2 * Utility function to get QEMU's own process map
4 * Copyright (c) 2020 Linaro Ltd
6 * SPDX-License-Identifier: GPL-2.0-or-later
9 #include "qemu/osdep.h"
10 #include "qemu/cutils.h"
11 #include "qemu/selfmap.h"
13 GSList *read_self_maps(void)
16 GSList *map_info = NULL;
18 if (g_file_get_contents("/proc/self/maps", &maps, NULL, NULL)) {
19 gchar **lines = g_strsplit(maps, "\n", 0);
20 int i, entries = g_strv_length(lines);
22 for (i = 0; i < entries; i++) {
23 gchar **fields = g_strsplit(lines[i], " ", 6);
24 if (g_strv_length(fields) > 4) {
25 MapInfo *e = g_new0(MapInfo, 1);
29 errors |= qemu_strtoul(fields[0], &end, 16, &e->start);
30 errors |= qemu_strtoul(end + 1, NULL, 16, &e->end);
32 e->is_read = fields[1][0] == 'r';
33 e->is_write = fields[1][1] == 'w';
34 e->is_exec = fields[1][2] == 'x';
35 e->is_priv = fields[1][3] == 'p';
37 errors |= qemu_strtoul(fields[2], NULL, 16, &e->offset);
38 e->dev = g_strdup(fields[3]);
39 errors |= qemu_strtou64(fields[4], NULL, 10, &e->inode);
43 * The last field may have leading spaces which we
46 if (g_strv_length(fields) == 6) {
47 e->path = g_strdup(g_strchug(fields[5]));
49 map_info = g_slist_prepend(map_info, e);
62 /* ensure the map data is in the same order we collected it */
63 return g_slist_reverse(map_info);
70 * Free a list of MapInfo structures.
72 static void free_info(gpointer data)
74 MapInfo *e = (MapInfo *) data;
80 void free_self_maps(GSList *info)
82 g_slist_free_full(info, &free_info);