Bug 454026 - cannot compile ruby modules and extensions on ppc64
cannot compile ruby modules and extensions on ppc64
Status: CLOSED WONTFIX
Product: Fedora
Classification: Fedora
Component: redhat-rpm-config (Show other bugs)
9
ppc64 Linux
low Severity medium
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Assigned To: Jon Masters
Fedora Extras Quality Assurance
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2008-07-03 17:22 EDT by Thiago Jung Bauermann
Modified: 2009-07-14 14:00 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-07-14 14:00:19 EDT
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Description Thiago Jung Bauermann 2008-07-03 17:22:25 EDT
Description of problem:

Ruby packages which use the autoconf.rb mechanism fail to compile on ppc64.
I experienced this problem when I downloaded eruby from
http://www.modruby.net/en/index.rbx/eruby/download.html and tried to compile it.

The .o files are generated as 64-bit, but the make process tries to link them as
a 32-bit app or lib. This is due to missing -m64 flag in the link command line.

The compile and link flags are obtained from
/usr/lib64/ruby/1.8/powerpc64-linux/rbconfig.rb. If I hand edit the file to
include the flag in CONFIG["LDFLAGS"] and CONFIG["LDSHARED"], then I can
successfuly build the application. Another alternative IMHO is to change
CONFIG["CC"] to gcc -m64, then the -m64 which is currently in CONFIG["CFLAGS"]
is not necessary anymore.

Version-Release number of selected component (if applicable):

ruby-libs-1.8.6.230-4.fc9.ppc64

How reproducible:

Always

Steps to Reproduce:
1. Download eruby from http://www.modruby.net/en/index.rbx/eruby/download.html
2. cd eruby-1.0.5
3. RUBYLIB=/usr/lib64/ruby/1.8/powerpc64-linux ./configure.rb
4. make
  
Actual results:

gcc -L.  -rdynamic -Wl,-export-dynamic -L/usr/lib64 eruby_logo.o eruby_main.o
liberuby.a -lruby -lpthread -ldl -lcrypt -lm  -o
eruby
/usr/bin/ld: skipping incompatible /usr/lib64/libruby.so when searching for -lruby
/usr/bin/ld: skipping incompatible /usr/lib64/libpthread.so when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib64/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib64/libdl.so when searching for -ldl
/usr/bin/ld: skipping incompatible /usr/lib64/libdl.a when searching for -ldl
/usr/bin/ld: skipping incompatible /usr/lib64/libcrypt.so when searching for -lcrypt
/usr/bin/ld: skipping incompatible /usr/lib64/libcrypt.a when searching for -lcrypt
/usr/bin/ld: skipping incompatible /usr/lib64/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib64/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib64/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib64/libc.a when searching for -lc
/usr/bin/ld: powerpc:common64 architecture of input file `eruby_logo.o' is
incompatible with powerpc:common output
/usr/bin/ld: powerpc:common64 architecture of input file `eruby_main.o' is
incompatible with powerpc:common output
/usr/bin/ld: powerpc:common64 architecture of input file
`liberuby.a(eruby_lib.o)' is incompatible with powerpc:common output
eruby_main.o: In function `defout_write':
/home/bauermann/scratchpad/lamp-fixes/eruby/eruby-1.0.5/eruby_main.c:396:
relocation truncated to fit: R_PPC64_REL24 against `r
b_obj_as_string'
/home/bauermann/scratchpad/lamp-fixes/eruby/eruby-1.0.5/eruby_main.c:397:
relocation truncated to fit: R_PPC64_REL24 against `r
b_str_cat'
eruby_main.o: In function `print_http_headers':
/home/bauermann/scratchpad/lamp-fixes/eruby/eruby-1.0.5/eruby_main.c:295:
relocation truncated to fit: R_PPC64_REL24 against `g
etenv'
eruby_main.o: In function `printf':
/usr/include/bits/stdio2.h:105: relocation truncated to fit: R_PPC64_REL24
against `__printf_chk'
eruby_main.o: In function `print_http_headers':
/home/bauermann/scratchpad/lamp-fixes/eruby/eruby-1.0.5/eruby_main.c:298:
relocation truncated to fit: R_PPC64_REL24 against `g
etenv'
<SNIP>
eruby_main.o: In function `print_http_headers':
/home/bauermann/scratchpad/lamp-fixes/eruby/eruby-1.0.5/eruby_main.c:302:
additional relocation overflows omitted from the output
collect2: ld returned 1 exit status
make: *** [eruby] Error 1

Expected results:

gcc -m64 -L.  -rdynamic -Wl,-export-dynamic -L/usr/lib64 eruby_logo.o
eruby_main.o liberuby.a -lruby -lpthread -ldl -lcrypt -lm  -o eruby
gcc -m64 -shared  -o eruby.so eruby_ext.o -L/usr/lib64 liberuby.a -lruby
-lpthread -ldl -lcrypt -lm
$
Comment 1 Akira TAGOH 2008-07-03 23:13:31 EDT
I'd say this isn't a ruby's fault. all of the parameters in rbconfig.rb was
auto-generated from config.status which was generated by configure script with
some envvars and options from %configure macro in rpm. usually CFLAGS and
LDFLAGS are used together to build autotoolized and libtoolized applications.
however just giving CFLAGS to ld directly isn't acceptable way. which
autoconf.rb would takes.

So I'd suggest to add -m64 to LDFLAGS in %configure macro for 64bit archs unless
we don't do that intentionally.
Or the kind of $RPM_OPT_FLAGS for LDFLAGS may be helpful for non-libtoolized
applications.

reassigning to redhat-rpm-config so far.
Comment 2 Thiago Jung Bauermann 2008-07-04 09:46:35 EDT
LDSHARED also needs to have -m64.

There's a school of thought which says that ABI-changing options such as -m64
should go in CC and not CFLAGS. See:

http://www.mail-archive.com/autoconf@gnu.org/msg17168.html

I don't really have an opinion, though.
Comment 3 Bug Zapper 2009-06-09 21:54:25 EDT
This message is a reminder that Fedora 9 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
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Comment 4 Bug Zapper 2009-07-14 14:00:19 EDT
Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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