cb9cadad57
Change-Id: Ib246f1fbfce93274020ee93ce461e3d8bd8b9f17 Signed-off-by: Ed Warnicke <eaw@cisco.com>
130 lines
3.8 KiB
Plaintext
130 lines
3.8 KiB
Plaintext
# Copyright (c) 2001, 2002 Eliot Dresselhaus
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# Basic toolchain defines.
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CC = $(CROSS_COMPILE)gcc
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LD = $(CROSS_COMPILE)ld
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AR = $(CROSS_COMPILE)ar
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RANLIB = $(CROSS_COMPILE)ranlib
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INSTALL = install
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ifneq ($(origin CROSS_COMPILE), undefined)
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IS_CROSS_COMPILE=yes
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endif
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CLIB_ARCH = $(shell $(CC) -dumpmachine)
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# Where to get linux kernel includes.
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# By default get linux includes from /usr/include/linux...
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KERNEL_PREFIX ?= /usr
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# Where to find compiler include directory (since we may
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# be using -nostdinc).
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CC_PREFIX = $(shell dirname `$(CC) --print-libgcc-file-name`)
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# Where to get LIBC includes for cross compiles
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LIBC_PREFIX ?= $(CC_PREFIX)/../../../../$(CLIB_ARCH)
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# Where to find CLIB includes/libraries for cross compiles
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CLIB_PREFIX ?= /usr/local/$(CLIB_ARCH)
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OBJ = $(CLIB_ARCH).o
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SHARED_OBJ = shared.$(OBJ)
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KERNEL_OBJ = kernel.$(OBJ)
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MODULE_OBJ = module.$(OBJ)
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DEP = $(CLIB_ARCH).d
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SHARED_DEP = shared.$(DEP)
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KERNEL_DEP = kernel.$(DEP)
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STATIC_LIB = $(CLIB_ARCH).a
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SHARED_LIB = $(CLIB_ARCH).so
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KERNEL_LIB = kernel.$(CLIB_ARCH).a
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STATIC_CFLAGS = $(DEFAULT_CFLAGS)
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SHARED_CFLAGS = $(STATIC_CFLAGS) -fPIC
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# Compile flags common to user/kernel
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CLIB_COMMON_CFLAGS += -Wall
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DEBUG ?= no
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ifeq ($(DEBUG),yes)
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COPTS ?= -g -O0
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CLIB_COMMON_CFLAGS += -DDEBUG
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else
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COPTS ?= -O2
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endif
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CLIB_COMMON_CFLAGS += $(COPTS)
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CLIB_USER_CFLAGS = $(CLIB_COMMON_CFLAGS)
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ifeq ($(IS_CROSS_COMPILE),yes)
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CLIB_USER_CFLAGS += -nostdinc
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CLIB_USER_CFLAGS += -idirafter $(CC_PREFIX)/include
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CLIB_USER_CFLAGS += -idirafter $(KERNEL_PREFIX)/include
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CLIB_USER_CFLAGS += -idirafter $(LIBC_PREFIX)/include
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CLIB_COMMON_CFLAGS += -idirafter $(CLIB_PREFIX)/include
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endif
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STATIC_CFLAGS = $(CLIB_USER_CFLAGS)
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SHARED_CFLAGS = $(STATIC_CFLAGS) -fPIC
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%.$(SHARED_OBJ): %.c
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$(CC) -c $(SHARED_CFLAGS) -o $@ $<
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%.$(OBJ): %.c
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$(CC) -c $(STATIC_CFLAGS) -o $@ $<
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# Kernel version of clib
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CLIB_KERNEL_CFLAGS = $(CLIB_COMMON_CFLAGS)
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CLIB_KERNEL_CFLAGS += -nostdinc
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CLIB_KERNEL_CFLAGS += -idirafter $(CC_PREFIX)/include
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CLIB_KERNEL_CFLAGS += -idirafter $(KERNEL_PREFIX)/include
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# Kernel always uses mheap allocator (no malloc)
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CLIB_KERNEL_CFLAGS += -DCLIB_MEM_MHEAP
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CLIB_KERNEL_CFLAGS += -D__KERNEL__ -DMODULE -DEXPORT_SYMTAB
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CLIB_KERNEL_CFLAGS += -fno-common -fomit-frame-pointer -fno-strict-aliasing
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ifeq ($(findstring mips,$(CLIB_ARCH)),mips)
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CLIB_KERNEL_CFLAGS += -G0 \
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-mno-abicalls -fno-pic -mlong-calls \
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-mcpu=r8000 -mips2 -Wa,--trap
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endif
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%.$(KERNEL_OBJ): %.c
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$(CC) $(CLIB_KERNEL_CFLAGS) -c -o $@ $<
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# Dependencies
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%.$(DEP): %.c
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$(CC) $(CLIB_USER_CFLAGS) -c -M $< | sed -e s/.o:/.$(OBJ):/ > $@
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%.$(SHARED_DEP): %.c
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$(CC) $(CLIB_USER_CFLAGS) -c -M $< | sed -e s/.o:/.$(SHARED_OBJ):/ > $@
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%.$(KERNEL_DEP): %.c
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$(CC) $(CLIB_KERNEL_CFLAGS) -c -M $< | sed -e s/.o:/.$(KERNEL_OBJ):/ > $@
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