mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-19 02:54:00 +08:00
e754aedc26
I've had this code for a while, but never submitted it upstream. Now that Skylake hardware is out in the wild, folks can actually run this for real. It tests the following: 1. The MPX hardware is enabled by the kernel and doing what it is supposed to 2. The MPX management code is present and enabled in the kernel 3. MPX Signal handling 4. The MPX bounds table population code (on-demand population) 5. The MPX bounds table unmapping code (kernel-initiated freeing when unused) This has also caught bugs in the XSAVE code because MPX state is saved/restored with XSAVE. I'm submitting it now because it would have caught the recent issues with the compat_siginfo code not being properly augmented when new siginfo state is added. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20160608172535.5B40B0EE@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
76 lines
2.3 KiB
Makefile
76 lines
2.3 KiB
Makefile
all:
|
|
|
|
include ../lib.mk
|
|
|
|
.PHONY: all all_32 all_64 warn_32bit_failure clean
|
|
|
|
TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt ptrace_syscall \
|
|
check_initial_reg_state sigreturn ldt_gdt iopl mpx-mini-test
|
|
TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault test_syscall_vdso unwind_vdso \
|
|
test_FCMOV test_FCOMI test_FISTTP \
|
|
vdso_restorer
|
|
TARGETS_C_64BIT_ONLY := fsgsbase
|
|
|
|
TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
|
|
TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
|
|
BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
|
|
BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
|
|
|
|
CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
|
|
|
|
UNAME_M := $(shell uname -m)
|
|
CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
|
|
CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
|
|
|
|
ifeq ($(CAN_BUILD_I386),1)
|
|
all: all_32
|
|
TEST_PROGS += $(BINARIES_32)
|
|
endif
|
|
|
|
ifeq ($(CAN_BUILD_X86_64),1)
|
|
all: all_64
|
|
TEST_PROGS += $(BINARIES_64)
|
|
endif
|
|
|
|
all_32: $(BINARIES_32)
|
|
|
|
all_64: $(BINARIES_64)
|
|
|
|
clean:
|
|
$(RM) $(BINARIES_32) $(BINARIES_64)
|
|
|
|
$(TARGETS_C_32BIT_ALL:%=%_32): %_32: %.c
|
|
$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm
|
|
|
|
$(TARGETS_C_64BIT_ALL:%=%_64): %_64: %.c
|
|
$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
|
|
|
|
# x86_64 users should be encouraged to install 32-bit libraries
|
|
ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
|
|
all: warn_32bit_failure
|
|
|
|
warn_32bit_failure:
|
|
@echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
|
|
echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
|
|
echo "kernels. If you are using a Debian-like distribution," 2>&1; \
|
|
echo "try:"; 2>&1; \
|
|
echo ""; \
|
|
echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
|
|
echo ""; \
|
|
echo "If you are using a Fedora-like distribution, try:"; \
|
|
echo ""; \
|
|
echo " yum install glibc-devel.*i686"; \
|
|
exit 0;
|
|
endif
|
|
|
|
# Some tests have additional dependencies.
|
|
sysret_ss_attrs_64: thunks.S
|
|
ptrace_syscall_32: raw_syscall_helper_32.S
|
|
test_syscall_vdso_32: thunks_32.S
|
|
|
|
# check_initial_reg_state is special: it needs a custom entry, and it
|
|
# needs to be static so that its interpreter doesn't destroy its initial
|
|
# state.
|
|
check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
|
|
check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static
|