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jeremybenn |
/* Machine independent support for SVR4 /proc (process file system) for GDB.
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Copyright (C) 1999, 2000, 2001, 2003, 2005, 2007, 2008, 2009, 2010
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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 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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/*
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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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#ifdef HAVE_SYS_PROC_H
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#include <sys/proc.h> /* for struct proc */
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#endif
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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 "gdb_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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| 261 |
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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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| 267 |
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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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| 270 |
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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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| 273 |
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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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| 280 |
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case PIOCSENTRY:
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| 281 |
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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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| 284 |
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proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
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| 285 |
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(sysset_t *) ptr, 0);
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break;
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| 287 |
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case PIOCSEXIT:
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| 288 |
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (%s) ",
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| 290 |
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opcode == PIOCSEXIT ? "PIOCSEXIT" : "PIOCGEXIT");
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| 291 |
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proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
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| 292 |
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(sysset_t *) ptr, 0);
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break;
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| 294 |
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case PIOCSHOLD:
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| 295 |
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fprintf (procfs_file ? procfs_file : stdout,
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| 296 |
|
|
"ioctl (%s) ",
|
| 297 |
|
|
opcode == PIOCSHOLD ? "PIOCSHOLD" : "PIOCGHOLD");
|
| 298 |
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
| 299 |
|
|
(sigset_t *) ptr, 0);
|
| 300 |
|
|
break;
|
| 301 |
|
|
case PIOCSSIG:
|
| 302 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 303 |
|
|
"ioctl (PIOCSSIG) ");
|
| 304 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
| 305 |
|
|
ptr ? ((siginfo_t *) ptr)->si_signo : 0,
|
| 306 |
|
|
0);
|
| 307 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 308 |
|
|
break;
|
| 309 |
|
|
case PIOCRUN:
|
| 310 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 311 |
|
|
"ioctl (PIOCRUN) ");
|
| 312 |
|
|
|
| 313 |
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
| 314 |
|
|
if (arg1 & PRCSIG)
|
| 315 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
|
| 316 |
|
|
if (arg1 & PRCFAULT)
|
| 317 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
|
| 318 |
|
|
if (arg1 & PRSTRACE)
|
| 319 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setTrace ");
|
| 320 |
|
|
if (arg1 & PRSHOLD)
|
| 321 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setHold ");
|
| 322 |
|
|
if (arg1 & PRSFAULT)
|
| 323 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setFlt ");
|
| 324 |
|
|
if (arg1 & PRSVADDR)
|
| 325 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "setVaddr ");
|
| 326 |
|
|
if (arg1 & PRSTEP)
|
| 327 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "step ");
|
| 328 |
|
|
if (arg1 & PRSABORT)
|
| 329 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
|
| 330 |
|
|
if (arg1 & PRSTOP)
|
| 331 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
|
| 332 |
|
|
|
| 333 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 334 |
|
|
break;
|
| 335 |
|
|
case PIOCKILL:
|
| 336 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 337 |
|
|
"ioctl (PIOCKILL) ");
|
| 338 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
| 339 |
|
|
ptr ? *(long *) ptr : 0, 0);
|
| 340 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 341 |
|
|
break;
|
| 342 |
|
|
#ifdef PIOCSSPCACT
|
| 343 |
|
|
case PIOCSSPCACT:
|
| 344 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 345 |
|
|
"ioctl (PIOCSSPCACT) ");
|
| 346 |
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
| 347 |
|
|
if (arg1 & PRFS_STOPFORK)
|
| 348 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopFork ");
|
| 349 |
|
|
if (arg1 & PRFS_STOPEXEC)
|
| 350 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopExec ");
|
| 351 |
|
|
if (arg1 & PRFS_STOPTERM)
|
| 352 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopTerm ");
|
| 353 |
|
|
if (arg1 & PRFS_STOPTCR)
|
| 354 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopThreadCreate ");
|
| 355 |
|
|
if (arg1 & PRFS_STOPTTERM)
|
| 356 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopThreadTerm ");
|
| 357 |
|
|
if (arg1 & PRFS_KOLC)
|
| 358 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "killOnLastClose ");
|
| 359 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 360 |
|
|
break;
|
| 361 |
|
|
#endif /* PIOCSSPCACT */
|
| 362 |
|
|
default:
|
| 363 |
|
|
if (ioctl_table[i].name)
|
| 364 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 365 |
|
|
"ioctl (%s) %s\n",
|
| 366 |
|
|
ioctl_table[i].name,
|
| 367 |
|
|
info_verbose ? ioctl_table[i].desc : "");
|
| 368 |
|
|
else
|
| 369 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 370 |
|
|
"ioctl (<unknown %ld (0x%lx)) \n", opcode, opcode);
|
| 371 |
|
|
break;
|
| 372 |
|
|
}
|
| 373 |
|
|
if (procfs_file)
|
| 374 |
|
|
fflush (procfs_file);
|
| 375 |
|
|
}
|
| 376 |
|
|
errno = 0;
|
| 377 |
|
|
ret = ioctl (fd, opcode, ptr);
|
| 378 |
|
|
if (procfs_trace && ret < 0)
|
| 379 |
|
|
{
|
| 380 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 381 |
|
|
"[ioctl (%s) FAILED! (%s)]\n",
|
| 382 |
|
|
ioctl_table[i].name != NULL ?
|
| 383 |
|
|
ioctl_table[i].name : "<unknown>",
|
| 384 |
|
|
safe_strerror (errno));
|
| 385 |
|
|
if (procfs_file)
|
| 386 |
|
|
fflush (procfs_file);
|
| 387 |
|
|
}
|
| 388 |
|
|
|
| 389 |
|
|
return ret;
|
| 390 |
|
|
}
|
| 391 |
|
|
|
| 392 |
|
|
#else /* NEW_PROC_API */
|
| 393 |
|
|
|
| 394 |
|
|
static struct trans rw_table[] = {
|
| 395 |
|
|
#ifdef PCAGENT /* solaris */
|
| 396 |
|
|
{ PCAGENT, "PCAGENT", "create agent lwp with regs from argument" },
|
| 397 |
|
|
#endif
|
| 398 |
|
|
{ PCCFAULT, "PCCFAULT", "clear current fault" },
|
| 399 |
|
|
#ifdef PCCSIG /* solaris */
|
| 400 |
|
|
{ PCCSIG, "PCCSIG", "clear current signal" },
|
| 401 |
|
|
#endif
|
| 402 |
|
|
#ifdef PCDSTOP /* solaris */
|
| 403 |
|
|
{ PCDSTOP, "PCDSTOP", "post stop request" },
|
| 404 |
|
|
#endif
|
| 405 |
|
|
{ PCKILL, "PCKILL", "post a signal" },
|
| 406 |
|
|
#ifdef PCNICE /* solaris */
|
| 407 |
|
|
{ PCNICE, "PCNICE", "set nice priority" },
|
| 408 |
|
|
#endif
|
| 409 |
|
|
#ifdef PCREAD /* solaris */
|
| 410 |
|
|
{ PCREAD, "PCREAD", "read from the address space" },
|
| 411 |
|
|
{ PCWRITE, "PCWRITE", "write to the address space" },
|
| 412 |
|
|
#endif
|
| 413 |
|
|
#ifdef PCRESET /* unixware */
|
| 414 |
|
|
{ PCRESET, "PCRESET", "unset modes" },
|
| 415 |
|
|
#endif
|
| 416 |
|
|
{ PCRUN, "PCRUN", "make process/lwp runnable" },
|
| 417 |
|
|
#ifdef PCSASRS /* solaris 2.7 only */
|
| 418 |
|
|
{ PCSASRS, "PCSASRS", "set ancillary state registers" },
|
| 419 |
|
|
#endif
|
| 420 |
|
|
#ifdef PCSCRED /* solaris */
|
| 421 |
|
|
{ PCSCRED, "PCSCRED", "set process credentials" },
|
| 422 |
|
|
#endif
|
| 423 |
|
|
{ PCSENTRY, "PCSENTRY", "set traced syscall entry set" },
|
| 424 |
|
|
{ PCSET, "PCSET", "set modes" },
|
| 425 |
|
|
{ PCSEXIT, "PCSEXIT", "set traced syscall exit set" },
|
| 426 |
|
|
{ PCSFAULT, "PCSFAULT", "set traced fault set" },
|
| 427 |
|
|
{ PCSFPREG, "PCSFPREG", "set floating point registers" },
|
| 428 |
|
|
#ifdef PCSHOLD /* solaris */
|
| 429 |
|
|
{ PCSHOLD, "PCSHOLD", "set signal mask" },
|
| 430 |
|
|
#endif
|
| 431 |
|
|
{ PCSREG, "PCSREG", "set general registers" },
|
| 432 |
|
|
{ PCSSIG, "PCSSIG", "set current signal" },
|
| 433 |
|
|
{ PCSTOP, "PCSTOP", "post stop request and wait" },
|
| 434 |
|
|
{ PCSTRACE, "PCSTRACE", "set traced signal set" },
|
| 435 |
|
|
#ifdef PCSVADDR /* solaris */
|
| 436 |
|
|
{ PCSVADDR, "PCSVADDR", "set pc virtual address" },
|
| 437 |
|
|
#endif
|
| 438 |
|
|
#ifdef PCSXREG /* solaris sparc only */
|
| 439 |
|
|
{ PCSXREG, "PCSXREG", "set extra registers" },
|
| 440 |
|
|
#endif
|
| 441 |
|
|
#ifdef PCTWSTOP /* solaris */
|
| 442 |
|
|
{ PCTWSTOP, "PCTWSTOP", "wait for stop, with timeout arg" },
|
| 443 |
|
|
#endif
|
| 444 |
|
|
#ifdef PCUNKILL /* solaris */
|
| 445 |
|
|
{ PCUNKILL, "PCUNKILL", "delete a pending signal" },
|
| 446 |
|
|
#endif
|
| 447 |
|
|
#ifdef PCUNSET /* solaris */
|
| 448 |
|
|
{ PCUNSET, "PCUNSET", "unset modes" },
|
| 449 |
|
|
#endif
|
| 450 |
|
|
#ifdef PCWATCH /* solaris */
|
| 451 |
|
|
{ PCWATCH, "PCWATCH", "set/unset watched memory area" },
|
| 452 |
|
|
#endif
|
| 453 |
|
|
{ PCWSTOP, "PCWSTOP", "wait for process/lwp to stop, no timeout" },
|
| 454 |
|
|
{ 0, NULL, NULL }
|
| 455 |
|
|
};
|
| 456 |
|
|
|
| 457 |
|
|
static off_t lseek_offset;
|
| 458 |
|
|
|
| 459 |
|
|
int
|
| 460 |
|
|
write_with_trace (int fd, void *varg, size_t len, char *file, int line)
|
| 461 |
|
|
{
|
| 462 |
|
|
int i = ARRAY_SIZE (rw_table) - 1;
|
| 463 |
|
|
int ret;
|
| 464 |
|
|
procfs_ctl_t *arg = (procfs_ctl_t *) varg;
|
| 465 |
|
|
|
| 466 |
|
|
prepare_to_trace ();
|
| 467 |
|
|
if (procfs_trace)
|
| 468 |
|
|
{
|
| 469 |
|
|
procfs_ctl_t opcode = arg[0];
|
| 470 |
|
|
for (i = 0; rw_table[i].name != NULL; i++)
|
| 471 |
|
|
if (rw_table[i].value == opcode)
|
| 472 |
|
|
break;
|
| 473 |
|
|
|
| 474 |
|
|
if (info_verbose)
|
| 475 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 476 |
|
|
"%s:%d -- ", file, line);
|
| 477 |
|
|
switch (opcode) {
|
| 478 |
|
|
case PCSET:
|
| 479 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 480 |
|
|
"write (PCSET, %s) %s\n",
|
| 481 |
|
|
arg[1] == PR_FORK ? "PR_FORK" :
|
| 482 |
|
|
arg[1] == PR_RLC ? "PR_RLC" :
|
| 483 |
|
|
#ifdef PR_ASYNC
|
| 484 |
|
|
arg[1] == PR_ASYNC ? "PR_ASYNC" :
|
| 485 |
|
|
#endif
|
| 486 |
|
|
"<unknown flag>",
|
| 487 |
|
|
info_verbose ? rw_table[i].desc : "");
|
| 488 |
|
|
break;
|
| 489 |
|
|
#ifdef PCUNSET
|
| 490 |
|
|
case PCUNSET:
|
| 491 |
|
|
#endif
|
| 492 |
|
|
#ifdef PCRESET
|
| 493 |
|
|
#if PCRESET != PCUNSET
|
| 494 |
|
|
case PCRESET:
|
| 495 |
|
|
#endif
|
| 496 |
|
|
#endif
|
| 497 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 498 |
|
|
"write (PCRESET, %s) %s\n",
|
| 499 |
|
|
arg[1] == PR_FORK ? "PR_FORK" :
|
| 500 |
|
|
arg[1] == PR_RLC ? "PR_RLC" :
|
| 501 |
|
|
#ifdef PR_ASYNC
|
| 502 |
|
|
arg[1] == PR_ASYNC ? "PR_ASYNC" :
|
| 503 |
|
|
#endif
|
| 504 |
|
|
"<unknown flag>",
|
| 505 |
|
|
info_verbose ? rw_table[i].desc : "");
|
| 506 |
|
|
break;
|
| 507 |
|
|
case PCSTRACE:
|
| 508 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 509 |
|
|
"write (PCSTRACE) ");
|
| 510 |
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
| 511 |
|
|
(sigset_t *) &arg[1], 0);
|
| 512 |
|
|
break;
|
| 513 |
|
|
case PCSFAULT:
|
| 514 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 515 |
|
|
"write (PCSFAULT) ");
|
| 516 |
|
|
proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
|
| 517 |
|
|
(fltset_t *) &arg[1], 0);
|
| 518 |
|
|
break;
|
| 519 |
|
|
case PCSENTRY:
|
| 520 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 521 |
|
|
"write (PCSENTRY) ");
|
| 522 |
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
| 523 |
|
|
(sysset_t *) &arg[1], 0);
|
| 524 |
|
|
break;
|
| 525 |
|
|
case PCSEXIT:
|
| 526 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 527 |
|
|
"write (PCSEXIT) ");
|
| 528 |
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
| 529 |
|
|
(sysset_t *) &arg[1], 0);
|
| 530 |
|
|
break;
|
| 531 |
|
|
#ifdef PCSHOLD
|
| 532 |
|
|
case PCSHOLD:
|
| 533 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 534 |
|
|
"write (PCSHOLD) ");
|
| 535 |
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
| 536 |
|
|
(sigset_t *) &arg[1], 0);
|
| 537 |
|
|
break;
|
| 538 |
|
|
#endif
|
| 539 |
|
|
case PCSSIG:
|
| 540 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 541 |
|
|
"write (PCSSIG) ");
|
| 542 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
| 543 |
|
|
arg[1] ? ((siginfo_t *) &arg[1])->si_signo
|
| 544 |
|
|
: 0,
|
| 545 |
|
|
0);
|
| 546 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 547 |
|
|
break;
|
| 548 |
|
|
case PCRUN:
|
| 549 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 550 |
|
|
"write (PCRUN) ");
|
| 551 |
|
|
if (arg[1] & PRCSIG)
|
| 552 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
|
| 553 |
|
|
if (arg[1] & PRCFAULT)
|
| 554 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
|
| 555 |
|
|
if (arg[1] & PRSTEP)
|
| 556 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "step ");
|
| 557 |
|
|
#ifdef PRSABORT
|
| 558 |
|
|
if (arg[1] & PRSABORT)
|
| 559 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
|
| 560 |
|
|
#endif
|
| 561 |
|
|
#ifdef PRSTOP
|
| 562 |
|
|
if (arg[1] & PRSTOP)
|
| 563 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
|
| 564 |
|
|
#endif
|
| 565 |
|
|
|
| 566 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 567 |
|
|
break;
|
| 568 |
|
|
case PCKILL:
|
| 569 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 570 |
|
|
"write (PCKILL) ");
|
| 571 |
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
| 572 |
|
|
arg[1], 0);
|
| 573 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
| 574 |
|
|
break;
|
| 575 |
|
|
default:
|
| 576 |
|
|
{
|
| 577 |
|
|
if (rw_table[i].name)
|
| 578 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 579 |
|
|
"write (%s) %s\n",
|
| 580 |
|
|
rw_table[i].name,
|
| 581 |
|
|
info_verbose ? rw_table[i].desc : "");
|
| 582 |
|
|
else
|
| 583 |
|
|
{
|
| 584 |
|
|
if (lseek_offset != -1)
|
| 585 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 586 |
|
|
"write (<unknown>, %lud bytes at 0x%08lx) \n",
|
| 587 |
|
|
(unsigned long) len, (unsigned long) lseek_offset);
|
| 588 |
|
|
else
|
| 589 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 590 |
|
|
"write (<unknown>, %lud bytes) \n",
|
| 591 |
|
|
(unsigned long) len);
|
| 592 |
|
|
}
|
| 593 |
|
|
break;
|
| 594 |
|
|
}
|
| 595 |
|
|
}
|
| 596 |
|
|
if (procfs_file)
|
| 597 |
|
|
fflush (procfs_file);
|
| 598 |
|
|
}
|
| 599 |
|
|
errno = 0;
|
| 600 |
|
|
ret = write (fd, (void *) arg, len);
|
| 601 |
|
|
if (procfs_trace && ret != len)
|
| 602 |
|
|
{
|
| 603 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 604 |
|
|
"[write (%s) FAILED! (%s)]\n",
|
| 605 |
|
|
rw_table[i].name != NULL ?
|
| 606 |
|
|
rw_table[i].name : "<unknown>",
|
| 607 |
|
|
safe_strerror (errno));
|
| 608 |
|
|
if (procfs_file)
|
| 609 |
|
|
fflush (procfs_file);
|
| 610 |
|
|
}
|
| 611 |
|
|
|
| 612 |
|
|
lseek_offset = -1;
|
| 613 |
|
|
return ret;
|
| 614 |
|
|
}
|
| 615 |
|
|
|
| 616 |
|
|
off_t
|
| 617 |
|
|
lseek_with_trace (int fd, off_t offset, int whence, char *file, int line)
|
| 618 |
|
|
{
|
| 619 |
|
|
off_t ret;
|
| 620 |
|
|
|
| 621 |
|
|
prepare_to_trace ();
|
| 622 |
|
|
errno = 0;
|
| 623 |
|
|
ret = lseek (fd, offset, whence);
|
| 624 |
|
|
lseek_offset = ret;
|
| 625 |
|
|
if (procfs_trace && (ret == -1 || errno != 0))
|
| 626 |
|
|
{
|
| 627 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 628 |
|
|
"[lseek (0x%08lx) FAILED! (%s)]\n",
|
| 629 |
|
|
(unsigned long) offset, safe_strerror (errno));
|
| 630 |
|
|
if (procfs_file)
|
| 631 |
|
|
fflush (procfs_file);
|
| 632 |
|
|
}
|
| 633 |
|
|
|
| 634 |
|
|
return ret;
|
| 635 |
|
|
}
|
| 636 |
|
|
|
| 637 |
|
|
#endif /* NEW_PROC_API */
|
| 638 |
|
|
|
| 639 |
|
|
int
|
| 640 |
|
|
open_with_trace (char *filename, int mode, char *file, int line)
|
| 641 |
|
|
{
|
| 642 |
|
|
int ret;
|
| 643 |
|
|
|
| 644 |
|
|
prepare_to_trace ();
|
| 645 |
|
|
errno = 0;
|
| 646 |
|
|
ret = open (filename, mode);
|
| 647 |
|
|
if (procfs_trace)
|
| 648 |
|
|
{
|
| 649 |
|
|
if (info_verbose)
|
| 650 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 651 |
|
|
"%s:%d -- ", file, line);
|
| 652 |
|
|
|
| 653 |
|
|
if (errno)
|
| 654 |
|
|
{
|
| 655 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 656 |
|
|
"[open FAILED! (%s) line %d]\\n",
|
| 657 |
|
|
safe_strerror (errno), line);
|
| 658 |
|
|
}
|
| 659 |
|
|
else
|
| 660 |
|
|
{
|
| 661 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 662 |
|
|
"%d = open (%s, ", ret, filename);
|
| 663 |
|
|
if (mode == O_RDONLY)
|
| 664 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_RDONLY) %d\n",
|
| 665 |
|
|
line);
|
| 666 |
|
|
else if (mode == O_WRONLY)
|
| 667 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_WRONLY) %d\n",
|
| 668 |
|
|
line);
|
| 669 |
|
|
else if (mode == O_RDWR)
|
| 670 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_RDWR) %d\n",
|
| 671 |
|
|
line);
|
| 672 |
|
|
}
|
| 673 |
|
|
if (procfs_file)
|
| 674 |
|
|
fflush (procfs_file);
|
| 675 |
|
|
}
|
| 676 |
|
|
|
| 677 |
|
|
return ret;
|
| 678 |
|
|
}
|
| 679 |
|
|
|
| 680 |
|
|
int
|
| 681 |
|
|
close_with_trace (int fd, char *file, int line)
|
| 682 |
|
|
{
|
| 683 |
|
|
int ret;
|
| 684 |
|
|
|
| 685 |
|
|
prepare_to_trace ();
|
| 686 |
|
|
errno = 0;
|
| 687 |
|
|
ret = close (fd);
|
| 688 |
|
|
if (procfs_trace)
|
| 689 |
|
|
{
|
| 690 |
|
|
if (info_verbose)
|
| 691 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 692 |
|
|
"%s:%d -- ", file, line);
|
| 693 |
|
|
if (errno)
|
| 694 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 695 |
|
|
"[close FAILED! (%s)]\n", safe_strerror (errno));
|
| 696 |
|
|
else
|
| 697 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 698 |
|
|
"%d = close (%d)\n", ret, fd);
|
| 699 |
|
|
if (procfs_file)
|
| 700 |
|
|
fflush (procfs_file);
|
| 701 |
|
|
}
|
| 702 |
|
|
|
| 703 |
|
|
return ret;
|
| 704 |
|
|
}
|
| 705 |
|
|
|
| 706 |
|
|
pid_t
|
| 707 |
|
|
wait_with_trace (int *wstat, char *file, int line)
|
| 708 |
|
|
{
|
| 709 |
|
|
int ret, lstat = 0;
|
| 710 |
|
|
|
| 711 |
|
|
prepare_to_trace ();
|
| 712 |
|
|
if (procfs_trace)
|
| 713 |
|
|
{
|
| 714 |
|
|
if (info_verbose)
|
| 715 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 716 |
|
|
"%s:%d -- ", file, line);
|
| 717 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 718 |
|
|
"wait (line %d) ", line);
|
| 719 |
|
|
if (procfs_file)
|
| 720 |
|
|
fflush (procfs_file);
|
| 721 |
|
|
}
|
| 722 |
|
|
errno = 0;
|
| 723 |
|
|
ret = wait (&lstat);
|
| 724 |
|
|
if (procfs_trace)
|
| 725 |
|
|
{
|
| 726 |
|
|
if (errno)
|
| 727 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 728 |
|
|
"[wait FAILED! (%s)]\n", safe_strerror (errno));
|
| 729 |
|
|
else
|
| 730 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 731 |
|
|
"returned pid %d, status 0x%x\n", ret, lstat);
|
| 732 |
|
|
if (procfs_file)
|
| 733 |
|
|
fflush (procfs_file);
|
| 734 |
|
|
}
|
| 735 |
|
|
if (wstat)
|
| 736 |
|
|
*wstat = lstat;
|
| 737 |
|
|
|
| 738 |
|
|
return ret;
|
| 739 |
|
|
}
|
| 740 |
|
|
|
| 741 |
|
|
void
|
| 742 |
|
|
procfs_note (char *msg, char *file, int line)
|
| 743 |
|
|
{
|
| 744 |
|
|
prepare_to_trace ();
|
| 745 |
|
|
if (procfs_trace)
|
| 746 |
|
|
{
|
| 747 |
|
|
if (info_verbose)
|
| 748 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 749 |
|
|
"%s:%d -- ", file, line);
|
| 750 |
|
|
fprintf (procfs_file ? procfs_file : stdout, "%s", msg);
|
| 751 |
|
|
if (procfs_file)
|
| 752 |
|
|
fflush (procfs_file);
|
| 753 |
|
|
}
|
| 754 |
|
|
}
|
| 755 |
|
|
|
| 756 |
|
|
void
|
| 757 |
|
|
proc_prettyfprint_status (long flags, int why, int what, int thread)
|
| 758 |
|
|
{
|
| 759 |
|
|
prepare_to_trace ();
|
| 760 |
|
|
if (procfs_trace)
|
| 761 |
|
|
{
|
| 762 |
|
|
if (thread)
|
| 763 |
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
| 764 |
|
|
"Thread %d: ", thread);
|
| 765 |
|
|
|
| 766 |
|
|
proc_prettyfprint_flags (procfs_file ? procfs_file : stdout,
|
| 767 |
|
|
flags, 0);
|
| 768 |
|
|
|
| 769 |
|
|
if (flags & (PR_STOPPED | PR_ISTOP))
|
| 770 |
|
|
proc_prettyfprint_why (procfs_file ? procfs_file : stdout,
|
| 771 |
|
|
why, what, 0);
|
| 772 |
|
|
if (procfs_file)
|
| 773 |
|
|
fflush (procfs_file);
|
| 774 |
|
|
}
|
| 775 |
|
|
}
|
| 776 |
|
|
|
| 777 |
|
|
|
| 778 |
|
|
void
|
| 779 |
|
|
_initialize_proc_api (void)
|
| 780 |
|
|
{
|
| 781 |
|
|
struct cmd_list_element *c;
|
| 782 |
|
|
|
| 783 |
|
|
add_setshow_boolean_cmd ("procfs-trace", no_class, &procfs_trace, _("\
|
| 784 |
|
|
Set tracing for /proc api calls."), _("\
|
| 785 |
|
|
Show tracing for /proc api calls."), NULL,
|
| 786 |
|
|
set_procfs_trace_cmd,
|
| 787 |
|
|
NULL, /* FIXME: i18n: */
|
| 788 |
|
|
&setlist, &showlist);
|
| 789 |
|
|
|
| 790 |
|
|
add_setshow_filename_cmd ("procfs-file", no_class, &procfs_filename, _("\
|
| 791 |
|
|
Set filename for /proc tracefile."), _("\
|
| 792 |
|
|
Show filename for /proc tracefile."), NULL,
|
| 793 |
|
|
set_procfs_file_cmd,
|
| 794 |
|
|
NULL, /* FIXME: i18n: */
|
| 795 |
|
|
&setlist, &showlist);
|
| 796 |
|
|
}
|
