diff options
Diffstat (limited to 'libgcc/config/avr/t-avr')
| -rw-r--r-- | libgcc/config/avr/t-avr | 94 |
1 files changed, 88 insertions, 6 deletions
diff --git a/libgcc/config/avr/t-avr b/libgcc/config/avr/t-avr index 3bc07186d3b..a4b8113e02e 100644 --- a/libgcc/config/avr/t-avr +++ b/libgcc/config/avr/t-avr @@ -75,13 +75,24 @@ LIB1ASMFUNCS += \ _divsa3 _udivusa3 \ _clr_8 \ _ssneg_2 _ssneg_4 _ssneg_8 \ - _ssabs_2 _ssabs_4 _ssabs_8 \ + _ssabs_1 _ssabs_2 _ssabs_4 _ssabs_8 \ _ssadd_8 _sssub_8 \ - _usadd_8 _ussub_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 \ + LIB2FUNCS_EXCLUDE = \ _moddi3 _umoddi3 \ - _clz + _clz \ + _clrsbdi2 \ + # We do not have the DF type. # Most of the C functions in libgcc2 use almost all registers, @@ -106,13 +117,84 @@ ifeq ($(enable_shared),yes) libgcc-s-objects += $(patsubst %,%_s$(objext),$(hiintfuncs16)) endif - -# Filter out supported conversions from fixed-bit.c -# Also filter out TQ and UTQ. +### conv_XY=$(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 $(srcdir)/empty.mk $(patsubst %,$(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 $(srcdir)/empty.mk $(patsubst %,$(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 $(srcdir)/empty.mk $(patsubst %,$(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 $(srcdir)/empty.mk $(patsubst %,$(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 \ |