# Library Configuration rules for uClibc for CRIS (Axis Etrax CPU) # # This file contains rules which are shared between multiple Makefiles. Feel # free to adjust to taste... # -Erik Andersen <andersen@lineo.com> <andersee@debian.org> # # Copyright (C) 2000 by Lineo, inc. # (C) 2002 by Axis Communications AB # # 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. # # 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 # # Derived in part from the Linux-8086 C library, the GNU C Library, and several # other sundry sources. Files within this library are copyright by their # respective copyright holders. # Target architecture TARGET_ARCH = cris # Target specific things to add to CFLAGS ARCH_CFLAGS = -fpic -mlinux -D__USE_WEAK_ALIASES # Target specific things to add to LDFLAGS ARCH_LDFLAGS = -mcrislinux # Target specific optins needed when asking $(CROSS)gcc about libgcc.a LIBGCC_CFLAGS = -mlinux # If you are running a cross compiler, you may want to set this # to something more interesting... NATIVE_CC = gcc CROSS = cris- CC = $(CROSS)gcc AR = $(CROSS)ar LD = $(CROSS)ld STRIPTOOL = $(CROSS)strip # STRIPTOOL = /bin/true # Compiler warnings you want to see WARNINGS=-Wall # Note that the kernel source you use to compile with should be the same as the # Linux kernel you run your apps on. uClibc doesn't even try to achieve binary # compatibility across kernel versions. So don't expect, for example, uClibc # compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x # can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers, # but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't # work at all. You have been warned. KERNEL_SOURCE=$(AXIS_KERNEL_DIR) # Disable this if your CPU has a memory management unit (MMU) HAS_MMU = true # Set this to 'false' if basic floating support isn't needed in # libc (strtod, printf, scanf). It this isn't true, libm will no # be built HAS_FLOATING_POINT = true # Set to 'true' if the math library should contain the full C99 math # functions. This adds a few K's.. DO_C99_MATH = false # Set this to `false' if you don't have/need doubles. This primarily # effects libm, which gets quite a bit larger, but also effects several # other places. Set it to `true' otherwise. HAS_DOUBLE = false # Set this to `false' if you don't have/need long doubles. This primarily # effects libm, which gets quite a bit larger. Set it to `true' otherwise. HAS_LONG_DOUBLE = false # Set this to 'false if you don't need shadow password support. HAS_SHADOW = false # Set this to `false' if you don't have/need locale support; `true' otherwise. # Note: Currently only affects the ctype functions. You must also generate # a locale file for anything but the C locale. See directory extra/locale for # a utility to do so. Also see the following option. HAS_LOCALE = false # Set this to the path of your uClibc locale file directory. # Warning! This must be different than the glibc locale directory to avoid # name conflicts, as the locale files are entirely different in format! LOCALE_DIR = "/usr/share/uClibc-locale/" # Set the following to `true' to make a debuggable build. # Do not enable this for production builds... DODEBUG = false # This specifies which malloc implementation is used. # "malloc-simple" is very, very small, but is also very, very dumb # and does not try to make good use of memory or clean up after itself. # # "malloc" on the other hand is a bit bigger, but is pretty smart thereby # minimizing memory wastage and reusing already allocated memory. This # can be lots faster and safer IMHO. # # "malloc-930716" is from libc-5.3.12 and was/is the standard gnu malloc. # It is actually smaller than "malloc", at least on i386. Right now, it # only works on i386 (and maybe m68k) because it needs sbrk. #MALLOC = malloc-simple #MALLOC = malloc MALLOC = malloc-930716 # If you want to collect common syscall code into one function, set to # true. On i386 this saves about than 2.8k over all syscalls. # The idea came from the implementation in dietlibc. # At present, only affects i386. UNIFIED_SYSCALL = false # If you want large file summit support (greater then 2 Gib), # turn this on. This has no effect unless your kernel supports # lfs. This currently does nothing, but may someday... DOLFS = false # Posix regular expression code is really big -- 27k all by itself. # If you don't use regular expressions, turn this off and save space. # Of course, if you only staticly link, leave this on, since it will # only be included in your apps if you use regular expressions. INCLUDE_REGEX = true # If you want to include RPC support, enable this. RPC is almost never used # for anything except NFS support, so unless you plan to use NFS, leave this # disabled. This is off by default. INCLUDE_RPC = true # If you want to include threads support, enable this. The C library will # be compiled thread-safe, and the libpthread library will be built. INCLUDE_THREADS = true # If you want to include support for the next version of the Internet # Protocol: IP version 6, enable this. This is off by default. INCLUDE_IPV6 = false # If you want to support only Unix 98 PTYs enable this. Some older # applications may need this disabled. For most current programs, # you can generally leave this true. UNIX98PTY_ONLY = true # Enable this if /dev/pts is on a devpts or devfs file system. Both # these filesystems automatically manage permissions on the /dev/pts # devices. You may need to mount this fs on /dev/pts for this to work. # This is true by default. ASSUME_DEVPTS = true # If you want to compile the library as PIC code, turn this on. # This is automagically enabled when HAVE_SHARED is true DOPIC = false # Enable support for shared libraries? If this is false, you can # ignore all the rest of the options in this file... HAVE_SHARED = true # uClibc has a native shared library loader for some architectures. BUILD_UCLIBC_LDSO=true # If you are using shared libraries, but do not want/have a native # uClibc shared library loader, please specify the name of your # system's shared library loader here... # #SYSTEM_LDSO=/lib/ld.so.1 # When using shared libraries, this path is the location where the # shared library will be invoked. This value will be compiled into # every binary compiled with uClibc. # # BIG FAT WARNING: # If you do not have a shared library loader with the correct name # sitting in the directory this points to, your binaries will not run. SHARED_LIB_LOADER_PATH=$(DEVEL_PREFIX)/lib # DEVEL_PREFIX is the directory into which the uClibc development # environment will be installed. The result will look something # like the following: # DEVEL_PREFIX/ # bin/ <contains gcc, ld, etc> # lib/ <contains all runtime and static libs> # include/ <Where all the header files go> # This value is used by the 'make install' Makefile target. Since this # directory is compiled into the uclibc cross compiler spoofer, you # have to recompile if you change this value... #DEVEL_PREFIX = /usr/$(TARGET_ARCH)-linux-uclibc ifdef prefix DEVEL_PREFIX = $(prefix) else ifdef AXIS_TOP_DIR DEVEL_PREFIX = $(AXIS_TOP_DIR)/target/cris-axis-linux-gnuuclibc else DEVEL_PREFIX = $(EROOT) endif endif # SYSTEM_DEVEL_PREFIX is the directory prefix used when installing # bin/arch-uclibc-gcc, bin/arch-uclibc-ld, etc. This is only used by # the 'make install' target, and is not compiled into anything. This # defaults to $DEVEL_PREFIX/usr, but makers of .rpms and .debs will # want to set this to "/usr" instead. # SYSTEM_DEVEL_PREFIX = $(DEVEL_PREFIX)/lib # If you want 'make install' to install everything under a temporary # directory, the define PREFIX during the install step, # i.e., 'make PREFIX=/var/tmp/uClibc install'. #PREFIX = $(TOPDIR)/_install