79 lines
2.7 KiB
Makefile
79 lines
2.7 KiB
Makefile
#
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# Copyright (c) Red Hat Inc., 2008
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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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
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# the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Author: Masatake YAMATO <yamato@redhat.com>
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# Technique used here is suggested by Ngie Cooper <yaneurabeya@gmail.com>
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# Usage:
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#
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# This makefile snippet is for writing test cases
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# for foo16 system calls. Here I assume you already have
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# test cases for foo like foo01, foo02.. fooN and I also
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# assume the source file name for fooN is fooN.c.
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# On the above assumption, this file does:
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#
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# * adding fooN_16 as MAKE_TARGETS,
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# * making *.c depend on compat_16.h if the header file exists,
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# * adding rules to build fooN_16 from fooN.c (and compat_16.h), and
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# * passing a cpp symbol TST_USE_COMPAT16_SYSCALL to
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# CC when building fooN_16.
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#
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#
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# You can use this file in following procedures:
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#
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# 1. write fooN.c.
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# 2. add the code for 16 bit syscall and wrap
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# it #ifdef TST_USE_COMPAT16_SYSCALL/endif.
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# 3. introduce your own compat_16.h if the ifdef
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# block is too large.
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# 4. don't forget putting compat_16.h in all fooN.c
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# if you introduced compat_16.h.
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# 5. include this file compat_16.mk in your Makefile.
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# 6. use `+=' instead of `=' as assignment operator for MAKE_TARGETS.
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# 7. Added extra definitions to CFLAGS in %_16 target if needed.
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#
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# See Makefile of setuid test case.
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#
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CPPFLAGS += -I$(abs_srcdir) -I$(abs_srcdir)/../utils
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SRCS ?= $(sort $(wildcard $(abs_srcdir)/*.c))
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MAKE_TARGETS := $(notdir $(patsubst %.c,%,$(SRCS)))
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MAKE_TARGETS_OBJS_WO_COMPAT_16 := $(addsuffix .o,$(MAKE_TARGETS))
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MAKE_TARGETS += $(addsuffix _16,$(MAKE_TARGETS))
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# XXX (garrcoop): This code should be put in question as it cannot be applied
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# (no .h file, no TST_USE_NEWER64_SYSCALL def).
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DEF_16 := TST_USE_COMPAT16_SYSCALL
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ifneq ($(COMPAT_TST_16_H),1)
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COMPAT_16_H := $(abs_srcdir)/../utils/compat_16.h
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else
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COMPAT_16_H := $(abs_srcdir)/../utils/compat_tst_16.h
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endif
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ifneq ($(wildcard $(COMPAT_16_H)),)
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$(MAKE_TARGETS_OBJS_WO_COMPAT_16): $(COMPAT_16_H)
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.INTERMEDIATE: $(MAKE_TARGETS_OBJS_WO_COMPAT_16)
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endif
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%_16: CPPFLAGS += -D$(DEF_16)=1
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# XXX (garrcoop): End section of code in question..
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%_16.o: %.c $(COMPAT_16_H)
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$(COMPILE.c) $(OUTPUT_OPTION) $<
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