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Unconditionally set utility program variables in Makefile to allow CROSS_COMPILE to work.

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stappers and xl0 pointed out that gnu make sets some variables, so ?=
is ineffective in some cases where we use it.. Cross-compilation
requires that some variables can be overridden in the
src/$(ARCH)/Config file, so include that file _after_ utility program
variables are set.
This commit is contained in:
Marty Connor 2008-01-02 12:50:30 -05:00
parent af56768e98
commit a9b8197f64
1 changed files with 52 additions and 54 deletions
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106
src/Makefile
View File

@ -1,3 +1,7 @@
# Location to place generated files
#
BIN := bin
# Initialise variables that get added to throughout the various Makefiles
#
MAKEDEPS := Makefile .toolcheck .echocheck
@ -9,34 +13,34 @@ ROMS :=
MEDIA :=
NON_AUTO_MEDIA :=
# Grab the central Config file.
# Locations of utilities
#
MAKEDEPS += Config
include Config
# Location to place generated files
#
BIN := bin
# If no architecture is specified in Config or on the command-line,
# use that of the build machine.
#
ifndef ARCH
ARCH := $(shell uname -m | sed -e s,i[3456789]86,i386,)
endif
# handle x86_64 like i386, but set -m32 option for 32bit code only
ifeq ($(ARCH),x86_64)
ARCH := i386
CFLAGS += -m32
ASFLAGS += --32
LDFLAGS += -m elf_i386
endif
# Drag in architecture-specific Config
#
MAKEDEPS += arch/$(ARCH)/Config
include arch/$(ARCH)/Config
HOST_CC := gcc
RM := rm -f
TOUCH := touch
MKDIR := mkdir
CP := cp
ECHO := echo
PRINTF := printf
PERL := /usr/bin/perl
CC := $(CROSS_COMPILE)gcc
CPP := $(CROSS_COMPILE)gcc -E -Wp,-Wall
AS := $(CROSS_COMPILE)as
LD := $(CROSS_COMPILE)ld
SIZE := $(CROSS_COMPILE)size
AR := $(CROSS_COMPILE)ar
RANLIB := $(CROSS_COMPILE)ranlib
OBJCOPY := $(CROSS_COMPILE)objcopy
NM := $(CROSS_COMPILE)nm
OBJDUMP := $(CROSS_COMPILE)objdump
PARSEROM := $(PERL) ./util/parserom.pl
MAKEROM := $(PERL) ./util/makerom.pl
MKCONFIG := $(PERL) ./util/mkconfig.pl
SYMCHECK := $(PERL) ./util/symcheck.pl
SORTOBJDUMP := $(PERL) ./util/sortobjdump.pl
NRV2B := ./util/nrv2b
ZBIN := ./util/zbin
DOXYGEN := doxygen
# If invoked with no build target, print out a helpfully suggestive
# message.
@ -64,34 +68,28 @@ noargs : blib $(BIN)/NIC $(BIN)/gpxe.dsk $(BIN)/gpxe.iso $(BIN)/gpxe.usb
@$(ECHO)
@$(ECHO) '==========================================================='
# Locations of utilities
# Grab the central Config file.
#
HOST_CC ?= gcc
CPP ?= gcc -E -Wp,-Wall
RM ?= rm -f
TOUCH ?= touch
MKDIR ?= mkdir
CP ?= cp
ECHO ?= echo
PRINTF ?= printf
PERL ?= /usr/bin/perl
CC ?= $(CROSS_COMPILE)gcc
AS ?= $(CROSS_COMPILE)as
LD ?= $(CROSS_COMPILE)ld
SIZE ?= $(CROSS_COMPILE)size
AR ?= $(CROSS_COMPILE)ar
RANLIB ?= $(CROSS_COMPILE)ranlib
OBJCOPY ?= $(CROSS_COMPILE)objcopy
NM ?= $(CROSS_COMPILE)nm
OBJDUMP ?= $(CROSS_COMPILE)objdump
PARSEROM ?= $(PERL) ./util/parserom.pl
MAKEROM ?= $(PERL) ./util/makerom.pl
MKCONFIG ?= $(PERL) ./util/mkconfig.pl
SYMCHECK ?= $(PERL) ./util/symcheck.pl
SORTOBJDUMP ?= $(PERL) ./util/sortobjdump.pl
NRV2B ?= ./util/nrv2b
ZBIN ?= ./util/zbin
DOXYGEN ?= doxygen
MAKEDEPS += Config
include Config
# If no architecture is specified in Config or on the command-line,
# use that of the build machine.
#
ARCH ?= $(shell uname -m | sed -e s,i[3456789]86,i386,)
# handle x86_64 like i386, but set -m32 option for 32bit code only
ifeq ($(ARCH),x86_64)
ARCH := i386
CFLAGS += -m32
ASFLAGS += --32
LDFLAGS += -m elf_i386
endif
# Drag in architecture-specific Config
#
MAKEDEPS += arch/$(ARCH)/Config
include arch/$(ARCH)/Config
# Common flags
#