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1 | # |
2 | # (C) Copyright 2000 | |
3 | # Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | # | |
5 | # See file CREDITS for list of people who contributed to this | |
6 | # project. | |
7 | # | |
8 | # This program is free software; you can redistribute it and/or | |
9 | # modify it under the terms of the GNU General Public License as | |
10 | # published by the Free Software Foundation; either version 2 of | |
11 | # the License, or (at your option) any later version. | |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | # GNU General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program; if not, write to the Free Software | |
20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | # MA 02111-1307 USA | |
22 | # | |
23 | ||
24 | ######################################################################### | |
25 | ||
26 | # | |
27 | # When cross-compiling on NetBSD, we have to define __PPC__ or else we | |
28 | # will pick up a va_list declaration that is incompatible with the | |
29 | # actual argument lists emitted by the compiler. | |
30 | # | |
31 | # [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] | |
32 | ||
33 | ifeq ($(ARCH),ppc) | |
34 | ifeq ($(CROSS_COMPILE),powerpc-netbsd-) | |
35 | PLATFORM_CPPFLAGS+= -D__PPC__ | |
36 | endif | |
37 | ifeq ($(CROSS_COMPILE),powerpc-openbsd-) | |
38 | PLATFORM_CPPFLAGS+= -D__PPC__ | |
39 | endif | |
40 | endif | |
41 | ||
42 | ifeq ($(ARCH),arm) | |
43 | ifeq ($(CROSS_COMPILE),powerpc-netbsd-) | |
44 | PLATFORM_CPPFLAGS+= -D__ARM__ | |
45 | endif | |
46 | ifeq ($(CROSS_COMPILE),powerpc-openbsd-) | |
47 | PLATFORM_CPPFLAGS+= -D__ARM__ | |
48 | endif | |
49 | endif | |
50 | ||
51 | ifdef ARCH | |
52 | sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules | |
53 | endif | |
54 | ifdef CPU | |
55 | sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules | |
56 | endif | |
57 | ifdef VENDOR | |
58 | BOARDDIR = $(VENDOR)/$(BOARD) | |
59 | else | |
60 | BOARDDIR = $(BOARD) | |
61 | endif | |
62 | ifdef BOARD | |
63 | sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules | |
64 | endif | |
65 | ||
66 | ######################################################################### | |
67 | ||
68 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | |
69 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | |
70 | else echo sh; fi ; fi) | |
71 | ||
72 | ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) | |
73 | HOSTCC = cc | |
74 | else | |
75 | HOSTCC = gcc | |
76 | endif | |
77 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer | |
78 | HOSTSTRIP = strip | |
79 | ||
80 | ######################################################################### | |
81 | ||
82 | # | |
83 | # Include the make variables (CC, etc...) | |
84 | # | |
85 | AS = $(CROSS_COMPILE)as | |
86 | LD = $(CROSS_COMPILE)ld | |
87 | CC = $(CROSS_COMPILE)gcc | |
88 | CPP = $(CC) -E | |
89 | AR = $(CROSS_COMPILE)ar | |
90 | NM = $(CROSS_COMPILE)nm | |
91 | STRIP = $(CROSS_COMPILE)strip | |
92 | OBJCOPY = $(CROSS_COMPILE)objcopy | |
93 | OBJDUMP = $(CROSS_COMPILE)objdump | |
94 | RANLIB = $(CROSS_COMPILE)RANLIB | |
95 | ||
96 | RELFLAGS= $(PLATFORM_RELFLAGS) | |
97 | DBGFLAGS= -g #-DDEBUG | |
98 | OPTFLAGS= -Os #-fomit-frame-pointer | |
99 | #LDSCRIPT := board/$(BOARDDIR)/u-boot.lds.debug | |
100 | LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds | |
101 | OBJCFLAGS := --gap-fill=0xff | |
102 | ||
103 | CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \ | |
104 | -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \ | |
105 | -I$(TOPDIR)/include \ | |
106 | -fno-builtin \ | |
107 | -pipe $(PLATFORM_CPPFLAGS) | |
108 | ||
109 | ifdef BUILD_TAG | |
110 | CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \ | |
111 | -DBUILD_TAG='"$(BUILD_TAG)"' | |
112 | else | |
113 | CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes | |
114 | endif | |
115 | ||
116 | AFLAGS_DEBUG := -Wa,-gstabs | |
117 | AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) | |
118 | ||
7f6c2cbc | 119 | LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS) |
e2211743 WD |
120 | |
121 | # Location of a usable BFD library, where we define "usable" as | |
122 | # "built for ${HOST}, supports ${TARGET}". Sensible values are | |
123 | # - When cross-compiling: the root of the cross-environment | |
124 | # - Linux/ppc (native): /usr | |
125 | # - NetBSD/ppc (native): you lose ... (must extract these from the | |
126 | # binutils build directory, plus the native and U-Boot include | |
127 | # files don't like each other) | |
128 | # | |
129 | # So far, this is used only by tools/gdb/Makefile. | |
130 | ||
131 | ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) | |
132 | BFD_ROOT_DIR = /usr/local/tools | |
133 | else | |
ea909b76 WD |
134 | ifeq ($(HOSTARCH),$(ARCH)) |
135 | # native | |
136 | BFD_ROOT_DIR = /usr | |
137 | else | |
e2211743 WD |
138 | #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386 |
139 | #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386 | |
e2211743 WD |
140 | BFD_ROOT_DIR = /opt/powerpc |
141 | endif | |
ea909b76 | 142 | endif |
e2211743 WD |
143 | |
144 | ######################################################################### | |
145 | ||
146 | export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \ | |
147 | AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \ | |
148 | MAKE | |
149 | export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS | |
150 | ||
151 | ######################################################################### | |
152 | ||
153 | %.s: %.S | |
154 | $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$< | |
155 | %.o: %.S | |
156 | $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$< | |
157 | %.o: %.c | |
158 | $(CC) $(CFLAGS) -c -o $@ $< | |
159 | ||
160 | ######################################################################### |