libgcc/config/avr/t-avr

   1 LIB1ASMSRC = avr/lib1funcs.S
   2 LIB1ASMFUNCS = \
   3         _mulqi3 \
   4         _mulhi3 \
   5         _mulqihi3 _umulqihi3 \
   6         _mulpsi3 _mulsqipsi3 \
   7         _mulhisi3 \
   8         _umulhisi3 \
   9         _usmulhisi3 \
  10         _muluhisi3 \
  11         _mulshisi3 \
  12         _mulsi3 \
  13         _udivmodqi4 \
  14         _divmodqi4 \
  15         _udivmodhi4 \
  16         _divmodhi4 \
  17         _divmodpsi4 _udivmodpsi4 \
  18         _udivmodsi4 \
  19         _divmodsi4 \
  20         _divdi3 _udivdi3 \
  21         _muldi3 \
  22         _udivmod64 \
  23         _negsi2 _negdi2 \
  24         _prologue \
  25         _epilogue \
  26         _exit \
  27         _cleanup \
  28         _tablejump \
  29         _tablejump_elpm \
  30         _load_3 _load_4 \
  31         _xload_1 _xload_2 _xload_3 _xload_4 \
  32         _movmemx \
  33         _copy_data \
  34         _clear_bss \
  35         _ctors \
  36         _dtors \
  37         _ffssi2 \
  38         _ffshi2 \
  39         _loop_ffsqi2 \
  40         _ctzsi2 \
  41         _ctzhi2 \
  42         _clzdi2 \
  43         _clzsi2 \
  44         _clzhi2 \
  45         _paritydi2 \
  46         _paritysi2 \
  47         _parityhi2 \
  48         _popcounthi2 \
  49         _popcountsi2 \
  50         _popcountdi2 \
  51         _popcountqi2 \
  52         _bswapsi2 \
  53         _bswapdi2 \
  54         _ashldi3 _ashrdi3 _lshrdi3 _rotldi3 \
  55         _adddi3 _adddi3_s8 _subdi3 \
  56         _cmpdi2 _cmpdi2_s8 \
  57         _fmul _fmuls _fmulsu
  58
  59 # Fixed point routines in avr/lib1funcs-fixed.S
  60 LIB1ASMFUNCS += \
  61         _fractqqsf _fractuqqsf \
  62         _fracthqsf _fractuhqsf _fracthasf _fractuhasf \
  63         _fractsasf _fractusasf _fractsqsf _fractusqsf \
  64         \
  65         _fractsfqq _fractsfuqq \
  66         _fractsfhq _fractsfuhq _fractsfha _fractsfuha \
  67         _fractsfsq _fractsfusq _fractsfsa _fractsfusa \
  68         _mulqq3 \
  69         _mulhq3 _muluhq3 \
  70         _mulha3 _muluha3 _muluha3_round \
  71         _mulsa3 _mulusa3 \
  72         _divqq3 _udivuqq3 _divqq_helper \
  73         _divhq3 _udivuhq3 \
  74         _divha3 _udivuha3 \
  75         _divsa3 _udivusa3 \
  76         _clr_8 \
  77         _ssneg_2 _ssneg_4 _ssneg_8 \
  78         _ssabs_1 _ssabs_2 _ssabs_4 _ssabs_8 \
  79         _ssadd_8 _sssub_8 \
  80         _usadd_8 _ussub_8 \
  81         _mask1 _ret \
  82         _roundqq3 _rounduqq3 \
  83         _round_s2 _round_u2 _round_2_const _addmask_2 \
  84         _round_s4 _round_u4 _round_4_const _addmask_4 \
  85         _round_x8 \
  86         _rounddq3 _roundudq3 \
  87         _roundda3 _rounduda3 \
  88         _roundta3 _rounduta3 \
  89
  90
  91 LIB2FUNCS_EXCLUDE = \
  92         _moddi3 _umoddi3 \
  93         _clz \
  94         _clrsbdi2 \
  95
  96
  97 # We do not have the DF type.
  98 # Most of the C functions in libgcc2 use almost all registers,
  99 # so use -mcall-prologues for smaller code size.
 100 HOST_LIBGCC2_CFLAGS += -DDF=SF -Dinhibit_libc -mcall-prologues -Os
 101
 102 # Extra 16-bit integer functions.
 103 intfuncs16 = _absvXX2 _addvXX3 _subvXX3 _mulvXX3 _negvXX2 _clrsbXX2
 104
 105 hiintfuncs16 = $(subst XX,hi,$(intfuncs16))
 106 siintfuncs16 = $(subst XX,si,$(intfuncs16))
 107
 108 iter-items := $(hiintfuncs16)
 109 iter-labels := $(siintfuncs16)
 110 iter-sizes := $(patsubst %,2,$(siintfuncs16)) $(patsubst %,2,$(hiintfuncs16))
 111
 112
 113 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/siditi-object.mk,$(iter-items))
 114 libgcc-objects += $(patsubst %,%$(objext),$(hiintfuncs16))
 115
 116 ifeq ($(enable_shared),yes)
 117 libgcc-s-objects += $(patsubst %,%_s$(objext),$(hiintfuncs16))
 118 endif
 119
 120 ###
 121
 122 conv_XY=$(conv)$(mode1)$(mode2)
 123 func_X=$(func)$(mode)
 124
 125 # Compile C functions from lib2funcs.c and add them to libgcc.a.
 126 #
 127 # Some functions which are not performance.critical are more convenient
 128 # to implement in C than in assembler.  Most of them serve as implementation
 129 # for AVR-specific builtins in the case where the address of a builtin
 130 # function is taken or if there is no insn that implements the builtin.
 131 #
 132 # We don't use LIB2ADD because we want to iterate over the source for
 133 # different modes, fixed-point suffixes, etc.  See iter-labels and L_LABEL.
 134 # iter-label will get one more underscore in order to avoid too short
 135 # labels like -DLk and we use -DL_k instead.
 136
 137 # Build roundFX functions from lib2funcs.c
 138
 139 round_suffix :=  hr r lr uhr ur ulr  \
 140                  hk k    uhk uk
 141 round_funcs  := $(foreach func,_round,\
 142                 $(foreach mode,$(round_suffix),$(func_X)))
 143
 144 iter-items  := $(round_funcs)
 145 iter-labels := $(round_suffix)
 146 iter-flags  := $(patsubst %,-DL_round,$(iter-items))
 147
 148 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
 149
 150 libgcc-objects += $(patsubst %,%$(objext),$(round_funcs))
 151
 152 # Build clrsbXX functions from lib2funcs.c
 153
 154 clrsb_modes := qi di
 155 clrsb_funcs := $(foreach func,_clrsb,\
 156                $(foreach mode,$(clrsb_modes),$(func_X)))
 157
 158 iter-items  := $(clrsb_funcs)
 159 iter-labels := $(clrsb_funcs)
 160 iter-flags  := $(patsubst %,-DL_clrsb,$(iter-items))
 161
 162 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
 163
 164 libgcc-objects += $(patsubst %,%$(objext),$(clrsb_funcs))
 165
 166 # Build signed countlsFX functions from lib2funcs.c
 167
 168 countls_modes := qi hi si di
 169 countls_funcs := $(foreach func,_countls,\
 170                  $(foreach mode,$(countls_modes),$(func_X)))
 171
 172 iter-items  := $(countls_funcs)
 173 iter-labels := $(countls_modes)
 174 iter-flags  := $(patsubst %,-DL_countls,$(iter-items))
 175
 176 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
 177
 178 libgcc-objects += $(patsubst %,%$(objext),$(countls_funcs))
 179
 180 # Build unsigned countlsFX functions from lib2funcs.c
 181
 182 countlsu_modes := qi hi si di
 183 countlsu_funcs := $(foreach func,_countlsu,\
 184                   $(foreach mode,$(countlsu_modes),$(func_X)))
 185
 186 iter-items  := $(countlsu_funcs)
 187 iter-labels := $(countlsu_modes)
 188 iter-flags  := $(patsubst %,-DL_countlsu,$(iter-items))
 189
 190 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/config/avr/lib2-object.mk,$(iter-items))
 191
 192 libgcc-objects += $(patsubst %,%$(objext),$(countlsu_funcs))
 193
 194
 195 # Filter out supported conversions from fixed-bit.c
 196 # Also filter out TQ and UTQ.
 197
 198 # Conversions supported by the compiler
 199
 200 convf_modes =    QI UQI QQ UQQ \
 201                  HI UHI HQ UHQ HA UHA \
 202                  SI USI SQ USQ SA USA \
 203                  DI UDI DQ UDQ DA UDA \
 204                  TI UTI TQ UTQ TA UTA
 205
 206 LIB2FUNCS_EXCLUDE += \
 207         $(foreach conv,_fract _fractuns,\
 208         $(foreach mode1,$(convf_modes),\
 209         $(foreach mode2,$(convf_modes),$(conv_XY))))
 210
 211 # Conversions supported by lib1funcs-fixed.S
 212
 213 conv_to_sf_modes   = QQ UQQ HQ UHQ HA UHA SQ USQ SA USA
 214 conv_from_sf_modes = QQ UQQ HQ UHQ HA UHA        SA USA
 215
 216 LIB2FUNCS_EXCLUDE += \
 217         $(foreach conv,_fract, \
 218         $(foreach mode1,$(conv_to_sf_modes), \
 219         $(foreach mode2,SF,$(conv_XY))))
 220
 221 LIB2FUNCS_EXCLUDE += \
 222         $(foreach conv,_fract,\
 223         $(foreach mode1,SF,\
 224         $(foreach mode2,$(conv_from_sf_modes),$(conv_XY))))
 225
 226 # Arithmetik supported by the compiler
 227
 228 allfix_modes = QQ UQQ HQ UHQ HA UHA SQ USQ SA USA DA UDA DQ UDQ TQ UTQ TA UTA
 229
 230 LIB2FUNCS_EXCLUDE += \
 231         $(foreach func,_add _sub,\
 232         $(foreach mode,$(allfix_modes),$(func_X)))
 233
 234 LIB2FUNCS_EXCLUDE += \
 235         $(foreach func,_lshr _ashl _ashr _cmp,\
 236         $(foreach mode,$(allfix_modes),$(func_X)))
 237
 238
 239 usat_modes = UQQ UHQ UHA USQ USA UDQ UDA UTQ UTA
 240 ssat_modes =  QQ  HQ  HA  SQ  SA  DQ  DA  TQ  TA
 241
 242 LIB2FUNCS_EXCLUDE += \
 243         $(foreach func,_ssadd _sssub _ssneg _ssabs,\
 244         $(foreach mode,$(ssat_modes),$(func_X)))
 245
 246 LIB2FUNCS_EXCLUDE += \
 247         $(foreach func,_usadd _ussub _usneg,\
 248         $(foreach mode,$(usat_modes),$(func_X)))
 249
 250
 251 smul_modes =  QQ  HQ  HA  SA
 252 umul_modes = UQQ UHQ UHA USA
 253 sdiv_modes =  QQ  HQ  HA  SA
 254 udiv_modes = UQQ UHQ UHA USA
 255
 256 LIB2FUNCS_EXCLUDE += \
 257         $(foreach func,_mul,\
 258         $(foreach mode,$(smul_modes) $(umul_modes),$(func_X)))
 259
 260 LIB2FUNCS_EXCLUDE += \
 261         $(foreach func,_div,\
 262         $(foreach mode,$(sdiv_modes) $(udiv_modes),$(func_X)))