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authorBruce Griffith <Bruce.Griffith@se-eng.com>2014-07-16 11:25:21 -0600
committerBruce Griffith <Bruce.Griffith@se-eng.com>2014-08-30 00:28:06 +0200
commit3a2310e05c971e3b46e9e91886bbc467ae49cdb6 (patch)
tree26c8d9981dd2bb83f39cd2731ee8c61f9e4c80a0 /util/fletcher/Makefile
parent71c0bf6202bee2c17b3e64b377038207f6018dc6 (diff)
AMD Steppe Eagle: Add 32-bit Fletcher's Checksum computation
The AMD Platform Security Processor (PSP) requires a Fletcher's Checksum at the end of the PSP directory. This code implements a Fletcher's Checksum by reading bytes from stdin and writes the bytes back to stdout with a checksum inserted into the byte stream at the appropriate offset. This utility is used on PSP binaries during coreboot build. Include a runtime debug option such that the command: fletcher --print <file.bin >file_with_cksum.bin will print out the computed checksum value for debugging. The compile-time debug option is retained that allows -DDEBUG to be added to the compilation line. This option has the same effect as "--print". Change-Id: I506a479d8204ca4f8267d53aa152ac4b473dbc75 Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com> Reviewed-on: http://review.coreboot.org/6676 Reviewed-by: WANG Siyuan <wangsiyuanbuaa@gmail.com> Tested-by: build bot (Jenkins) Reviewed-by: Zheng Bao <zheng.bao@amd.com>
Diffstat (limited to 'util/fletcher/Makefile')
-rw-r--r--util/fletcher/Makefile37
1 files changed, 37 insertions, 0 deletions
diff --git a/util/fletcher/Makefile b/util/fletcher/Makefile
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+#*****************************************************************************
+#
+# Copyright (c) 2014, Sage Electronic Engineering, LLC
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * 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.
+# * Neither the name of Advanced Micro Devices, Inc. nor the names of
+# its contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 ADVANCED MICRO DEVICES, INC. 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.
+#
+#*****************************************************************************
+HOSTCC ?= gcc
+
+fletcher_exe : fletcher.c
+ $(HOSTCC) fletcher.c -o fletcher
+
+fletcher : fletcher_exe
+
+clean:
+ @rm -f fletcher.o fletcher fletcher.exe