mkdir -p $(STAGING_DIR)/lib
-	@mkdir -p $(STAGING_DIR)/include
-	@mkdir -p $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)
-	@ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
-
-$(TOOL_BUILD_DIR):
-	@mkdir -p $(TOOL_BUILD_DIR)
-
-%-prepare: $(TOOLCHAIN_STAMP_DIR) $(STAGING_DIR) $(TOOL_BUILD_DIR)
-	@[ -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@ ] || { \
-		$(TRACE) toolchain/$(patsubst %-prepare,%,$@)/prepare; \
-		$(MAKE) -C $(patsubst %-prepare,%,$@) prepare $(MAKE_TRACE); \
-	}
-	@touch $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@
-
-%-compile: %-prepare 
-	@[ -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@ ] || { \
-		$(TRACE) toolchain/$(patsubst %-compile,%,$@)/compile; \
-		$(MAKE) -C $(patsubst %-compile,%,$@) compile $(MAKE_TRACE); \
-	}
-	@touch $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@
-
-%-install: %-compile
-	@[ -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@ ] || { \
-		$(TRACE) toolchain/$(patsubst %-install,%,$@)/install; \
-		$(MAKE) -C $(patsubst %-install,%,$@) install $(MAKE_TRACE); \
-	}
-	@touch $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@
-
-%-clean:
-	$(TRACE) toolchain/$(patsubst %-clean,%,$@)/clean
-	@$(MAKE) -C $(patsubst %-clean,%,$@) clean $(MAKE_TRACE)
-	@rm -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$(patsubst %-clean,%,$@)-*
+#
+# Steps:
+# 1) toolchain/binutils/install
+#    build & install binutils
+# 2) toolchain/gcc/prepare
+#    build & install a minimal gcc, needed for steps 3 & 4
+# 3) toolchain/kernel-headers/install
+#    install kernel headers, needed for step 4
+# 4) toolchain/libc/prepare
+#    build & install libc headers & support files, needed for step 5
+# 5) toolchain/gcc/compile
+#    build & install an initial gcc, needed for step 6
+# 6) toolchain/libc/compile
+#    build & install the final libc
+# 7) toolchain/gcc/install
+#    build & install the final gcc
+# 8) toolchain/libc/install
+#    build & install libc utilities
+#
+
+curdir:=toolchain
+
+# subdirectories to descend into
+$(curdir)/builddirs := $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_INSIGHT),insight) $(if $(CONFIG_EXTERNAL_TOOLCHAIN),,kernel-headers binutils gcc/minimal gcc/initial gcc/final $(LIBC) $(if $(CONFIG_GLIBC_PORTS),glibc-ports))
+$(curdir)/builddirs-compile:=$($(curdir)/builddirs-prepare)
+$(curdir)/builddirs-install:=$($(curdir)/builddirs-compile)
+
+# builddir dependencies
+ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+  $(curdir)/$(LIBC)/prepare:=$(curdir)/kernel-headers/install
+  $(curdir)/gcc/minimal/compile:=$(curdir)/binutils/install
+  $(curdir)/kernel-headers/install:=$(curdir)/gcc/minimal/install
+  $(curdir)/gcc/initial/compile:=$(curdir)/$(LIBC)/prepare
+  $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/initial/install
+  $(curdir)/gcc/final/compile:=$(curdir)/$(LIBC)/compile
+  $(curdir)/$(LIBC)/install:=$(curdir)/gcc/final/install
+  ifneq ($(CONFIG_GLIBC_PORTS),)
+    $(curdir)/glibc/prepare:=$(curdir)/glibc-ports/prepare
+  endif
+endif
+
+ifdef CONFIG_GCC_VERSION_LLVM
+  $(curdir)/builddirs += llvm
+  $(curdir)/gcc/minimal/compile += $(curdir)/llvm/install
+endif
+
+ifndef DUMP_TARGET_DB
+ifneq ($(ARCH),)
+  $(TOOLCHAIN_DIR)/info.mk: .config
+	@for dir in $(TOOLCHAIN_DIR); do ( \
+		set -x; \
+		mkdir -p "$$dir"; \
+		cd "$$dir"; \
+		mkdir -p stamp lib usr/include usr/lib ; \
+	); done
+	@grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
+	@touch $@
+endif
+endif
+
+# prerequisites for the individual targets
+$(curdir)/ := .config prereq
+$(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk
+$(curdir)//compile = $(1)/prepare
+$(curdir)//install = $(1)/compile
+
+ifndef DUMP_TARGET_DB
+$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
+endif
+
+$(eval $(call stampfile,$(curdir),toolchain,install,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
+$(eval $(call subdir,$(curdir)))