sh: Add support for SH2A freestanding build
SH2A toolchains often only provide an fdpic version of libgcc. This
can't be used with bare-metal software like U-Boot, so this patch
provides the necessary functions extracted from libgcc.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index c0670cb..6aaf55a 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -21,8 +21,15 @@
include $(TOPDIR)/config.mk
LIB = $(obj)lib$(ARCH).o
+LIBGCC = $(obj)libgcc.o
SOBJS-y +=
+GLSOBJS += ashiftrt.o
+GLSOBJS += ashiftlt.o
+GLSOBJS += lshiftrt.o
+GLSOBJS += ashldi3.o
+GLSOBJS += lshrdi3.o
+GLSOBJS += movmem.o
COBJS-y += board.o
COBJS-y += bootm.o
@@ -37,10 +44,25 @@
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+LGOBJS := $(addprefix $(obj),$(GLSOBJS)) \
+ $(addprefix $(obj),$(GLCOBJS))
+
+# Always build libsh.o
+TARGETS := $(LIB)
+
+# Build private libgcc only when asked for
+ifdef USE_PRIVATE_LIBGCC
+TARGETS += $(LIBGCC)
+endif
+
+all: $(TARGETS)
$(LIB): $(obj).depend $(OBJS)
$(call cmd_link_o_target, $(OBJS))
+$(LIBGCC): $(obj).depend $(LGOBJS)
+ $(call cmd_link_o_target, $(LGOBJS))
+
#########################################################################
# defines $(obj).depend target