123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111 |
- /*
- * pmap implementation for busybox
- *
- * Copyright (C) 2010 Nokia Corporation. All rights reserved.
- * Written by Alexander Shishkin <virtuoso@slind.org>
- *
- * Licensed under GPLv2 or later, see the LICENSE file in this source tree
- * for details.
- */
- //applet:IF_PMAP(APPLET(pmap, _BB_DIR_USR_BIN, _BB_SUID_DROP))
- //kbuild:lib-$(CONFIG_PMAP) += pmap.o
- //config:config PMAP
- //config: bool "pmap"
- //config: default y
- //config: help
- //config: Display processes' memory mappings.
- //usage:#define pmap_trivial_usage
- //usage: "[-x][-q] PID"
- //usage:#define pmap_full_usage "\n\n"
- //usage: "Display detailed precesses' memory usage\n"
- //usage: "\nOptions:"
- //usage: "\n -x show details"
- //usage: "\n -q quiet"
- #include "libbb.h"
- #if ULONG_MAX == 0xffffffff
- # define TABS "\t"
- # define AFMT "8"
- # define DASHES ""
- #else
- # define TABS "\t\t"
- # define AFMT "16"
- # define DASHES "--------"
- #endif
- enum {
- OPT_x = 1 << 0,
- OPT_q = 1 << 1,
- };
- static void print_smaprec(struct smaprec *currec, void *data)
- {
- unsigned opt = (uintptr_t)data;
- printf("%0" AFMT "lx ", currec->smap_start);
- if (opt & OPT_x)
- printf("%7lu %7lu %7lu %7lu ",
- currec->smap_size,
- currec->smap_pss,
- currec->private_dirty,
- currec->smap_swap);
- else
- printf("%7luK", currec->smap_size);
- printf(" %.4s %s\n", currec->smap_mode, currec->smap_name);
- }
- static int procps_get_maps(pid_t pid, unsigned opt)
- {
- struct smaprec total;
- int ret;
- char buf[256];
- read_cmdline(buf, sizeof(buf), pid, "no such process");
- printf("%u: %s\n", (int)pid, buf);
- if (!(opt & OPT_q) && (opt & OPT_x))
- puts("Address" TABS " Kbytes PSS Dirty Swap Mode Mapping");
- memset(&total, 0, sizeof(total));
- ret = procps_read_smaps(pid, &total, print_smaprec, (void*)(uintptr_t)opt);
- if (ret)
- return ret;
- if (!(opt & OPT_q)) {
- if (opt & OPT_x)
- printf("--------" DASHES " ------ ------ ------ ------\n"
- "total" TABS " %7lu %7lu %7lu %7lu\n",
- total.smap_size, total.smap_pss, total.private_dirty, total.smap_swap);
- else
- printf("mapped: %luK\n", total.smap_size);
- }
- return 0;
- }
- int pmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
- int pmap_main(int argc UNUSED_PARAM, char **argv)
- {
- unsigned opts;
- int ret;
- opts = getopt32(argv, "xq");
- argv += optind;
- ret = 0;
- while (*argv) {
- pid_t pid = xatoi_positive(*argv++);
- /* GNU pmap returns 42 if any of the pids failed */
- if (procps_get_maps(pid, opts) != 0)
- ret = 42;
- }
- return ret;
- }
|