Changeset 469 for trunk/kernel/syscalls/sys_sem.c

Timestamp:

Aug 20, 2018, 1:04:16 PM (6 years ago)

Author:

alain

Message:

1) Introduce the libsemaphore library.
2) Introduce a small libmath library, required by the "fft" application..
3) Introduce the multithreaded "fft" application.
4) Fix a bad synchronisation bug in the Copy-On-Write mechanism.

File:

• trunk/kernel/syscalls/sys_sem.c (modified) (8 diffs)

trunk/kernel/syscalls/sys_sem.c

@@ -74 +74 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : unmapped semaphore pointer %x / thread %x in process %x\n",
-__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid );
+printk("\n[ERROR] in %s : unmapped semaphore pointer %x / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 vmm_display( process , false );
 #endif
@@ -97 +97 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : cannot create semaphore / thread %x in process %x\n",
-__FUNCTION__, this->trdid, process->pid );
+printk("\n[ERROR] in %s INIT: cannot create semaphore / thread %x in process %x / cycle %d\n",
+__FUNCTION__, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 #endif
                 this->errno = ENOMEM;
@@ -115 +115 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : unmapped buffer for current value %x / thread %x in process %x\n",
-__FUNCTION__ , (intptr_t)current_value, this->trdid, process->pid );
+printk("\n[ERROR] in %s GETVALUE: unmapped target buffer %x / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , (intptr_t)current_value, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 vmm_display( process , false );
 #endif
@@ -131 +131 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : semaphore %x not registered / thread %x in process %x\n",
-__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid );
+printk("\n[ERROR] in %s GETVALUE: semaphore %x not found / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 #endif
                 this->errno = EINVAL;
@@ -157 +157 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : semaphore %x not registered / thread %x in process %x\n",
-__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid );
+printk("\n[ERROR] in %s WAIT: semaphore %x not found / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
+vmm_display( process , true );
 #endif
                 this->errno = EINVAL;
@@ -180 +181 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : semaphore %x not registered / thread %x in process %x\n",
-__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid );
+printk("\n[ERROR] in %s POST: semaphore %x not found / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 #endif
                 this->errno = EINVAL;
@@ -203 +204 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : semaphore %x not registered / thread %x in process %x\n",
-__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid );
+printk("\n[ERROR] in %s DESTROY: semaphore %x not found / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , (intptr_t)vaddr, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 #endif
                 this->errno = EINVAL;
@@ -220 +221 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : undefined operation type %d / thread %x in process %x\n",
-__FUNCTION__ , operation, this->trdid, process->pid );
+printk("\n[ERROR] in %s : undefined operation type %d / thread %x in process %x / cycle %d\n",
+__FUNCTION__ , operation, this->trdid, process->pid, (uint32_t)hal_get_cycles() );
 #endif
             this->errno = EINVAL;