removed trailing whitespaces

kinclude/boot.S

@@ -43,7 +43,7 @@ _start:
 
             // jump to init
             jal     init
-            
+
             // halt machine after returning from init
             li      t0, -1
             csrw    CSR_HALT, t0
@@ -130,10 +130,10 @@ memset:
 
 // write a0 to memory starting at a1, until a2 (both must be four byte aligned)
 // this uses a loop which writes 32 (numbytes) bytes at a time
-// to prevent overshooting the end, we first calulate how many instructions to 
+// to prevent overshooting the end, we first calulate how many instructions to
 // skip of the first iteration of the loop. this way, (a2 - a1) is a multiple of
-// (numbytes) when we reach the blt instruction for the first time. 
+// (numbytes) when we reach the blt instruction for the first time.
-// this math works so good, because we write 4 bytes of mem, in 4 bytes of 
+// this math works so good, because we write 4 bytes of mem, in 4 bytes of
 // instructions. Therefore instruction bytes to skip = write bytes to skip
 // bytes to skip = numbytes - ((a2 - a1) % numbytes)
 memset:
@@ -149,7 +149,7 @@ memset:
             auipc   t1, 0           // get current address
             add     t1, t2, t1      // add calulated offset
             jalr    zero, t1, 12    // skip the instructions by forward-jumping
-                                    // the 12 is added to compensate for the 
+                                    // the 12 is added to compensate for the
                                     // three instructions auipc, add, jalr
 1:
             sw      a0, 0(a1)

kinclude/csr.c

@@ -12,7 +12,7 @@ void write_mtimecmp(unsigned long long int mtimecmp) {
     __asm__(
         "li t0, %0\n"
         "sw %1, 0(t0)\n"
-        "sw %2, 4(t0)" :: 
+        "sw %2, 4(t0)" ::
         "i"(TIMECMP_MEM_ADDR), "r"(lo), "r"(hi)
     );
 }
@@ -24,7 +24,7 @@ void write_mtimecmp(unsigned long long int mtimecmp) {
     unsigned int higher = mtimecmp >> 32;
     __asm__(
         "csrw %0, %2\n"
-        "csrw %1, %3" :: 
+        "csrw %1, %3" ::
         "I"(CSR_MTIMECMP),"I"(CSR_MTIMECMPH),
         "r"(lower), "r"(higher)
     );

kinclude/ktypes.h

@@ -63,7 +63,7 @@ enum pcb_struct_registers {
 
 /* This struct holds information about binaries which are currently loaded into
  * memory. Currently the kernel is not able to load binaries into memory, as
- * no file system layer is implemented. When the memory image is built, the 
+ * no file system layer is implemented. When the memory image is built, the
  * list of loaded binaries is populated aswell.
  */
 typedef struct loaded_binary {
@@ -76,7 +76,7 @@ typedef struct loaded_binary {
 /*
  * Optionals
  *
- * in this kernel, an optional can hold a value or an error, but we can't use 
+ * in this kernel, an optional can hold a value or an error, but we can't use
  * unions here because we need to be able to distinguish errors from results.
  * this is a little space inefficient, but we'll have to deal with this, or else
  * we get global errno variables.

kinclude/malloc.c

@@ -16,7 +16,7 @@ void malloc_init(malloc_info* given_info)
 optional_voidptr malloc_stack(size_t size)
 {
     void* new_alloc_end = (void*) (((int) allocate_memory_end) - size);
-    if (new_alloc_end < global_malloc_info.allocate_memory_start) 
+    if (new_alloc_end < global_malloc_info.allocate_memory_start)
         return (optional_voidptr) { .error = ENOMEM };
     void* stack_top = allocate_memory_end;
     allocate_memory_end = new_alloc_end;

kinclude/sched.c

@@ -70,7 +70,7 @@ ProcessControlBlock* scheduler_select_free()
         while (pcb != current_process) {
             if (pcb->status == PROC_RDY)
                 return pcb;
-            
+
             if (pcb->status == PROC_WAIT_SLEEP) {
                 if (pcb->asleep_until < mtime) {
                     return pcb;
@@ -97,7 +97,7 @@ ProcessControlBlock* scheduler_select_free()
         }
 
         if (timeout_available == false) {
-            // either process deadlock or no processes alive. 
+            // either process deadlock or no processes alive.
             //TODO: handle missing executable thread
             dbgln("No thread active!", 17);
             HALT(22);
@@ -185,7 +185,7 @@ optional_pcbptr find_available_pcb_slot() {
     int start_index = index;
     ProcessControlBlock* pcb = processes + index;
 
-    while (pcb->status != PROC_DEAD) {        
+    while (pcb->status != PROC_DEAD) {
         index = (index + 1) % PROCESS_COUNT;
         if (index == start_index)
             return (optional_pcbptr) { .error = ENOBUFS };
@@ -288,7 +288,7 @@ void kill_child_processes(ProcessControlBlock* pcb)
 {
     for (int i = 0; i < PROCESS_COUNT; i++) {
         ProcessControlBlock* proc = processes + i;
-        if (proc->parent != pcb) 
+        if (proc->parent != pcb)
             continue;
 
         proc->status = PROC_DEAD;

kinclude/sched.h

@@ -18,6 +18,7 @@ int* get_current_process_registers();
 ProcessControlBlock* get_current_process();
 void mark_ecall_entry();
 
+// process creation / destruction
 optional_pcbptr create_new_process(loaded_binary*, int);
 optional_pcbptr create_new_thread(ProcessControlBlock*, void*, void*, int);
 void kill_child_processes(ProcessControlBlock* pcb);