# SPDX-License-Identifier: GPL-2.0 all: include ../lib.mk .PHONY: all all_32 all_64 warn_32bit_failure clean UNAME_M := $(shell uname -m) CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32) CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c) CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh $(CC) trivial_program.c -no-pie) TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \ check_initial_reg_state sigreturn iopl mpx-mini-test ioperm \ protection_keys test_vdso test_vsyscall mov_ss_trap \ syscall_arg_fault TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering # Some selftests require 32bit support enabled also on 64bit systems TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED) TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY) ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11) TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED) endif BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32) BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64) BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) CFLAGS := -O2 -g -std=gnu99 -pthread -Wall # call32_from_64 in thunks.S uses absolute addresses. ifeq ($(CAN_BUILD_WITH_NOPIE),1) CFLAGS += -no-pie endif define gen-target-rule-32 $(1) $(1)_32: $(OUTPUT)/$(1)_32 .PHONY: $(1) $(1)_32 endef define gen-target-rule-64 $(1) $(1)_64: $(OUTPUT)/$(1)_64 .PHONY: $(1) $(1)_64 endef ifeq ($(CAN_BUILD_I386),1) all: all_32 TEST_PROGS += $(BINARIES_32) EXTRA_CFLAGS += -DCAN_BUILD_32 $(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t)))) endif ifeq ($(CAN_BUILD_X86_64),1) all: all_64 TEST_PROGS += $(BINARIES_64) EXTRA_CFLAGS += -DCAN_BUILD_64 $(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t)))) endif all_32: $(BINARIES_32) all_64: $(BINARIES_64) EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64) $(BINARIES_32): $(OUTPUT)/%_32: %.c $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm $(BINARIES_64): $(OUTPUT)/%_64: %.c $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl # x86_64 users should be encouraged to install 32-bit libraries ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) all: warn_32bit_failure warn_32bit_failure: @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ echo "kernels. If you are using a Debian-like distribution," 2>&1; \ echo "try:"; 2>&1; \ echo ""; \ echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ echo ""; \ echo "If you are using a Fedora-like distribution, try:"; \ echo ""; \ echo " yum install glibc-devel.*i686"; \ exit 0; endif # Some tests have additional dependencies. $(OUTPUT)/sysret_ss_attrs_64: thunks.S $(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S $(OUTPUT)/test_syscall_vdso_32: thunks_32.S # check_initial_reg_state is special: it needs a custom entry, and it # needs to be static so that its interpreter doesn't destroy its initial # state. $(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static $(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static