strace/scno.am

# scno.h make rules for strace.
#
# Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. 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.
# 3. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

SCNO_CPPFLAGS = $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
		$(ARCH_MFLAGS) $(AM_CPPFLAGS) $(CPPFLAGS)

syscallent.i: $(top_builddir)/config.h $(top_srcdir)/$(OS)/$(ARCH)/syscallent.h
	$(CPP) -P $(SCNO_CPPFLAGS) -include $^ -o $@

digits = [[:digit:]][[:digit:]]*
al_nums = [[:alnum:]_][[:alnum:]_]*
SCNO_SED = /TRACE_INDIRECT_SUBCALL/d; s/^\[[[:space:]]*\($(digits)\)\][[:space:]]*=[[:space:]]*{[^,]*,[^,]*,[^,]*,[[:space:]]*"\($(al_nums)\)"[[:space:]]*},.*/\#ifndef __NR_\2\n\# define __NR_\2 (SYSCALL_BIT | \1)\n\#endif/p

scno.h: $(top_srcdir)/scno.head syscallent.i
	echo '/* Generated by Makefile from $^; do not edit. */' > $@-t
	cat $< >> $@-t
	LC_ALL=C sed -n '$(SCNO_SED)' $(filter-out $<,$^) >> $@-t
	mv $@-t $@

BUILT_SOURCES += scno.h
CLEANFILES += syscallent.i scno.h