[Buildroot] How to build MIPS cross compiler
Shinya Kuribayashi
skuribay at ruby.dti.ne.jp
Sat Feb 23 19:36:54 PST 2008
Kai Moritz wrote:
> Mile Davidovic schrieb:
>> Hello,
>> I am trying to build MIPS based toolchain, but unfortunately I got
>> error with unsupported ABI.
>>
> Hi Mile,
>
> I have the same problem.
> I have tried out all available combinations of mips and ABI.
> None of them worked...
>
> Bernhard Fischer (rep.dot.nop at gmail.com) send me a link to his personal
> git-Branch of buildroot, which is slightly older than trunk from svn.
> That branch worked for me.
> But I do not know, if it will be merged back into trunk, or when...
Here's the workable patch suggested by Elizabeth Oldham[1], back in Oct
2007. Bernhard also posted a patch[2], but that didn't work due to
`--with-abi=o32' for OABI. Do we need --with-abi=32, instead?
^
Bernhard, Elizabeth, do you have any time to fix this up?
Shinya
[1] http://buildroot.uclibc.org/lists/buildroot/2007-October/005742.html
[2] http://buildroot.uclibc.org/lists/buildroot/2007-October/005743.html
Index: target/Config.in.arch
===================================================================
--- target/Config.in.arch (revision 21094)
+++ target/Config.in.arch (working copy)
@@ -148,24 +148,25 @@
bool "mips 32r2"
config BR2_mips_64
bool "mips 64"
-config BR2_mips_16
- bool "mips 16"
+config BR2_mips_64r2
+ bool "mips 64r2"
endchoice
choice
prompt "Target ABI"
depends BR2_mips || BR2_mipsel
- default BR2_MIPS_EABI
+ default BR_mips_ABI_O32 if BR_mips_32 || BR_mips_32r2
+ default BR_mips_ABI_N32 if BR_mips_64 || BR_mips_64r2
help
Application Binary Interface to use
-config BR2_MIPS_OABI
- bool "OABI"
-config BR2_MIPS_EABI
- bool "EABI"
-config BR2_MIPS_ABI64
- bool "N64"
+config BR2_MIPS_ABI_O32
+ bool "o32"
+config BR2_MIPS_ABI_N32
+ bool "n32"
+config BR2_MIPS_ABI_N64
+ bool "n64"
endchoice
choice
@@ -589,7 +590,7 @@
default mips32 if BR2_mips_32
default mips32r2 if BR2_mips_32r2
default mips64 if BR2_mips_64
- default mips16 if BR2_mips_16
+ default mips64r2 if BR2_mips_64r2
default 401 if BR2_powerpc_401
default 403 if BR2_powerpc_403
default 405 if BR2_powerpc_405
@@ -689,11 +690,9 @@
default aapcs if BR2_arm_dunno
default aapcs-linux if BR2_arm_dunno
default iwmmxt if BR2_iwmmxt
- default 32 if BR2_mipsel && BR2_MIPS_OABI
- default n32 if BR2_mipsel && BR2_MIPS_EABI
- default o64 if BR2_mips && BR2_MIPS_OABI
- default eabi if BR2_mips && BR2_MIPS_EABI
- default 64 if BR2_mips && BR2_MIPS_ABI64
+ default 32 if BR2_MIPS_ABI_O32
+ default n32 if BR2_MIPS_ABI_N32
+ default 64 if BR2_MIPS_ABI_N64
default mmixware if BR2_mmix && BR2_MMIX_ABI_native
default gnu if BR2_mmix && !BR2_MMIX_ABI_native
default altivec if BR2_powerpc && BR2_PPC_ABI_altivec
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