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56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* Linux-specific PROCFS manipulation routines.
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Copyright (C) 2009-2012 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef GDBSERVER
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#include "server.h"
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#else
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#include "defs.h"
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#include "gdb_string.h"
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#endif
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#include "linux-procfs.h"
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/* Return the TGID of LWPID from /proc/pid/status. Returns -1 if not
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found. */
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int
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linux_proc_get_tgid (int lwpid)
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{
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FILE *status_file;
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char buf[100];
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int tgid = -1;
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snprintf (buf, sizeof (buf), "/proc/%d/status", (int) lwpid);
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status_file = fopen (buf, "r");
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if (status_file != NULL)
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{
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while (fgets (buf, sizeof (buf), status_file))
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{
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if (strncmp (buf, "Tgid:", 5) == 0)
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{
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tgid = strtoul (buf + strlen ("Tgid:"), NULL, 10);
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break;
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}
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}
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fclose (status_file);
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}
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return tgid;
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}
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