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[oweals/openwrt.git] / toolchain / Config.in
1 # Copyright (C) 2006-2013 OpenWrt.org
2 #
3 # This is free software, licensed under the GNU General Public License v2.
4 # See /LICENSE for more information.
5 #
6
7 menuconfig TARGET_OPTIONS
8         bool "Target Options"  if DEVEL
9
10         config TARGET_OPTIMIZATION
11                 string "Target Optimizations" if TARGET_OPTIONS
12                 default DEFAULT_TARGET_OPTIMIZATION
13                 help
14                   Optimizations to use when building for the target host.
15
16         config SOFT_FLOAT
17                 bool "Use software floating point by default" if TARGET_OPTIONS
18                 default y if !HAS_FPU
19                 depends on arm || armeb || powerpc || mipsel || mips || mips64el || mips64
20                 help
21                   If your target CPU does not have a Floating Point Unit (FPU) or a
22                   kernel FPU emulator, but you still wish to support floating point
23                   functions, then everything will need to be compiled with soft floating
24                   point support (-msoft-float).
25
26                   Most people will answer N.
27
28         config USE_MIPS16
29                 bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
30                 depends on HAS_MIPS16
31                 default y
32                 help
33                   If your target CPU does support the MIPS16 instruction set
34                   and you want to use it for packages, enable this option.
35                   MIPS16 produces smaller binaries thus reducing pressure on
36                   caches and TLB.
37
38                   Most people will answer N.
39
40
41 menuconfig EXTERNAL_TOOLCHAIN
42         bool
43         prompt "Use external toolchain"  if DEVEL
44         help
45           If enabled, LEDE will compile using an existing toolchain instead of
46           compiling one.
47
48         config NATIVE_TOOLCHAIN
49                 bool
50                 prompt "Use host's toolchain"  if DEVEL
51                 depends on EXTERNAL_TOOLCHAIN
52                 select NO_STRIP
53                 help
54                   If enabled, LEDE will compile using the native toolchain for your
55                   host instead of compiling one.
56
57         config TARGET_NAME
58                 string
59                 prompt "Target name"  if DEVEL
60                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
61                 default "aarch64-unknown-linux-gnu"  if aarch64
62                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
63                 default "arm-unknown-linux-gnu"      if arm
64                 default "armeb-unknown-linux-gnu"    if armeb
65                 default "i486-unknown-linux-gnu"     if i386
66                 default "mips-unknown-linux-gnu"     if mips
67                 default "mipsel-unknown-linux-gnu"   if mipsel
68                 default "powerpc-unknown-linux-gnu"  if powerpc
69                 default "x86_64-unknown-linux-gnu"   if x86_64
70
71         config TOOLCHAIN_PREFIX
72                 string
73                 prompt "Toolchain prefix"  if DEVEL
74                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
75                 default "aarch64-unknown-linux-gnu"  if aarch64
76                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
77                 default "arm-unknown-linux-gnu-"      if arm
78                 default "armeb-unknown-linux-gnu-"    if armeb
79                 default "i486-unknown-linux-gnu-"     if i386
80                 default "mips-unknown-linux-gnu-"     if mips
81                 default "mipsel-unknown-linux-gnu-"   if mipsel
82                 default "powerpc-unknown-linux-gnu-"  if powerpc
83                 default "x86_64-unknown-linux-gnu-"   if x86_64
84
85         config TOOLCHAIN_ROOT
86                 string
87                 prompt "Toolchain root"  if DEVEL
88                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
89                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
90                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
91                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
92                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
93                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
94                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
95                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
96                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
97                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
98
99         choice TOOLCHAIN_LIBC_TYPE
100                 prompt "Toolchain libc"  if DEVEL
101                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
102                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
103                 help
104                   Specify the libc type used by the external toolchain. The given value
105                   is passed as -m flag to all gcc and g++ invocations. This is mainly
106                   intended for multilib toolchains which support glibc and uclibc at
107                   the same time. If no value is specified, no -m flag is passed.
108
109                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
110                         bool "glibc"
111                         select USE_GLIBC
112
113                 config EXTERNAL_TOOLCHAIN_LIBC_USE_UCLIBC
114                         bool "uClibc"
115                         select USE_UCLIBC
116                         depends on !(aarch64 || aarch64_be)
117
118                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
119                         bool "musl"
120                         select USE_MUSL
121
122         endchoice
123
124         config TOOLCHAIN_LIBC
125                 string
126                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
127                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
128                 default "uclibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_UCLIBC
129                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
130
131         config TOOLCHAIN_BIN_PATH
132                 string
133                 prompt "Toolchain program path"  if DEVEL
134                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
135                 default "./usr/bin ./bin"
136                 help
137                   Specify additional directories searched for toolchain binaries
138                   (override PATH). Use ./DIR for directories relative to the root above.
139
140         config TOOLCHAIN_INC_PATH
141                 string
142                 prompt "Toolchain include path"  if DEVEL
143                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
144                 default "./usr/include ./include"
145                 help
146                   Specify additional directories searched for header files (override
147                   CPPFLAGS). Use ./DIR for directories relative to the root above.
148
149         config TOOLCHAIN_LIB_PATH
150                 string
151                 prompt "Toolchain library path"  if DEVEL
152                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
153                 default "./usr/lib ./lib"
154                 help
155                   Specify additional directories searched for libraries (override LDFLAGS).
156                   Use ./DIR for directories relative to the root above.
157
158 config NEED_TOOLCHAIN
159         bool
160         depends on DEVEL
161         default y if !EXTERNAL_TOOLCHAIN
162
163 menuconfig TOOLCHAINOPTS
164         bool "Toolchain Options"  if DEVEL
165         depends on NEED_TOOLCHAIN
166
167 menuconfig EXTRA_TARGET_ARCH
168         bool
169         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
170         depends on !sparc
171         default y       if powerpc64
172         default n
173         help
174           Some builds may require a 'biarch' toolchain. This option
175           allows you to specify an additional target arch.
176
177           Most people will answer N here.
178
179         config EXTRA_TARGET_ARCH_NAME
180                 string
181                 default "powerpc64"     if powerpc64
182                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
183                 help
184                   Specify the cpu name (eg powerpc64 or x86_64) of the
185                   additional target architecture.
186
187         config EXTRA_TARGET_ARCH_OPTS
188                 string
189                 default "-m64"          if powerpc64
190                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
191                 help
192                   If you're specifying an addition target architecture,
193                   you'll probably need to also provide options to make
194                   the compiler use this alternate arch.
195
196                   For example, if you're building a compiler that can build
197                   both powerpc and powerpc64 binaries, you'll need to
198                   specify -m64 here.
199
200
201         choice
202                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
203                 default MIPS64_ABI_N64
204                 help
205                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
206                    n32 and n64.
207
208                 config MIPS64_ABI_N64
209                         bool "n64"
210
211                 config MIPS64_ABI_N32
212                         depends on !LIBC_USE_MUSL
213                         bool "n32"
214
215                 config MIPS64_ABI_O32
216                         bool "o32"
217
218         endchoice
219
220 comment "Binary tools"
221         depends on TOOLCHAINOPTS
222
223 source "toolchain/binutils/Config.in"
224
225 comment "Compiler"
226         depends on TOOLCHAINOPTS
227
228 source "toolchain/gcc/Config.in"
229
230 config YASM
231         bool
232         depends on ( i386 || x86_64 )
233         prompt "Build yasm" if TOOLCHAINOPTS
234         default y
235         help
236           Enable if you want to build yasm
237
238 comment "C Library"
239         depends on TOOLCHAINOPTS
240
241 choice
242         prompt "C Library implementation" if TOOLCHAINOPTS
243         default LIBC_USE_UCLIBC if arc
244         default LIBC_USE_MUSL
245         help
246           Select the C library implementation.
247
248         config LIBC_USE_GLIBC
249                 bool "Use glibc"
250                 select USE_GLIBC
251                 depends on !arc
252
253         config LIBC_USE_UCLIBC
254                 select USE_UCLIBC
255                 bool "Use uClibc"
256                 depends on !(aarch64 || aarch64_be)
257                 depends on BROKEN || !(arm || armeb || i386 || x86_64 || mips || mipsel || mips64 || mips64el || powerpc)
258
259         config LIBC_USE_MUSL
260                 select USE_MUSL
261                 bool "Use musl"
262                 depends on !(arc)
263
264 endchoice
265
266 source "toolchain/uClibc/Config.in"
267
268 comment "Debuggers"
269         depends on TOOLCHAINOPTS
270
271 config GDB
272         bool
273         depends on !(aarch64 || aarch64_be)
274         prompt "Build gdb" if TOOLCHAINOPTS
275         default y if !EXTERNAL_TOOLCHAIN
276         help
277           Enable if you want to build the gdb.
278
279 config USE_GLIBC
280         bool
281
282 config USE_UCLIBC
283         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
284         bool
285
286 config USE_MUSL
287         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
288         bool
289
290 config USE_EXTERNAL_LIBC
291         bool
292         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
293
294 source "toolchain/binutils/Config.version"
295 source "toolchain/gcc/Config.version"
296
297 config LIBC
298         string
299         default "glibc"   if USE_GLIBC
300         default "uClibc"  if USE_UCLIBC
301         default "musl"    if USE_MUSL
302
303 config TARGET_SUFFIX
304         string
305         default "gnueabi"         if USE_GLIBC && (arm || armeb)
306         default "gnu"             if USE_GLIBC && !(arm || armeb)
307         default "uclibcgnueabi"   if USE_UCLIBC && (arm || armeb)
308         default "uclibc"          if USE_UCLIBC && !(arm || armeb)
309         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
310         default "musl"            if USE_MUSL && !(arm || armeb)
311
312 config MIPS64_ABI
313         depends on mips64 || mips64el
314         string
315         default "64" if MIPS64_ABI_N64
316         default "n32" if MIPS64_ABI_N32
317         default "32" if MIPS64_ABI_O32
318         default "64"