libgtop/sysdeps/solaris/procmap.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/* $Id$ */

/* Copyright (C) 1998-99 Martin Baulig
   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.

   LibGTop is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License,
   or (at your option) any later version.

   LibGTop is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   for more details.

   You should have received a copy of the GNU General Public License
   along with LibGTop; see the file COPYING. If not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/


#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/xmalloc.h>
#include <glibtop/procmap.h>

#include <errno.h>
#include <alloca.h>

#include <glibtop_private.h>

static const unsigned long _glibtop_sysdeps_proc_map =
(1L << GLIBTOP_ARRAY_NUMBER) + (1L << GLIBTOP_ARRAY_TOTAL) +
(1L << GLIBTOP_ARRAY_SIZE);

static const unsigned long _glibtop_sysdeps_map_entry =
(1L << GLIBTOP_MAP_ENTRY_START) + (1L << GLIBTOP_MAP_ENTRY_END) +
(1L << GLIBTOP_MAP_ENTRY_OFFSET) + (1L << GLIBTOP_MAP_ENTRY_PERM);
static const unsigned long _glibtop_sysdeps_map_device =
(1L << GLIBTOP_MAP_ENTRY_DEVICE) + (1L << GLIBTOP_MAP_ENTRY_INODE);

/* Init function. */

int
glibtop_init_proc_map_s (glibtop *server)
{
    server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;

    return 0;
}

/* Provides detailed information about a process. */

glibtop_map_entry *
glibtop_get_proc_map_s (glibtop *server, glibtop_array *array, pid_t pid)
{
    int fd, i, nmaps, pr_err, heap;
#if GLIBTOP_SOLARIS_RELEASE >= 560
    prxmap_t *maps;
    struct ps_prochandle *Pr = NULL;
#else
    prmap_t *maps;
#endif

    /* A few defines, to make it shorter down there */

#ifdef HAVE_PROCFS_H
# define OFFSET  pr_offset
#else
# define OFFSET  pr_off
#endif

    glibtop_map_entry *entry;
    struct stat inode;
    char buffer[BUFSIZ];
	
    memset (array, 0, sizeof (glibtop_array));

#ifdef HAVE_PROCFS_H
    sprintf(buffer, "/proc/%d/xmap", (int)pid);
#else
    sprintf(buffer, "/proc/%d", (int)pid);
#endif
    if((fd = s_open(buffer, O_RDONLY)) < 0) {
	if(errno != EPERM && errno != EACCES)
	    glibtop_warn_io_r(server, "open (%s)", buffer);
	return NULL;
    }
#ifdef HAVE_PROCFS_H
    if(fstat(fd, &inode) < 0) {
	if(errno != EOVERFLOW)
	    glibtop_warn_io_r(server, "fstat (%s)", buffer);
	/* else call daemon for 64-bit support */
	s_close(fd);
	return NULL;
    }
    maps = alloca(inode.st_size);
    nmaps = inode.st_size / sizeof(prxmap_t);
    if(s_pread(fd, maps, inode.st_size, 0) != inode.st_size) {
	glibtop_warn_io_r(server, "pread (%s)", buffer);
	s_close(fd);
	return NULL;
    }
#else
    if(ioctl(fd, PIOCNMAP, &nmaps) < 0) {
	glibtop_warn_io_r(server, "ioctl(%s, PIOCNMAP)", buffer);
	s_close(fd);
	return NULL;
    }
    maps = alloca((nmaps + 1) * sizeof(prmap_t));
    if(ioctl(fd, PIOCMAP, maps) < 0) {
	glibtop_warn_io_r(server, "ioctl(%s, PIOCMAP)", buffer);
	s_close(fd);
	return NULL;
    }
#endif
    if(!(entry = glibtop_malloc_r(server,
				  nmaps * sizeof(glibtop_map_entry))))
	return NULL;
    array->number = nmaps;
    array->size = sizeof(glibtop_map_entry);
    array->total = nmaps * sizeof(glibtop_map_entry);

    memset(entry, 0, nmaps * sizeof(glibtop_map_entry));

#if GLIBTOP_SOLARIS_RELEASE >= 560

    if(server->_priv->machine.objname && server->_priv->machine.pgrab &&
       server->_priv->machine.pfree)
	Pr = (server->_priv->machine.pgrab)(pid, 1, &pr_err);
#endif
    for(heap = 0,i = 0; i < nmaps; ++i) {
	int len;

	entry[i].start = maps[i].pr_vaddr;
	entry[i].end = maps[i].pr_vaddr + maps[i].pr_size;

#if GLIBTOP_SOLARIS_RELEASE >= 560

	if(maps[i].pr_dev != PRNODEV) {
	    entry[i].device = maps[i].pr_dev;
	    entry[i].inode = maps[i].pr_ino;
	    entry[i].flags |= _glibtop_sysdeps_map_device;
	}
#endif
	entry[i].offset = maps[i].OFFSET;
	if(maps[i].pr_mflags & MA_READ)
	    entry[i].perm |= GLIBTOP_MAP_PERM_READ;
	if(maps[i].pr_mflags & MA_WRITE)
	    entry[i].perm |= GLIBTOP_MAP_PERM_WRITE;
	if(maps[i].pr_mflags & MA_EXEC)
	    entry[i].perm |= GLIBTOP_MAP_PERM_EXECUTE;
	if(maps[i].pr_mflags & MA_SHARED)
	    entry[i].perm |= GLIBTOP_MAP_PERM_SHARED;
	else
	    entry[i].perm |= GLIBTOP_MAP_PERM_PRIVATE;
	entry[i].flags = _glibtop_sysdeps_map_entry;

#if GLIBTOP_SOLARIS_RELEASE >= 560

	if(maps[i].pr_mflags & MA_ANON) {
	    if(!heap) {
		++heap;
		strcpy(entry[i].filename, "[ heap ]");
	    } else {
		if(i == nmaps - 1)
		    strcpy(entry[i].filename, "[ stack ]");
		else
		    strcpy(entry[i].filename, "[ anon ]");
	    }
	    entry[i].flags |= (1L << GLIBTOP_MAP_ENTRY_FILENAME);
	} else {
	    if(Pr) {
		server->_priv->machine.objname(Pr, maps[i].pr_vaddr, buffer,
					       BUFSIZ);
		if((len = resolvepath(buffer, entry[i].filename,
				      GLIBTOP_MAP_FILENAME_LEN)) > 0) {
		    entry[i].filename[len] = 0;
		    entry[i].flags |= (1L << GLIBTOP_MAP_ENTRY_FILENAME);
		}
#endif
	    }
	}
    }

#if GLIBTOP_SOLARIS_RELEASE >= 560
    if(Pr)
	server->_priv->machine.pfree(Pr);
#endif

    array->flags = _glibtop_sysdeps_proc_map;
    s_close(fd);
    return entry;
}