aa6f26f9fb
* glibtop_private.h: Fixed typoo.
* procmap.c (glibtop_get_proc_map_s): Implemented start, end,
offset and perm for mapped segments. File name and inode
should be accessible from bunyip kstat data. The only
obstacle is that the data format is undocumented and
possibly not the same accross releases.
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/* $Id$ */
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/xmalloc.h>
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#include <glibtop/procmap.h>
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#include <errno.h>
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#include <alloca.h>
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static const unsigned long _glibtop_sysdeps_proc_map =
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(1L << GLIBTOP_PROC_MAP_NUMBER) + (1L << GLIBTOP_PROC_MAP_TOTAL) +
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(1L << GLIBTOP_PROC_MAP_SIZE);
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static const unsigned long _glibtop_sysdeps_map_entry =
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(1L << GLIBTOP_MAP_ENTRY_START) + (1L << GLIBTOP_MAP_ENTRY_END) +
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(1L << GLIBTOP_MAP_ENTRY_OFFSET) + (1L << GLIBTOP_MAP_ENTRY_PERM);
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/* Init function. */
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void
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glibtop_init_proc_map_s (glibtop *server)
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{
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server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;
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}
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/* Provides detailed information about a process. */
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glibtop_map_entry *
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glibtop_get_proc_map_s (glibtop *server, glibtop_proc_map *buf, pid_t pid)
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{
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int fd, i, nmaps;
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prmap_t *maps;
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glibtop_map_entry *entry;
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struct stat inode;
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char buffer[BUFSIZ];
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memset (buf, 0, sizeof (glibtop_proc_map));
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sprintf(buffer, "/proc/%d/map", (int)pid);
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if((fd = open(buffer, O_RDONLY)) < 0)
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{
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if(errno != EPERM && errno != EACCES)
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glibtop_warn_io_r(server, "open (%s)", buffer);
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return;
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}
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if(fstat(fd, &inode) < 0)
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{
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if(errno != EOVERFLOW)
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glibtop_warn_io_r(server, "fstat (%s)", buffer);
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/* else call daemon for 64-bit support */
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close(fd);
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return;
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}
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maps = alloca(inode.st_size);
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nmaps = inode.st_size / sizeof(prmap_t);
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if(pread(fd, maps, inode.st_size, 0) != inode.st_size)
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{
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glibtop_warn_io_r(server, "pread (%s)", buffer);
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close(fd);
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return;
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}
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close(fd);
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if(!(entry = glibtop_malloc_r(server, nmaps * sizeof(glibtop_map_entry))))
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return;
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buf->number = nmaps;
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buf->size = sizeof(glibtop_map_entry);
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buf->total = nmaps * sizeof(glibtop_map_entry);
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memset(entry, 0, nmaps * sizeof(glibtop_map_entry));
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for(i = 0; i < nmaps; ++i)
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{
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entry[i].start = maps[i].pr_vaddr;
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entry[i].end = maps[i].pr_vaddr + maps[i].pr_size;
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entry[i].offset = maps[i].pr_offset;
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if(maps[i].pr_mflags & MA_READ)
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entry[i].perm |= GLIBTOP_MAP_PERM_READ;
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if(maps[i].pr_mflags & MA_WRITE)
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entry[i].perm |= GLIBTOP_MAP_PERM_WRITE;
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if(maps[i].pr_mflags & MA_EXEC)
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entry[i].perm |= GLIBTOP_MAP_PERM_EXECUTE;
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if(maps[i].pr_mflags & MA_SHARED)
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entry[i].perm |= GLIBTOP_MAP_PERM_SHARED;
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else
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entry[i].perm |= GLIBTOP_MAP_PERM_PRIVATE;
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entry[i].flags = _glibtop_sysdeps_map_entry;
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}
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buf->flags = _glibtop_sysdeps_proc_map;
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return entry;
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}
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