toolchain/gcc/Makefile

   1 # Makefile for to build a gcc/uClibc toolchain
   2 #
   3 # Copyright (C) 2002-2003 Erik Andersen <andersen@uclibc.org>
   4 # Copyright (C) 2004 Manuel Novoa III <mjn3@uclibc.org>
   5 # Copyright (C) 2005 Felix Fietkau <openwrt@nbd.name>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20
  21 include $(TOPDIR)/rules.mk
  22
  23 GCC_VERSION:=$(strip $(subst ",, $(CONFIG_GCC_VERSION)))#"))
  24
  25 #GCC_SITE:=ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(GCC_VERSION)
  26 GCC_SITE:=ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-$(GCC_VERSION) \
  27         http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(GCC_VERSION)
  28
  29 GCC_SOURCE:=gcc-$(GCC_VERSION).tar.bz2
  30 GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)
  31 GCC_CAT:=bzcat
  32
  33 #############################################################
  34 #
  35 # Setup some initial stuff
  36 #
  37 #############################################################
  38
  39 ifeq ($(CONFIG_INSTALL_LIBGCJ),y)
  40 TARGET_LANGUAGES:=c,c++,java
  41 else
  42 ifeq ($(CONFIG_INSTALL_LIBSTDCPP),y)
  43 TARGET_LANGUAGES:=c,c++
  44 else
  45 TARGET_LANGUAGES:=c
  46 endif
  47 endif
  48
  49 #############################################################
  50 #
  51 # build the first pass gcc compiler
  52 #
  53 #############################################################
  54
  55 GCC_BUILD_DIR1:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-initial
  56
  57 $(DL_DIR)/$(GCC_SOURCE):
  58         mkdir -p $(DL_DIR)
  59         $(SCRIPT_DIR)/download.pl $(DL_DIR) $(GCC_SOURCE) x $(GCC_SITE)
  60
  61 $(GCC_DIR)/.unpacked: $(DL_DIR)/$(GCC_SOURCE)
  62         mkdir -p $(TOOL_BUILD_DIR)
  63         $(GCC_CAT) $(DL_DIR)/$(GCC_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) -
  64         touch $(GCC_DIR)/.unpacked
  65
  66 $(GCC_DIR)/.patched: $(GCC_DIR)/.unpacked
  67         # Apply any files named gcc-*.patch from the source directory to gcc
  68         $(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) \*.patch
  69         # Note: The soft float situation has improved considerably with gcc 3.4.x.
  70         # We can dispense with the custom spec files, as well as libfloat for the arm case.
  71         # However, we still need a patch for arm.  There's a similar patch for gcc 3.3.x
  72         # which needs to be integrated so we can kill of libfloat for good.
  73         $(SED) 's,\(version_string.. = "[0-9\.]*\).*\(";\),\1 (OpenWrt-2.0)\2,' $(GCC_DIR)/gcc/version.c
  74         $(SED) 's,\(bug_report_url.. = "\).*\(";\),\1<URL:https://dev.openwrt.org/>\2,' $(GCC_DIR)/gcc/version.c
  75         touch $(GCC_DIR)/.patched
  76
  77 # The --without-headers option stopped working with gcc 3.0 and has never been
  78 # # fixed, so we need to actually have working C library header files prior to
  79 # # the step or libgcc will not build...
  80
  81 $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
  82         mkdir -p $(GCC_BUILD_DIR1)
  83         (cd $(GCC_BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \
  84                 $(GCC_DIR)/configure \
  85                 --prefix=$(STAGING_DIR) \
  86                 --build=$(GNU_HOST_NAME) \
  87                 --host=$(GNU_HOST_NAME) \
  88                 --target=$(REAL_GNU_TARGET_NAME) \
  89                 --enable-languages=c \
  90                 --disable-shared \
  91                 --with-sysroot=$(TOOL_BUILD_DIR)/uClibc_dev/ \
  92                 --disable-__cxa_atexit \
  93                 --enable-target-optspace \
  94                 --with-gnu-ld \
  95                 $(DISABLE_NLS) \
  96                 $(MULTILIB) \
  97         );
  98         touch $(GCC_BUILD_DIR1)/.configured
  99
 100 $(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured
 101         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc
 102         touch $(GCC_BUILD_DIR1)/.compiled
 103
 104 $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc: $(GCC_BUILD_DIR1)/.compiled
 105         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) install-gcc
 106
 107 #############################################################
 108 #
 109 # second pass compiler build.  Build the compiler targeting
 110 # the newly built shared uClibc library.
 111 #
 112 #############################################################
 113 #
 114 # Sigh... I had to rework things because using --with-gxx-include-dir
 115 # causes issues with include dir search order for g++.  This seems to
 116 # have something to do with "path translations" and possibly doesn't
 117 # affect gcc-target.  However, I haven't tested gcc-target yet so no
 118 # guarantees.  mjn3
 119
 120 GCC_BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-final
 121 $(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched $(STAGING_DIR)/lib/libc.a
 122         mkdir -p $(GCC_BUILD_DIR2)
 123         # Important!  Required for limits.h to be fixed.
 124         rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
 125         ln -sf ../include $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
 126         rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
 127         ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
 128         (cd $(GCC_BUILD_DIR2); rm -f config.cache; PATH=$(TARGET_PATH) \
 129                 $(GCC_DIR)/configure \
 130                 --prefix=$(STAGING_DIR) \
 131                 --build=$(GNU_HOST_NAME) \
 132                 --host=$(GNU_HOST_NAME) \
 133                 --target=$(REAL_GNU_TARGET_NAME) \
 134                 --enable-languages=$(TARGET_LANGUAGES) \
 135                 --enable-shared \
 136                 --disable-__cxa_atexit \
 137                 --enable-target-optspace \
 138                 --with-gnu-ld \
 139                 $(DISABLE_NLS) \
 140                 $(MULTILIB) \
 141         );
 142         touch $(GCC_BUILD_DIR2)/.configured
 143
 144 $(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured
 145         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) all
 146         touch $(GCC_BUILD_DIR2)/.compiled
 147
 148 gcc-install: $(GCC_BUILD_DIR2)/.compiled FORCE
 149         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) install
 150         echo $(GCC_VERSION) > $(STAGING_DIR)/gcc_version
 151         # Set up the symlinks to enable lying about target name.
 152         set -e; \
 153         (cd $(STAGING_DIR); \
 154                 ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
 155                 cd bin; \
 156                 for app in $(REAL_GNU_TARGET_NAME)-* ; do \
 157                         ln -sf $${app} \
 158                         $(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \
 159                 done; \
 160         );
 161 # We do another ugly hack here because the standard behaviour is
 162 # to include a reference to libgcc.so.1 in all binaries. For flash space
 163 # saving, we change the specs file to link in a static libgcc here.
 164         if [ -f $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \
 165                 patch -d $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/ -p0 < ./$(GCC_VERSION)/static-libgcc.patch.conditional ; \
 166         fi;
 167
 168 source: $(DL_DIR)/$(GCC_SOURCE)
 169 prepare: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc
 170 compile: gcc-install
 171 install:
 172 clean: gcc-clean
 173         rm -rf $(GCC_DIR)
 174         rm -rf $(GCC_BUILD_DIR1)
 175         rm -rf $(GCC_BUILD_DIR2)
 176         rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc*
 177         rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*