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-Alddlflags doesn't work (the way it should) on Linux #13000

Open p5pRT opened 11 years ago

p5pRT commented 11 years ago

Migrated from rt.perl.org#118199 (status was 'open')

Searchable as RT118199$

p5pRT commented 11 years ago

From @nwc10

If I configure perl to build as 32 bit on a 32/64 bit system​:

./Configure -des -Dusedevel -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32

the build fails. This is a re-run of make​:

./miniperl -Ilib make_ext.pl lib/auto/B/B.so MAKE=make LIBPERL_A=libperl.a LINKTYPE=dynamic   Making B (all) make[1]​: Entering directory `/home/nick/Perl/perl/ext/B' make[1]​: Leaving directory `/home/nick/Perl/perl/ext/B' Making all in ext/B make all PERL_CORE=1 LIBPERL_A=libperl.a LINKTYPE=dynamic make[1]​: Entering directory `/home/nick/Perl/perl/ext/B' rm -f ../../lib/auto/B/B.so cc -m32 -L/usr/local/lib -fstack-protector B.o -o ../../lib/auto/B/B.so \   \  
/usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 0 has invalid symbol index 12 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 1 has invalid symbol index 13 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 2 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 3 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 4 has invalid symbol index 12 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 5 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 6 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 7 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 8 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 9 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 10 has invalid symbol index 13 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 11 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 12 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 13 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 14 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 15 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 16 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 17 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 18 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 19 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 20 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 21 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 22 has invalid symbol index 22 /usr/lib/gcc/x86_64-linux-gnu/4.4.5/../../../../lib32/crt1.o​: In function `_start'​: (.text+0x18)​: undefined reference to `main' B.o​: In function `boot_B'​: B.c​:(.text+0x16)​: undefined reference to `PL_stack_sp'

The problem is that the -Alddlflags happens at the wrong time relative to everything else. Configure sets a default if none is set yet​:

  case "$lddlflags" in   '') case "$osname" in   beos) dflt='-nostart' ;;   haiku) dflt='-shared' ;;   hpux) dflt='-b';   case "$gccversion" in   '') dflt="$dflt +vnocompatwarnings" ;;   esac   ;;   linux|irix*|gnu*) dflt="-shared $optimize" ;;   next) dflt='none' ;;   solaris) dflt='-G' ;;   sunos) dflt='-assert nodefinitions' ;;   svr4*|esix*|nonstopux) dflt="-G $ldflags" ;;   *) dflt='none' ;;   esac   ;;   *) dflt="$lddlflags" ;;   esac

but because -A processing has already happened\, lddlflags is already set to something. This certainly isn't the intent of -A

./myconfig for the bust configuration​:

Summary of my perl5 (revision 5 version 19 subversion 1) configuration​:  
  Platform​:   osname=linux\, osvers=2.6.32-5-amd64\, archname=x86_64-linux   uname='linux gcc20 2.6.32-5-amd64 #1 smp mon jan 16 16​:22​:28 utc 2012 x86_64 gnulinux '   config_args='-des -Dusedevel -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32'   hint=recommended\, useposix=true\, d_sigaction=define   useithreads=undef\, usemultiplicity=undef   useperlio=define\, d_sfio=undef\, uselargefiles=define\, usesocks=undef   use64bitint=undef\, use64bitall=undef\, uselongdouble=undef   usemymalloc=n\, bincompat5005=undef   Compiler​:   cc='cc'\, ccflags ='-m32 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'\,   optimize='-O2'\,   cppflags='-m32 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'   ccversion=''\, gccversion='4.4.5'\, gccosandvers=''   intsize=4\, longsize=4\, ptrsize=4\, doublesize=8\, byteorder=1234   d_longlong=define\, longlongsize=8\, d_longdbl=define\, longdblsize=12   ivtype='long'\, ivsize=4\, nvtype='double'\, nvsize=8\, Off_t='off_t'\, lseeksize=8   alignbytes=4\, prototype=define   Linker and Libraries​:   ld='cc'\, ldflags =' -m32 -fstack-protector -L/usr/local/lib'   libpth=/usr/local/lib /lib/../lib /usr/lib/../lib /lib /usr/lib /lib64 /usr/lib64   libs=-lnsl -ldl -lm -lcrypt -lutil -lc   perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc   libc=/lib/libc-2.11.3.so\, so=so\, useshrplib=false\, libperl=libperl.a   gnulibc_version='2.11.3'   Dynamic Linking​:   dlsrc=dl_dlopen.xs\, dlext=so\, d_dlsymun=undef\, ccdlflags='-Wl\,-E'   cccdlflags='-fPIC'\, lddlflags=' -m32 -L/usr/local/lib -fstack-protector'

If I run Configure like this\, adding -shared​:

./Configure -des -Dusedevel -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32\ -shared

the build is fine (and all tests pass)

Nicholas Clark

p5pRT commented 11 years ago

From @tux

On Mon\, 27 May 2013 07​:00​:33 -0700\, Nicholas Clark (via RT) \perlbug\-followup@​perl\.org wrote​:

# New Ticket Created by Nicholas Clark # Please include the string​: [perl #118199] # in the subject line of all future correspondence about this issue. # \<URL​: https://rt-archive.perl.org/perl5/Ticket/Display.html?id=118199 >

If I configure perl to build as 32 bit on a 32/64 bit system​:

./Configure -des -Dusedevel -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32

the build fails. This is a re-run of make​:

./miniperl -Ilib make_ext.pl lib/auto/B/B.so MAKE=make LIBPERL_A=libperl.a LINKTYPE=dynamic Making B (all) make[1]​: Entering directory `/home/nick/Perl/perl/ext/B' make[1]​: Leaving directory `/home/nick/Perl/perl/ext/B' Making all in ext/B make all PERL_CORE=1 LIBPERL_A=libperl.a LINKTYPE=dynamic make[1]​: Entering directory `/home/nick/Perl/perl/ext/B' rm -f ../../lib/auto/B/B.so cc -m32 -L/usr/local/lib -fstack-protector B.o -o ../../lib/auto/B/B.so \ \

/usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 0 has invalid symbol index 12 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 1 has invalid symbol index 13 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 2 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 3 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 4 has invalid symbol index 12 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 5 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 6 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 7 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 8 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 9 has invalid symbol index 2 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 10 has invalid symbol index 13 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 11 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 12 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 13 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 14 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 15 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 16 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 17 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 18 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 19 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 20 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 21 has invalid symbol index 14 /usr/bin/ld​: /usr/lib/debug/usr/lib32/crt1.o(.debug_info)​: relocation 22 has invalid symbol index 22 /usr/lib/gcc/x86_64-linux-gnu/4.4.5/../../../../lib32/crt1.o​: In function `_start'​: (.text+0x18)​: undefined reference to `main' B.o​: In function `boot_B'​: B.c​:(.text+0x16)​: undefined reference to `PL_stack_sp'

The problem is that the -Alddlflags happens at the wrong time relative to everything else. Configure sets a default if none is set yet​:

case "$lddlflags" in
''\) case "$osname" in
          beos\) dflt='\-nostart' ;;
          haiku\) dflt='\-shared' ;;
        hpux\) dflt='\-b';
              case "$gccversion" in
              ''\) dflt="$dflt \+vnocompatwarnings" ;;
              esac
              ;;
        linux|irix\*|gnu\*\)  dflt="\-shared $optimize" ;;
        next\)  dflt='none' ;;
        solaris\) dflt='\-G' ;;
        sunos\) dflt='\-assert nodefinitions' ;;
        svr4\*|esix\*|nonstopux\) dflt="\-G $ldflags" ;;
        \*\)     dflt='none' ;;
        esac
        ;;
\*\) dflt="$lddlflags" ;;
esac

but because -A processing has already happened\, lddlflags is already set to something. This certainly isn't the intent of -A

./myconfig for the bust configuration​:

Summary of my perl5 (revision 5 version 19 subversion 1) configuration​:

Platform​: osname=linux\, osvers=2.6.32-5-amd64\, archname=x86_64-linux uname='linux gcc20 2.6.32-5-amd64 #1 smp mon jan 16 16​:22​:28 utc 2012 x86_64 gnulinux ' config_args='-des -Dusedevel -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32' hint=recommended\, useposix=true\, d_sigaction=define useithreads=undef\, usemultiplicity=undef useperlio=define\, d_sfio=undef\, uselargefiles=define\, usesocks=undef use64bitint=undef\, use64bitall=undef\, uselongdouble=undef usemymalloc=n\, bincompat5005=undef Compiler​: cc='cc'\, ccflags ='-m32 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'\, optimize='-O2'\, cppflags='-m32 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include' ccversion=''\, gccversion='4.4.5'\, gccosandvers='' intsize=4\, longsize=4\, ptrsize=4\, doublesize=8\, byteorder=1234 d_longlong=define\, longlongsize=8\, d_longdbl=define\, longdblsize=12 ivtype='long'\, ivsize=4\, nvtype='double'\, nvsize=8\, Off_t='off_t'\, lseeksize=8 alignbytes=4\, prototype=define Linker and Libraries​: ld='cc'\, ldflags =' -m32 -fstack-protector -L/usr/local/lib' libpth=/usr/local/lib /lib/../lib /usr/lib/../lib /lib /usr/lib /lib64 /usr/lib64 libs=-lnsl -ldl -lm -lcrypt -lutil -lc perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc libc=/lib/libc-2.11.3.so\, so=so\, useshrplib=false\, libperl=libperl.a gnulibc_version='2.11.3' Dynamic Linking​: dlsrc=dl_dlopen.xs\, dlext=so\, d_dlsymun=undef\, ccdlflags='-Wl\,-E' cccdlflags='-fPIC'\, lddlflags=' -m32 -L/usr/local/lib -fstack-protector'

If I run Configure like this\, adding -shared​:

./Configure -des -Dusedevel -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32\ -shared

the build is fine (and all tests pass)

Is this something common to all builds\, or gcc specific?

I mean gcc is obviously used as loader on these systems\, whereas on some the hints automatically switch to ld (see hpux and solaris in the above example). Sometimes it is a nasty cooperation with the hints.

That also re-raises the question​: do we care enough to add -Duse32bitall support? The default on most 64bit Linux distributions is to build 64bit

-- H.Merijn Brand http​://tux.nl Perl Monger http​://amsterdam.pm.org/ using perl5.00307 .. 5.17 porting perl5 on HP-UX\, AIX\, and openSUSE http​://mirrors.develooper.com/hpux/ http​://www.test-smoke.org/ http​://qa.perl.org http​://www.goldmark.org/jeff/stupid-disclaimers/

p5pRT commented 11 years ago

The RT System itself - Status changed from 'new' to 'open'

toddr commented 4 years ago

This ticket sounds like the same issue as #13676. In both cases, I would bet we can just fail if someone tries to compile 32bit perl on a 64 bit system. My suspicion is that nobody would complain.

khwilliamson commented 4 years ago

One of my standard testing configurations includes -Accflags=-m32 -Aldflags=-m32 -Alddlflags=-m32