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From 82386110e67cf75c224e9817fce55e6b0f143266 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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 <fontaine.fabrice@gmail.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
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
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