From 82386110e67cf75c224e9817fce55e6b0f143266 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Mon, 8 Feb 2021 07:23:54 +0100 Subject: [PATCH] src/privsep-linux.c: add support for arc (#28) Fix the following build failure: privsep-linux.c:206:4: error: #error "Platform does not support seccomp filter yet" # error "Platform does not support seccomp filter yet" ^~~~~ In file included from privsep-linux.c:36: privsep-linux.c:213:38: error: 'SECCOMP_AUDIT_ARCH' undeclared here (not in a function); did you mean 'SECCOMP_ALLOW_ARG'? BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SECCOMP_AUDIT_ARCH, 1, 0), ^~~~~~~~~~~~~~~~~~ It should be noted that AUDIT_ARCH_{ARCOMPACT,ARCV2} is only defined since kernel 5.2 and https://github.com/torvalds/linux/commit/67f2a8a29311841ba6ab9b0e2d1b8f1e9978cd84 Detection of arc compact and arc v2 have been "copy/pasted" from https://github.com/wbx-github/uclibc-ng/commit/afab56958f1cbb47b831ee3ebff231dfbae74af2 Fixes: - http://autobuild.buildroot.org/results/d29083700a80dd647621eed06faeeae03f0587d3 Upstream-Status: Backport [https://github.com/NetworkConfiguration/dhcpcd/commit/82386110e67cf75c224e9817fce55e6b0f143266] Signed-off-by: Fabrice Fontaine Signed-off-by: Alexey Brodkin --- src/privsep-linux.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/privsep-linux.c b/src/privsep-linux.c index 402667af..21d41a9a 100644 --- a/src/privsep-linux.c +++ b/src/privsep-linux.c @@ -149,6 +149,22 @@ ps_root_sendnetlink(struct dhcpcd_ctx *ctx, int protocol, struct msghdr *msg) # define SECCOMP_AUDIT_ARCH AUDIT_ARCH_I386 #elif defined(__x86_64__) # define SECCOMP_AUDIT_ARCH AUDIT_ARCH_X86_64 +#elif defined(__arc__) +# if defined(__A7__) +# if (BYTE_ORDER == LITTLE_ENDIAN) +# define SECCOMP_AUDIT_ARCH AUDIT_ARCH_ARCOMPACT +# else +# define SECCOMP_AUDIT_ARCH AUDIT_ARCH_ARCOMPACTBE +# endif +# elif defined(__HS__) +# if (BYTE_ORDER == LITTLE_ENDIAN) +# define SECCOMP_AUDIT_ARCH AUDIT_ARCH_ARCV2 +# else +# define SECCOMP_AUDIT_ARCH AUDIT_ARCH_ARCV2BE +# endif +# else +# error "Platform does not support seccomp filter yet" +# endif #elif defined(__arm__) # ifndef EM_ARM # define EM_ARM 40 -- 2.16.2