On 11/01/13 11:36, Nathan Hüsken wrote:
Hi,
I was succesfull in building ghc (pulled from git) to compile for
arm-linux-androideabi!
Now using "inplace/bin/ghc-stage1 -dcore-lint -debug" I compiler this
Main.hs:
main = putStrLn "Hello, World"
I get an executable, which I can run on my android device. Unfortantly
it segfaults.
Running it with ./Main +RTS -DS gives:
cap 0: initialised
Now I am trying to debug this in gdb. When I try to display the stack
(which should be in r13 on arm of I understand correctly, I get);
First establish whether the crash is in C or Haskell: what does 'bt'
tell you in gdb?
Cheers,
Simon
(gdb) p8 $r13
0xbef00a74: 0x0
0xbef00a70: 0x0
0xbef00a6c: 0x3c2e74
0xbef00a68: 0x530350
0xbef00a64: 0x0
0xbef00a60: 0x0
0xbef00a5c: 0x0
0xbef00a58: 0x0
And now I am clueless. So I tried the good old printf debugging in the
rts. Using this, I see that it gets before the call to
scheduleWaitThread in the function rts_evalLazyIO (in RtsAPI.c).
But when I put a printf in the beginning of scheduleWaitThread (in
Schedule.c) it is not shown.
What else can I do to find out more?
Thanks!
Nathan
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