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 TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt ptrace_syscall test_mremap_vdso \
   9                         check_initial_reg_state sigreturn ldt_gdt iopl mpx-mini-test ioperm \
  10                         protection_keys test_vdso
  11 TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault test_syscall_vdso unwind_vdso \
  12                         test_FCMOV test_FCOMI test_FISTTP \
  13                         vdso_restorer
  14 TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip
  15
  16 TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
  17 TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
  18 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
  19 BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
  20
  21 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
  22 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
  23
  24 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall -no-pie
  25
  26 UNAME_M := $(shell uname -m)
  27 CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
  28 CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
  29
  30 ifeq ($(CAN_BUILD_I386),1)
  31 all: all_32
  32 TEST_PROGS += $(BINARIES_32)
  33 endif
  34
  35 ifeq ($(CAN_BUILD_X86_64),1)
  36 all: all_64
  37 TEST_PROGS += $(BINARIES_64)
  38 endif
  39
  40 all_32: $(BINARIES_32)
  41
  42 all_64: $(BINARIES_64)
  43
  44 EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64)
  45
  46 $(BINARIES_32): $(OUTPUT)/%_32: %.c
  47         $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm
  48
  49 $(BINARIES_64): $(OUTPUT)/%_64: %.c
  50         $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
  51
  52 # x86_64 users should be encouraged to install 32-bit libraries
  53 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
  54 all: warn_32bit_failure
  55
  56 warn_32bit_failure:
  57         @echo "Warning: you seem to have a broken 32-bit build" 2>&1;   \
  58         echo "environment.  This will reduce test coverage of 64-bit" 2>&1; \
  59         echo "kernels.  If you are using a Debian-like distribution," 2>&1; \
  60         echo "try:"; 2>&1; \
  61         echo "";                                                        \
  62         echo "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
  63         echo "";                                                        \
  64         echo "If you are using a Fedora-like distribution, try:";       \
  65         echo "";                                                        \
  66         echo "  yum install glibc-devel.*i686";                         \
  67         exit 0;
  68 endif
  69
  70 # Some tests have additional dependencies.
  71 $(OUTPUT)/sysret_ss_attrs_64: thunks.S
  72 $(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S
  73 $(OUTPUT)/test_syscall_vdso_32: thunks_32.S
  74
  75 # check_initial_reg_state is special: it needs a custom entry, and it
  76 # needs to be static so that its interpreter doesn't destroy its initial
  77 # state.
  78 $(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
  79 $(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static