On Mon, 21 Jan 2013, rocon...@theorem.ca wrote:
On Mon, 21 Jan 2013, Karel Gardas wrote:
On 01/21/13 12:49 AM, rocon...@theorem.ca wrote:
On Sun, 20 Jan 2013, Karel Gardas wrote:
Okay, I patched the settings filed generted by ./configure in the
binary-dist and rank make install which completed. However,
pi@raspberrypi /tmp/bindist $ bin/ghc --make Main.hs
[1 of 1] Compiling Main ( Main.hs, Main.o )
Linking Main ...
pi@raspberrypi /tmp/bindist $ ./Main
Segmentation fault
pi@raspberrypi /tmp/bindist $ cat Main.hs
main = putStrLn "Hello World."
Damn it. So close. I don't know how make install succeded without
segfaulting.
Sigh! Go back to your build tree and try the same thing with
inplace/bin/ghc-stage2 and let us know if this works or not. BTW:
What's in Main.hs?
pi@raspberrypi /tmp $ ghc-7.6.1c/inplace/bin/ghc-stage2 Main.hs
[1 of 1] Compiling Main ( Main.hs, Main.o )
Linking Main ...
pi@raspberrypi /tmp $ ./Main
Hello World.
The stage2 compiler works fine inplace.
OK, so binary-dist not only corrupted your settings file, but also somehow
your compiler. Nice to see you are able to get working compiler on your RPi
board. Congratulations! :-)
Thanks. :)
So the binary-dist has a settings.in file. It is the configure step in the
binary-dist that generates the corrupt settings file.
I'll try to poke around to see where and why the stage2 compiler and the
binary-dist compiler differ.
I replaced the lib/ghc-7.6.1/settings built from the binary-dist which
read:
[("GCC extra via C opts", " -fwrapv"),
("C compiler command", "/usr/bin/gcc"),
("C compiler flags", " -fno-stack-protector "),
("ar command", "/usr/bin/ar"),
("ar flags", "q"),
("ar supports at file", "@ArSupportsAtFile@"),
("touch command", "touch"),
("dllwrap command", "/bin/false"),
("windres command", "/bin/false"),
("perl command", "/usr/bin/perl"),
("target os", "OSLinux"),
("target arch", "ArchARM {armISA = ARMv6, armISAExt = [VFPv2], armABI =
HARD}"),
("target word size", "4"),
("target has GNU nonexec stack", "False"),
("target has .ident directive", "True"),
("target has subsections via symbols", "False"),
("LLVM llc command", "llc"),
("LLVM opt command", "opt")
]
With the settings file from the build:
[("GCC extra via C opts", " -fwrapv"),
("C compiler command", "/usr/bin/gcc"),
("C compiler flags", " -fno-stack-protector -Wl,--hash-size=31
-Wl,--reduce-memory-overheads"),
("ar command", "/usr/bin/ar"),
("ar flags", "q"),
("ar supports at file", "YES"),
("touch command", "touch"),
("dllwrap command", "/bin/false"),
("windres command", "/bin/false"),
("perl command", "/usr/bin/perl"),
("target os", "OSLinux"),
("target arch", "ArchARM {armISA = ARMv6, armISAExt = [VFPv2], armABI =
HARD}"),
("target word size", "4"),
("target has GNU nonexec stack", "False"),
("target has .ident directive", "True"),
("target has subsections via symbols", "False"),
("LLVM llc command", "/usr/bin/llc-3.0"),
("LLVM opt command", "/usr/bin/opt-3.0")
]
and now ghc builds executables that do not segfault!
It seem that the configure program in the binary-dist needs some patching.
--
Russell O'Connor <http://r6.ca/>
``All talk about `theft,''' the general counsel of the American Graphophone
Company wrote, ``is the merest claptrap, for there exists no property in
ideas musical, literary or artistic, except as defined by statute.''
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