mips: Change target and multilib options

Author: AleksejZhmulin

mips.in

@@ -1,2 +1,2 @@
-TARGET=mips-elf
+TARGET=mips-mti-elf
 TARGET_OPTIONS= 

patches/mips/t-mti-elf.patch

@@ -0,0 +1,32 @@
+--- gcc-13.2.0/gcc/config/mips/t-mti-elf	2023-07-27 11:13:04.000000000 +0300
++++ gcc-13.2.0/gcc/config/mips/t-mti-elf-new	2024-04-06 05:57:41.083277145 +0300
+@@ -19,8 +19,8 @@
+ # The default build is mips32r2, hard-float big-endian.  Add mips32,
+ # soft-float, and little-endian variations.
+ 
+-MULTILIB_OPTIONS = mips32/mips64/mips64r2 mips16/mmicromips mabi=64 EL msoft-float mnan=2008
+-MULTILIB_DIRNAMES = mips32 mips64 mips64r2 mips16 micromips 64 el sof nan2008
++MULTILIB_OPTIONS = mips32/mips32r6/mips64/mips64r2/mips64r6 mabi=64 EL msoft-float
++MULTILIB_DIRNAMES = mips32 mips32r6 mips64 mips64r2 mips64r6 64 el sof
+ MULTILIB_MATCHES = EL=mel EB=meb mips32r2=mips32r3 mips32r2=mips32r5 mips64r2=mips64r3 mips64r2=mips64r5
+ 
+ # The 64 bit ABI is not supported on the mips32 architecture.
+@@ -32,17 +32,4 @@
+ # architecture flag instead.
+ MULTILIB_EXCEPTIONS += mabi=64*
+ 
+-# We do not want to build mips16 versions of mips64* architectures.
+-MULTILIB_EXCEPTIONS += *mips64*/*mips16*
+-MULTILIB_EXCEPTIONS += *mips16/mabi=64*
+-
+-# We only want micromips for mips32r2 architecture.
+-MULTILIB_EXCEPTIONS += *mips32/mmicromips*
+-MULTILIB_EXCEPTIONS += *mips64*/mmicromips*
+-MULTILIB_EXCEPTIONS += *mmicromips/mabi=64*
+-
+-# We do not want nan2008 libraries for soft-float,
+-# mips32[r1], or mips64[r1].
+-MULTILIB_EXCEPTIONS += *msoft-float*/*mnan=2008*
+-MULTILIB_EXCEPTIONS += *mips32/*mnan=2008*
+-MULTILIB_EXCEPTIONS += *mips64/*mnan=2008*
++MULTILIB_EXCLUSIONS += mips64/!mabi=64 mips64r2/!mabi=64 mips64r6/!mabi=64