linux-kernel - [PATCH] samples/seccomp: fix 32-bit build

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Message-Id: <20190107231631.1849-1-tycho@tycho.ws>
Date:   Mon,  7 Jan 2019 16:16:31 -0700
From:   Tycho Andersen <tycho@...ho.ws>
To:     Ingo Molnar <mingo@...nel.org>, Kees Cook <keescook@...omium.org>
Cc:     linux-kernel@...r.kernel.org, James Morris <jmorris@...ei.org>,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tycho Andersen <tycho@...ho.ws>
Subject: [PATCH] samples/seccomp: fix 32-bit build

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

Signed-off-by: Tycho Andersen <tycho@...ho.ws>
Reported-by: Ingo Molnar <mingo@...nel.org>
Fixes: fec7b6690541 ("samples: add an example of seccomp user trap")
---
I guess x86 can pick this up directly? Not sure where it should go
exactly.
---
 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)
-- 
2.19.1