From c3e728fbdfa6a92a9b07e46d0ae0da7259e29d35 Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Wed, 9 Apr 2008 23:05:59 +0000 Subject: [PATCH] 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 Acked-by: Uwe Hermann git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3226 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- payloads/libpayload/Makefile | 31 +++++- payloads/libpayload/bin/lp.functions | 60 ++++++++++ payloads/libpayload/bin/lpas | 72 ++++++++++++ payloads/libpayload/bin/lpgcc | 104 ++++++++++++++++++ .../libpayload/{ => lib}/libpayload.ldscript | 0 payloads/libpayload/sample/Makefile | 14 +-- 6 files changed, 265 insertions(+), 16 deletions(-) create mode 100644 payloads/libpayload/bin/lp.functions create mode 100755 payloads/libpayload/bin/lpas create mode 100755 payloads/libpayload/bin/lpgcc rename payloads/libpayload/{ => lib}/libpayload.ldscript (100%) diff --git a/payloads/libpayload/Makefile b/payloads/libpayload/Makefile index 959f968f83..ff6ca617b0 100644 --- a/payloads/libpayload/Makefile +++ b/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) - $(AR) rc $@ $(TARGETS-y) +lib: lib/libpayload.a lib/$(ARCHDIR-y)/head.o + +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: diff --git a/payloads/libpayload/bin/lp.functions b/payloads/libpayload/bin/lp.functions new file mode 100644 index 0000000000..21b6e918b8 --- /dev/null +++ b/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 diff --git a/payloads/libpayload/bin/lpas b/payloads/libpayload/bin/lpas new file mode 100755 index 0000000000..37125b472d --- /dev/null +++ b/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 diff --git a/payloads/libpayload/bin/lpgcc b/payloads/libpayload/bin/lpgcc new file mode 100755 index 0000000000..bfd6c1b777 --- /dev/null +++ b/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 $_LIBGCC +fi diff --git a/payloads/libpayload/libpayload.ldscript b/payloads/libpayload/lib/libpayload.ldscript similarity index 100% rename from payloads/libpayload/libpayload.ldscript rename to payloads/libpayload/lib/libpayload.ldscript diff --git a/payloads/libpayload/sample/Makefile b/payloads/libpayload/sample/Makefile index 1daea5f6ec..e01d4e85df 100644 --- a/payloads/libpayload/sample/Makefile +++ b/payloads/libpayload/sample/Makefile @@ -29,23 +29,17 @@ # Sample libpayload Makefile. -CC = gcc -CROSS_CFLAGS = -m32 +CC := ../bin/lpgcc -INCLUDES = -I../include -INCLUDES += -I$(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) +CFLAGS := -Wall -Werror -Os 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