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/* 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 <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procmap.h>
#include <errno.h>
#include "safeio.h"
static const unsigned long _glibtop_sysdeps_proc_map =
(1L << GLIBTOP_PROC_MAP_NUMBER) + (1L << GLIBTOP_PROC_MAP_TOTAL) +
(1L << GLIBTOP_PROC_MAP_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. */
void
glibtop_init_proc_map_s (glibtop *server)
{
server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;
}
/* Provides detailed information about a process. */
glibtop_map_entry *
glibtop_get_proc_map_s (glibtop *server, glibtop_proc_map *buf, pid_t pid)
{
int fd, i, nmaps, pr_err, heap;
#if GLIBTOP_SOLARIS_RELEASE >= 50600
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 (buf, 0, sizeof (glibtop_proc_map));
#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 = g_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 = g_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
buf->number = nmaps;
buf->size = sizeof(glibtop_map_entry);
buf->total = nmaps * sizeof(glibtop_map_entry);
entry = g_malloc0(buf->total);
#if GLIBTOP_SOLARIS_RELEASE >= 50600
if(server->machine.objname && server->machine.pgrab &&
server->machine.pfree)
Pr = (server->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 >= 50600
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;
entry[i].size = maps[i].pr_size;
}
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 >= 50600
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->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 >= 50600
if(Pr)
server->machine.pfree(Pr);
#endif
buf->flags = _glibtop_sysdeps_proc_map;
s_close(fd);
return entry;
}
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