From 049904b385eb53310e0d7fc0e681edf65b0d632d Mon Sep 17 00:00:00 2001
From: bernie <bernie@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Mon, 25 Aug 2008 11:23:00 +0000
Subject: [PATCH] proc: Move stack hack from emul.c to proc.c

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@1681 38d2e660-2303-0410-9eaa-f027e97ec537
---
 bertos/emul/emul.cpp | 17 -----------------
 bertos/kern/proc.c   | 28 +++++++++++++++++++++-------
 2 files changed, 21 insertions(+), 24 deletions(-)

diff --git a/bertos/emul/emul.cpp b/bertos/emul/emul.cpp
index e26c680e..9b06fb90 100644
--- a/bertos/emul/emul.cpp
+++ b/bertos/emul/emul.cpp
@@ -50,17 +50,6 @@
 /// The global emulator instance.
 Emulator *emul;
 
-#if CONFIG_KERNEL
-	#include <struct/list.h>
-
-	/// List of process stacks
-	List StackFreeList;
-
-	// HACK: Reserve 64KB of stack space for kernel processes
-	const int NPROC = 8;
-	int stacks[NPROC][(64 * 1024) / sizeof(int)];
-#endif
-
 Emulator::Emulator(int &argc, char **argv) :
 	emulApp(new QApplication(argc, argv)),
 	emulWin(new EmulWin(this))
@@ -95,12 +84,6 @@ extern "C" void emul_init(int *argc, char *argv[])
 	// setup global emulator pointer
 	emul = new Emulator(*argc, argv);
 
-#if CONFIG_KERNEL
-	LIST_INIT(&StackFreeList);
-	for (int i = 0; i < NPROC; i++)
-		ADDTAIL(&StackFreeList, (Node *)stacks[i]);
-#endif
-
 	MOD_INIT(emul);
 }
 
diff --git a/bertos/kern/proc.c b/bertos/kern/proc.c
index b49c87f3..6bd5fdf4 100644
--- a/bertos/kern/proc.c
+++ b/bertos/kern/proc.c
@@ -44,6 +44,7 @@
 #include "cfg/cfg_arch.h"  /* ARCH_EMUL */
 #include "cfg/cfg_kern.h"
 #include <cfg/module.h>
+#include <cfg/depend.h>    // CONFIG_DEPEND()
 
 #include <cpu/irq.h>
 #include <cpu/types.h>
@@ -52,10 +53,10 @@
 
 #include <string.h>           /* memset() */
 
-// FIXME: move somewhere
-#define CONFIG_DEPEND(FEATURE, DEPS)  STATIC_ASSERT(!(FEATURE) || !!(DEPS))
-
-CONFIG_DEPEND(CONFIG_KERN_PRI, CONFIG_KERN_PREEMPT);
+// Check config dependencies
+CONFIG_DEPEND(CONFIG_KERN_SIGNALS,    CONFIG_KERN_SCHED);
+CONFIG_DEPEND(CONFIG_KERN_SEMAPHORES, CONFIG_KERN_SIGNALS);
+CONFIG_DEPEND(CONFIG_KERN_MONITOR,    CONFIG_KERN_SCHED);
 
 
 /*
@@ -75,11 +76,16 @@ REGISTER Process *CurrentProcess;
 
 #if (ARCH & ARCH_EMUL)
 /*
- * In hosted environments, we must emulate the stack on the real process stack.
+ * In some hosted environments, we must emulate the stack on the real
+ * process stack to satisfy consistency checks in system libraries and
+ * because some ABIs place trampolines on the stack.
  *
  * Access to this list must be protected by PROC_ATOMIC().
  */
-extern List StackFreeList;
+List StackFreeList;
+
+#define NPROC 8
+cpustack_t proc_stacks[NPROC][(64 * 1024) / sizeof(cpustack_t)];
 #endif
 
 /** The main process (the one that executes main()). */
@@ -110,6 +116,12 @@ void proc_init(void)
 {
 	LIST_INIT(&ProcReadyList);
 
+#if ARCH & ARCH_EMUL
+	LIST_INIT(&StackFreeList);
+	for (int i = 0; i < NPROC; i++)
+		ADDTAIL(&StackFreeList, (Node *)proc_stacks[i]);
+#endif
+
 	/*
 	 * We "promote" the current context into a real process. The only thing we have
 	 * to do is create a PCB and make it current. We don't need to setup the stack
@@ -130,7 +142,6 @@ void proc_init(void)
 	MOD_INIT(proc);
 }
 
-
 /**
  * Create a new process, starting at the provided entry point.
  *
@@ -270,6 +281,8 @@ void proc_rename(struct Process *proc, const char *name)
 #endif
 }
 
+
+#if CONFIG_KERN_PRI
 /**
  * Change the scheduling priority of a process.
  *
@@ -303,6 +316,7 @@ void proc_setPri(struct Process *proc, int pri)
 				//pric_permit();
 		}
 }
+#endif // CONFIG_KERN_PRI
 
 /**
  * Terminate the current process
-- 
2.25.1