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_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ 18 test_FCMOV test_FCOMI test_FISTTP \ 19 vdso_restorer 20TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ 21 corrupt_xstate_header amx lam 22# Some selftests require 32bit support enabled also on 64bit systems 23TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall 24 25TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED) 26TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY) 27ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11) 28TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED) 29endif 30 31BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32) 32BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64) 33 34BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 35BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 36 37CFLAGS := -O2 -g -std=gnu99 -pthread -Wall $(KHDR_INCLUDES) 38 39# call32_from_64 in thunks.S uses absolute addresses. 40ifeq ($(CAN_BUILD_WITH_NOPIE),1) 41CFLAGS += -no-pie 42endif 43 44define gen-target-rule-32 45$(1) $(1)_32: $(OUTPUT)/$(1)_32 46.PHONY: $(1) $(1)_32 47endef 48 49define gen-target-rule-64 50$(1) $(1)_64: $(OUTPUT)/$(1)_64 51.PHONY: $(1) $(1)_64 52endef 53 54ifeq ($(CAN_BUILD_I386),1) 55all: all_32 56TEST_PROGS += $(BINARIES_32) 57EXTRA_CFLAGS += -DCAN_BUILD_32 58$(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t)))) 59endif 60 61ifeq ($(CAN_BUILD_X86_64),1) 62all: all_64 63TEST_PROGS += $(BINARIES_64) 64EXTRA_CFLAGS += -DCAN_BUILD_64 65$(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t)))) 66endif 67 68all_32: $(BINARIES_32) 69 70all_64: $(BINARIES_64) 71 72EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64) 73 74$(BINARIES_32): $(OUTPUT)/%_32: %.c helpers.h 75 $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm 76 77$(BINARIES_64): $(OUTPUT)/%_64: %.c helpers.h 78 $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl 79 80# x86_64 users should be encouraged to install 32-bit libraries 81ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 82all: warn_32bit_failure 83 84warn_32bit_failure: 85 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 86 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 87 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 88 echo "try:"; 2>&1; \ 89 echo ""; \ 90 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 91 echo ""; \ 92 echo "If you are using a Fedora-like distribution, try:"; \ 93 echo ""; \ 94 echo " yum install glibc-devel.*i686"; \ 95 echo ""; \ 96 echo "If you are using a SUSE-like distribution, try:"; \ 97 echo ""; \ 98 echo " zypper install gcc-32bit glibc-devel-static-32bit"; \ 99 exit 0; 100endif 101 102# Some tests have additional dependencies. 103$(OUTPUT)/sysret_ss_attrs_64: thunks.S 104$(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S 105$(OUTPUT)/test_syscall_vdso_32: thunks_32.S 106 107# check_initial_reg_state is special: it needs a custom entry, and it 108# needs to be static so that its interpreter doesn't destroy its initial 109# state. 110$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static 111$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static 112