795 lines
24 KiB
C
795 lines
24 KiB
C
/* Machine independent support for SVR4 /proc (process file system) for GDB.
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Copyright (C) 1999-2017 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 <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 */
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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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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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case PIOCRUN:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCRUN) ");
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arg1 = ptr ? *(long *) ptr : 0;
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if (arg1 & PRCSIG)
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fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
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if (arg1 & PRCFAULT)
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fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
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if (arg1 & PRSTRACE)
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fprintf (procfs_file ? procfs_file : stdout, "setTrace ");
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if (arg1 & PRSHOLD)
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fprintf (procfs_file ? procfs_file : stdout, "setHold ");
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if (arg1 & PRSFAULT)
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fprintf (procfs_file ? procfs_file : stdout, "setFlt ");
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if (arg1 & PRSVADDR)
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fprintf (procfs_file ? procfs_file : stdout, "setVaddr ");
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if (arg1 & PRSTEP)
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fprintf (procfs_file ? procfs_file : stdout, "step ");
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if (arg1 & PRSABORT)
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fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
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if (arg1 & PRSTOP)
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fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
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fprintf (procfs_file ? procfs_file : stdout, "\n");
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break;
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case PIOCKILL:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCKILL) ");
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proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
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ptr ? *(long *) ptr : 0, 0);
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fprintf (procfs_file ? procfs_file : stdout, "\n");
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break;
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#ifdef PIOCSSPCACT
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case PIOCSSPCACT:
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (PIOCSSPCACT) ");
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arg1 = ptr ? *(long *) ptr : 0;
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if (arg1 & PRFS_STOPFORK)
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fprintf (procfs_file ? procfs_file : stdout, "stopFork ");
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if (arg1 & PRFS_STOPEXEC)
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fprintf (procfs_file ? procfs_file : stdout, "stopExec ");
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if (arg1 & PRFS_STOPTERM)
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fprintf (procfs_file ? procfs_file : stdout, "stopTerm ");
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if (arg1 & PRFS_STOPTCR)
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fprintf (procfs_file ? procfs_file : stdout, "stopThreadCreate ");
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if (arg1 & PRFS_STOPTTERM)
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fprintf (procfs_file ? procfs_file : stdout, "stopThreadTerm ");
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if (arg1 & PRFS_KOLC)
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fprintf (procfs_file ? procfs_file : stdout, "killOnLastClose ");
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fprintf (procfs_file ? procfs_file : stdout, "\n");
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break;
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#endif /* PIOCSSPCACT */
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default:
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if (ioctl_table[i].name)
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (%s) %s\n",
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ioctl_table[i].name,
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info_verbose ? ioctl_table[i].desc : "");
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else
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fprintf (procfs_file ? procfs_file : stdout,
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"ioctl (<unknown %ld (0x%lx)) \n", opcode, opcode);
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break;
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}
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if (procfs_file)
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fflush (procfs_file);
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}
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errno = 0;
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ret = ioctl (fd, opcode, ptr);
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if (procfs_trace && ret < 0)
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{
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fprintf (procfs_file ? procfs_file : stdout,
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"[ioctl (%s) FAILED! (%s)]\n",
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ioctl_table[i].name != NULL ?
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ioctl_table[i].name : "<unknown>",
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safe_strerror (errno));
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if (procfs_file)
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fflush (procfs_file);
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}
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return ret;
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}
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#else /* NEW_PROC_API */
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static struct trans rw_table[] = {
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#ifdef PCAGENT /* solaris */
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{ PCAGENT, "PCAGENT", "create agent lwp with regs from argument" },
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#endif
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{ PCCFAULT, "PCCFAULT", "clear current fault" },
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#ifdef PCCSIG /* solaris */
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{ PCCSIG, "PCCSIG", "clear current signal" },
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#endif
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#ifdef PCDSTOP /* solaris */
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{ PCDSTOP, "PCDSTOP", "post stop request" },
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#endif
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{ PCKILL, "PCKILL", "post a signal" },
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#ifdef PCNICE /* solaris */
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{ PCNICE, "PCNICE", "set nice priority" },
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#endif
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#ifdef PCREAD /* solaris */
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{ PCREAD, "PCREAD", "read from the address space" },
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{ PCWRITE, "PCWRITE", "write to the address space" },
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#endif
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{ PCRUN, "PCRUN", "make process/lwp runnable" },
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#ifdef PCSASRS /* solaris 2.7 only */
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{ PCSASRS, "PCSASRS", "set ancillary state registers" },
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#endif
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#ifdef PCSCRED /* solaris */
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{ PCSCRED, "PCSCRED", "set process credentials" },
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#endif
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{ PCSENTRY, "PCSENTRY", "set traced syscall entry set" },
|
|
{ PCSET, "PCSET", "set modes" },
|
|
{ PCSEXIT, "PCSEXIT", "set traced syscall exit set" },
|
|
{ PCSFAULT, "PCSFAULT", "set traced fault set" },
|
|
{ PCSFPREG, "PCSFPREG", "set floating point registers" },
|
|
#ifdef PCSHOLD /* solaris */
|
|
{ PCSHOLD, "PCSHOLD", "set signal mask" },
|
|
#endif
|
|
{ PCSREG, "PCSREG", "set general registers" },
|
|
{ PCSSIG, "PCSSIG", "set current signal" },
|
|
{ PCSTOP, "PCSTOP", "post stop request and wait" },
|
|
{ PCSTRACE, "PCSTRACE", "set traced signal set" },
|
|
#ifdef PCSVADDR /* solaris */
|
|
{ PCSVADDR, "PCSVADDR", "set pc virtual address" },
|
|
#endif
|
|
#ifdef PCSXREG /* solaris sparc only */
|
|
{ PCSXREG, "PCSXREG", "set extra registers" },
|
|
#endif
|
|
#ifdef PCTWSTOP /* solaris */
|
|
{ PCTWSTOP, "PCTWSTOP", "wait for stop, with timeout arg" },
|
|
#endif
|
|
#ifdef PCUNKILL /* solaris */
|
|
{ PCUNKILL, "PCUNKILL", "delete a pending signal" },
|
|
#endif
|
|
#ifdef PCUNSET /* solaris */
|
|
{ PCUNSET, "PCUNSET", "unset modes" },
|
|
#endif
|
|
#ifdef PCWATCH /* solaris */
|
|
{ PCWATCH, "PCWATCH", "set/unset watched memory area" },
|
|
#endif
|
|
{ PCWSTOP, "PCWSTOP", "wait for process/lwp to stop, no timeout" },
|
|
{ 0, NULL, NULL }
|
|
};
|
|
|
|
static off_t lseek_offset;
|
|
|
|
int
|
|
write_with_trace (int fd, void *varg, size_t len, char *file, int line)
|
|
{
|
|
int i = ARRAY_SIZE (rw_table) - 1;
|
|
int ret;
|
|
procfs_ctl_t *arg = (procfs_ctl_t *) varg;
|
|
|
|
prepare_to_trace ();
|
|
if (procfs_trace)
|
|
{
|
|
procfs_ctl_t opcode = arg[0];
|
|
for (i = 0; rw_table[i].name != NULL; i++)
|
|
if (rw_table[i].value == opcode)
|
|
break;
|
|
|
|
if (info_verbose)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%s:%d -- ", file, line);
|
|
switch (opcode) {
|
|
case PCSET:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSET, %s) %s\n",
|
|
arg[1] == PR_FORK ? "PR_FORK" :
|
|
arg[1] == PR_RLC ? "PR_RLC" :
|
|
#ifdef PR_ASYNC
|
|
arg[1] == PR_ASYNC ? "PR_ASYNC" :
|
|
#endif
|
|
"<unknown flag>",
|
|
info_verbose ? rw_table[i].desc : "");
|
|
break;
|
|
#ifdef PCUNSET
|
|
case PCUNSET:
|
|
#endif
|
|
#ifdef PCRESET
|
|
#if PCRESET != PCUNSET
|
|
case PCRESET:
|
|
#endif
|
|
#endif
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCRESET, %s) %s\n",
|
|
arg[1] == PR_FORK ? "PR_FORK" :
|
|
arg[1] == PR_RLC ? "PR_RLC" :
|
|
#ifdef PR_ASYNC
|
|
arg[1] == PR_ASYNC ? "PR_ASYNC" :
|
|
#endif
|
|
"<unknown flag>",
|
|
info_verbose ? rw_table[i].desc : "");
|
|
break;
|
|
case PCSTRACE:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSTRACE) ");
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
|
(sigset_t *) &arg[1], 0);
|
|
break;
|
|
case PCSFAULT:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSFAULT) ");
|
|
proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
|
|
(fltset_t *) &arg[1], 0);
|
|
break;
|
|
case PCSENTRY:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSENTRY) ");
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
|
(sysset_t *) &arg[1], 0);
|
|
break;
|
|
case PCSEXIT:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSEXIT) ");
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
|
(sysset_t *) &arg[1], 0);
|
|
break;
|
|
#ifdef PCSHOLD
|
|
case PCSHOLD:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSHOLD) ");
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
|
(sigset_t *) &arg[1], 0);
|
|
break;
|
|
#endif
|
|
case PCSSIG:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCSSIG) ");
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
|
arg[1] ? ((siginfo_t *) &arg[1])->si_signo
|
|
: 0,
|
|
0);
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
case PCRUN:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCRUN) ");
|
|
if (arg[1] & PRCSIG)
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
|
|
if (arg[1] & PRCFAULT)
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
|
|
if (arg[1] & PRSTEP)
|
|
fprintf (procfs_file ? procfs_file : stdout, "step ");
|
|
#ifdef PRSABORT
|
|
if (arg[1] & PRSABORT)
|
|
fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
|
|
#endif
|
|
#ifdef PRSTOP
|
|
if (arg[1] & PRSTOP)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
|
|
#endif
|
|
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
case PCKILL:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (PCKILL) ");
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
|
arg[1], 0);
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
default:
|
|
{
|
|
if (rw_table[i].name)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (%s) %s\n",
|
|
rw_table[i].name,
|
|
info_verbose ? rw_table[i].desc : "");
|
|
else
|
|
{
|
|
if (lseek_offset != -1)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (<unknown>, %lud bytes at 0x%08lx) \n",
|
|
(unsigned long) len, (unsigned long) lseek_offset);
|
|
else
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"write (<unknown>, %lud bytes) \n",
|
|
(unsigned long) len);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
errno = 0;
|
|
ret = write (fd, (void *) arg, len);
|
|
if (procfs_trace && ret != len)
|
|
{
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"[write (%s) FAILED! (%s)]\n",
|
|
rw_table[i].name != NULL ?
|
|
rw_table[i].name : "<unknown>",
|
|
safe_strerror (errno));
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
|
|
lseek_offset = -1;
|
|
return ret;
|
|
}
|
|
|
|
off_t
|
|
lseek_with_trace (int fd, off_t offset, int whence, char *file, int line)
|
|
{
|
|
off_t ret;
|
|
|
|
prepare_to_trace ();
|
|
errno = 0;
|
|
ret = lseek (fd, offset, whence);
|
|
lseek_offset = ret;
|
|
if (procfs_trace && (ret == -1 || errno != 0))
|
|
{
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"[lseek (0x%08lx) FAILED! (%s)]\n",
|
|
(unsigned long) offset, safe_strerror (errno));
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* NEW_PROC_API */
|
|
|
|
int
|
|
open_with_trace (char *filename, int mode, char *file, int line)
|
|
{
|
|
int ret;
|
|
|
|
prepare_to_trace ();
|
|
errno = 0;
|
|
ret = open (filename, mode);
|
|
if (procfs_trace)
|
|
{
|
|
if (info_verbose)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%s:%d -- ", file, line);
|
|
|
|
if (errno)
|
|
{
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"[open FAILED! (%s) line %d]\\n",
|
|
safe_strerror (errno), line);
|
|
}
|
|
else
|
|
{
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%d = open (%s, ", ret, filename);
|
|
if (mode == O_RDONLY)
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_RDONLY) %d\n",
|
|
line);
|
|
else if (mode == O_WRONLY)
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_WRONLY) %d\n",
|
|
line);
|
|
else if (mode == O_RDWR)
|
|
fprintf (procfs_file ? procfs_file : stdout, "O_RDWR) %d\n",
|
|
line);
|
|
}
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
close_with_trace (int fd, char *file, int line)
|
|
{
|
|
int ret;
|
|
|
|
prepare_to_trace ();
|
|
errno = 0;
|
|
ret = close (fd);
|
|
if (procfs_trace)
|
|
{
|
|
if (info_verbose)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%s:%d -- ", file, line);
|
|
if (errno)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"[close FAILED! (%s)]\n", safe_strerror (errno));
|
|
else
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%d = close (%d)\n", ret, fd);
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
pid_t
|
|
wait_with_trace (int *wstat, char *file, int line)
|
|
{
|
|
int ret, lstat = 0;
|
|
|
|
prepare_to_trace ();
|
|
if (procfs_trace)
|
|
{
|
|
if (info_verbose)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%s:%d -- ", file, line);
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"wait (line %d) ", line);
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
errno = 0;
|
|
ret = wait (&lstat);
|
|
if (procfs_trace)
|
|
{
|
|
if (errno)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"[wait FAILED! (%s)]\n", safe_strerror (errno));
|
|
else
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"returned pid %d, status 0x%x\n", ret, lstat);
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
if (wstat)
|
|
*wstat = lstat;
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
procfs_note (char *msg, char *file, int line)
|
|
{
|
|
prepare_to_trace ();
|
|
if (procfs_trace)
|
|
{
|
|
if (info_verbose)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%s:%d -- ", file, line);
|
|
fprintf (procfs_file ? procfs_file : stdout, "%s", msg);
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
}
|
|
|
|
void
|
|
proc_prettyfprint_status (long flags, int why, int what, int thread)
|
|
{
|
|
prepare_to_trace ();
|
|
if (procfs_trace)
|
|
{
|
|
if (thread)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"Thread %d: ", thread);
|
|
|
|
proc_prettyfprint_flags (procfs_file ? procfs_file : stdout,
|
|
flags, 0);
|
|
|
|
if (flags & (PR_STOPPED | PR_ISTOP))
|
|
proc_prettyfprint_why (procfs_file ? procfs_file : stdout,
|
|
why, what, 0);
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
}
|
|
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
|
extern void _initialize_proc_api (void);
|
|
|
|
void
|
|
_initialize_proc_api (void)
|
|
{
|
|
struct cmd_list_element *c;
|
|
|
|
add_setshow_boolean_cmd ("procfs-trace", no_class, &procfs_trace, _("\
|
|
Set tracing for /proc api calls."), _("\
|
|
Show tracing for /proc api calls."), NULL,
|
|
set_procfs_trace_cmd,
|
|
NULL, /* FIXME: i18n: */
|
|
&setlist, &showlist);
|
|
|
|
add_setshow_filename_cmd ("procfs-file", no_class, &procfs_filename, _("\
|
|
Set filename for /proc tracefile."), _("\
|
|
Show filename for /proc tracefile."), NULL,
|
|
set_procfs_file_cmd,
|
|
NULL, /* FIXME: i18n: */
|
|
&setlist, &showlist);
|
|
}
|