[PATCH] sim: syscall: simplify unknown syscall trace

[Mike Frysinger <vapier@gentoo.org>]

Since we always include the raw syscall number when tracing, also
including it in the name when it's unknown is redundant.  Simplify
the code by using a constant string.

Committed.
---
 sim/common/ChangeLog     | 5 +++++
 sim/common/sim-syscall.c | 7 ++-----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index afc1b3a..ecbaad1 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,5 +1,10 @@
 2015-06-18  Mike Frysinger  <vapier@gentoo.org>
 
+	* sim-syscall.c (sim_syscall_multi): Change unknown_syscall to a
+	constant string.
+
+2015-06-18  Mike Frysinger  <vapier@gentoo.org>
+
 	* callback.c (cb_target_map_entry, cb_host_map_entry): Change map to
 	m for sentinel testing.
 
diff --git a/sim/common/sim-syscall.c b/sim/common/sim-syscall.c
index 6f4c8a3..ff5e5d2 100644
--- a/sim/common/sim-syscall.c
+++ b/sim/common/sim-syscall.c
@@ -60,7 +60,7 @@ sim_syscall_multi (SIM_CPU *cpu, int func, long arg1, long arg2, long arg3,
   SIM_DESC sd = CPU_STATE (cpu);
   host_callback *cb = STATE_CALLBACK (sd);
   CB_SYSCALL sc;
-  char unknown_syscall[30];
+  const char unknown_syscall[] = "<UNKNOWN SYSCALL>";
   const char *syscall;
 
   CB_SYSCALL_INIT (&sc);
@@ -85,10 +85,7 @@ sim_syscall_multi (SIM_CPU *cpu, int func, long arg1, long arg2, long arg3,
 
   syscall = cb_target_str_syscall (cb, func);
   if (!syscall)
-    {
-      sprintf (unknown_syscall, "syscall_%i", func);
-      syscall = unknown_syscall;
-    }
+    syscall = unknown_syscall;
 
   if (sc.result == -1)
     TRACE_SYSCALL (cpu, "%s[%i](%#lx, %#lx, %#lx) = %li (error = %s[%i])",
-- 
2.4.1