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 c
7
8 UNAME_M := $(shell uname -m)
9 CAN_BUILD_I386 := $(shell ./check_cc.sh "$(CC)
10 CAN_BUILD_X86_64 := $(shell ./check_cc.sh "$(C
11 CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh
12
13 TARGETS_C_BOTHBITS := single_step_syscall sysr
14 check_initial_reg_stat
15 test_vsyscall mov_ss_t
16 syscall_arg_fault fsgs
17 TARGETS_C_BOTHBITS += nx_stack
18 TARGETS_C_32BIT_ONLY := entry_from_vm86 test_s
19 test_FCMOV test_FCOMI
20 vdso_restorer
21 TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip sy
22 corrupt_xstate_header
23 # Some selftests require 32bit support enabled
24 TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_sysca
25
26 TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $
27 TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $
28 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11)
29 TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDE
30 endif
31
32 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
33 BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
34
35 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINA
36 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINA
37
38 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall $(K
39
40 # call32_from_64 in thunks.S uses absolute add
41 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
42 CFLAGS += -no-pie
43
44 ifneq ($(LLVM),)
45 # clang only wants to see -no-pie during linki
46 # linking stage, so a compiler warning is unav
47 # restructuring the Makefile. Avoid this by si
48 CFLAGS += -Wno-unused-command-line-argument
49 endif
50 endif
51
52 define gen-target-rule-32
53 $(1) $(1)_32: $(OUTPUT)/$(1)_32
54 .PHONY: $(1) $(1)_32
55 endef
56
57 define gen-target-rule-64
58 $(1) $(1)_64: $(OUTPUT)/$(1)_64
59 .PHONY: $(1) $(1)_64
60 endef
61
62 ifeq ($(CAN_BUILD_I386),1)
63 all: all_32
64 TEST_PROGS += $(BINARIES_32)
65 EXTRA_CFLAGS += -DCAN_BUILD_32
66 $(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(ca
67 endif
68
69 ifeq ($(CAN_BUILD_X86_64),1)
70 all: all_64
71 TEST_PROGS += $(BINARIES_64)
72 EXTRA_CFLAGS += -DCAN_BUILD_64
73 $(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(ca
74 endif
75
76 all_32: $(BINARIES_32)
77
78 all_64: $(BINARIES_64)
79
80 EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64) s
81
82 $(BINARIES_32): $(OUTPUT)/%_32: %.c helpers.h
83 $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFL
84
85 $(BINARIES_64): $(OUTPUT)/%_64: %.c helpers.h
86 $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFL
87
88 # x86_64 users should be encouraged to install
89 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
90 all: warn_32bit_failure
91
92 warn_32bit_failure:
93 @echo "Warning: you seem to have a bro
94 echo "environment. This will reduce t
95 echo "kernels. If you are using a Deb
96 echo "try:"; 2>&1; \
97 echo "";
98 echo " apt-get install gcc-multilib l
99 echo "";
100 echo "If you are using a Fedora-like d
101 echo "";
102 echo " yum install glibc-devel.*i686"
103 echo "";
104 echo "If you are using a SUSE-like dis
105 echo "";
106 echo " zypper install gcc-32bit glibc
107 exit 0;
108 endif
109
110 # Add an additional file to the source file li
111 # add a Makefile dependency on that same file.
112 # that the compiler invocation ("$(CC) file1.c
113 # the dependencies ("header3.h"), because clan
114 # header files as an input to the compiler inv
115 define extra-files
116 $(OUTPUT)/$(1): EXTRA_FILES := $(2)
117 $(OUTPUT)/$(1): $(2)
118 endef
119
120 $(eval $(call extra-files,sysret_ss_attrs_64,t
121 $(eval $(call extra-files,ptrace_syscall_32,ra
122 $(eval $(call extra-files,test_syscall_vdso_32
123 $(eval $(call extra-files,fsgsbase_restore_64,
124 $(eval $(call extra-files,fsgsbase_restore_32,
125 $(eval $(call extra-files,sysret_rip_64,clang_
126
127 # check_initial_reg_state is special: it needs
128 # needs to be static so that its interpreter d
129 # state.
130 $(OUTPUT)/check_initial_reg_state_32: CFLAGS +
131 $(OUTPUT)/check_initial_reg_state_64: CFLAGS +
132
133 $(OUTPUT)/nx_stack_32: CFLAGS += -Wl,-z,noexec
134 $(OUTPUT)/nx_stack_64: CFLAGS += -Wl,-z,noexec
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