[src/trunk]: src/external/cddl/osnet/dev/systrace use the alternate syscall n...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a4be2b597740
branches:  trunk
changeset: 810812:a4be2b597740
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Sep 24 14:26:44 2015 +0000

description:
use the alternate syscall names if available

diffstat:

 external/cddl/osnet/dev/systrace/systrace.c |  15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diffs (54 lines):

diff -r 2c232037d284 -r a4be2b597740 external/cddl/osnet/dev/systrace/systrace.c
--- a/external/cddl/osnet/dev/systrace/systrace.c       Thu Sep 24 14:26:09 2015 +0000
+++ b/external/cddl/osnet/dev/systrace/systrace.c       Thu Sep 24 14:26:44 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: systrace.c,v 1.7 2015/03/10 12:17:50 christos Exp $    */
+/*     $NetBSD: systrace.c,v 1.8 2015/09/24 14:26:44 christos Exp $    */
 
 /*
  * CDDL HEADER START
@@ -63,19 +63,23 @@
 
 #ifndef NATIVE
 extern const char      * const CONCAT(emulname,_syscallnames)[];
+extern const char      * const CONCAT(alt,CONCAT(emulname,_syscallnames))[];
 extern         struct sysent   CONCAT(emulname,_sysent)[];
 #define        MODNAME         CONCAT(dtrace_syscall_,emulname)
 #define        MODDEP          "dtrace_syscall,compat_" STRING(emulname)
 #define        MAXSYSCALL      CONCAT(EMULNAME,_SYS_MAXSYSCALL)
 #define        SYSCALLNAMES    CONCAT(emulname,_syscallnames)
+#define        ALTSYSCALLNAMES CONCAT(alt,CONCAT(emulname,_syscallnames))
 #define        SYSENT          CONCAT(emulname,_sysent)
 #define        PROVNAME        STRING(emulname) "_syscall"
 #else
 extern const char      * const syscallnames[];
+extern const char      * const altsyscallnames[];
 #define        MODNAME         dtrace_syscall
 #define        MODDEP          "dtrace"
 #define        MAXSYSCALL      SYS_MAXSYSCALL
 #define        SYSCALLNAMES    syscallnames
+#define        ALTSYSCALLNAMES altsyscallnames
 #define        SYSENT          sysent
 #define        PROVNAME        "syscall"
 #endif
@@ -181,15 +185,16 @@
                return;
 
        for (i = 0; i < MAXSYSCALL; i++) {
-               if (dtrace_probe_lookup(systrace_id, NULL,
-                   SYSCALLNAMES[i], "entry") != 0)
+               const char *name = ALTSYSCALLNAMES[i] ? ALTSYSCALLNAMES[i] :
+                   SYSCALLNAMES[i];
+               if (dtrace_probe_lookup(systrace_id, NULL, name, "entry") != 0)
                        continue;
 
                (void) dtrace_probe_create(systrace_id, NULL,
-                   SYSCALLNAMES[i], "entry", SYSTRACE_ARTIFICIAL_FRAMES,
+                   name, "entry", SYSTRACE_ARTIFICIAL_FRAMES,
                    (void *)(intptr_t)SYSTRACE_ENTRY(i));
                (void) dtrace_probe_create(systrace_id, NULL,
-                   SYSCALLNAMES[i], "return", SYSTRACE_ARTIFICIAL_FRAMES,
+                   name, "return", SYSTRACE_ARTIFICIAL_FRAMES,
                    (void *)(intptr_t)SYSTRACE_RETURN(i));
        }
 }