tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2all:
3
4include ../lib.mk
5
6.PHONY: all all_32 all_64 warn_32bit_failure clean
7
8TARGETS_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 test_vsyscall
11TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault test_syscall_vdso unwind_vdso \
12 test_FCMOV test_FCOMI test_FISTTP \
13 vdso_restorer
14TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip 5lvl
15
16TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
17TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
18BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
19BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
20
21BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
22BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
23
24CFLAGS := -O2 -g -std=gnu99 -pthread -Wall -no-pie
25
26UNAME_M := $(shell uname -m)
27CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
28CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
29
30ifeq ($(CAN_BUILD_I386),1)
31all: all_32
32TEST_PROGS += $(BINARIES_32)
33endif
34
35ifeq ($(CAN_BUILD_X86_64),1)
36all: all_64
37TEST_PROGS += $(BINARIES_64)
38endif
39
40all_32: $(BINARIES_32)
41
42all_64: $(BINARIES_64)
43
44EXTRA_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) $^ -lrt -ldl
51
52# x86_64 users should be encouraged to install 32-bit libraries
53ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
54all: warn_32bit_failure
55
56warn_32bit_failure:
57 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
58 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
59 echo "kernels. If you are using a Debian-like distribution," 2>&1; \
60 echo "try:"; 2>&1; \
61 echo ""; \
62 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
63 echo ""; \
64 echo "If you are using a Fedora-like distribution, try:"; \
65 echo ""; \
66 echo " yum install glibc-devel.*i686"; \
67 exit 0;
68endif
69
70# Some tests have additional dependencies.
71$(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