libpayload: Implement gcc wrappers for libpayload

libpayload uses a ton of flags and other scary gcc and ld options.  These
wrappers hide most of that from the user, so that using libpayload is as
easy as lpgcc -o hello hello.c

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3226 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

payloads/libpayload/Makefile

@@ -29,6 +29,7 @@
 
 BASE_DIR=$(shell pwd)
 KCONFIG_DIR=util/kconfig
+DESTDIR=/opt
 
 ifeq (.config, $(wildcard .config))
 dot-config := 1
@@ -49,9 +50,10 @@ all: .config
 	@echo "Configuration completed - type make to build libpayload"
 else
 -include .config
-endif
 
-PLATFORM-$(CONFIG_TARGET_I386) += i386/Makefile.inc
+ARCHDIR-$(CONFIG_TARGET_I386) := i386
+
+PLATFORM-y += $(ARCHDIR-y)/Makefile.inc
 TARGETS-y :=
 
 BUILD-y := crypto/Makefile.inc libc/Makefile.inc drivers/Makefile.inc
@@ -64,8 +66,14 @@ INCLUDES += -I$(shell $(CC) -print-search-dirs | head -n 1 | cut -d' ' -f2)inclu
 # TODO: Re-add -Os as soon as we find out why it caused problems.
 CFLAGS := -Wall -Werror -fno-stack-protector -nostdinc $(INCLUDES)
 
-libpayload.a: $(TARGETS-y)
+lib: lib/libpayload.a lib/$(ARCHDIR-y)/head.o
-	$(AR) rc $@ $(TARGETS-y)
+
+lib/libpayload.a: $(TARGETS-y)
+	@ $(AR) rc $@ $(TARGETS-y)
+
+lib/$(ARCHDIR-y)/head.o: $(ARCHDIR-y)/head.o
+	@ mkdir -p lib/$(ARCHDIR-y)
+	@ cp $< $@
 
 %.o: %.c
 	$(CC) -m32 $(CFLAGS) -c -o $@ $<
@@ -73,15 +81,26 @@ libpayload.a: $(TARGETS-y)
 %.o: %.S
 	$(AS) --32 -o $@ $<
 
+install: lib
+	install -m 755 -d $(DESTDIR)/libpayload/lib
+	cp -r lib/* $(DESTDIR)/libpayload/lib/
+	install -m 755 -d $(DESTDIR)/libpayload/include
+	cp -r include/* $(DESTDIR)/libpayload/include/
+	install -m 755 -d $(DESTDIR)/libpayload/bin
+	install -m 755 bin/lpgcc $(DESTDIR)/libpayload/bin
+	install -m 755 bin/lpas $(DESTDIR)/libpayload/bin
+	install -m 644 bin/lp.functions $(DESTDIR)/libpayload/bin
+
 clean:
 	@ rm -f $(TARGETS-y)
-	@ rm -f libpayload.a
+	@ rm -f lib/libpayload.a lib/$(ARCHDIR-y)/head.o
 
 distclean: clean
 	@ make -C $(KCONFIG_DIR) clean
 	@ rm -f $(KCONFIG_DIR)/lxdialog/lxdialog
 	@ rm -f .config .kconfig.d  include/autoconf.h
-	
+endif
+
 ifeq ($(config-targets),1)
 
 $(KCONFIG_DIR)/conf:

payloads/libpayload/bin/lp.functions

@@ -0,0 +1,60 @@
+## This file is part of the libpayload project.
+##
+## Copyright (C) 2008 Advanced Micro Devices, Inc.
+##
+## Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions
+## are met:
+## 1. Redistributions of source code must retain the above copyright
+##    notice, this list of conditions and the following disclaimer.
+## 2. Redistributions in binary form must reproduce the above copyright
+##    notice, this list of conditions and the following disclaimer in the
+##    documentation and/or other materials provided with the distribution.
+## 3. The name of the author may not be used to endorse or promote products
+##    derived from this software without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+## ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+## SUCH DAMAGE.
+
+# Common functions used by the libpayload wrappers
+
+error() {
+	echo "Error: $1"
+	exit 1
+}
+
+warn() {
+	echo "Warning: $1"
+}
+
+# If the user didn't specify LIBPAYLOAD_PREFIX, then preload it
+# with the default prefix value
+
+if [ -z "$LIBPAYLOAD_PREFIX" ]; then
+	LIBPAYLOAD_PREFIX=$DEFAULT_PREFIX/libpayload
+fi
+
+# If we're lucky, then everything was installed correctly, and the
+# library is locatd in the same prefix as ourselves.  If not, then
+# use the value of LIBPAYLOAD_PREFIX
+
+if [ -f $BASE/../lib/libpayload.a ]; then
+	_LIBDIR=$BASE/../lib
+else
+	_LIBDIR=$LIBPAYLOAD_PREFIX/lib
+fi
+
+if [ -d $BASE/../include/ ]; then
+	_INCDIR=$BASE/../include
+else
+	_INCDIR=$LIBPAYLOAD_PREFIX/include
+fi

payloads/libpayload/bin/lpas

@@ -0,0 +1,72 @@
+#!/bin/sh
+## This file is part of the libpayload project.
+##
+## Copyright (C) 2008 Advanced Micro Devices, Inc.
+##
+## Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions
+## are met:
+## 1. Redistributions of source code must retain the above copyright
+##    notice, this list of conditions and the following disclaimer.
+## 2. Redistributions in binary form must reproduce the above copyright
+##    notice, this list of conditions and the following disclaimer in the
+##    documentation and/or other materials provided with the distribution.
+## 3. The name of the author may not be used to endorse or promote products
+##    derived from this software without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+## ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+## SUCH DAMAGE.
+
+# AS wrapper for libpayload
+
+DEFAULT_PREFIX=/opt
+DEFAULT_AS=as
+
+BASE=`dirname $0`
+
+# This will set the _LIBDIR and _INCDIR variables used below
+. $BASE/lp.functions
+
+DEBUGME=0
+
+# This variable will contain the command line that the user wants to
+# pass to gas
+
+CMDLINE=
+
+# Process various flags that would change our behavior
+
+while [ $# -gt 0 ]; do
+	case $1 in
+	    --32)
+		shift
+		continue
+		;;
+	    --64)
+		error "Invalid option --64 - only 32 bit architectures are supported"
+		;;
+	    -debug-wrapper)
+		DEBUGME=1
+		shift
+		continue
+		;;
+	    *)
+		;;
+	esac
+
+	CMDLINE="$CMDLINE $1"
+	shift
+done
+
+_ASFLAGS="--32 -I$_INCDIR"
+
+$DEFAULT_AS $_ASFLAGS $CMDLINE

payloads/libpayload/bin/lpgcc

@@ -0,0 +1,104 @@
+#!/bin/sh
+## This file is part of the libpayload project.
+##
+## Copyright (C) 2008 Advanced Micro Devices, Inc.
+##
+## Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions
+## are met:
+## 1. Redistributions of source code must retain the above copyright
+##    notice, this list of conditions and the following disclaimer.
+## 2. Redistributions in binary form must reproduce the above copyright
+##    notice, this list of conditions and the following disclaimer in the
+##    documentation and/or other materials provided with the distribution.
+## 3. The name of the author may not be used to endorse or promote products
+##    derived from this software without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+## ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+## SUCH DAMAGE.
+
+# GCC wrapper for libpayload
+
+DEFAULT_PREFIX=/opt
+DEFAULT_CC=gcc
+
+BASE=`dirname $0`
+
+# This will set the _LIBDIR and _INCDIR variables used below
+. $BASE/lp.functions
+
+trygccoption() {
+	$DEFAULT_CC $1 -S -xc /dev/null -o .$$.tmp > /dev/null
+	rm -f .$$.tmp
+	return $?
+}
+
+DEBUGME=0
+DOLINK=1
+
+# This variable will contain the command line that the user wants to
+# pass to gas
+
+CMDLINE=
+
+# Process various flags that would change our behavior
+
+while [ $# -gt 0 ]; do
+	case $1 in
+	    -m32|-fno-stack-protector)
+		shift
+		continue
+		;;
+	    -m64)
+		error "Invalid option --64 - only 32 bit architectures are supported"
+		;;
+	    -c)
+		DOLINK=0
+		;;
+	    -debug-wrapper)
+		DEBUGME=1
+		shift
+		continue
+		;;
+	    *)
+		;;
+	esac
+
+	CMDLINE="$CMDLINE $1"
+	shift
+done
+
+_CFLAGS="-m32 -nostdinc -nostdlib -I$_INCDIR"
+
+# Check for the -fno-stack-protector silliness
+
+trygccoption -fno-stack-protector
+[ $? -eq 0 ] && _CFLAGS="$_CFLAGS -fno-stack-protector"
+
+_CFLAGS="$_CFLAGS -I`$DEFAULT_CC -m32 -print-search-dirs | head -n 1 | cut -d' ' -f2`include"
+
+_LDFLAGS="-Wl,-T,$_LIBDIR/libpayload.ldscript -static"
+
+if [ $DOLINK -eq 0 ]; then
+    if [ $DEBUGME -eq 1 ]; then
+    	echo "$DEFAULT_CC $_CFLAGS $CMDLINE"
+    fi
+
+    $DEFAULT_CC $_CFLAGS $CMDLINE
+else
+    _LIBGCC=`$DEFAULT_CC -m32 -print-libgcc-file-name`
+    if [ $DEBUGME -eq 1 ]; then
+	echo "$DEFAULT_CC $_CFLAGS $_LDFLAGS $CMDLINE $_LIBDIR/i386/head.o $_LIBDIR/libpayload.a $_LIBGCC"
+    fi
+
+    $DEFAULT_CC $_CFLAGS $_LDFLAGS $CMDLINE $_LIBDIR/i386/head.o $_LIBDIR/libpayload.a $_LIBGCC
+fi

payloads/libpayload/sample/Makefile

@@ -29,23 +29,17 @@
 
 # Sample libpayload Makefile.
 
-CC = gcc
+CC := ../bin/lpgcc
-CROSS_CFLAGS = -m32
 
-INCLUDES = -I../include
+CFLAGS := -Wall -Werror -Os
-INCLUDES += -I$(shell $(CC) $(CROSS_CFLAGS) -print-search-dirs | head -n 1 | cut -d' ' -f2)include
-
-LIBPAYLOAD = ../libpayload.a
-LIBGCC := $(shell $(CC) $(CROSS_CFLAGS) -print-libgcc-file-name)
-CFLAGS := -Wall -Werror -Os -fno-stack-protector -nostdinc $(INCLUDES)
 
 all: hello.elf
 
 hello.elf: hello.o
-	ld -T ../libpayload.ldscript -o $@ hello.o ../i386/head.o $(LIBPAYLOAD) $(LIBGCC)
+	$(CC) -o $@ hello.o
 
 hello.o: hello.c
-	$(CC) $(CROSS_CFLAGS) $(CFLAGS) -c -o $@ $<
+	$(CC) $(CFLAGS) -c -o $@ $<
 
 clean:
 	rm -f hello.elf hello.o