Reinstate CONFIG_CROSS_COMPILE_PREFIX
This commit is contained in:
Denis Vlasenko
parent
cd2663f15e
commit
b8e653bfbf
10
Config.in
10
Config.in
@ -363,6 +363,16 @@ config LFS
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cp, mount, tar, and many others. If you want to access files larger
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than 2 Gigabytes, enable this option. Otherwise, leave it set to 'N'.
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config CROSS_COMPILER_PREFIX
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string "Cross Compiler prefix"
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default ""
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help
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If you want to build BusyBox with a cross compiler, then you
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will need to set this to the cross-compiler prefix, for example,
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"i386-uclibc-". Note that CROSS_COMPILE environment variable
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or "make CROSS_COMPILE=xxx ..." will override this selection.
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For native build leave it empty.
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endmenu
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menu 'Debugging Options'
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38
Makefile
38
Makefile
@ -142,17 +142,6 @@ VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
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export srctree objtree VPATH TOPDIR
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# SUBARCH tells the usermode build what the underlying arch is. That is set
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# first, and if a usermode build is happening, the "ARCH=um" on the command
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# line overrides the setting of ARCH below. If a native build is happening,
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# then ARCH is assigned, getting whatever value it gets normally, and
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# SUBARCH is subsequently ignored.
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SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
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-e s/arm.*/arm/ -e s/sa110/arm/ \
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-e s/s390x/s390/ -e s/parisc64/parisc/ \
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
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# Cross compiling and selecting different set of gcc/bin-utils
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# ---------------------------------------------------------------------------
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#
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@ -172,8 +161,33 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
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# Default value for CROSS_COMPILE is not to prefix executables
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# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
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ARCH ?= $(SUBARCH)
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CROSS_COMPILE ?=
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# bbox: we may have CONFIG_CROSS_COMPILER_PREFIX in .config,
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# and it has not been included yet... thus using an awkward syntax.
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ifeq ($(CROSS_COMPILE),)
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CROSS_COMPILE := $(shell grep ^CONFIG_CROSS_COMPILER_PREFIX .config 2>/dev/null)
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CROSS_COMPILE := $(subst CONFIG_CROSS_COMPILER_PREFIX=,,$(CROSS_COMPILE))
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CROSS_COMPILE := $(subst ",,$(CROSS_COMPILE))
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endif
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# SUBARCH tells the usermode build what the underlying arch is. That is set
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# first, and if a usermode build is happening, the "ARCH=um" on the command
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# line overrides the setting of ARCH below. If a native build is happening,
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# then ARCH is assigned, getting whatever value it gets normally, and
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# SUBARCH is subsequently ignored.
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ifneq ($(CROSS_COMPILE),)
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SUBARCH := $(shell echo $(CROSS_COMPILE) | cut -d- -f1)
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else
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SUBARCH := $(shell uname -m)
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endif
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SUBARCH := $(shell echo $(SUBARCH) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
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-e s/arm.*/arm/ -e s/sa110/arm/ \
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-e s/s390x/s390/ -e s/parisc64/parisc/ \
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
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ARCH ?= $(SUBARCH)
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$(warning ARCH=$(ARCH) SUBARCH=$(SUBARCH))
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# Architecture as present in compile.h
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UTS_MACHINE := $(ARCH)
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@ -452,7 +452,7 @@ enum {
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/* The system calls unchanged between 2.0 and 2.1. */
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unsigned long create_module(const char *, size_t);
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int delete_module(const char *);
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int delete_module(const char *module, unsigned int flags);
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#endif /* module.h */
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@ -4141,18 +4141,18 @@ int insmod_main(int argc, char **argv)
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* now we can load them directly into the kernel memory
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*/
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if (!obj_load_progbits(fp, f, (char*)m_addr)) {
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delete_module(m_name);
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delete_module(m_name, 0);
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goto out;
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}
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#endif
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if (!obj_relocate(f, m_addr)) {
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delete_module(m_name);
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delete_module(m_name, 0);
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goto out;
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}
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if (!new_init_module(m_name, f, m_size)) {
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delete_module(m_name);
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delete_module(m_name, 0);
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goto out;
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}
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@ -1,4 +1,7 @@
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# This is completely unsupported.
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#
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# Uasge: make -f scripts/Makefile.IMA
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#
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# Fix COMBINED_COMPILE upstream (in the Kbuild) and propagate
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# the changes back
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srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
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@ -11,6 +14,24 @@ MAKEFLAGS += --include-dir=$(srctree)
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default: busybox
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include .config
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# Cross compiling and selecting different set of gcc/bin-utils
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ifeq ($(CROSS_COMPILE),)
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CROSS_COMPILE := $(subst ",,$(CONFIG_CROSS_COMPILER_PREFIX))
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endif
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ifneq ($(CROSS_COMPILE),)
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SUBARCH := $(shell echo $(CROSS_COMPILE) | cut -d- -f1)
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else
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SUBARCH := $(shell uname -m)
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endif
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SUBARCH := $(shell echo $(SUBARCH) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
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-e s/arm.*/arm/ -e s/sa110/arm/ \
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-e s/s390x/s390/ -e s/parisc64/parisc/ \
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
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ARCH ?= $(SUBARCH)
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ifndef HOSTCC
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HOSTCC = cc
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endif
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@ -27,19 +48,11 @@ OBJDUMP = $(CROSS_COMPILE)objdump
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CFLAGS := $(CFLAGS)
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CPPFLAGS+= -D"KBUILD_STR(s)=\#s" #-Q
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include .config
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# We need some generic definitions
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include $(srctree)/scripts/Kbuild.include
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include Makefile.flags
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SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
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-e s/arm.*/arm/ -e s/sa110/arm/ \
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-e s/s390x/s390/ -e s/parisc64/parisc/ \
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
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ARCH ?= $(SUBARCH)
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# Cross compiling and selecting different set of gcc/bin-utils
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-include $(srctree)/arch/$(ARCH)/Makefile
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ifdef CONFIG_FEATURE_COMPRESS_USAGE
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usage_stuff = include/usage_compressed.h
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