What I get from this is that ppc64 needs -mminimal-toc at least when
building a shared libR.so. pbeta.c has actually been simplified a lot, so
I guess this may not actually be related to that but rather to the
progress of the linker.
Note that the message is about a failed optimization. I have seen those
far too often in gcc 4.0.x (you cannot even compile R on i686 with -O2 on
gcc 4.0.[123] on our FC3 system). As such I don't think it is something
we want to hardcode into R's configure, but I will add a note to the
manual.
I presume this the GNU linker. I suspect that gcc on ppc64 can be used
with other linkers (and maybe usually is on AIX and MacOS X), so we would
have to apply the flag very specifically.
On Sun, 9 Apr 2006, Dirk Eddelbuettel wrote:
[ Ooops, resending, this time with the promised two additional
recipients. --Dirk ]
On 9 April 2006 at 07:44, Dirk Eddelbuettel wrote:
|
| Hi Andreas,
|
| On 23 April 2006 at 12:07, Andreas Jochens wrote:
| | Package: r-base
| | Version: 2.2.1.svn37668-1
| | Severity: wishlist
| | Tags: patch
| |
| |
| | When building 'r-base' on ppc64/unstable, I get the following error:
| |
| |
| | gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -fpic
-std=gnu99 -O2 -pipe -c vfonts.c -o vfonts.o
| | gfortran -fpic -O2 -pipe -c xxxpr.f -o xxxpr.o
| | gcc -shared -o libR.so Rembedded.o CConverters.o CommandLineArgs.o
Rdynload.o Renviron.o RNG.o apply.o arithmetic.o apse.o array.o attrib.o base.o
bind.o builtin.o character.o coerce.o colors.o complex.o connections.o context.o
cov.o cum.o dcf.o datetime.o debug.o deparse.o deriv.o dotcode.o dounzip.o
dstruct.o duplicate.o engine.o envir.o errors.o eval.o format.o fourier.o
gevents.o gram.o gram-ex.o graphics.o identical.o internet.o iosupport.o lapack.o
list.o localecharset.o logic.o main.o mapply.o match.o memory.o model.o names.o
objects.o optim.o optimize.o options.o par.o paste.o pcre.o platform.o plot.o
plot3d.o plotmath.o print.o printarray.o printvector.o printutils.o qsort.o
random.o regex.o registration.o relop.o rlocale.o saveload.o scan.o seq.o
serialize.o size.o sort.o source.o split.o sprintf.o startup.o subassign.o
subscript.o subset.o summary.o sysutils.o unique.o util.o version.o vfonts.o
xxxpr.o `ls ../appl/*.o ../nmath/*.o ../unix/*.o 2>/dev/nul!
l`!
-lgfortran -lm -lgcc_s -lreadline -lpcre -lbz2 -lz -ldl -lm
| | /usr/bin/ld: ../nmath/pbeta.o(.text+0x40): sibling call optimization to
`bratio' does not allow automatic multiple TOCs; recompile with -mminimal-toc
or -fno-optimize-sibling-calls, or make `bratio' extern
| | /usr/bin/ld: final link failed: Bad value
| | collect2: ld returned 1 exit status
| | make[4]: *** [libR.so] Error 1
| | make[4]: Leaving directory `/r-base-2.2.1.svn37668/src/main'
| |
| |
| | With the attached patch 'r-base' can be compiled on ppc64.
|
| Very interesting. So that must have been gcc/gfortan/g++ 4.0.3-3, correct ?
|
| | diff -urN ../tmp-orig/r-base-2.2.1.svn37668/debian/rules ./debian/rules
| | --- ../tmp-orig/r-base-2.2.1.svn37668/debian/rules 2006-04-09
08:37:31.000000000 +0000
| | +++ ./debian/rules 2006-04-09 07:03:04.000000000 +0000
| | @@ -75,6 +75,10 @@
| | cxxcompiler = g++
| | optimflags = -O2 -pipe
| |
| | +ifeq ($(arch),powerpc64)
| | +optimflags += -mminimal-toc
| | +endif
| | +
| | # edd 04 Sep 2001 default compiler flags, lowered for m68k
| | #compilerflags = -O2
| | # m68k barks when using g77, and when gcc use -O2
|
| Thanks for the detailed patch. I have applied it to my debian/rules, and I am
| CCing two of upstream authors as a heads-up. The option should be generally
| required and not be Debian specific, correct? Do you know if other
| optimization flags make a difference? As I recall, pbeta got quite a bit of
| attention for its algorithmic performance and correctness, so it is
| interesting to see the compiler complain. Could we count on you for some
| minimal testing?
|
| Regards, Dirk
|
| --
| Hell, there are no rules here - we're trying to accomplish something.
| -- Thomas A. Edison
--
Brian D. Ripley, [EMAIL PROTECTED]
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University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
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