Extend stack debug logic to include IDLE and interrupt stacks. Also color the heap as well. Based on suggestions from David Sidrane

arch/sh/src/m16c/chip.h

@@ -272,7 +272,7 @@ extern uint32_t g_idle_topstack; /* Start of the heap */
 
 #ifndef __ASSEMBLY__
 #  if CONFIG_ARCH_INTERRUPTSTACK > 3
-     extern uint16_t g_userstack;
+     extern uint16_t g_intstackbase;
 #  endif
 #endif
 

arch/sh/src/sh1/chip.h

@@ -63,7 +63,7 @@
 
 #ifndef __ASSEMBLY__
 #  if CONFIG_ARCH_INTERRUPTSTACK > 3
-     extern uint32_t g_userstack;
+     extern uint32_t g_intstackbase;
 #  endif
 #endif
 

arch/sh/src/sh1/sh1_dumpstate.c

@@ -172,7 +172,7 @@ void up_dumpstate(void)
   /* Get the limits on the interrupt stack memory */
 
 #if CONFIG_ARCH_INTERRUPTSTACK > 3
-  istackbase = (uint32_t)&g_userstack;
+  istackbase = (uint32_t)&g_intstackbase;
   istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4;
 
   /* Show interrupt stack info */
@@ -196,7 +196,7 @@ void up_dumpstate(void)
        * at the base of the interrupt stack.
        */
 
-      sp = g_userstack;
+      sp = g_intstackbase;
       lldbg("sp:     %08x\n", sp);
     }
 

arch/sh/src/sh1/sh1_vector.S

@@ -411,7 +411,7 @@ _up_vector:
 	.align	2
 #if CONFIG_ARCH_INTERRUPTSTACK > 3
 .Lintstack:
-	.long	_up_stackbase
+	.long	_g_intstackbase
 #endif
 .Ldoirq:
         .long   _up_doirq
@@ -501,7 +501,7 @@ _up_fullcontextrestore:
 	.size	_up_fullcontextrestore, .-_up_fullcontextrestore
 
 /************************************************************************************
- *  Name: up_interruptstack/g_userstack
+ *  Name: g_intstackalloc/g_intstackbase
  *
  * Description:
  *   Shouldn't happen
@@ -511,15 +511,16 @@ _up_fullcontextrestore:
 #if CONFIG_ARCH_INTERRUPTSTACK > 3
 	.bss
 	.align	2
-	.globl	_g_userstack
-	.type	_g_userstack, object
-_up_interruptstack:
+	.globl	_g_intstackalloc
+	.type	_g_intstackalloc, object
+	.globl	_g_intstackbase
+	.type	_g_intstackbase, object
+_g_intstackalloc:
 	.skip	((CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4)
-_g_userstack:
-_up_stackbase:
+_g_intstackbase:
 	.skip	2
-	.size	_g_userstack, 4
-	.size	_up_interruptstack, (CONFIG_ARCH_INTERRUPTSTACK & ~3)
+	.size	_g_intstackbase, 4
+	.size	_g_intstackalloc, (CONFIG_ARCH_INTERRUPTSTACK & ~3)
 #endif
 	.end