diff options
Diffstat (limited to 'os-posix.c')
-rw-r--r-- | os-posix.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -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 |