Target_Freescale: Add heap section in linker files

Author: deepikabhavnani

targets/TARGET_Freescale/TARGET_K20XX/TARGET_K20D50M/device/TOOLCHAIN_ARM_STD/MK20D5.sct

@@ -14,10 +14,14 @@ LR_IROM1 0x00000000 0x20000  {    ; load region size_region (132k)
   }
   ; 8_byte_aligned(62 vect * 4 bytes) =  8_byte_aligned(0xF8) = 0xF8
   ; 0x4000 - 0xF8 = 0x3F08
-  RW_IRAM1 0x1FFFE0F8 0x3F08-Stack_Size {
+  RW_IRAM1 0x1FFFE0F8 0x3F08 {
    .ANY (+RW +ZI)
   }
-  ARM_LIB_STACK 0x1FFFE0F8+0x3F08 EMPTY -Stack_Size { ; Stack region growing down
+
+  ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (0x1FFFE000+0x4000-Stack_Size-AlignExpr(ImageLimit(RW_IRAM1), 16)) { ; Heap region growing up
+  }
+
+  ARM_LIB_STACK 0x1FFFE000+0x4000 EMPTY -Stack_Size { ; Stack region growing down
   }
 }
 

targets/TARGET_Freescale/TARGET_K20XX/TARGET_TEENSY3_1/device/TOOLCHAIN_ARM_STD/MK20DX256.sct

@@ -14,9 +14,13 @@ LR_IROM1 0x00000000 0x40000  {    ; load region size_region (256k)
   }
   ; 8_byte_aligned(112 vect * 4 bytes) =  8_byte_aligned(0x1C0) = 0x1C0
   ; 0x10000 - 0x1C0 = 0xFE40
-  RW_IRAM1 0x1FFF81C0 0xFE40-Stack_Size {
+  RW_IRAM1 0x1FFF81C0 0xFE40  {
    .ANY (+RW +ZI)
   }
-  ARM_LIB_STACK 0x1FFF81C0+0xFE40 EMPTY -Stack_Size { ; Stack region growing down
+  
+  ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (0x1FFF8000+0x10000-Stack_Size-AlignExpr(ImageLimit(RW_IRAM1), 16)) { ; Heap region growing up
+  }
+
+  ARM_LIB_STACK 0x1FFF8000+0x10000 EMPTY -Stack_Size { ; Stack region growing down
   }
 }

targets/TARGET_Freescale/TARGET_KLXX/TARGET_KL05Z/device/TOOLCHAIN_ARM_STD/MKL05Z4.sct

@@ -14,9 +14,13 @@ LR_IROM1 0x00000000 0x8000  {    ; load region size_region (32k)
   }
   ; 8_byte_aligned(48 vect * 4 bytes) =  8_byte_aligned(0xC0) = 0xC0
   ; 0x1000 - 0xC0 = 0xF40
-  RW_IRAM1 0x1FFFFCC0 0xF40-Stack_Size {
+  RW_IRAM1 0x1FFFF000 0xF40 {
    .ANY (+RW +ZI)
   }
-  ARM_LIB_STACK 0x1FFFFCC0+0xF40 EMPTY -Stack_Size { ; Stack region growing down
+  
+  ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (0x1FFFF000+0x1000-Stack_Size-AlignExpr(ImageLimit(RW_IRAM1), 16)) { ; Heap region growing up
+  }
+
+  ARM_LIB_STACK 0x1FFFF000+0x1000 EMPTY -Stack_Size { ; Stack region growing down
   }
 }

targets/TARGET_Freescale/TARGET_KLXX/TARGET_KL25Z/device/TOOLCHAIN_ARM_STD/MKL25Z4.sct

@@ -12,12 +12,17 @@ LR_IROM1 0x00000000 0x20000  {    ; load region size_region (32k)
    *(InRoot$$Sections)
    .ANY (+RO)
   }
+
   ; 8_byte_aligned(48 vect * 4 bytes) =  8_byte_aligned(0xC0) = 0xC0
   ; 0x4000 - 0xC0 = 0x3F40
-  RW_IRAM1 0x1FFFF0C0 0x3F40-Stack_Size {
+  RW_IRAM1 0x1FFFF0C0 0x3F40 {
    .ANY (+RW +ZI)
   }
-  ARM_LIB_STACK 0x1FFFF0C0+0x3F40 EMPTY -Stack_Size { ; Stack region growing down
+  
+  ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (0x1FFFF000+0x4000-Stack_Size-AlignExpr(ImageLimit(RW_IRAM1), 16)) { ; Heap region growing up
+  }
+
+  ARM_LIB_STACK 0x1FFFF000+0x4000 EMPTY -Stack_Size { ; Stack region growing down
   }
 }
 

targets/TARGET_Freescale/TARGET_KLXX/TARGET_KL46Z/device/TOOLCHAIN_ARM_STD/MKL46Z4.sct

@@ -14,10 +14,14 @@ LR_IROM1 0x00000000 0x40000  {    ; load region size_region (256k)
   }
   ; 8_byte_aligned(48 vect * 4 bytes) =  8_byte_aligned(0xC0) = 0xC0
   ; 0x8000 - 0xC0 = 0x7F40
-  RW_IRAM1 0x1FFFE0C0 0x7F40-Stack_Size {
+  RW_IRAM1 0x1FFFE0C0 0x7F40  {
    .ANY (+RW +ZI)
   }
-  ARM_LIB_STACK 0x1FFFE0C0+0x7F40 EMPTY -Stack_Size { ; Stack region growing down
+  
+  ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (0x1FFFE000+0x8000-Stack_Size-AlignExpr(ImageLimit(RW_IRAM1), 16)) { ; Heap region growing up
+  }
+
+  ARM_LIB_STACK 0x1FFFE000+0x8000 EMPTY -Stack_Size { ; Stack region growing down
   }
 }