mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 18:14:13 +08:00
995816ba55
Some obvious constifications found by attempting to build 64-bit GDB on Solaris 11. gdb/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * proc-api.c (struct trans): Constify. (procfs_note): Constify. * proc-events.c (struct trans, syscall_table): * proc-flags.c (struct trans): Constify. * proc-utils.h (procfs_note): Constify. * proc-why.c (struct trans): Constify. * procfs.c (dead_procinfo, find_syscall, proc_warn, proc_error) (procfs_detach): Constify. * sol-thread.c (struct string_map): Constify. (td_err_string, td_state_string): Constify.
795 lines
24 KiB
C
795 lines
24 KiB
C
/* Machine independent support for SVR4 /proc (process file system) for GDB.
|
|
|
|
Copyright (C) 1999-2017 Free Software Foundation, Inc.
|
|
|
|
Written by Michael Snyder at Cygnus Solutions.
|
|
Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/*
|
|
* Pretty-print trace of api calls to the /proc api
|
|
* (ioctl or read/write calls).
|
|
*
|
|
*/
|
|
|
|
#include "defs.h"
|
|
#include "gdbcmd.h"
|
|
#include "completer.h"
|
|
|
|
#if defined (NEW_PROC_API)
|
|
#define _STRUCTURED_PROC 1
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/procfs.h>
|
|
#ifdef HAVE_SYS_PROC_H
|
|
#include <sys/proc.h> /* for struct proc */
|
|
#endif
|
|
#ifdef HAVE_SYS_USER_H
|
|
#include <sys/user.h> /* for struct user */
|
|
#endif
|
|
#include <fcntl.h> /* for O_RDWR etc. */
|
|
#include "gdb_wait.h"
|
|
|
|
#include "proc-utils.h"
|
|
|
|
/* Much of the information used in the /proc interface, particularly for
|
|
printing status information, is kept as tables of structures of the
|
|
following form. These tables can be used to map numeric values to
|
|
their symbolic names and to a string that describes their specific use. */
|
|
|
|
struct trans {
|
|
long value; /* The numeric value */
|
|
const char *name; /* The equivalent symbolic value */
|
|
const char *desc; /* Short description of value */
|
|
};
|
|
|
|
static int procfs_trace = 0;
|
|
static FILE *procfs_file = NULL;
|
|
static char *procfs_filename;
|
|
|
|
static void
|
|
prepare_to_trace (void)
|
|
{
|
|
if (procfs_trace) /* if procfs tracing turned on */
|
|
if (procfs_file == NULL) /* if output file not yet open */
|
|
procfs_file = fopen (procfs_filename, "a"); /* open output file */
|
|
}
|
|
|
|
static void
|
|
set_procfs_trace_cmd (char *args, int from_tty, struct cmd_list_element *c)
|
|
{
|
|
#if 0 /* not sure what I might actually need to do here, if anything */
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
set_procfs_file_cmd (char *args, int from_tty, struct cmd_list_element *c)
|
|
{
|
|
/* Just changed the filename for procfs tracing.
|
|
If a file was already open, close it. */
|
|
if (procfs_file)
|
|
fclose (procfs_file);
|
|
procfs_file = NULL;
|
|
}
|
|
|
|
|
|
#ifndef NEW_PROC_API
|
|
|
|
static struct trans ioctl_table[] = {
|
|
#ifdef PIOCACINFO /* irix */
|
|
{ PIOCACINFO, "PIOCACINFO", "get process account info" },
|
|
#endif
|
|
{ PIOCACTION, "PIOCACTION", "get signal action structs" },
|
|
#ifdef PIOCARGUMENTS /* osf */
|
|
{ PIOCARGUMENTS, "PIOCARGUMENTS", "command line args" },
|
|
#endif
|
|
#ifdef PIOCAUXV /* solaris aux vectors */
|
|
{ PIOCAUXV, "PIOCAUXV", "get aux vector" },
|
|
{ PIOCNAUXV, "PIOCNAUXV", "get number of aux vector entries" },
|
|
#endif /* AUXV */
|
|
{ PIOCCFAULT, "PIOCCFAULT", "clear current fault" },
|
|
{ PIOCCRED, "PIOCCRED", "get process credentials" },
|
|
#ifdef PIOCENEVCTRS /* irix event counters */
|
|
{ PIOCENEVCTRS, "PIOCENEVCTRS", "acquire and start event counters" },
|
|
{ PIOCGETEVCTRL, "PIOCGETEVCTRL", "get control info of event counters" },
|
|
{ PIOCGETEVCTRS, "PIOCGETEVCTRS", "dump event counters" },
|
|
{ PIOCGETPREVCTRS, "PIOCGETPREVCTRS", "dump event counters & prusage info" },
|
|
{ PIOCRELEVCTRS, "PIOCRELEVCTRS", "release/stop event counters" },
|
|
{ PIOCSETEVCTRL, "PIOCSETEVCTRL", "set control info of event counters" },
|
|
{ PIOCGETPTIMER, "PIOCGETPTIMER", "get process timers" },
|
|
#endif /* irix event counters */
|
|
{ PIOCGENTRY, "PIOCGENTRY", "get traced syscall entry set" },
|
|
#if defined (PIOCGETPR)
|
|
{ PIOCGETPR, "PIOCGETPR", "read struct proc" },
|
|
#endif
|
|
#if defined (PIOCGETU)
|
|
{ PIOCGETU, "PIOCGETU", "read user area" },
|
|
#endif
|
|
#if defined (PIOCGETUTK) && (defined(KERNEL) || defined(SHOW_UTT)) /* osf */
|
|
{ PIOCGETUTK, "PIOCGETUTK", "get the utask struct" },
|
|
#endif
|
|
{ PIOCGEXIT, "PIOCGEXIT", "get traced syscall exit set" },
|
|
{ PIOCGFAULT, "PIOCGFAULT", "get traced fault set" },
|
|
#ifdef PIOCGFPCR /* osf */
|
|
{ PIOCGFPCR, "PIOCGFPCR", "get FP control register" },
|
|
{ PIOCSFPCR, "PIOCSFPCR", "set FP conrtol register" },
|
|
#endif
|
|
{ PIOCGFPREG, "PIOCGFPREG", "get floating point registers" },
|
|
{ PIOCGHOLD, "PIOCGHOLD", "get held signal set" },
|
|
{ PIOCGREG, "PIOCGREG", "get general registers" },
|
|
{ PIOCGROUPS, "PIOCGROUPS", "get supplementary groups" },
|
|
#ifdef PIOCGSPCACT /* osf */
|
|
{ PIOCGSPCACT, "PIOCGSPCACT", "get special action" },
|
|
{ PIOCSSPCACT, "PIOCSSPCACT", "set special action" },
|
|
#endif
|
|
{ PIOCGTRACE, "PIOCGTRACE", "get traced signal set" },
|
|
#ifdef PIOCGWATCH /* irix watchpoints */
|
|
{ PIOCGWATCH, "PIOCGWATCH", "get watchpoint" },
|
|
{ PIOCSWATCH, "PIOCSWATCH", "set watchpoint" },
|
|
{ PIOCNWATCH, "PIOCNWATCH", "get number of watchpoints" },
|
|
#endif /* irix watchpoints */
|
|
#ifdef PIOCGWIN /* solaris sparc */
|
|
{ PIOCGWIN, "PIOCGWIN", "get gwindows_t" },
|
|
#endif
|
|
#ifdef PIOCGXREG /* solaris sparc extra regs */
|
|
{ PIOCGXREGSIZE, "PIOCXREGSIZE", "get extra register state size" },
|
|
{ PIOCGXREG, "PIOCGXREG", "get extra register state" },
|
|
{ PIOCSXREG, "PIOCSXREG", "set extra register state" },
|
|
#endif /* XREG */
|
|
{ PIOCKILL, "PIOCKILL", "send signal" },
|
|
#ifdef PIOCLDT /* solaris i386 */
|
|
{ PIOCLDT, "PIOCLDT", "get LDT" },
|
|
{ PIOCNLDT, "PIOCNLDT", "get number of LDT entries" },
|
|
#endif
|
|
#ifdef PIOCLSTATUS /* solaris */
|
|
{ PIOCLSTATUS, "PIOCLSTATUS", "get status of all lwps" },
|
|
{ PIOCLUSAGE, "PIOCLUSAGE", "get resource usage of all lwps" },
|
|
{ PIOCOPENLWP, "PIOCOPENLWP", "get lwp file descriptor" },
|
|
{ PIOCLWPIDS, "PIOCLWPIDS", "get lwp identifiers" },
|
|
#endif /* LWP */
|
|
{ PIOCMAP, "PIOCMAP", "get memory map information" },
|
|
{ PIOCMAXSIG, "PIOCMAXSIG", "get max signal number" },
|
|
{ PIOCNICE, "PIOCNICE", "set nice priority" },
|
|
{ PIOCNMAP, "PIOCNMAP", "get number of memory mappings" },
|
|
{ PIOCOPENM, "PIOCOPENM", "open mapped object for reading" },
|
|
#ifdef PIOCOPENMOBS /* osf */
|
|
{ PIOCOPENMOBS, "PIOCOPENMOBS", "open mapped object" },
|
|
#endif
|
|
#ifdef PIOCOPENPD /* solaris */
|
|
{ PIOCOPENPD, "PIOCOPENPD", "get page data file descriptor" },
|
|
#endif
|
|
{ PIOCPSINFO, "PIOCPSINFO", "get ps(1) information" },
|
|
{ PIOCRESET, "PIOCRESET", "reset process flags" },
|
|
{ PIOCRFORK, "PIOCRFORK", "reset inherit-on-fork flag" },
|
|
{ PIOCRRLC, "PIOCRRLC", "reset run-on-last-close flag" },
|
|
{ PIOCRUN, "PIOCRUN", "make process runnable" },
|
|
#ifdef PIOCSAVECCNTRS /* irix */
|
|
{ PIOCSAVECCNTRS, "PIOCSAVECCNTRS", "parent gets child cntrs" },
|
|
#endif
|
|
{ PIOCSENTRY, "PIOCSENTRY", "set traced syscall entry set" },
|
|
{ PIOCSET, "PIOCSET", "set process flags" },
|
|
{ PIOCSEXIT, "PIOCSEXIT", "set traced syscall exit set" },
|
|
{ PIOCSFAULT, "PIOCSFAULT", "set traced fault set" },
|
|
{ PIOCSFORK, "PIOCSFORK", "set inherit-on-fork flag" },
|
|
{ PIOCSFPREG, "PIOCSFPREG", "set floating point registers" },
|
|
{ PIOCSHOLD, "PIOCSHOLD", "set held signal set" },
|
|
{ PIOCSREG, "PIOCSREG", "set general registers" },
|
|
{ PIOCSRLC, "PIOCSRLC", "set run-on-last-close flag" },
|
|
{ PIOCSSIG, "PIOCSSIG", "set current signal" },
|
|
{ PIOCSTATUS, "PIOCSTATUS", "get process status" },
|
|
{ PIOCSTOP, "PIOCSTOP", "post stop request" },
|
|
{ PIOCSTRACE, "PIOCSTRACE", "set traced signal set" },
|
|
{ PIOCUNKILL, "PIOCUNKILL", "delete a signal" },
|
|
#ifdef PIOCUSAGE /* solaris */
|
|
{ PIOCUSAGE, "PIOCUSAGE", "get resource usage" },
|
|
#endif
|
|
{ PIOCWSTOP, "PIOCWSTOP", "wait for process to stop" },
|
|
|
|
#ifdef PIOCNTHR /* osf threads */
|
|
{ PIOCNTHR, "PIOCNTHR", "get thread count" },
|
|
{ PIOCRTINH, "PIOCRTINH", "reset inherit-on-thread-creation" },
|
|
{ PIOCSTINH, "PIOCSTINH", "set inherit-on-thread-creation" },
|
|
{ PIOCTLIST, "PIOCTLIST", "get thread ids" },
|
|
{ PIOCXPTH, "PIOCXPTH", "translate port to thread handle" },
|
|
{ PIOCTRUN, "PIOCTRUN", "make thread runnable" },
|
|
{ PIOCTSTATUS, "PIOCTSTATUS", "get thread status" },
|
|
{ PIOCTSTOP, "PIOCTSTOP", "stop a thread" },
|
|
/* ... TGTRACE TSTRACE TSSIG TKILL TUNKILL TCFAULT TGFAULT TSFAULT
|
|
TGFPREG TSFPREG TGREG TSREG TACTION TTERM TABRUN TGENTRY TSENTRY
|
|
TGEXIT TSEXIT TSHOLD ... thread functions */
|
|
#endif /* osf threads */
|
|
{ -1, NULL, NULL }
|
|
};
|
|
|
|
int
|
|
ioctl_with_trace (int fd, long opcode, void *ptr, char *file, int line)
|
|
{
|
|
int i = 0;
|
|
int ret;
|
|
int arg1;
|
|
|
|
prepare_to_trace ();
|
|
|
|
if (procfs_trace)
|
|
{
|
|
for (i = 0; ioctl_table[i].name != NULL; i++)
|
|
if (ioctl_table[i].value == opcode)
|
|
break;
|
|
|
|
if (info_verbose)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"%s:%d -- ", file, line);
|
|
switch (opcode) {
|
|
case PIOCSET:
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCSET, %s) %s\n",
|
|
arg1 == PR_FORK ? "PR_FORK" :
|
|
arg1 == PR_RLC ? "PR_RLC" :
|
|
#ifdef PR_ASYNC
|
|
arg1 == PR_ASYNC ? "PR_ASYNC" :
|
|
#endif
|
|
"<unknown flag>",
|
|
info_verbose ? ioctl_table[i].desc : "");
|
|
break;
|
|
case PIOCRESET:
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCRESET, %s) %s\n",
|
|
arg1 == PR_FORK ? "PR_FORK" :
|
|
arg1 == PR_RLC ? "PR_RLC" :
|
|
#ifdef PR_ASYNC
|
|
arg1 == PR_ASYNC ? "PR_ASYNC" :
|
|
#endif
|
|
"<unknown flag>",
|
|
info_verbose ? ioctl_table[i].desc : "");
|
|
break;
|
|
case PIOCSTRACE:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCSTRACE) ");
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
|
(sigset_t *) ptr, 0);
|
|
break;
|
|
case PIOCSFAULT:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (%s) ",
|
|
opcode == PIOCSFAULT ? "PIOCSFAULT" : "PIOCGFAULT");
|
|
proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
|
|
(fltset_t *) ptr, 0);
|
|
break;
|
|
case PIOCSENTRY:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (%s) ",
|
|
opcode == PIOCSENTRY ? "PIOCSENTRY" : "PIOCGENTRY");
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
|
(sysset_t *) ptr, 0);
|
|
break;
|
|
case PIOCSEXIT:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (%s) ",
|
|
opcode == PIOCSEXIT ? "PIOCSEXIT" : "PIOCGEXIT");
|
|
proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
|
|
(sysset_t *) ptr, 0);
|
|
break;
|
|
case PIOCSHOLD:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (%s) ",
|
|
opcode == PIOCSHOLD ? "PIOCSHOLD" : "PIOCGHOLD");
|
|
proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
|
|
(sigset_t *) ptr, 0);
|
|
break;
|
|
case PIOCSSIG:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCSSIG) ");
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
|
ptr ? ((siginfo_t *) ptr)->si_signo : 0,
|
|
0);
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
case PIOCRUN:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCRUN) ");
|
|
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
|
if (arg1 & PRCSIG)
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
|
|
if (arg1 & PRCFAULT)
|
|
fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
|
|
if (arg1 & PRSTRACE)
|
|
fprintf (procfs_file ? procfs_file : stdout, "setTrace ");
|
|
if (arg1 & PRSHOLD)
|
|
fprintf (procfs_file ? procfs_file : stdout, "setHold ");
|
|
if (arg1 & PRSFAULT)
|
|
fprintf (procfs_file ? procfs_file : stdout, "setFlt ");
|
|
if (arg1 & PRSVADDR)
|
|
fprintf (procfs_file ? procfs_file : stdout, "setVaddr ");
|
|
if (arg1 & PRSTEP)
|
|
fprintf (procfs_file ? procfs_file : stdout, "step ");
|
|
if (arg1 & PRSABORT)
|
|
fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
|
|
if (arg1 & PRSTOP)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
|
|
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
case PIOCKILL:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCKILL) ");
|
|
proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
|
|
ptr ? *(long *) ptr : 0, 0);
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
#ifdef PIOCSSPCACT
|
|
case PIOCSSPCACT:
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (PIOCSSPCACT) ");
|
|
arg1 = ptr ? *(long *) ptr : 0;
|
|
if (arg1 & PRFS_STOPFORK)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopFork ");
|
|
if (arg1 & PRFS_STOPEXEC)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopExec ");
|
|
if (arg1 & PRFS_STOPTERM)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopTerm ");
|
|
if (arg1 & PRFS_STOPTCR)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopThreadCreate ");
|
|
if (arg1 & PRFS_STOPTTERM)
|
|
fprintf (procfs_file ? procfs_file : stdout, "stopThreadTerm ");
|
|
if (arg1 & PRFS_KOLC)
|
|
fprintf (procfs_file ? procfs_file : stdout, "killOnLastClose ");
|
|
fprintf (procfs_file ? procfs_file : stdout, "\n");
|
|
break;
|
|
#endif /* PIOCSSPCACT */
|
|
default:
|
|
if (ioctl_table[i].name)
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (%s) %s\n",
|
|
ioctl_table[i].name,
|
|
info_verbose ? ioctl_table[i].desc : "");
|
|
else
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"ioctl (<unknown %ld (0x%lx)) \n", opcode, opcode);
|
|
break;
|
|
}
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
errno = 0;
|
|
ret = ioctl (fd, opcode, ptr);
|
|
if (procfs_trace && ret < 0)
|
|
{
|
|
fprintf (procfs_file ? procfs_file : stdout,
|
|
"[ioctl (%s) FAILED! (%s)]\n",
|
|
ioctl_table[i].name != NULL ?
|
|
ioctl_table[i].name : "<unknown>",
|
|
safe_strerror (errno));
|
|
if (procfs_file)
|
|
fflush (procfs_file);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#else /* NEW_PROC_API */
|
|
|
|
static struct trans rw_table[] = {
|
|
#ifdef PCAGENT /* solaris */
|
|
{ PCAGENT, "PCAGENT", "create agent lwp with regs from argument" },
|
|
#endif
|
|
{ PCCFAULT, "PCCFAULT", "clear current fault" },
|
|
#ifdef PCCSIG /* solaris */
|
|
{ PCCSIG, "PCCSIG", "clear current signal" },
|
|
#endif
|
|
#ifdef PCDSTOP /* solaris */
|
|
{ PCDSTOP, "PCDSTOP", "post stop request" },
|
|
#endif
|
|
{ PCKILL, "PCKILL", "post a signal" },
|
|
#ifdef PCNICE /* solaris */
|
|
{ PCNICE, "PCNICE", "set nice priority" },
|
|
#endif
|
|
#ifdef PCREAD /* solaris */
|
|
{ PCREAD, "PCREAD", "read from the address space" },
|
|
{ PCWRITE, "PCWRITE", "write to the address space" },
|
|
#endif
|
|
{ PCRUN, "PCRUN", "make process/lwp runnable" },
|
|
#ifdef PCSASRS /* solaris 2.7 only */
|
|
{ PCSASRS, "PCSASRS", "set ancillary state registers" },
|
|
#endif
|
|
#ifdef PCSCRED /* solaris */
|
|
{ PCSCRED, "PCSCRED", "set process credentials" },
|
|
#endif
|
|
{ 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 (const char *msg, const 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);
|
|
|
|
procfs_filename = xstrdup ("procfs_trace");
|
|
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);
|
|
}
|