160 lines
4.3 KiB
Plaintext
160 lines
4.3 KiB
Plaintext
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# Used except --with-libf7=no
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avrsrc := $(srcdir)/config/avr
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libf7 := $(avrsrc)/libf7
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F7_PREFIX = __f7_
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include $(libf7)/libf7-common.mk
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LIBF7_DF_CONV += floatundidf floatdidf # floatunsidf floatsidf
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# Wrappers like f7_lt_impl for f7_lt etc. because the latter is inline.
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LIBF7_DF_CMP += lt le gt ge ne eq unord
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F7_C_PARTS += $(LIBF7_DF_CONV) $(LIBF7_DF_CMP)
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# -mcall-prologues
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CALL_PROLOGUES += $(LIBF7_DF_CONV)
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# -Wno-missing-prototypes
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NO_PROTO += $(LIBF7_DF_CONV)
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F7F += le_impl lt_impl gt_impl ge_impl ne_impl eq_impl unord_impl
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$(libf7)/f7-renames.h: $(libf7)/f7renames.sh $(libf7)/libf7-common.mk
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$< head $(F7_PREFIX) t-libf7 > $@
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$< c $(F7_PREFIX) $(F7F) >> $@
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$< cst $(F7_PREFIX) $(F7F_cst) >> $@
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$< asm $(F7_PREFIX) $(F7F_asm) >> $@
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$< tail $(F7_PREFIX) >> $@
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# The right-hand sides like g_ddd come from libf7-common.mk.
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# The _m_ wraps are added by t-libf7-math
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# __adddf3, ...
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F7_ASM_WRAPS_g_ddd += $(g_ddd)
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# __ltdf2, ...
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F7_ASM_WRAPS_g_xdd_cmp += $(g_xdd_cmp)
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# __floatsidf, ...
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F7_ASM_WRAPS_g_dx += $(g_dx)
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# __fixdfsi, ...
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F7_ASM_WRAPS_g_xd += $(g_xd)
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$(libf7)/f7-wraps.h: $(libf7)/f7wraps.sh \
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$(libf7)/libf7-common.mk $(libf7)/t-libf7-math
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$< header "WITH_LIBF7_MATH_FUNCTIONS=$(WITH_LIBF7_MATH_FUNCTIONS)" "WITH_LIBF7_MATH_SYMBOLS=$(WITH_LIBF7_MATH_SYMBOLS)" > $@
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$< ddd_libgcc $(F7_ASM_WRAPS_g_ddd) >> $@
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$< xdd_libgcc_cmp $(F7_ASM_WRAPS_g_xdd_cmp) >> $@
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$< xd_libgcc $(F7_ASM_WRAPS_g_xd) >> $@
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$< dx_libgcc $(F7_ASM_WRAPS_g_dx) >> $@
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$< ddd_math $(F7_ASM_WRAPS_m_ddd) >> $@
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$< ddx_math $(F7_ASM_WRAPS_m_ddx) >> $@
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$< dd_math $(F7_ASM_WRAPS_m_dd) >> $@
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$< xd_math $(F7_ASM_WRAPS_m_xd) >> $@
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_xd)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_dx)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_ddd)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_xdd_cmp)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_ddd)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_ddx)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_dd)
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F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_xd)
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F7_ASM_PARTS += $(patsubst %, D_%, $(F7_ASM_WRAPS))
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# Options
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F7_FLAGS += -I $(libf7) -save-temps=obj
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# t-avr::HOST_LIBGCC2_CFLAGS sets -mcall-prologues which will inhibits
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# tail-call optimizations. The user could get it with -mrelax, but we
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# just switch it off here and then explicitly on again for the
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# CALL_PROLOGUES modules.
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F7_C_FLAGS += $(F7_FLAGS) \
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-dp -g0 \
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-mno-call-prologues \
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-fno-lto -Os \
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-fdata-sections -ffunction-sections \
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-fno-reorder-blocks \
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-fno-tree-loop-optimize \
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-fno-tree-loop-im -fno-move-loop-invariants
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F7_ASM_FLAGS += $(F7_FLAGS)
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$(patsubst %, f7_c_%.o, $(CALL_PROLOGUES)) \
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: F7_C_FLAGS += -mcall-prologues
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$(patsubst %, f7_c_%.o, $(STRICT_X)) \
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: F7_C_FLAGS += -mstrict-X
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$(patsubst %, f7_c_%.o, $(NO_PROTO)) \
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: F7_C_FLAGS += -Wno-missing-prototypes
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# Depends will be worked out by the libgcc build system.
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F7_C_OBJECTS = $(patsubst %, f7_c_%$(objext), $(F7_C_PARTS))
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F7_ASM_OBJECTS = $(patsubst %, f7_asm_%$(objext), $(F7_ASM_PARTS))
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$(F7_ASM_OBJECTS) $(F7_C_OBJECTS) : $(libf7)/t-libf7
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$(F7_ASM_OBJECTS) $(F7_C_OBJECTS) : $(libf7)/t-libf7-math
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$(F7_ASM_OBJECTS) $(F7_C_OBJECTS) : $(libf7)/t-libf7-math-symbols
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.PHONY: log_vars
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all: log_vars
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log_vars:
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$(info # libf7: WITH_LIBF7_MATH_FUNCTIONS = $(WITH_LIBF7_MATH_FUNCTIONS))
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$(info # libf7: WITH_LIBF7_MATH_SYMBOLS = $(WITH_LIBF7_MATH_SYMBOLS))
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$(info # libf7: F7_C_PARTS = $(F7_C_PARTS))
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$(info # libf7: F7_C_OBJECTS = $(F7_C_OBJECTS))
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$(info # libf7: F7_ASM_PARTS = $(F7_ASM_PARTS))
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$(info # libf7: F7_ASM_OBJECTS = $(F7_ASM_OBJECTS))
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# Build the libf7 C objects and add them to libgcc.a.
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f7_parts := $(F7_C_PARTS)
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iter-items := $(f7_parts)
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iter-labels := $(f7_parts)
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-include $(patsubst %,$(libf7)/libf7-c-object.mk,$(iter-items))
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libgcc-objects += $(patsubst %,f7_c_%$(objext),$(F7_C_PARTS))
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# Build the libf7 ASM objects and add them to libgcc.a.
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f7_parts := $(F7_ASM_PARTS)
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iter-items := $(f7_parts)
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iter-labels := $(f7_parts)
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-include $(patsubst %,$(libf7)/libf7-asm-object.mk,$(iter-items))
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libgcc-objects += $(patsubst %,f7_asm_%$(objext),$(F7_ASM_PARTS))
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.PHONY: clean-f7
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clean: clean-f7
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clean-f7:
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rm -f $(wildcard f7_*.i f7_*.s f7_*.o)
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# Get rid if any DFmode remains.
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LIB2FUNCS_EXCLUDE += \
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_sf_to_df \
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_fixdfdi \
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_fixunsdfsi \
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_floatundidf \
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_fixunsdfdi \
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_floatdidf \
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_powidf2
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