Re: announce: MELT plugin 0.8rc2 for 4.6

[Allan McRae <allan at archlinux dot org>]

On 08/07/11 19:15, Basile Starynkevitch wrote:
> On Fri, Jul 08, 2011 at 06:41:30PM +1000, Allan McRae wrote:
> > empty-file-for-melt.c
> > cc1: note: MELT is bootstrapping so ignore builtin source directory
> > /usr/lib/gcc/i686-pc-linux-gnu/4.6.1/plugin/melt-source and module
> > directory
> > /usr/lib/gcc/i686-pc-linux-gnu/4.6.1/plugin/libexec/melt-modules
> > *** WARNING *** there are active plugins, do not report this as a
> > bug unless you can reproduce it without enabling any plugins.
> > Event                            | Plugins
> > PLUGIN_FINISH_UNIT               | melt
> > PLUGIN_FINISH                    | melt
> > PLUGIN_GGC_START                 | melt
> > PLUGIN_GGC_MARKING               | melt
> > PLUGIN_ATTRIBUTES                | melt
> > PLUGIN_START_UNIT                | melt
> > PLUGIN_PRAGMAS                   | melt
> > cc1: internal compiler error: Segmentation fault
> > Please submit a full bug report,
>
>
> Did you install a previous release of MELT plugin (e.g. 0.8rc1 or 0.7)? If
> you did, you have to remove it entirely (eg remove all files named *melt*)?

I have no previous MELT plugins installed.


> > What further information do you require for this?
>
> Perhaps a gdb backtrace of the crash?

Maybe not that helpful given things have been stripped...  I can rebuild 
without stripping if helpful.

#0  0xf7fe6941 in _dl_lookup_symbol_x () from /lib/ld-linux.so.2
#1  0xf788ed60 in ?? () from /lib/libc.so.6
#2  0xf788f1e7 in _dl_sym () from /lib/libc.so.6
#3  0xf7902d66 in ?? () from /lib/libdl.so.2
#4  0xf7feb66f in _dl_catch_error () from /lib/ld-linux.so.2
#5  0xf790333a in ?? () from /lib/libdl.so.2
#6  0xf7902de4 in dlsym () from /lib/libdl.so.2
#7  0xf71a7605 in melt_dlsym_all () from ./melt.so
#8  0xf71a7666 in melt_dynobjstruct_fieldoffset_at () from ./melt.so
#9  0xf708ad3c in warmelt_first_initialmeltchunk_19 ()
   from melt-stage0-dynamic/warmelt-first-0.so
#10 0xf70fa485 in start_module_melt ()
   from melt-stage0-dynamic/warmelt-first-0.so
#11 0xf71b9b3b in meltgc_make_load_melt_module () from ./melt.so
#12 0xf71c3bc3 in plugin_init () from ./melt.so
#13 0x082d5565 in ?? ()
#14 0x087663c5 in htab_traverse_noresize ()
#15 0x082d5ebd in initialize_plugins ()
#16 0x08364c2e in toplev_main ()
#17 0x080d645b in main ()


Note that this only happens for me on i686.  I have just set off a build 
on my x86_64 system (toolchain build with exactly the same 
configuration) and I do not run into this issue.

Allan