OSCL-LXR

0001 # SPDX-License-Identifier: GPL-2.0
0002 all:
0003
0004 include ../lib.mk
0005
0006 .PHONY: all all_32 all_64 warn_32bit_failure clean
0007
0008 UNAME_M := $(shell uname -m)
0009 CAN_BUILD_I386 := $(shell ./check_cc.sh "$(CC)" trivial_32bit_program.c -m32)
0010 CAN_BUILD_X86_64 := $(shell ./check_cc.sh "$(CC)" trivial_64bit_program.c)
0011 CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh "$(CC)" trivial_program.c -no-pie)
0012
0013 TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \
0014                         check_initial_reg_state sigreturn iopl ioperm \
0015                         test_vsyscall mov_ss_trap \
0016                         syscall_arg_fault fsgsbase_restore sigaltstack
0017 TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \
0018                         test_FCMOV test_FCOMI test_FISTTP \
0019                         vdso_restorer
0020 TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \
0021                         corrupt_xstate_header amx
0022 # Some selftests require 32bit support enabled also on 64bit systems
0023 TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall
0024
0025 TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED)
0026 TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
0027 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11)
0028 TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED)
0029 endif
0030
0031 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
0032 BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
0033
0034 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
0035 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
0036
0037 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
0038
0039 # call32_from_64 in thunks.S uses absolute addresses.
0040 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
0041 CFLAGS += -no-pie
0042 endif
0043
0044 define gen-target-rule-32
0045 $(1) $(1)_32: $(OUTPUT)/$(1)_32
0046 .PHONY: $(1) $(1)_32
0047 endef
0048
0049 define gen-target-rule-64
0050 $(1) $(1)_64: $(OUTPUT)/$(1)_64
0051 .PHONY: $(1) $(1)_64
0052 endef
0053
0054 ifeq ($(CAN_BUILD_I386),1)
0055 all: all_32
0056 TEST_PROGS += $(BINARIES_32)
0057 EXTRA_CFLAGS += -DCAN_BUILD_32
0058 $(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t))))
0059 endif
0060
0061 ifeq ($(CAN_BUILD_X86_64),1)
0062 all: all_64
0063 TEST_PROGS += $(BINARIES_64)
0064 EXTRA_CFLAGS += -DCAN_BUILD_64
0065 $(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t))))
0066 endif
0067
0068 all_32: $(BINARIES_32)
0069
0070 all_64: $(BINARIES_64)
0071
0072 EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64)
0073
0074 $(BINARIES_32): $(OUTPUT)/%_32: %.c helpers.h
0075         $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm
0076
0077 $(BINARIES_64): $(OUTPUT)/%_64: %.c helpers.h
0078         $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
0079
0080 # x86_64 users should be encouraged to install 32-bit libraries
0081 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
0082 all: warn_32bit_failure
0083
0084 warn_32bit_failure:
0085         @echo "Warning: you seem to have a broken 32-bit build" 2>&1;   \
0086         echo "environment.  This will reduce test coverage of 64-bit" 2>&1; \
0087         echo "kernels.  If you are using a Debian-like distribution," 2>&1; \
0088         echo "try:"; 2>&1; \
0089         echo "";                                                        \
0090         echo "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
0091         echo "";                                                        \
0092         echo "If you are using a Fedora-like distribution, try:";       \
0093         echo "";                                                        \
0094         echo "  yum install glibc-devel.*i686";                         \
0095         echo "";                                                        \
0096         echo "If you are using a SUSE-like distribution, try:";         \
0097         echo "";                                                        \
0098         echo "  zypper install gcc-32bit glibc-devel-static-32bit";     \
0099         exit 0;
0100 endif
0101
0102 # Some tests have additional dependencies.
0103 $(OUTPUT)/sysret_ss_attrs_64: thunks.S
0104 $(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S
0105 $(OUTPUT)/test_syscall_vdso_32: thunks_32.S
0106
0107 # check_initial_reg_state is special: it needs a custom entry, and it
0108 # needs to be static so that its interpreter doesn't destroy its initial
0109 # state.
0110 $(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
0111 $(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static