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coreboot-kgpe-d16/payloads/libpayload/Makefile.inc
Julius Werner bf27391da5 libpayload: Add LZ4 decompression algorithm 
This patch adds support for the LZ4 decompression algorithm to
libpayload. It's what all the cool kids are using for decompression
these days and has many interesting advantages over LZMA (and everything
else I know of): blazing fast decompression (20(!) times faster than
LZMA, twice as fast as LZO on my Cortex-A72), no memory requirements on
decompression, and possibly in-place decompression support. It pays for
that with a lower compression ratio (about 50% larger compressed size
than LZMA, 10% larger than LZO for an ARM64 Linux kernel binary), but
the boot time math still works in its favor for our IO speeds.

This patch only adds the raw decompression functions for use by external
payloads, we can later try integrating them in CBFS. It copies the
decompression code itself unmodified from the upstream LZ4 library at
github.com/Cyan4973/lz4 which will hopefully make it easy to update. The
frame format parsing is reimplemented since the upstream version looks
unnecessarily complex and unreadable for our needs.

BRANCH=smaug
BUG=chrome-os-partner:32184
TEST=With other patches, booted ARM64 kernel that got compressed from
15M to 5.1M and decompresses in 44ms.

Change-Id: I65bdc4b2b19bd51c7b7e17a4e4b79da301a2a014
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: f8a1fc996d5b0234d07f567fa8163d0f802d5144
Original-Change-Id: I15c0620da05561ade2552b15ffdf6bb3afd7eb26
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/282743
Original-Reviewed-by: Stefan Reinauer <reinauer@google.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10845
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-09 00:10:16 +02:00

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Makefile
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##
## This file is part of the libpayload project.
##
## Copyright (C) 2008 Advanced Micro Devices, Inc.
## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
## Copyright (C) 2011 secunet Security Networks AG
##
## 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.
##
export KERNELVERSION := 0.2.0
ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm
ARCHDIR-$(CONFIG_LP_ARCH_ARM64) := arm64
ARCHDIR-$(CONFIG_LP_ARCH_MIPS) := mips
ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86
DESTDIR ?= install
real-target: lib
classes-$(CONFIG_LP_PCI) += libpci
classes-$(CONFIG_LP_LIBC) += libc
classes-$(CONFIG_LP_CURSES) += libcurses
classes-$(CONFIG_LP_PDCURSES) += libmenu libform libpanel
classes-$(CONFIG_LP_CBFS) += libcbfs
classes-$(CONFIG_LP_LZMA) += liblzma
classes-$(CONFIG_LP_LZ4) += liblz4
classes-$(CONFIG_LP_REMOTEGDB) += libgdb
libraries := $(classes-y)
classes-y += head.o
subdirs-y := arch/$(ARCHDIR-y)
subdirs-y += crypto libc drivers libpci gdb
subdirs-$(CONFIG_LP_CURSES) += curses
subdirs-$(CONFIG_LP_CBFS) += libcbfs
subdirs-$(CONFIG_LP_LZMA) += liblzma
subdirs-$(CONFIG_LP_LZ4) += liblz4
INCLUDES := -Iinclude -Iinclude/$(ARCHDIR-y) -I$(obj) -include include/kconfig.h
CFLAGS += $(EXTRA_CFLAGS) $(INCLUDES) -Os -pipe -nostdinc -ggdb3
CFLAGS += -nostdlib -fno-builtin -ffreestanding -fomit-frame-pointer
CFLAGS += -ffunction-sections -fdata-sections
CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
CFLAGS += -Wstrict-aliasing -Wshadow -Werror
$(obj)/libpayload-config.h: $(KCONFIG_AUTOHEADER)
cmp $@ $< 2>/dev/null || cp $< $@
library-targets = $(addsuffix .a,$(addprefix $(obj)/,$(libraries))) $(obj)/libpayload.a
lib: $$(library-targets) $(obj)/head.o
extract_nth=$(word $(1), $(subst |, ,$(2)))
#######################################################################
# Add handler for special include files
$(call add-special-class,includes)
includes-handler= \
$(if $(wildcard $(1)$(call extract_nth,1,$(2))), \
$(eval includes += $(1)$(2)))
$(obj)/libpayload.a: $(foreach class,$(libraries),$$($(class)-objs))
printf " AR $(subst $(shell pwd)/,,$(@))\n"
$(AR) rc $@ $^
$(obj)/%.a: $$(%-objs)
printf " AR $(subst $(shell pwd)/,,$(@))\n"
$(AR) rc $@ $^
$(obj)/head.o: $(obj)/arch/$(ARCHDIR-y)/head.head.o.o
printf " CP $(subst $(shell pwd)/,,$(@))\n"
cp $^ $@
install: real-target
printf " INSTALL $(DESTDIR)/libpayload/lib\n"
install -m 755 -d $(DESTDIR)/libpayload/lib
for lib in $(library-targets); do \
install -m 644 $$lib $(DESTDIR)/libpayload/lib/; \
done
install -m 644 arch/$(ARCHDIR-y)/libpayload.ldscript $(DESTDIR)/libpayload/lib/
install -m 755 -d $(DESTDIR)/libpayload/lib/$(ARCHDIR-y)
install -m 644 $(obj)/head.o $(DESTDIR)/libpayload/lib/$(ARCHDIR-y)
printf " INSTALL $(DESTDIR)/libpayload/include\n"
install -m 755 -d $(DESTDIR)/libpayload/include
for file in `find include -name *.h -type f`; do \
install -m 755 -d $(DESTDIR)/libpayload/`dirname $$file`; \
install -m 644 $$file $(DESTDIR)/libpayload/$$file; \
done
install -m 644 $(obj)/libpayload-config.h $(DESTDIR)/libpayload/include
$(foreach item,$(includes), \
install -m 755 -d $(DESTDIR)/libpayload/include/$(call extract_nth,2,$(item)); \
install -m 644 $(call extract_nth,1,$(item)) $(DESTDIR)/libpayload/include/$(call extract_nth,2,$(item)); )
printf " INSTALL $(DESTDIR)/libpayload/bin\n"
install -m 755 -d $(DESTDIR)/libpayload/bin
install -m 755 bin/lpgcc $(DESTDIR)/libpayload/bin
install -m 755 bin/lpas $(DESTDIR)/libpayload/bin
install -m 644 bin/lp.functions $(DESTDIR)/libpayload/bin
install -m 644 $(DOTCONFIG) $(DESTDIR)/libpayload/libpayload.config
clean-for-update-target:
rm -f $(addsuffix .a,$(addprefix $(obj)/,$(libraries))) $(obj)/libpayload.a
clean-target:
prepare:
junit.xml:
echo '<?xml version="1.0" encoding="utf-8"?><testsuite>' > $@.tmp
for i in $(filter-out %.old,$(wildcard configs/*)); do \
$(MAKE) clean; \
yes "" | $(MAKE) oldconfig DOTCONFIG=$$i V=$(V) Q=$(Q) 2>/dev/null >/dev/null; \
echo "<testcase classname='libpayload' name='$$i'>" >> $@.tmp; \
$(MAKE) V=$(V) Q=$(Q) CONFIG_CCACHE=$(CONFIG_CCACHE) DOTCONFIG=$$i >> $@.tmp.2 2>&1 && type="system-out" || type="failure"; \
if [ $$type = "failure" ]; then \
echo "<failure type='buildFailed'>" >> $@.tmp; \
else \
echo "<$$type>" >> $@.tmp; \
fi; \
echo '<![CDATA[' >> $@.tmp; \
cat $@.tmp.2 >> $@.tmp; \
echo "]]></$$type>" >>$@.tmp; \
rm -f $@.tmp.2; \
echo "</testcase>" >> $@.tmp; \
done
echo "</testsuite>" >> $@.tmp
mv $@.tmp $@
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