build: Add aarch64 support

Change-Id: If9594936a28355d89edd1a331b3b429dffa44184
Signed-off-by: Yibo Cai <yibo.cai@arm.com>

Makefile.am

@@ -21,6 +21,7 @@ examples=
 other_tests=
 lsrc_x86_64=
 lsrc_x86_32=
+lsrc_aarch64=
 lsrc_base_aliases=
 lsrc32=
 unit_tests32=
@@ -55,6 +56,10 @@ if CPU_X86_32
 libisal_la_SOURCES += ${lsrc_x86_32}
 endif
 
+if CPU_AARCH64
+libisal_la_SOURCES += ${lsrc_aarch64}
+endif
+
 if CPU_UNDEFINED
 libisal_la_SOURCES += ${lsrc_base_aliases}
 endif
@@ -93,19 +98,26 @@ test: $(addsuffix .run,$(unit_tests))
 	$<
 	@echo Completed run: $<
 
-# Support for yasm/nasm
+# Support for yasm/nasm/gas
 if USE_YASM
   as_filter = ${srcdir}/tools/yasm-filter.sh
 endif
 if USE_NASM
   as_filter = ${srcdir}/tools/nasm-filter.sh
 endif
+if CPU_AARCH64
+  as_filter = gcc
+endif
 
 CCAS = $(as_filter)
 EXTRA_DIST += tools/yasm-filter.sh tools/nasm-filter.sh
 
 AM_CFLAGS = ${my_CFLAGS} ${INCLUDE} $(src_include) ${D}
+if CPU_AARCH64
+AM_CCASFLAGS = ${AM_CFLAGS}
+else
 AM_CCASFLAGS = ${yasm_args} ${INCLUDE} ${src_include} ${DEFS} ${D}
+endif
 
 .asm.s:
 	@echo "  MKTMP   " $@;

configure.ac

@@ -28,9 +28,12 @@ AS_CASE([$host_cpu],
   [x86_64], [CPU="x86_64"],
   [amd64], [CPU="x86_64"],
   [i?86], [CPU="x86_32"],
+  [aarch64], [CPU="aarch64"],
+  [arm64], [CPU="aarch64"],
 )
 AM_CONDITIONAL([CPU_X86_64], [test "$CPU" = "x86_64"])
 AM_CONDITIONAL([CPU_X86_32], [test "$CPU" = "x86_32"])
+AM_CONDITIONAL([CPU_AARCH64], [test "$CPU" = "aarch64"])
 AM_CONDITIONAL([CPU_UNDEFINED], [test "x$CPU" = "x"])
 
 if test "$CPU" = "x86_64"; then

crc/Makefile.am

@@ -33,6 +33,7 @@ lsrc  += \
 
 lsrc_base_aliases += crc/crc_base_aliases.c
 lsrc_x86_32       += crc/crc_base_aliases.c
+lsrc_aarch64      += crc/crc_base_aliases.c
 
 lsrc_x86_64 += \
 	crc/crc16_t10dif_01.asm \

erasure_code/Makefile.am

@@ -30,6 +30,7 @@
 lsrc         += erasure_code/ec_base.c
 
 lsrc_base_aliases += erasure_code/ec_base_aliases.c
+lsrc_aarch64      += erasure_code/ec_base_aliases.c
 
 lsrc_x86_64  += \
 		erasure_code/ec_highlevel_func.c \

igzip/Makefile.am

@@ -38,6 +38,7 @@ lsrc        += 	igzip/igzip.c \
 
 lsrc_base_aliases += igzip/igzip_base_aliases.c igzip/proc_heap_base.c
 lsrc_x86_32       += igzip/igzip_base_aliases.c igzip/proc_heap_base.c
+lsrc_aarch64      += igzip/igzip_base_aliases.c igzip/proc_heap_base.c
 
 lsrc_x86_64 +=	igzip/igzip_body.asm \
 		igzip/igzip_finish.asm \

make.inc

@@ -104,7 +104,7 @@ CLEANFILES += $(O) *.o *.a $(all_tests) $(bin_PROGRAMS) $(lib_name) $(so_lib_nam
 
 lsrc += $(lsrc_$(host_cpu))
 O = bin
-lobj  += $(patsubst %.c,%.o,$(patsubst %.asm,%.o,$(lsrc) $(lsrc_intrinsic)))
+lobj  += $(patsubst %.c,%.o,$(patsubst %.S,%.o,$(patsubst %.asm,%.o,$(lsrc) $(lsrc_intrinsic))))
 objs  = $(addprefix $(O)/,$(notdir $(lobj)))
 
 
@@ -172,10 +172,16 @@ $(addsuffix .run,$(all_tests)): %.run : %
 # Other build rules
 msg = $(if $(DEBUG),DEBUG) $(patsubst 32,32-bit,$(host_cpu)) $D
 
+# yasm/nasm assembly files
 $(O)/%.o: %.asm
 	@echo "  ---> Building $< $(msg)"
 	@$(AS) $(ASFLAGS) -o $@ $<
 
+# gcc assembly files
+$(O)/%.o: $(host_cpu)/%.S
+	@echo "  ---> Building $< $(msg)"
+	@$(COMPILE.c) $(OUTPUT_OPTION) $<
+
 $(O)/%.o %.o: %.c
 	@echo "  ---> Building $< $(msg)"
 	@$(COMPILE.c) $(OUTPUT_OPTION) $<
@@ -215,6 +221,7 @@ soname      = $(so_lib_inst).$(word 1, $(subst ., ,$(version)))
 
 slib: $(so_lib_name)
 aobjs  += $(addprefix $(O)/,$(patsubst %.asm,%.o,$(filter %.asm,$(notdir $(lsrc) $(lsrc_intrinsic)))))
+aobjs  += $(addprefix $(O)/,$(patsubst %.S,%.o,$(filter %.S,$(notdir $(lsrc) $(lsrc_intrinsic)))))
 shared_objs  += $(addprefix $(O)/shared_ver_,$(patsubst %.c,%.o,$(filter %.c,$(notdir $(lsrc) $(lsrc_intrinsic)))))
 
 $(O)/shared_ver_%.o: %.c

mem/Makefile.am

@@ -30,6 +30,7 @@
 lsrc        += 	mem/mem_zero_detect_base.c
 
 lsrc_base_aliases += mem/mem_zero_detect_base_aliases.c
+lsrc_aarch64      += mem/mem_zero_detect_base_aliases.c
 
 lsrc_x86_64 += 	mem/mem_zero_detect_avx.asm \
 		mem/mem_zero_detect_sse.asm \

raid/Makefile.am

@@ -30,6 +30,7 @@
 lsrc        += 	raid/raid_base.c
 
 lsrc_base_aliases += raid/raid_base_aliases.c
+lsrc_aarch64      += raid/raid_base_aliases.c
 
 lsrc_x86_64 += \
 		raid/xor_gen_sse.asm \