1all:
2
3include ../lib.mk
4
5.PHONY: all all_32 all_64 warn_32bit_failure clean
6
7TARGETS_C_BOTHBITS := sigreturn single_step_syscall
8
9BINARIES_32 := $(TARGETS_C_BOTHBITS:%=%_32)
10BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)
11
12CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
13
14UNAME_M := $(shell uname -m)
15CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
16CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
17
18ifeq ($(CAN_BUILD_I386),1)
19all: all_32
20TEST_PROGS += $(BINARIES_32)
21endif
22
23ifeq ($(CAN_BUILD_X86_64),1)
24all: all_64
25TEST_PROGS += $(BINARIES_64)
26endif
27
28all_32: $(BINARIES_32)
29
30all_64: $(BINARIES_64)
31
32clean:
33	$(RM) $(BINARIES_32) $(BINARIES_64)
34
35$(TARGETS_C_BOTHBITS:%=%_32): %_32: %.c
36	$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
37
38$(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c
39	$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
40
41# x86_64 users should be encouraged to install 32-bit libraries
42ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
43all: warn_32bit_failure
44
45warn_32bit_failure:
46	@echo "Warning: you seem to have a broken 32-bit build" 2>&1; 	\
47	echo "environment.  This will reduce test coverage of 64-bit" 2>&1; \
48	echo "kernels.  If you are using a Debian-like distribution," 2>&1; \
49	echo "try:"; 2>&1; \
50	echo "";							\
51	echo "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
52	echo "";							\
53	echo "If you are using a Fedora-like distribution, try:";	\
54	echo "";							\
55	echo "  yum install glibc-devel.*i686";				\
56	exit 0;
57endif
58