Hi,
I've bumped into a rather nasty problem with libtool's "cooperation"
with the native SGI IRIX linker.
Platform:
* SGI IRIX 6.5
* SGI Mipspro CC v7.30
* native ld, $Id$ = IRIX 6.4:1275524910 built 04/21/99
(couldn't find a way to make it spit out the version or
release number)
* Libtool v1.3.5
In a nutshell, the problem is that the -set_version option of the
native IRIX linker can't handle optionstrings of more than ~230
characters before it segfaults.
The long version of the problem is that libtool uses IRIX ld's
-set_version to set up the list of interface versions which the
library you're building is meant to be backwards compatible
with. Here's the relevant code from ltmain.sh:
irix)
major=`expr $current - $age + 1`
versuffix="$major.$revision"
verstring="sgi$major.$revision"
# Add in all the interfaces that we are compatible with.
loop=$revision
while test $loop != 0; do
iface=`expr $revision - $loop`
loop=`expr $loop - 1`
verstring="sgi$major.$iface:$verstring"
done
;;
(So if our current major version number is 1 (and age 0), and our
revision is 5, the library will be named libxxx.so.2.5 and the
interface compatibility $verstring will become
"sgi2.4:sgi2.3:sgi2.2:sgi2.1:sgi2.0:sgi2.5".)
The $verstring is then passed to ld's -set_version option in the
generated libtool script, here's the command:
archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname `test -n
"$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations
-o $lib'
Now, if the $revision number is large, $verstring can quickly get
rather long. IRIX ld will crash if it consists of more than ~230
characters, and each extra interface to be listed consists of minimum
7 characters (in the form "sgi1.0:sgi1.1:...").
I.e., you can't have more than about 25 revisions of a library, and
that is only if you increment the revision number by 1 each time you
do a new release. This is obviously not good enough.
That's the problem, now for my proposed solution:
The thing is that I can't see why we need to pass -set_version at all,
as the default behavior for IRIX ld is to keep compatibility only over
major version numbers -- i.e. the minor number defaults to being
ignored by the runtime linker if the library was created without the
-set_version option.
So unless I've overlooked something crucial, I propose the attached
patch as a workaround for the IRIX ld problem. Changelog entry as
follows (I'm not sure in which format you want patches against release
tarballs, I guess you'd perhaps want to ignore the changes to the
autogenerated files):
2000-10-26 Morten Eriksen <[EMAIL PROTECTED]>
* ltconfig.in (irix*): Remove unnecessary use of the buggy
-set_version option to IRIX ld (the linker segfaults for
strings longer than ~230 characters).
* ltconfig (irix*): Likewise.
* ltmain.in (irix*): No need to build the $verstring variable
anymore.
* ltmain.sh (irix*): Likewise.
BTW, AFAICS the CVS HEAD-branch also has the same problem.
(I Cc:'ed the discussion mailinglist as I'm not 100% sure this is the
correct solution.)
Regards,
Morten Eriksen
diff -u libtool-1.3.5-org/ltconfig libtool-1.3.5/ltconfig
--- libtool-1.3.5-org/ltconfig Sat May 27 13:15:00 2000
+++ libtool-1.3.5/ltconfig Thu Oct 26 15:25:54 2000
@@ -1382,9 +1382,9 @@
irix5* | irix6*)
if test "$with_gcc" = yes; then
- archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname
`test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry
${wl}${objdir}/so_locations -o $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname
+${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
else
- archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname `test -n
"$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations
-o $lib'
+ archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname
+-update_registry ${objdir}/so_locations -o $lib'
fi
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
diff -u libtool-1.3.5-org/ltconfig.in libtool-1.3.5/ltconfig.in
--- libtool-1.3.5-org/ltconfig.in Sat May 27 03:58:57 2000
+++ libtool-1.3.5/ltconfig.in Thu Oct 26 14:17:47 2000
@@ -1382,9 +1382,9 @@
irix5* | irix6*)
if test "$with_gcc" = yes; then
- archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname
`test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry
${wl}${objdir}/so_locations -o $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname
+${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
else
- archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname `test -n
"$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations
-o $lib'
+ archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname
+-update_registry ${objdir}/so_locations -o $lib'
fi
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
diff -u libtool-1.3.5-org/ltmain.in libtool-1.3.5/ltmain.in
--- libtool-1.3.5-org/ltmain.in Sat May 27 03:53:15 2000
+++ libtool-1.3.5/ltmain.in Thu Oct 26 15:31:34 2000
@@ -1698,15 +1698,6 @@
irix)
major=`expr $current - $age + 1`
versuffix="$major.$revision"
- verstring="sgi$major.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test $loop != 0; do
- iface=`expr $revision - $loop`
- loop=`expr $loop - 1`
- verstring="sgi$major.$iface:$verstring"
- done
;;
linux)
diff -u libtool-1.3.5-org/ltmain.sh libtool-1.3.5/ltmain.sh
--- libtool-1.3.5-org/ltmain.sh Sat May 27 13:15:01 2000
+++ libtool-1.3.5/ltmain.sh Thu Oct 26 15:45:13 2000
@@ -1698,15 +1698,6 @@
irix)
major=`expr $current - $age + 1`
versuffix="$major.$revision"
- verstring="sgi$major.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test $loop != 0; do
- iface=`expr $revision - $loop`
- loop=`expr $loop - 1`
- verstring="sgi$major.$iface:$verstring"
- done
;;
linux)
