xnu-1228.15.4.tar.gz

[apple/xnu.git] / bsd / kern / subr_prf.c

diff --git a/bsd/kern/subr_prf.c b/bsd/kern/subr_prf.c
index c184c191e4972eea07b3d1bb2d1b9e4e83295ab4..4a186049678699cee0eff374f3316c6b0fac338f 100644 (file)
--- a/bsd/kern/subr_prf.c
+++ b/bsd/kern/subr_prf.c
@@ -1,14 +1,19 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in

- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.

  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -18,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*-
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*-


@@ -96,6 +101,13 @@
 #include <machine/spl.h>
 #include <libkern/libkern.h>
 
 #include <machine/spl.h>
 #include <libkern/libkern.h>
 

+/* for vaddlog(): the following are implemented in osfmk/kern/printf.c  */
+extern void bsd_log_lock(void);
+extern void bsd_log_unlock(void);
+
+/* Keep this around only because it's exported */
+void _printf(int, struct tty *, const char *, ...);
+

 struct snprintf_arg {
        char *str;
        size_t remain;
 struct snprintf_arg {
        char *str;
        size_t remain;


@@ -109,32 +121,28 @@ struct snprintf_arg {
  */
 extern const char      *panicstr;
 
  */
 extern const char      *panicstr;
 

-extern cnputc();                       /* standard console putc */
-int    (*v_putc)() = cnputc;           /* routine to putc on virtual console */
+extern void cnputc(char);              /* standard console putc */
+void   (*v_putc)(char) = cnputc;       /* routine to putc on virtual console */

 
 extern struct tty cons;                /* standard console tty */
 extern struct  tty *constty;           /* pointer to console "window" tty */
 extern int  __doprnt(const char *fmt,
                                         va_list    *argp,
 
 extern struct tty cons;                /* standard console tty */
 extern struct  tty *constty;           /* pointer to console "window" tty */
 extern int  __doprnt(const char *fmt,
                                         va_list    *argp,

-                                        void       (*putc)(int, void *arg),
+                                        void       (*)(int, void *),

                                         void       *arg,
                                         int        radix);
 
 /*
  *     Record cpu that panic'd and lock around panic data
  */
                                         void       *arg,
                                         int        radix);
 
 /*
  *     Record cpu that panic'd and lock around panic data
  */

-
-static void puts(const char *s, int flags, struct tty *ttyp);

 static void printn(u_long n, int b, int flags, struct tty *ttyp, int zf, int fld_size);
 
 #if    NCPUS > 1
 boolean_t new_printf_cpu_number;  /* do we need to output who we are */
 #endif
 
 static void printn(u_long n, int b, int flags, struct tty *ttyp, int zf, int fld_size);
 
 #if    NCPUS > 1
 boolean_t new_printf_cpu_number;  /* do we need to output who we are */
 #endif
 

-extern void logwakeup();
-extern void halt_cpu();
-extern boot();
-
+extern void logwakeup(void);
+extern void halt_cpu(void);

 
 static void
 snprintf_func(int ch, void *arg);
 
 static void
 snprintf_func(int ch, void *arg);


@@ -154,37 +162,48 @@ static void putchar(int c, void *arg);
 void
 uprintf(const char *fmt, ...)
 {
 void
 uprintf(const char *fmt, ...)
 {

-       register struct proc *p = current_proc();
+       struct proc *p = current_proc();

        struct putchar_args pca;
        va_list ap;
        struct putchar_args pca;
        va_list ap;

+       struct session * sessp;
+       boolean_t fstate;

        
        

+       sessp = proc_session(p);
+
+       fstate = thread_funnel_set(kernel_flock, TRUE);

        pca.flags = TOTTY;
        pca.flags = TOTTY;

-       pca.tty   = (struct tty *)p->p_session->s_ttyp;
+       pca.tty   = (struct tty *)sessp->s_ttyp;

 
 

-       if (p->p_flag & P_CONTROLT && p->p_session->s_ttyvp) {
+       if (p->p_flag & P_CONTROLT && sessp->s_ttyvp) {

                va_start(ap, fmt);
                __doprnt(fmt, &ap, putchar, &pca, 10);
                va_end(ap);
        }
                va_start(ap, fmt);
                __doprnt(fmt, &ap, putchar, &pca, 10);
                va_end(ap);
        }

+       (void) thread_funnel_set(kernel_flock, fstate);
+       session_rele(sessp);

 }
 
 tpr_t
 }
 
 tpr_t

-tprintf_open(p)
-       register struct proc *p;
+tprintf_open(struct proc *p)

 {
 {

-       if (p->p_flag & P_CONTROLT && p->p_session->s_ttyvp) {
-               SESSHOLD(p->p_session);
-               return ((tpr_t) p->p_session);
+       struct session * sessp;
+
+       sessp = proc_session(p);
+
+       if (p->p_flag & P_CONTROLT && sessp->s_ttyvp) {
+               return ((tpr_t)sessp);

        }
        }

+       if (sessp != SESSION_NULL)
+               session_rele(sessp);
+

        return ((tpr_t) NULL);
 }
 
 void
        return ((tpr_t) NULL);
 }
 
 void

-tprintf_close(sess)
-       tpr_t sess;
+tprintf_close(tpr_t sessp)

 {
 {

-       if (sess)
-               SESSRELE((struct session *) sess);
+       if (sessp)
+               session_rele((struct session *) sessp);

 }
 
 /*
 }
 
 /*


@@ -194,13 +213,17 @@ tprintf_close(sess)
 void
 tprintf(tpr_t tpr, const char *fmt, ...)
 {
 void
 tprintf(tpr_t tpr, const char *fmt, ...)
 {

-       register struct session *sess = (struct session *)tpr;
+       struct session *sess = (struct session *)tpr;

        struct tty *tp = NULL;
        int flags = TOLOG;
        va_list ap;
        struct putchar_args pca;
        struct tty *tp = NULL;
        int flags = TOLOG;
        va_list ap;
        struct putchar_args pca;

+       boolean_t fstate;

 
        logpri(LOG_INFO);
 
        logpri(LOG_INFO);

+       /* to protect tty */
+       fstate = thread_funnel_set(kernel_flock, TRUE);
+

        if (sess && sess->s_ttyvp && ttycheckoutq(sess->s_ttyp, 0)) {
                flags |= TOTTY;
                tp = sess->s_ttyp;
        if (sess && sess->s_ttyvp && ttycheckoutq(sess->s_ttyp, 0)) {
                flags |= TOTTY;
                tp = sess->s_ttyp;


@@ -212,6 +235,8 @@ tprintf(tpr_t tpr, const char *fmt, ...)
        __doprnt(fmt, &ap, putchar, &pca, 10);
        va_end(ap);
 
        __doprnt(fmt, &ap, putchar, &pca, 10);
        va_end(ap);
 

+       (void) thread_funnel_set(kernel_flock, fstate);
+

        logwakeup();
 }
 
        logwakeup();
 }
 


@@ -224,8 +249,10 @@ void
 ttyprintf(struct tty *tp, const char *fmt, ...)
 {
        va_list ap;
 ttyprintf(struct tty *tp, const char *fmt, ...)
 {
        va_list ap;

+       boolean_t fstate;

 
        if (tp != NULL) {
 
        if (tp != NULL) {

+               fstate = thread_funnel_set(kernel_flock, TRUE);

                struct putchar_args pca;
                pca.flags = TOTTY;
                pca.tty   = tp;
                struct putchar_args pca;
                pca.flags = TOTTY;
                pca.tty   = tp;


@@ -233,6 +260,7 @@ ttyprintf(struct tty *tp, const char *fmt, ...)
                va_start(ap, fmt);
                __doprnt(fmt, &ap, putchar, &pca, 10);
                va_end(ap);
                va_start(ap, fmt);
                __doprnt(fmt, &ap, putchar, &pca, 10);
                va_end(ap);

+               (void) thread_funnel_set(kernel_flock, fstate);

        }
 }
 
        }
 }
 


@@ -240,8 +268,7 @@ extern      int log_open;
 
 
 void
 
 
 void

-logpri(level)
-       int level;
+logpri(int level)

 {
        struct putchar_args pca;
        pca.flags = TOLOG;
 {
        struct putchar_args pca;
        pca.flags = TOLOG;


@@ -252,38 +279,56 @@ logpri(level)
        putchar('>', &pca);
 }
 
        putchar('>', &pca);
 }
 

-void
-addlog(const char *fmt, ...)
+static void
+_logtime(const char *fmt, ...)

 {
 {

-       register s = splhigh();

        va_list ap;
        va_list ap;

+       va_start(ap, fmt);
+       vaddlog(fmt, ap);
+       va_end(ap);
+}
+
+void
+logtime(time_t secs)
+{
+       _logtime("         0 [Time %ld] [Message ", secs);
+}
+
+int
+vaddlog(const char *fmt, va_list ap)
+{

        struct putchar_args pca;
 
        struct putchar_args pca;
 

-       pca.flags = TOLOG;
+       pca.flags = TOLOGLOCKED;

        pca.tty   = NULL;
 
        pca.tty   = NULL;
 

-       va_start(ap, fmt);
-       __doprnt(fmt, &ap, putchar, &pca, 10);
-       
-       splx(s);

        if (!log_open) {
        if (!log_open) {

-               pca.flags = TOCONS;
-               __doprnt(fmt, &ap, putchar, &pca, 10);
+               pca.flags |= TOCONS;

        }
        }

-       va_end(ap);
+
+       bsd_log_lock();
+       __doprnt(fmt, &ap, putchar, &pca, 10);
+       bsd_log_unlock();
+       

        logwakeup();
        logwakeup();

+       return 0;

 }
 }

-void _printf(int flags, struct tty *ttyp, const char *format, ...)
+
+void
+_printf(int flags, struct tty *ttyp, const char *format, ...)

 {
        va_list ap;
        struct putchar_args pca;
 {
        va_list ap;
        struct putchar_args pca;

+       boolean_t fstate;

 
        pca.flags = flags;
        pca.tty   = ttyp;
 
        pca.flags = flags;
        pca.tty   = ttyp;

+       fstate = thread_funnel_set(kernel_flock, TRUE);

        
        va_start(ap, format);
        __doprnt(format, &ap, putchar, &pca, 10);
        va_end(ap);
        
        va_start(ap, format);
        __doprnt(format, &ap, putchar, &pca, 10);
        va_end(ap);

+       (void) thread_funnel_set(kernel_flock, fstate);

 }
 
 int prf(const char *fmt, va_list ap, int flags, struct tty *ttyp)
 }
 
 int prf(const char *fmt, va_list ap, int flags, struct tty *ttyp)


@@ -321,18 +366,6 @@ int prf(const char *fmt, va_list ap, int flags, struct tty *ttyp)
        return 0;
 }
 
        return 0;
 }
 

-static void puts(const char *s, int flags, struct tty *ttyp)
-{
-       register char c;
-       struct putchar_args pca;
-
-       pca.flags = flags;
-       pca.tty   = ttyp;
-
-       while ((c = *s++))
-               putchar(c, &pca);
-}
-

 /*
  * Printn prints a number n in base b.
  * We don't use recursion to avoid deep kernel stacks.
 /*
  * Printn prints a number n in base b.
  * We don't use recursion to avoid deep kernel stacks.


@@ -340,7 +373,7 @@ static void puts(const char *s, int flags, struct tty *ttyp)
 static void printn(u_long n, int b, int flags, struct tty *ttyp, int zf, int fld_size)
 {
        char prbuf[11];
 static void printn(u_long n, int b, int flags, struct tty *ttyp, int zf, int fld_size)
 {
        char prbuf[11];

-       register char *cp;
+       char *cp;

        struct putchar_args pca;
 
        pca.flags = flags;
        struct putchar_args pca;
 
        pca.flags = flags;


@@ -387,7 +420,6 @@ void
 putchar(int c, void *arg)
 {
        struct putchar_args *pca = arg;
 putchar(int c, void *arg)
 {
        struct putchar_args *pca = arg;

-       register struct msgbuf *mbp;

        char **sp = (char**) pca->tty;
 
        if (panicstr)
        char **sp = (char**) pca->tty;
 
        if (panicstr)


@@ -401,6 +433,8 @@ putchar(int c, void *arg)
                constty = 0;
        if ((pca->flags & TOLOG) && c != '\0' && c != '\r' && c != 0177)
                log_putc(c);
                constty = 0;
        if ((pca->flags & TOLOG) && c != '\0' && c != '\r' && c != 0177)
                log_putc(c);

+       if ((pca->flags & TOLOGLOCKED) && c != '\0' && c != '\r' && c != 0177)
+               log_putc_locked(c);

        if ((pca->flags & TOCONS) && constty == 0 && c != '\0')
                (*v_putc)(c);
        if (pca->flags & TOSTR) {
        if ((pca->flags & TOCONS) && constty == 0 && c != '\0')
                (*v_putc)(c);
        if (pca->flags & TOSTR) {


@@ -409,10 +443,22 @@ putchar(int c, void *arg)
        }
 }
 
        }
 }
 

+int
+vprintf(const char *fmt, va_list ap)
+{
+       struct putchar_args pca;

 
 

+       pca.flags = TOLOG | TOCONS;
+       pca.tty   = NULL;
+       __doprnt(fmt, &ap, putchar, &pca, 10);
+       return 0;
+}

 
 /*
  * Scaled down version of vsprintf(3).
 
 /*
  * Scaled down version of vsprintf(3).

+ *
+ * Deprecation Warning:
+ *     vsprintf() is being deprecated. Please use vsnprintf() instead. 

  */
 int
 vsprintf(char *buf, const char *cfmt, va_list ap)
  */
 int
 vsprintf(char *buf, const char *cfmt, va_list ap)