1 # SPDX-License-Identifier: GPL-2.0
6 .PHONY: all all_32 all_64 warn_32bit_failure clean
8 UNAME_M := $(shell uname -m)
9 CAN_BUILD_I386 := $(shell ./check_cc.sh "$(CC)" trivial_32bit_program.c -m32)
10 CAN_BUILD_X86_64 := $(shell ./check_cc.sh "$(CC)" trivial_64bit_program.c)
11 CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh "$(CC)" trivial_program.c -no-pie)
13 TARGETS_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
17 TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \
18 test_FCMOV test_FCOMI test_FISTTP \
20 TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \
21 corrupt_xstate_header amx
22 # Some selftests require 32bit support enabled also on 64bit systems
23 TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall
25 TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED)
26 TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
27 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11)
28 TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED)
31 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
32 BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
34 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
35 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
37 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
39 # call32_from_64 in thunks.S uses absolute addresses.
40 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
44 define gen-target-rule-32
45 $(1) $(1)_32: $(OUTPUT)/$(1)_32
49 define gen-target-rule-64
50 $(1) $(1)_64: $(OUTPUT)/$(1)_64
54 ifeq ($(CAN_BUILD_I386),1)
56 TEST_PROGS += $(BINARIES_32)
57 EXTRA_CFLAGS += -DCAN_BUILD_32
58 $(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t))))
61 ifeq ($(CAN_BUILD_X86_64),1)
63 TEST_PROGS += $(BINARIES_64)
64 EXTRA_CFLAGS += -DCAN_BUILD_64
65 $(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t))))
68 all_32: $(BINARIES_32)
70 all_64: $(BINARIES_64)
72 EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64)
74 $(BINARIES_32): $(OUTPUT)/%_32: %.c helpers.h
75 $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm
77 $(BINARIES_64): $(OUTPUT)/%_64: %.c helpers.h
78 $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
80 # x86_64 users should be encouraged to install 32-bit libraries
81 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
82 all: warn_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; \
90 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
92 echo "If you are using a Fedora-like distribution, try:"; \
94 echo " yum install glibc-devel.*i686"; \
98 # Some tests have additional dependencies.
99 $(OUTPUT)/sysret_ss_attrs_64: thunks.S
100 $(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S
101 $(OUTPUT)/test_syscall_vdso_32: thunks_32.S
103 # check_initial_reg_state is special: it needs a custom entry, and it
104 # needs to be static so that its interpreter doesn't destroy its initial
106 $(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
107 $(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static