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[Qemu-devel] [PATCH] oslib-posix: Use sysctl(2) call to resolve exec_dir
From: |
Kamil Rytarowski |
Subject: |
[Qemu-devel] [PATCH] oslib-posix: Use sysctl(2) call to resolve exec_dir on NetBSD |
Date: |
Sat, 28 Oct 2017 21:48:33 +0200 |
NetBSD 8.0(beta) ships with KERN_PROC_PATHNAME in sysctl(2).
Older NetBSD versions can use argv[0] parsing fallback.
This code section is partly shared with FreeBSD.
Signed-off-by: Kamil Rytarowski <address@hidden>
---
util/oslib-posix.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 382bd4a231..77369c92ce 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -49,6 +49,10 @@
#include <libutil.h>
#endif
+#ifdef __NetBSD__
+#include <sys/sysctl.h>
+#endif
+
#include "qemu/mmap-alloc.h"
#ifdef CONFIG_DEBUG_STACK_USAGE
@@ -250,9 +254,14 @@ void qemu_init_exec_dir(const char *argv0)
p = buf;
}
}
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) \
+ || (defined(__NetBSD__) && defined(KERN_PROC_PATHNAME))
{
+#if defined(__FreeBSD__)
static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
+#else
+ static int mib[4] = {CTL_KERN, KERN_PROC_ARGS, -1, KERN_PROC_PATHNAME};
+#endif
size_t len = sizeof(buf) - 1;
*buf = '\0';
--
2.14.3
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