# defs.mips - MIPS specific definitions for the GNU toolchain
#
# modification history
# --------------------
# 01r,17oct11,mze  fix for WIND00312198
# 01q,16jul10,mze  add -fno-zero-initialized-in-bss to CC_COMPILER
# 01p,11feb10,pch  support for VSB link options, e.g. small footprint:  Specify
#		   endianness with LDFLAGS_ENDIAN and LD_PARTIAL_FLAGS_ENDIAN
#		   instead of setting LDFLAGS and LD_PARTIAL_FLAGS directly.
# 01o,25jun08,pee  VSB.
# 01n,11jun07,pes  Remove workarounds
# 01m,18may07,pes  Switch to n32 builds.
# 01l,24apr07,pes  Temporarily force all 32-bit builds to be soft float and
#		   64-bit builds to be hard float.
# 01k,24apr07,pes  Add temporary workaround for -mips32r2 library path
#		   problem.
# 01j,19apr07,pes  Temporary workaround for incorrect operation on -mips64 and
#		   -mips64r2 library searches.
# 01i,20feb07,pes  Add options to support new lib structure.
# 01h,04mar05,pes  Remove options for r3k
# 01g,05may04,pes  Fixing compile flag used for gnu for MIPS64.
# 01f,07nov03,c_c  Removed GNULIBROOT define.
# 01e,26mar02,pes  Revert to MIPS ISA III. Clean up -mno-branch-likely
#		   selection.
# 01d,19mar02,dat  Adding PIC flags for bootInit.o (72825)
# 01c,12feb02,sn   removed obsolete refs to GCC_EXEC_PREFIX
#		   removed -fno-for-scope
# 01b,21jan02,sn   removed unused C++_TEMPLATE_INST
# 01a,09jan02,pes   written
#
# DESCRIPTION
# This file contains MIPS specific definitions and flags for the
# GNU tools (compiler, assembler, linker etc.)
#
# NOTE
# The file name comes from defs.$(VX_CPU_FAMILY)
#

include $(TGT_DIR)/h/tool/gnu/defs.gnu
include $(TGT_DIR)/h/tool/common/defs.mips

CC_OPTIM_XO = -O2 
CC_OPTIM_DEBUG =

CC_OPTIM_DRIVER	= $(CC_OPTIM_DEBUG) -O -fvolatile
CC_OPTIM_NORMAL	= $(CC_OPTIM_DEBUG) $(CC_OPTIM_XO)
CC_OPTIM_TARGET	= $(CC_OPTIM_DEBUG) $(CC_OPTIM_XO)

# Compiler flags for PIC code
# For T2.2, used only for MIPS gnu compiler.
CC_PIC		= $(OPTION_PIC)

CC_COMPILER	= -ansi -fno-builtin -fno-zero-initialized-in-bss
C++_COMPILER	+= -fno-builtin -fno-zero-initialized-in-bss

LONGCALL	= -mlong-calls

# override/modify standard command definitions
AS		+= -G 0
RANLIB		= ranlibmips

# Build up architecture specification
#  Set initial value
CC_ARCH_SPEC	= -G 0 -mno-branch-likely

#
# Modify CC_ARCH_SPEC for processor ISA level and endianness
#
# select processor ISA
#

# Libraries supported
#  MIPS32 (deprecated, use MIPSI2)
#  MIPS64 (deprecated, use MIPSI3)
#  MIPSI2
#  MIPSI32
#  MIPSI32R2
#  MIPSI3
#  MIPSI64
#  MIPSI64R2
#

# Deprecated, use MIPSI2/MIPSI3
#
ifeq ($(findstring MIPS32,$(CPU)),MIPS32)
CC_ARCH_SPEC	+= -mips2
AS		+= -mips2
else
 ifeq ($(findstring MIPS64,$(CPU)),MIPS64)
 CC_ARCH_SPEC	+= -mips3 -mabi=n32 -mgp64
 AS		+= -mips3 -mabi=n32 -mgp64
 endif
endif

# Defined carefully, since MIPSI64 is a substring of
# MIPSI64R2, etc.

ifeq ($(findstring MIPSI2,$(CPU)),MIPSI2)
 CC_ARCH_SPEC		+= -mips2 -mgp32
 AS			+= -mips2 -mgp32
else
 ifeq ($(findstring MIPSI32R2,$(CPU)),MIPSI32R2)
  CC_ARCH_SPEC		+= -mips32r2 -mgp32
  AS			+= -mips32r2 -mgp32
 else
  ifeq ($(findstring MIPSI32,$(CPU)),MIPSI32)
   CC_ARCH_SPEC		+= -mips32 -mgp32
   AS			+= -mips32 -mgp32
  else
   ifeq  ($(findstring MIPSI3,$(CPU)),MIPSI3)
    CC_ARCH_SPEC	+= -mips3 -mabi=n32 -mgp64
    AS			+= -mips3 -mabi=n32 -mgp64
   else
    ifeq  ($(findstring MIPSI64R2,$(CPU)),MIPSI64R2)
     CC_ARCH_SPEC	+= -mips64 -Wa,-mips64r2 -mabi=n32 -mgp64
     AS			+= -mips64 -Wa,-mips64r2 -mabi=n32 -mgp64
    else
     ifeq ($(findstring MIPSI64,$(CPU)),MIPSI64)
      CC_ARCH_SPEC	+= -mips64 -mabi=n32 -mgp64
      AS		+= -mips64 -mabi=n32 -mgp64
     endif #MIPSI64
    endif #MIPSI64R2
   endif #MIPSI32
  endif #MIPSI32R2
 endif #MIPSI3
endif #MIPSI2

# select endianness
ifeq ($(_WRS_CONFIG_ENDIAN),little)
CC_ARCH_SPEC		+= -EL
AS			+= -EL
LDFLAGS_ENDIAN		 = -EL
LD_PARTIAL_FLAGS_ENDIAN  = -EL
else
CC_ARCH_SPEC		+= -EB
AS			+= -EB
LDFLAGS_ENDIAN		 = -EB
LD_PARTIAL_FLAGS_ENDIAN  = -EB
endif

# check for software floating point request
ifeq ($(_WRS_CONFIG_FP),soft)
CC_SOFT_FLOAT	= -msoft-float
endif

# end of defs.mips