openwrt/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 $(GCC_VERSION))
  24
  25 #GCC_SITE:=ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(GCC_VERSION)
  26 GCC_SITE:=http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(GCC_VERSION)
  27
  28 GCC_SOURCE:=gcc-$(GCC_VERSION).tar.bz2
  29 GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)
  30 GCC_CAT:=bzcat
  31 GCC_STRIP_HOST_BINARIES:=true
  32
  33 #############################################################
  34 #
  35 # Setup some initial stuff
  36 #
  37 #############################################################
  38
  39 ifeq ($(BR2_INSTALL_LIBGCJ),y)
  40 TARGET_LANGUAGES:=c,c++,java
  41 else
  42 ifeq ($(BR2_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 ifeq ($(BR2_SOFT_FLOAT),y)
  74 ifeq ("$(strip $(ARCH))","arm")
  75         $(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) arm-softfloat.patch.conditional
  76 endif
  77 ifeq ("$(strip $(ARCH))","armeb")
  78         $(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) arm-softfloat.patch.conditional
  79 endif
  80 endif
  81         touch $(GCC_DIR)/.patched
  82
  83 # The --without-headers option stopped working with gcc 3.0 and has never been
  84 # # fixed, so we need to actually have working C library header files prior to
  85 # # the step or libgcc will not build...
  86
  87 $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
  88         mkdir -p $(GCC_BUILD_DIR1)
  89         (cd $(GCC_BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \
  90                 $(GCC_DIR)/configure \
  91                 --prefix=$(STAGING_DIR) \
  92                 --build=$(GNU_HOST_NAME) \
  93                 --host=$(GNU_HOST_NAME) \
  94                 --target=$(REAL_GNU_TARGET_NAME) \
  95                 --enable-languages=c \
  96                 --disable-shared \
  97                 --with-sysroot=$(TOOL_BUILD_DIR)/uClibc_dev/ \
  98                 --disable-__cxa_atexit \
  99                 --enable-target-optspace \
 100                 --with-gnu-ld \
 101                 $(DISABLE_NLS) \
 102                 $(MULTILIB) \
 103                 $(SOFT_FLOAT_CONFIG_OPTION) \
 104                 $(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
 105                 $(EXTRA_GCC_CONFIG_OPTIONS));
 106         touch $(GCC_BUILD_DIR1)/.configured
 107
 108 $(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured
 109         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc
 110         touch $(GCC_BUILD_DIR1)/.compiled
 111
 112 $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc: $(GCC_BUILD_DIR1)/.compiled
 113         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) install-gcc
 114
 115 #############################################################
 116 #
 117 # second pass compiler build.  Build the compiler targeting
 118 # the newly built shared uClibc library.
 119 #
 120 #############################################################
 121 #
 122 # Sigh... I had to rework things because using --with-gxx-include-dir
 123 # causes issues with include dir search order for g++.  This seems to
 124 # have something to do with "path translations" and possibly doesn't
 125 # affect gcc-target.  However, I haven't tested gcc-target yet so no
 126 # guarantees.  mjn3
 127
 128 GCC_BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-final
 129 $(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched $(STAGING_DIR)/lib/libc.a
 130         mkdir -p $(GCC_BUILD_DIR2)
 131         # Important!  Required for limits.h to be fixed.
 132         rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
 133         ln -sf ../include $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
 134         rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
 135         ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
 136         (cd $(GCC_BUILD_DIR2); rm -f config.cache; PATH=$(TARGET_PATH) \
 137                 $(GCC_DIR)/configure \
 138                 --prefix=$(STAGING_DIR) \
 139                 --build=$(GNU_HOST_NAME) \
 140                 --host=$(GNU_HOST_NAME) \
 141                 --target=$(REAL_GNU_TARGET_NAME) \
 142                 --enable-languages=$(TARGET_LANGUAGES) \
 143                 --enable-shared \
 144                 --disable-__cxa_atexit \
 145                 --enable-target-optspace \
 146                 --with-gnu-ld \
 147                 $(DISABLE_NLS) \
 148                 $(MULTILIB) \
 149                 $(SOFT_FLOAT_CONFIG_OPTION) \
 150                 $(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
 151                 $(GCC_USE_SJLJ_EXCEPTIONS) \
 152                 $(EXTRA_GCC_CONFIG_OPTIONS));
 153         touch $(GCC_BUILD_DIR2)/.configured
 154
 155 $(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured
 156         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) all
 157         touch $(GCC_BUILD_DIR2)/.compiled
 158
 159 gcc-install: $(GCC_BUILD_DIR2)/.compiled
 160         PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) install
 161         echo $(GCC_VERSION) > $(STAGING_DIR)/gcc_version
 162         # Set up the symlinks to enable lying about target name.
 163         set -e; \
 164         (cd $(STAGING_DIR); \
 165                 ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
 166                 cd bin; \
 167                 for app in $(REAL_GNU_TARGET_NAME)-* ; do \
 168                         ln -sf $${app} \
 169                         $(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \
 170                 done; \
 171         );
 172         #
 173         # Now for the ugly 3.3.x soft float hack...
 174         #
 175 ifeq ($(BR2_SOFT_FLOAT),y)
 176 ifeq ($(findstring 3.3.,$(GCC_VERSION)),3.3.)
 177         # Make sure we have a soft float specs file for this arch
 178         if [ ! -f ./$(GCC_VERSION)/specs-$(ARCH)-soft-float ] ; then \
 179                 echo soft float configured but no specs file for this arch ; \
 180                 /bin/false ; \
 181         fi;
 182         # Replace specs file with one that defaults to soft float mode.
 183         if [ ! -f $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \
 184                 echo staging dir specs file is missing ; \
 185                 /bin/false ; \
 186         fi;
 187         cp ./$(GCC_VERSION)/specs-$(ARCH)-soft-float $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs
 188 endif
 189 endif
 190
 191 source: $(DL_DIR)/$(GCC_SOURCE)
 192 prepare: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc
 193 compile: gcc-install
 194 install:
 195 clean: gcc-clean
 196         rm -rf $(GCC_DIR)
 197         rm -rf $(GCC_BUILD_DIR1)
 198         rm -rf $(GCC_BUILD_DIR2)
 199         rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc*
 200         rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*