t-rtems

linux下的gcc编译器

# Multilibs for powerpc RTEMS targets.

MULTILIB_OPTIONS	= \
mcpu=403/mcpu=505/mcpu=601/mcpu=602/mcpu=603/mcpu=603e/mcpu=604/mcpu=750/mcpu=821/mcpu=860 \
Dmpc509/Dmpc8260 \
D_OLD_EXCEPTIONS \
msoft-float

MULTILIB_DIRNAMES	= \
m403 m505 m601 m602 m603 m603e m604 m750 m821 m860 \
mpc509 \
mpc8260 \
roe \
nof

MULTILIB_EXTRA_OPTS	= mrelocatable-lib mno-eabi mstrict-align

# MULTILIB_MATCHES	= ${MULTILIB_MATCHES_FLOAT}
MULTILIB_MATCHES  	= ${MULTILIB_MATCHES_ENDIAN} \
			  ${MULTILIB_MATCHES_SYSV} \
			  mcpu?505/Dmpc505=mcpu?505/Dmpc509

#
# RTEMS old/new-exceptions handling
#
# old-exception processing is depredicated, therefore
#
# * Cpu-variants supporting new exception processing are build 
# with new exception processing only
# * Cpu-variants not having been ported to new exception processing are
# build with old and new exception processing
#

# Cpu-variants supporting new exception processing only
MULTILIB_NEW_EXCEPTIONS_ONLY = \
*mcpu=604*/*D_OLD_EXCEPTIONS* \
*mcpu=750*/*D_OLD_EXCEPTIONS* \
*mcpu=821*/*D_OLD_EXCEPTIONS* \
*Dmpc8260*/*D_OLD_EXCEPTIONS* \
*mcpu=860*/*D_OLD_EXCEPTIONS*

# Soft-float only, default implies msoft-float
# NOTE: Must match with MULTILIB_MATCHES_FLOAT and MULTILIB_MATCHES
MULTILIB_SOFTFLOAT_ONLY = \
mcpu=403/*msoft-float* \
mcpu=821/*msoft-float* \
mcpu=860/*msoft-float*

# Hard-float only, take out msoft-float
MULTILIB_HARDFLOAT_ONLY = \
mcpu=505/*msoft-float*

MULTILIB_EXCEPTIONS =

# Disallow -D_OLD_EXCEPTIONS without other options
MULTILIB_EXCEPTIONS	+= D_OLD_EXCEPTIONS*

# Disallow -Dppc and -Dmpc without other options
MULTILIB_EXCEPTIONS 	+= Dppc* Dmpc*

MULTILIB_EXCEPTIONS	+= \
${MULTILIB_NEW_EXCEPTIONS_ONLY} \
${MULTILIB_SOFTFLOAT_ONLY} \
${MULTILIB_HARDFLOAT_ONLY}

# Special rules
# Take out all variants we don't want
MULTILIB_EXCEPTIONS += mcpu=403/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=403/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=505/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=505/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=601/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=601/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=602/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=602/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=603/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=603/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=603e/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=604/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=604/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=750/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=750/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=821/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=821/Dmpc8260*
MULTILIB_EXCEPTIONS += mcpu=860/Dmpc509*
MULTILIB_EXCEPTIONS += mcpu=860/Dmpc8260*