use soft float by default on arm and powerpc
[openwrt/svn-archive/archive.git] / toolchain / Config.in
1 #
2 config NATIVE_TOOLCHAIN
3 bool
4 prompt "Use host's toolchain" if DEVEL && BROKEN
5 default n
6 help
7 If enabled, OpenWrt will compile using your existing toolchain instead of compiling one
8
9 menuconfig TOOLCHAINOPTS
10 bool "Toolchain Options" if DEVEL
11 depends !NATIVE_TOOLCHAIN
12
13 source "toolchain/binutils/Config.in"
14 source "toolchain/gcc/Config.in"
15
16 config GDB
17 bool
18 prompt "Build gdb" if TOOLCHAINOPTS
19 default n
20 help
21 Enable if you want to build the gdb
22
23 config LARGEFILE
24 bool
25 prompt "Enable large file (files > 2 GB) support?" if TOOLCHAINOPTS
26 default y
27 help
28 Enable large file (files > 2 GB) support
29
30 config C99_MATH
31 bool
32 prompt "Enable full C99 math support?" if TOOLCHAINOPTS
33 default n
34 help
35 Enable if you need full C99 math in libm
36
37 config SOFT_FLOAT
38 bool
39 prompt "Use software floating point by default" if TOOLCHAINOPTS
40 default y
41 depends on arm || armeb || powerpc
42 help
43 If your target CPU does not have a Floating Point Unit (FPU) or a
44 kernel FPU emulator, but you still wish to support floating point
45 functions, then everything will need to be compiled with soft floating
46 point support (-msoft-float).
47
48 Most people will answer N.
49
50 config TARGET_OPTIMIZATION
51 string
52 prompt "Target Optimizations" if TOOLCHAINOPTS
53 default "-O2 -pipe -march=i686 -funit-at-a-time" if TARGET_x86_mediacenter
54 default "-O2 -pipe -march=i486 -funit-at-a-time" if TARGET_x86
55 default "-Os -pipe -march=i486 -funit-at-a-time" if TARGET_rdc
56 default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" if mipsel || mips
57 default "-Os -pipe -march=armv5te -mtune=xscale -funit-at-a-time" if armeb
58 default "-Os -pipe -funit-at-a-time"
59 help
60 Optimizations to use when building for the target host.
61
62 source "toolchain/gcc/Config.version"