API for external applications.

This is an API for external (standalone) applications running on top of
U-Boot, and is meant to be more extensible and robust than the existing
jumptable mechanism. It is similar to UNIX syscall approach. See api/README
for more details.

Included is the demo application using this new framework (api_examples).

Please note this is still an experimental feature, and is turned off by
default.

Signed-off-by: Rafal Jaworowski <raj@semihalf.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/api_examples/Makefile b/api_examples/Makefile
new file mode 100644
index 0000000..5812bcd
--- /dev/null
+++ b/api_examples/Makefile
@@ -0,0 +1,103 @@
+#
+# (C) Copyright 2007 Semihalf
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundatio; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+ifeq ($(ARCH),ppc)
+LOAD_ADDR = 0x40000
+endif
+
+#ifeq ($(ARCH),arm)
+#LOAD_ADDR = 0xc100000
+#endif
+
+include $(TOPDIR)/config.mk
+
+ELF	+= demo
+BIN	+= demo.bin
+
+#CFLAGS += -v
+
+COBJS	:= $(ELF:=.o)
+SOBJS	:= crt0.o
+ifeq ($(ARCH),ppc)
+SOBJS	+= ppcstring.o
+endif
+
+LIB	= $(obj)libglue.a
+LIBCOBJS= glue.o crc32.o ctype.o string.o vsprintf.o libgenwrap.o
+
+LIBOBJS	= $(addprefix $(obj),$(SOBJS) $(LIBCOBJS))
+
+SRCS	:= $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(SOBJS:.o=.S)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+ELF	:= $(addprefix $(obj),$(ELF))
+BIN	:= $(addprefix $(obj),$(BIN))
+
+gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
+
+CPPFLAGS += -I..
+
+all:	$(obj).depend $(OBJS) $(LIB) $(BIN) $(ELF)
+
+#########################################################################
+$(LIB):	$(obj).depend $(LIBOBJS)
+		$(AR) $(ARFLAGS) $@ $(LIBOBJS)
+
+$(ELF):
+$(obj)%:	$(obj)%.o $(LIB)
+		$(LD) $(obj)crt0.o -Ttext $(LOAD_ADDR) \
+			-o $@ $< $(LIB) \
+			-L$(gcclibdir) -lgcc
+
+$(BIN):
+$(obj)%.bin:	$(obj)%
+		$(OBJCOPY) -O binary $< $@ 2>/dev/null
+
+$(obj)crc32.c: 
+	@rm -f $(obj)crc32.c
+	ln -s $(src)../lib_generic/crc32.c $(obj)crc32.c
+
+$(obj)ctype.c:
+	@rm -f $(obj)ctype.c
+	ln -s $(src)../lib_generic/ctype.c $(obj)ctype.c
+
+$(obj)string.c:
+	@rm -f $(obj)string.c
+	ln -s $(src)../lib_generic/string.c $(obj)string.c
+
+$(obj)vsprintf.c:
+	@rm -f $(obj)vsprintf.c
+	ln -s $(src)../lib_generic/vsprintf.c $(obj)vsprintf.c
+
+ifeq ($(ARCH),ppc)
+$(obj)ppcstring.S:
+	@rm -f $(obj)ppcstring.S
+	ln -s $(src)../lib_ppc/ppcstring.S $(obj)ppcstring.S
+endif
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################