From 52b1bf2c5cd2f8af880dab503d0039b35570665b Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Thu, 23 Jul 2009 13:15:59 +0200 Subject: Make linking against libgcc configurable Many (especially ARM) tool chains seem to come with broken or otherwise unusable (for the purposes of builing U-Boot) run-time support libraries `libgcc.a'. By using the "USE_PRIVATE_LIBGCC" setting we allow to use alternative libraries instead. "USE_PRIVATE_LIBGCC" can either be set as an environment variable in the shell, or as a command line argument when running "make", i. e. $ make USE_PRIVATE_LIBGCC=yes or $ USE_PRIVATE_LIBGCC=yes $ export USE_PRIVATE_LIBGCC $ make The value of "USE_PRIVATE_LIBGCC" is the name of the directory which contains the alternative run-time support library `libgcc.a'. The special value "yes" selects the directory $(OBJTREE)/lib_$(ARCH) . Note that not all architectures provide an alternative `libgcc.a' in their lib_$(ARCH) directories - so far, only ARM does. Signed-off-by: Wolfgang Denk Cc: Jean-Christophe PLAGNIOL-VILLARD Cc: Prafulla Wadaskar cc: Stefan Roese --- board/trab/Makefile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'board/trab') diff --git a/board/trab/Makefile b/board/trab/Makefile index 3a92c0d..2afad88 100644 --- a/board/trab/Makefile +++ b/board/trab/Makefile @@ -36,8 +36,6 @@ SOBJS := $(addprefix $(obj),$(SOBJS)) OBJS_FKT := $(addprefix $(obj),$(COBJS_FKT)) -gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`) - LOAD_ADDR = 0xc100000 ######################################################################### @@ -52,7 +50,7 @@ $(obj)trab_fkt.srec: $(OBJS_FKT) $(LIB) -L$(obj)../../examples/standalone -lstubs \ -L$(obj)../../lib_generic -lgeneric \ $(obj)../../lib_arm/div0.o \ - $(obj)../../lib_arm/_*.o + $(PLATFORM_LIBS) $(OBJCOPY) -O srec $(<:.o=) $@ $(obj)trab_fkt.bin: $(obj)trab_fkt.srec -- cgit v1.1