busybox

/*

 * 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.

 */

​

//config:config PMAP

//config:       bool "pmap"

//config:       default y

//config:       help

//config:         Display processes' memory mappings.

​

//applet:IF_PMAP(APPLET(pmap, BB_DIR_USR_BIN, BB_SUID_DROP))

//kbuild:lib-$(CONFIG_PMAP) += pmap.o

​

//usage:#define pmap_trivial_usage

//usage:       "[-xq] PID"

//usage:#define pmap_full_usage "\n\n"

//usage:       "Display detailed process memory usage"

//usage:     "\n"

//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)