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