diff options
Diffstat (limited to 'gdb/proc-api.c')
| -rw-r--r-- | gdb/proc-api.c | 789 |
1 files changed, 0 insertions, 789 deletions
diff --git a/gdb/proc-api.c b/gdb/proc-api.c deleted file mode 100644 index 986691dc83d..00000000000 --- a/gdb/proc-api.c +++ /dev/null @@ -1,789 +0,0 @@ -/* Machine independent support for SVR4 /proc (process file system) for GDB. - Copyright 1999, 2000, 2001 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 2 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, write to the Free Software Foundation, -Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* - * 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 <stdio.h> -#include <sys/types.h> -#include <sys/procfs.h> -#include <sys/proc.h> /* for struct proc */ -#ifdef HAVE_SYS_USER_H -#include <sys/user.h> /* for struct user */ -#endif -#include <fcntl.h> /* for O_RDWR etc. */ -#include <sys/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 */ - char *name; /* The equivalent symbolic value */ - char *desc; /* Short description of value */ -}; - -static int procfs_trace = 0; -static FILE *procfs_file = NULL; -static char *procfs_filename = "procfs_trace"; - -static void -prepare_to_trace (void) -{ - if (procfs_trace) /* if procfs tracing turned on */ - if (procfs_file == NULL) /* if output file not yet open */ - if (procfs_filename != NULL) /* if output filename known */ - 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 and unixware */ - { 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 - { PCDSTOP, "PCDSTOP", "post stop request" }, - { PCKILL, "PCKILL", "post a signal" }, - { PCNICE, "PCNICE", "set nice priority" }, -#ifdef PCREAD /* solaris */ - { PCREAD, "PCREAD", "read from the address space" }, - { PCWRITE, "PCWRITE", "write to the address space" }, -#endif -#ifdef PCRESET /* unixware */ - { PCRESET, "PCRESET", "unset modes" }, -#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" }, - { PCSHOLD, "PCSHOLD", "set signal mask" }, - { 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 - { PCUNKILL, "PCUNKILL", "delete a pending signal" }, -#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; - 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; - case PCSHOLD: - fprintf (procfs_file ? procfs_file : stdout, - "write (PCSHOLD) "); - proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout, - (sigset_t *) &arg[1], 0); - break; - 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 "); - if (arg[1] & PRSABORT) - fprintf (procfs_file ? procfs_file : stdout, "syscallAbort "); - if (arg[1] & PRSTOP) - fprintf (procfs_file ? procfs_file : stdout, "stopReq "); - - 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: - { -#ifdef BREAKPOINT - static unsigned char break_insn[] = BREAKPOINT; - - if (len == sizeof (break_insn) && - memcmp (arg, &break_insn, len) == 0) - fprintf (procfs_file ? procfs_file : stdout, - "write (<breakpoint at 0x%08lx>) \n", - (unsigned long) lseek_offset); - else -#endif - 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, 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); - } -} - - -void -_initialize_proc_api (void) -{ - struct cmd_list_element *c; - - c = add_set_cmd ("procfs-trace", no_class, - var_boolean, (char *) &procfs_trace, - "Set tracing for /proc api calls.\n", &setlist); - - add_show_from_set (c, &showlist); - set_cmd_sfunc (c, set_procfs_trace_cmd); - c->completer = filename_completer; - - c = add_set_cmd ("procfs-file", no_class, var_filename, - (char *) &procfs_filename, - "Set filename for /proc tracefile.\n", &setlist); - - add_show_from_set (c, &showlist); - set_cmd_sfunc (c, set_procfs_file_cmd); -} |