On 2/23/13, Stephen Paul Weber wrote:

Somebody claiming to be Gabor Greif wrote:

...

I have finally have a cross compiler building, but encounter a new problem with a simple "Hello World" program not working.

HeapProfTimer endlessly and nothing useful happens. Any idea what could be wrong, or how I could tackle debugging this problem. The native build of the same program with same compiler version (HEAD) works well.

This may be unrelated, but I've had a similar issue that I haven't finished

debugging yet.

Is the LANG environment variable set? Trying running with LANG=""

Hi Stephen! This did not help. But you pointed me to the right direction :-) I observed that in each loop 'iconv_open' gets called, but returns a failure (-1) Breakpoint 1, 0x0fdac770 in iconv_open () from /lib/tls/libc.so.6 (gdb) p (char*)$r3 $1 = 0x3010401c "ANSI_X3.4-1968" (gdb) p (char*)$r4 $2 = 0x30104008 "UTF-32BE" (gdb) call iconv_open("ANSI_X3.4-1968","UTF-32BE") $3 = -1 (gdb) call iconv_open("ASCII","ASCII") $4 = 272079520 (gdb) call iconv_open("ASCII","UTF-32BE") $5 = -1 (gdb) call iconv_open("ASCII","UTF-32") $6 = -1 (gdb) call iconv_open("ASCII","UTF-8") $7 = 272088200 (gdb) call iconv_open("ANSI_X3.4-1968","UTF-8") $8 = 272120976 As you see my manual attempts to get a converter towards UTF-8 worked. The main problem is that upon failure, an error with a message is thrown, which restarts the scheduler loop again, but cannot display any message because in order to do that it needs to open iconv again... A veritable catch-22. So all keeps looping and nothing happens. Here is the relevant code from base/GHC/IO/Encoding/Iconv.hs: newIConv from to rec fn = -- Assume charset names are ASCII withCAString from $ \ from_str -> withCAString to $ \ to_str -> do iconvt <- throwErrnoIfMinus1 "mkTextEncoding" $ hs_iconv_open to_str from_str let iclose = throwErrnoIfMinus1_ "Iconv.close" $ hs_iconv_close iconvt return BufferCodec{ encode = fn iconvt, recover = rec, close = iclose, -- iconv doesn't supply a way to save/restore the state getState = return (), setState = const $ return () } What is disturbing me, that this simple hello-world program used to work a year ago, with no iconv-related problems at all, and I am wondering what has changed since 7.5 and how to salvage the situation now? I am thankful for any suggestions, cheers, Gabor

-- Stephen Paul Weber, @singpolyma See http://singpolyma.net for how I prefer to be contacted edition right joseph