[Tinyos Core WG] 2.1 safe testing

[Philip Levis]

I am unable to compile basic apps safely for the micaz. When I compile
Blink safe, it uses less RAM and I get two warnings:

darkness ~...apps/Blink -> make micaz 
mkdir -p build/micaz
    compiling BlinkAppC to a micaz binary
ncc -o build/micaz/main.exe <snip>
    compiled BlinkAppC to build/micaz/main.exe
            2096 bytes in ROM
              51 bytes in RAM

darkness ~...apps/Blink -> make micaz safe
mkdir -p build/micaz
    compiling BlinkAppC to a micaz binary
ncc -o build/micaz/main.exe <snip>

/home/pal/src/tinyos-2.x/tos/system/SchedulerBasicP.nc: In function
'SchedulerBasicP$Scheduler$init':
/home/pal/src/tinyos-2.x/tos/system/SchedulerBasicP.nc:117: warning:
passing argument 1 of 'memset' discards qualifiers from pointer target
type
/home/pal/src/tinyos-2.x/tos/lib/timer/VirtualizeTimerC.nc: In function
'VirtualizeTimerC$0$updateFromTimer$runTask':
/home/pal/src/tinyos-2.x/tos/lib/timer/VirtualizeTimerC.nc:96: warning:
overflow in implicit constant conversion
    compiled BlinkAppC to build/micaz/main.exe
            2268 bytes in ROM
              31 bytes in RAM

Unsafe:
51 bytes of Heap RAM in build/micaz/main.exe, usage by module:
       2  MeasureClockC
       4  SchedulerBasicP
       5  AlarmToTimerC
      13  Atm128AlarmAsyncP
      27  VirtualizeTimerC

Safe:
31 bytes of Heap RAM in build/micaz/main.exe, usage by module:
       2  MeasureClockC
       3  AlarmToTimerC
       4  SchedulerBasicP
       7  Atm128AlarmAsyncP
      15  VirtualizeTimerC

I've attached the two app.c files for comparison.

Is this because my setup is not quite right, or an issue with safe
tinyos?

Phil


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