88 lines
2.3 KiB
Makefile
88 lines
2.3 KiB
Makefile
LIBC_PORT_DIR := $(call select_from_ports,libc)
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LIBC_DIR := $(LIBC_PORT_DIR)/src/lib/libc
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LIBM_DIR := $(LIBC_DIR)/lib/msun
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LIBS = libc
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#
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# finding 'math_private.h'
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#
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INC_DIR += $(LIBM_DIR)/src
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#
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# finding 'invtrig.h', included by 'e_acosl.c'
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#
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INC_DIR += $(LIBM_DIR)/ld80
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#
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# finding 'fpmath.h', included by 'invtrig.h'
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#
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INC_DIR += $(LIBC_DIR)/lib/libc/include
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FILTER_OUT += s_exp2l.c
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#
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# Files that are included by other sources (e.g., 's_sin.c'). Hence, we need
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# to remove them from the build. Otherwise, we would end up with doubly
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# defined symbols (and compiler warnings since those files are apparently
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# not meant to be compiled individually).
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#
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FILTER_OUT += e_rem_pio2.c e_rem_pio2f.c
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#
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# Disable warnings for selected files, i.e., to suppress
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# 'is static but used in inline function which is not static'
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# messages
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#
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CC_OPT_s_tanf = -w
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CC_OPT_s_tan = -w
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CC_OPT_s_sin = -w
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CC_OPT_s_cos = -w
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CC_OPT_s_cosf = -w
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CC_OPT_s_sinf = -w
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CC_OPT_k_cosf = -w
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CC_OPT_k_sinf = -w
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CC_OPT_k_tanf = -w
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#
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# Work-around to get over doubly defined symbols produced by several sources
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# that include 'e_rem_pio2.c' and 'e_rem_pio2f.c'. To avoid symbol clashes,
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# we rename each occurrence by adding the basename of the compilation unit
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# as suffix.
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#
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CC_OPT_s_sin += -D__ieee754_rem_pio2=__ieee754_rem_pio2_s_sin
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CC_OPT_s_cos += -D__ieee754_rem_pio2=__ieee754_rem_pio2_s_cos
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CC_OPT_s_sinf += -D__ieee754_rem_pio2f=__ieee754_rem_pio2f_s_sinf
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CC_OPT_s_sinf += -D__kernel_cosdf=__kernel_cosdf_sinf
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CC_OPT_s_cosf += -D__ieee754_rem_pio2f=__ieee754_rem_pio2f_s_cosf
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CC_OPT_s_cosf += -D__kernel_sindf=__kernel_sindf_cosf
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CC_OPT_s_tanf += -D__ieee754_rem_pio2f=__ieee754_rem_pio2f_s_tanf
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#
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# Use default warning level rather than -Wall because we do not want to touch
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# the imported source code to improve build aesthetics.
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#
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CC_WARN =
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SRC_C = $(wildcard $(LIBM_DIR)/src/*.c) \
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$(wildcard $(LIBM_DIR)/ld80/*.c) \
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$(wildcard $(LIBM_DIR)/bsdsrc/*.c)
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SRC_C := $(filter-out $(FILTER_OUT),$(notdir $(SRC_C)))
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# remove on update to version 9
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SRC_C += log2.c
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#
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# 'e_rem_pio2.c' uses '__inline'
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#
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CC_OPT += -D__inline=inline
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vpath %.c $(LIBM_DIR)/src
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vpath %.c $(LIBM_DIR)/ld80
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vpath %.c $(LIBM_DIR)/bsdsrc
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# remove on update to version 9
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vpath log2.c $(REP_DIR)/src/lib/libc
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SHARED_LIB = yes
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