# Rules.make for uClibc
#
# Copyright (C) 2000 by Lineo, inc.
-# Copyright (C) 2000-200
2 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2000-200
6 Erik Andersen <andersen@uclibc.org>
#
-# This program is free software; you can redistribute it and/or modify it under
-# the terms of the GNU Library General Public License as published by the Free
-# Software Foundation; either version 2 of the License, or (at your option) any
-# later version.
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Library General Public License
-# along with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
#-----------------------------------------------------------
# This file contains rules which are shared between multiple
INSTALL = install
LN = ln
RM = rm -f
+TAR = tar
STRIP_FLAGS ?= -x -R .note -R .comment
# Select the compiler needed to build binaries for your development system
HOSTCC = gcc
-HOSTCFLAGS = -O2 -Wall
+BUILD_CFLAGS = -O2 -Wall
#---------------------------------------------------------
# Nothing beyond this point should ever be touched by mere
# mortals. Unless you hang out with the gods, you should
# probably leave all this stuff alone.
+
+# Pull in the user's uClibc configuration
+ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
+-include $(top_builddir).config
+endif
+
+# Make certain these contain a final "/", but no "//"s.
+TARGET_ARCH:=$(shell grep -s '^TARGET_ARCH' $(top_builddir)/.config | sed -e 's/^TARGET_ARCH=//' -e 's/"//g')
+TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
+RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(RUNTIME_PREFIX))))))
+DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(DEVEL_PREFIX))))))
+KERNEL_SOURCE:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(KERNEL_SOURCE))))))
+export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_SOURCE
+
+
+# Now config hard core
MAJOR_VERSION := 0
MINOR_VERSION := 9
SUBLEVEL := 28
LC_ALL := C
export MAJOR_VERSION MINOR_VERSION SUBLEVEL VERSION LC_ALL
-SHARED_MAJORNAME:=libc.so.$(MAJOR_VERSION)
-UCLIBC_LDSO:=ld-uClibc.so.$(MAJOR_VERSION)
-NONSHARED_LIBNAME:=uclibc_nonshared.a
+LIBC := libc
+SHARED_MAJORNAME := $(LIBC).so.$(MAJOR_VERSION)
+UCLIBC_LDSO_NAME := ld-uClibc
+ifeq ($(TARGET_ARCH),x86_64)
+UCLIBC_LDSO_NAME := ld64-uClibc
+endif
+UCLIBC_LDSO := $(UCLIBC_LDSO_NAME).so.$(MAJOR_VERSION)
+NONSHARED_LIBNAME := uclibc_nonshared.a
+libc := $(top_builddir)lib/$(SHARED_MAJORNAME)
+interp := $(top_builddir)lib/interp.os
+ldso := $(top_builddir)lib/$(UCLIBC_LDSO)
+headers_dep := $(top_builddir)include/bits/sysnum.h
+
+#LIBS :=$(interp) -L$(top_builddir)lib -lc
+LIBS := $(interp) -L$(top_builddir)lib $(libc:.$(MAJOR_VERSION)=)
# Make sure DESTDIR and PREFIX can be used to install
# PREFIX is a uClibcism while DESTDIR is a common GNUism
PREFIX = $(DESTDIR)
endif
-# Pull in the user's uClibc configuration
-ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
--include $(TOPDIR).config
+ifneq ($(HAVE_SHARED),y)
+libc :=
+interp :=
+ldso :=
endif
ifndef CROSS
SHELL_SET_X=set +x
endif
-# Make certain these contain a final "/", but no "//"s.
-TARGET_ARCH:=$(shell grep -s ^TARGET_ARCH $(TOPDIR)/.config | sed -e 's/^TARGET_ARCH=//' -e 's/"//g')
-RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(RUNTIME_PREFIX))))))
-DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(DEVEL_PREFIX))))))
-KERNEL_SOURCE:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(KERNEL_SOURCE))))))
-export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_SOURCE
-
ARFLAGS:=cr
OPTIMIZATION:=
PIEFLAG_NAME:=-fPIE
# Some nice CPU specific optimizations
-ifeq ($(strip $(TARGET_ARCH)),i386)
+ifeq ($(TARGET_ARCH),i386)
OPTIMIZATION+=$(call check_gcc,-mpreferred-stack-boundary=2,)
OPTIMIZATION+=$(call check_gcc,-falign-jumps=0 -falign-loops=0,-malign-jumps=0 -malign-loops=0)
CPU_CFLAGS-$(CONFIG_386)+=-march=i386
CPU_CFLAGS-$(CONFIG_NEHEMIAH)+=$(call check_gcc,-march=c3-2,-march=i686)
endif
-ifeq ($(strip $(TARGET_ARCH)),sparc)
+ifeq ($(TARGET_ARCH),sparc)
CPU_CFLAGS-$(CONFIG_SPARC_V7)+=-mcpu=v7
CPU_CFLAGS-$(CONFIG_SPARC_V8)+=-mcpu=v8
CPU_CFLAGS-$(CONFIG_SPARC_V9)+=-mcpu=v9
CPU_CFLAGS-$(CONFIG_SPARC_V9B)+=$(call check_gcc,-mcpu=v9b,-mcpu=ultrasparc)
endif
-ifeq ($(strip $(TARGET_ARCH)),arm)
+ifeq ($(TARGET_ARCH),arm)
OPTIMIZATION+=-fstrict-aliasing
CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
CPU_CFLAGS-$(CONFIG_GENERIC_ARM)+=
CPU_CFLAGS-$(CONFIG_ARM610)+=-mtune=arm610 -march=armv3
CPU_CFLAGS-$(CONFIG_ARM710)+=-mtune=arm710 -march=armv3
+ CPU_CFLAGS-$(CONFIG_ARM7TDMI)+=-mtune=arm7tdmi -march=armv4
CPU_CFLAGS-$(CONFIG_ARM720T)+=-mtune=arm7tdmi -march=armv4
CPU_CFLAGS-$(CONFIG_ARM920T)+=-mtune=arm9tdmi -march=armv4
CPU_CFLAGS-$(CONFIG_ARM922T)+=-mtune=arm9tdmi -march=armv4
CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv4 -Wa,-mcpu=xscale
endif
-ifeq ($(strip $(TARGET_ARCH)),mips)
+ifeq ($(TARGET_ARCH),mips)
+ CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
+ CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
CPU_CFLAGS-$(CONFIG_MIPS_ISA_2)+=-mips2 -mtune=mips2
CPU_CFLAGS-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
endif
-ifeq ($(strip $(TARGET_ARCH)),sh)
+ifeq ($(TARGET_ARCH),nios)
+ CPU_LDFLAGS-y+=-m32
+ CPU_CFLAGS-y+=-m32
+endif
+
+ifeq ($(TARGET_ARCH),sh)
OPTIMIZATION+=-fstrict-aliasing
OPTIMIZATION+= $(call check_gcc,-mprefergot,)
CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
endif
endif
-ifeq ($(strip $(TARGET_ARCH)),sh64)
+ifeq ($(TARGET_ARCH),sh64)
OPTIMIZATION+=-fstrict-aliasing
CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):=-EL
CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):=-EB
CPU_CFLAGS-$(CONFIG_SH5)+=-m5-32media
endif
-ifeq ($(strip $(TARGET_ARCH)),h8300)
+ifeq ($(TARGET_ARCH),h8300)
CPU_LDFLAGS-$(CONFIG_H8300H)+= -ms8300h
CPU_LDFLAGS-$(CONFIG_H8S) += -ms8300s
- CPU_CFLAGS-$(CONFIG_H8300H) += -mh -mint32 -fsigned-char
- CPU_CFLAGS-$(CONFIG_H8S) += -ms -mint32 -fsigned-char
+ CPU_CFLAGS-$(CONFIG_H8300H) += -mh -mint32
+ CPU_CFLAGS-$(CONFIG_H8S) += -ms -mint32
endif
-ifeq ($(strip $(TARGET_ARCH)),cris)
+ifeq ($(TARGET_ARCH),cris)
CPU_LDFLAGS-$(CONFIG_CRIS)+=-mcrislinux
CPU_CFLAGS-$(CONFIG_CRIS)+=-mlinux
PICFLAG:=-fpic
PIEFLAG_NAME:=-fpie
endif
-ifeq ($(strip $(TARGET_ARCH)),powerpc)
+ifeq ($(TARGET_ARCH),powerpc)
# PowerPC can hold 8192 entries in its GOT with -fpic which is more than
# enough. Therefore use -fpic which will reduce code size and generates
# faster code.
PIEFLAG_NAME:=-fpie
endif
-ifeq ($(strip $(TARGET_ARCH)),frv)
+ifeq ($(TARGET_ARCH),bfin)
+ # This should also work, but why bother ? ;)
+ #PICFLAG:=-fPIC -mid-shared-library
+ PICFLAG:=-fpic
+endif
+
+ifeq ($(TARGET_ARCH),frv)
CPU_LDFLAGS-$(CONFIG_FRV)+=-melf32frvfd
CPU_CFLAGS-$(CONFIG_FRV)+=-mfdpic
# Using -pie causes the program to have an interpreter, which is
# Add a bunch of extra pedantic annoyingly strict checks
XWARNINGS=$(subst ",, $(strip $(WARNINGS))) -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
+ifeq ($(EXTRA_WARNINGS),y)
+XWARNINGS+=-Wnested-externs -Wshadow -Wmissing-noreturn -Wmissing-format-attribute -Wformat=2
+XWARNINGS+=-Wmissing-prototypes -Wmissing-declarations
+# works only w/ gcc-3.4 and up, can't be checked for gcc-3.x w/ check_gcc()
+#XWARNINGS+=-Wdeclaration-after-statement
+endif
XARCH_CFLAGS=$(subst ",, $(strip $(ARCH_CFLAGS)))
CPU_CFLAGS=$(subst ",, $(strip $(CPU_CFLAGS-y)))
+SSP_DISABLE_FLAGS ?= $(call check_gcc,-fno-stack-protector,)
+ifeq ($(UCLIBC_BUILD_SSP),y)
+SSP_CFLAGS := $(call check_gcc,-fno-stack-protector-all,)
+SSP_CFLAGS += $(call check_gcc,-fstack-protector,)
+SSP_ALL_CFLAGS ?= $(call check_gcc,-fstack-protector-all,)
+else
+SSP_CFLAGS := $(SSP_DISABLE_FLAGS)
+endif
+
+# Some nice CFLAGS to work with
+CFLAGS := -include $(top_builddir)include/libc-symbols.h \
+ $(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
+ -fno-builtin -nostdinc -I$(top_builddir)include -I.
+
LDADD_LIBFLOAT=
ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y)
-# Add -msoft-float to the CPU_FLAGS since ldso and libdl ignore CFLAGS.
# If -msoft-float isn't supported, we want an error anyway.
# Hmm... might need to revisit this for arm since it has 2 different
# soft float encodings.
- CPU_CFLAGS += -msoft-float
-ifeq ($(strip $(TARGET_ARCH)),arm)
+ifneq ($(TARGET_ARCH),nios)
+ifneq ($(TARGET_ARCH),nios2)
+CFLAGS += -msoft-float
+endif
+endif
+ifeq ($(TARGET_ARCH),arm)
# No longer needed with current toolchains, but leave it here for now.
# If anyone is actually still using gcc 2.95 (say), they can uncomment it.
# LDADD_LIBFLOAT=-lfloat
endif
endif
-SSP_DISABLE_FLAGS?=$(call check_gcc,-fno-stack-protector,)
-ifeq ($(UCLIBC_BUILD_SSP),y)
-SSP_CFLAGS:=$(call check_gcc,-fno-stack-protector-all,)
-SSP_CFLAGS+=$(call check_gcc,-fstack-protector,)
-SSP_ALL_CFLAGS?=$(call check_gcc,-fstack-protector-all,)
-else
-SSP_CFLAGS:=$(SSP_DISABLE_FLAGS)
+# Make sure "char" behavior is the same everywhere
+CFLAGS += -fsigned-char
+
+# We need this to be checked within libc-symbols.h
+ifneq ($(HAVE_SHARED),y)
+CFLAGS += -DSTATIC
endif
-# Some nice CFLAGS to work with
-CFLAGS:=$(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
- -fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.
-LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc -z defs
+# only i386 is known to work if compile.S gets -D__ASSEMBLER__
+#CFLAGS += $(call check_gcc,-std=c99,)
+
+LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
+
+ifeq ($(UCLIBC_BUILD_RELRO),y)
+LDFLAGS_NOSTRIP+=-z relro
+endif
+ifeq ($(UCLIBC_BUILD_NOW),y)
+LDFLAGS_NOSTRIP+=-z now
+endif
+
+LDFLAGS:=$(LDFLAGS_NOSTRIP) -z defs
ifeq ($(DODEBUG),y)
#CFLAGS += -g3
CFLAGS += -O0 -g3
- LDFLAGS := $(LDFLAGS_NOSTRIP)
STRIPTOOL:= true -Since_we_are_debugging
else
CFLAGS += $(OPTIMIZATION) $(XARCH_CFLAGS)
- LDFLAGS := $(LDFLAGS_NOSTRIP) -s
+ LDFLAGS += -s
endif
ifeq ($(DOMULTI),y)
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
PTNAME := nptl
else
+ifeq ($(LINUXTHREADS_OLD),y)
+ PTNAME := linuxthreads.old
+else
PTNAME := linuxthreads
endif
-PTDIR := $(TOPDIR)libpthread/$(PTNAME)
+endif
+PTDIR := $(top_builddir)libpthread/$(PTNAME)
# set up system dependencies include dirs (NOTE: order matters!)
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
-PTINC:= -I$(PTDIR)/compat \
+PTINC:= -I$(PTDIR) \
+ -I$(PTDIR)/compat \
-I$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH) \
-I$(PTDIR)/sysdeps/$(TARGET_ARCH) \
-I$(PTDIR)/sysdeps/unix/sysv/linux \
-I$(PTDIR)/sysdeps/pthread \
-I$(PTDIR)/sysdeps/pthread/bits \
-I$(PTDIR)/sysdeps/generic \
+ -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) \
+ -I$(top_srcdir)ldso/include \
-include $(PTDIR)/compat/libc-symbols.h
#
# Test for TLS if NPTL support was selected.
@exit 1;
endif
else
-PTINC:= -I$(PTDIR)/sysdeps/$(TARGET_ARCH) \
- -I$(PTDIR)/sysdeps/pthread
+PTINC := \
+ -I$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH) \
+ -I$(PTDIR)/sysdeps/$(TARGET_ARCH) \
+ -I$(PTDIR)/sysdeps/unix/sysv/linux \
+ -I$(PTDIR)/sysdeps/pthread \
+ -I$(PTDIR) \
+ -I$(top_builddir)libpthread
endif
CFLAGS+=$(PTINC)
-endif
-
-ifeq ($(UCLIBC_BUILD_RELRO),y)
-LDFLAGS+=-z relro
-endif
-
-ifeq ($(UCLIBC_BUILD_NOW),y)
-LDFLAGS+=-z now
+else
+ PTNAME :=
+ PTINC :=
endif
# Sigh, some stupid versions of gcc can't seem to cope with '-iwithprefix include'
CFLAGS+=-DNDEBUG
endif
+# moved from ldso/{ldso,libdl}
+# BEWARE!!! At least mips* will die if -O0 is used!!!
+ifeq ($(TARGET_ARCH),mips)
+CFLAGS:=$(CFLAGS:-O0=-O1)
+endif
+
# Keep the check_as from being needlessly executed
ifndef ASFLAGS_NOEXEC
ifeq ($(UCLIBC_BUILD_NOEXECSTACK),y)
LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name)
LIBGCC_DIR:=$(dir $(LIBGCC))
+# moved from libpthread/linuxthreads
+ifeq ($(UCLIBC_CTOR_DTOR),y)
+SHARED_START_FILES:=$(top_builddir)lib/crti.o $(LIBGCC_DIR)crtbeginS.o
+SHARED_END_FILES:=$(LIBGCC_DIR)crtendS.o $(top_builddir)lib/crtn.o
+endif
+
########################################
#
# uClinux shared lib support
export LIBID FLTFLAGS
SHARED_TARGET = lib/libc
endif
-
-TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
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