From 694838b7069e5cdc22393083ca7b5e2a20187eb5 Mon Sep 17 00:00:00 2001
From: ccli8 <ccli8@nuvoton.com>
Date: Mon, 12 Jun 2017 15:04:30 +0800
Subject: [PATCH] [M487] Guard from initial stack allocated on SPIM CCM memory
 not initialized yet

Not add this guard in IAR toolchain due to its unsupported ILINK syntax
---
 .../TARGET_M480/device/TOOLCHAIN_ARM_MICRO/M487.sct        | 7 ++++++-
 .../TARGET_M480/device/TOOLCHAIN_ARM_STD/M487.sct          | 6 +++++-
 .../TARGET_M480/device/TOOLCHAIN_GCC_ARM/M487.ld           | 5 +++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_MICRO/M487.sct b/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_MICRO/M487.sct
index c191a142c9..95d7b4a61b 100644
--- a/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_MICRO/M487.sct
+++ b/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_MICRO/M487.sct
@@ -8,6 +8,9 @@
   #define MBED_APP_SIZE 0x00080000
 #endif
 
+#define SPIM_CCM_START  0x20020000
+#define SPIM_CCM_END    0x20028000
+
 LR_IROM1 MBED_APP_START {
   ER_IROM1 MBED_APP_START {  ; load address = execution address
    *(RESET, +First)
@@ -34,4 +37,6 @@ LR_IROM1 MBED_APP_START {
 }
 ScatterAssert(LoadLimit(LR_IROM1) <= (MBED_APP_START + MBED_APP_SIZE))  ; 512 KB APROM
 ScatterAssert(ImageLimit(ARM_LIB_HEAP) <= 0x20028000)   ; 160 KB SRAM
-
+ScatterAssert(ImageLimit(ARM_LIB_STACK) <= SPIM_CCM_START)  ; Guard from initial stack allocated on SPIM CCM memory 
+                                                            ; which is not initialized yet
+                                                            
diff --git a/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_STD/M487.sct b/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_STD/M487.sct
index c191a142c9..7fa6e2b8d5 100644
--- a/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_STD/M487.sct
+++ b/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_ARM_STD/M487.sct
@@ -8,6 +8,9 @@
   #define MBED_APP_SIZE 0x00080000
 #endif
 
+#define SPIM_CCM_START  0x20020000
+#define SPIM_CCM_END    0x20028000
+
 LR_IROM1 MBED_APP_START {
   ER_IROM1 MBED_APP_START {  ; load address = execution address
    *(RESET, +First)
@@ -34,4 +37,5 @@ LR_IROM1 MBED_APP_START {
 }
 ScatterAssert(LoadLimit(LR_IROM1) <= (MBED_APP_START + MBED_APP_SIZE))  ; 512 KB APROM
 ScatterAssert(ImageLimit(ARM_LIB_HEAP) <= 0x20028000)   ; 160 KB SRAM
-
+ScatterAssert(ImageLimit(ARM_LIB_STACK) <= SPIM_CCM_START)  ; Guard from initial stack allocated on SPIM CCM memory 
+                                                            ; which is not initialized yet
diff --git a/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_GCC_ARM/M487.ld b/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_GCC_ARM/M487.ld
index a96fdc06c5..e3f6dbaa9b 100644
--- a/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_GCC_ARM/M487.ld
+++ b/targets/TARGET_NUVOTON/TARGET_M480/device/TOOLCHAIN_GCC_ARM/M487.ld
@@ -11,6 +11,8 @@
 #endif 
 
 StackSize = 0x800;
+SPIM_CCM_START = 0x20020000;
+SPIM_CCM_END = 0x20028000;
 
 MEMORY
 {
@@ -171,6 +173,9 @@ SECTIONS
     __StackLimit = ADDR(.stack);
     PROVIDE(__stack = __StackTop);
 
+    /* Guard from initial stack allocated on SPIM CCM memory which is not initialized yet */
+    ASSERT(__StackTop <= SPIM_CCM_START, "SPIM CCM memory not initialized yet for initial stack")
+    
     /* Relocate vector table in SRAM */
     .isr_vector.reloc (NOLOAD) :
     {