--- VirtualBox-4.3.4/Config.kmk
+++ VirtualBox-4.3.4/Config.kmk
@@ -2335,6 +2335,8 @@
 	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_Wno-variadic-macros   ?= $(call VBOX_GCC_CHECK_CXX,-Wno-variadic-macros,)'
 	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_Wno-vla               ?= $(call VBOX_GCC_CHECK_CXX,-Wno-vla,)'
 	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_fno-stack-protector   ?= $(call VBOX_GCC_CHECK_CC,-fno-stack-protector,)'
+	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_fstack-check_no   ?= $(call VBOX_GCC_CHECK_CC,-fstack-check=no,)'
+	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_nopie                 ?= $(call VBOX_GCC_CHECK_CC,-nopie,)'
 	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_fno-dwarf2-cfi-asm    ?= $(call VBOX_GCC_CHECK_CC,-fno-dwarf2-cfi-asm,)'
 	$(QUIET)$(APPEND) '$@' 'VBOX_GCC_fdiagnostics-show-option ?= $(call VBOX_GCC_CHECK_CC,-fdiagnostics-show-option,)'
 # Produce code optimized for the most common IA32/AMD64/EM64T processors. Introduced with gcc version 4.2.
@@ -3035,8 +3036,8 @@
 
  ifeq ($(VBOX_LDR_FMT32),elf)
  TEMPLATE_VBoxRc_TOOL                = $(VBOX_GCC32_TOOL)
- TEMPLATE_VBoxRc_CXXFLAGS            = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_CXX) $(VBOX_GCC32_Wno-variadic-macros) -fno-exceptions $(VBOX_GCC_GC_OPT) $(VBOX_GCC_GC_FP) -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-strict-aliasing $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_fvisibility-hidden) $(VBOX_GCC_fvisibility-inlines-hidden) -fno-rtti
- TEMPLATE_VBoxRc_CFLAGS              = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_C)   $(VBOX_GCC32_Wno-variadic-macros) -fno-exceptions $(VBOX_GCC_GC_OPT) $(VBOX_GCC_GC_FP) -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-strict-aliasing $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_fvisibility-hidden)
+ TEMPLATE_VBoxRc_CXXFLAGS            = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_CXX) $(VBOX_GCC32_Wno-variadic-macros) -fno-exceptions $(VBOX_GCC_GC_OPT) $(VBOX_GCC_GC_FP) -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-strict-aliasing $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) $(VBOX_GCC_fvisibility-hidden) $(VBOX_GCC_fvisibility-inlines-hidden) -fno-rtti
+ TEMPLATE_VBoxRc_CFLAGS              = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_C)   $(VBOX_GCC32_Wno-variadic-macros) -fno-exceptions $(VBOX_GCC_GC_OPT) $(VBOX_GCC_GC_FP) -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-strict-aliasing $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) $(VBOX_GCC_fvisibility-hidden)
   ifeq ($(KBUILD_TARGET),solaris)
    TEMPLATE_VBoxRc_LDFLAGS           = -r
   else
@@ -3089,9 +3090,9 @@
  endif
 
  ifeq ($(VBOX_LDR_FMT32),elf)
-  TEMPLATE_VBoxRcExe_CFLAGS   = $(filter-out -nostdinc,$(TEMPLATE_VBoxRc_CFLAGS)) -O0
-  TEMPLATE_VBoxRcExe_CXXFLAGS = $(filter-out -nostdinc,$(TEMPLATE_VBoxRc_CXXFLAGS)) -O0
-  TEMPLATE_VBoxRcExe_LDFLAGS  = -g
+  TEMPLATE_VBoxRcExe_CFLAGS   = $(filter-out -nostdinc,$(TEMPLATE_VBoxRc_CFLAGS)) -O0 $(VBOX_GCC_nopie)
+  TEMPLATE_VBoxRcExe_CXXFLAGS = $(filter-out -nostdinc,$(TEMPLATE_VBoxRc_CXXFLAGS)) -O0 $(VBOX_GCC_nopie)
+  TEMPLATE_VBoxRcExe_LDFLAGS  = -g $(VBOX_GCC_nopie)
   TEMPLATE_VBoxRcExe_LDFLAGS.dbgopt = -g
   TEMPLATE_VBoxRcExe_LDFLAGS.strict = -g
   TEMPLATE_VBoxRcExe_LDFLAGS.release = -g
@@ -3162,8 +3163,8 @@
 
 ifeq ($(VBOX_LDR_FMT),elf)
 TEMPLATE_VBoxR0_TOOL                = $(VBOX_GCC_TOOL)
-TEMPLATE_VBoxR0_CFLAGS              = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_C)   $(VBOX_GCC_Wno-variadic-macros) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) -fno-strict-aliasing -fno-exceptions $(VBOX_GCC_fno-stack-protector) -fno-common $(VBOX_GCC_fvisibility-hidden) -std=gnu99
-TEMPLATE_VBoxR0_CXXFLAGS            = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_CXX) $(VBOX_GCC_Wno-variadic-macros) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) -fno-strict-aliasing -fno-exceptions $(VBOX_GCC_fno-stack-protector) -fno-common $(VBOX_GCC_fvisibility-inlines-hidden) $(VBOX_GCC_fvisibility-hidden) -fno-rtti
+TEMPLATE_VBoxR0_CFLAGS              = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_C)   $(VBOX_GCC_Wno-variadic-macros) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) -fno-strict-aliasing -fno-exceptions $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) -fno-common $(VBOX_GCC_fvisibility-hidden) -std=gnu99
+TEMPLATE_VBoxR0_CXXFLAGS            = -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_CXX) $(VBOX_GCC_Wno-variadic-macros) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) -fno-strict-aliasing -fno-exceptions $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) -fno-common $(VBOX_GCC_fvisibility-inlines-hidden) $(VBOX_GCC_fvisibility-hidden) -fno-rtti
 TEMPLATE_VBoxR0_CFLAGS.amd64        = -m64 -mno-red-zone -mcmodel=kernel -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-asynchronous-unwind-tables -ffreestanding
 TEMPLATE_VBoxR0_CXXFLAGS.amd64      = -m64 -mno-red-zone -mcmodel=kernel -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-asynchronous-unwind-tables
 ifeq ($(KBUILD_TARGET),solaris)
@@ -3191,12 +3192,12 @@
 TEMPLATE_VBoxR0_DEFS               += $(VBOX_DARWIN_DEF_SDK_DEFS)
 TEMPLATE_VBoxR0_CXXFLAGS            = $(VBOX_DARWIN_DEF_SDK_CXXFLAGS) -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_CXX) $(VBOX_GCC_Wno-variadic-macros) \
 	-fno-common -msoft-float -static -fno-rtti -fno-exceptions $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) -fno-strict-aliasing \
-	-mno-sse -mno-mmx -mno-sse2 -mno-3dnow $(VBOX_GCC_fno-stack-protector)
+	-mno-sse -mno-mmx -mno-sse2 -mno-3dnow $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie)
 TEMPLATE_VBoxR0_CXXFLAGS.amd64      = -m64 -mno-red-zone -mno-sse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2  -mno-sse4a -fno-unwind-tables
 TEMPLATE_VBoxR0_CXXFLAGS.x86        = -m32
 TEMPLATE_VBoxR0_CFLAGS              = $(VBOX_DARWIN_DEF_SDK_CFLAGS)   -nostdinc -g $(VBOX_GCC_pipe) $(VBOX_GCC_WERR) $(VBOX_GCC_PEDANTIC_C)   $(VBOX_GCC_Wno-variadic-macros) \
 	-fno-common -msoft-float -static -fno-exceptions $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) -fno-strict-aliasing \
-	-mno-sse -mno-mmx -mno-sse2 -mno-3dnow $(VBOX_GCC_fno-stack-protector)
+	-mno-sse -mno-mmx -mno-sse2 -mno-3dnow $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie)
 TEMPLATE_VBoxR0_CFLAGS.amd64        = -m64 -mno-red-zone -mno-sse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2  -mno-sse4a -fno-unwind-tables
 TEMPLATE_VBoxR0_CFLAGS.x86          = -m32
 TEMPLATE_VBoxR0_LDFLAGS             = $(VBOX_DARWIN_DEF_SDK_LDFLAGS) -nostdlib
@@ -3266,7 +3267,7 @@
 TEMPLATE_VBOXR0DRV_INCS                = $(VBOX_LINUX_INCS)
 TEMPLATE_VBOXR0DRV_CFLAGS              = -nostdinc -iwithprefix include $(VBOX_LINUX_INCLUDE) \
 	$(VBOX_GCC_WARN) -Wstrict-prototypes $(VBOX_GCC_Wno-pointer-sign) -Wno-sign-compare $(VBOX_GCC_fdiagnostics-show-option) \
-	$(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) \
+	$(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) \
 	-fno-strict-aliasing -fno-common -Werror-implicit-function-declaration
 TEMPLATE_VBOXR0DRV_CFLAGS.x86          = -mpreferred-stack-boundary=2 -msoft-float
 TEMPLATE_VBOXR0DRV_CFLAGS.amd64        = -m64 -mno-red-zone -mcmodel=kernel -mno-sse -mno-mmx -mno-sse2 -mno-3dnow \
@@ -3394,7 +3395,7 @@
 	-Wstrict-prototypes -Wmissing-prototypes -Wstrict-prototypes \
 	-Wimplicit-function-declaration -Werror-implicit-function-declaration \
 	-O2 -fformat-extensions -ffreestanding -fno-strict-aliasing -fno-common -finline-limit=8000 \
-	$(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) \
+	$(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) \
 	-nostdinc -std=c99
 TEMPLATE_VBOXR0DRV_CFLAGS.x86          = -m32 -mno-align-long-strings -mpreferred-stack-boundary=2 -mno-mmx -mno-3dnow -mno-sse -mno-sse2
 TEMPLATE_VBOXR0DRV_CFLAGS.amd64        = -m64 --param inline-unit-growth=100 --param large-function-growth=1000 \
@@ -3403,7 +3404,7 @@
 TEMPLATE_VBOXR0DRV_CXXFLAGS            = -fno-exceptions -fno-rtti \
 	$(VBOX_GCC_WARN) -Wpointer-arith -Winline \
 	-O2 -fno-format-extensions -fno-strict-aliasing -fno-common -finline-limit=8000 \
-	$(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) \
+	$(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie) $(VBOX_GCC_R0_OPT) $(VBOX_GCC_R0_FP) \
 	-nostdinc
 TEMPLATE_VBOXR0DRV_CXXFLAGS.x86        = $(TEMPLATE_VBOXR0DRV_CFLAGS.x86)
 TEMPLATE_VBOXR0DRV_CXXFLAGS.amd64      = $(TEMPLATE_VBOXR0DRV_CFLAGS.amd64)
@@ -4075,8 +4076,8 @@
  TEMPLATE_VBOXNOCRTGCC_TOOL             = $(VBOX_GCC_TOOL)
  TEMPLATE_VBOXNOCRTGCC_ASTOOL           = $(VBOX_ASTOOL)
  TEMPLATE_VBOXNOCRTGCC_ASFLAGS          = $(VBOX_ASFLAGS)
- TEMPLATE_VBOXNOCRTGCC_CFLAGS          += $(VBOX_GCC_fno-stack-protector)
- TEMPLATE_VBOXNOCRTGCC_CXXFLAGS        += $(VBOX_GCC_fno-stack-protector)
+ TEMPLATE_VBOXNOCRTGCC_CFLAGS          += $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie)
+ TEMPLATE_VBOXNOCRTGCC_CXXFLAGS        += $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie)
  ifeq ($(KBUILD_TARGET_ARCH),amd64)
   # in 64-bit mode we'll build a sys-module (VBoxREM2).
   if1of ($(KBUILD_TARGET), darwin solaris)
@@ -5173,8 +5174,8 @@
 TEMPLATE_VBOXGUESTR3XF86MOD_CFLAGS  = $(TEMPLATE_VBOXGUESTR3EXE_CFLAGS)   -fno-merge-constants -std=c99 -ffreestanding
 TEMPLATE_VBOXGUESTR3XF86MOD_CXXFLAGS= $(TEMPLATE_VBOXGUESTR3EXE_CXXFLAGS) -fno-merge-constants -ffreestanding
 ifeq ($(VBOX_WITH_COMPATIBLE_LINUX_GUEST_PACKAGE),)
- TEMPLATE_VBOXGUESTR3XF86MOD_CFLAGS   += $(VBOX_GCC_fno-stack-protector)
- TEMPLATE_VBOXGUESTR3XF86MOD_CXXFLAGS += $(VBOX_GCC_fno-stack-protector)
+ TEMPLATE_VBOXGUESTR3XF86MOD_CFLAGS   += $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie)
+ TEMPLATE_VBOXGUESTR3XF86MOD_CXXFLAGS += $(VBOX_GCC_fno-stack-protector) $(VBOX_GCC_nopie)
 endif
 TEMPLATE_VBOXGUESTR3XF86MOD_SYSSUFF = .o
 TEMPLATE_VBOXGUESTR3XF86MOD_LIBS  = \
--- VirtualBox-4.3.4/src/VBox/Devices/PC/ipxe/Makefile.kmk
+++ VirtualBox-4.3.4/src/VBox/Devices/PC/ipxe/Makefile.kmk
@@ -131,6 +131,8 @@
 	-W \
 	-Wformat-nonliteral \
 	$(VBOX_GCC_fno-stack-protector) \
+	$(VBOX_GCC_fstack-check_no) \
+	$(VBOX_GCC_nopie) \
 	$(VBOX_GCC_fno-dwarf2-cfi-asm) \
 	$(VBOX_GCC_Wno-address)
  TEMPLATE_iPxe_ASFLAGS = \
@@ -154,6 +155,8 @@
 	-W \
 	-Wformat-nonliteral \
 	$(VBOX_GCC_fno-stack-protector) \
+	$(VBOX_GCC_fstack-check_no) \
+	$(VBOX_GCC_nopie) \
 	$(VBOX_GCC_fno-dwarf2-cfi-asm) \
 	$(VBOX_GCC_Wno-address) \
 	-DASSEMBLY