#1151: small program misbehaves with -fvia-C
----------------------------------------------+-----------------------------
Reporter: Stefan O'Rear <[EMAIL PROTECTED]> | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.7
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Multiple
Os: Multiple |
----------------------------------------------+-----------------------------
Old description:
> [EMAIL PROTECTED]:/tmp$ mkdir bug
> [EMAIL PROTECTED]:/tmp$ cd bug
> [EMAIL PROTECTED]:/tmp/bug$ echo 'main = interact $ (show :: Bool -> String)
> . read' > bug.hs
> [EMAIL PROTECTED]:/tmp/bug$ ghc -fasm bug.hs
> [EMAIL PROTECTED]:/tmp/bug$ echo -n False | ./a.out
> [EMAIL PROTECTED]:/tmp/bug$ rm *
> [EMAIL PROTECTED]:/tmp/bug$ echo 'main = interact $ (show :: Bool -> String)
> . read' > bug.hs
> [EMAIL PROTECTED]:/tmp/bug$ ghc -fvia-C bug.hs
> /tmp/ghc12591_0/ghc12591_0.hc: In function 'rr5_entry':
>
> /tmp/ghc12591_0/ghc12591_0.hc:33:0:
> warning: assignment makes integer from pointer without a cast
>
> /tmp/ghc12591_0/ghc12591_0.hc:36:0:
> warning: assignment makes integer from pointer without a cast
> /tmp/ghc12591_0/ghc12591_0.hc: In function 'srg_entry':
>
> /tmp/ghc12591_0/ghc12591_0.hc:108:0:
> warning: assignment makes integer from pointer without a cast
>
> /tmp/ghc12591_0/ghc12591_0.hc:111:0:
> warning: assignment makes integer from pointer without a cast
>
> /tmp/ghc12591_0/ghc12591_0.hc:115:0:
> warning: assignment makes integer from pointer without a cast
> /tmp/ghc12591_0/ghc12591_0.hc: In function 'Main_main_entry':
>
> /tmp/ghc12591_0/ghc12591_0.hc:153:0:
> warning: assignment makes integer from pointer without a cast
>
> /tmp/ghc12591_0/ghc12591_0.hc:156:0:
> warning: assignment makes integer from pointer without a cast
> /tmp/ghc12591_0/ghc12591_0.hc: In function 'ZCMain_main_entry':
>
> /tmp/ghc12591_0/ghc12591_0.hc:195:0:
> warning: assignment makes integer from pointer without a cast
>
> /tmp/ghc12591_0/ghc12591_0.hc:198:0:
> warning: assignment makes integer from pointer without a cast
> [EMAIL PROTECTED]:/tmp/bug$ echo -n False | ./a.out
> a.out: internal error: stg_ap_p_ret
> (GHC version 6.7.20070213 for i386_unknown_linux)
> Please report this as a GHC bug:
> http://www.haskell.org/ghc/reportabug
> Aborted
> [EMAIL PROTECTED]:/tmp/bug$
>
> The exact error seen depends in a not-yet-characterised way on the
> program;
> in addition to the above, correct behavior, immediate silent exit, and
> "Segmentation fault" have been seen.
>
> Brandon S. Allbery on #haskell was able to reproduce using
> powerpc_apple_darwin (20070213)
> Lennary Augustsson on #haskell was not, using 20070216 "i386, Mac OS X"
>
> Stefan
New description:
{{{
[EMAIL PROTECTED]:/tmp$ mkdir bug
[EMAIL PROTECTED]:/tmp$ cd bug
[EMAIL PROTECTED]:/tmp/bug$ echo 'main = interact $ (show :: Bool -> String)
. read' > bug.hs
[EMAIL PROTECTED]:/tmp/bug$ ghc -fasm bug.hs
[EMAIL PROTECTED]:/tmp/bug$ echo -n False | ./a.out
[EMAIL PROTECTED]:/tmp/bug$ rm *
[EMAIL PROTECTED]:/tmp/bug$ echo 'main = interact $ (show :: Bool -> String)
. read' > bug.hs
[EMAIL PROTECTED]:/tmp/bug$ ghc -fvia-C bug.hs
/tmp/ghc12591_0/ghc12591_0.hc: In function 'rr5_entry':
/tmp/ghc12591_0/ghc12591_0.hc:33:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc:36:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc: In function 'srg_entry':
/tmp/ghc12591_0/ghc12591_0.hc:108:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc:111:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc:115:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc: In function 'Main_main_entry':
/tmp/ghc12591_0/ghc12591_0.hc:153:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc:156:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc: In function 'ZCMain_main_entry':
/tmp/ghc12591_0/ghc12591_0.hc:195:0:
warning: assignment makes integer from pointer without a cast
/tmp/ghc12591_0/ghc12591_0.hc:198:0:
warning: assignment makes integer from pointer without a cast
[EMAIL PROTECTED]:/tmp/bug$ echo -n False | ./a.out
a.out: internal error: stg_ap_p_ret
(GHC version 6.7.20070213 for i386_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
Aborted
[EMAIL PROTECTED]:/tmp/bug$
}}}
The exact error seen depends in a not-yet-characterised way on the
program;
in addition to the above, correct behavior, immediate silent exit, and
"Segmentation fault" have been seen.
Brandon S. Allbery on #haskell was able to reproduce using
powerpc_apple_darwin (20070213)
Lennary Augustsson on #haskell was not, using 20070216 "i386, Mac OS X"
Stefan
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1151>
GHC <http://www.haskell.org/ghc/>
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