5 .PHONY: all all_32 all_64 warn_32bit_failure clean
7 TARGETS_C_BOTHBITS := sigreturn single_step_syscall
8 TARGETS_C_32BIT_ONLY := entry_from_vm86
10 TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
11 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
12 BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)
14 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
16 UNAME_M := $(shell uname -m)
17 CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
18 CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
20 ifeq ($(CAN_BUILD_I386),1)
22 TEST_PROGS += $(BINARIES_32)
25 ifeq ($(CAN_BUILD_X86_64),1)
27 TEST_PROGS += $(BINARIES_64)
30 all_32: $(BINARIES_32)
32 all_64: $(BINARIES_64)
35 $(RM) $(BINARIES_32) $(BINARIES_64)
37 $(TARGETS_C_32BIT_ALL:%=%_32): %_32: %.c
38 $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
40 $(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c
41 $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
43 # x86_64 users should be encouraged to install 32-bit libraries
44 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
45 all: warn_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; \
53 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
55 echo "If you are using a Fedora-like distribution, try:"; \
57 echo " yum install glibc-devel.*i686"; \