t-avr

Mac OS X 10.4.9 for x86 Source Code gcc 实现源代码

LIB1ASMSRC = avr/libgcc.S
LIB1ASMFUNCS = \
	_mulqi3 \
	_mulhi3 \
	_mulsi3 \
	_udivmodqi4 \
	_divmodqi4 \
	_udivmodhi4 \
	_divmodhi4 \
	_udivmodsi4 \
	_divmodsi4 \
	_prologue \
	_epilogue \
	_exit \
	_cleanup \
	_tablejump \
	_copy_data \
	_clear_bss \
	_ctors \
	_dtors

# We do not have the DF type.
# Most of the C functions in libgcc2 use almost all registers,
# so use -mcall-prologues for smaller code size.
TARGET_LIBGCC2_CFLAGS = -DDF=SF -Dinhibit_libc -mcall-prologues

fp-bit.c: $(srcdir)/config/fp-bit.c $(srcdir)/config/avr/t-avr
	echo '#define FLOAT' > fp-bit.c
	echo '#define FLOAT_ONLY' >> fp-bit.c
	echo '#define CMPtype QItype' >> fp-bit.c
	echo '#define DF SF' >> fp-bit.c
	echo '#define DI SI' >> fp-bit.c
	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> fp-bit.c
	echo '#define SMALL_MACHINE' >> fp-bit.c
	echo 'typedef int QItype __attribute__ ((mode (QI)));' >> fp-bit.c
	cat $(srcdir)/config/fp-bit.c >> fp-bit.c

FPBIT = fp-bit.c

MULTILIB_OPTIONS = mmcu=avr2/mmcu=avr3/mmcu=avr4/mmcu=avr5
MULTILIB_DIRNAMES = avr2 avr3 avr4 avr5

# The many avr2 matches are not listed here - this is the default.
MULTILIB_MATCHES = \
	mmcu?avr3=mmcu?atmega103 mmcu?avr3=mmcu?atmega603 \
	mmcu?avr3=mmcu?at43usb320 mmcu?avr3=mmcu?at43usb355 \
	mmcu?avr3=mmcu?at76c711 \
	mmcu?avr4=mmcu?atmega8515 mmcu?avr4=mmcu?atmega8535 \
	mmcu?avr4=mmcu?atmega8 mmcu?avr4=mmcu?atmega48 \
	mmcu?avr4=mmcu?atmega88 \
	mmcu?avr5=mmcu?atmega161 mmcu?avr5=mmcu?atmega162 \
	mmcu?avr5=mmcu?atmega163 mmcu?avr5=mmcu?atmega169 \
	mmcu?avr5=mmcu?atmega16 mmcu?avr5=mmcu?atmega168 \
	mmcu?avr5=mmcu?atmega165 \
	mmcu?avr5=mmcu?atmega323 mmcu?avr5=mmcu?atmega32 \
	mmcu?avr5=mmcu?atmega325 mmcu?avr5=mmcu?atmega3250 \
	mmcu?avr5=mmcu?atmega64  mmcu?avr5=mmcu?atmega128 \
	mmcu?avr5=mmcu?atmega645 mmcu?avr5=mmcu?atmega6450 \
	mmcu?avr5=mmcu?at94k mmcu?avr5=mmcu?at90can128

MULTILIB_EXCEPTIONS =

LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib