If we use $(CC -print-libgcc-file-name) without option -march=armv4t, we will link the wrong version libgcc.a(for ARMv5). That causes cpu core raising excptions when u-boot running on the board.
Signed-off-by:Paul Hsu pochun.hsu@gmail.com --- Makefile | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile index 4f1cb1b..978c9cd 100644 --- a/Makefile +++ b/Makefile @@ -259,6 +259,17 @@ LIBS := $(addprefix $(obj),$(LIBS)) LIBBOARD = board/$(BOARDDIR)/lib$(BOARD).a LIBBOARD := $(addprefix $(obj),$(LIBBOARD))
+#check ARMV4T +ifdef CPU +ifeq ("$(CPU)","arm920t") +ARMV4T := yes +endif +ifeq ("$(CPU)","arm720t") +ARMV4T := yes +endif +endif + + # Add GCC lib ifdef USE_PRIVATE_LIBGCC ifeq ("$(USE_PRIVATE_LIBGCC)", "yes") @@ -267,8 +278,12 @@ else PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc endif else +ifeq ("$(ARMV4T)","yes") +PLATFORM_LIBGCC = -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name -march=armv4t`) -lgcc +else PLATFORM_LIBGCC = -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc endif +endif PLATFORM_LIBS += $(PLATFORM_LIBGCC) export PLATFORM_LIBS