[toolchain] introduce a USE_EXTERNAL_LIBC symbol which gets selected by EXTERNAL_TOOL...
[openwrt.git] / toolchain / Config.in
1 #
2
3 menuconfig EXTERNAL_TOOLCHAIN
4         bool
5         prompt "Use external toolchain"  if DEVEL
6         help
7           If enabled, OpenWrt will compile using an existing toolchain instead of compiling one
8
9         config NATIVE_TOOLCHAIN
10                 bool
11                 prompt "Use host's toolchain"  if DEVEL
12                 depends EXTERNAL_TOOLCHAIN
13                 select NO_STRIP
14                 help
15                   If enabled, OpenWrt will compile using the native toolchain for your host instead of compiling one
16
17         config TARGET_NAME
18                 string
19                 prompt "Target name"  if DEVEL
20                 depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
21                 default "arm-unknown-linux-gnu"      if arm
22                 default "armeb-unknown-linux-gnu"    if armeb
23                 default "i486-unknown-linux-gnu"     if i386
24                 default "mips-unknown-linux-gnu"     if mips
25                 default "mipsel-unknown-linux-gnu"   if mipsel
26                 default "powerpc-unknown-linux-gnu"  if powerpc
27                 default "x86_64-unknown-linux-gnu"   if x86_64
28
29         config TOOLCHAIN_PREFIX
30                 string
31                 prompt "Toolchain prefix"  if DEVEL
32                 depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
33                 default "arm-unknown-linux-gnu-"      if arm
34                 default "armeb-unknown-linux-gnu-"    if armeb
35                 default "i486-unknown-linux-gnu-"     if i386
36                 default "mips-unknown-linux-gnu-"     if mips
37                 default "mipsel-unknown-linux-gnu-"   if mipsel
38                 default "powerpc-unknown-linux-gnu-"  if powerpc
39                 default "x86_64-unknown-linux-gnu-"   if x86_64
40
41         config TOOLCHAIN_ROOT
42                 string
43                 prompt "Toolchain root"  if DEVEL
44                 depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
45                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
46                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
47                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
48                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
49                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
50                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
51                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
52
53         config TOOLCHAIN_BIN_PATH
54                 string
55                 prompt "Toolchain program path"  if DEVEL
56                 depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
57                 default "./usr/bin ./bin"
58                 help
59                   Specify additional directories searched for toolchain binaries (override PATH)
60                   Use ./DIR for directories relative to the root above
61
62         config TOOLCHAIN_INC_PATH
63                 string
64                 prompt "Toolchain include path"  if DEVEL
65                 depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
66                 default "./usr/include ./include"
67                 help
68                   Specify additional directories searched for header files (override CPPFLAGS)
69                   Use ./DIR for directories relative to the root above
70
71         config TOOLCHAIN_LIB_PATH
72                 string
73                 prompt "Toolchain library path"  if DEVEL
74                 depends EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
75                 default "./usr/lib ./lib"
76                 help
77                   Specify additional directories searched for libraries (override LDFLAGS)
78                   Use ./DIR for directories relative to the root above
79
80 config NEED_TOOLCHAIN
81         bool
82         depends DEVEL
83         default y if !EXTERNAL_TOOLCHAIN
84
85 menuconfig TOOLCHAINOPTS
86         bool "Toolchain Options"  if DEVEL
87         depends NEED_TOOLCHAIN
88
89 menuconfig EXTRA_TARGET_ARCH
90         bool
91         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
92         depends !sparc
93         default y       if powerpc64
94         default n
95         help
96           Some builds may require a 'biarch' toolchain. This option
97           allows you to specify an additional target arch.
98
99           Most people will answer N here.
100
101         config EXTRA_TARGET_ARCH_NAME
102                 string
103                 default "powerpc64"     if powerpc64
104                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
105                 help
106                   Specify the cpu name (eg powerpc64 or x86_64) of the
107                   additional target architecture.
108
109         config EXTRA_TARGET_ARCH_OPTS
110                 string
111                 default "-m64"          if powerpc64
112                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
113                 help
114                   If you're specifying an addition target architecture,
115                   you'll probably need to also provide options to make
116                   the compiler use this alternate arch.
117
118                   For example, if you're building a compiler that can build
119                   both powerpc and powerpc64 binaries, you'll need to
120                   specify -m64 here.
121
122 comment "Binary tools"
123         depends TOOLCHAINOPTS
124
125 source "toolchain/binutils/Config.in"
126
127 comment "Compiler"
128         depends TOOLCHAINOPTS
129
130 source "toolchain/gcc/Config.in"
131
132 comment "C Library"
133         depends TOOLCHAINOPTS
134
135 choice
136         prompt "C Library implementation" if TOOLCHAINOPTS
137         default USE_UCLIBC
138         help
139           Select the C library implementation.
140
141         config USE_EGLIBC
142                 bool "Use eglibc"
143                 depends !avr32
144         
145         config USE_GLIBC
146                 bool "Use glibc"
147                 depends !avr32
148         
149         config USE_UCLIBC
150                 bool "Use uClibc"
151
152 endchoice
153
154 source "toolchain/eglibc/Config.in"
155 source "toolchain/glibc/Config.in"
156 source "toolchain/uClibc/Config.in"
157
158 comment "Debuggers"
159         depends TOOLCHAINOPTS
160
161 config GDB
162         bool
163         prompt "Build gdb" if TOOLCHAINOPTS
164         default n
165         help
166                 Enable if you want to build the gdb
167
168 config INSIGHT
169         bool
170         prompt "Build insight-gdb" if TOOLCHAINOPTS
171         select GDB
172         default n
173         help
174                 Enable if you want to build insight-gdb
175
176 config USE_UCLIBC
177         bool
178         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
179
180 config USE_EXTERNAL_LIBC
181         bool
182         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
183
184 source "toolchain/gcc/Config.version"
185
186 source "toolchain/eglibc/Config.version"
187 source "toolchain/glibc/Config.version"
188 source "toolchain/uClibc/Config.version"
189
190 config LIBC
191         string
192         default "eglibc"  if USE_EGLIBC
193         default "glibc"   if USE_GLIBC
194         default "uClibc"  if USE_UCLIBC
195
196 config LIBC_VERSION
197         string
198         default EGLIBC_VERSION  if USE_EGLIBC
199         default GLIBC_VERSION   if USE_GLIBC
200         default UCLIBC_VERSION  if USE_UCLIBC
201
202 config TARGET_SUFFIX
203         string
204         default "gnueabi"         if (USE_EGLIBC || USE_GLIBC) && (arm || armeb)
205         default "gnu"             if (USE_EGLIBC || USE_GLIBC) && !(arm || armeb)
206         default "uclibcgnueabi"   if USE_UCLIBC && (arm || armeb)
207         default "uclibc"          if USE_UCLIBC && !(arm || armeb)