source: trunk/rules.mk @ 26593

Last change on this file since 26593 was 26593, checked in by jow, 5 years ago

[buildroot] rules.mk: properly populate $(LIBGCC_S) for external toolchains

  • Property svn:eol-style set to native
File size: 8.5 KB
Line 
1#
2# Copyright (C) 2006-2010 OpenWrt.org
3#
4# This is free software, licensed under the GNU General Public License v2.
5# See /LICENSE for more information.
6#
7
8ifneq ($(__rules_inc),1)
9__rules_inc=1
10
11ifeq ($(DUMP),)
12  -include $(TOPDIR)/.config
13endif
14include $(TOPDIR)/include/debug.mk
15include $(TOPDIR)/include/verbose.mk
16
17TMP_DIR:=$(TOPDIR)/tmp
18
19GREP_OPTIONS=
20export GREP_OPTIONS
21
22qstrip=$(strip $(subst ",,$(1)))
23#"))
24
25empty:=
26space:= $(empty) $(empty)
27merge=$(subst $(space),,$(1))
28confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
29strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
30
31define sep
32
33endef
34
35_SINGLE=export MAKEFLAGS=$(space);
36CFLAGS:=
37ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
38ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
39BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
40TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
41TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
42BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
43SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
44export SHELL:=/usr/bin/env bash
45
46OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
47
48ifeq ($(ARCH),powerpc)
49  FPIC:=-fPIC
50else
51  FPIC:=-fpic
52endif
53
54HOST_FPIC:=-fPIC
55
56ARCH_SUFFIX:=
57GCC_ARCH:=
58
59ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
60  ARCH_SUFFIX:=_$(patsubst -march=arm%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
61  GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
62endif
63ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
64  ARCH_SUFFIX:=_r2
65endif
66ifdef CONFIG_HAS_SPE_FPU
67  TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
68endif
69
70DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
71BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
72INCLUDE_DIR:=$(TOPDIR)/include
73SCRIPT_DIR:=$(TOPDIR)/scripts
74BUILD_DIR_BASE:=$(TOPDIR)/build_dir
75BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
76STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
77ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
78  GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
79  LIBC:=$(call qstrip,$(CONFIG_LIBC))
80  LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
81  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
82  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
83  DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
84  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
85  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)
86  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
87  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
88  PACKAGE_DIR:=$(BIN_DIR)/packages
89else
90  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
91    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
92  else
93    GNU_TARGET_NAME=$(shell gcc -dumpmachine)
94  endif
95  REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
96  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
97  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)
98  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
99  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
100  PACKAGE_DIR:=$(BIN_DIR)/packages
101endif
102STAMP_DIR:=$(BUILD_DIR)/stamp
103STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
104TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
105TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
106STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
107BUILD_LOG_DIR:=$(TOPDIR)/logs
108
109TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(PATH)
110TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
111TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
112TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
113ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
114LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
115LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
116else
117LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
118endif
119ifdef CONFIG_USE_UCLIBC
120LIBRPC=-lrpc
121endif
122LIBRPC_DEPENDS=+USE_UCLIBC:librpc
123
124ifndef DUMP
125  ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
126    -include $(TOOLCHAIN_DIR)/info.mk
127    TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
128    TARGET_CFLAGS+= -fhonour-copts
129    TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
130    TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
131    TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
132  else
133    ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
134      TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
135      TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
136      TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
137      TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
138      TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
139      ifneq ($(TOOLCHAIN_BIN_DIRS),)
140        TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
141      endif
142      ifneq ($(TOOLCHAIN_INC_DIRS),)
143        TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
144      endif
145      ifneq ($(TOOLCHAIN_LIB_DIRS),)
146        TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
147      endif
148      TOOLCHAIN_DIR:=$(TOOLCHAIN_ROOT_DIR)
149    endif
150  endif
151endif
152TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
153
154ifeq ($(CONFIG_SOFT_FLOAT),y)
155  SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
156  TARGET_CFLAGS+= -msoft-float
157else
158  SOFT_FLOAT_CONFIG_OPTION:=
159endif
160
161export PATH:=$(TARGET_PATH)
162export STAGING_DIR
163export GCC_HONOUR_COPTS:=0
164export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
165
166PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
167
168export PKG_CONFIG
169
170HOSTCC:=gcc
171HOST_CFLAGS:=-O2 -I$(STAGING_DIR_HOST)/include
172HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
173
174TARGET_CC:=$(TARGET_CROSS)gcc
175TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
176KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
177SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
178CP:=cp -fpR
179LN:=ln -sf
180
181INSTALL_BIN:=install -m0755
182INSTALL_DIR:=install -d -m0755
183INSTALL_DATA:=install -m0644
184INSTALL_CONF:=install -m0600
185
186ifneq ($(CONFIG_CCACHE),)
187  TARGET_CC:= ccache $(TARGET_CC)
188  TARGET_CXX:= ccache $(TARGET_CXX)
189endif
190
191TARGET_CONFIGURE_OPTS = \
192  AR=$(TARGET_CROSS)ar \
193  AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
194  LD=$(TARGET_CROSS)ld \
195  NM=$(TARGET_CROSS)nm \
196  CC="$(TARGET_CC)" \
197  GCC="$(TARGET_CC)" \
198  CXX="$(TARGET_CXX)" \
199  RANLIB=$(TARGET_CROSS)ranlib \
200  STRIP=$(TARGET_CROSS)strip \
201  OBJCOPY=$(TARGET_CROSS)objcopy \
202  OBJDUMP=$(TARGET_CROSS)objdump \
203  SIZE=$(TARGET_CROSS)size
204
205# strip an entire directory
206ifneq ($(CONFIG_NO_STRIP),)
207  RSTRIP:=:
208  STRIP:=:
209else
210  ifneq ($(CONFIG_USE_STRIP),)
211    STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
212  else
213    ifneq ($(CONFIG_USE_SSTRIP),)
214      STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
215    endif
216  endif
217  RSTRIP:= \
218    NM="$(TARGET_CROSS)nm" \
219    STRIP="$(STRIP)" \
220    STRIP_KMOD="$(TARGET_CROSS)strip --strip-unneeded -R .comment -R .pdr -R .mdebug.abi32 -R .note.gnu.build-id -R .gnu.attributes -R .reginfo -x" \
221    $(SCRIPT_DIR)/rstrip.sh
222endif
223
224ifeq ($(CONFIG_ENABLE_LOCALE),true)
225  DISABLE_NLS:=--enable-nls
226else
227  DISABLE_NLS:=--disable-nls
228endif
229
230ifeq ($(CONFIG_IPV6),y)
231  DISABLE_IPV6:=
232else
233  DISABLE_IPV6:=--disable-ipv6
234endif
235
236ifeq ($(CONFIG_TAR_VERBOSITY),y)
237  TAR_OPTIONS:=-xvf -
238else
239  TAR_OPTIONS:=-xf -
240endif
241
242define shvar
243V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
244endef
245
246define shexport
247$(call shvar,$(1))=$$(call $(1))
248export $(call shvar,$(1))
249endef
250
251define include_mk
252$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
253endef
254
255# Execute commands under flock
256# $(1) => The shell expression.
257# $(2) => The lock name. If not given, the global lock will be used.
258define locked
259        SHELL= \
260        $(STAGING_DIR_HOST)/bin/flock \
261                $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
262                -c '$(subst ','\'',$(1))'
263endef
264
265# file extension
266ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
267
268all:
269FORCE: ;
270.PHONY: FORCE
271
272val.%:
273        @$(if $(filter undefined,$(origin $*)),\
274                echo "$* undefined" >&2, \
275                echo '$(subst ','"'"',$($*))' \
276        )
277
278var.%:
279        @$(if $(filter undefined,$(origin $*)),\
280                echo "$* undefined" >&2, \
281                echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
282        )
283
284endif #__rules_inc
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