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authorAndy Lutomirski <luto@kernel.org>2015-10-06 03:47:51 +0300
committerIngo Molnar <mingo@kernel.org>2015-10-07 12:34:06 +0300
commit3b56aae34bc695638b8673fc8459be1837c18730 (patch)
treedfba89c8a41302038504e46067aae8f60f70d166 /tools/testing/selftests/x86/Makefile
parent7e0f51cb445be8d3aee80e433ed8da4a33ad0157 (diff)
downloadlinux-3b56aae34bc695638b8673fc8459be1837c18730.tar.xz
selftests/x86: Add a test for vDSO unwinding
While the kernel itself doesn't use DWARF unwinding, user code expects to be able to unwind the vDSO. The vsyscall (AT_SYSINFO) entry is manually CFI-annotated, and this tests that it unwinds correctly. I tested the test by incorrectly annotating __kernel_vsyscall, and the test indeed fails if I do that. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/8bf736d1925cdd165c0f980156a4248e55af47a1.1444091584.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/testing/selftests/x86/Makefile')
-rw-r--r--tools/testing/selftests/x86/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index fd55bc37fa18..75413529f4a2 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -5,7 +5,7 @@ include ../lib.mk
.PHONY: all all_32 all_64 warn_32bit_failure clean
TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs ldt_gdt syscall_nt
-TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault sigreturn test_syscall_vdso
+TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault sigreturn test_syscall_vdso unwind_vdso
TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)