arch/x86/exception.c

@@ -4,7 +4,7 @@
 #include "interrupt.h"
 #include "irq.h"
 #include "klibc.h"
-#include "kthread.h"
+#include "thread.h"
 #include "vga.h"
 
 exception_handler exception_handler_array[EXCEPTION_NUM] = {

core/kthread.h

@@ -1,47 +0,0 @@
-#pragma once
-
-#include "cpu_context.h"
-#include "mem.h"
-
-#define KTHREAD_NAME_MAX_LENGTH 32
-#define KTHREAD_DEFAULT_STACK_SIZE PAGE_SIZE
-
-
-typedef enum {
-    RUNNING,
-    READY,
-    SLEEPING,
-    WAITING,
-    EXITING
-} kthread_state;
-
-struct thread {
-    char name[KTHREAD_NAME_MAX_LENGTH];
-    struct cpu_state *cpuState;
-    kthread_state state;
-    vaddr_t stackAddr;
-    size_t stackSize;
-    unsigned long jiffiesSleeping;
-    int sleepHaveTimeouted;
-    struct thread *next;
-    struct thread *prev;
-    struct thread*timeNext;
-    struct thread *timePrev;
-};
-
-int kthreadSetup(vaddr_t mainStack, size_t mainStackSize);
-void kthreadExit();
-
-struct thread *kthreadCreate(const char *name, cpu_kstate_function_arg1_t func, void *args);
-void kthreadDelete(struct thread *thread);
-
-struct thread *kthreadSelectNext();
-struct cpu_state *kthreadSwitch(struct cpu_state *prevCpu);
-
-int kthreadYield();
-int kthreadWait(struct thread *current, struct thread *next, unsigned long msec);
-int kthreadUnsched(struct thread *th);
-int kthreadMsleep(unsigned long msec);
-int kthreadOnJieffiesTick();
-struct thread *getCurrentThread();
-int kthreadAddThread(struct thread *th);

core/main.c

@@ -9,7 +9,7 @@
 #include "irq.h"
 #include "keyboard.h"
 #include "klibc.h"
-#include "kthread.h"
+#include "thread.h"
 #include "mem.h"
 #include "mmuContext.h"
 #include "multiboot.h"
@@ -32,7 +32,7 @@ void idleThread(void *arg)
     (void)arg;
     while (1) {
         VGAPrintf(GREEN, BLACK, 0, VGA_HEIGHT - 1, "%d", (jiffies / HZ));
-        kthreadYield();
+        threadYield();
     }
 }
 
@@ -168,8 +168,8 @@ void kmain(unsigned long magic, unsigned long addr)
     cpu_context_subsystem_setup();
 
     printf("[Setup] thread system\n");
-    kthreadSetup(_stack_bottom, (_stack_top - _stack_bottom + 1));
-    kthreadCreate("idle ", idleThread, NULL);
+    threadSetup(_stack_bottom, (_stack_top - _stack_bottom + 1));
+    threadCreate("idle ", idleThread, NULL);
 
     irqSetRoutine(IRQ_TIMER, pit_handler);
 
@@ -187,5 +187,5 @@ void kmain(unsigned long magic, unsigned long addr)
 
     // There is no real caller behind this point
     // So finish this by ourself
-    kthreadExit();
+    threadExit();
 }

core/thread.c

@@ -1,4 +1,4 @@
-#include "kthread.h"
+#include "thread.h"
 #include "alloc.h"
 #include "assert.h"
 #include "irq.h"
@@ -10,14 +10,14 @@
 static struct thread *currentThread;
 static struct thread *threadWithTimeout;
 
-void kthreadExit()
+void threadExit()
 {
     uint32_t flags;
 
     disable_IRQs(flags);
 
     struct thread *current = currentThread;
-    struct thread *next    = kthreadSelectNext();
+    struct thread *next    = threadSelectNext();
 
     if (next == current)
         assert("cannot exit thread");
@@ -25,7 +25,7 @@ void kthreadExit()
     currentThread->state = EXITING;
     currentThread        = next;
     currentThread->state = RUNNING;
-    cpu_context_exit_to(next->cpuState, (cpu_kstate_function_arg1_t *)kthreadDelete,
+    cpu_context_exit_to(next->cpuState, (cpu_kstate_function_arg1_t *)threadDelete,
                         (uint32_t)current);
 
     restore_IRQs(flags);
@@ -33,10 +33,10 @@ void kthreadExit()
     return;
 }
 
-int kthreadSetup(vaddr_t mainStack, size_t mainStackSize)
+int threadSetup(vaddr_t mainStack, size_t mainStackSize)
 {
     struct thread *current = (struct thread *)malloc(sizeof(struct thread));
-    strzcpy(current->name, "[KINIT]", KTHREAD_NAME_MAX_LENGTH);
+    strzcpy(current->name, "[KINIT]", THREAD_NAME_MAX_LENGTH);
     current->stackAddr = mainStack;
     current->stackSize = mainStackSize;
 
@@ -48,31 +48,31 @@ int kthreadSetup(vaddr_t mainStack, size_t mainStackSize)
     return 0;
 }
 
-struct thread *kthreadCreate(const char *name, cpu_kstate_function_arg1_t func, void *args)
+struct thread *threadCreate(const char *name, cpu_kstate_function_arg1_t func, void *args)
 {
     struct thread *thread = (struct thread *)malloc(sizeof(struct thread));
     if (!thread)
         return NULL;
 
-    thread->stackAddr = (vaddr_t)malloc(KTHREAD_DEFAULT_STACK_SIZE);
+    thread->stackAddr = (vaddr_t)malloc(THREAD_DEFAULT_STACK_SIZE);
     if(!thread->stackAddr)
         return NULL;
 #ifdef DEBUG
     printf("Alloc stack at 0x%x struct at 0x%x\n", thread->stackAddr, thread);
 #endif
-    thread->stackSize = KTHREAD_DEFAULT_STACK_SIZE;
+    thread->stackSize = THREAD_DEFAULT_STACK_SIZE;
 
     if (!thread->stackAddr)
         goto free_mem;
 
     if (name)
-        strzcpy(thread->name, name, KTHREAD_NAME_MAX_LENGTH);
+        strzcpy(thread->name, name, THREAD_NAME_MAX_LENGTH);
     else
-        strzcpy(thread->name, "[UNKNOW]", KTHREAD_NAME_MAX_LENGTH);
+        strzcpy(thread->name, "[UNKNOW]", THREAD_NAME_MAX_LENGTH);
 
     if (cpu_kstate_init(&thread->cpuState, (cpu_kstate_function_arg1_t *)func, (vaddr_t)args,
                         thread->stackAddr, thread->stackSize,
-                        (cpu_kstate_function_arg1_t *)kthreadExit, 0))
+                        (cpu_kstate_function_arg1_t *)threadExit, 0))
         goto free_mem;
 
     thread->state = READY;
@@ -87,7 +87,7 @@ free_mem:
     return NULL;
 }
 
-void kthreadDelete(struct thread *thread)
+void threadDelete(struct thread *thread)
 {
     uint32_t flags;
     disable_IRQs(flags);
@@ -101,7 +101,7 @@ void kthreadDelete(struct thread *thread)
     restore_IRQs(flags);
 }
 
-struct thread *kthreadSelectNext()
+struct thread *threadSelectNext()
 {
     struct thread *nextThread;
     int idx;
@@ -114,14 +114,14 @@ struct thread *kthreadSelectNext()
     return currentThread;
 }
 
-struct cpu_state *kthreadSwitch(struct cpu_state *prevCpu)
+struct cpu_state *threadSwitch(struct cpu_state *prevCpu)
 {
     uint32_t flags;
     struct thread *nextThread;
 
     disable_IRQs(flags);
 
-    nextThread              = kthreadSelectNext();
+    nextThread              = threadSelectNext();
     currentThread->cpuState = prevCpu;
     currentThread->state    = READY;
     currentThread           = nextThread;
@@ -132,7 +132,7 @@ struct cpu_state *kthreadSwitch(struct cpu_state *prevCpu)
     return nextThread->cpuState;
 }
 
-int kthreadOnJieffiesTick()
+int threadOnJieffiesTick()
 {
     struct thread *nextThread;
     int idx;
@@ -154,7 +154,7 @@ int kthreadOnJieffiesTick()
             if (!nextThread->jiffiesSleeping) {
                 nextThread->sleepHaveTimeouted = 1;
                 list_delete_named(threadWithTimeout, nextThread, timePrev, timeNext);
-                kthreadAddThread(nextThread);
+                threadAddThread(nextThread);
             }
         }
     }
@@ -162,7 +162,7 @@ int kthreadOnJieffiesTick()
     return 0;
 }
 
-int kthreadUnsched(struct thread *th)
+int threadUnsched(struct thread *th)
 {
     list_delete(currentThread, th);
 
@@ -170,7 +170,7 @@ int kthreadUnsched(struct thread *th)
 }
 
 // Must be called with IRQ disabled
-int kthreadWait(struct thread *current, struct thread *next, unsigned long msec)
+int threadWait(struct thread *current, struct thread *next, unsigned long msec)
 {
     if (current == next) {
         assertmsg(0, "Cannot yield from %s to %s\n", current->name, next->name);
@@ -192,12 +192,12 @@ int kthreadWait(struct thread *current, struct thread *next, unsigned long msec)
     return current->sleepHaveTimeouted;
 }
 
-int kthreadYield()
+int threadYield()
 {
     uint32_t flags;
 
     disable_IRQs(flags);
-    struct thread *next    = kthreadSelectNext();
+    struct thread *next    = threadSelectNext();
     struct thread *current = currentThread;
 
     if (current == next) {
@@ -219,7 +219,7 @@ int kthreadYield()
     return 0;
 }
 
-int kthreadMsleep(unsigned long msec)
+int threadMsleep(unsigned long msec)
 {
     uint32_t flags;
     struct thread *next, *current;
@@ -233,7 +233,7 @@ int kthreadMsleep(unsigned long msec)
     current->state              = SLEEPING;
     current->sleepHaveTimeouted = 0;
     current->jiffiesSleeping    = msecs_to_jiffies(msec);
-    next                        = kthreadSelectNext();
+    next                        = threadSelectNext();
 
     assert(next != current);
     assert(next->state == READY);
@@ -250,7 +250,7 @@ struct thread *getCurrentThread()
     return currentThread;
 }
 
-int kthreadAddThread(struct thread *th)
+int threadAddThread(struct thread *th)
 {
     if (th->state == READY)
         return 0;

core/thread.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include "cpu_context.h"
+#include "mem.h"
+
+#define THREAD_NAME_MAX_LENGTH 32
+#define THREAD_DEFAULT_STACK_SIZE PAGE_SIZE
+
+
+typedef enum {
+    RUNNING,
+    READY,
+    SLEEPING,
+    WAITING,
+    EXITING
+} thread_state;
+
+struct thread {
+    char name[THREAD_NAME_MAX_LENGTH];
+    struct cpu_state *cpuState;
+    thread_state state;
+    vaddr_t stackAddr;
+    size_t stackSize;
+    unsigned long jiffiesSleeping;
+    int sleepHaveTimeouted;
+    struct thread *next;
+    struct thread *prev;
+    struct thread*timeNext;
+    struct thread *timePrev;
+};
+
+int threadSetup(vaddr_t mainStack, size_t mainStackSize);
+void threadExit();
+
+struct thread *threadCreate(const char *name, cpu_kstate_function_arg1_t func, void *args);
+void threadDelete(struct thread *thread);
+
+struct thread *threadSelectNext();
+struct cpu_state *threadSwitch(struct cpu_state *prevCpu);
+
+int threadYield();
+int threadWait(struct thread *current, struct thread *next, unsigned long msec);
+int threadUnsched(struct thread *th);
+int threadMsleep(unsigned long msec);
+int threadOnJieffiesTick();
+struct thread *getCurrentThread();
+int threadAddThread(struct thread *th);

core/wait.c

@@ -1,5 +1,5 @@
 #include "irq.h"
-#include "kthread.h"
+#include "thread.h"
 #include "list.h"
 #include "wait.h"
 
@@ -31,7 +31,7 @@ int wakeUp(struct wait_queue *wq)
     disable_IRQs(flags);
     list_collapse(wq->thread, th)
     {
-        kthreadAddThread(th);
+        threadAddThread(th);
     }
 
     restore_IRQs(flags);
@@ -54,11 +54,11 @@ int waitTimeout(struct wait_queue *wq, unsigned long msec)
 
     current        = getCurrentThread();
     current->state = WAITING;
-    next           = kthreadSelectNext();
-    kthreadUnsched(current);
+    next           = threadSelectNext();
+    threadUnsched(current);
 
     list_add_tail(wq->thread, current);
-    ret = kthreadWait(current, next, msec);
+    ret = threadWait(current, next, msec);
 
     restore_IRQs(flags);
     return ret;

core/wait.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "kthread.h"
+#include "thread.h"
 
 struct wait_queue {
     struct thread *thread;

custom_gdb_extension.py

@@ -39,32 +39,32 @@ class CustomPrettyPrinterLocator(PrettyPrinter):
         if typename is None:
             typename = val.type.name
 
-        if typename == "kthread":
+        if typename == "thread":
             return KthreadPrettyPrinter(val)
 
 
-class KthreadListDumpCmd(gdb.Command):
-    """Prints the kthread list"""
+class threadListDumpCmd(gdb.Command):
+    """Prints the thread list"""
 
     def __init__(self):
-        super(KthreadListDumpCmd, self).__init__(
-            "kthread_list_dump", gdb.COMMAND_USER
+        super(threadListDumpCmd, self).__init__(
+            "thread_list_dump", gdb.COMMAND_USER
         )
 
-    def _kthread_list_to_str(self, val):
+    def _thread_list_to_str(self, val):
         """Walk through the Kthread list.
 
         We will simply follow the 'next' pointers until we encounter the HEAD again
         """
         idx = 0
         head = val
-        kthread_ptr = val
+        thread_ptr = val
         result = ""
-        while kthread_ptr != 0 and (idx == 0 or kthread_ptr != head):
-            result += "\n%d: %s" % (idx, KthreadPrettyPrinter(kthread_ptr).to_string())
-            kthread_ptr = kthread_ptr["next"]
+        while thread_ptr != 0 and (idx == 0 or thread_ptr != head):
+            result += "\n%d: %s" % (idx, KthreadPrettyPrinter(thread_ptr).to_string())
+            thread_ptr = thread_ptr["next"]
             idx += 1
-        result = ("Found a Linked List with %d kthread:" % idx) + result
+        result = ("Found a Linked List with %d thread:" % idx) + result
         return result
 
     def complete(self, text, word):
@@ -77,14 +77,14 @@ class KthreadListDumpCmd(gdb.Command):
         # to do argument parsing
         print("Args Passed: %s" % args)
         if args:
-            kthread_ptr_val = gdb.parse_and_eval(args)
+            thread_ptr_val = gdb.parse_and_eval(args)
         else:
-            kthread_ptr_val = gdb.parse_and_eval("currentThread")
-        if str(kthread_ptr_val.type) != "struct kthread *":
-            print("Expected pointer argument of type (struct kthread *)")
+            thread_ptr_val = gdb.parse_and_eval("currentThread")
+        if str(thread_ptr_val.type) != "struct thread *":
+            print("Expected pointer argument of type (struct thread *)")
             return
 
-        print(self._kthread_list_to_str(kthread_ptr_val))
+        print(self._thread_list_to_str(thread_ptr_val))
 
 
 class PhyMemDescListDumpCmd(gdb.Command):
@@ -175,6 +175,7 @@ class PrintStructC99Cmd(gdb.Command):
             rr_rval = rr_s[1].strip()
             print(' ' * hs + '.' + rr_s[0] + '= ' + rr_rval)
 
+
 class ListDumpCmd(gdb.Command):
     """Prints a linked list"""
 
@@ -190,13 +191,13 @@ class ListDumpCmd(gdb.Command):
         """
         idx = 0
         head = val
-        kthread_ptr = val
+        thread_ptr = val
         result = ""
-        while kthread_ptr != 0 and (idx == 0 or kthread_ptr != head):
-            result += gdb.execute('p *({}){}'.format(str(kthread_ptr.type),kthread_ptr), to_string=True)
-            kthread_ptr = kthread_ptr["next"]
+        while thread_ptr != 0 and (idx == 0 or thread_ptr != head):
+            result += gdb.execute('p *({}){}'.format(str(thread_ptr.type),thread_ptr), to_string=True)
+            thread_ptr = thread_ptr["next"]
             idx += 1
-        result = ("Found a Linked List with %d items:" % idx) + "\n"+ result
+        result = ("Found a Linked List with %d items:" % idx) + "\n" + result
         return result
 
     def complete(self, text, word):
@@ -220,8 +221,9 @@ class ListDumpCmd(gdb.Command):
 
         print(self._print_list(ptr_val))
 
+
 register_pretty_printer(None, CustomPrettyPrinterLocator(), replace=True)
-KthreadListDumpCmd()
+threadListDumpCmd()
 PhyMemDescListDumpCmd()
 PrintStructC99Cmd()
 ListDumpCmd()

drivers/ata.c

@@ -2,7 +2,7 @@
 #include "io.h"
 #include "kernel.h"
 #include "klibc.h"
-#include "kthread.h"
+#include "thread.h"
 
 // from
 // https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/ata/ns-ata-_identify_device_data

drivers/pit.c

@@ -2,7 +2,7 @@
 #include "io.h"
 #include "irq.h"
 #include "klibc.h"
-#include "kthread.h"
+#include "thread.h"
 #include "time.h"
 
 int pitSetup(unsigned int freq)
@@ -20,8 +20,8 @@ int pitSetup(unsigned int freq)
 struct cpu_state *pitIrqHandler(struct cpu_state *prevCpu)
 {
     __atomic_add_fetch(&jiffies, 1, __ATOMIC_RELAXED);
-    kthreadOnJieffiesTick();
+    threadOnJieffiesTick();
     // Uncomment for non-preemptible kernel
     // return prevCpu;
-    return kthreadSwitch(prevCpu);
+    return threadSwitch(prevCpu);
 }

tests/test.c

@@ -4,7 +4,7 @@
 #include "assert.h"
 #include "cpu_context.h"
 #include "klibc.h"
-#include "kthread.h"
+#include "thread.h"
 #include "list.h"
 #include "mem.h"
 #include "mmuContext.h"
@@ -274,7 +274,7 @@ static void kthread1(void *strIn)
     char *str = (char *)strIn;
     for (; *str != '\n'; str++) {
         printf("kth1: %c\n", *str);
-        kthreadYield();
+        threadYield();
     }
 }
 
@@ -283,7 +283,7 @@ static void kthread2(void *strIn)
     char *str = (char *)strIn;
     for (; *str != '\n'; str++) {
         printf("kth2: %c\n", *str);
-        kthreadYield();
+        threadYield();
     }
 }
 
@@ -296,11 +296,11 @@ void sleepThread(void *arg)
     while (secSleep < 5) {
         // printf("Sleeping loop %d\n", secSleep);
         secSleep++;
-        kthreadMsleep(1000);
+        threadMsleep(1000);
     }
     unsigned long ellapsedTime = jiffies_to_msecs(jiffies - initialJiffies);
     assertmsg(ellapsedTime >= 5000 && ellapsedTime < 5100, "ellapsedTime %d\n", ellapsedTime);
-    kthreadMsleep(0);
+    threadMsleep(0);
     printf("I should never be showed\n");
     assert(1);
 }
@@ -315,7 +315,7 @@ void mutThread(void *arg)
     while (test > 0) {
         mutexLock(&mutexTest);
         printf("%s sleep\n", (char *)arg);
-        kthreadMsleep(1000);
+        threadMsleep(1000);
         printf("%s up\n", (char *)arg);
         mutexUnlock(&mutexTest);
         test--;
@@ -336,17 +336,17 @@ void testKthread()
 {
     mutexInit(&mutexTest);
     // It is not expected to have necessarily "Hello world\n" properly written
-    kthreadCreate("Test2", (cpu_kstate_function_arg1_t *)kthread2, (void *)"el ol\n");
-    kthreadCreate("Test1", (cpu_kstate_function_arg1_t *)kthread1, (void *)"Hlowrd\n");
-    kthreadMsleep(1000);
-    kthreadCreate("wq timeout", wqThread, NULL);
-    kthreadMsleep(2000);
+    threadCreate("Test2", (cpu_kstate_function_arg1_t *)kthread2, (void *)"el ol\n");
+    threadCreate("Test1", (cpu_kstate_function_arg1_t *)kthread1, (void *)"Hlowrd\n");
+    threadMsleep(1000);
+    threadCreate("wq timeout", wqThread, NULL);
+    threadMsleep(2000);
     assert(haveTimeout);
-    kthreadCreate("sleep", sleepThread, NULL);
-    kthreadMsleep(5000);
-    kthreadCreate("mtest1", mutThread, "mut1");
-    kthreadCreate("mtest2", mutThread, "mut2");
-    kthreadCreate("mtest3", mutThread, "mut3");
+    threadCreate("sleep", sleepThread, NULL);
+    threadMsleep(5000);
+    threadCreate("mtest1", mutThread, "mut1");
+    threadCreate("mtest2", mutThread, "mut2");
+    threadCreate("mtest3", mutThread, "mut3");
 }
 
 void testATAThread(){
@@ -365,7 +365,7 @@ void testATAThread(){
 }
 
 static void testATA(){
-    kthreadCreate("ATA_TEST", testATAThread, NULL);
+    threadCreate("ATA_TEST", testATAThread, NULL);
     //testATAThread();
 }