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
8TARGETS_C_32BIT_ONLY := entry_from_vm86
9
10TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
11BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
12BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)
13
14CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
15
16UNAME_M := $(shell uname -m)
17CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
18CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
19
20ifeq ($(CAN_BUILD_I386),1)
21all: all_32
22TEST_PROGS += $(BINARIES_32)
23endif
24
25ifeq ($(CAN_BUILD_X86_64),1)
26all: all_64
27TEST_PROGS += $(BINARIES_64)
28endif
29
30all_32: $(BINARIES_32)
31
32all_64: $(BINARIES_64)
33
34clean:
35	$(RM) $(BINARIES_32) $(BINARIES_64)
36
37$(TARGETS_C_32BIT_ALL:%=%_32): %_32: %.c
38	$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
39
40$(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c
41	$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
42
43# x86_64 users should be encouraged to install 32-bit libraries
44ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
45all: warn_32bit_failure
46
47warn_32bit_failure:
48	@echo "Warning: you seem to have a broken 32-bit build" 2>&1; 	\
49	echo "environment.  This will reduce test coverage of 64-bit" 2>&1; \
50	echo "kernels.  If you are using a Debian-like distribution," 2>&1; \
51	echo "try:"; 2>&1; \
52	echo "";							\
53	echo "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
54	echo "";							\
55	echo "If you are using a Fedora-like distribution, try:";	\
56	echo "";							\
57	echo "  yum install glibc-devel.*i686";				\
58	exit 0;
59endif
60