1 # Used except --with-libf7=no 2 3 avrsrc := $(srcdir)/config/avr 4 5 libf7 := $(avrsrc)/libf7 6 7 F7_PREFIX = __f7_ 8 9 include $(libf7)/libf7-common.mk 10 11 LIBF7_DF_CONV += floatundidf floatdidf # floatunsidf floatsidf 12 13 # Wrappers like f7_lt_impl for f7_lt etc. because the latter is inline. 14 LIBF7_DF_CMP += lt le gt ge ne eq unord 15 16 F7_C_PARTS += $(LIBF7_DF_CONV) $(LIBF7_DF_CMP) 17 18 # -mcall-prologues 19 CALL_PROLOGUES += $(LIBF7_DF_CONV) 20 21 # -Wno-missing-prototypes 22 NO_PROTO += $(LIBF7_DF_CONV) 23 24 F7F += le_impl lt_impl gt_impl ge_impl ne_impl eq_impl unord_impl 25 26 27 $(libf7)/f7-renames.h: $(libf7)/f7renames.sh $(libf7)/libf7-common.mk 28 $< head $(F7_PREFIX) t-libf7 > $@ 29 $< c $(F7_PREFIX) $(F7F) >> $@ 30 $< cst $(F7_PREFIX) $(F7F_cst) >> $@ 31 $< asm $(F7_PREFIX) $(F7F_asm) >> $@ 32 $< tail $(F7_PREFIX) >> $@ 33 34 # The right-hand sides like g_ddd come from libf7-common.mk. 35 # The _m_ wraps are added by t-libf7-math 36 37 # __adddf3, ... 38 F7_ASM_WRAPS_g_ddd += $(g_ddd) 39 40 # __ltdf2, ... 41 F7_ASM_WRAPS_g_xdd_cmp += $(g_xdd_cmp) 42 43 # __floatsidf, ... 44 F7_ASM_WRAPS_g_dx += $(g_dx) 45 46 # __fixdfsi, ... 47 F7_ASM_WRAPS_g_xd += $(g_xd) 48 49 $(libf7)/f7-wraps.h: $(libf7)/f7wraps.sh \ 50 $(libf7)/libf7-common.mk $(libf7)/t-libf7-math 51 $< header "WITH_LIBF7_MATH_FUNCTIONS=$(WITH_LIBF7_MATH_FUNCTIONS)" "WITH_LIBF7_MATH_SYMBOLS=$(WITH_LIBF7_MATH_SYMBOLS)" > $@ 52 $< ddd_libgcc $(F7_ASM_WRAPS_g_ddd) >> $@ 53 $< xdd_libgcc_cmp $(F7_ASM_WRAPS_g_xdd_cmp) >> $@ 54 $< xd_libgcc $(F7_ASM_WRAPS_g_xd) >> $@ 55 $< dx_libgcc $(F7_ASM_WRAPS_g_dx) >> $@ 56 $< ddd_math $(F7_ASM_WRAPS_m_ddd) >> $@ 57 $< ddx_math $(F7_ASM_WRAPS_m_ddx) >> $@ 58 $< dd_math $(F7_ASM_WRAPS_m_dd) >> $@ 59 $< xd_math $(F7_ASM_WRAPS_m_xd) >> $@ 60 61 F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_xd) 62 F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_dx) 63 F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_ddd) 64 F7_ASM_WRAPS += $(F7_ASM_WRAPS_g_xdd_cmp) 65 F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_ddd) 66 F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_ddx) 67 F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_dd) 68 F7_ASM_WRAPS += $(F7_ASM_WRAPS_m_xd) 69 70 F7_ASM_PARTS += $(patsubst %, D_%, $(F7_ASM_WRAPS)) 71 72 # Options 73 F7_FLAGS += -I $(libf7) -save-temps=obj 74 75 # t-avr::HOST_LIBGCC2_CFLAGS sets -mcall-prologues which will inhibits 76 # tail-call optimizations. The user could get it with -mrelax, but we 77 # just switch it off here and then explicitly on again for the 78 # CALL_PROLOGUES modules. 79 80 F7_C_FLAGS += $(F7_FLAGS) \ 81 -dp -g0 \ 82 -mno-call-prologues \ 83 -fno-lto -Os \ 84 -fdata-sections -ffunction-sections \ 85 -fno-reorder-blocks \ 86 -fno-tree-loop-optimize \ 87 -fno-tree-loop-im -fno-move-loop-invariants 88 89 F7_ASM_FLAGS += $(F7_FLAGS) -g0 90 91 $(patsubst %, f7_c_%.o, $(CALL_PROLOGUES)) \ 92 : F7_C_FLAGS += -mcall-prologues 93 94 $(patsubst %, f7_c_%.o, $(STRICT_X)) \ 95 : F7_C_FLAGS += -mstrict-X 96 97 $(patsubst %, f7_c_%.o, $(NO_PROTO)) \ 98 : F7_C_FLAGS += -Wno-missing-prototypes 99 100 # Depends will be worked out by the libgcc build system. 101 102 F7_C_OBJECTS = $(patsubst %, f7_c_%$(objext), $(F7_C_PARTS)) 103 F7_ASM_OBJECTS = $(patsubst %, f7_asm_%$(objext), $(F7_ASM_PARTS)) 104 105 $(F7_ASM_OBJECTS) $(F7_C_OBJECTS) : $(libf7)/t-libf7 106 $(F7_ASM_OBJECTS) $(F7_C_OBJECTS) : $(libf7)/t-libf7-math 107 $(F7_ASM_OBJECTS) $(F7_C_OBJECTS) : $(libf7)/t-libf7-math-symbols 108 109 .PHONY: log_vars 110 111 all: log_vars 112 113 log_vars: 114 $(info # libf7: WITH_LIBF7_MATH_FUNCTIONS = $(WITH_LIBF7_MATH_FUNCTIONS)) 115 $(info # libf7: WITH_LIBF7_MATH_SYMBOLS = $(WITH_LIBF7_MATH_SYMBOLS)) 116 $(info # libf7: F7_C_PARTS = $(F7_C_PARTS)) 117 $(info # libf7: F7_C_OBJECTS = $(F7_C_OBJECTS)) 118 $(info # libf7: F7_ASM_PARTS = $(F7_ASM_PARTS)) 119 $(info # libf7: F7_ASM_OBJECTS = $(F7_ASM_OBJECTS)) 120 121 # Build the libf7 C objects and add them to libgcc.a. 122 123 f7_parts := $(F7_C_PARTS) 124 125 iter-items := $(f7_parts) 126 iter-labels := $(f7_parts) 127 128 -include $(patsubst %,$(libf7)/libf7-c-object.mk,$(iter-items)) 129 130 libgcc-objects += $(patsubst %,f7_c_%$(objext),$(F7_C_PARTS)) 131 132 # Build the libf7 ASM objects and add them to libgcc.a. 133 134 f7_parts := $(F7_ASM_PARTS) 135 136 iter-items := $(f7_parts) 137 iter-labels := $(f7_parts) 138 139 -include $(patsubst %,$(libf7)/libf7-asm-object.mk,$(iter-items)) 140 141 libgcc-objects += $(patsubst %,f7_asm_%$(objext),$(F7_ASM_PARTS)) 142 143 .PHONY: clean-f7 144 145 clean: clean-f7 146 147 clean-f7: 148 rm -f $(wildcard f7_*.i f7_*.s f7_*.o) 149 150 # Get rid if any DFmode remains. 151 152 LIB2FUNCS_EXCLUDE += \ 153 _sf_to_df \ 154 _fixdfdi \ 155 _fixunsdfsi \ 156 _floatundidf \ 157 _fixunsdfdi \ 158 _floatdidf \ 159 _powidf2 160
Indexes created Thu Mar 19 00:23:35 UTC 2026