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- LIB1ASMSRC = avr/lib1funcs.S
- LIB1ASMFUNCS = \
- _mulqi3 \
- _mulhi3 \
- _mulqihi3 _umulqihi3 \
- _mulpsi3 \
- _mulsi3 \
- _udivmodqi4 \
- _divmodqi4 \
- _udivmodhi4 \
- _divmodhi4 \
- _divmodpsi4 _udivmodpsi4 \
- _udivmodsi4 \
- _divmodsi4 \
- _negsi2 \
- _exit \
- _cleanup \
- _tablejump2 \
- _copy_data \
- _clear_bss \
- _ctors \
- _dtors \
- _ffssi2 \
- _ffshi2 \
- _loop_ffsqi2 \
- _ctzsi2 \
- _ctzhi2 \
- _clzsi2 \
- _clzhi2 \
- _paritysi2 \
- _parityhi2 \
- _popcounthi2 \
- _popcountsi2 \
- _popcountqi2 \
- _bswapsi2 \
- _fmul _fmuls _fmulsu
- # The below functions either use registers that are not present
- # in tiny core, or use a different register conventions (don't save
- # callee saved regs, for example)
- # _mulhisi3 and variations - clobber R18, R19
- # All *di funcs - use regs < R16 or expect args in regs < R20
- # _prologue and _epilogue save registers < R16
- # _load ad _xload variations - expect lpm and elpm support
- # _movmemx - expects elpm/lpm
- ifneq ($(MULTIFLAGS),-mmcu=avrtiny)
- LIB1ASMFUNCS += \
- _mulsqipsi3 \
- _mulhisi3 \
- _umulhisi3 \
- _usmulhisi3 \
- _muluhisi3 \
- _mulshisi3 \
- _muldi3 _muldi3_6 \
- _mulsidi3 _umulsidi3 \
- _divdi3 _udivdi3 \
- _udivmod64 \
- _negdi2 \
- _prologue \
- _epilogue \
- _load_3 _load_4 \
- _xload_1 _xload_2 _xload_3 _xload_4 \
- _movmemx \
- _clzdi2 \
- _paritydi2 \
- _popcountdi2 \
- _bswapdi2 \
- _ashldi3 _ashrdi3 _lshrdi3 _rotldi3 \
- _adddi3 _adddi3_s8 _subdi3 \
- _cmpdi2 _cmpdi2_s8
- endif
- # Fixed point routines in avr/lib1funcs-fixed.S
- ifneq ($(MULTIFLAGS),-mmcu=avrtiny)
- LIB1ASMFUNCS += \
- _fractqqsf _fractuqqsf \
- _fracthqsf _fractuhqsf _fracthasf _fractuhasf \
- _fractsasf _fractusasf _fractsqsf _fractusqsf \
- \
- _fractsfqq _fractsfuqq \
- _fractsfhq _fractsfuhq _fractsfha _fractsfuha \
- _fractsfsq _fractsfusq _fractsfsa _fractsfusa \
- _mulqq3 \
- _mulhq3 _muluhq3 \
- _mulha3 _muluha3 _muluha3_round \
- _mulsa3 _mulusa3 \
- _usmuluha3 _ssmulha3 \
- _usmulusa3 _ssmulsa3 \
- _divqq3 _udivuqq3 _divqq_helper \
- _divhq3 _udivuhq3 \
- _divha3 _udivuha3 \
- _divsa3 _udivusa3 \
- _clr_8 \
- _ssneg_2 _ssneg_4 _ssneg_8 \
- _ssabs_1 _ssabs_2 _ssabs_4 _ssabs_8 \
- _ssadd_8 _sssub_8 \
- _usadd_8 _ussub_8 \
- _mask1 _ret \
- _roundqq3 _rounduqq3 \
- _round_s2 _round_u2 _round_2_const _addmask_2 \
- _round_s4 _round_u4 _round_4_const _addmask_4 \
- _round_x8 \
- _rounddq3 _roundudq3 \
- _roundda3 _rounduda3 \
- _roundta3 _rounduta3
- endif
- LIB2FUNCS_EXCLUDE = \
- _moddi3 _umoddi3 \
- _clz \
- _clrsbdi2 \
- ifeq ($(long_double_type_size),32)
- # We do not have the DFtype.
- HOST_LIBGCC2_CFLAGS += -DDF=SF
- endif
- # Most of the C functions in libgcc2 use almost all registers,
- # so use -mcall-prologues for smaller code size.
- HOST_LIBGCC2_CFLAGS += -Dinhibit_libc -mcall-prologues -Os
- # Extra 16-bit integer functions.
- intfuncs16 = _absvXX2 _addvXX3 _subvXX3 _mulvXX3 _negvXX2 _clrsbXX2
- hiintfuncs16 = $(subst XX,hi,$(intfuncs16))
- siintfuncs16 = $(subst XX,si,$(intfuncs16))
- iter-items := $(hiintfuncs16)
- iter-labels := $(siintfuncs16)
- iter-sizes := $(patsubst %,2,$(siintfuncs16)) $(patsubst %,2,$(hiintfuncs16))
- -include $(patsubst %,$(srcdir)/siditi-object.mk,$(iter-items))
- libgcc-objects += $(patsubst %,%$(objext),$(hiintfuncs16))
- ifeq ($(enable_shared),yes)
- libgcc-s-objects += $(patsubst %,%_s$(objext),$(hiintfuncs16))
- endif
- ###
- conv_XY=$(conv)$(mode1)$(mode2)
- func_X=$(func)$(mode)
- # Compile C functions from lib2funcs.c and add them to libgcc.a.
- #
- # Some functions which are not performance.critical are more convenient
- # to implement in C than in assembler. Most of them serve as implementation
- # for AVR-specific builtins in the case where the address of a builtin
- # function is taken or if there is no insn that implements the builtin.
- #
- # We don't use LIB2ADD because we want to iterate over the source for
- # different modes, fixed-point suffixes, etc. See iter-labels and L_LABEL.
- # iter-label will get one more underscore in order to avoid too short
- # labels like -DLk and we use -DL_k instead.
- # Build roundFX functions from lib2funcs.c
- round_suffix := hr r lr uhr ur ulr \
- hk k uhk uk
- round_funcs := $(foreach func,_round,\
- $(foreach mode,$(round_suffix),$(func_X)))
- iter-items := $(round_funcs)
- iter-labels := $(round_suffix)
- iter-flags := $(patsubst %,-DL_round,$(iter-items))
- -include $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
- libgcc-objects += $(patsubst %,%$(objext),$(round_funcs))
- # Build clrsbXX functions from lib2funcs.c
- clrsb_modes := qi di
- clrsb_funcs := $(foreach func,_clrsb,\
- $(foreach mode,$(clrsb_modes),$(func_X)))
- iter-items := $(clrsb_funcs)
- iter-labels := $(clrsb_funcs)
- iter-flags := $(patsubst %,-DL_clrsb,$(iter-items))
- -include $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
- libgcc-objects += $(patsubst %,%$(objext),$(clrsb_funcs))
- # Build signed countlsFX functions from lib2funcs.c
- countls_modes := qi hi si di
- countls_funcs := $(foreach func,_countls,\
- $(foreach mode,$(countls_modes),$(func_X)))
- iter-items := $(countls_funcs)
- iter-labels := $(countls_modes)
- iter-flags := $(patsubst %,-DL_countls,$(iter-items))
- -include $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
- libgcc-objects += $(patsubst %,%$(objext),$(countls_funcs))
- # Build unsigned countlsFX functions from lib2funcs.c
- countlsu_modes := qi hi si di
- countlsu_funcs := $(foreach func,_countlsu,\
- $(foreach mode,$(countlsu_modes),$(func_X)))
- iter-items := $(countlsu_funcs)
- iter-labels := $(countlsu_modes)
- iter-flags := $(patsubst %,-DL_countlsu,$(iter-items))
- -include $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
- libgcc-objects += $(patsubst %,%$(objext),$(countlsu_funcs))
- # Filter out supported conversions from fixed-bit.c
- # Also filter out TQ and UTQ.
- # Conversions supported by the compiler
- convf_modes = QI UQI QQ UQQ \
- HI UHI HQ UHQ HA UHA \
- SI USI SQ USQ SA USA \
- DI UDI DQ UDQ DA UDA \
- TI UTI TQ UTQ TA UTA
- LIB2FUNCS_EXCLUDE += \
- $(foreach conv,_fract _fractuns,\
- $(foreach mode1,$(convf_modes),\
- $(foreach mode2,$(convf_modes),$(conv_XY))))
- # Conversions supported by lib1funcs-fixed.S
- conv_to_sf_modes = QQ UQQ HQ UHQ HA UHA SQ USQ SA USA
- conv_from_sf_modes = QQ UQQ HQ UHQ HA UHA SA USA
- LIB2FUNCS_EXCLUDE += \
- $(foreach conv,_fract, \
- $(foreach mode1,$(conv_to_sf_modes), \
- $(foreach mode2,SF,$(conv_XY))))
- LIB2FUNCS_EXCLUDE += \
- $(foreach conv,_fract,\
- $(foreach mode1,SF,\
- $(foreach mode2,$(conv_from_sf_modes),$(conv_XY))))
- # Arithmetik supported by the compiler
- allfix_modes = QQ UQQ HQ UHQ HA UHA SQ USQ SA USA DA UDA DQ UDQ TQ UTQ TA UTA
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_add _sub,\
- $(foreach mode,$(allfix_modes),$(func_X)))
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_lshr _ashl _ashr _cmp,\
- $(foreach mode,$(allfix_modes),$(func_X)))
- usat_modes = UQQ UHQ UHA USQ USA UDQ UDA UTQ UTA
- ssat_modes = QQ HQ HA SQ SA DQ DA TQ TA
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_ssadd _sssub _ssneg _ssabs,\
- $(foreach mode,$(ssat_modes),$(func_X)))
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_usadd _ussub _usneg,\
- $(foreach mode,$(usat_modes),$(func_X)))
- smul_modes = QQ HQ HA SA
- umul_modes = UQQ UHQ UHA USA
- sdiv_modes = QQ HQ HA SA
- udiv_modes = UQQ UHQ UHA USA
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_mul,\
- $(foreach mode,$(smul_modes) $(umul_modes),$(func_X)))
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_div,\
- $(foreach mode,$(sdiv_modes) $(udiv_modes),$(func_X)))
- ssmul_modes = HA SA
- usmul_modes = UHA USA
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_usmul,\
- $(foreach mode,$(usmul_modes),$(func_X)))
- LIB2FUNCS_EXCLUDE += \
- $(foreach func,_ssmul,\
- $(foreach mode,$(ssmul_modes),$(func_X)))
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