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c43d68510e
This commit adds some more files to use zlib from TF. To use zlib, ->zalloc and ->zfree hooks are needed. The implementation depends on the system. For user-space, the libc provides malloc() and friends. Unfortunately, ARM Trusted Firmware does not provide malloc() or any concept of dynamic memory allocation. I implemented very simple calloc() and free() for this. Stupidly, zfree() never frees memory, but it works enough for this. The purpose of using zlib is to implement gunzip() - this function takes compressed data from in_buf, then dumps the decompressed data to oub_buf. The work_buf is used for memory allocation during the decompress. Upon exit, it updates in_buf and out_buf. If successful, in_buf points to the end of input data, out_buf to the end of the decompressed data. To use this feature, you need to do: - include lib/zlib/zlib.mk from your platform.mk - add $(ZLIB_SOURCES) to your BL*_SOURCES Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
25 lines
549 B
Makefile
25 lines
549 B
Makefile
#
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# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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ZLIB_PATH := lib/zlib
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# Imported from zlib 1.2.11 (do not modify them)
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ZLIB_SOURCES := $(addprefix $(ZLIB_PATH)/, \
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adler32.c \
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crc32.c \
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inffast.c \
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inflate.c \
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inftrees.c \
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zutil.c)
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# Implemented for TF
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ZLIB_SOURCES += $(addprefix $(ZLIB_PATH)/, \
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tf_gunzip.c)
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INCLUDES += -Iinclude/lib/zlib
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# REVISIT: the following flags need not be given globally
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TF_CFLAGS += -DZ_SOLO -DDEF_WBITS=31
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