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https://github.com/SCST-project/scst.git
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22a46ff163
The patch below implements the following changes: - Make sure the output of the make command does not appear in the generated kernel patch. - Changed interpreter of scripts/specialize-patch from /usr/bin/gawk to /usr/bin/awk in order to make sure this awk script also runs on systems where awk is installed but not gawk. - Added an extra evaluation rule such that expressions like (0) are rewritten as 0. - Fixed a spelling error. - Expressions that can only be partially evaluated are now partially evaluated. E.g. #if defined(EXTRACHECKS) && (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) becomes #if defined(EXTRACHECKS) && 0 in the output. - Code between #if 0 / #endif or #if 1 / #endif is included in the generated kernel patch, including the surrounding preprocessor directives. - Preprocessor statements with spaces behind # are now recognized (e.g. "# if"). - Expression evaluator now supports ! (logical not) and () (braces). - #elif is now evaluated correctly. - Nested #if / #elif / #else / #endif are now interpreted correctly. Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@385 d57e44dd-8a1f-0410-8b47-8ef2f437770f
228 lines
5.8 KiB
Bash
Executable File
228 lines
5.8 KiB
Bash
Executable File
#!/bin/bash
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############################################################################
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#
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# Script for converting the SCST source tree as it exists in the Subversion
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# repository to a Linux kernel patch.
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#
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# Copyright (C) 2008 Bart Van Assche <bart.vanassche@gmail.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation, version 2
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# of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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############################################################################
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########################
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# Function definitions #
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########################
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# Convert an existing patch.
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# $1: path of patch to be added.
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# $2: path in kernel tree of file to be patched.
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function add_patch {
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if [ ! -e "$1" ]; then
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echo "Error: could not find $1." >&2
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exit 1
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fi
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sed -e "s:^--- [^ ]*:--- orig/linux-${kernel_version}/$2:" \
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-e "s:^+++ [^ ]*:+++ linux-${kernel_version}/$2:" \
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< "$1"
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}
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# Generate a patch for a file to be added to the kernel source tree, and strip
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# trailing whitespace from C source files while converting the file to patch
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# format.
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# $1: path of file to be added.
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# $2: path in kernel tree where file should be added.
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function add_file {
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local a b
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if [ ! -e "$1" ]; then
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echo "Error: could not find $1." >&2
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exit 1
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fi
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# Only include files that were not generated by the build process
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# -- skip *.mod.c.
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if [ "$1" = "${1%.mod.c}" -a "$1" ]; then
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cat <<EOF
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diff -uprN orig/linux-${kernel_version}/$2 linux-${kernel_version}/$2
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--- orig/linux-${kernel_version}/$2
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+++ linux-${kernel_version}/$2
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@@ -0,0 +1,$(wc -l "$1" | { read a b; echo $a; }) @@
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EOF
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if [ "${2%.[ch]}" != "$2" ]; then
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sed -e 's/^ \([^ ]*:\)$/\1/' -e 's/^/+/' < "$1"
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else
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sed -e 's/^/+/' < "$1"
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fi
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fi
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}
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#########################
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# Argument verification #
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#########################
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if [ ! -e scst -o ! -e iscsi-scst -o ! -e srpt ]; then
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echo "Please run this script from inside the SCST subversion source tree."
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exit 1
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fi
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if [ $# != 1 ]; then
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echo "Usage: $0 <kernel version>."
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exit 1
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fi
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####################
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# Patch Generation #
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####################
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kernel_version="$1"
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kpatch=( \
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"scst/kernel/scst_exec_req_fifo-${kernel_version}.patch" \
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"iscsi-scst/kernel/patches/put_page_callback-${kernel_version}.patch" \
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)
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for p in "${kpatch[@]}"
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do
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if [ ! -e "$p" ]; then
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echo "Error: kernel version ${kernel_version} is not supported by SCST."
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echo "(could not find file $p)."
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exit 1
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fi >&2
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done
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# Redirect the output of all subsequent commands to the specialize-patch script
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trap "rm -f ${fifo}" EXIT
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fifo=/tmp/generate-kernel-patch-fifo.$$
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rm -f "${fifo}"
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mkfifo "${fifo}"
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"$(dirname $0)/specialize-patch" -v kernel_version="${kernel_version}" \
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< "${fifo}" &
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exec >"${fifo}"
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# General kernel patches.
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cat "${kpatch[@]}"
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# Directory include/scst/
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# Make sure the file iscsi-scst/iscsi_scst_itf_ver.h is up to date.
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make -s -C iscsi-scst include/iscsi_scst_itf_ver.h
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for f in scst/include/*h
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do
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add_file "${f}" "include/scst/${f#scst/include/}"
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done
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for f in iscsi-scst/include/*h
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do
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add_file "${f}" "include/scst/${f#iscsi-scst/include/}"
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done
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# Directory drivers/
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add_patch "scst/kernel/in-tree/Kconfig.drivers.Linux-${kernel_version}.patch" \
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"drivers/Kconfig"
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add_patch "scst/kernel/in-tree/Makefile.drivers.Linux-${kernel_version}.patch"\
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"drivers/Makefile"
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# Directory drivers/scst/
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add_file "scst/kernel/in-tree/Kconfig.scst" "drivers/scst/Kconfig"
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add_file "scst/kernel/in-tree/Makefile.scst" "drivers/scst/Makefile"
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add_file "scst/README" "Documentation/scst/README.scst"
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for f in scst/src/*.[ch]
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do
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add_file "${f}" "drivers/scst/${f#scst/src/}"
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done
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# Directory drivers/scst/dev_handlers/
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add_file "scst/kernel/in-tree/Makefile.dev_handlers" \
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"drivers/scst/dev_handlers/Makefile"
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for f in scst/src/dev_handlers/*.[ch]
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do
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add_file "${f}" "drivers/scst/dev_handlers/${f#scst/src/dev_handlers/}"
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done
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# Directory drivers/scst/iscsi-scst/
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add_file "iscsi-scst/kernel/Makefile.in-kernel" \
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"drivers/scst/iscsi-scst/Makefile"
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add_file "iscsi-scst/kernel/Kconfig" "drivers/scst/iscsi-scst/Kconfig"
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add_file "iscsi-scst/README" "Documentation/scst/README.iscsi"
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for f in iscsi-scst/kernel/*.[ch]
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do
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add_file "${f}" "drivers/scst/iscsi-scst/${f#iscsi-scst/kernel/}"
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done
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# Directory drivers/scst/qla2x00-target/
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if false; then
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add_file "qla2x00t/qla2x00-target/Makefile.in-kernel" \
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"drivers/scst/qla2x00-target/Makefile"
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add_file "qla2x00t/qla2x00-target/Kconfig" \
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"drivers/scst/qla2x00-target/Kconfig"
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add_file "qla2x00t/qla2x_tgt_def.h" \
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"drivers/scst/qla2x00-target/qla2x_tgt_def.h"
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add_file "qla2x00t/qla2x00-target/README" \
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"Documentation/scst/README.qla2x00t"
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for f in qla2x00t/qla2x00-target/*.[ch]
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do
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add_file "${f}" "drivers/scst/qla2x00-target/${f#qla2x00t/qla2x00-target/}"
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done
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fi
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# Directory drivers/infiniband/ulp/srpt/
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add_patch "srpt/src/Kconfig.infiniband.Linux-${kernel_version}.patch" \
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"drivers/infiniband/Kconfig"
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add_patch "srpt/src/Makefile.infiniband.Linux-${kernel_version}.patch" \
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"drivers/infiniband/Makefile"
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add_file "srpt/src/Kconfig" "drivers/infiniband/ulp/srpt/Kconfig"
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add_file "srpt/src/Makefile.in_kernel" "drivers/infiniband/ulp/srpt/Makefile"
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add_file "srpt/README" "Documentation/scst/README.srpt"
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for f in srpt/src/*.[ch]
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do
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add_file "${f}" "drivers/infiniband/ulp/srpt/${f#srpt/src/}"
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done
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