Alex Xu (Hello71)andNick Terrell
a78c91ae59
Instead of using packed attribute hack, just use aligned attribute. It improves code generation on armv6 and armv7, and slightly improves code generation on aarch64. GCC generates identical code to regular aligned access on ARMv6 for all versions between 4.5 and trunk, except GCC 5 which is buggy and generates the same (bad) code as packed access: https://gcc.godbolt.org/z/hq37rz7sb
110 lines
3.5 KiB
Makefile
110 lines
3.5 KiB
Makefile
# ################################################################
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# Copyright (c) Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under both the BSD-style license (found in the
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# LICENSE file in the root directory of this source tree) and the GPLv2 (found
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# in the COPYING file in the root directory of this source tree).
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# You may select, at your option, one of the above-listed licenses.
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# ################################################################
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.PHONY: libzstd
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libzstd:
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rm -rf linux
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mkdir -p linux
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mkdir -p linux/include/linux
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mkdir -p linux/lib/zstd
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../freestanding_lib/freestanding.py \
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--source-lib ../../lib \
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--output-lib linux/lib/zstd \
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--xxhash '<linux/xxhash.h>' \
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--xxh64-state 'struct xxh64_state' \
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--xxh64-prefix 'xxh64' \
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--rewrite-include '<limits\.h>=<linux/limits.h>' \
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--rewrite-include '<stddef\.h>=<linux/types.h>' \
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--rewrite-include '"\.\./zstd.h"=<linux/zstd.h>' \
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--rewrite-include '"(\.\./)?zstd_errors.h"=<linux/zstd_errors.h>' \
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--sed 's,/\*\*\*,/* *,g' \
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--sed 's,/\*\*,/*,g' \
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--spdx \
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-DZSTD_NO_INTRINSICS \
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-DZSTD_NO_UNUSED_FUNCTIONS \
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-DZSTD_LEGACY_SUPPORT=0 \
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-DZSTD_STATIC_LINKING_ONLY \
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-DFSE_STATIC_LINKING_ONLY \
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-DHUF_STATIC_LINKING_ONLY \
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-DXXH_STATIC_LINKING_ONLY \
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-D__GNUC__ \
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-D__linux__=1 \
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-DSTATIC_BMI2=0 \
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-DZSTD_ADDRESS_SANITIZER=0 \
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-DZSTD_MEMORY_SANITIZER=0 \
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-DZSTD_DATAFLOW_SANITIZER=0 \
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-DZSTD_COMPRESS_HEAPMODE=1 \
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-UNO_PREFETCH \
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-U__cplusplus \
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-UZSTD_DLL_EXPORT \
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-UZSTD_DLL_IMPORT \
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-U__ICCARM__ \
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-UZSTD_MULTITHREAD \
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-U_MSC_VER \
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-U_WIN32 \
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-RZSTDLIB_VISIBILITY= \
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-RZSTDERRORLIB_VISIBILITY= \
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-RZSTD_FALLTHROUGH=fallthrough \
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-DZSTD_HAVE_WEAK_SYMBOLS=0 \
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-DZSTD_TRACE=0 \
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-DZSTD_NO_TRACE \
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-DZSTD_DISABLE_ASM \
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-DZSTD_LINUX_KERNEL
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rm linux/lib/zstd/decompress/huf_decompress_amd64.S
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mv linux/lib/zstd/zstd.h linux/include/linux/zstd_lib.h
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mv linux/lib/zstd/zstd_errors.h linux/include/linux/
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cp linux_zstd.h linux/include/linux/zstd.h
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cp zstd_common_module.c linux/lib/zstd
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cp zstd_compress_module.c linux/lib/zstd
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cp zstd_decompress_module.c linux/lib/zstd
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cp decompress_sources.h linux/lib/zstd
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cp linux.mk linux/lib/zstd/Makefile
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LINUX ?= $(HOME)/repos/linux
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.PHONY: import
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import: libzstd
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rm -f $(LINUX)/include/linux/zstd.h
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rm -f $(LINUX)/include/linux/zstd_errors.h
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rm -rf $(LINUX)/lib/zstd
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cp linux/include/linux/zstd.h $(LINUX)/include/linux
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cp linux/include/linux/zstd_lib.h $(LINUX)/include/linux
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cp linux/include/linux/zstd_errors.h $(LINUX)/include/linux
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cp -r linux/lib/zstd $(LINUX)/lib
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import-upstream:
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rm -rf $(LINUX)/lib/zstd
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mkdir $(LINUX)/lib/zstd
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cp ../../lib/zstd.h $(LINUX)/include/linux/zstd_lib.h
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cp -r ../../lib/common $(LINUX)/lib/zstd
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cp -r ../../lib/compress $(LINUX)/lib/zstd
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cp -r ../../lib/decompress $(LINUX)/lib/zstd
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mv $(LINUX)/lib/zstd/zstd_errors.h $(LINUX)/include/linux
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rm $(LINUX)/lib/zstd/common/threading.*
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rm $(LINUX)/lib/zstd/common/pool.*
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rm $(LINUX)/lib/zstd/common/xxhash.*
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rm $(LINUX)/lib/zstd/compress/zstdmt_*
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DEBUGFLAGS= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
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-Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
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-Wstrict-prototypes -Wundef -Wpointer-arith \
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-Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
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-Wredundant-decls -Wmissing-prototypes -Wc++-compat \
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-Wimplicit-fallthrough
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.PHONY: test
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test: libzstd
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$(MAKE) -C test run-test CFLAGS="-O3 $(CFLAGS) $(DEBUGFLAGS) -Werror" -j
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.PHONY: clean
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clean:
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$(RM) -rf linux
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$(MAKE) -C test clean
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