* libc/machine/arm/aeabi_memmove.c: New file to support
aeabi_memmove. * libc/machine/arm/aeabi_memmove-soft.S: Ditto. * libc/machine/arm/aeabi_memmove-arm.S: Ditto. * libc/machine/arm/aeabi_memmove-thumb.S: Ditto. * libc/machine/arm/aeabi_memmove-thumb2.S: Ditto. * libc/machine/arm/Makefile.am: Add dependencies. * libc/machine/arm/Makefile.in: Regenerated.
This commit is contained in:
Corinna Vinschen
parent
b5d4a40465
commit
554f33c48d
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@ -1,3 +1,14 @@
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2015-02-17 Hale Wang <hale.wang@arm.com>
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* libc/machine/arm/aeabi_memmove.c: New file to support
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aeabi_memmove.
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* libc/machine/arm/aeabi_memmove-soft.S: Ditto.
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* libc/machine/arm/aeabi_memmove-arm.S: Ditto.
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* libc/machine/arm/aeabi_memmove-thumb.S: Ditto.
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* libc/machine/arm/aeabi_memmove-thumb2.S: Ditto.
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* libc/machine/arm/Makefile.am: Add dependencies.
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* libc/machine/arm/Makefile.in: Regenerated.
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2015-02-06 Nick Clifton <nickc@redhat.com>
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2015-02-06 Nick Clifton <nickc@redhat.com>
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* libc/include/complex.h (cabsl): Add prototype.
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* libc/include/complex.h (cabsl): Add prototype.
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@ -49,7 +49,8 @@ endif !OPT_SIZE
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lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \
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lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \
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$(MEMCPY_SRC) $(MEMCHR_SRC) $(STRLEN_SRC) \
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$(MEMCPY_SRC) $(MEMCHR_SRC) $(STRLEN_SRC) \
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strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S
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strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S \
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aeabi_memmove.c aeabi_memmove-soft.S
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lib_a_CCASFLAGS=$(AM_CCASFLAGS)
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lib_a_CCASFLAGS=$(AM_CCASFLAGS)
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lib_a_CFLAGS = $(AM_CFLAGS)
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lib_a_CFLAGS = $(AM_CFLAGS)
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@ -62,6 +63,8 @@ CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
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MEMCPY_DEP=memcpy-armv7a.S memcpy-armv7m.S
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MEMCPY_DEP=memcpy-armv7a.S memcpy-armv7m.S
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STRCMP_DEP=strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \
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STRCMP_DEP=strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \
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strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S
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strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S
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AEABI_MEMMOVE_DEP=aeabi_memmove-thumb.S aeabi_memmove-thumb2.S \
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aeabi_memmove-arm.S
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$(lpfx)memcpy.o: $(MEMCPY_DEP)
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$(lpfx)memcpy.o: $(MEMCPY_DEP)
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@ -70,3 +73,7 @@ $(lpfx)memcpy.obj: $(MEMCPY_DEP)
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$(lpfx)strcmp.o: $(STRCMP_DEP)
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$(lpfx)strcmp.o: $(STRCMP_DEP)
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$(lpfx)strcmp.obj: $(STRCMP_DEP)
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$(lpfx)strcmp.obj: $(STRCMP_DEP)
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$(lpfx)aeabi_memmove.o: $(AEABI_MEMMOVE_DEP)
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$(lpfx)aeabi_memmove.obj: $(AEABI_MEMMOVE_DEP)
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@ -85,7 +85,9 @@ am_lib_a_OBJECTS = lib_a-setjmp.$(OBJEXT) lib_a-access.$(OBJEXT) \
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lib_a-strcmp.$(OBJEXT) lib_a-strcpy.$(OBJEXT) $(am__objects_1) \
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lib_a-strcmp.$(OBJEXT) lib_a-strcpy.$(OBJEXT) $(am__objects_1) \
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$(am__objects_2) $(am__objects_3) lib_a-strlen-armv7.$(OBJEXT) \
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$(am__objects_2) $(am__objects_3) lib_a-strlen-armv7.$(OBJEXT) \
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lib_a-aeabi_memcpy.$(OBJEXT) \
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lib_a-aeabi_memcpy.$(OBJEXT) \
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lib_a-aeabi_memcpy-armv7a.$(OBJEXT)
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lib_a-aeabi_memcpy-armv7a.$(OBJEXT) \
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lib_a-aeabi_memmove.$(OBJEXT) \
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lib_a-aeabi_memmove-soft.$(OBJEXT)
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lib_a_OBJECTS = $(am_lib_a_OBJECTS)
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lib_a_OBJECTS = $(am_lib_a_OBJECTS)
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DEFAULT_INCLUDES = -I.@am__isrc@
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DEFAULT_INCLUDES = -I.@am__isrc@
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depcomp =
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depcomp =
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@ -232,7 +234,8 @@ noinst_LIBRARIES = lib.a
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@OPT_SIZE_TRUE@MEMCPY_OBJ =
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@OPT_SIZE_TRUE@MEMCPY_OBJ =
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lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \
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lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \
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$(MEMCPY_SRC) $(MEMCHR_SRC) $(STRLEN_SRC) \
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$(MEMCPY_SRC) $(MEMCHR_SRC) $(STRLEN_SRC) \
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strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S
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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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lib_a_CCASFLAGS = $(AM_CCASFLAGS)
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lib_a_CCASFLAGS = $(AM_CCASFLAGS)
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lib_a_CFLAGS = $(AM_CFLAGS)
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lib_a_CFLAGS = $(AM_CFLAGS)
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@ -244,6 +247,9 @@ MEMCPY_DEP = memcpy-armv7a.S memcpy-armv7m.S
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STRCMP_DEP = strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \
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STRCMP_DEP = strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \
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strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S
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strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S
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AEABI_MEMMOVE_DEP = aeabi_memmove-thumb.S aeabi_memmove-thumb2.S \
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aeabi_memmove-arm.S
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all: all-am
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all: all-am
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.SUFFIXES:
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.SUFFIXES:
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@ -338,6 +344,12 @@ lib_a-aeabi_memcpy-armv7a.o: aeabi_memcpy-armv7a.S
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lib_a-aeabi_memcpy-armv7a.obj: aeabi_memcpy-armv7a.S
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lib_a-aeabi_memcpy-armv7a.obj: aeabi_memcpy-armv7a.S
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$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-aeabi_memcpy-armv7a.obj `if test -f 'aeabi_memcpy-armv7a.S'; then $(CYGPATH_W) 'aeabi_memcpy-armv7a.S'; else $(CYGPATH_W) '$(srcdir)/aeabi_memcpy-armv7a.S'; fi`
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$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-aeabi_memcpy-armv7a.obj `if test -f 'aeabi_memcpy-armv7a.S'; then $(CYGPATH_W) 'aeabi_memcpy-armv7a.S'; else $(CYGPATH_W) '$(srcdir)/aeabi_memcpy-armv7a.S'; fi`
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lib_a-aeabi_memmove-soft.o: aeabi_memmove-soft.S
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$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-aeabi_memmove-soft.o `test -f 'aeabi_memmove-soft.S' || echo '$(srcdir)/'`aeabi_memmove-soft.S
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lib_a-aeabi_memmove-soft.obj: aeabi_memmove-soft.S
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$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-aeabi_memmove-soft.obj `if test -f 'aeabi_memmove-soft.S'; then $(CYGPATH_W) 'aeabi_memmove-soft.S'; else $(CYGPATH_W) '$(srcdir)/aeabi_memmove-soft.S'; fi`
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.c.o:
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.c.o:
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$(COMPILE) -c $<
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$(COMPILE) -c $<
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@ -368,6 +380,12 @@ lib_a-aeabi_memcpy.o: aeabi_memcpy.c
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lib_a-aeabi_memcpy.obj: aeabi_memcpy.c
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lib_a-aeabi_memcpy.obj: aeabi_memcpy.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-aeabi_memcpy.obj `if test -f 'aeabi_memcpy.c'; then $(CYGPATH_W) 'aeabi_memcpy.c'; else $(CYGPATH_W) '$(srcdir)/aeabi_memcpy.c'; fi`
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-aeabi_memcpy.obj `if test -f 'aeabi_memcpy.c'; then $(CYGPATH_W) 'aeabi_memcpy.c'; else $(CYGPATH_W) '$(srcdir)/aeabi_memcpy.c'; fi`
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lib_a-aeabi_memmove.o: aeabi_memmove.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-aeabi_memmove.o `test -f 'aeabi_memmove.c' || echo '$(srcdir)/'`aeabi_memmove.c
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lib_a-aeabi_memmove.obj: aeabi_memmove.c
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$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-aeabi_memmove.obj `if test -f 'aeabi_memmove.c'; then $(CYGPATH_W) 'aeabi_memmove.c'; else $(CYGPATH_W) '$(srcdir)/aeabi_memmove.c'; fi`
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ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
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ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
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list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
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list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
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unique=`for i in $$list; do \
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unique=`for i in $$list; do \
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@ -547,6 +565,10 @@ $(lpfx)strcmp.o: $(STRCMP_DEP)
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$(lpfx)strcmp.obj: $(STRCMP_DEP)
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$(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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# Tell versions [3.59,3.63) of GNU make to not export all variables.
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# Tell versions [3.59,3.63) of GNU make to not export all variables.
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# Otherwise a system limit (for SysV at least) may be exceeded.
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# Otherwise a system limit (for SysV at least) may be exceeded.
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.NOEXPORT:
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.NOEXPORT:
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|
|
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|
@ -0,0 +1,63 @@
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||||||
|
/*
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||||||
|
* Copyright (c) 2015 ARM Ltd
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||||||
|
* All rights reserved.
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||||||
|
*
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||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the company may not be used to endorse or promote
|
||||||
|
* products derived from this software without specific prior written
|
||||||
|
* permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
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||||||
|
|
||||||
|
.arm
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||||||
|
.syntax divided
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|
.global __aeabi_memmove
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|
.type __aeabi_memmove, %function
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|
ASM_ALIAS __aeabi_memmove4 __aeabi_memmove
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||||||
|
ASM_ALIAS __aeabi_memmove8 __aeabi_memmove
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||||||
|
__aeabi_memmove:
|
||||||
|
.cfi_startproc
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||||||
|
cmp r0, r1
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||||||
|
add r3, r1, r2
|
||||||
|
bhi .L2
|
||||||
|
.L4:
|
||||||
|
sub r2, r0, #1
|
||||||
|
b .L3
|
||||||
|
.L2:
|
||||||
|
cmp r0, r3
|
||||||
|
addcc r1, r0, r2
|
||||||
|
rsbcc r2, r3, r2
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||||||
|
bcs .L4
|
||||||
|
.L5:
|
||||||
|
cmn r3, r2
|
||||||
|
ldrneb ip, [r3, #-1]!
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||||||
|
strneb ip, [r1, #-1]!
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||||||
|
bne .L5
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||||||
|
.L11:
|
||||||
|
bx lr
|
||||||
|
.L3:
|
||||||
|
cmp r1, r3
|
||||||
|
ldrneb ip, [r1], #1
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||||||
|
strneb ip, [r2, #1]!
|
||||||
|
bne .L3
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||||||
|
.L12:
|
||||||
|
bx lr
|
||||||
|
.cfi_endproc
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||||||
|
.size __aeabi_memmove, . - __aeabi_memmove
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||||||
|
|
@ -0,0 +1,52 @@
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||||||
|
/*
|
||||||
|
* Copyright (c) 2015 ARM Ltd
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the company may not be used to endorse or promote
|
||||||
|
* products derived from this software without specific prior written
|
||||||
|
* permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "arm_asm.h"
|
||||||
|
|
||||||
|
.macro ASM_ALIAS new old
|
||||||
|
.global \new
|
||||||
|
.type \new, %function
|
||||||
|
#if defined (__thumb__)
|
||||||
|
.thumb_set \new, \old
|
||||||
|
#else
|
||||||
|
.set \new, \old
|
||||||
|
#endif
|
||||||
|
.endm
|
||||||
|
|
||||||
|
/* NOTE: This ifdef MUST match the one in aeabi_memmove.c. */
|
||||||
|
#if !defined (__SOFTFP__)
|
||||||
|
|
||||||
|
# if defined (__thumb2__)
|
||||||
|
# include "aeabi_memmove-thumb2.S"
|
||||||
|
# elif defined (__thumb__)
|
||||||
|
# include "aeabi_memmove-thumb.S"
|
||||||
|
# else
|
||||||
|
# include "aeabi_memmove-arm.S"
|
||||||
|
# endif
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
@ -0,0 +1,64 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2015 ARM Ltd
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the company may not be used to endorse or promote
|
||||||
|
* products derived from this software without specific prior written
|
||||||
|
* permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.thumb
|
||||||
|
.syntax unified
|
||||||
|
.global __aeabi_memmove
|
||||||
|
.type __aeabi_memmove, %function
|
||||||
|
ASM_ALIAS __aeabi_memmove4 __aeabi_memmove
|
||||||
|
ASM_ALIAS __aeabi_memmove8 __aeabi_memmove
|
||||||
|
__aeabi_memmove:
|
||||||
|
.cfi_startproc
|
||||||
|
push {r4, lr}
|
||||||
|
cmp r0, r1
|
||||||
|
bls .L9
|
||||||
|
adds r3, r1, r2
|
||||||
|
cmp r0, r3
|
||||||
|
bcc .L3
|
||||||
|
.L9:
|
||||||
|
movs r3, #0
|
||||||
|
b .L4
|
||||||
|
.L3:
|
||||||
|
subs r3, r3, r2
|
||||||
|
.L5:
|
||||||
|
subs r2, r2, #1
|
||||||
|
bcc .L10
|
||||||
|
ldrb r1, [r3, r2]
|
||||||
|
strb r1, [r0, r2]
|
||||||
|
b .L5
|
||||||
|
.L4:
|
||||||
|
cmp r3, r2
|
||||||
|
beq .L10
|
||||||
|
ldrb r4, [r1, r3]
|
||||||
|
strb r4, [r0, r3]
|
||||||
|
adds r3, r3, #1
|
||||||
|
b .L4
|
||||||
|
.L10:
|
||||||
|
pop {r4, pc}
|
||||||
|
.cfi_endproc
|
||||||
|
.size __aeabi_memmove, . - __aeabi_memmove
|
||||||
|
|
@ -0,0 +1,66 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2015 ARM Ltd
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the company may not be used to endorse or promote
|
||||||
|
* products derived from this software without specific prior written
|
||||||
|
* permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.thumb
|
||||||
|
.syntax unified
|
||||||
|
.global __aeabi_memmove
|
||||||
|
.type __aeabi_memmove, %function
|
||||||
|
ASM_ALIAS __aeabi_memmove4 __aeabi_memmove
|
||||||
|
ASM_ALIAS __aeabi_memmove8 __aeabi_memmove
|
||||||
|
__aeabi_memmove:
|
||||||
|
.cfi_startproc
|
||||||
|
cmp r0, r1
|
||||||
|
add r3, r1, r2
|
||||||
|
push {r4, lr}
|
||||||
|
bhi .L2
|
||||||
|
.L4:
|
||||||
|
subs r2, r0, #1
|
||||||
|
b .L3
|
||||||
|
.L2:
|
||||||
|
cmp r0, r3
|
||||||
|
bcs .L4
|
||||||
|
adds r1, r0, r2
|
||||||
|
subs r2, r2, r3
|
||||||
|
.L5:
|
||||||
|
cmn r3, r2
|
||||||
|
beq .L12
|
||||||
|
ldrb r4, [r3, #-1]!
|
||||||
|
strb r4, [r1, #-1]!
|
||||||
|
b .L5
|
||||||
|
.L12:
|
||||||
|
pop {r4, pc}
|
||||||
|
.L3:
|
||||||
|
cmp r1, r3
|
||||||
|
beq .L13
|
||||||
|
ldrb r4, [r1], #1
|
||||||
|
strb r4, [r2, #1]!
|
||||||
|
b .L3
|
||||||
|
.L13:
|
||||||
|
pop {r4, pc}
|
||||||
|
.cfi_endproc
|
||||||
|
.size __aeabi_memmove, . - __aeabi_memmove
|
||||||
|
|
@ -0,0 +1,63 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2015 ARM Ltd
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the company may not be used to endorse or promote
|
||||||
|
* products derived from this software without specific prior written
|
||||||
|
* permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||||
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||||
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||||
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||||
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stddef.h>
|
||||||
|
#include <_ansi.h>
|
||||||
|
|
||||||
|
/* According to the run-time ABI for the ARM Architecture, this
|
||||||
|
function is allowed to corrupt only the integer core register
|
||||||
|
permitted to be corrupted by the [AAPCS] (r0-r3, ip, lr, and
|
||||||
|
CPSR).
|
||||||
|
|
||||||
|
Therefore, we can't just simply use alias to support the function
|
||||||
|
aeabi_memmove for the targets with FP register. Instead, versions
|
||||||
|
for these specific targets are written in assembler (in
|
||||||
|
aeabi_memmove-soft.S). */
|
||||||
|
|
||||||
|
/* NOTE: This ifdef MUST match the one in aeabi_memmove-soft.S. */
|
||||||
|
#if !defined (__SOFTFP__)
|
||||||
|
|
||||||
|
/* Defined in aeabi_memmove-soft.S. */
|
||||||
|
|
||||||
|
#else
|
||||||
|
/* Support the alias for the __aeabi_memmove which may
|
||||||
|
assume memory alignment. */
|
||||||
|
void __aeabi_memmove4 (void *dest, const void *source, size_t n)
|
||||||
|
_ATTRIBUTE ((alias ("__aeabi_memmove")));
|
||||||
|
|
||||||
|
void __aeabi_memmove8 (void *dest, const void *source, size_t n)
|
||||||
|
_ATTRIBUTE ((alias ("__aeabi_memmove")));
|
||||||
|
|
||||||
|
/* Support the routine __aeabi_memmove. Can't alias to memmove
|
||||||
|
because it's not defined in the same translation unit. */
|
||||||
|
void __aeabi_memmove (void *dest, const void *source, size_t n)
|
||||||
|
{
|
||||||
|
extern void memmove (void *dest, const void *source, size_t n);
|
||||||
|
memmove (dest, source, n);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
Loading…
Reference in New Issue