diff --git a/bsp/allwinner_tina/link.lds b/bsp/allwinner_tina/link.lds
index eb974dea0f..8fb0e9e84d 100644
--- a/bsp/allwinner_tina/link.lds
+++ b/bsp/allwinner_tina/link.lds
@@ -82,8 +82,8 @@ SECTIONS
         PROVIDE(__dtors_end__ = .);
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -118,7 +118,7 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
+    . = ALIGN(8);
     __bss_start = .;
     .bss       :
     {
diff --git a/bsp/beaglebone/beaglebone_ram.lds b/bsp/beaglebone/beaglebone_ram.lds
index cf9bf6944d..5847cb08dd 100644
--- a/bsp/beaglebone/beaglebone_ram.lds
+++ b/bsp/beaglebone/beaglebone_ram.lds
@@ -57,8 +57,8 @@ SECTIONS
         PROVIDE(__dtors_end__ = .);
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -66,7 +66,7 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
+    . = ALIGN(8);
     __bss_start = .;
     .bss       :
     {
diff --git a/bsp/imx6sx/cortex-a9/cpu/start_gcc.S b/bsp/imx6sx/cortex-a9/cpu/start_gcc.S
index 2f16d16807..3ff5a755d5 100644
--- a/bsp/imx6sx/cortex-a9/cpu/start_gcc.S
+++ b/bsp/imx6sx/cortex-a9/cpu/start_gcc.S
@@ -34,6 +34,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept ISR_Stack_Size
 .byte 0
diff --git a/bsp/imx6sx/cortex-a9/imx6.lds b/bsp/imx6sx/cortex-a9/imx6.lds
index e05132025b..a889774f85 100644
--- a/bsp/imx6sx/cortex-a9/imx6.lds
+++ b/bsp/imx6sx/cortex-a9/imx6.lds
@@ -65,8 +65,8 @@ SECTIONS
         . += 16K;
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -74,7 +74,7 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
+    . = ALIGN(8);
     __bss_start = .;
     .bss       :
     {
diff --git a/bsp/imx6ul/imx6.lds b/bsp/imx6ul/imx6.lds
index d8d7480006..a889774f85 100644
--- a/bsp/imx6ul/imx6.lds
+++ b/bsp/imx6ul/imx6.lds
@@ -65,8 +65,8 @@ SECTIONS
         . += 16K;
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -74,8 +74,8 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
-    __bss_start = __data_end;
+    . = ALIGN(8);
+    __bss_start = .;
     .bss       :
     {
     *(.bss)
diff --git a/bsp/lpc2478/lpc2478_ram.lds b/bsp/lpc2478/lpc2478_ram.lds
index ffdada7a2a..28e8cdd7f5 100644
--- a/bsp/lpc2478/lpc2478_ram.lds
+++ b/bsp/lpc2478/lpc2478_ram.lds
@@ -19,8 +19,8 @@ SECTIONS
   __rodata_end = .;
 	
 	. = 0xa0100000;
+  . = ALIGN(8);
   __data_start = .;
-  . = ALIGN(4);
   .data : 
   {	
     	*(.data)
@@ -28,8 +28,8 @@ SECTIONS
   }
   __data_end = .;
 
-  . = ALIGN(4);
-  __bss_start = __data_end;
+  . = ALIGN(8);
+  __bss_start = .;
   .bss       :
   {
    *(.bss)
diff --git a/bsp/qemu-vexpress-a9/link.lds b/bsp/qemu-vexpress-a9/link.lds
index 13854a2c01..797cd7e3ef 100644
--- a/bsp/qemu-vexpress-a9/link.lds
+++ b/bsp/qemu-vexpress-a9/link.lds
@@ -67,8 +67,8 @@ SECTIONS
         PROVIDE(__dtors_end__ = .);
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -76,8 +76,8 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
-    __bss_start = __data_end;
+    . = ALIGN(8);
+    __bss_start = .;
     .bss       :
     {
     *(.bss)
diff --git a/bsp/qemu-vexpress-gemini/cpu/start_gcc.S b/bsp/qemu-vexpress-gemini/cpu/start_gcc.S
index ca8c1f930f..0c64d9fecf 100644
--- a/bsp/qemu-vexpress-gemini/cpu/start_gcc.S
+++ b/bsp/qemu-vexpress-gemini/cpu/start_gcc.S
@@ -48,6 +48,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept ISR_Stack_Size
 .byte 0
diff --git a/bsp/qemu-vexpress-gemini/vexpress.lds b/bsp/qemu-vexpress-gemini/vexpress.lds
index 96863d3f89..2e631aa4ae 100644
--- a/bsp/qemu-vexpress-gemini/vexpress.lds
+++ b/bsp/qemu-vexpress-gemini/vexpress.lds
@@ -57,8 +57,8 @@ SECTIONS
         PROVIDE(__dtors_end__ = .);
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -66,8 +66,8 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
-    __bss_start = __data_end;
+    . = ALIGN(8);
+    __bss_start = .;
     .bss       :
     {
     *(.bss)
diff --git a/bsp/raspi2/cpu/start_gcc.S b/bsp/raspi2/cpu/start_gcc.S
index e64563c91e..b60ad6a38f 100644
--- a/bsp/raspi2/cpu/start_gcc.S
+++ b/bsp/raspi2/cpu/start_gcc.S
@@ -48,6 +48,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept ISR_Stack_Size
 .byte 0
diff --git a/bsp/realview-a8/realview.lds b/bsp/realview-a8/realview.lds
index ceaead6969..f586228840 100644
--- a/bsp/realview-a8/realview.lds
+++ b/bsp/realview-a8/realview.lds
@@ -57,8 +57,8 @@ SECTIONS
         PROVIDE(__dtors_end__ = .);
     }
 
+    . = ALIGN(8);
     __data_start = .;
-    . = ALIGN(4);
     .data :
     {
         *(.data)
@@ -66,8 +66,8 @@ SECTIONS
     }
     __data_end = .;
 
-    . = ALIGN(4);
-    __bss_start = __data_end;
+    . = ALIGN(8);
+    __bss_start = .;
     .bss       :
     {
     *(.bss)
diff --git a/libcpu/arm/am335x/start_gcc.S b/libcpu/arm/am335x/start_gcc.S
index 6b76fb04a4..7e996e2a80 100644
--- a/libcpu/arm/am335x/start_gcc.S
+++ b/libcpu/arm/am335x/start_gcc.S
@@ -33,6 +33,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept ISR_Stack_Size
 .long 0
diff --git a/libcpu/arm/cortex-a/start_gcc.S b/libcpu/arm/cortex-a/start_gcc.S
index 91faa0e3ff..268cc7ef56 100644
--- a/libcpu/arm/cortex-a/start_gcc.S
+++ b/libcpu/arm/cortex-a/start_gcc.S
@@ -41,6 +41,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept ISR_Stack_Size
 .byte 0
diff --git a/libcpu/arm/cortex-r4/start_gcc.S b/libcpu/arm/cortex-r4/start_gcc.S
index ab77b98781..a347503ec0 100644
--- a/libcpu/arm/cortex-r4/start_gcc.S
+++ b/libcpu/arm/cortex-r4/start_gcc.S
@@ -36,6 +36,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept (UND_Stack_Size + SVC_Stack_Size + ABT_Stack_Size + FIQ_Stack_Size + IRQ_Stack_Size)
 .byte 0
diff --git a/libcpu/arm/realview-a8-vmm/start_gcc.S b/libcpu/arm/realview-a8-vmm/start_gcc.S
index 2ec7fe6c86..879cf992a8 100644
--- a/libcpu/arm/realview-a8-vmm/start_gcc.S
+++ b/libcpu/arm/realview-a8-vmm/start_gcc.S
@@ -47,6 +47,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 stack_start:
 .rept ISR_Stack_Size
 .byte 0
diff --git a/libcpu/arm/zynq7000/start_gcc.S b/libcpu/arm/zynq7000/start_gcc.S
index 6904c45587..18056f0ad9 100644
--- a/libcpu/arm/zynq7000/start_gcc.S
+++ b/libcpu/arm/zynq7000/start_gcc.S
@@ -33,6 +33,7 @@
 .globl stack_start
 .globl stack_top
 
+.align 3
 .bss
 stack_start:
 .rept ISR_Stack_Size