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 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 \
  19                         vdso_restorer
  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
  24
  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)
  29 endif
  30
  31 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
  32 BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
  33
  34 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
  35 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
  36
  37 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
  38
  39 # call32_from_64 in thunks.S uses absolute addresses.
  40 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
  41 CFLAGS += -no-pie
  42 endif
  43
  44 define gen-target-rule-32
  45 $(1) $(1)_32: $(OUTPUT)/$(1)_32
  46 .PHONY: $(1) $(1)_32
  47 endef
  48
  49 define gen-target-rule-64
  50 $(1) $(1)_64: $(OUTPUT)/$(1)_64
  51 .PHONY: $(1) $(1)_64
  52 endef
  53
  54 ifeq ($(CAN_BUILD_I386),1)
  55 all: all_32
  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))))
  59 endif
  60
  61 ifeq ($(CAN_BUILD_X86_64),1)
  62 all: all_64
  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))))
  66 endif
  67
  68 all_32: $(BINARIES_32)
  69
  70 all_64: $(BINARIES_64)
  71
  72 EXTRA_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) $^ -lrt -ldl
  79
  80 # x86_64 users should be encouraged to install 32-bit libraries
  81 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
  82 all: warn_32bit_failure
  83
  84 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; \
  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;
 100 endif
 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