diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_ARM_STD/SAMD21G18A.sct b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_ARM_STD/SAMD21G18A.sct
index 7fda6ed398..61cc8b5128 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_ARM_STD/SAMD21G18A.sct
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_ARM_STD/SAMD21G18A.sct
@@ -1,7 +1,14 @@
+#! armcc -E
+
 ;SAMD21G18A
 ;256KB FLASH (0x40000) @ 0x000000000
 ;2KB RAM (0x8000) @ 0x20000000
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+  #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+#define Stack_Size MBED_BOOT_STACK_SIZE
 
 ;SAMD21G18A: 256KB FLASH (0x40000) + 32KB RAM (0x8000)
 LR_IROM1 0x00000000 0x40000  {    ; load region size_region
@@ -15,5 +22,6 @@ LR_IROM1 0x00000000 0x40000  {    ; load region size_region
     RW_IRAM1 (0x20000000+0xB8) (0x8000-0xB8)  {  ; RW data
         .ANY (+RW +ZI)
     }
-
+    ARM_LIB_STACK 0x20000000+0x8000 EMPTY -Stack_Size { ; Stack region growing down
+    }
 }
\ No newline at end of file
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_GCC_ARM/samd21g18a.ld b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_GCC_ARM/samd21g18a.ld
index 21334d715a..7c1a79b9b2 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_GCC_ARM/samd21g18a.ld
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21G18A/device/TOOLCHAIN_GCC_ARM/samd21g18a.ld
@@ -2,15 +2,18 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+    #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+STACK_SIZE = MBED_BOOT_STACK_SIZE;
+
 /* Memory Spaces Definitions */
 MEMORY {
     rom (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00040000
         ram (rwx) : ORIGIN = 0x20000000 + 0xB8, LENGTH = 0x00008000 - 0xB8
     }
 
-    /* The stack size used by the application. NOTE: you need to adjust according to your application. */
-    STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
-
     /* Section Definitions */
     SECTIONS {
 .text :
@@ -114,5 +117,10 @@ MEMORY {
         _estack = .;
     } > ram
 
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(ram) + LENGTH(ram);
+    __StackLimit = __StackTop - STACK_SIZE;
+
     . = ALIGN(8);
 }
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_ARM_STD/SAMD21J18A.sct b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_ARM_STD/SAMD21J18A.sct
index 49ff53cda2..ad1df9d8cd 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_ARM_STD/SAMD21J18A.sct
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_ARM_STD/SAMD21J18A.sct
@@ -1,7 +1,14 @@
+#! armcc -E
+
 ;SAMD21J18A
 ;256KB FLASH (0x40000) @ 0x000000000
 ;2KB RAM (0x8000) @ 0x20000000
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+  #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+#define Stack_Size MBED_BOOT_STACK_SIZE
 
 ;SAMD21J18A: 256KB FLASH (0x40000) + 32KB RAM (0x8000)
 LR_IROM1 0x00000000 0x40000  {    ; load region size_region
@@ -12,8 +19,9 @@ LR_IROM1 0x00000000 0x40000  {    ; load region size_region
     }
 
     ; [RAM] Vector table dynamic copy: 45 vectors * 4 bytes = (0xB4+0x4) 8-byte alignment
-    RW_IRAM1 (0x20000000+0xB8) (0x8000-0xB8)  {  ; RW data
+    RW_IRAM1 (0x20000000+0xB8) (0x8000-0xB8-Stack_Size)  {  ; RW data
         .ANY (+RW +ZI)
     }
-
+    ARM_LIB_STACK 0x20000000+0x8000 EMPTY -Stack_Size { ; Stack region growing down
+    }
 }
\ No newline at end of file
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_GCC_ARM/samd21j18a.ld b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_GCC_ARM/samd21j18a.ld
index 21334d715a..d35c80cbe2 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_GCC_ARM/samd21j18a.ld
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMD21J18A/device/TOOLCHAIN_GCC_ARM/samd21j18a.ld
@@ -2,15 +2,18 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+    #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+STACK_SIZE = MBED_BOOT_STACK_SIZE;
+
 /* Memory Spaces Definitions */
 MEMORY {
     rom (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00040000
         ram (rwx) : ORIGIN = 0x20000000 + 0xB8, LENGTH = 0x00008000 - 0xB8
     }
 
-    /* The stack size used by the application. NOTE: you need to adjust according to your application. */
-    STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
-
     /* Section Definitions */
     SECTIONS {
 .text :
@@ -113,6 +116,11 @@ MEMORY {
         . = ALIGN(8);
         _estack = .;
     } > ram
+    
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - STACK_SIZE;
 
     . = ALIGN(8);
 }
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_ARM_STD/SAML21J18A.sct b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_ARM_STD/SAML21J18A.sct
index 86cae7a517..7ffda3b72c 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_ARM_STD/SAML21J18A.sct
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_ARM_STD/SAML21J18A.sct
@@ -1,7 +1,15 @@
+#! armcc -E
+
 ;SAML21J18A
 ;256KB FLASH (0x40000) @ 0x000000000
 ;32KB RAM (0x8000) @ 0x20000000
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+  #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+#define Stack_Size MBED_BOOT_STACK_SIZE
+
 ;SAML21J18A: 256KB FLASH (0x40000) + 32KB RAM (0x8000)
 LR_IROM1 0x00000000 0x40000  {    ; load region size_region
     ER_IROM1 0x00000000 0x40000  {  ; load address = execution address
@@ -11,7 +19,9 @@ LR_IROM1 0x00000000 0x40000  {    ; load region size_region
     }
 
     ; [RAM] Vector table dynamic copy: 45 vectors * 4 bytes = (0xB4+0x4) 8-byte alignment
-    RW_IRAM1 (0x20000000+0xB8) (0x8000-0xB8) { ; RW data
+    RW_IRAM1 (0x20000000+0xB8) (0x8000-0xB8-Stack_Size) { ; RW data
         .ANY (+RW +ZI)
     }
+    ARM_LIB_STACK 0x20000000+0x8000 EMPTY -Stack_Size { ; Stack region growing down
+    }
 }
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_GCC_ARM/saml21j18a.ld b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_GCC_ARM/saml21j18a.ld
index 21334d715a..68a37eda36 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_GCC_ARM/saml21j18a.ld
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAML21J18A/device/TOOLCHAIN_GCC_ARM/saml21j18a.ld
@@ -2,15 +2,18 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+    #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+STACK_SIZE = MBED_BOOT_STACK_SIZE;
+
 /* Memory Spaces Definitions */
 MEMORY {
     rom (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00040000
         ram (rwx) : ORIGIN = 0x20000000 + 0xB8, LENGTH = 0x00008000 - 0xB8
     }
 
-    /* The stack size used by the application. NOTE: you need to adjust according to your application. */
-    STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
-
     /* Section Definitions */
     SECTIONS {
 .text :
@@ -114,5 +117,10 @@ MEMORY {
         _estack = .;
     } > ram
 
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - STACK_SIZE;
+
     . = ALIGN(8);
 }
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_ARM_STD/SAMR21G18A.sct b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_ARM_STD/SAMR21G18A.sct
index 669d9fe7a7..b3b1c653de 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_ARM_STD/SAMR21G18A.sct
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_ARM_STD/SAMR21G18A.sct
@@ -1,7 +1,14 @@
+#! armcc -E
+
 ;SAMR21G18A
 ;256KB FLASH (0x40000) @ 0x000000000
 ;2KB RAM (0x8000) @ 0x20000000
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+  #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+#define Stack_Size MBED_BOOT_STACK_SIZE
 
 ;SAMR21G18A: 256KB FLASH (0x40000) + 32KB RAM (0x8000)
 LR_IROM1 0x00000000 0x40000  {    ; load region size_region
@@ -12,8 +19,9 @@ LR_IROM1 0x00000000 0x40000  {    ; load region size_region
     }
 
     ; [RAM] Vector table dynamic copy: 44 vectors * 4 bytes = (0xB0) - alignment
-    RW_IRAM1 (0x20000000+0xB0) (0x8000-0xB0)  {  ; RW data
+    RW_IRAM1 (0x20000000+0xB0) (0x8000-0xB0-Stack_Size)  {  ; RW data
         .ANY (+RW +ZI)
     }
-
+  ARM_LIB_STACK 0x20000000+0x8000 EMPTY -Stack_Size { ; Stack region growing down
+  }
 }
\ No newline at end of file
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_GCC_ARM/samr21g18a.ld b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_GCC_ARM/samr21g18a.ld
index f060f236f6..a547756f2c 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_GCC_ARM/samr21g18a.ld
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/TARGET_SAMR21G18A/device/TOOLCHAIN_GCC_ARM/samr21g18a.ld
@@ -2,15 +2,18 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+    #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+STACK_SIZE = MBED_BOOT_STACK_SIZE;
+
 /* Memory Spaces Definitions */
 MEMORY {
     rom (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00040000
         ram (rwx) : ORIGIN = 0x20000000 + 0xB0, LENGTH = 0x00008000 - 0xB0
     }
 
-    /* The stack size used by the application. NOTE: you need to adjust according to your application. */
-    STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
-
     /* Section Definitions */
     SECTIONS {
 .text :
@@ -114,5 +117,10 @@ MEMORY {
         _estack = .;
     } > ram
 
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - STACK_SIZE;
+
     . = ALIGN(8);
 }
diff --git a/targets/TARGET_Atmel/TARGET_SAM_CortexM4/TARGET_SAMG55J19/device/TOOLCHAIN_GCC_ARM/samg55j19.ld b/targets/TARGET_Atmel/TARGET_SAM_CortexM4/TARGET_SAMG55J19/device/TOOLCHAIN_GCC_ARM/samg55j19.ld
index e3e802d714..85291c7d5d 100644
--- a/targets/TARGET_Atmel/TARGET_SAM_CortexM4/TARGET_SAMG55J19/device/TOOLCHAIN_GCC_ARM/samg55j19.ld
+++ b/targets/TARGET_Atmel/TARGET_SAM_CortexM4/TARGET_SAMG55J19/device/TOOLCHAIN_GCC_ARM/samg55j19.ld
@@ -2,15 +2,18 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+#if !defined(MBED_BOOT_STACK_SIZE)
+    #define MBED_BOOT_STACK_SIZE 0x400
+#endif
+
+STACK_SIZE = MBED_BOOT_STACK_SIZE;
+
 /* Memory Spaces Definitions */
 MEMORY {
     rom (rx)  : ORIGIN = 0x00400000, LENGTH = 0x00080000
         ram (rwx) : ORIGIN = 0x20000000 + 0x108, LENGTH = 0x00028000 - 0x108
     }
 
-    /* The stack size used by the application. NOTE: you need to adjust according to your application. */
-    STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x3000;
-
     /* Section Definitions */
     SECTIONS {
 .text :
@@ -113,6 +116,11 @@ MEMORY {
         . = ALIGN(8);
         _estack = .;
     } > ram
+    
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - STACK_SIZE;
 
     . = ALIGN(8);
 }