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