d998972eb5
Similarly to bpf_attr fields checks. * ptp_clock.h: New file. * Makefile.am (strace_SOURCES): Add it. (strace_SOURCES_check, BUILT_SOURCES, CLEANFILES): Add ptp_clock_check.c. (EXTRA_DIST): Add gen_ptp_clock_check.sh. (ptp_clock_check.c): New rule. * configure.ac (AC_CHECK_HEADERS([linux/ptp_clock.h])): Call st_PTP_CLOCK. * gen_ptp_clock_check.sh: New file. * m4/gen_ptp_clock_m4.awk: Likewise. * m4/gen_ptp_clock_m4.sh: Likewise.
83 lines
2.9 KiB
Bash
Executable File
83 lines
2.9 KiB
Bash
Executable File
#!/bin/sh -efu
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# Copyright (c) 2018 Dmitry V. Levin <ldv@altlinux.org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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input="$1"
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shift
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cat <<EOF
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/* Generated by $0 from $input; do not edit. */
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#include "defs.h"
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#ifdef HAVE_LINUX_PTP_CLOCK_H
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# include <linux/ptp_clock.h>
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# include "ptp_clock.h"
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# include "static_assert.h"
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# define SoM(type_, member_) (sizeof(((type_ *)0)->member_))
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EOF
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for struct in $(sed -n 's/^struct \(strace_ptp_[^[:space:]]\+\) .*/\1/p' < "$input"); do
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type_name="struct ${struct#strace_}"
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TYPE_NAME="$(printf %s "$type_name" |tr '[:lower:] ' '[:upper:]_')"
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sed -n '/^'"struct $struct"' [^{]*{$/,/^};$/p' < "$input" |
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sed -n 's/^[[:space:]]\+[^][;]*[[:space:]]\([^][[:space:];]\+\)\(\[[^;]*\]\)\?;$/\1/p' |
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while read field; do
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FIELD="$(printf %s "$field" |tr '[:lower:]' '[:upper:]')"
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if [ "rsv" = "$field" ]; then
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cat <<EOF
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# ifdef HAVE_${TYPE_NAME}_$FIELD
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static_assert(SoM(struct $struct, $field) <= SoM($type_name, $field),
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"$struct.$field is bigger than in system headers");
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# endif /* HAVE_${TYPE_NAME}_$FIELD */
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EOF
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continue;
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fi
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cat <<EOF
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# ifdef HAVE_${TYPE_NAME}_$FIELD
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static_assert(SoM(struct $struct, $field) == SoM($type_name, $field),
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"$struct.$field size mismatch");
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static_assert(offsetof(struct $struct, $field) == offsetof($type_name, $field),
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"$struct.$field offset mismatch");
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# endif /* HAVE_${TYPE_NAME}_$FIELD */
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EOF
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done
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cat <<EOF
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static_assert(${struct}_size == expected_${struct}_size,
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"${struct}_size mismatch");
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EOF
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done
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cat <<'EOF'
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#endif /* HAVE_LINUX_BPF_H */
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EOF
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