From ce798cf2a261eaf4186f416f150b7361d395c3a5 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Thu, 10 Jun 2010 11:42:31 +0200 Subject: 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 Acked-by: Juan Quintela Acked-by: Richard Henderson Signed-off-by: Blue Swirl --- os-posix.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'os-posix.c') 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 +#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 -- cgit v1.2.1