-static char *
-sigcodedesc (sip)
- siginfo_t *sip;
-{
- struct sigcode *scp;
- char *desc = NULL;
-
- for (scp = siginfo_table; scp -> codename != NULL; scp++)
- {
- if ((scp -> signo == sip -> si_signo) &&
- (scp -> code == sip -> si_code))
- {
- desc = scp -> desc;
- break;
- }
- }
- if (desc == NULL)
- {
- desc = "Unrecognized signal or trap use";
- }
- return (desc);
-}
-
-/*
-
-LOCAL FUNCTION
-
- syscallname - translate a system call number into a system call name
-
-SYNOPSIS
-
- char *syscallname (int syscallnum)
-
-DESCRIPTION
-
- Given a system call number, translate it into the printable name
- of a system call, or into "syscall <num>" if it is an unknown
- number.
- */
-
-static char *
-syscallname (syscallnum)
- int syscallnum;
-{
- static char locbuf[32];
-
- if (syscallnum >= 0 && syscallnum < MAX_SYSCALLS
- && syscall_table[syscallnum] != NULL)
- return syscall_table[syscallnum];
- else
- {
- sprintf (locbuf, "syscall %u", syscallnum);
- return locbuf;
- }
-}
-
-/*
-
-LOCAL FUNCTION
-
- init_syscall_table - initialize syscall translation table
-
-SYNOPSIS
-
- void init_syscall_table (void)
-
-DESCRIPTION
-
- Dynamically initialize the translation table to convert system
- call numbers into printable system call names. Done once per
- gdb run, on initialization.
-
-NOTES
-
- This is awfully ugly, but preprocessor tricks to make it prettier
- tend to be nonportable.
- */
-
-static void
-init_syscall_table ()
-{
-#if defined (SYS_exit)
- syscall_table[SYS_exit] = "exit";
-#endif
-#if defined (SYS_fork)
- syscall_table[SYS_fork] = "fork";
-#endif
-#if defined (SYS_read)
- syscall_table[SYS_read] = "read";
-#endif
-#if defined (SYS_write)
- syscall_table[SYS_write] = "write";
-#endif
-#if defined (SYS_open)
- syscall_table[SYS_open] = "open";
-#endif
-#if defined (SYS_close)
- syscall_table[SYS_close] = "close";
-#endif
-#if defined (SYS_wait)
- syscall_table[SYS_wait] = "wait";
-#endif
-#if defined (SYS_creat)
- syscall_table[SYS_creat] = "creat";
-#endif
-#if defined (SYS_link)
- syscall_table[SYS_link] = "link";
-#endif
-#if defined (SYS_unlink)
- syscall_table[SYS_unlink] = "unlink";
-#endif
-#if defined (SYS_exec)
- syscall_table[SYS_exec] = "exec";
-#endif
-#if defined (SYS_execv)
- syscall_table[SYS_execv] = "execv";
-#endif
-#if defined (SYS_execve)
- syscall_table[SYS_execve] = "execve";
-#endif
-#if defined (SYS_chdir)
- syscall_table[SYS_chdir] = "chdir";
-#endif
-#if defined (SYS_time)
- syscall_table[SYS_time] = "time";
-#endif
-#if defined (SYS_mknod)
- syscall_table[SYS_mknod] = "mknod";
-#endif
-#if defined (SYS_chmod)
- syscall_table[SYS_chmod] = "chmod";
-#endif
-#if defined (SYS_chown)
- syscall_table[SYS_chown] = "chown";
-#endif
-#if defined (SYS_brk)
- syscall_table[SYS_brk] = "brk";
-#endif
-#if defined (SYS_stat)
- syscall_table[SYS_stat] = "stat";
-#endif
-#if defined (SYS_lseek)
- syscall_table[SYS_lseek] = "lseek";
-#endif
-#if defined (SYS_getpid)
- syscall_table[SYS_getpid] = "getpid";
-#endif
-#if defined (SYS_mount)
- syscall_table[SYS_mount] = "mount";
-#endif
-#if defined (SYS_umount)
- syscall_table[SYS_umount] = "umount";
-#endif
-#if defined (SYS_setuid)
- syscall_table[SYS_setuid] = "setuid";
-#endif
-#if defined (SYS_getuid)
- syscall_table[SYS_getuid] = "getuid";
-#endif
-#if defined (SYS_stime)
- syscall_table[SYS_stime] = "stime";
-#endif
-#if defined (SYS_ptrace)
- syscall_table[SYS_ptrace] = "ptrace";
-#endif
-#if defined (SYS_alarm)
- syscall_table[SYS_alarm] = "alarm";
-#endif
-#if defined (SYS_fstat)
- syscall_table[SYS_fstat] = "fstat";
-#endif
-#if defined (SYS_pause)
- syscall_table[SYS_pause] = "pause";
-#endif
-#if defined (SYS_utime)
- syscall_table[SYS_utime] = "utime";
-#endif
-#if defined (SYS_stty)
- syscall_table[SYS_stty] = "stty";
-#endif
-#if defined (SYS_gtty)
- syscall_table[SYS_gtty] = "gtty";
-#endif
-#if defined (SYS_access)
- syscall_table[SYS_access] = "access";
-#endif
-#if defined (SYS_nice)
- syscall_table[SYS_nice] = "nice";
-#endif
-#if defined (SYS_statfs)
- syscall_table[SYS_statfs] = "statfs";
-#endif
-#if defined (SYS_sync)
- syscall_table[SYS_sync] = "sync";
-#endif
-#if defined (SYS_kill)
- syscall_table[SYS_kill] = "kill";
-#endif
-#if defined (SYS_fstatfs)
- syscall_table[SYS_fstatfs] = "fstatfs";
-#endif
-#if defined (SYS_pgrpsys)
- syscall_table[SYS_pgrpsys] = "pgrpsys";
-#endif
-#if defined (SYS_xenix)
- syscall_table[SYS_xenix] = "xenix";
-#endif
-#if defined (SYS_dup)
- syscall_table[SYS_dup] = "dup";
-#endif
-#if defined (SYS_pipe)
- syscall_table[SYS_pipe] = "pipe";
-#endif
-#if defined (SYS_times)
- syscall_table[SYS_times] = "times";
-#endif
-#if defined (SYS_profil)
- syscall_table[SYS_profil] = "profil";
-#endif
-#if defined (SYS_plock)
- syscall_table[SYS_plock] = "plock";
-#endif
-#if defined (SYS_setgid)
- syscall_table[SYS_setgid] = "setgid";
-#endif
-#if defined (SYS_getgid)
- syscall_table[SYS_getgid] = "getgid";
-#endif
-#if defined (SYS_signal)
- syscall_table[SYS_signal] = "signal";
-#endif
-#if defined (SYS_msgsys)
- syscall_table[SYS_msgsys] = "msgsys";
-#endif
-#if defined (SYS_sys3b)
- syscall_table[SYS_sys3b] = "sys3b";
-#endif
-#if defined (SYS_sysi86)
- syscall_table[SYS_sysi86] = "sysi86";
-#endif
-#if defined (SYS_acct)
- syscall_table[SYS_acct] = "acct";
-#endif
-#if defined (SYS_shmsys)
- syscall_table[SYS_shmsys] = "shmsys";
-#endif
-#if defined (SYS_semsys)
- syscall_table[SYS_semsys] = "semsys";
-#endif
-#if defined (SYS_ioctl)
- syscall_table[SYS_ioctl] = "ioctl";
-#endif
-#if defined (SYS_uadmin)
- syscall_table[SYS_uadmin] = "uadmin";
-#endif
-#if defined (SYS_utssys)
- syscall_table[SYS_utssys] = "utssys";
-#endif
-#if defined (SYS_fsync)
- syscall_table[SYS_fsync] = "fsync";
-#endif
-#if defined (SYS_umask)
- syscall_table[SYS_umask] = "umask";
-#endif
-#if defined (SYS_chroot)
- syscall_table[SYS_chroot] = "chroot";
-#endif
-#if defined (SYS_fcntl)
- syscall_table[SYS_fcntl] = "fcntl";
-#endif
-#if defined (SYS_ulimit)
- syscall_table[SYS_ulimit] = "ulimit";
-#endif
-#if defined (SYS_rfsys)
- syscall_table[SYS_rfsys] = "rfsys";
-#endif
-#if defined (SYS_rmdir)
- syscall_table[SYS_rmdir] = "rmdir";
-#endif
-#if defined (SYS_mkdir)
- syscall_table[SYS_mkdir] = "mkdir";
-#endif
-#if defined (SYS_getdents)
- syscall_table[SYS_getdents] = "getdents";
-#endif
-#if defined (SYS_sysfs)
- syscall_table[SYS_sysfs] = "sysfs";
-#endif
-#if defined (SYS_getmsg)
- syscall_table[SYS_getmsg] = "getmsg";
-#endif
-#if defined (SYS_putmsg)
- syscall_table[SYS_putmsg] = "putmsg";
-#endif
-#if defined (SYS_poll)
- syscall_table[SYS_poll] = "poll";
-#endif
-#if defined (SYS_lstat)
- syscall_table[SYS_lstat] = "lstat";
-#endif
-#if defined (SYS_symlink)
- syscall_table[SYS_symlink] = "symlink";
-#endif
-#if defined (SYS_readlink)
- syscall_table[SYS_readlink] = "readlink";
-#endif
-#if defined (SYS_setgroups)
- syscall_table[SYS_setgroups] = "setgroups";
-#endif
-#if defined (SYS_getgroups)
- syscall_table[SYS_getgroups] = "getgroups";
-#endif
-#if defined (SYS_fchmod)
- syscall_table[SYS_fchmod] = "fchmod";
-#endif
-#if defined (SYS_fchown)
- syscall_table[SYS_fchown] = "fchown";
-#endif
-#if defined (SYS_sigprocmask)
- syscall_table[SYS_sigprocmask] = "sigprocmask";
-#endif
-#if defined (SYS_sigsuspend)
- syscall_table[SYS_sigsuspend] = "sigsuspend";
-#endif
-#if defined (SYS_sigaltstack)
- syscall_table[SYS_sigaltstack] = "sigaltstack";
-#endif
-#if defined (SYS_sigaction)
- syscall_table[SYS_sigaction] = "sigaction";
-#endif
-#if defined (SYS_sigpending)
- syscall_table[SYS_sigpending] = "sigpending";
-#endif
-#if defined (SYS_context)
- syscall_table[SYS_context] = "context";
-#endif
-#if defined (SYS_evsys)
- syscall_table[SYS_evsys] = "evsys";
-#endif
-#if defined (SYS_evtrapret)
- syscall_table[SYS_evtrapret] = "evtrapret";
-#endif
-#if defined (SYS_statvfs)
- syscall_table[SYS_statvfs] = "statvfs";
-#endif
-#if defined (SYS_fstatvfs)
- syscall_table[SYS_fstatvfs] = "fstatvfs";
-#endif
-#if defined (SYS_nfssys)
- syscall_table[SYS_nfssys] = "nfssys";
-#endif
-#if defined (SYS_waitsys)
- syscall_table[SYS_waitsys] = "waitsys";
-#endif
-#if defined (SYS_sigsendsys)
- syscall_table[SYS_sigsendsys] = "sigsendsys";
-#endif
-#if defined (SYS_hrtsys)
- syscall_table[SYS_hrtsys] = "hrtsys";
-#endif
-#if defined (SYS_acancel)
- syscall_table[SYS_acancel] = "acancel";
-#endif
-#if defined (SYS_async)
- syscall_table[SYS_async] = "async";
-#endif
-#if defined (SYS_priocntlsys)
- syscall_table[SYS_priocntlsys] = "priocntlsys";
-#endif
-#if defined (SYS_pathconf)
- syscall_table[SYS_pathconf] = "pathconf";
-#endif
-#if defined (SYS_mincore)
- syscall_table[SYS_mincore] = "mincore";
-#endif
-#if defined (SYS_mmap)
- syscall_table[SYS_mmap] = "mmap";
-#endif
-#if defined (SYS_mprotect)
- syscall_table[SYS_mprotect] = "mprotect";
-#endif
-#if defined (SYS_munmap)
- syscall_table[SYS_munmap] = "munmap";
-#endif
-#if defined (SYS_fpathconf)
- syscall_table[SYS_fpathconf] = "fpathconf";
-#endif
-#if defined (SYS_vfork)
- syscall_table[SYS_vfork] = "vfork";
-#endif
-#if defined (SYS_fchdir)
- syscall_table[SYS_fchdir] = "fchdir";
-#endif
-#if defined (SYS_readv)
- syscall_table[SYS_readv] = "readv";
-#endif
-#if defined (SYS_writev)
- syscall_table[SYS_writev] = "writev";
-#endif
-#if defined (SYS_xstat)
- syscall_table[SYS_xstat] = "xstat";
-#endif
-#if defined (SYS_lxstat)
- syscall_table[SYS_lxstat] = "lxstat";
-#endif
-#if defined (SYS_fxstat)
- syscall_table[SYS_fxstat] = "fxstat";
-#endif
-#if defined (SYS_xmknod)
- syscall_table[SYS_xmknod] = "xmknod";
-#endif
-#if defined (SYS_clocal)
- syscall_table[SYS_clocal] = "clocal";
-#endif
-#if defined (SYS_setrlimit)
- syscall_table[SYS_setrlimit] = "setrlimit";
-#endif
-#if defined (SYS_getrlimit)
- syscall_table[SYS_getrlimit] = "getrlimit";
-#endif
-#if defined (SYS_lchown)
- syscall_table[SYS_lchown] = "lchown";
-#endif
-#if defined (SYS_memcntl)
- syscall_table[SYS_memcntl] = "memcntl";
-#endif
-#if defined (SYS_getpmsg)
- syscall_table[SYS_getpmsg] = "getpmsg";
-#endif
-#if defined (SYS_putpmsg)
- syscall_table[SYS_putpmsg] = "putpmsg";
-#endif
-#if defined (SYS_rename)
- syscall_table[SYS_rename] = "rename";
-#endif
-#if defined (SYS_uname)
- syscall_table[SYS_uname] = "uname";
-#endif
-#if defined (SYS_setegid)
- syscall_table[SYS_setegid] = "setegid";
-#endif
-#if defined (SYS_sysconfig)
- syscall_table[SYS_sysconfig] = "sysconfig";
-#endif
-#if defined (SYS_adjtime)
- syscall_table[SYS_adjtime] = "adjtime";
-#endif
-#if defined (SYS_systeminfo)
- syscall_table[SYS_systeminfo] = "systeminfo";
-#endif
-#if defined (SYS_seteuid)
- syscall_table[SYS_seteuid] = "seteuid";
-#endif
-#if defined (SYS_sproc)
- syscall_table[SYS_sproc] = "sproc";
-#endif
-#if defined (SYS_keyctl)
- syscall_table[SYS_keyctl] = "keyctl";
-#endif
-#if defined (SYS_secsys)
- syscall_table[SYS_secsys] = "secsys";
-#endif
-#if defined (SYS_filepriv)
- syscall_table[SYS_filepriv] = "filepriv";
-#endif
-#if defined (SYS_procpriv)
- syscall_table[SYS_procpriv] = "procpriv";
-#endif
-#if defined (SYS_devstat)
- syscall_table[SYS_devstat] = "devstat";
-#endif
-#if defined (SYS_aclipc)
- syscall_table[SYS_aclipc] = "aclipc";
-#endif
-#if defined (SYS_fdevstat)
- syscall_table[SYS_fdevstat] = "fdevstat";
-#endif
-#if defined (SYS_flvlfile)
- syscall_table[SYS_flvlfile] = "flvlfile";
-#endif
-#if defined (SYS_lvlfile)
- syscall_table[SYS_lvlfile] = "lvlfile";
-#endif
-#if defined (SYS_lvlequal)
- syscall_table[SYS_lvlequal] = "lvlequal";
-#endif
-#if defined (SYS_lvlproc)
- syscall_table[SYS_lvlproc] = "lvlproc";
-#endif
-#if defined (SYS_lvlipc)
- syscall_table[SYS_lvlipc] = "lvlipc";
-#endif
-#if defined (SYS_acl)
- syscall_table[SYS_acl] = "acl";
-#endif
-#if defined (SYS_auditevt)
- syscall_table[SYS_auditevt] = "auditevt";
-#endif
-#if defined (SYS_auditctl)
- syscall_table[SYS_auditctl] = "auditctl";
-#endif
-#if defined (SYS_auditdmp)
- syscall_table[SYS_auditdmp] = "auditdmp";
-#endif
-#if defined (SYS_auditlog)
- syscall_table[SYS_auditlog] = "auditlog";
-#endif
-#if defined (SYS_auditbuf)
- syscall_table[SYS_auditbuf] = "auditbuf";
-#endif
-#if defined (SYS_lvldom)
- syscall_table[SYS_lvldom] = "lvldom";
-#endif
-#if defined (SYS_lvlvfs)
- syscall_table[SYS_lvlvfs] = "lvlvfs";
-#endif
-#if defined (SYS_mkmld)
- syscall_table[SYS_mkmld] = "mkmld";
-#endif
-#if defined (SYS_mldmode)
- syscall_table[SYS_mldmode] = "mldmode";
-#endif
-#if defined (SYS_secadvise)
- syscall_table[SYS_secadvise] = "secadvise";
-#endif
-#if defined (SYS_online)
- syscall_table[SYS_online] = "online";
-#endif
-#if defined (SYS_setitimer)
- syscall_table[SYS_setitimer] = "setitimer";
-#endif
-#if defined (SYS_getitimer)
- syscall_table[SYS_getitimer] = "getitimer";
-#endif
-#if defined (SYS_gettimeofday)
- syscall_table[SYS_gettimeofday] = "gettimeofday";
-#endif
-#if defined (SYS_settimeofday)
- syscall_table[SYS_settimeofday] = "settimeofday";
-#endif
-#if defined (SYS_lwp_create)
- syscall_table[SYS_lwp_create] = "_lwp_create";
-#endif
-#if defined (SYS_lwp_exit)
- syscall_table[SYS_lwp_exit] = "_lwp_exit";
-#endif
-#if defined (SYS_lwp_wait)
- syscall_table[SYS_lwp_wait] = "_lwp_wait";
-#endif
-#if defined (SYS_lwp_self)
- syscall_table[SYS_lwp_self] = "_lwp_self";
-#endif
-#if defined (SYS_lwp_info)
- syscall_table[SYS_lwp_info] = "_lwp_info";
-#endif
-#if defined (SYS_lwp_private)
- syscall_table[SYS_lwp_private] = "_lwp_private";
-#endif
-#if defined (SYS_processor_bind)
- syscall_table[SYS_processor_bind] = "processor_bind";
-#endif
-#if defined (SYS_processor_exbind)
- syscall_table[SYS_processor_exbind] = "processor_exbind";
-#endif
-#if defined (SYS_prepblock)
- syscall_table[SYS_prepblock] = "prepblock";
-#endif
-#if defined (SYS_block)
- syscall_table[SYS_block] = "block";
-#endif
-#if defined (SYS_rdblock)
- syscall_table[SYS_rdblock] = "rdblock";
-#endif
-#if defined (SYS_unblock)
- syscall_table[SYS_unblock] = "unblock";
-#endif
-#if defined (SYS_cancelblock)
- syscall_table[SYS_cancelblock] = "cancelblock";
-#endif
-#if defined (SYS_pread)
- syscall_table[SYS_pread] = "pread";
-#endif
-#if defined (SYS_pwrite)
- syscall_table[SYS_pwrite] = "pwrite";
-#endif
-#if defined (SYS_truncate)
- syscall_table[SYS_truncate] = "truncate";
-#endif
-#if defined (SYS_ftruncate)
- syscall_table[SYS_ftruncate] = "ftruncate";
-#endif
-#if defined (SYS_lwp_kill)
- syscall_table[SYS_lwp_kill] = "_lwp_kill";
-#endif
-#if defined (SYS_sigwait)
- syscall_table[SYS_sigwait] = "sigwait";
-#endif
-#if defined (SYS_fork1)
- syscall_table[SYS_fork1] = "fork1";
-#endif
-#if defined (SYS_forkall)
- syscall_table[SYS_forkall] = "forkall";
-#endif
-#if defined (SYS_modload)
- syscall_table[SYS_modload] = "modload";
-#endif
-#if defined (SYS_moduload)
- syscall_table[SYS_moduload] = "moduload";
-#endif
-#if defined (SYS_modpath)
- syscall_table[SYS_modpath] = "modpath";
-#endif
-#if defined (SYS_modstat)
- syscall_table[SYS_modstat] = "modstat";
-#endif
-#if defined (SYS_modadm)
- syscall_table[SYS_modadm] = "modadm";
-#endif
-#if defined (SYS_getksym)
- syscall_table[SYS_getksym] = "getksym";
-#endif
-#if defined (SYS_lwp_suspend)
- syscall_table[SYS_lwp_suspend] = "_lwp_suspend";
-#endif
-#if defined (SYS_lwp_continue)
- syscall_table[SYS_lwp_continue] = "_lwp_continue";
-#endif
-#if defined (SYS_priocntllst)
- syscall_table[SYS_priocntllst] = "priocntllst";
-#endif
-#if defined (SYS_sleep)
- syscall_table[SYS_sleep] = "sleep";
-#endif
-#if defined (SYS_lwp_sema_wait)
- syscall_table[SYS_lwp_sema_wait] = "_lwp_sema_wait";
-#endif
-#if defined (SYS_lwp_sema_post)
- syscall_table[SYS_lwp_sema_post] = "_lwp_sema_post";
-#endif
-#if defined (SYS_lwp_sema_trywait)
- syscall_table[SYS_lwp_sema_trywait] = "lwp_sema_trywait";
-#endif
-}
-
-/*
-
-LOCAL FUNCTION
-
- procfs_kill_inferior - kill any currently inferior
-
-SYNOPSIS
-
- void procfs_kill_inferior (void)
-
-DESCRIPTION
-
- Kill any current inferior.
-
-NOTES
-
- Kills even attached inferiors. Presumably the user has already
- been prompted that the inferior is an attached one rather than
- one started by gdb. (FIXME?)
-
-*/
-
-static void
-procfs_kill_inferior ()
-{
- target_mourn_inferior ();
-}
-
-/*
-
-LOCAL FUNCTION
-
- unconditionally_kill_inferior - terminate the inferior
-
-SYNOPSIS
-
- static void unconditionally_kill_inferior (struct procinfo *)
-
-DESCRIPTION
-
- Kill the specified inferior.
-
-NOTE
-
- A possibly useful enhancement would be to first try sending
- the inferior a terminate signal, politely asking it to commit
- suicide, before we murder it (we could call that
- politely_kill_inferior()).
-
-*/
-
-static void
-unconditionally_kill_inferior (pi)
- struct procinfo *pi;
-{
- int ppid;
- struct proc_ctl pctl;
-
- ppid = pi->prstatus.pr_ppid;
-
-#ifdef PROCFS_NEED_CLEAR_CURSIG_FOR_KILL
- /* Alpha OSF/1-3.x procfs needs a clear of the current signal
- before the PIOCKILL, otherwise it might generate a corrupted core
- file for the inferior. */
- ioctl (pi->ctl_fd, PIOCSSIG, NULL);
-#endif
-#ifdef PROCFS_NEED_PIOCSSIG_FOR_KILL
- /* Alpha OSF/1-2.x procfs needs a PIOCSSIG call with a SIGKILL signal
- to kill the inferior, otherwise it might remain stopped with a
- pending SIGKILL.
- We do not check the result of the PIOCSSIG, the inferior might have
- died already. */
- {
- struct siginfo newsiginfo;
-
- memset ((char *) &newsiginfo, 0, sizeof (newsiginfo));
- newsiginfo.si_signo = SIGKILL;
- newsiginfo.si_code = 0;
- newsiginfo.si_errno = 0;
- newsiginfo.si_pid = getpid ();
- newsiginfo.si_uid = getuid ();
- ioctl (pi->ctl_fd, PIOCSSIG, &newsiginfo);
- }
-#else /* PROCFS_NEED_PIOCSSIG_FOR_KILL */
- procfs_write_pckill (pi);
-#endif /* PROCFS_NEED_PIOCSSIG_FOR_KILL */
-
- close_proc_file (pi);
-
-/* Only wait() for our direct children. Our grandchildren zombies are killed
- by the death of their parents. */
-
- if (ppid == getpid())
- wait ((int *) 0);
-}
-
-/*
-
-LOCAL FUNCTION
-
- procfs_xfer_memory -- copy data to or from inferior memory space
-
-SYNOPSIS
-
- int procfs_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
- int dowrite, struct target_ops target)
-
-DESCRIPTION
-
- Copy LEN bytes to/from inferior's memory starting at MEMADDR
- from/to debugger memory starting at MYADDR. Copy from inferior
- if DOWRITE is zero or to inferior if DOWRITE is nonzero.
-
- Returns the length copied, which is either the LEN argument or
- zero. This xfer function does not do partial moves, since procfs_ops
- doesn't allow memory operations to cross below us in the target stack
- anyway.
-
-NOTES
-
- The /proc interface makes this an almost trivial task.
- */
-
-static int
-procfs_xfer_memory (memaddr, myaddr, len, dowrite, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int dowrite;
- struct target_ops *target; /* ignored */
-{
- int nbytes = 0;
- struct procinfo *pi;
-
- pi = current_procinfo;
-
- if (lseek(pi->as_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
- {
- if (dowrite)
- {
- nbytes = write (pi->as_fd, myaddr, len);
- }
- else
- {
- nbytes = read (pi->as_fd, myaddr, len);
- }
- if (nbytes < 0)
- {
- nbytes = 0;
- }
- }
- return (nbytes);
-}
-
-/*
-
-LOCAL FUNCTION
-
- procfs_store_registers -- copy register values back to inferior
-
-SYNOPSIS
-
- void procfs_store_registers (int regno)
-
-DESCRIPTION
-
- Store our current register values back into the inferior. If
- REGNO is -1 then store all the register, otherwise store just
- the value specified by REGNO.
-
-NOTES
-
- If we are storing only a single register, we first have to get all
- the current values from the process, overwrite the desired register
- in the gregset with the one we want from gdb's registers, and then
- send the whole set back to the process. For writing all the
- registers, all we have to do is generate the gregset and send it to
- the process.
-
- Also note that the process has to be stopped on an event of interest
- for this to work, which basically means that it has to have been
- run under the control of one of the other /proc ioctl calls and not
- ptrace. Since we don't use ptrace anyway, we don't worry about this
- fine point, but it is worth noting for future reference.
-
- Gdb is confused about what this function is supposed to return.
- Some versions return a value, others return nothing. Some are
- declared to return a value and actually return nothing. Gdb ignores
- anything returned. (FIXME)
-
- */
-
-static void
-procfs_store_registers (regno)
- int regno;
-{
- struct procinfo *pi;
-#ifdef PROCFS_USE_READ_WRITE
- struct greg_ctl greg;
- struct fpreg_ctl fpreg;
-#endif
-
- pi = current_procinfo;
-
-#ifdef PROCFS_USE_READ_WRITE
- if (regno != -1)
- {
- procfs_read_status (pi);
- memcpy ((char *) &greg.gregset,
- (char *) &pi->prstatus.pr_lwp.pr_context.uc_mcontext.gregs,
- sizeof (gregset_t));
- }
- fill_gregset (&greg.gregset, regno);
- greg.cmd = PCSREG;
- write (pi->ctl_fd, &greg, sizeof (greg));
-#else /* PROCFS_USE_READ_WRITE */
- if (regno != -1)
- {
- ioctl (pi->ctl_fd, PIOCGREG, &pi->gregset.gregset);
- }
- fill_gregset (&pi->gregset.gregset, regno);
- ioctl (pi->ctl_fd, PIOCSREG, &pi->gregset.gregset);
-#endif /* PROCFS_USE_READ_WRITE */
-
-#if defined (FP0_REGNUM)
-
- /* Now repeat everything using the floating point register set, if the
- target has floating point hardware. Since we ignore the returned value,
- we'll never know whether it worked or not anyway. */
-
-#ifdef PROCFS_USE_READ_WRITE
- if (regno != -1)
- {
- procfs_read_status (pi);
- memcpy ((char *) &fpreg.fpregset,
- (char *) &pi->prstatus.pr_lwp.pr_context.uc_mcontext.fpregs,
- sizeof (fpregset_t));
- }
- fill_fpregset (&fpreg.fpregset, regno);
- fpreg.cmd = PCSFPREG;
- write (pi->ctl_fd, &fpreg, sizeof (fpreg));
-#else /* PROCFS_USE_READ_WRITE */
- if (regno != -1)
- {
- ioctl (pi->ctl_fd, PIOCGFPREG, &pi->fpregset.fpregset);
- }
- fill_fpregset (&pi->fpregset.fpregset, regno);
- ioctl (pi->ctl_fd, PIOCSFPREG, &pi->fpregset.fpregset);
-#endif /* PROCFS_USE_READ_WRITE */
-
-#endif /* FP0_REGNUM */
-
-}
-
-/*
-
-LOCAL FUNCTION
-
- init_procinfo - setup a procinfo struct and connect it to a process
-
-SYNOPSIS
-
- struct procinfo * init_procinfo (int pid)
-
-DESCRIPTION
-
- Allocate a procinfo structure, open the /proc file and then set up the
- set of signals and faults that are to be traced. Returns a pointer to
- the new procinfo structure.
-
-NOTES
-
- If proc_init_failed ever gets called, control returns to the command
- processing loop via the standard error handling code.
-
- */
-
-static struct procinfo *
-init_procinfo (pid, kill)
- int pid;
- int kill;
-{
- struct procinfo *pi = (struct procinfo *)
- xmalloc (sizeof (struct procinfo));
-
- memset ((char *) pi, 0, sizeof (*pi));
- if (!open_proc_file (pid, pi, O_RDWR, 1))
- proc_init_failed (pi, "can't open process file", kill);
-
- /* open_proc_file may modify pid. */
-
- pid = pi -> pid;
-
- /* Add new process to process info list */
-
- pi->next = procinfo_list;
- procinfo_list = pi;
-
- add_fd (pi); /* Add to list for poll/select */
-
- /* Remember some things about the inferior that we will, or might, change
- so that we can restore them when we detach. */
-#ifdef UNIXWARE
- memcpy ((char *) &pi->saved_trace.sigset,
- (char *) &pi->prstatus.pr_sigtrace, sizeof (sigset_t));
- memcpy ((char *) &pi->saved_fltset.fltset,
- (char *) &pi->prstatus.pr_flttrace, sizeof (fltset_t));
- memcpy ((char *) &pi->saved_entryset.sysset,
- (char *) &pi->prstatus.pr_sysentry, sizeof (sysset_t));
- memcpy ((char *) &pi->saved_exitset.sysset,
- (char *) &pi->prstatus.pr_sysexit, sizeof (sysset_t));
-
- /* Set up trace and fault sets, as gdb expects them. */
-
- prfillset (&sctl.sigset);
- notice_signals (pi, &sctl);
- prfillset (&fctl.fltset);
- prdelset (&fctl.fltset, FLTPAGE);
-
-#else /* ! UNIXWARE */
- ioctl (pi->ctl_fd, PIOCGTRACE, &pi->saved_trace.sigset);
- ioctl (pi->ctl_fd, PIOCGHOLD, &pi->saved_sighold.sigset);
- ioctl (pi->ctl_fd, PIOCGFAULT, &pi->saved_fltset.fltset);
- ioctl (pi->ctl_fd, PIOCGENTRY, &pi->saved_entryset.sysset);
- ioctl (pi->ctl_fd, PIOCGEXIT, &pi->saved_exitset.sysset);
-
- /* Set up trace and fault sets, as gdb expects them. */
-
- memset ((char *) &pi->prrun, 0, sizeof (pi->prrun));
- prfillset (&pi->prrun.pr_trace);
- procfs_notice_signals (pid);
- prfillset (&pi->prrun.pr_fault);
- prdelset (&pi->prrun.pr_fault, FLTPAGE);
-#ifdef PROCFS_DONT_TRACE_FAULTS
- premptyset (&pi->prrun.pr_fault);
-#endif
-#endif /* UNIXWARE */
-
- if (!procfs_read_status (pi))
- proc_init_failed (pi, "procfs_read_status failed", kill);
-
- return pi;
-}
-
-/*
-
-LOCAL FUNCTION
-
- create_procinfo - initialize access to a /proc entry
-
-SYNOPSIS
-
- struct procinfo * create_procinfo (int pid)
-
-DESCRIPTION
-
- Allocate a procinfo structure, open the /proc file and then set up the
- set of signals and faults that are to be traced. Returns a pointer to
- the new procinfo structure.
-
-NOTES
-
- If proc_init_failed ever gets called, control returns to the command
- processing loop via the standard error handling code.
-
- */
-
-static struct procinfo *
-create_procinfo (pid)
- int pid;
-{
- struct procinfo *pi;
- struct sig_ctl sctl;
- struct flt_ctl fctl;
-
- pi = find_procinfo (pid, 1);
- if (pi != NULL)
- return pi; /* All done! It already exists */
-
- pi = init_procinfo (pid, 1);
-
-#ifndef UNIXWARE
-/* A bug in Solaris (2.5 at least) causes PIOCWSTOP to hang on LWPs that are
- already stopped, even if they all have PR_ASYNC set. */
- if (!(pi->prstatus.pr_flags & PR_STOPPED))
-#endif
- if (!procfs_write_pcwstop (pi))
- proc_init_failed (pi, "procfs_write_pcwstop failed", 1);
-
-#ifdef PROCFS_USE_READ_WRITE
- fctl.cmd = PCSFAULT;
- if (write (pi->ctl_fd, (char *) &fctl, sizeof (struct flt_ctl)) < 0)
- proc_init_failed (pi, "PCSFAULT failed", 1);
-#else
- if (ioctl (pi->ctl_fd, PIOCSFAULT, &pi->prrun.pr_fault) < 0)
- proc_init_failed (pi, "PIOCSFAULT failed", 1);
-#endif
-
- return pi;
-}
-
-/*
-
-LOCAL FUNCTION
-
- procfs_exit_handler - handle entry into the _exit syscall
-
-SYNOPSIS
-
- int procfs_exit_handler (pi, syscall_num, why, rtnvalp, statvalp)
-
-DESCRIPTION
-
- This routine is called when an inferior process enters the _exit()
- system call. It continues the process, and then collects the exit
- status and pid which are returned in *statvalp and *rtnvalp. After
- that it returns non-zero to indicate that procfs_wait should wake up.
-
-NOTES
- There is probably a better way to do this.
-
- */
-
-static int
-procfs_exit_handler (pi, syscall_num, why, rtnvalp, statvalp)
- struct procinfo *pi;
- int syscall_num;
- int why;
- int *rtnvalp;
- int *statvalp;
-{
- struct procinfo *temp_pi, *next_pi;
-
- pi->prrun.pr_flags = PRCFAULT;
-
- if (ioctl (pi->ctl_fd, PIOCRUN, &pi->prrun) != 0)
- perror_with_name (pi->pathname);
-
- if (attach_flag)
- {
- /* Claim it exited (don't call wait). */
- if (info_verbose)
- printf_filtered ("(attached process has exited)\n");
- *statvalp = 0;
- *rtnvalp = inferior_pid;
- }
- else
- {
- *rtnvalp = wait (statvalp);
- if (*rtnvalp >= 0)
- *rtnvalp = pi->pid;
- }
-
- /* Close ALL open proc file handles,
- except the one that called SYS_exit. */
- for (temp_pi = procinfo_list; temp_pi; temp_pi = next_pi)
- {
- next_pi = temp_pi->next;
- if (temp_pi == pi)
- continue; /* Handled below */
- close_proc_file (temp_pi);
- }
- return 1;
-}
-
-/*
-
-LOCAL FUNCTION
-
- procfs_exec_handler - handle exit from the exec family of syscalls
-
-SYNOPSIS
-
- int procfs_exec_handler (pi, syscall_num, why, rtnvalp, statvalp)
-
-DESCRIPTION
-
- This routine is called when an inferior process is about to finish any
- of the exec() family of system calls. It pretends that we got a
- SIGTRAP (for compatibility with ptrace behavior), and returns non-zero
- to tell procfs_wait to wake up.
-
-NOTES
- This need for compatibility with ptrace is questionable. In the
- future, it shouldn't be necessary.
-
- */
-
-static int
-procfs_exec_handler (pi, syscall_num, why, rtnvalp, statvalp)
- struct procinfo *pi;
- int syscall_num;
- int why;
- int *rtnvalp;
- int *statvalp;
-{
- *statvalp = (SIGTRAP << 8) | 0177;
-
- return 1;
-}
-
-#if defined(SYS_sproc) && !defined(UNIXWARE)
-/* IRIX lwp creation system call */
-