powerpc: Minimal private libgcc to build on Debian

[karo-tx-uboot.git] / arch / powerpc / lib / Makefile

diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 5f85502d1ca566a16a2ac3e480002bf4d8c83a4b..cdd62a2061f848dcc2fea75ce373e37e00856e8d 100644 (file)
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -23,14 +23,27 @@
 
 include $(TOPDIR)/config.mk
 
-LIB    = $(obj)lib$(ARCH).a
+## Build a couple of necessary functions into a private libgcc
+LIBGCC = $(obj)libgcc.o
+GLSOBJS        += _ashldi3.o
+GLSOBJS        += _ashrdi3.o
+GLSOBJS        += _lshrdi3.o
+LGOBJS := $(addprefix $(obj),$(GLSOBJS)) \
+          $(addprefix $(obj),$(GLCOBJS))
+
+## But only build it if the user asked for it
+ifdef USE_PRIVATE_LIBGCC
+TARGETS        += $(LIBGCC)
+endif
+
+LIB    = $(obj)lib$(ARCH).o
 
 SOBJS-y        += ppccache.o
 SOBJS-y        += ppcstring.o
 SOBJS-y        += ticks.o
 SOBJS-y        += reloc.o
 
-COBJS-y        += bat_rw.o
+COBJS-$(CONFIG_BAT_RW) += bat_rw.o
 COBJS-y        += board.o
 COBJS-y        += bootm.o
 COBJS-$(CONFIG_BOOTCOUNT_LIMIT) += bootcount.o
@@ -40,9 +53,27 @@ COBJS-y      += interrupts.o
 COBJS-$(CONFIG_CMD_KGDB) += kgdb.o
 COBJS-y        += time.o
 
-SRCS   := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+# Workaround for local bus unaligned access problems
+# on MPC512x and MPC5200
+ifdef CONFIG_MPC512X
+$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+COBJS-y += memcpy_mpc5200.o
+endif
+ifdef CONFIG_MPC5200
+$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+COBJS-y += memcpy_mpc5200.o
+endif
+
+COBJS  += $(sort $(COBJS-y))
+
+SRCS   := $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
+          $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS   := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
 
+TARGETS += $(LIB)
+
+all: $(TARGETS)
+
 $(LIB):        $(obj).depend $(OBJS)
        @if ! $(CROSS_COMPILE)readelf -S $(OBJS) | grep -q '\.fixup.*PROGBITS';\
        then \
@@ -50,7 +81,10 @@ $(LIB):      $(obj).depend $(OBJS)
                echo "       Upgrade to a recent toolchain."; \
                exit 1; \
        fi;
-       $(AR) $(ARFLAGS) $@ $(OBJS)
+       $(call cmd_link_o_target, $(OBJS))
+
+$(LIBGCC): $(obj).depend $(LGOBJS)
+       $(call cmd_link_o_target, $(LGOBJS))
 
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