1 # 2 # Copyright (c) Red Hat Inc., 2008 3 # 4 # This program is free software; you can redistribute it and/or modify 5 # it under the terms of the GNU General Public License as published by 6 # the Free Software Foundation; either version 2 of the License, or 7 # (at your option) any later version. 8 # 9 # This program is distributed in the hope that it will be useful, 10 # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 12 # the GNU General Public License for more details. 13 # 14 # You should have received a copy of the GNU General Public License 15 # along with this program. If not, see <http://www.gnu.org/licenses/>. 16 17 # Author: Masatake YAMATO <yamato (at] redhat.com> 18 # Technique used here is suggested by Ngie Cooper <yaneurabeya (at] gmail.com> 19 20 # Usage: 21 # 22 # This makefile snippet is for writing test cases 23 # for foo16 system calls. Here I assume you already have 24 # test cases for foo like foo01, foo02.. fooN and I also 25 # assume the source file name for fooN is fooN.c. 26 # On the above assumption, this file does: 27 # 28 # * adding fooN_16 as MAKE_TARGETS, 29 # * making *.c depend on compat_16.h if the header file exists, 30 # * adding rules to build fooN_16 from fooN.c (and compat_16.h), and 31 # * passing a cpp symbol TST_USE_COMPAT16_SYSCALL to 32 # CC when building fooN_16. 33 # 34 # 35 # You can use this file in following procedures: 36 # 37 # 1. write fooN.c. 38 # 2. add the code for 16 bit syscall and wrap 39 # it #ifdef TST_USE_COMPAT16_SYSCALL/endif. 40 # 3. introduce your own compat_16.h if the ifdef 41 # block is too large. 42 # 4. don't forget putting compat_16.h in all fooN.c 43 # if you introduced compat_16.h. 44 # 5. include this file compat_16.mk in your Makefile. 45 # 6. use `+=' instead of `=' as assignment operator for MAKE_TARGETS. 46 # 7. Added extra definitions to CFLAGS in %_16 target if needed. 47 # 48 # See Makefile of setuid test case. 49 # 50 51 CPPFLAGS += -I$(abs_srcdir) -I$(abs_srcdir)/../utils 52 53 SRCS ?= $(wildcard $(abs_srcdir)/*.c) 54 55 MAKE_TARGETS := $(notdir $(patsubst %.c,%,$(SRCS))) 56 MAKE_TARGETS_OBJS_WO_COMPAT_16 := $(addsuffix .o,$(MAKE_TARGETS)) 57 MAKE_TARGETS += $(addsuffix _16,$(MAKE_TARGETS)) 58 59 # XXX (garrcoop): This code should be put in question as it cannot be applied 60 # (no .h file, no TST_USE_NEWER64_SYSCALL def). 61 DEF_16 := TST_USE_COMPAT16_SYSCALL 62 63 ifneq ($(COMPAT_TST_16_H),1) 64 COMPAT_16_H := $(abs_srcdir)/../utils/compat_16.h 65 else 66 COMPAT_16_H := $(abs_srcdir)/../utils/compat_tst_16.h 67 endif 68 69 ifneq ($(wildcard $(COMPAT_16_H)),) 70 $(MAKE_TARGETS_OBJS_WO_COMPAT_16): $(COMPAT_16_H) 71 .INTERMEDIATE: $(MAKE_TARGETS_OBJS_WO_COMPAT_16) 72 endif 73 74 %_16: CPPFLAGS += -D$(DEF_16)=1 75 # XXX (garrcoop): End section of code in question.. 76 77 %_16.o: %.c $(COMPAT_16_H) 78 $(COMPILE.c) $(OUTPUT_OPTION) $< 79
