1# SPDX-License-Identifier: GPL-2.0 2all: 3 4include ../lib.mk 5 6.PHONY: all all_32 all_64 warn_32bit_failure clean 7 8UNAME_M := $(shell uname -m) 9CAN_BUILD_I386 := $(shell ./check_cc.sh "$(CC)" trivial_32bit_program.c -m32) 10CAN_BUILD_X86_64 := $(shell ./check_cc.sh "$(CC)" trivial_64bit_program.c) 11CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh "$(CC)" trivial_program.c -no-pie) 12 13TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \ 14 check_initial_reg_state sigreturn iopl ioperm \ 15 test_vsyscall mov_ss_trap \ 16 syscall_arg_fault fsgsbase_restore sigaltstack 17TARGETS_C_BOTHBITS += nx_stack 18TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ 19 test_FCMOV test_FCOMI test_FISTTP \ 20 vdso_restorer 21TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ 22 corrupt_xstate_header amx lam test_shadow_stack 23# Some selftests require 32bit support enabled also on 64bit systems 24TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall 25 26TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED) 27TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY) 28ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11) 29TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED) 30endif 31 32BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32) 33BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64) 34 35BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 36BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 37 38CFLAGS := -O2 -g -std=gnu99 -pthread -Wall $(KHDR_INCLUDES) 39 40# call32_from_64 in thunks.S uses absolute addresses. 41ifeq ($(CAN_BUILD_WITH_NOPIE),1) 42CFLAGS += -no-pie 43endif 44 45define gen-target-rule-32 46$(1) $(1)_32: $(OUTPUT)/$(1)_32 47.PHONY: $(1) $(1)_32 48endef 49 50define gen-target-rule-64 51$(1) $(1)_64: $(OUTPUT)/$(1)_64 52.PHONY: $(1) $(1)_64 53endef 54 55ifeq ($(CAN_BUILD_I386),1) 56all: all_32 57TEST_PROGS += $(BINARIES_32) 58EXTRA_CFLAGS += -DCAN_BUILD_32 59$(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t)))) 60endif 61 62ifeq ($(CAN_BUILD_X86_64),1) 63all: all_64 64TEST_PROGS += $(BINARIES_64) 65EXTRA_CFLAGS += -DCAN_BUILD_64 66$(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t)))) 67endif 68 69all_32: $(BINARIES_32) 70 71all_64: $(BINARIES_64) 72 73EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64) 74 75$(BINARIES_32): $(OUTPUT)/%_32: %.c helpers.h 76 $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm 77 78$(BINARIES_64): $(OUTPUT)/%_64: %.c helpers.h 79 $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl 80 81# x86_64 users should be encouraged to install 32-bit libraries 82ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 83all: warn_32bit_failure 84 85warn_32bit_failure: 86 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 87 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 88 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 89 echo "try:"; 2>&1; \ 90 echo ""; \ 91 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 92 echo ""; \ 93 echo "If you are using a Fedora-like distribution, try:"; \ 94 echo ""; \ 95 echo " yum install glibc-devel.*i686"; \ 96 echo ""; \ 97 echo "If you are using a SUSE-like distribution, try:"; \ 98 echo ""; \ 99 echo " zypper install gcc-32bit glibc-devel-static-32bit"; \ 100 exit 0; 101endif 102 103# Some tests have additional dependencies. 104$(OUTPUT)/sysret_ss_attrs_64: thunks.S 105$(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S 106$(OUTPUT)/test_syscall_vdso_32: thunks_32.S 107 108# check_initial_reg_state is special: it needs a custom entry, and it 109# needs to be static so that its interpreter doesn't destroy its initial 110# state. 111$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static 112$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static 113 114$(OUTPUT)/nx_stack_32: CFLAGS += -Wl,-z,noexecstack 115$(OUTPUT)/nx_stack_64: CFLAGS += -Wl,-z,noexecstack 116