[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 Daniel Richard G. changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #11 from Daniel Richard G. --- I have attempted a bootstrap of 9.2.0 on this same system again, and am happy to report that it now completes successfully, modulo bug #55930. Specifically, * The libgcc-unwind.map error no longer occurs, despite my use of --disable-shared; * The object diffs no longer arise, even though I am continuing to use /usr/ccs/bin/as and /usr/ccs/bin/ld . These issues appear to have been fixed by-the-by since this bug was originally filed, so I am closing accordingly.
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 --- Comment #10 from Daniel Richard G. --- (In reply to r...@cebitec.uni-bielefeld.de from comment #9) > > it would be helpful to know a bit more about that system: Solaris 10 > update release (e.g. from /etc/release), versions of as (as -V) and ld > (ld -V), bootstrap compiler used, version of cmp (and do_compare setting > in the toplevel Makefile). Gladly: $ cat /etc/release Oracle Solaris 10 8/11 s10x_u10wos_17b X86 Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved. Assembled 23 August 2011 $ as -V as: SunOS 5.10 119961-13 Patch 08/06/2014 [...] $ ld -V ld: Software Generation Utilities - Solaris Link Editors: 5.10-1.1505 I am bootstrapping with an earlier build of GCC 7.3.0 (itself compiled via a non-bootstrapped build, due to this issue). cmp(1) has no version option; it is simply /usr/bin/cmp: $ cmp usage: cmp [-l] [-s] file1 file2 [skip1] [skip2] $ grep 'do-compare.*=' Makefile do-compare = cmp $$f1 $$f2 16 16 do-compare3 = $(do-compare) > To investigate comparison failures, it's usually necessary to have both > a few of the object pairs failing the comparison and the corresponding > .s files from -save-temps. You've to be very careful to rerun the exact > compiler invocations from exactly the same directories which can be > tricky due to all the shuffling around due to the different stages. Is it feasible to re-run the bootstrap with something like CFLAGS(_FOR_(BUILD|TARGET)) = "-save-temps" ? Recreating the compiler invocations manually will be quite tricky.
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 --- Comment #9 from ro at CeBiTec dot Uni-Bielefeld.DE --- > --- Comment #8 from Daniel Richard G. --- Hi Daniel, > I tested this again with GCC 8.2.0 on the same system, using as/ld, and am > still seeing the object diffs. Would it help if I provided a copy of the > objects at issue? it would be helpful to know a bit more about that system: Solaris 10 update release (e.g. from /etc/release), versions of as (as -V) and ld (ld -V), bootstrap compiler used, version of cmp (and do_compare setting in the toplevel Makefile). To investigate comparison failures, it's usually necessary to have both a few of the object pairs failing the comparison and the corresponding .s files from -save-temps. You've to be very careful to rerun the exact compiler invocations from exactly the same directories which can be tricky due to all the shuffling around due to the different stages. Rainer
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 --- Comment #8 from Daniel Richard G. --- Hello Rainer, (In reply to r...@cebitec.uni-bielefeld.de from comment #7) > That bootstrap (amd64-pc-solaris2.10 with as/ld, --disable-shared > --with-pic) has now completed as well: in addition to libcc1 (PR > other/66955) and ada (cf. PR ada/88429), I also had to disable go > because it uses sendfile without explicitly linking with -lsendfile (in > the shared case, this works because libgo is linked with libsendfile). > > Anyway, the bootstrap has now finished successfully and make check is > running: no comparison failures at all. So unless there's additional > information how to reproduce this, I'll close the PR as WORKSFORME. I tested this again with GCC 8.2.0 on the same system, using as/ld, and am still seeing the object diffs. Would it help if I provided a copy of the objects at issue?
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 --- Comment #7 from ro at CeBiTec dot Uni-Bielefeld.DE --- > --- Comment #6 from Rainer Orth --- [...] >> > 2. stage2 vs. stage3 diffs [...] > When trying a mainline bootstrap, I've run into quite a number of issues > (libcc1 and ada not building), but once I've worked around those, I could > bootstrap on amd64-pc-solaris2.11 (admittedly) with as/ld without comparison > failures. This was without --with-pic, which I'll try next. That bootstrap (amd64-pc-solaris2.10 with as/ld, --disable-shared --with-pic) has now completed as well: in addition to libcc1 (PR other/66955) and ada (cf. PR ada/88429), I also had to disable go because it uses sendfile without explicitly linking with -lsendfile (in the shared case, this works because libgo is linked with libsendfile). Anyway, the bootstrap has now finished successfully and make check is running: no comparison failures at all. So unless there's additional information how to reproduce this, I'll close the PR as WORKSFORME.
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725
Rainer Orth changed:
What|Removed |Added
Status|WAITING |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ro at gcc dot gnu.org
--- Comment #6 from Rainer Orth ---
(In reply to Fredrik Nyström from comment #3)
> (In reply to Daniel Richard G. from comment #0)
> > 1. Missing libgcc-unwind.map file
>
> 1. Is caused by LINK_LIBGCC_MAPFILE_SPEC being set in gcc/config/sol2.h even
> if configured with --disable-shared. This has been around since PR
> target/59788.
>
> I've had success on solaris 10, both sparc and x86 with following fix.
>
> --- gcc/config/sol2.h.orig 2014-05-28 13:37:50.0 +0200
> +++ gcc/config/sol2.h 2015-09-03 14:23:19.950566000 +0200
> @@ -174,7 +174,7 @@
> #define RDYNAMIC_SPEC "--export-dynamic"
> #endif
>
> -#ifndef USE_GLD
> +#if !defined(USE_GLD) && defined(ENABLE_SHARED_LIBGCC)
> /* With Sun ld, use mapfile to enforce direct binding to libgcc_s unwinder.
> */
> #define LINK_LIBGCC_MAPFILE_SPEC \
>"%{shared|shared-libgcc:-M %slibgcc-unwind.map}"
Thanks for the patch. It makes perfect send and I've now installed it on
mainline.
> > 2. stage2 vs. stage3 diffs
>
> Are you sure you want /usr/ccs/bin/as on solaris x86?
> Have you tried with gnu as?
> --with-gnu-as
> --with-as=/usr/sfw/bin/gas
There's something to be said for using gas, but the Solaris 10 gas is ancient
by today' standards. That said, I regularly bootstrap gcc on Solaris 10 with
both as and gas, and both work for me.
When trying a mainline bootstrap, I've run into quite a number of issues
(libcc1 and ada not building), but once I've worked around those, I could
bootstrap on amd64-pc-solaris2.11 (admittedly) with as/ld without comparison
failures. This was without --with-pic, which I'll try next.
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 --- Comment #5 from Rainer Orth --- Author: ro Date: Mon Dec 10 09:49:02 2018 New Revision: 266946 URL: https://gcc.gnu.org/viewcvs?rev=266946=gcc=rev Log: Don't try to use libgcc-unwind.map with --disable-shared (PR bootstrap/65725) 2018-12-10 Fredrik Nyström PR bootstrap/65725 * config/sol2.h: Only use libgcc-unwind.map if ENABLE_SHARED_LIBGCC. Modified: trunk/gcc/ChangeLog trunk/gcc/config/sol2.h
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725 --- Comment #4 from Eric Gallager --- (In reply to Richard Biener from comment #1) > Please always say how you configured GCC. Reporter has since done this; does this bug still need to stay in WAITING?
[Bug bootstrap/65725] Bootstrap errors on Solaris 10 x86-64, including object diffs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65725
Fredrik Nyström changed:
What|Removed |Added
CC||fredrik at lysator dot liu.se
--- Comment #3 from Fredrik Nyström ---
(In reply to Daniel Richard G. from comment #0)
> 1. Missing libgcc-unwind.map file
1. Is caused by LINK_LIBGCC_MAPFILE_SPEC being set in gcc/config/sol2.h even if
configured with --disable-shared. This has been around since PR target/59788.
I've had success on solaris 10, both sparc and x86 with following fix.
--- gcc/config/sol2.h.orig 2014-05-28 13:37:50.0 +0200
+++ gcc/config/sol2.h 2015-09-03 14:23:19.950566000 +0200
@@ -174,7 +174,7 @@
#define RDYNAMIC_SPEC "--export-dynamic"
#endif
-#ifndef USE_GLD
+#if !defined(USE_GLD) && defined(ENABLE_SHARED_LIBGCC)
/* With Sun ld, use mapfile to enforce direct binding to libgcc_s unwinder.
*/
#define LINK_LIBGCC_MAPFILE_SPEC \
"%{shared|shared-libgcc:-M %slibgcc-unwind.map}"
Also "--disable-shared --with-pic" is still broken (since 4.7.?), see PR
libstdc++/58638 for suggested patch.
> 2. stage2 vs. stage3 diffs
Are you sure you want /usr/ccs/bin/as on solaris x86?
Have you tried with gnu as?
--with-gnu-as
--with-as=/usr/sfw/bin/gas
