[tip:x86/urgent] samples/seccomp: Fix 32-bit build

[tip-bot for Tycho Andersen]

Commit-ID:  a77d1d196bc63b37d9b4d1b614884669e8e79d32
Gitweb:     https://git.kernel.org/tip/a77d1d196bc63b37d9b4d1b614884669e8e79d32
Author:     Tycho Andersen <tycho@xxxxxxxx>
AuthorDate: Mon, 7 Jan 2019 16:16:31 -0700
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 8 Jan 2019 07:45:01 +0100

samples/seccomp: Fix 32-bit build

Both the .o and the actual executable need to be built with -m32 in order
to link correctly.

Reported-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Tycho Andersen <tycho@xxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: James Morris <jmorris@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Fixes: fec7b6690541 ("samples: add an example of seccomp user trap")
Link: http://lkml.kernel.org/r/20190107231631.1849-1-tycho@xxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 samples/seccomp/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
index 4920903c8009..fb43a814d4c0 100644
--- a/samples/seccomp/Makefile
+++ b/samples/seccomp/Makefile
@@ -34,6 +34,7 @@ HOSTCFLAGS_bpf-direct.o += $(MFLAG)
 HOSTCFLAGS_dropper.o += $(MFLAG)
 HOSTCFLAGS_bpf-helper.o += $(MFLAG)
 HOSTCFLAGS_bpf-fancy.o += $(MFLAG)
+HOSTCFLAGS_user-trap.o += $(MFLAG)
 HOSTLDLIBS_bpf-direct += $(MFLAG)
 HOSTLDLIBS_bpf-fancy += $(MFLAG)
 HOSTLDLIBS_dropper += $(MFLAG)