tools/testing/selftests/x86/Makefile

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