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authorJes Sorensen <Jes.Sorensen@redhat.com>2010-06-10 11:42:31 +0200
committerBlue Swirl <blauwirbel@gmail.com>2010-06-12 08:49:15 +0300
commitce798cf2a261eaf4186f416f150b7361d395c3a5 (patch)
tree40e17997d934728e359f30c43ad52051af4f9ded /os-posix.c
parent9156d76331f2d51ce5b17cc945dd97788fc64c5a (diff)
downloadqemu-arm-ce798cf2a261eaf4186f416f150b7361d395c3a5.tar.gz
Move set_proc_name() to OS specific files.
Move handling to change process name to POSIX specific files plus add a better error message to cover the case where the feature isn't supported. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'os-posix.c')
-rw-r--r--os-posix.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/os-posix.c b/os-posix.c
index 9bae8fe09e..804e20c189 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -37,6 +37,10 @@
#include "net/slirp.h"
#include "qemu-options.h"
+#ifdef CONFIG_LINUX
+#include <sys/prctl.h>
+#endif
+
static struct passwd *user_pwd;
static const char *chroot_dir;
static int daemonize;
@@ -139,6 +143,26 @@ char *os_find_datadir(const char *argv0)
#undef SHARE_SUFFIX
#undef BUILD_SUFFIX
+void os_set_proc_name(const char *s)
+{
+#if defined(PR_SET_NAME)
+ char name[16];
+ if (!s)
+ return;
+ name[sizeof(name) - 1] = 0;
+ strncpy(name, s, sizeof(name));
+ /* Could rewrite argv[0] too, but that's a bit more complicated.
+ This simple way is enough for `top'. */
+ if (prctl(PR_SET_NAME, name)) {
+ perror("unable to change process name");
+ exit(1);
+ }
+#else
+ fprintf(stderr, "Change of process name not supported by your OS\n");
+ exit(1);
+#endif
+}
+
/*
* Parse OS specific command line options.
* return 0 if option handled, -1 otherwise