From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sun, 31 Jan 2021 02:35:10 +0000 (+0100)
Subject:  src/privsep-linux.c: add support for xtensa (#22)
X-Git-Tag: v9.4.1~30
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2a7b12592a1fb7d61933fa5647df1e847317ca67;p=thirdparty%2Fdhcpcd.git

 src/privsep-linux.c: add support for xtensa (#22)

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_XTENSA is only defined since kernel
5.0 and
https://github.com/torvalds/linux/commit/98c3115a4ec56f03056efd9295e0fcb4c5c57a85

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---

diff --git a/src/privsep-linux.c b/src/privsep-linux.c
index 8716032c..f1b33f91 100644
--- a/src/privsep-linux.c
+++ b/src/privsep-linux.c
@@ -204,6 +204,8 @@ ps_root_sendnetlink(struct dhcpcd_ctx *ctx, int protocol, struct msghdr *msg)
 #  else
 #    define AUDIT_ARCH_SPARC
 #  endif
+#elif defined(__xtensa__)
+#  define SECCOMP_AUDIT_ARCH AUDIT_ARCH_XTENSA
 #else
 #  error "Platform does not support seccomp filter yet"
 #endif