Re: Assembler errors when compiling nofib benchmarks with -optc-g

Hi guys, I am new on this nofib library, could you tell me where can I download it? Thanks, Guilherme Kely de Melo Oliveira 2009/10/31 Henry DeYoung

Hi,

I am working with another grad student on a course project on cache behavior of GHC programs. The first part of this project is to reproduce some of the measurements from Nethercote and Mycroft's "The Cache Behavior of Large Lazy Functional Programs on Stock Hardware".

We've decided to use oprofile to sample cache misses recorded by the performance counters. To get reasonable information out of oprofile, I'd like to compile the nofib benchmarks via C with export of debugging symbols.

As a first step toward this, I've changed the NoFibHcOpts variable in nofib/mk/boilerplate.mk to be:

NoFibHcOpts = -O -fvia-C -pgmc gcc -optc-g

However, when I do make in the nofib/real/compress directory, for example, I get the following error message:

==nofib== compress: time to compile BinConv follows... /usr0/software/ghc-6.10.1/inplace/bin/ghc-stage2 -H32m -O -O -fvia-C -pgmc gcc -optc-g -Rghc-timing -H32m -hisuf hi -c BinCon v.hs -o BinConv.o <> 1.27user 0.12system 0:01.39elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+21251minor)pagefaults 0swaps ==nofib== compress: size of BinConv.o follows... text data bss dec hex filename 6677 192 8 6877 1add BinConv.o ==nofib== compress: time to compile BinTest follows... /usr0/software/ghc-6.10.1/inplace/bin/ghc-stage2 -H32m -O -O -fvia-C -pgmc gcc -optc-g -Rghc-timing -H32m -hisuf hi -c BinTes t.hs -o BinTest.o /tmp/ghc14909_0/ghc14909_0.s: Assembler messages:

/tmp/ghc14909_0/ghc14909_0.s:54:0: Error: unassigned file number 1

/tmp/ghc14909_0/ghc14909_0.s:54:0: Error: junk at end of line, first unrecognized character is `0'

/tmp/ghc14909_0/ghc14909_0.s:56:0: Error: unassigned file number 1

/tmp/ghc14909_0/ghc14909_0.s:56:0: Error: junk at end of line, first unrecognized character is `0'

/tmp/ghc14909_0/ghc14909_0.s:57:0: Error: unassigned file number 1

/tmp/ghc14909_0/ghc14909_0.s:57:0: Error: junk at end of line, first unrecognized character is `0'

/tmp/ghc14909_0/ghc14909_0.s:61:0: Error: unassigned file number 1

/tmp/ghc14909_0/ghc14909_0.s:61:0: Error: junk at end of line, first unrecognized character is `0'

etc...

Curiously, if I remove the -optc-g flag, but still use -fvia-C and -pgmc gcc, everything works fine.

Do you have any ideas what might be causing these errors? Is there a fix or workaround to get the C compiler to export debugging symbols?

Second, it appears that a make with -fvia-C -pgmc gcc removes the C source after it has been compiled. Is there a way to preserve this source so that it can be annotated line by line using oprofile?

I apologize if these questions are rudimentary; this is my first experience with GHC and nofib. Also, if these questions should be directed toward a different mailing list, please let me know.

Thanks for any help you can give with this!

Henry

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