mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-16 19:40:07 +08:00
d18f1fc8a3
The patch cleans up the auto configury mechanism used to select different implementations of memchr for various architecture versions. The approach here is to remove the selection of memchr within automake and instead use complimentary logic in memchr-stub.c and memchr.S to choose between the gerneric memchr.c implementation or one of the architecture specific implementations. This patch also changes the selection criteria inline with the previous proposal here: https://sourceware.org/ml/newlib/2015/msg00752.html but using the ACLE predefines. Regressed for armv7-a armv5 armv8-a, correct selection of memcpy implementation by manual inspection of a test program built for these three architectures.
70 lines
1.7 KiB
Makefile
70 lines
1.7 KiB
Makefile
## Process this file with automake to generate Makefile.in
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AUTOMAKE_OPTIONS = cygnus
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INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
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AM_CCASFLAGS = $(INCLUDES)
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noinst_LIBRARIES = lib.a
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if HAVE_THUMB1
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if OPT_SIZE
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STRLEN_SRC=strlen.c
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STRLEN_OBJ=$(lpfx)strlen.o
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else
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STRLEN_SRC=
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STRLEN_OBJ=
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endif
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else
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STRLEN_SRC=strlen.c
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STRLEN_OBJ=$(lpfx)strlen.o
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endif
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lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \
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$(STRLEN_SRC) \
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strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S \
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aeabi_memmove.c aeabi_memmove-soft.S \
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aeabi_memset.c aeabi_memset-soft.S aeabi_memclr.c
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lib_a_SOURCES += memchr-stub.c
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lib_a_SOURCES += memchr.S
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lib_a_SOURCES += memcpy-stub.c
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lib_a_SOURCES += memcpy.S
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lib_a_CCASFLAGS=$(AM_CCASFLAGS)
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lib_a_CFLAGS = $(AM_CFLAGS)
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lib_a_LIBADD = $(STRLEN_OBJ)
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lib_a_DEPENDENCIES = $(STRLEN_OBJ)
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ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
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CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
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MEMCHR_DEP=acle-compat.h arm_asm.h
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MEMCPY_DEP=memcpy-armv7a.S memcpy-armv7m.S
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STRCMP_DEP=strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \
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strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S
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AEABI_MEMMOVE_DEP=aeabi_memmove-thumb.S aeabi_memmove-thumb2.S \
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aeabi_memmove-arm.S
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AEABI_MEMSET_DEP=aeabi_memset-thumb.S aeabi_memset-thumb2.S \
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aeabi_memset-arm.S
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$(lpfx)memchr.o: $(MEMCHR_DEP)
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$(lpfx)memchr.obj: $(MEMCHR_DEP)
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$(lpfx)memcpy.o: $(MEMCPY_DEP)
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$(lpfx)memcpy.obj: $(MEMCPY_DEP)
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$(lpfx)strcmp.o: $(STRCMP_DEP)
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$(lpfx)strcmp.obj: $(STRCMP_DEP)
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$(lpfx)aeabi_memmove.o: $(AEABI_MEMMOVE_DEP)
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$(lpfx)aeabi_memmove.obj: $(AEABI_MEMMOVE_DEP)
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$(lpfx)aeabi_memset.o: $(AEABI_MEMSET_DEP)
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$(lpfx)aeabi_memset.obj: $(AEABI_MEMSET_DEP)
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