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authorManuel Novoa III <mjn3@codepoet.org>2003-11-16 16:26:35 +0000
committerManuel Novoa III <mjn3@codepoet.org>2003-11-16 16:26:35 +0000
commitf6552f749d672154866d7b82f4edba2321b80b97 (patch)
tree590c3506a00e4bedb174726a46da25b9a5954035
parent9f77c8c4934538ef7bc6964d8a7e6ac0945c8447 (diff)
Patch from Jeffrey Baitis <baitisj@evolution.com> for mips arch tuning.
-rw-r--r--Rules.mak9
-rw-r--r--extra/Configs/Config.mips36
2 files changed, 45 insertions, 0 deletions
diff --git a/Rules.mak b/Rules.mak
index eeb0a8d15..1b7b9fc3a 100644
--- a/Rules.mak
+++ b/Rules.mak
@@ -127,6 +127,15 @@ ifeq ($(strip $(TARGET_ARCH)),arm)
CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv4 -Wa,-mcpu=xscale
endif
+ifeq ($(strip $(TARGET_ARCH)),mips)
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_2)+=-mips2 -mtune=mips2
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_4)+=-mips4 -mtune=mips4
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32)+=-mips32 -mtune=mips32
+ CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
+endif
+
ifeq ($(strip $(TARGET_ARCH)),sh)
OPTIMIZATION+=-fstrict-aliasing
OPTIMIZATION+= $(call check_gcc,-mprefergot,)
diff --git a/extra/Configs/Config.mips b/extra/Configs/Config.mips
index 777c23869..273e8743d 100644
--- a/extra/Configs/Config.mips
+++ b/extra/Configs/Config.mips
@@ -20,3 +20,39 @@ config ARCH_LDFLAGS
config LIBGCC_CFLAGS
string
+choice
+ prompt "Target Processor Architecture"
+ default CONFIG_MIPS_ISA_1
+ help
+ This selects the instruction set architecture of your MIPS CPU. This
+ information is used for optimizing purposes. To build a library that
+ will run on any MIPS CPU, you can specify "Generic (MIPS I)" here.
+ If you pick anything other than "Generic (MIPS I)," there is no
+ guarantee that uClibc will even run on anything other than the
+ selected processor type.
+
+ You should probably select the MIPS ISA that best matches the
+ CPU you will be using on your device. uClibc will be tuned
+ for that architecture.
+
+ If you don't know what to do, choose "Generic (MIPS I)"
+
+config CONFIG_MIPS_ISA_1
+ bool "Generic (MIPS I)"
+
+config CONFIG_MIPS_ISA_2
+ bool "MIPS II"
+
+config CONFIG_MIPS_ISA_3
+ bool "MIPS III"
+
+config CONFIG_MIPS_ISA_4
+ bool "MIPS IV"
+
+config CONFIG_MIPS_ISA_MIPS32
+ bool "MIPS32"
+
+config CONFIG_MIPS_ISA_MIPS64
+ bool "MIPS64"
+
+endchoice