getentropy: Add cpu counter based implementation.

Update #3239.

82 files changed, 137 insertions, 1 deletions

diff --git a/c/src/lib/libbsp/arm/altera-cyclone-v/Makefile.am b/c/src/lib/libbsp/arm/altera-cyclone-v/Makefile.am
index 7470842206..bf5e2577f4 100644
--- a/c/src/lib/libbsp/arm/altera-cyclone-v/Makefile.am
+++ b/c/src/lib/libbsp/arm/altera-cyclone-v/Makefile.am
@@ -151,6 +151,7 @@ libbsp_a_SOURCES += hwlib/src/hwmgr/alt_reset_manager.c
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
diff --git a/c/src/lib/libbsp/arm/atsam/Makefile.am b/c/src/lib/libbsp/arm/atsam/Makefile.am
index 5eafc42872..d29ba0895a 100644
--- a/c/src/lib/libbsp/arm/atsam/Makefile.am
+++ b/c/src/lib/libbsp/arm/atsam/Makefile.am
@@ -332,6 +332,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/beagle/Makefile.am b/c/src/lib/libbsp/arm/beagle/Makefile.am
index e7c44a11fc..837473cfa9 100644
--- a/c/src/lib/libbsp/arm/beagle/Makefile.am
+++ b/c/src/lib/libbsp/arm/beagle/Makefile.am
@@ -76,6 +76,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/src/bsp-fdt.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
diff --git a/c/src/lib/libbsp/arm/csb336/Makefile.am b/c/src/lib/libbsp/arm/csb336/Makefile.am
index 09bc3582cd..26f7673e0c 100644
--- a/c/src/lib/libbsp/arm/csb336/Makefile.am
+++ b/c/src/lib/libbsp/arm/csb336/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES += \
     ../../shared/bspgetworkarea.c \
     ../../shared/bsppredriverhook.c startup/bspstart.c ../../shared/bspclean.c \
     ../../shared/bspreset.c startup/memmap.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
 libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
diff --git a/c/src/lib/libbsp/arm/csb337/Makefile.am b/c/src/lib/libbsp/arm/csb337/Makefile.am
index f4bcd3540c..c6bb748b00 100644
--- a/c/src/lib/libbsp/arm/csb337/Makefile.am
+++ b/c/src/lib/libbsp/arm/csb337/Makefile.am
@@ -56,6 +56,7 @@ libbsp_a_SOURCES = \
     startup/bspstart.c \
     ../../shared/bspclean.c startup/bspreset.c \
     startup/memmap.c ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
 libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
diff --git a/c/src/lib/libbsp/arm/edb7312/Makefile.am b/c/src/lib/libbsp/arm/edb7312/Makefile.am
index ff0fa67115..540b773f73 100644
--- a/c/src/lib/libbsp/arm/edb7312/Makefile.am
+++ b/c/src/lib/libbsp/arm/edb7312/Makefile.am
@@ -34,6 +34,7 @@ libbsp_a_SOURCES += \
     ../../shared/bspgetworkarea.c \
     ../../shared/bsppredriverhook.c startup/bspstart.c \
     ../../shared/bspclean.c ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/bspreset.c ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
 libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
diff --git a/c/src/lib/libbsp/arm/gdbarmsim/Makefile.am b/c/src/lib/libbsp/arm/gdbarmsim/Makefile.am
index 339a87f111..7fc4b8349b 100644
--- a/c/src/lib/libbsp/arm/gdbarmsim/Makefile.am
+++ b/c/src/lib/libbsp/arm/gdbarmsim/Makefile.am
@@ -36,6 +36,7 @@ libbsp_a_SOURCES += \
     ../../shared/bspgetworkarea.c \
     ../../shared/bsppredriverhook.c ../../shared/bspstart.c \
     ../../shared/bspclean.c startup/bspreset.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/gnatinstallhandler.c startup/syscalls.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
 libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
diff --git a/c/src/lib/libbsp/arm/gumstix/Makefile.am b/c/src/lib/libbsp/arm/gumstix/Makefile.am
index 68fb9ce7a3..a3e49f27ef 100644
--- a/c/src/lib/libbsp/arm/gumstix/Makefile.am
+++ b/c/src/lib/libbsp/arm/gumstix/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += \
   ../../shared/bsppredriverhook.c ../../shared/bspgetworkarea.c \
   ../../shared/bootcard.c ../../shared/sbrk.c \
+  ../../shared/getentropy-cpucounter.c \
   ../../shared/gnatinstallhandler.c \
   ../../shared/bspclean.c startup/bspstart.c startup/bspreset.c startup/memmap.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
diff --git a/c/src/lib/libbsp/arm/lm3s69xx/Makefile.am b/c/src/lib/libbsp/arm/lm3s69xx/Makefile.am
index 621a1eda38..676e61659c 100644
--- a/c/src/lib/libbsp/arm/lm3s69xx/Makefile.am
+++ b/c/src/lib/libbsp/arm/lm3s69xx/Makefile.am
@@ -61,6 +61,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/lpc176x/Makefile.am b/c/src/lib/libbsp/arm/lpc176x/Makefile.am
index d6cc64ff10..ab1fbe9d3d 100644
--- a/c/src/lib/libbsp/arm/lpc176x/Makefile.am
+++ b/c/src/lib/libbsp/arm/lpc176x/Makefile.am
@@ -90,6 +90,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/lpc24xx/Makefile.am b/c/src/lib/libbsp/arm/lpc24xx/Makefile.am
index 4f14f362ee..bb22544cd7 100644
--- a/c/src/lib/libbsp/arm/lpc24xx/Makefile.am
+++ b/c/src/lib/libbsp/arm/lpc24xx/Makefile.am
@@ -92,6 +92,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/bspclean.c \
 	../../shared/bspgetworkarea.c \
 	../../shared/bsppredriverhook.c \
diff --git a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
index e87c6a06a8..30b2742243 100644
--- a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
+++ b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
@@ -84,6 +84,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/raspberrypi/Makefile.am b/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
index 14e04277cb..d3653a39f6 100644
--- a/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
+++ b/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
@@ -82,6 +82,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
diff --git a/c/src/lib/libbsp/arm/realview-pbx-a9/Makefile.am b/c/src/lib/libbsp/arm/realview-pbx-a9/Makefile.am
index 6142a1f9b3..ab0b6a8389 100644
--- a/c/src/lib/libbsp/arm/realview-pbx-a9/Makefile.am
+++ b/c/src/lib/libbsp/arm/realview-pbx-a9/Makefile.am
@@ -79,6 +79,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/rtl22xx/Makefile.am b/c/src/lib/libbsp/arm/rtl22xx/Makefile.am
index 18eaf62247..fc1126b6f9 100644
--- a/c/src/lib/libbsp/arm/rtl22xx/Makefile.am
+++ b/c/src/lib/libbsp/arm/rtl22xx/Makefile.am
@@ -35,6 +35,7 @@ libbsp_a_SOURCES += \
     ../../shared/bspgetworkarea.c startup/bspstart.c \
     ../../shared/bspclean.c startup/bspreset.c \
     ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += ../../shared/cpucounterread.c
 libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
diff --git a/c/src/lib/libbsp/arm/smdk2410/Makefile.am b/c/src/lib/libbsp/arm/smdk2410/Makefile.am
index 7cf25e165b..34e097bcc3 100644
--- a/c/src/lib/libbsp/arm/smdk2410/Makefile.am
+++ b/c/src/lib/libbsp/arm/smdk2410/Makefile.am
@@ -34,6 +34,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += startup/bspreset.c
 libbsp_a_SOURCES += startup/memmap.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/stm32f4/Makefile.am b/c/src/lib/libbsp/arm/stm32f4/Makefile.am
index 9634b5c514..c108e9a024 100644
--- a/c/src/lib/libbsp/arm/stm32f4/Makefile.am
+++ b/c/src/lib/libbsp/arm/stm32f4/Makefile.am
@@ -76,6 +76,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/tms570/Makefile.am b/c/src/lib/libbsp/arm/tms570/Makefile.am
index 39fc555ee2..70f0eac060 100644
--- a/c/src/lib/libbsp/arm/tms570/Makefile.am
+++ b/c/src/lib/libbsp/arm/tms570/Makefile.am
@@ -118,6 +118,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am b/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
index 1f9ed5990c..704b2bed6a 100644
--- a/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
+++ b/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
@@ -76,6 +76,7 @@ libbsp_a_LIBADD =
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/bfin/TLL6527M/Makefile.am b/c/src/lib/libbsp/bfin/TLL6527M/Makefile.am
index 00afc743d4..d508b24ab7 100644
--- a/c/src/lib/libbsp/bfin/TLL6527M/Makefile.am
+++ b/c/src/lib/libbsp/bfin/TLL6527M/Makefile.am
@@ -30,6 +30,7 @@ libbsp_a_SOURCES = \
 	startup/bspstart.c \
 	../../shared/bspclean.c ../../shared/sbrk.c ../../shared/setvec.c \
 	../../shared/bootcard.c ../../shared/gnatinstallhandler.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/bspgetworkarea.c
 
 libbsp_a_SOURCES += console/console.c
diff --git a/c/src/lib/libbsp/bfin/bf537Stamp/Makefile.am b/c/src/lib/libbsp/bfin/bf537Stamp/Makefile.am
index 756c2f1ef7..5087750017 100644
--- a/c/src/lib/libbsp/bfin/bf537Stamp/Makefile.am
+++ b/c/src/lib/libbsp/bfin/bf537Stamp/Makefile.am
@@ -30,6 +30,7 @@ libbsp_a_SOURCES += \
 	startup/bspstart.c \
 	../../shared/bspclean.c ../../shared/sbrk.c ../../shared/setvec.c \
 	../../shared/bootcard.c ../../shared/gnatinstallhandler.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/bspgetworkarea.c
 
 libbsp_a_SOURCES += console/console.c
diff --git a/c/src/lib/libbsp/bfin/eZKit533/Makefile.am b/c/src/lib/libbsp/bfin/eZKit533/Makefile.am
index 1c680f1e1f..91d3f3ecc6 100644
--- a/c/src/lib/libbsp/bfin/eZKit533/Makefile.am
+++ b/c/src/lib/libbsp/bfin/eZKit533/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES += \
 	startup/bspstart.c \
 	../../shared/bspclean.c ../../shared/sbrk.c ../../shared/setvec.c \
 	../../shared/bootcard.c ../../shared/gnatinstallhandler.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/bspgetworkarea.c
 
 libbsp_a_SOURCES += console/console-io.c
diff --git a/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am b/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am
index d7d55262c1..eac56045c6 100644
--- a/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am
+++ b/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am
@@ -56,6 +56,7 @@ libbsp_a_SOURCES += ../../shared/bspstart.c
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
diff --git a/c/src/lib/libbsp/i386/pc386/Makefile.am b/c/src/lib/libbsp/i386/pc386/Makefile.am
index cc1a7f67cb..5fccc2ef0e 100644
--- a/c/src/lib/libbsp/i386/pc386/Makefile.am
+++ b/c/src/lib/libbsp/i386/pc386/Makefile.am
@@ -156,6 +156,7 @@ libbsp_a_SOURCES += ../../i386/shared/irq/irq.c
 libbsp_a_SOURCES += ../../i386/shared/irq/irq_init.c
 libbsp_a_SOURCES += ../../i386/shared/irq/elcr.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/ldsegs.S
 libbsp_a_SOURCES += ../../i386/shared/irq/irq_asm.S
diff --git a/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am b/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am
index d8a03de17c..c18baea68c 100644
--- a/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am
+++ b/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../shared/startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += ../../shared/setvec.c
 libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
diff --git a/c/src/lib/libbsp/lm32/milkymist/Makefile.am b/c/src/lib/libbsp/lm32/milkymist/Makefile.am
index bab2a7f3ea..d39ec9347b 100644
--- a/c/src/lib/libbsp/lm32/milkymist/Makefile.am
+++ b/c/src/lib/libbsp/lm32/milkymist/Makefile.am
@@ -49,6 +49,7 @@ libbsp_a_SOURCES += startup/bspclean.c
 libbsp_a_SOURCES += ../shared/startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
 
diff --git a/c/src/lib/libbsp/m32c/m32cbsp/Makefile.am b/c/src/lib/libbsp/m32c/m32cbsp/Makefile.am
index dd38e9784a..c00ffa0d23 100644
--- a/c/src/lib/libbsp/m32c/m32cbsp/Makefile.am
+++ b/c/src/lib/libbsp/m32c/m32cbsp/Makefile.am
@@ -29,6 +29,7 @@ startup_SOURCES = ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     startup/bspstart.c ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c startup/crtn.S
 clock_SOURCES = ../../shared/clock_driver_simidle.c
 console_SOURCES = ../../shared/console-polled.c console/console-io.c \
diff --git a/c/src/lib/libbsp/m68k/av5282/Makefile.am b/c/src/lib/libbsp/m68k/av5282/Makefile.am
index 2e7418c418..1231c30bc0 100644
--- a/c/src/lib/libbsp/m68k/av5282/Makefile.am
+++ b/c/src/lib/libbsp/m68k/av5282/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     startup/init5282.c startup/bspstart.c \
     ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # clock
diff --git a/c/src/lib/libbsp/m68k/csb360/Makefile.am b/c/src/lib/libbsp/m68k/csb360/Makefile.am
index 2271b53d83..f872ebaa98 100644
--- a/c/src/lib/libbsp/m68k/csb360/Makefile.am
+++ b/c/src/lib/libbsp/m68k/csb360/Makefile.am
@@ -32,6 +32,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/bspstart.c startup/init5272.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # console
diff --git a/c/src/lib/libbsp/m68k/gen68340/Makefile.am b/c/src/lib/libbsp/m68k/gen68340/Makefile.am
index 7130692fd7..f52e96613c 100644
--- a/c/src/lib/libbsp/m68k/gen68340/Makefile.am
+++ b/c/src/lib/libbsp/m68k/gen68340/Makefile.am
@@ -35,6 +35,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c ../../shared/bspgetworkarea.c \
     ../../shared/bspstart.c startup/init68340.c \
     ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     startup/dumpanic.c ../../shared/gnatinstallhandler.c
 # clock
diff --git a/c/src/lib/libbsp/m68k/gen68360/Makefile.am b/c/src/lib/libbsp/m68k/gen68360/Makefile.am
index e81a29f5c8..25411d0b07 100644
--- a/c/src/lib/libbsp/m68k/gen68360/Makefile.am
+++ b/c/src/lib/libbsp/m68k/gen68360/Makefile.am
@@ -30,6 +30,7 @@ libbsp_a_SOURCES += startup/alloc360.c ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c ../../shared/bspstart.c \
     startup/init68360.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # clock
diff --git a/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am b/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am
index e9e1f40e4f..902b6bbc8e 100644
--- a/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am
+++ b/c/src/lib/libbsp/m68k/genmcf548x/Makefile.am
@@ -41,6 +41,7 @@ libbsp_a_SOURCES += \
   ../../shared/bspreset_loop.c \
   ../../shared/bsppredriverhook.c startup/init548x.c startup/bspstart.c \
   ../../shared/bootcard.c ../../shared/sbrk.c ../../shared/setvec.c \
+  ../../shared/getentropy-cpucounter.c \
   ../../shared/gnatinstallhandler.c
 # clock
 libbsp_a_SOURCES += clock/clock.c ../../../shared/clockdrv_shell.h
diff --git a/c/src/lib/libbsp/m68k/mcf5206elite/Makefile.am b/c/src/lib/libbsp/m68k/mcf5206elite/Makefile.am
index 2ca635ba8b..473fe49cfa 100644
--- a/c/src/lib/libbsp/m68k/mcf5206elite/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mcf5206elite/Makefile.am
@@ -37,6 +37,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c ../../shared/bspgetworkarea.c \
     ../../shared/bspstart.c startup/init5206e.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # console
diff --git a/c/src/lib/libbsp/m68k/mcf52235/Makefile.am b/c/src/lib/libbsp/m68k/mcf52235/Makefile.am
index ec373d77ee..c381ef1f8e 100644
--- a/c/src/lib/libbsp/m68k/mcf52235/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mcf52235/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     startup/init52235.c ../../shared/bspstart.c startup/cfinit.c \
     startup/bspgetcpuclockspeed.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # clock
diff --git a/c/src/lib/libbsp/m68k/mcf5225x/Makefile.am b/c/src/lib/libbsp/m68k/mcf5225x/Makefile.am
index 5106369391..4f6d681b8d 100644
--- a/c/src/lib/libbsp/m68k/mcf5225x/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mcf5225x/Makefile.am
@@ -30,6 +30,7 @@ libbsp_a_SOURCES = \
     ../../shared/bspgetworkarea.c \
     startup/init5225x.c startup/bspstart.c \
     ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += clock/clock.c
diff --git a/c/src/lib/libbsp/m68k/mcf5235/Makefile.am b/c/src/lib/libbsp/m68k/mcf5235/Makefile.am
index 6b06f89b00..558eb2e741 100644
--- a/c/src/lib/libbsp/m68k/mcf5235/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mcf5235/Makefile.am
@@ -32,6 +32,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsppredriverhook.c \
     startup/bspgetcpuclockspeed.c \
     ../../shared/bspgetworkarea.c startup/init5235.c startup/bspstart.c \
     ../../shared/bootcard.c ../../shared/sbrk.c ../../shared/setvec.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c \
     startup/copyvectors.c
 # clock
diff --git a/c/src/lib/libbsp/m68k/mcf5329/Makefile.am b/c/src/lib/libbsp/m68k/mcf5329/Makefile.am
index 496d322637..e2406a8775 100644
--- a/c/src/lib/libbsp/m68k/mcf5329/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mcf5329/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     startup/init5329.c startup/bspstart.c startup/cfinit.c\
     ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # clock
diff --git a/c/src/lib/libbsp/m68k/mrm332/Makefile.am b/c/src/lib/libbsp/m68k/mrm332/Makefile.am
index 3d43fcaefe..deb6a408fc 100644
--- a/c/src/lib/libbsp/m68k/mrm332/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mrm332/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += startup/start_c.c \
     ../../shared/bspstart.c startup/bsppredriverhook.c \
     ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bspclean.c \
     ../../shared/setvec.c \
     ../../shared/bspgetworkarea.c ../../shared/gnatinstallhandler.c 
diff --git a/c/src/lib/libbsp/m68k/mvme147/Makefile.am b/c/src/lib/libbsp/m68k/mvme147/Makefile.am
index 18e0c79f5f..d38a04d76f 100644
--- a/c/src/lib/libbsp/m68k/mvme147/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mvme147/Makefile.am
@@ -32,6 +32,7 @@ libbsp_a_SOURCES =
 # startup
 libbsp_a_SOURCES += startup/bspclean.c \
     startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c ../../shared/sbrk.c \
     ../../shared/setvec.c ../../shared/gnatinstallhandler.c
diff --git a/c/src/lib/libbsp/m68k/mvme147s/Makefile.am b/c/src/lib/libbsp/m68k/mvme147s/Makefile.am
index 4da9f823f1..3b1fccad22 100644
--- a/c/src/lib/libbsp/m68k/mvme147s/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mvme147s/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/setvec.c \
     ../../shared/bspgetworkarea.c ../../shared/setvec.c \
     ../../shared/sbrk.c ../../shared/gnatinstallhandler.c
diff --git a/c/src/lib/libbsp/m68k/mvme162/Makefile.am b/c/src/lib/libbsp/m68k/mvme162/Makefile.am
index d2a97937d3..f04d19f587 100644
--- a/c/src/lib/libbsp/m68k/mvme162/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mvme162/Makefile.am
@@ -36,6 +36,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += startup/bspclean.c \
     ../../shared/bsppredriverhook.c \
     startup/bspstart.c ../../shared/bootcard.c  \
+    ../../shared/getentropy-cpucounter.c \
     startup/page_table.c \
     ../../shared/bspgetworkarea.c startup/page_table.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
diff --git a/c/src/lib/libbsp/m68k/mvme167/Makefile.am b/c/src/lib/libbsp/m68k/mvme167/Makefile.am
index 56fefe9235..120bc28d77 100644
--- a/c/src/lib/libbsp/m68k/mvme167/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mvme167/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES += startup/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/page_table.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
diff --git a/c/src/lib/libbsp/m68k/uC5282/Makefile.am b/c/src/lib/libbsp/m68k/uC5282/Makefile.am
index 530cdcbc08..ea8fe3b41b 100644
--- a/c/src/lib/libbsp/m68k/uC5282/Makefile.am
+++ b/c/src/lib/libbsp/m68k/uC5282/Makefile.am
@@ -30,6 +30,7 @@ libbsp_a_SOURCES += startup/bspclean.c startup/bspreset.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     startup/init5282.c startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/setvec.c \
     ../../shared/gnatinstallhandler.c
 # clock
diff --git a/c/src/lib/libbsp/mips/csb350/Makefile.am b/c/src/lib/libbsp/mips/csb350/Makefile.am
index 4296a45979..a69fe94018 100644
--- a/c/src/lib/libbsp/mips/csb350/Makefile.am
+++ b/c/src/lib/libbsp/mips/csb350/Makefile.am
@@ -38,6 +38,7 @@ libbsp_a_SOURCES += startup/bspreset.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 # clock
 libbsp_a_SOURCES += clock/clockdrv.c
diff --git a/c/src/lib/libbsp/mips/hurricane/Makefile.am b/c/src/lib/libbsp/mips/hurricane/Makefile.am
index 7dfdc1561c..520e903279 100644
--- a/c/src/lib/libbsp/mips/hurricane/Makefile.am
+++ b/c/src/lib/libbsp/mips/hurricane/Makefile.am
@@ -36,6 +36,7 @@ libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/inittlb.c
 libbsp_a_SOURCES += ../shared/startup/idtmem.S
diff --git a/c/src/lib/libbsp/mips/jmr3904/Makefile.am b/c/src/lib/libbsp/mips/jmr3904/Makefile.am
index e0b68ca0c8..2cce93a4b9 100644
--- a/c/src/lib/libbsp/mips/jmr3904/Makefile.am
+++ b/c/src/lib/libbsp/mips/jmr3904/Makefile.am
@@ -36,6 +36,7 @@ libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 # clock
 libbsp_a_SOURCES += clock/clockdrv.c
diff --git a/c/src/lib/libbsp/mips/malta/Makefile.am b/c/src/lib/libbsp/mips/malta/Makefile.am
index 5d4b5f5fe3..bb2d0c9f15 100644
--- a/c/src/lib/libbsp/mips/malta/Makefile.am
+++ b/c/src/lib/libbsp/mips/malta/Makefile.am
@@ -43,6 +43,7 @@ libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += startup/bspreset.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/inittlb.c
 libbsp_a_SOURCES += ../shared/startup/idttlb.S
diff --git a/c/src/lib/libbsp/mips/rbtx4925/Makefile.am b/c/src/lib/libbsp/mips/rbtx4925/Makefile.am
index 5c0b08b640..50793fb2c5 100644
--- a/c/src/lib/libbsp/mips/rbtx4925/Makefile.am
+++ b/c/src/lib/libbsp/mips/rbtx4925/Makefile.am
@@ -37,6 +37,7 @@ libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/inittlb.c
 libbsp_a_SOURCES += ../shared/startup/idttlb.S
diff --git a/c/src/lib/libbsp/mips/rbtx4938/Makefile.am b/c/src/lib/libbsp/mips/rbtx4938/Makefile.am
index 5c0b08b640..50793fb2c5 100644
--- a/c/src/lib/libbsp/mips/rbtx4938/Makefile.am
+++ b/c/src/lib/libbsp/mips/rbtx4938/Makefile.am
@@ -37,6 +37,7 @@ libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/inittlb.c
 libbsp_a_SOURCES += ../shared/startup/idttlb.S
diff --git a/c/src/lib/libbsp/moxie/moxiesim/Makefile.am b/c/src/lib/libbsp/moxie/moxiesim/Makefile.am
index 9d7051053b..7d8fb95ad3 100644
--- a/c/src/lib/libbsp/moxie/moxiesim/Makefile.am
+++ b/c/src/lib/libbsp/moxie/moxiesim/Makefile.am
@@ -34,6 +34,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/bspstart.c ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c
 # clock
 libbsp_a_SOURCES += ../../shared/clock_driver_simidle.c
diff --git a/c/src/lib/libbsp/nios2/nios2_iss/Makefile.am b/c/src/lib/libbsp/nios2/nios2_iss/Makefile.am
index a619bd224e..e52576f539 100644
--- a/c/src/lib/libbsp/nios2/nios2_iss/Makefile.am
+++ b/c/src/lib/libbsp/nios2/nios2_iss/Makefile.am
@@ -34,6 +34,7 @@ libbsp_a_SOURCES += ../../shared/bspreset_loop.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/setvec.c
 libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/Makefile.am b/c/src/lib/libbsp/no_cpu/no_bsp/Makefile.am
index 74ab358196..f03dbc6cf3 100644
--- a/c/src/lib/libbsp/no_cpu/no_bsp/Makefile.am
+++ b/c/src/lib/libbsp/no_cpu/no_bsp/Makefile.am
@@ -27,6 +27,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/startup/bspgetworkarea.c \
     startup/bspstart.c ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/setvec.c ../../shared/gnatinstallhandler.c
 # clock
 libbsp_a_SOURCES += clock/ckinit.c
diff --git a/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am b/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am
index ac50a2d74e..a6bd225b04 100644
--- a/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am
+++ b/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am
@@ -66,6 +66,7 @@ libbsp_a_SOURCES += startup/bspstart.c
 
 # Shared
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/powerpc/beatnik/Makefile.am b/c/src/lib/libbsp/powerpc/beatnik/Makefile.am
index 83bc96e52d..e764c9e8eb 100644
--- a/c/src/lib/libbsp/powerpc/beatnik/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/beatnik/Makefile.am
@@ -66,6 +66,7 @@ libbsp_a_SOURCES += startup/bspstart.c \
     ../../powerpc/shared/startup/pgtbl_setup.c \
     ../../powerpc/shared/startup/pgtbl_activate.c \
     ../../powerpc/shared/startup/sbrk.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/bspclean.c \
     ../../shared/gnatinstallhandler.c
 
diff --git a/c/src/lib/libbsp/powerpc/gen5200/Makefile.am b/c/src/lib/libbsp/powerpc/gen5200/Makefile.am
index c6afc9990b..a4e7b1cc30 100644
--- a/c/src/lib/libbsp/powerpc/gen5200/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/gen5200/Makefile.am
@@ -130,6 +130,7 @@ libbsp_a_SOURCES += tod/todcfg.c tod/pcf8563.c tod/pcf8563.h \
 
 # startup
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/Makefile.am b/c/src/lib/libbsp/powerpc/gen83xx/Makefile.am
index f8dd80c3d2..7ec8a9cc18 100644
--- a/c/src/lib/libbsp/powerpc/gen83xx/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/gen83xx/Makefile.am
@@ -53,6 +53,7 @@ libbsp_a_SOURCES =
 # startup
 libbsp_a_SOURCES += \
 	../../shared/bootcard.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/bsppredriverhook.c \
 	../../shared/sbrk.c \
 	../../shared/gnatinstallhandler.c \
diff --git a/c/src/lib/libbsp/powerpc/haleakala/Makefile.am b/c/src/lib/libbsp/powerpc/haleakala/Makefile.am
index b121b08e37..ac971b7992 100644
--- a/c/src/lib/libbsp/powerpc/haleakala/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/haleakala/Makefile.am
@@ -29,6 +29,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bspreset_loop.c \
     startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bsppredriverhook.c ../../shared/bspgetworkarea.c \
     ../../shared/sbrk.c \
     ../../shared/gnatinstallhandler.c mmu/mmu_405.c mmu/mmu_405asm.S 
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am b/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am
index af7a71f723..c9d1ff7387 100644
--- a/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/Makefile.am
@@ -49,6 +49,7 @@ libbsp_a_SOURCES += ../../powerpc/shared/startup/bspstart.c \
     ../../powerpc/shared/startup/pgtbl_activate.c \
 	../../powerpc/shared/startup/ppc_idle.c \
     ../../powerpc/shared/startup/sbrk.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bspclean.c \
     ../../shared/gnatinstallhandler.c \
     startup/bspreset.c
diff --git a/c/src/lib/libbsp/powerpc/mpc55xxevb/Makefile.am b/c/src/lib/libbsp/powerpc/mpc55xxevb/Makefile.am
index 7a0f5843c7..4d272134a1 100644
--- a/c/src/lib/libbsp/powerpc/mpc55xxevb/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mpc55xxevb/Makefile.am
@@ -63,6 +63,7 @@ include_bsp_HEADERS += include/console-linflex.h
 
 # startup
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
 libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/src/stackalloc.c
diff --git a/c/src/lib/libbsp/powerpc/mpc8260ads/Makefile.am b/c/src/lib/libbsp/powerpc/mpc8260ads/Makefile.am
index f2f6f154b7..024d627ad0 100644
--- a/c/src/lib/libbsp/powerpc/mpc8260ads/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mpc8260ads/Makefile.am
@@ -52,6 +52,7 @@ libbsp_a_SOURCES += irq/irq.c
 libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../shared/startup/bspidle.c startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/gnatinstallhandler.c startup/cpuinit.c \
     ../../shared/bspgetworkarea.c
 
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am b/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
index c9573ea1b4..c768a9c5c3 100644
--- a/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
@@ -54,6 +54,7 @@ libbsp_a_SOURCES += startup/bspstart.c \
     ../../powerpc/shared/startup/bsppredriverhook.c \
     ../../powerpc/shared/startup/zerobss.c \
     ../../powerpc/shared/startup/sbrk.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bspclean.c \
     ../../shared/gnatinstallhandler.c
 # tod
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am b/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
index 8794f5fdb2..3edfaec76f 100644
--- a/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES += startup/bspstart.c \
     ../../powerpc/shared/startup/zerobss.c \
     ../../powerpc/shared/startup/bspgetworkarea.c \
     ../../powerpc/shared/startup/sbrk.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/bspclean.c \
     ../../shared/gnatinstallhandler.c startup/bspreset.c \
     ../../powerpc/shared/startup/probeMemEnd.c
diff --git a/c/src/lib/libbsp/powerpc/psim/Makefile.am b/c/src/lib/libbsp/powerpc/psim/Makefile.am
index a66cf42feb..6ed9dee4d3 100644
--- a/c/src/lib/libbsp/powerpc/psim/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/psim/Makefile.am
@@ -36,6 +36,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c startup/bspstart.c \
     ../../shared/bspgetworkarea.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../powerpc/shared/startup/sbrk.c ../../shared/gnatinstallhandler.c
 
 # pclock
diff --git a/c/src/lib/libbsp/powerpc/qemuppc/Makefile.am b/c/src/lib/libbsp/powerpc/qemuppc/Makefile.am
index 8c0d1186f5..6764dc252a 100644
--- a/c/src/lib/libbsp/powerpc/qemuppc/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/qemuppc/Makefile.am
@@ -32,6 +32,7 @@ startup_SOURCES = ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c \
     startup/cmain.c startup/bspstart.c startup/bsppanic.c
 # pclock
diff --git a/c/src/lib/libbsp/powerpc/qoriq/Makefile.am b/c/src/lib/libbsp/powerpc/qoriq/Makefile.am
index b2c778bb07..ef42f6c9be 100644
--- a/c/src/lib/libbsp/powerpc/qoriq/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/qoriq/Makefile.am
@@ -65,6 +65,7 @@ libbsp_a_SOURCES =
 # Startup
 libbsp_a_SOURCES += \
 	../../shared/bootcard.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/sbrk.c \
 	../../shared/gnatinstallhandler.c \
 	../../shared/bspclean.c \
diff --git a/c/src/lib/libbsp/powerpc/ss555/Makefile.am b/c/src/lib/libbsp/powerpc/ss555/Makefile.am
index 61f615e131..d349841bb2 100644
--- a/c/src/lib/libbsp/powerpc/ss555/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/ss555/Makefile.am
@@ -36,6 +36,7 @@ libbsp_a_SOURCES += console/console.c
 libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     startup/bspstart.c ../../shared/bootcard.c startup/iss555.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/sbrk.c ../../shared/gnatinstallhandler.c start/start.S \
     ../../shared/bspgetworkarea.c
 # tm27supp
diff --git a/c/src/lib/libbsp/powerpc/t32mppc/Makefile.am b/c/src/lib/libbsp/powerpc/t32mppc/Makefile.am
index e37b740eed..d7bb2b907a 100644
--- a/c/src/lib/libbsp/powerpc/t32mppc/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/t32mppc/Makefile.am
@@ -44,6 +44,7 @@ libbsp_a_SOURCES =
 # Startup
 libbsp_a_SOURCES += \
 	../../shared/bootcard.c \
+	../../shared/getentropy-cpucounter.c \
 	../../shared/bsppredriverhook.c \
 	../../shared/sbrk.c \
 	../../shared/gnatinstallhandler.c \
diff --git a/c/src/lib/libbsp/powerpc/tqm8xx/Makefile.am b/c/src/lib/libbsp/powerpc/tqm8xx/Makefile.am
index 29044518cf..0622bc909f 100644
--- a/c/src/lib/libbsp/powerpc/tqm8xx/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/tqm8xx/Makefile.am
@@ -62,6 +62,7 @@ libbsp_a_SOURCES += ../../shared/bspclean.c \
     ../../shared/bsppredriverhook.c \
     ../shared/startup/bspidle.c \
     startup/bspstart.c startup/bspgetworkarea.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/mmutlbtab.c startup/cpuinit.c ../../shared/sbrk.c \
     ../../shared/gnatinstallhandler.c
 
diff --git a/c/src/lib/libbsp/powerpc/virtex/Makefile.am b/c/src/lib/libbsp/powerpc/virtex/Makefile.am
index e355e9eeeb..cec4b6be8d 100644
--- a/c/src/lib/libbsp/powerpc/virtex/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/virtex/Makefile.am
@@ -45,6 +45,7 @@ libbsp_a_LIBADD =
 libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bspgetworkarea.c \
     ../../shared/bspreset_loop.c \
     startup/bspstart.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bsppredriverhook.c \
     ../../shared/sbrk.c ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += ../shared/src/bsp-start-zero.S
diff --git a/c/src/lib/libbsp/powerpc/virtex4/Makefile.am b/c/src/lib/libbsp/powerpc/virtex4/Makefile.am
index 4b996e041f..da6abd92b0 100644
--- a/c/src/lib/libbsp/powerpc/virtex4/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/virtex4/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES = startup/bspclean.c \
                    ../../shared/bspgetworkarea.c \
                    startup/bspstart.c \
                    ../../shared/bootcard.c \
+                   ../../shared/getentropy-cpucounter.c \
                    ../../shared/sbrk.c \
                    ../../shared/gnatinstallhandler.c \
                    ../shared/src/memcpy.c
diff --git a/c/src/lib/libbsp/powerpc/virtex5/Makefile.am b/c/src/lib/libbsp/powerpc/virtex5/Makefile.am
index eaa7e22a72..635661e7df 100644
--- a/c/src/lib/libbsp/powerpc/virtex5/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/virtex5/Makefile.am
@@ -32,6 +32,7 @@ libbsp_a_SOURCES = startup/bspclean.c \
                    ../../shared/bspgetworkarea.c \
                    startup/bspstart.c \
                    ../../shared/bootcard.c \
+                   ../../shared/getentropy-cpucounter.c \
                    ../../shared/sbrk.c \
                    ../../shared/gnatinstallhandler.c \
                    ../shared/src/memcpy.c
diff --git a/c/src/lib/libbsp/sh/gensh1/Makefile.am b/c/src/lib/libbsp/sh/gensh1/Makefile.am
index 1fd30f8f4a..919f647f98 100644
--- a/c/src/lib/libbsp/sh/gensh1/Makefile.am
+++ b/c/src/lib/libbsp/sh/gensh1/Makefile.am
@@ -37,6 +37,7 @@ libbsp_a_SOURCES += \
     ../../shared/bspclean.c ../../shared/bspreset_loop.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/sbrk.c ../../shared/bootcard.c ../shared/bsphwinit.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c
 # scitab
 libbsp_a_SOURCES += scitab.c
diff --git a/c/src/lib/libbsp/sh/gensh2/Makefile.am b/c/src/lib/libbsp/sh/gensh2/Makefile.am
index ba58a211cd..9a0c130fc9 100644
--- a/c/src/lib/libbsp/sh/gensh2/Makefile.am
+++ b/c/src/lib/libbsp/sh/gensh2/Makefile.am
@@ -38,6 +38,7 @@ libbsp_a_SOURCES += startup/hw_init.c \
     ../../shared/bsppredriverhook.c \
     ../shared/startup/bspstart.c \
     ../../shared/bspgetworkarea.c ../../shared/sbrk.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c ../../shared/bspclean.c \
     ../shared/bsphwinit.c
 # scitab
diff --git a/c/src/lib/libbsp/sh/gensh4/Makefile.am b/c/src/lib/libbsp/sh/gensh4/Makefile.am
index 995c149004..9f41b8a18d 100644
--- a/c/src/lib/libbsp/sh/gensh4/Makefile.am
+++ b/c/src/lib/libbsp/sh/gensh4/Makefile.am
@@ -31,6 +31,7 @@ libbsp_a_SOURCES += \
     ../../shared/bsppredriverhook.c ../shared/startup/bspstart.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/bspclean.c ../../shared/sbrk.c ../../shared/bootcard.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/gnatinstallhandler.c ../shared/bsphwinit.c
 # console
 libbsp_a_SOURCES += console/console.c ../../shared/dummy_printk_support.c
diff --git a/c/src/lib/libbsp/sh/shsim/Makefile.am b/c/src/lib/libbsp/sh/shsim/Makefile.am
index fc0d77a459..39ab3f4e7a 100644
--- a/c/src/lib/libbsp/sh/shsim/Makefile.am
+++ b/c/src/lib/libbsp/sh/shsim/Makefile.am
@@ -32,7 +32,9 @@ libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../shared/startup/bspstart.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bspclean.c
-libbsp_a_SOURCES += ../../shared/sbrk.c ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/sbrk.c
+libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += ../shared/bsphwinit.c
 libbsp_a_SOURCES += startup/sysexit.c
diff --git a/c/src/lib/libbsp/shared/getentropy-cpucounter.c b/c/src/lib/libbsp/shared/getentropy-cpucounter.c
new file mode 100644
index 0000000000..15c8648047
--- /dev/null
+++ b/c/src/lib/libbsp/shared/getentropy-cpucounter.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2017 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+/*
+ * ATTENTION: THIS IS A VERY LIMITED ENTROPY SOURCE.
+ *
+ * This implementation uses a time-based value for it's entropy. The only thing
+ * that makes it random are interrupts from external sources. Don't use it if
+ * you need for example a strong crypto.
+ */
+
+#include <unistd.h>
+#include <string.h>
+#include <rtems/sysinit.h>
+#include <rtems/counter.h>
+
+int getentropy(void *ptr, size_t n)
+{
+	uint8_t *dest = ptr;
+
+	while (n > 0) {
+		rtems_counter_ticks ticks;
+
+		ticks = rtems_counter_read();
+
+		if (n >= sizeof(ticks)) {
+			memcpy(dest, &ticks, sizeof(ticks));
+			n -= sizeof(ticks);
+			dest += sizeof(ticks);
+		} else {
+			/*
+			 * Fill the remaining bytes with only the least
+			 * significant byte of the time. That is the byte with
+			 * the most changes.
+			 */
+			*dest = ticks & 0xFF;
+			--n;
+			++dest;
+		}
+	}
+
+	return 0;
+}
diff --git a/c/src/lib/libbsp/sparc/erc32/Makefile.am b/c/src/lib/libbsp/sparc/erc32/Makefile.am
index 3c15887d46..037bf8a7d7 100644
--- a/c/src/lib/libbsp/sparc/erc32/Makefile.am
+++ b/c/src/lib/libbsp/sparc/erc32/Makefile.am
@@ -33,6 +33,7 @@ libbsp_a_SOURCES += startup/bsppredriver.c
 libbsp_a_SOURCES += ../../sparc/shared/startup/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/setvec.c
 libbsp_a_SOURCES += startup/spurious.c
diff --git a/c/src/lib/libbsp/sparc/leon2/Makefile.am b/c/src/lib/libbsp/sparc/leon2/Makefile.am
index 8ec7306ebc..545111ea07 100644
--- a/c/src/lib/libbsp/sparc/leon2/Makefile.am
+++ b/c/src/lib/libbsp/sparc/leon2/Makefile.am
@@ -37,6 +37,7 @@ libbsp_a_SOURCES += startup/bsppredriver.c
 libbsp_a_SOURCES += startup/bspstart.c
 libbsp_a_SOURCES += ../../sparc/shared/startup/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += startup/setvec.c
 libbsp_a_SOURCES += startup/spurious.c
diff --git a/c/src/lib/libbsp/sparc/leon3/Makefile.am b/c/src/lib/libbsp/sparc/leon3/Makefile.am
index 5e83f1382d..bf8fafc584 100644
--- a/c/src/lib/libbsp/sparc/leon3/Makefile.am
+++ b/c/src/lib/libbsp/sparc/leon3/Makefile.am
@@ -38,6 +38,7 @@ libbsp_a_SOURCES =
 libbsp_a_SOURCES += startup/bspclean.c
 libbsp_a_SOURCES += \
     ../../shared/bootcard.c startup/bspstart.c \
+    ../../shared/getentropy-cpucounter.c \
     startup/bsppredriver.c \
     ../../sparc/shared/startup/bspgetworkarea.c ../../shared/sbrk.c \
     startup/setvec.c \
diff --git a/c/src/lib/libbsp/sparc64/niagara/Makefile.am b/c/src/lib/libbsp/sparc64/niagara/Makefile.am
index 9f3c2e8352..d7bba6325f 100644
--- a/c/src/lib/libbsp/sparc64/niagara/Makefile.am
+++ b/c/src/lib/libbsp/sparc64/niagara/Makefile.am
@@ -41,6 +41,7 @@ dist_project_lib_DATA += ../shared/startup/linkcmds
 startup_SOURCES = startup/bspclean.c startup/m5op_sparc.S \
     ../../shared/bsppredriverhook.c \
     ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/bspstart.c \
     ../shared/startup/setvec.c \
diff --git a/c/src/lib/libbsp/sparc64/usiii/Makefile.am b/c/src/lib/libbsp/sparc64/usiii/Makefile.am
index 709252dc78..a3c4aadf9d 100644
--- a/c/src/lib/libbsp/sparc64/usiii/Makefile.am
+++ b/c/src/lib/libbsp/sparc64/usiii/Makefile.am
@@ -87,6 +87,7 @@ dist_project_lib_DATA += ../shared/startup/linkcmds
 startup_SOURCES = ../../shared/bspclean.c \
     ../../shared/bspstart.c \
     ../../shared/bootcard.c ../../shared/sbrk.c \
+    ../../shared/getentropy-cpucounter.c \
     ../../shared/bspgetworkarea.c \
     ../../shared/bsppredriverhook.c \
     ../shared/startup/setvec.c \
diff --git a/c/src/lib/libbsp/v850/gdbv850sim/Makefile.am b/c/src/lib/libbsp/v850/gdbv850sim/Makefile.am
index a54a787ddb..ba09ec04b2 100644
--- a/c/src/lib/libbsp/v850/gdbv850sim/Makefile.am
+++ b/c/src/lib/libbsp/v850/gdbv850sim/Makefile.am
@@ -34,6 +34,7 @@ libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
 libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
 libbsp_a_SOURCES += ../../shared/bspstart.c
 libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/getentropy-cpucounter.c
 libbsp_a_SOURCES += ../../shared/sbrk.c
 libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
 libbsp_a_SOURCES += startup/bspreset.c