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markom |
/* Machine independent support for SVR4 /proc (process file system) for GDB.
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Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
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Written by Michael Snyder at Cygnus Solutions.
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Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
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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 2 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, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*
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* Pretty-print trace of api calls to the /proc api
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* (ioctl or read/write calls).
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*
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*/
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#include "defs.h"
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#include "gdbcmd.h"
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#include "completer.h"
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#if defined (NEW_PROC_API)
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#define _STRUCTURED_PROC 1
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/procfs.h>
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#include <sys/proc.h> /* for struct proc */
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#ifdef HAVE_SYS_USER_H
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#include <sys/user.h> /* for struct user */
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#endif
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#include <fcntl.h> /* for O_RDWR etc. */
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#include <sys/wait.h>
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#include "proc-utils.h"
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/* Much of the information used in the /proc interface, particularly for
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printing status information, is kept as tables of structures of the
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following form. These tables can be used to map numeric values to
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their symbolic names and to a string that describes their specific use. */
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struct trans {
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long value; /* The numeric value */
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char *name; /* The equivalent symbolic value */
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char *desc; /* Short description of value */
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};
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static int procfs_trace = 0;
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static FILE *procfs_file = NULL;
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static char *procfs_filename = "procfs_trace";
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static void
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prepare_to_trace (void)
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{
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if (procfs_trace) /* if procfs tracing turned on */
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if (procfs_file == NULL) /* if output file not yet open */
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if (procfs_filename != NULL) /* if output filename known */
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procfs_file = fopen (procfs_filename, "a"); /* open output file */
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}
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static void
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set_procfs_trace_cmd (char *args, int from_tty, struct cmd_list_element *c)
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{
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#if 0 /* not sure what I might actually need to do here, if anything */
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if (procfs_file)
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fflush (procfs_file);
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#endif
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}
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static void
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set_procfs_file_cmd (char *args, int from_tty, struct cmd_list_element *c)
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{
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/* Just changed the filename for procfs tracing.
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If a file was already open, close it. */
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if (procfs_file)
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fclose (procfs_file);
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procfs_file = NULL;
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}
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#ifndef NEW_PROC_API
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static struct trans ioctl_table[] = {
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#ifdef PIOCACINFO /* irix */
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{ PIOCACINFO, "PIOCACINFO", "get process account info" },
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#endif
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{ PIOCACTION, "PIOCACTION", "get signal action structs" },
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#ifdef PIOCARGUMENTS /* osf */
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{ PIOCARGUMENTS, "PIOCARGUMENTS", "command line args" },
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#endif
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#ifdef PIOCAUXV /* solaris aux vectors */
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{ PIOCAUXV, "PIOCAUXV", "get aux vector" },
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{ PIOCNAUXV, "PIOCNAUXV", "get number of aux vector entries" },
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#endif /* AUXV */
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{ PIOCCFAULT, "PIOCCFAULT", "clear current fault" },
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{ PIOCCRED, "PIOCCRED", "get process credentials" },
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#ifdef PIOCENEVCTRS /* irix event counters */
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{ PIOCENEVCTRS, "PIOCENEVCTRS", "acquire and start event counters" },
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{ PIOCGETEVCTRL, "PIOCGETEVCTRL", "get control info of event counters" },
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{ PIOCGETEVCTRS, "PIOCGETEVCTRS", "dump event counters" },
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{ PIOCGETPREVCTRS, "PIOCGETPREVCTRS", "dump event counters & prusage info" },
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{ PIOCRELEVCTRS, "PIOCRELEVCTRS", "release/stop event counters" },
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{ PIOCSETEVCTRL, "PIOCSETEVCTRL", "set control info of event counters" },
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{ PIOCGETPTIMER, "PIOCGETPTIMER", "get process timers" },
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#endif /* irix event counters */
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{ PIOCGENTRY, "PIOCGENTRY", "get traced syscall entry set" },
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#if defined (PIOCGETPR)
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{ PIOCGETPR, "PIOCGETPR", "read struct proc" },
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#endif
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#if defined (PIOCGETU)
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{ PIOCGETU, "PIOCGETU", "read user area" },
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#endif
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#if defined (PIOCGETUTK) && (defined(KERNEL) || defined(SHOW_UTT)) /* osf */
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{ PIOCGETUTK, "PIOCGETUTK", "get the utask struct" },
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#endif
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{ PIOCGEXIT, "PIOCGEXIT", "get traced syscall exit set" },
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{ PIOCGFAULT, "PIOCGFAULT", "get traced fault set" },
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#ifdef PIOCGFPCR /* osf */
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{ PIOCGFPCR, "PIOCGFPCR", "get FP control register" },
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{ PIOCSFPCR, "PIOCSFPCR", "set FP conrtol register" },
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#endif
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{ PIOCGFPREG, "PIOCGFPREG", "get floating point registers" },
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{ PIOCGHOLD, "PIOCGHOLD", "get held signal set" },
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{ PIOCGREG, "PIOCGREG", "get general registers" },
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{ PIOCGROUPS, "PIOCGROUPS", "get supplementary groups" },
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#ifdef PIOCGSPCACT /* osf */
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{ PIOCGSPCACT, "PIOCGSPCACT", "get special action" },
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{ PIOCSSPCACT, "PIOCSSPCACT", "set special action" },
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#endif
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{ PIOCGTRACE, "PIOCGTRACE", "get traced signal set" },
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#ifdef PIOCGWATCH /* irix watchpoints */
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{ PIOCGWATCH, "PIOCGWATCH", "get watchpoint" },
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{ PIOCSWATCH, "PIOCSWATCH", "set watchpoint" },
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{ PIOCNWATCH, "PIOCNWATCH", "get number of watchpoints" },
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#endif /* irix watchpoints */
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#ifdef PIOCGWIN /* solaris sparc */
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{ PIOCGWIN, "PIOCGWIN", "get gwindows_t" },
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#endif
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#ifdef PIOCGXREG /* solaris sparc extra regs */
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{ PIOCGXREGSIZE, "PIOCXREGSIZE", "get extra register state size" },
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{ PIOCGXREG, "PIOCGXREG", "get extra register state" },
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{ PIOCSXREG, "PIOCSXREG", "set extra register state" },
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#endif /* XREG */
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{ PIOCKILL, "PIOCKILL", "send signal" },
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#ifdef PIOCLDT /* solaris i386 */
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{ PIOCLDT, "PIOCLDT", "get LDT" },
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{ PIOCNLDT, "PIOCNLDT", "get number of LDT entries" },
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#endif
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#ifdef PIOCLSTATUS /* solaris and unixware */
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{ PIOCLSTATUS, "PIOCLSTATUS", "get status of all lwps" },
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{ PIOCLUSAGE, "PIOCLUSAGE", "get resource usage of all lwps" },
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{ PIOCOPENLWP, "PIOCOPENLWP", "get lwp file descriptor" },
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{ PIOCLWPIDS, "PIOCLWPIDS", "get lwp identifiers" },
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#endif /* LWP */
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{ PIOCMAP, "PIOCMAP", "get memory map information" },
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{ PIOCMAXSIG, "PIOCMAXSIG", "get max signal number" },
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{ PIOCNICE, "PIOCNICE", "set nice priority" },
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{ PIOCNMAP, "PIOCNMAP", "get number of memory mappings" },
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{ PIOCOPENM, "PIOCOPENM", "open mapped object for reading" },
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#ifdef PIOCOPENMOBS /* osf */
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{ PIOCOPENMOBS, "PIOCOPENMOBS", "open mapped object" },
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#endif
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#ifdef PIOCOPENPD /* solaris */
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{ PIOCOPENPD, "PIOCOPENPD", "get page data file descriptor" },
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#endif
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{ PIOCPSINFO, "PIOCPSINFO", "get ps(1) information" },
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{ PIOCRESET, "PIOCRESET", "reset process flags" },
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{ PIOCRFORK, "PIOCRFORK", "reset inherit-on-fork flag" },
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{ PIOCRRLC, "PIOCRRLC", "reset run-on-last-close flag" },
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{ PIOCRUN, "PIOCRUN", "make process runnable" },
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#ifdef PIOCSAVECCNTRS /* irix */
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{ PIOCSAVECCNTRS, "PIOCSAVECCNTRS", "parent gets child cntrs" },
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#endif
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{ PIOCSENTRY, "PIOCSENTRY", "set traced syscall entry set" },
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{ PIOCSET, "PIOCSET", "set process flags" },
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{ PIOCSEXIT, "PIOCSEXIT", "set traced syscall exit set" },
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{ PIOCSFAULT, "PIOCSFAULT", "set traced fault set" },
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{ PIOCSFORK, "PIOCSFORK", "set inherit-on-fork flag" },
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{ PIOCSFPREG, "PIOCSFPREG", "set floating point registers" },
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{ PIOCSHOLD, "PIOCSHOLD", "set held signal set" },
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{ PIOCSREG, "PIOCSREG", "set general registers" },
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{ PIOCSRLC, "PIOCSRLC", "set run-on-last-close flag" },
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{ PIOCSSIG, "PIOCSSIG", "set current signal" },
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{ PIOCSTATUS, "PIOCSTATUS", "get process status" },
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{ PIOCSTOP, "PIOCSTOP", "post stop request" },
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{ PIOCSTRACE, "PIOCSTRACE", "set traced signal set" },
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{ PIOCUNKILL, "PIOCUNKILL", "delete a signal" },
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#ifdef PIOCUSAGE /* solaris */
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{ PIOCUSAGE, "PIOCUSAGE", "get resource usage" },
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#endif
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{ PIOCWSTOP, "PIOCWSTOP", "wait for process to stop" },
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#ifdef PIOCNTHR /* osf threads */
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{ PIOCNTHR, "PIOCNTHR", "get thread count" },
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{ PIOCRTINH, "PIOCRTINH", "reset inherit-on-thread-creation" },
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{ PIOCSTINH, "PIOCSTINH", "set inherit-on-thread-creation" },
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{ PIOCTLIST, "PIOCTLIST", "get thread ids" },
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{ PIOCXPTH, "PIOCXPTH", "translate port to thread handle" },
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{ PIOCTRUN, "PIOCTRUN", "make thread runnable" },
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{ PIOCTSTATUS, "PIOCTSTATUS", "get thread status" },
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{ PIOCTSTOP, "PIOCTSTOP", "stop a thread" },
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/* ... TGTRACE TSTRACE TSSIG TKILL TUNKILL TCFAULT TGFAULT TSFAULT
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TGFPREG TSFPREG TGREG TSREG TACTION TTERM TABRUN TGENTRY TSENTRY
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TGEXIT TSEXIT TSHOLD ... thread functions */
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#endif /* osf threads */
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{ -1, NULL, NULL }
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};
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int
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ioctl_with_trace (int fd, long opcode, void *ptr, char *file, int line)
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{
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int i = 0;
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int ret;
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int arg1;
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prepare_to_trace ();
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if (procfs_trace)
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{
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for (i = 0; ioctl_table[i].name != NULL; i++)
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if (ioctl_table[i].value == opcode)
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break;
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if (info_verbose)
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fprintf (procfs_file ? procfs_file : stdout,
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"%s:%d -- ", file, line);
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switch (opcode) {
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case PIOCSET:
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arg1 = ptr ? *(long *) ptr : 0;
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCSET, %s) %s\n",
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arg1 == PR_FORK ? "PR_FORK" :
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arg1 == PR_RLC ? "PR_RLC" :
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#ifdef PR_ASYNC
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arg1 == PR_ASYNC ? "PR_ASYNC" :
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#endif
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"<unknown flag>",
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info_verbose ? ioctl_table[i].desc : "");
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break;
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case PIOCRESET:
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arg1 = ptr ? *(long *) ptr : 0;
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCRESET, %s) %s\n",
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arg1 == PR_FORK ? "PR_FORK" :
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arg1 == PR_RLC ? "PR_RLC" :
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#ifdef PR_ASYNC
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arg1 == PR_ASYNC ? "PR_ASYNC" :
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#endif
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"<unknown flag>",
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info_verbose ? ioctl_table[i].desc : "");
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break;
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case PIOCSTRACE:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCSTRACE) ");
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proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
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(sigset_t *) ptr, 0);
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break;
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case PIOCSFAULT:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (%s) ",
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opcode == PIOCSFAULT ? "PIOCSFAULT" : "PIOCGFAULT");
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proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
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(fltset_t *) ptr, 0);
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break;
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case PIOCSENTRY:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (%s) ",
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opcode == PIOCSENTRY ? "PIOCSENTRY" : "PIOCGENTRY");
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proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
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(sysset_t *) ptr, 0);
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break;
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case PIOCSEXIT:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (%s) ",
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opcode == PIOCSEXIT ? "PIOCSEXIT" : "PIOCGEXIT");
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proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
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(sysset_t *) ptr, 0);
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break;
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case PIOCSHOLD:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (%s) ",
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opcode == PIOCSHOLD ? "PIOCSHOLD" : "PIOCGHOLD");
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proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
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(sigset_t *) ptr, 0);
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break;
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297 |
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case PIOCSSIG:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCSSIG) ");
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proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
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ptr ? ((siginfo_t *) ptr)->si_signo : 0,
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0);
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fprintf (procfs_file ? procfs_file : stdout, "\n");
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break;
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305 |
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case PIOCRUN:
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306 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
307 |
|
|
"ioctl (PIOCRUN) ");
|
308 |
|
|
|
309 |
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
310 |
|
|
if (arg1 & PRCSIG)
|
311 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
|
312 |
|
|
if (arg1 & PRCFAULT)
|
313 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
|
314 |
|
|
if (arg1 & PRSTRACE)
|
315 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setTrace ");
|
316 |
|
|
if (arg1 & PRSHOLD)
|
317 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setHold ");
|
318 |
|
|
if (arg1 & PRSFAULT)
|
319 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setFlt ");
|
320 |
|
|
if (arg1 & PRSVADDR)
|
321 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setVaddr ");
|
322 |
|
|
if (arg1 & PRSTEP)
|
323 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "step ");
|
324 |
|
|
if (arg1 & PRSABORT)
|
325 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
|
326 |
|
|
if (arg1 & PRSTOP)
|
327 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
|
328 |
|
|
|
329 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
330 |
|
|
break;
|
331 |
|
|
case PIOCKILL:
|
332 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
333 |
|
|
"ioctl (PIOCKILL) ");
|
334 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
335 |
|
|
ptr ? *(long *) ptr : 0, 0);
|
336 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
337 |
|
|
break;
|
338 |
|
|
#ifdef PIOCSSPCACT
|
339 |
|
|
case PIOCSSPCACT:
|
340 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
341 |
|
|
"ioctl (PIOCSSPCACT) ");
|
342 |
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
343 |
|
|
if (arg1 & PRFS_STOPFORK)
|
344 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopFork ");
|
345 |
|
|
if (arg1 & PRFS_STOPEXEC)
|
346 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopExec ");
|
347 |
|
|
if (arg1 & PRFS_STOPTERM)
|
348 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopTerm ");
|
349 |
|
|
if (arg1 & PRFS_STOPTCR)
|
350 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopThreadCreate ");
|
351 |
|
|
if (arg1 & PRFS_STOPTTERM)
|
352 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopThreadTerm ");
|
353 |
|
|
if (arg1 & PRFS_KOLC)
|
354 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "killOnLastClose ");
|
355 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
356 |
|
|
break;
|
357 |
|
|
#endif /* PIOCSSPCACT */
|
358 |
|
|
default:
|
359 |
|
|
if (ioctl_table[i].name)
|
360 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
361 |
|
|
"ioctl (%s) %s\n",
|
362 |
|
|
ioctl_table[i].name,
|
363 |
|
|
info_verbose ? ioctl_table[i].desc : "");
|
364 |
|
|
else
|
365 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
366 |
|
|
"ioctl (<unknown %ld (0x%lx)) \n", opcode, opcode);
|
367 |
|
|
break;
|
368 |
|
|
}
|
369 |
|
|
if (procfs_file)
|
370 |
|
|
fflush (procfs_file);
|
371 |
|
|
}
|
372 |
|
|
errno = 0;
|
373 |
|
|
ret = ioctl (fd, opcode, ptr);
|
374 |
|
|
if (procfs_trace && ret < 0)
|
375 |
|
|
{
|
376 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
377 |
|
|
"[ioctl (%s) FAILED! (%s)]\n",
|
378 |
|
|
ioctl_table[i].name != NULL ?
|
379 |
|
|
ioctl_table[i].name : "<unknown>",
|
380 |
|
|
safe_strerror (errno));
|
381 |
|
|
if (procfs_file)
|
382 |
|
|
fflush (procfs_file);
|
383 |
|
|
}
|
384 |
|
|
|
385 |
|
|
return ret;
|
386 |
|
|
}
|
387 |
|
|
|
388 |
|
|
#else /* NEW_PROC_API */
|
389 |
|
|
|
390 |
|
|
static struct trans rw_table[] = {
|
391 |
|
|
#ifdef PCAGENT /* solaris */
|
392 |
|
|
{ PCAGENT, "PCAGENT", "create agent lwp with regs from argument" },
|
393 |
|
|
#endif
|
394 |
|
|
{ PCCFAULT, "PCCFAULT", "clear current fault" },
|
395 |
|
|
#ifdef PCCSIG /* solaris */
|
396 |
|
|
{ PCCSIG, "PCCSIG", "clear current signal" },
|
397 |
|
|
#endif
|
398 |
|
|
{ PCDSTOP, "PCDSTOP", "post stop request" },
|
399 |
|
|
{ PCKILL, "PCKILL", "post a signal" },
|
400 |
|
|
{ PCNICE, "PCNICE", "set nice priority" },
|
401 |
|
|
#ifdef PCREAD /* solaris */
|
402 |
|
|
{ PCREAD, "PCREAD", "read from the address space" },
|
403 |
|
|
{ PCWRITE, "PCWRITE", "write to the address space" },
|
404 |
|
|
#endif
|
405 |
|
|
#ifdef PCRESET /* unixware */
|
406 |
|
|
{ PCRESET, "PCRESET", "unset modes" },
|
407 |
|
|
#endif
|
408 |
|
|
{ PCRUN, "PCRUN", "make process/lwp runnable" },
|
409 |
|
|
#ifdef PCSASRS /* solaris 2.7 only */
|
410 |
|
|
{ PCSASRS, "PCSASRS", "set ancillary state registers" },
|
411 |
|
|
#endif
|
412 |
|
|
#ifdef PCSCRED /* solaris */
|
413 |
|
|
{ PCSCRED, "PCSCRED", "set process credentials" },
|
414 |
|
|
#endif
|
415 |
|
|
{ PCSENTRY, "PCSENTRY", "set traced syscall entry set" },
|
416 |
|
|
{ PCSET, "PCSET", "set modes" },
|
417 |
|
|
{ PCSEXIT, "PCSEXIT", "set traced syscall exit set" },
|
418 |
|
|
{ PCSFAULT, "PCSFAULT", "set traced fault set" },
|
419 |
|
|
{ PCSFPREG, "PCSFPREG", "set floating point registers" },
|
420 |
|
|
{ PCSHOLD, "PCSHOLD", "set signal mask" },
|
421 |
|
|
{ PCSREG, "PCSREG", "set general registers" },
|
422 |
|
|
{ PCSSIG, "PCSSIG", "set current signal" },
|
423 |
|
|
{ PCSTOP, "PCSTOP", "post stop request and wait" },
|
424 |
|
|
{ PCSTRACE, "PCSTRACE", "set traced signal set" },
|
425 |
|
|
#ifdef PCSVADDR /* solaris */
|
426 |
|
|
{ PCSVADDR, "PCSVADDR", "set pc virtual address" },
|
427 |
|
|
#endif
|
428 |
|
|
#ifdef PCSXREG /* solaris sparc only */
|
429 |
|
|
{ PCSXREG, "PCSXREG", "set extra registers" },
|
430 |
|
|
#endif
|
431 |
|
|
#ifdef PCTWSTOP /* solaris */
|
432 |
|
|
{ PCTWSTOP, "PCTWSTOP", "wait for stop, with timeout arg" },
|
433 |
|
|
#endif
|
434 |
|
|
{ PCUNKILL, "PCUNKILL", "delete a pending signal" },
|
435 |
|
|
#ifdef PCUNSET /* solaris */
|
436 |
|
|
{ PCUNSET, "PCUNSET", "unset modes" },
|
437 |
|
|
#endif
|
438 |
|
|
#ifdef PCWATCH /* solaris */
|
439 |
|
|
{ PCWATCH, "PCWATCH", "set/unset watched memory area" },
|
440 |
|
|
#endif
|
441 |
|
|
{ PCWSTOP, "PCWSTOP", "wait for process/lwp to stop, no timeout" },
|
442 |
|
|
{ 0, NULL, NULL }
|
443 |
|
|
};
|
444 |
|
|
|
445 |
|
|
static off_t lseek_offset;
|
446 |
|
|
|
447 |
|
|
int
|
448 |
|
|
write_with_trace (int fd, void *varg, size_t len, char *file, int line)
|
449 |
|
|
{
|
450 |
|
|
int i;
|
451 |
|
|
int ret;
|
452 |
|
|
procfs_ctl_t *arg = (procfs_ctl_t *) varg;
|
453 |
|
|
|
454 |
|
|
prepare_to_trace ();
|
455 |
|
|
if (procfs_trace)
|
456 |
|
|
{
|
457 |
|
|
procfs_ctl_t opcode = arg[0];
|
458 |
|
|
for (i = 0; rw_table[i].name != NULL; i++)
|
459 |
|
|
if (rw_table[i].value == opcode)
|
460 |
|
|
break;
|
461 |
|
|
|
462 |
|
|
if (info_verbose)
|
463 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
464 |
|
|
"%s:%d -- ", file, line);
|
465 |
|
|
switch (opcode) {
|
466 |
|
|
case PCSET:
|
467 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
468 |
|
|
"write (PCSET, %s) %s\n",
|
469 |
|
|
arg[1] == PR_FORK ? "PR_FORK" :
|
470 |
|
|
arg[1] == PR_RLC ? "PR_RLC" :
|
471 |
|
|
#ifdef PR_ASYNC
|
472 |
|
|
arg[1] == PR_ASYNC ? "PR_ASYNC" :
|
473 |
|
|
#endif
|
474 |
|
|
"<unknown flag>",
|
475 |
|
|
info_verbose ? rw_table[i].desc : "");
|
476 |
|
|
break;
|
477 |
|
|
#ifdef PCUNSET
|
478 |
|
|
case PCUNSET:
|
479 |
|
|
#endif
|
480 |
|
|
#ifdef PCRESET
|
481 |
|
|
#if PCRESET != PCUNSET
|
482 |
|
|
case PCRESET:
|
483 |
|
|
#endif
|
484 |
|
|
#endif
|
485 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
486 |
|
|
"write (PCRESET, %s) %s\n",
|
487 |
|
|
arg[1] == PR_FORK ? "PR_FORK" :
|
488 |
|
|
arg[1] == PR_RLC ? "PR_RLC" :
|
489 |
|
|
#ifdef PR_ASYNC
|
490 |
|
|
arg[1] == PR_ASYNC ? "PR_ASYNC" :
|
491 |
|
|
#endif
|
492 |
|
|
"<unknown flag>",
|
493 |
|
|
info_verbose ? rw_table[i].desc : "");
|
494 |
|
|
break;
|
495 |
|
|
case PCSTRACE:
|
496 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
497 |
|
|
"write (PCSTRACE) ");
|
498 |
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
499 |
|
|
(sigset_t *) &arg[1], 0);
|
500 |
|
|
break;
|
501 |
|
|
case PCSFAULT:
|
502 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
503 |
|
|
"write (PCSFAULT) ");
|
504 |
|
|
proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
|
505 |
|
|
(fltset_t *) &arg[1], 0);
|
506 |
|
|
break;
|
507 |
|
|
case PCSENTRY:
|
508 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
509 |
|
|
"write (PCSENTRY) ");
|
510 |
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
511 |
|
|
(sysset_t *) &arg[1], 0);
|
512 |
|
|
break;
|
513 |
|
|
case PCSEXIT:
|
514 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
515 |
|
|
"write (PCSEXIT) ");
|
516 |
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
517 |
|
|
(sysset_t *) &arg[1], 0);
|
518 |
|
|
break;
|
519 |
|
|
case PCSHOLD:
|
520 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
521 |
|
|
"write (PCSHOLD) ");
|
522 |
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
523 |
|
|
(sigset_t *) &arg[1], 0);
|
524 |
|
|
break;
|
525 |
|
|
case PCSSIG:
|
526 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
527 |
|
|
"write (PCSSIG) ");
|
528 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
529 |
|
|
arg[1] ? ((siginfo_t *) &arg[1])->si_signo
|
530 |
|
|
: 0,
|
531 |
|
|
0);
|
532 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
533 |
|
|
break;
|
534 |
|
|
case PCRUN:
|
535 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
536 |
|
|
"write (PCRUN) ");
|
537 |
|
|
if (arg[1] & PRCSIG)
|
538 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
|
539 |
|
|
if (arg[1] & PRCFAULT)
|
540 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
|
541 |
|
|
if (arg[1] & PRSTEP)
|
542 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "step ");
|
543 |
|
|
if (arg[1] & PRSABORT)
|
544 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
|
545 |
|
|
if (arg[1] & PRSTOP)
|
546 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
|
547 |
|
|
|
548 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
549 |
|
|
break;
|
550 |
|
|
case PCKILL:
|
551 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
552 |
|
|
"write (PCKILL) ");
|
553 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
554 |
|
|
arg[1], 0);
|
555 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
556 |
|
|
break;
|
557 |
|
|
default:
|
558 |
|
|
{
|
559 |
|
|
#ifdef BREAKPOINT
|
560 |
|
|
static unsigned char break_insn[] = BREAKPOINT;
|
561 |
|
|
|
562 |
|
|
if (len == sizeof (break_insn) &&
|
563 |
|
|
memcmp (arg, &break_insn, len) == 0)
|
564 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
565 |
|
|
"write (<breakpoint at 0x%08lx>) \n",
|
566 |
|
|
(unsigned long) lseek_offset);
|
567 |
|
|
else
|
568 |
|
|
#endif
|
569 |
|
|
if (rw_table[i].name)
|
570 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
571 |
|
|
"write (%s) %s\n",
|
572 |
|
|
rw_table[i].name,
|
573 |
|
|
info_verbose ? rw_table[i].desc : "");
|
574 |
|
|
else
|
575 |
|
|
{
|
576 |
|
|
if (lseek_offset != -1)
|
577 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
578 |
|
|
"write (<unknown>, %lud bytes at 0x%08lx) \n",
|
579 |
|
|
(unsigned long) len, (unsigned long) lseek_offset);
|
580 |
|
|
else
|
581 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
582 |
|
|
"write (<unknown>, %lud bytes) \n",
|
583 |
|
|
(unsigned long) len);
|
584 |
|
|
}
|
585 |
|
|
break;
|
586 |
|
|
}
|
587 |
|
|
}
|
588 |
|
|
if (procfs_file)
|
589 |
|
|
fflush (procfs_file);
|
590 |
|
|
}
|
591 |
|
|
errno = 0;
|
592 |
|
|
ret = write (fd, (void *) arg, len);
|
593 |
|
|
if (procfs_trace && ret != len)
|
594 |
|
|
{
|
595 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
596 |
|
|
"[write (%s) FAILED! (%s)]\n",
|
597 |
|
|
rw_table[i].name != NULL ?
|
598 |
|
|
rw_table[i].name : "<unknown>",
|
599 |
|
|
safe_strerror (errno));
|
600 |
|
|
if (procfs_file)
|
601 |
|
|
fflush (procfs_file);
|
602 |
|
|
}
|
603 |
|
|
|
604 |
|
|
lseek_offset = -1;
|
605 |
|
|
return ret;
|
606 |
|
|
}
|
607 |
|
|
|
608 |
|
|
off_t
|
609 |
|
|
lseek_with_trace (int fd, off_t offset, int whence, char *file, int line)
|
610 |
|
|
{
|
611 |
|
|
off_t ret;
|
612 |
|
|
|
613 |
|
|
prepare_to_trace ();
|
614 |
|
|
errno = 0;
|
615 |
|
|
ret = lseek (fd, offset, whence);
|
616 |
|
|
lseek_offset = ret;
|
617 |
|
|
if (procfs_trace && (ret == -1 || errno != 0))
|
618 |
|
|
{
|
619 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
620 |
|
|
"[lseek (0x%08lx) FAILED! (%s)]\n",
|
621 |
|
|
(unsigned long) offset, safe_strerror (errno));
|
622 |
|
|
if (procfs_file)
|
623 |
|
|
fflush (procfs_file);
|
624 |
|
|
}
|
625 |
|
|
|
626 |
|
|
return ret;
|
627 |
|
|
}
|
628 |
|
|
|
629 |
|
|
#endif /* NEW_PROC_API */
|
630 |
|
|
|
631 |
|
|
int
|
632 |
|
|
open_with_trace (char *filename, int mode, char *file, int line)
|
633 |
|
|
{
|
634 |
|
|
int ret;
|
635 |
|
|
|
636 |
|
|
prepare_to_trace ();
|
637 |
|
|
errno = 0;
|
638 |
|
|
ret = open (filename, mode);
|
639 |
|
|
if (procfs_trace)
|
640 |
|
|
{
|
641 |
|
|
if (info_verbose)
|
642 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
643 |
|
|
"%s:%d -- ", file, line);
|
644 |
|
|
|
645 |
|
|
if (errno)
|
646 |
|
|
{
|
647 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
648 |
|
|
"[open FAILED! (%s) line %d]\\n",
|
649 |
|
|
safe_strerror (errno), line);
|
650 |
|
|
}
|
651 |
|
|
else
|
652 |
|
|
{
|
653 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
654 |
|
|
"%d = open (%s, ", ret, filename);
|
655 |
|
|
if (mode == O_RDONLY)
|
656 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_RDONLY) %d\n",
|
657 |
|
|
line);
|
658 |
|
|
else if (mode == O_WRONLY)
|
659 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_WRONLY) %d\n",
|
660 |
|
|
line);
|
661 |
|
|
else if (mode == O_RDWR)
|
662 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_RDWR) %d\n",
|
663 |
|
|
line);
|
664 |
|
|
}
|
665 |
|
|
if (procfs_file)
|
666 |
|
|
fflush (procfs_file);
|
667 |
|
|
}
|
668 |
|
|
|
669 |
|
|
return ret;
|
670 |
|
|
}
|
671 |
|
|
|
672 |
|
|
int
|
673 |
|
|
close_with_trace (int fd, char *file, int line)
|
674 |
|
|
{
|
675 |
|
|
int ret;
|
676 |
|
|
|
677 |
|
|
prepare_to_trace ();
|
678 |
|
|
errno = 0;
|
679 |
|
|
ret = close (fd);
|
680 |
|
|
if (procfs_trace)
|
681 |
|
|
{
|
682 |
|
|
if (info_verbose)
|
683 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
684 |
|
|
"%s:%d -- ", file, line);
|
685 |
|
|
if (errno)
|
686 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
687 |
|
|
"[close FAILED! (%s)]\n", safe_strerror (errno));
|
688 |
|
|
else
|
689 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
690 |
|
|
"%d = close (%d)\n", ret, fd);
|
691 |
|
|
if (procfs_file)
|
692 |
|
|
fflush (procfs_file);
|
693 |
|
|
}
|
694 |
|
|
|
695 |
|
|
return ret;
|
696 |
|
|
}
|
697 |
|
|
|
698 |
|
|
pid_t
|
699 |
|
|
wait_with_trace (int *wstat, char *file, int line)
|
700 |
|
|
{
|
701 |
|
|
int ret, lstat = 0;
|
702 |
|
|
|
703 |
|
|
prepare_to_trace ();
|
704 |
|
|
if (procfs_trace)
|
705 |
|
|
{
|
706 |
|
|
if (info_verbose)
|
707 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
708 |
|
|
"%s:%d -- ", file, line);
|
709 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
710 |
|
|
"wait (line %d) ", line);
|
711 |
|
|
if (procfs_file)
|
712 |
|
|
fflush (procfs_file);
|
713 |
|
|
}
|
714 |
|
|
errno = 0;
|
715 |
|
|
ret = wait (&lstat);
|
716 |
|
|
if (procfs_trace)
|
717 |
|
|
{
|
718 |
|
|
if (errno)
|
719 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
720 |
|
|
"[wait FAILED! (%s)]\n", safe_strerror (errno));
|
721 |
|
|
else
|
722 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
723 |
|
|
"returned pid %d, status 0x%x\n", ret, lstat);
|
724 |
|
|
if (procfs_file)
|
725 |
|
|
fflush (procfs_file);
|
726 |
|
|
}
|
727 |
|
|
if (wstat)
|
728 |
|
|
*wstat = lstat;
|
729 |
|
|
|
730 |
|
|
return ret;
|
731 |
|
|
}
|
732 |
|
|
|
733 |
|
|
void
|
734 |
|
|
procfs_note (char *msg, char *file, int line)
|
735 |
|
|
{
|
736 |
|
|
prepare_to_trace ();
|
737 |
|
|
if (procfs_trace)
|
738 |
|
|
{
|
739 |
|
|
if (info_verbose)
|
740 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
741 |
|
|
"%s:%d -- ", file, line);
|
742 |
|
|
fprintf (procfs_file ? procfs_file : stdout, msg);
|
743 |
|
|
if (procfs_file)
|
744 |
|
|
fflush (procfs_file);
|
745 |
|
|
}
|
746 |
|
|
}
|
747 |
|
|
|
748 |
|
|
void
|
749 |
|
|
proc_prettyfprint_status (long flags, int why, int what, int thread)
|
750 |
|
|
{
|
751 |
|
|
prepare_to_trace ();
|
752 |
|
|
if (procfs_trace)
|
753 |
|
|
{
|
754 |
|
|
if (thread)
|
755 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
756 |
|
|
"Thread %d: ", thread);
|
757 |
|
|
|
758 |
|
|
proc_prettyfprint_flags (procfs_file ? procfs_file : stdout,
|
759 |
|
|
flags, 0);
|
760 |
|
|
|
761 |
|
|
if (flags & (PR_STOPPED | PR_ISTOP))
|
762 |
|
|
proc_prettyfprint_why (procfs_file ? procfs_file : stdout,
|
763 |
|
|
why, what, 0);
|
764 |
|
|
if (procfs_file)
|
765 |
|
|
fflush (procfs_file);
|
766 |
|
|
}
|
767 |
|
|
}
|
768 |
|
|
|
769 |
|
|
|
770 |
|
|
void
|
771 |
|
|
_initialize_proc_api (void)
|
772 |
|
|
{
|
773 |
|
|
struct cmd_list_element *c;
|
774 |
|
|
|
775 |
|
|
c = add_set_cmd ("procfs-trace", no_class,
|
776 |
|
|
var_boolean, (char *) &procfs_trace,
|
777 |
|
|
"Set tracing for /proc api calls.\n", &setlist);
|
778 |
|
|
|
779 |
|
|
add_show_from_set (c, &showlist);
|
780 |
|
|
c->function.sfunc = set_procfs_trace_cmd;
|
781 |
|
|
c->completer = filename_completer;
|
782 |
|
|
|
783 |
|
|
c = add_set_cmd ("procfs-file", no_class, var_filename,
|
784 |
|
|
(char *) &procfs_filename,
|
785 |
|
|
"Set filename for /proc tracefile.\n", &setlist);
|
786 |
|
|
|
787 |
|
|
add_show_from_set (c, &showlist);
|
788 |
|
|
c->function.sfunc = set_procfs_file_cmd;
|
789 |
|
|
}
|