diff options
Diffstat (limited to 'gdb/nto-procfs.c')
| -rw-r--r-- | gdb/nto-procfs.c | 63 |
1 files changed, 38 insertions, 25 deletions
diff --git a/gdb/nto-procfs.c b/gdb/nto-procfs.c index d659f79..264d88b 100644 --- a/gdb/nto-procfs.c +++ b/gdb/nto-procfs.c @@ -73,7 +73,7 @@ static int procfs_stopped_by_watchpoint (struct target_ops *ops); referenced elsewhere. 'nto_procfs_node' is a flag used to say whether we are local, or we should get the current node descriptor for the remote QNX node. */ -static char nto_procfs_path[PATH_MAX] = { "/proc" }; +static char *nodestr; static unsigned nto_procfs_node = ND_LOCAL_NODE; /* Return the current QNX Node, or error out. This is a simple @@ -85,10 +85,11 @@ nto_node (void) { unsigned node; - if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0) + if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0 + || nodestr == NULL) return ND_LOCAL_NODE; - node = netmgr_strtond (nto_procfs_path, 0); + node = netmgr_strtond (nodestr, 0); if (node == -1) error (_("Lost the QNX node. Debug session probably over.")); @@ -108,12 +109,12 @@ procfs_is_nto_target (bfd *abfd) static void procfs_open_1 (struct target_ops *ops, const char *arg, int from_tty) { - char *nodestr; char *endstr; char buffer[50]; int fd, total_size; procfs_sysinfo *sysinfo; struct cleanup *cleanups; + char nto_procfs_path[PATH_MAX]; /* Offer to kill previous inferiors before opening this target. */ target_preopen (from_tty); @@ -123,8 +124,11 @@ procfs_open_1 (struct target_ops *ops, const char *arg, int from_tty) /* Set the default node used for spawning to this one, and only override it if there is a valid arg. */ + xfree (nodestr); + nodestr = NULL; + nto_procfs_node = ND_LOCAL_NODE; - nodestr = arg ? xstrdup (arg) : NULL; + nodestr = (arg != NULL) ? xstrdup (arg) : NULL; init_thread_list (); @@ -149,10 +153,8 @@ procfs_open_1 (struct target_ops *ops, const char *arg, int from_tty) *endstr = 0; } } - snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", nodestr ? nodestr : "", - "/proc"); - if (nodestr) - xfree (nodestr); + snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", + (nodestr != NULL) ? nodestr : "", "/proc"); fd = open (nto_procfs_path, O_RDONLY); if (fd == -1) @@ -174,7 +176,7 @@ procfs_open_1 (struct target_ops *ops, const char *arg, int from_tty) { total_size = sysinfo->total_size; sysinfo = alloca (total_size); - if (!sysinfo) + if (sysinfo == NULL) { printf_filtered ("Memory error: %d (%s)\n", errno, safe_strerror (errno)); @@ -359,7 +361,7 @@ procfs_pidlist (char *args, int from_tty) { DIR *dp = NULL; struct dirent *dirp = NULL; - char buf[512]; + char buf[PATH_MAX]; procfs_info *pidinfo = NULL; procfs_debuginfo *info = NULL; procfs_status *status = NULL; @@ -367,12 +369,16 @@ procfs_pidlist (char *args, int from_tty) pid_t pid; char name[512]; struct cleanup *cleanups; + char procfs_dir[PATH_MAX]; - dp = opendir (nto_procfs_path); + snprintf (procfs_dir, sizeof (procfs_dir), "%s%s", + (nodestr != NULL) ? nodestr : "", "/proc"); + + dp = opendir (procfs_dir); if (dp == NULL) { fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)", - nto_procfs_path, errno, safe_strerror (errno)); + procfs_dir, errno, safe_strerror (errno)); return; } @@ -395,7 +401,9 @@ procfs_pidlist (char *args, int from_tty) do_cleanups (cleanups); return; } - snprintf (buf, 511, "%s/%s/as", nto_procfs_path, dirp->d_name); + snprintf (buf, sizeof (buf), "%s%s/%s/as", + (nodestr != NULL) ? nodestr : "", + "/proc", dirp->d_name); pid = atoi (dirp->d_name); } while (pid == 0); @@ -406,8 +414,7 @@ procfs_pidlist (char *args, int from_tty) { fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n", buf, errno, safe_strerror (errno)); - do_cleanups (cleanups); - return; + continue; } inner_cleanup = make_cleanup_close (fd); @@ -431,11 +438,16 @@ procfs_pidlist (char *args, int from_tty) status = (procfs_status *) buf; for (status->tid = 1; status->tid <= num_threads; status->tid++) { - if (devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0) != EOK - && status->tid != 0) - break; - if (status->tid != 0) - printf_filtered ("%s - %d/%d\n", name, pid, status->tid); + const int err + = devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0); + printf_filtered ("%s - %d", name, pid); + if (err == EOK && status->tid != 0) + printf_filtered ("/%d\n", status->tid); + else + { + printf_filtered ("\n"); + break; + } } do_cleanups (inner_cleanup); @@ -599,7 +611,8 @@ procfs_files_info (struct target_ops *ignore) printf_unfiltered ("\tUsing the running image of %s %s via %s.\n", inf->attach_flag ? "attached" : "child", - target_pid_to_str (inferior_ptid), nto_procfs_path); + target_pid_to_str (inferior_ptid), + (nodestr != NULL) ? nodestr : "local node"); } /* Attach to process PID, then initialize for debugging it. */ @@ -653,8 +666,8 @@ do_attach (ptid_t ptid) struct sigevent event; char path[PATH_MAX]; - snprintf (path, PATH_MAX - 1, "%s/%d/as", nto_procfs_path, - ptid_get_pid (ptid)); + snprintf (path, PATH_MAX - 1, "%s%s/%d/as", + (nodestr != NULL) ? nodestr : "", "/proc", ptid_get_pid (ptid)); ctl_fd = open (path, O_RDWR); if (ctl_fd == -1) error (_("Couldn't open proc file %s, error %d (%s)"), path, errno, @@ -1121,7 +1134,7 @@ procfs_create_inferior (struct target_ops *ops, char *exec_file, } args = xstrdup (allargs); - breakup_args (args, exec_file ? &argv[1] : &argv[0]); + breakup_args (args, (exec_file != NULL) ? &argv[1] : &argv[0]); argv = nto_parse_redirection (argv, &in, &out, &err); |