Changeset 670 for trunk/kernel/syscalls/sys_trace.c

Timestamp:

Nov 19, 2020, 11:45:52 PM (4 years ago)

Author:

alain

Message:

1) Introduce up to 4 command lines arguments in the KSH "load" command.
These arguments are transfered to the user process through the
argc/argv mechanism, using the user space "args" vseg.

2) Introduce the named and anonymous "pipes", for inter-process communication
through the pipe() and mkfifo() syscalls.

3) Introduce the "chat" application to validate the two above mechanisms.

4) Improve printk() and assert() fonctions in printk.c.

File:

• trunk/kernel/syscalls/sys_trace.c (modified) (4 diffs)

trunk/kernel/syscalls/sys_trace.c

@@ -38 +38 @@
 
     thread_t  * this    = CURRENT_THREAD;
-    process_t * process = this->process;
 
-#if (DEBUG_SYS_TRACE || CONFIG_INSTRUMENTATION_SYSCALLS)
-uint64_t     tm_start = hal_get_cycles();
+#if DEBUG_SYS_TRACE || DEBUG_SYSCALLS_ERROR || CONFIG_INSTRUMENTATION_SYSCALLS
+process_t * process  = this->process;
+uint64_t    tm_start = hal_get_cycles();
 #endif
 
@@ -55 +55 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : illegal cxy argument %x / thread %x / process %x\n",
-__FUNCTION__ , cxy , this->trdid , process->pid );
+if( DEBUG_SYSCALLS_ERROR < (uint32_t)tm_start )
+printk("\n[ERROR] in %s : thread[%x,%x] / illegal cxy argument %x\n",
+__FUNCTION__ , this->trdid , process->pid , cxy );
 #endif
         this->errno = EINVAL;
@@ -68 +69 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : illegal lid argument %x / thread %x / process %x\n",
-__FUNCTION__ , lid , this->trdid , process->pid );
+if( DEBUG_SYSCALLS_ERROR < (uint32_t)tm_start )
+printk("\n[ERROR] in %s : thread[%x,%x] / illegal lid argument %x\n",
+__FUNCTION__ , this->trdid , process->pid , lid );
 #endif
         this->errno = EINVAL;
@@ -100 +102 @@
 hal_atomic_add( &syscalls_occurences[SYS_TRACE] , 1 );
 #endif
+
     return 0;