Merge branch 'master' of git://git.denx.de/u-boot-arm

[karo-tx-uboot.git] / examples / standalone / Makefile

diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile
index 5e2f2bcaeb45628ef88100faa1d8b351243f3620..45b0fdc1615f4208e62ea7155b81998b62d2cfe2 100644 (file)
--- a/examples/standalone/Makefile
+++ b/examples/standalone/Makefile
@@ -2,23 +2,7 @@
 # (C) Copyright 2000-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
-# 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 Foundation; 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
+# SPDX-License-Identifier:     GPL-2.0+
 #
 
 include $(TOPDIR)/config.mk
@@ -38,13 +22,19 @@ ELF-mpc8260                      += mem_to_mem_idma2intr
 ELF-ppc                          += sched
 ELF-oxc                          += eepro100_eeprom
 
-ELF := $(ELF-y) $(ELF-$(ARCH)) $(ELF-$(BOARD)) $(ELF-$(CPU))
-SREC = $(addsuffix .srec,$(ELF))
-BIN  = $(addsuffix .bin,$(ELF))
+#
+# Some versions of make do not handle trailing white spaces properly;
+# leading to build failures. The problem was found with GNU Make 3.80.
+# Using 'strip' as a workaround for the problem.
+#
+ELF := $(strip $(ELF-y) $(ELF-$(ARCH)) $(ELF-$(BOARD)) $(ELF-$(CPU)))
+
+SREC := $(addsuffix .srec,$(ELF))
+BIN  := $(addsuffix .bin,$(ELF))
 
 COBJS  := $(ELF:=.o)
 
-LIB    = $(obj)libstubs.a
+LIB    = $(obj)libstubs.o
 
 LIBAOBJS-$(ARCH)     :=
 LIBAOBJS-$(CPU)      :=
@@ -62,21 +52,48 @@ ELF := $(addprefix $(obj),$(ELF))
 BIN    := $(addprefix $(obj),$(BIN))
 SREC   := $(addprefix $(obj),$(SREC))
 
-gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
+# Add GCC lib
+ifdef USE_PRIVATE_LIBGCC
+ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
+PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
+else
+PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
+endif
+else
+PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
+endif
+PLATFORM_LIBS += $(PLATFORM_LIBGCC)
+export PLATFORM_LIBS
 
 CPPFLAGS += -I..
 
+# For PowerPC there's no need to compile standalone applications as a
+# relocatable executable.  The relocation data is not needed, and
+# also causes the entry point of the standalone application to be
+# inconsistent.
+ifeq ($(ARCH),powerpc)
+AFLAGS := $(filter-out $(RELFLAGS),$(AFLAGS))
+CFLAGS := $(filter-out $(RELFLAGS),$(CFLAGS))
+CPPFLAGS := $(filter-out $(RELFLAGS),$(CPPFLAGS))
+endif
+
+# We don't want gcc reordering functions if possible.  This ensures that an
+# application's entry point will be the first function in the application's
+# source file.
+CFLAGS_NTR := $(call cc-option,-fno-toplevel-reorder)
+CFLAGS += $(CFLAGS_NTR)
+
 all:   $(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF)
 
 #########################################################################
 $(LIB):        $(obj).depend $(LIBOBJS)
-               $(AR) $(ARFLAGS) $@ $(LIBOBJS)
+       $(call cmd_link_o_target, $(LIBOBJS))
 
 $(ELF):
 $(obj)%:       $(obj)%.o $(LIB)
-               $(LD) -g -Ttext $(STANDALONE_LOAD_ADDR) \
+               $(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
                        -o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
-                       -L$(gcclibdir) -lgcc
+                       $(PLATFORM_LIBS)
 
 $(SREC):
 $(obj)%.srec:  $(obj)%