blob: 0493af179dae4dc552ab217b075b27b816c7b33c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
menu "architecture "
choice
prompt "cpu architecture"
default ARCH_X86
help
Specify which processor architecture you want to compile for.
config ARCH_ALPHA
bool "alpha "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_LITTLE
help
This is support for the Alpha processor architecture.
config ARCH_AVR
bool "avr 8 bit "
select ARCH_SUPPORTS_ENDIAN_LITTLE
help
This is support for the Atmel AVR processors.
Note: This covers the 8bit family only, they are not
intended to be used with Linux. Bare metall only.
config ARCH_ARM
bool "arm "
select ARCH_SUPPORTS_ENDIAN_LITTLE
select ARCH_SUPPORTS_ENDIAN_BIG
select HAS_MMU
help
This is support for the ARM processor architecture.
config ARCH_BLACKFIN
bool "blackfin "
select ARCH_SUPPORTS_ENDIAN_LITTLE
help
This is support for the blackfin processor.
config ARCH_X86
bool "x86 "
select HAS_MMU
select HAS_PCI
select ARCH_SUPPORTS_ENDIAN_LITTLE
help
This is support for the Intel x86 architecture.
config ARCH_MINGW
bool "mingw "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_LITTLE
help
This is support for the Intel x86 architecture.
config ARCH_PPC
bool "ppc "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the PowerPC architecture.
config ARCH_M68K
bool "m68k "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the Motorola/Freescale M68k architecture.
config ARCH_SPARC
bool "sparc "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the SPARC architecture.
config ARCH_MICROBLAZE
bool "microblaze "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the Xilinx MicroBlaze architecture (with MMU).
config ARCH_MIPS
bool "mips "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_LITTLE
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the MIPS architecture.
config ARCH_CRIS
bool "cris "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_LITTLE
help
This is support for the cris architecture.
config ARCH_PARISC
bool "parisc "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the parisc architecture.
config ARCH_SH
bool "superh "
select HAS_MMU
select ARCH_SUPPORTS_ENDIAN_LITTLE
select ARCH_SUPPORTS_ENDIAN_BIG
help
This is support for the SuperH architecture.
endchoice
#
# superh
#
choice
prompt "superh family "
depends on ARCH_SH
config ARCH_SH_SH3
bool "sh3 "
config ARCH_SH_SH4
bool "sh4 "
endchoice
#
# x86
#
choice
prompt "x86 optimization"
depends on ARCH_X86
default ARCH_X86_I586
config ARCH_X86_I386
bool "386 "
help
The compiler will generate code for i386 CPUs as default. This code will
run on almost all x86_32 processors.
config ARCH_X86_I486
bool "486 "
help
The compiler will generate code for i486 CPUs as default. This code will run
on almost all x86/ia32 processors, but not on i386!
config ARCH_X86_I586
bool "586 "
help
The compiler will generate code for i586 class CPUs as default (Pentium).
This code will run on almost all x86/ia32 processors, but not on i386 and i486!
config ARCH_X86_I686
bool "686 "
help
The compiler will generate code for i686 class CPUs as default (Pentium Pro).
This code will run on almost all x86/ia32 processors, but not on i386, i486 and pentium!
config ARCH_X86_P2
bool "PII "
help
The compiler will generate code for Pentium II CPUs as default.
This code will run on Pentium II and above CPUs.
config ARCH_X86_P3M
bool "PIII/M "
help
The compiler will generate code for Pentium III and Pentium M CPUs as default.
This code will run on Pentium III and above CPUs. Note: A Pentium M is a successor
of Pentium III (Pentium 4 is a dead end)
endchoice
#
# endianess
#
config ARCH_SUPPORTS_ENDIAN_BIG
bool
config ARCH_SUPPORTS_ENDIAN_LITTLE
bool
choice
prompt "endianess "
default ENDIAN_LITTLE
config ENDIAN_BIG
bool "big "
depends on ARCH_SUPPORTS_ENDIAN_BIG
config ENDIAN_LITTLE
bool "little "
depends on ARCH_SUPPORTS_ENDIAN_LITTLE
endchoice
#
# ARM Architecture Version
#
config ARCH_ARM_V6
bool "arm architecture version >= ARMv6"
depends on ARCH_ARM
help
This options enables optimisation for ARMv6 cores.
Select this if you have an arm processor with an
architecture version of ARMv6 or newer. Which is the case
for the ARM11 and Cortex A Cores.
config ARCH_ARM_IWMMXT
bool "support iwmmxt extension"
depends on ARCH_ARM
help
This enables the iwmmxt extension. This is present on some
but not all pxa processors.
config ARCH_ARM_NEON
bool "support NEON extension"
depends on ARCH_ARM
help
This enables the NEON extension. This is e.g. present on
Cortex A8 processors.
#
# hardware / software floating point
#
config HAS_HARDFLOAT
bool
prompt "hardware floating point"
default y if ARCH_ALPHA
default y if ARCH_X86
default y if ARCH_SPARC
default n
#
# PCI bus
#
config HAS_PCI
bool
prompt "pci support" if ARCH_PPC
#
# memory management unit
#
config HAS_MMU
bool
#
# sizeof long double
#
config SIZEOF_LONG_DOUBLE
string
default "12" if ARCH_X86
# default "16" if ARCH_X86_64
default "8"
# FIXME: add more values
#
# arch string
#
config ARCH_STRING
string
default "arm" if ARCH_ARM
default "avr" if ARCH_AVR
default "alpha" if ARCH_ALPHA
default "blackfin" if ARCH_BLACKFIN
default "i386" if ARCH_X86
default "i386" if ARCH_MINGW
default "m68k" if ARCH_M68K
default "ppc" if ARCH_PPC
default "sparc" if ARCH_SPARC
default "microblaze" if ARCH_MICROBLAZE
default "mips" if ARCH_MIPS
default "cris" if ARCH_CRIS
default "parisc" if ARCH_PARISC
default "sh" if ARCH_SH
# ----------------------------------------------------------------------------
source "generated/microblaze_options.in"
source "generated/architecture_options.in"
endmenu
|
