From c0758a3d1053010f2c6f122365acde3efda2ba77 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@mutabah.net>
Date: Fri, 10 Dec 2010 19:04:38 +0800
Subject: [PATCH] Through many hacks, AcessNative now compiles

- Still doesn't do anything
---
 AcessNative/acesskernel_src/include/arch.h |  4 +-
 AcessNative/acesskernel_src/main.c         | 31 +++++++
 AcessNative/acesskernel_src/threads.c      | 98 ++++++++++++++++++++++
 3 files changed, 132 insertions(+), 1 deletion(-)

diff --git a/AcessNative/acesskernel_src/include/arch.h b/AcessNative/acesskernel_src/include/arch.h
index e9857890..d67b6734 100644
--- a/AcessNative/acesskernel_src/include/arch.h
+++ b/AcessNative/acesskernel_src/include/arch.h
@@ -5,6 +5,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+#include <pthread.h>
 
 #define	_MODULE_NAME_	"NativeKernel"
 
@@ -27,7 +28,8 @@ typedef intptr_t	tPAddr;
 
 struct sShortSpinlock
 {
-	 int	Lock;
+	 int	IsValid;
+	pthread_mutex_t	Mutex;
 };
 
 #define SHORTLOCK(...)
diff --git a/AcessNative/acesskernel_src/main.c b/AcessNative/acesskernel_src/main.c
index 93127408..1dcf61a7 100644
--- a/AcessNative/acesskernel_src/main.c
+++ b/AcessNative/acesskernel_src/main.c
@@ -7,6 +7,7 @@
 #include <acess.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/time.h>
 
 int main(int argc, char *argv[])
 {
@@ -41,6 +42,22 @@ void Warning(const char *Fmt, ...)
 	printf("\n");
 }
 
+void Panic(const char *Format, ...)
+{
+	va_list	args;
+	printf("Panic: ");
+	va_start(args, Format);
+	vprintf(Format, args);
+	va_end(args);
+	printf("\n");
+	exit(-1);
+}
+
+void Debug_SetKTerminal(const char *Path)
+{
+	// Ignored, kernel debug goes to stdout
+}
+
 void *Heap_Allocate(int Count, const char *File, int Line)
 {
 	return malloc(Count);
@@ -55,3 +72,17 @@ Uint MM_GetFlags(tVAddr VAddr)
 {
 	return 0;
 }
+
+int Modules_InitialiseBuiltin(const char *Name)
+{
+	return 0;	// Ignored
+}
+
+Sint64 now(void)
+{
+	struct timeval tv;
+	struct timezone tz;
+	gettimeofday(&tv, &tz);
+	return tv.tv_sec * 1000 + tv.tv_usec/1000;
+}
+
diff --git a/AcessNative/acesskernel_src/threads.c b/AcessNative/acesskernel_src/threads.c
index f7e1cb83..5f29f760 100644
--- a/AcessNative/acesskernel_src/threads.c
+++ b/AcessNative/acesskernel_src/threads.c
@@ -5,12 +5,28 @@
  * threads.c
  * - Thread and process handling
  */
+#define _SIGNAL_H_
+#undef CLONE_VM	// Such a hack
 #include <acess.h>
+#include <unistd.h>
+#include <stdint.h>
+#include "/usr/include/signal.h"
 
 // === STRUCTURES ===
+#if 0
+typedef struct sState
+{
+	void	*CurState;
+	Uint	SP, BP, IP;
+}	tState;
+#endif
+
 typedef struct sThread
 {
 	struct sThread	*Next;
+
+	 int	KernelTID;
+
 	tTID	TID, PID;
 	tUID	UID, GID;
 
@@ -18,6 +34,11 @@ typedef struct sThread
 
 	char	*ThreadName;
 
+	 int	State;	// 0: Dead, 1: Active, 2: Paused, 3: Asleep
+	#if 0
+	tState	CurState;
+	#endif
+
 	// Config?
 	Uint	Config[NUM_CFG_ENTRIES];
 }	tThread;
@@ -27,6 +48,17 @@ tThread	*gpThreads;
 __thread tThread	*gpCurrentThread;
 
 // === CODE ===
+tThread	*Threads_GetThread(int TID)
+{
+	tThread	*thread;
+	for( thread = gpThreads; thread; thread = thread->Next )
+	{
+		if( thread->TID == TID )
+			return thread;
+	}
+	return NULL;
+}
+
 tUID Threads_GetUID() { return gpCurrentThread->UID; }
 tGID Threads_GetGID() { return gpCurrentThread->GID; }
 tTID Threads_GetTID() { return gpCurrentThread->TID; }
@@ -36,3 +68,69 @@ Uint *Threads_GetCfgPtr(int Index)
 {
 	return &gpCurrentThread->Config[Index];
 }
+
+void Threads_Sleep(void)
+{
+	pause();
+}
+
+void Threads_Yield(void)
+{
+//	yield();
+}
+
+int Threads_WakeTID(tTID TID)
+{
+	tThread	*thread;
+	thread = Threads_GetThread(TID);
+	if( !thread )	return -1;
+	kill( thread->KernelTID, SIGUSR1 );
+	return 0;
+}
+
+void Mutex_Acquire(tMutex *Mutex)
+{
+	if(!Mutex->Protector.IsValid) {
+		pthread_mutex_init( &Mutex->Protector.Mutex, NULL );
+		Mutex->Protector.IsValid = 1;
+	}
+	pthread_mutex_lock( &Mutex->Protector.Mutex );
+}
+
+void Mutex_Release(tMutex *Mutex)
+{
+	pthread_mutex_unlock( &Mutex->Protector.Mutex );
+}
+
+#if 0
+void Threads_Sleep()
+{
+	gpCurrentThread->State = 3;
+	if( setjmp(&gpCurrentThread->CurState) == 0 ) {
+		// Return to user wait
+		// Hmm... maybe I should have a "kernel" thread for every "user" thread
+	}
+	else {
+		// Just woken up, return
+		return ;
+	}
+}
+
+int SaveState(tState *To)
+{
+	Uint	ip;
+	__asm__ __volatile__(
+		"call 1f;\n\t"
+		"1f:\n\t"
+		"pop %%eax"
+		: "=a" (ip)
+		: );
+	// If we just returned
+	if(!ip)	return 1;
+
+	To->IP = ip;
+	__asm__ __volatile__ ("mov %%esp, %1" : "=r"(To->SP));
+	__asm__ __volatile__ ("mov %%ebp, %1" : "=r"(To->BP));
+}
+#endif
+
-- 
2.20.1