From 554f33c48d069a0cbd1748c87ee9d4f4e22f8c01 Mon Sep 17 00:00:00 2001 From: Corinna Vinschen Date: Tue, 17 Feb 2015 09:06:51 +0000 Subject: * 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. --- newlib/ChangeLog | 11 +++++ newlib/libc/machine/arm/Makefile.am | 9 +++- newlib/libc/machine/arm/Makefile.in | 26 +++++++++- newlib/libc/machine/arm/aeabi_memmove-arm.S | 63 ++++++++++++++++++++++++ newlib/libc/machine/arm/aeabi_memmove-soft.S | 52 ++++++++++++++++++++ newlib/libc/machine/arm/aeabi_memmove-thumb.S | 64 +++++++++++++++++++++++++ newlib/libc/machine/arm/aeabi_memmove-thumb2.S | 66 ++++++++++++++++++++++++++ newlib/libc/machine/arm/aeabi_memmove.c | 63 ++++++++++++++++++++++++ 8 files changed, 351 insertions(+), 3 deletions(-) create mode 100644 newlib/libc/machine/arm/aeabi_memmove-arm.S create mode 100644 newlib/libc/machine/arm/aeabi_memmove-soft.S create mode 100644 newlib/libc/machine/arm/aeabi_memmove-thumb.S create mode 100644 newlib/libc/machine/arm/aeabi_memmove-thumb2.S create mode 100644 newlib/libc/machine/arm/aeabi_memmove.c (limited to 'newlib') diff --git a/newlib/ChangeLog b/newlib/ChangeLog index c7a2f1b78..17906c32d 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,14 @@ +2015-02-17 Hale Wang + + * 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. + 2015-02-06 Nick Clifton * libc/include/complex.h (cabsl): Add prototype. diff --git a/newlib/libc/machine/arm/Makefile.am b/newlib/libc/machine/arm/Makefile.am index dc17690ac..e1d768a0c 100644 --- a/newlib/libc/machine/arm/Makefile.am +++ b/newlib/libc/machine/arm/Makefile.am @@ -49,7 +49,8 @@ endif !OPT_SIZE lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \ $(MEMCPY_SRC) $(MEMCHR_SRC) $(STRLEN_SRC) \ - strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S + strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S \ + aeabi_memmove.c aeabi_memmove-soft.S lib_a_CCASFLAGS=$(AM_CCASFLAGS) lib_a_CFLAGS = $(AM_CFLAGS) @@ -62,6 +63,8 @@ CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host MEMCPY_DEP=memcpy-armv7a.S memcpy-armv7m.S STRCMP_DEP=strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \ strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S +AEABI_MEMMOVE_DEP=aeabi_memmove-thumb.S aeabi_memmove-thumb2.S \ + aeabi_memmove-arm.S $(lpfx)memcpy.o: $(MEMCPY_DEP) @@ -70,3 +73,7 @@ $(lpfx)memcpy.obj: $(MEMCPY_DEP) $(lpfx)strcmp.o: $(STRCMP_DEP) $(lpfx)strcmp.obj: $(STRCMP_DEP) + +$(lpfx)aeabi_memmove.o: $(AEABI_MEMMOVE_DEP) + +$(lpfx)aeabi_memmove.obj: $(AEABI_MEMMOVE_DEP) diff --git a/newlib/libc/machine/arm/Makefile.in b/newlib/libc/machine/arm/Makefile.in index db65405ca..6c44feff4 100644 --- a/newlib/libc/machine/arm/Makefile.in +++ b/newlib/libc/machine/arm/Makefile.in @@ -85,7 +85,9 @@ am_lib_a_OBJECTS = lib_a-setjmp.$(OBJEXT) lib_a-access.$(OBJEXT) \ lib_a-strcmp.$(OBJEXT) lib_a-strcpy.$(OBJEXT) $(am__objects_1) \ $(am__objects_2) $(am__objects_3) lib_a-strlen-armv7.$(OBJEXT) \ lib_a-aeabi_memcpy.$(OBJEXT) \ - lib_a-aeabi_memcpy-armv7a.$(OBJEXT) + lib_a-aeabi_memcpy-armv7a.$(OBJEXT) \ + lib_a-aeabi_memmove.$(OBJEXT) \ + lib_a-aeabi_memmove-soft.$(OBJEXT) lib_a_OBJECTS = $(am_lib_a_OBJECTS) DEFAULT_INCLUDES = -I.@am__isrc@ depcomp = @@ -232,7 +234,8 @@ noinst_LIBRARIES = lib.a @OPT_SIZE_TRUE@MEMCPY_OBJ = lib_a_SOURCES = setjmp.S access.c strcmp.S strcpy.c \ $(MEMCPY_SRC) $(MEMCHR_SRC) $(STRLEN_SRC) \ - strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S + strlen-armv7.S aeabi_memcpy.c aeabi_memcpy-armv7a.S \ + aeabi_memmove.c aeabi_memmove-soft.S lib_a_CCASFLAGS = $(AM_CCASFLAGS) lib_a_CFLAGS = $(AM_CFLAGS) @@ -244,6 +247,9 @@ MEMCPY_DEP = memcpy-armv7a.S memcpy-armv7m.S STRCMP_DEP = strcmp-arm-tiny.S strcmp-armv4.S strcmp-armv4t.S strcmp-armv6.S \ strcmp-armv6m.S strcmp-armv7.S strcmp-armv7m.S +AEABI_MEMMOVE_DEP = aeabi_memmove-thumb.S aeabi_memmove-thumb2.S \ + aeabi_memmove-arm.S + all: all-am .SUFFIXES: @@ -338,6 +344,12 @@ lib_a-aeabi_memcpy-armv7a.o: aeabi_memcpy-armv7a.S lib_a-aeabi_memcpy-armv7a.obj: aeabi_memcpy-armv7a.S $(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` +lib_a-aeabi_memmove-soft.o: aeabi_memmove-soft.S + $(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 + +lib_a-aeabi_memmove-soft.obj: aeabi_memmove-soft.S + $(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` + .c.o: $(COMPILE) -c $< @@ -368,6 +380,12 @@ lib_a-aeabi_memcpy.o: aeabi_memcpy.c lib_a-aeabi_memcpy.obj: aeabi_memcpy.c $(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` +lib_a-aeabi_memmove.o: aeabi_memmove.c + $(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 + +lib_a-aeabi_memmove.obj: aeabi_memmove.c + $(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` + ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES) list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \ unique=`for i in $$list; do \ @@ -547,6 +565,10 @@ $(lpfx)strcmp.o: $(STRCMP_DEP) $(lpfx)strcmp.obj: $(STRCMP_DEP) +$(lpfx)aeabi_memmove.o: $(AEABI_MEMMOVE_DEP) + +$(lpfx)aeabi_memmove.obj: $(AEABI_MEMMOVE_DEP) + # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: diff --git a/newlib/libc/machine/arm/aeabi_memmove-arm.S b/newlib/libc/machine/arm/aeabi_memmove-arm.S new file mode 100644 index 000000000..371f21567 --- /dev/null +++ b/newlib/libc/machine/arm/aeabi_memmove-arm.S @@ -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. + */ + + .arm + .syntax divided + .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 + bhi .L2 +.L4: + sub r2, r0, #1 + b .L3 +.L2: + cmp r0, r3 + addcc r1, r0, r2 + rsbcc r2, r3, r2 + bcs .L4 +.L5: + cmn r3, r2 + ldrneb ip, [r3, #-1]! + strneb ip, [r1, #-1]! + bne .L5 +.L11: + bx lr +.L3: + cmp r1, r3 + ldrneb ip, [r1], #1 + strneb ip, [r2, #1]! + bne .L3 +.L12: + bx lr + .cfi_endproc + .size __aeabi_memmove, . - __aeabi_memmove diff --git a/newlib/libc/machine/arm/aeabi_memmove-soft.S b/newlib/libc/machine/arm/aeabi_memmove-soft.S new file mode 100644 index 000000000..010e266d7 --- /dev/null +++ b/newlib/libc/machine/arm/aeabi_memmove-soft.S @@ -0,0 +1,52 @@ +/* + * 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 diff --git a/newlib/libc/machine/arm/aeabi_memmove-thumb.S b/newlib/libc/machine/arm/aeabi_memmove-thumb.S new file mode 100644 index 000000000..52e9e07b6 --- /dev/null +++ b/newlib/libc/machine/arm/aeabi_memmove-thumb.S @@ -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 diff --git a/newlib/libc/machine/arm/aeabi_memmove-thumb2.S b/newlib/libc/machine/arm/aeabi_memmove-thumb2.S new file mode 100644 index 000000000..d408f8524 --- /dev/null +++ b/newlib/libc/machine/arm/aeabi_memmove-thumb2.S @@ -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 diff --git a/newlib/libc/machine/arm/aeabi_memmove.c b/newlib/libc/machine/arm/aeabi_memmove.c new file mode 100644 index 000000000..1e2bbaf1f --- /dev/null +++ b/newlib/libc/machine/arm/aeabi_memmove.c @@ -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 +#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 -- cgit v1.2.3