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Cannot Use Procfs In The Large File Compilation Environment

Until then, by default, including will > * provide the older ioctl-based /proc definitions. UIO_READ : UIO_WRITE; diff --git a/usr/src/uts/common/fs/proc/prdata.h b/usr/src/uts/common/fs/proc/pr index 1294421..ce92577 100644 --- a/usr/src/uts/common/fs/proc/prdata.h +++ b/usr/src/uts/common/fs/proc/prdata.h @@ -23,6 +23,10 @@ * Use is subject to license terms. */ +/* + * Copyright (c) It is less convenient than usingthe normal largePost by David Powellfiles interfaces (you must explicitly uselarge-file interfaces, e.g.Post by David Powellopen64() instead of open()), but is compatiblewith things likePost by David I think this bug can be closed. - Tommi Höynälänmaa - Next Message by Date: Re: symtab/2005: info line seems to crash in gdb 6.3 The following reply was made to weblink

OK to apply? We need to build gnulib under some other directory not # "gnulib", to avoid the problem of both GDB and GDBserver wanting to # build it in the same directory, when I have added extra 64 bit builds in buildbot to take care of checking these issues. Tested by rebuilding on sparc-solaris and x86_64-linux (with gdbserver). https://sourceware.org/ml/gdb-patches/2014-12/msg00058.html

If not, couldn't this simple change be made?There should be no need for this - off_t itself can either be a32-bit or 64-bit value depending on the compilation mode, asyou can To use Google Groups Discussions, please enable JavaScript in your browser settings, and then refresh this page. . This patch fixes the issue by passing --disable-largefile to gnulib's configure when large-file support in GDB is disabled. collectd member octo commented Jun 11, 2015 Thanks for the explanation @dago, it makes sense now!

  1. it selects large file support unless told otherwise, which doesn't work and if large file support is disabled it passes -D_FILE_OFFSET_BITS= rather than -D_FILE_OFFSET_BITS=32 (or no definition of _FILE_OFFSET_BITS) Steve Comment
  2. collectd member octo commented Jun 11, 2015 FYI, it compiles now past the zone plugin but failes ultimately due to #978.
  3. All rights reserved. + */ + /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ @@ -337,6 +341,15 @@ propen(vnode_t **vpp, int flag, cred_t *cr,
  4. It doesn't seem to be working >How-To-Repeat: download gdb 6.3 stable export CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" go to the directory and type ./configure type make You should see the problem now. >Fix: >Release-Note:
  5. diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac index f59e65b..c9bb15d 100644 --- a/gdb/gdbserver/configure.ac +++ b/gdb/gdbserver/configure.ac @@ -69,12 +69,19 @@ esac AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes) AC_PROG_MAKE_SET +gnulib_extra_configure_args= +# If large-file support is disabled, make sure
  6. gdb (and only gdb AFAIK) uses procfs, and Solaris procfs doesn't support a largefile environment, no idea why? has #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 #error "Cannot use procfs in
  7. Rainer Comment 4 ro@CeBiTec.Uni-Bielefeld.DE 2011-11-21 16:50:54 UTC I forgot: while one could use ACX_LARGEFILE everywhere in GCC (and I tried that using --disable-largefile when configuring gcc works with a default-configured gld),
  8. The only hosts that have a 32 bit kernel only are Solaris 8 x86 and Solaris 9 x86.

So what happens right now is that the compiler builds 32bit binaries, the plugin detects that and disables the large file support. However, without -m64 the compiler generates 32 bit code which can also run on a 64 bit kernel. However, the more elegant solution would be to add the -m64 CFLAG. Fixes: #1077">zone plugin: Undefine _FILE_OFFSET_BITS when building on 32bit hosts. … Fixes: #1077 edb3002 collectd member octo commented Jun 11, 2015 Let's see how this commit works out …

Bug 50935 Summary: All slim LTO tests FAIL on 32-bit Solaris Product: gcc Reporter: Rainer Orth Component: ltoAssignee: Not yet assigned to anyone Status: NEW --- Severity: diff --git a/gdb/configure.ac b/gdb/configure.ac index cd4c183..79ebc99 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -51,11 +51,18 @@ esac AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes) AC_PROG_MAKE_SET +gnulib_extra_configure_args= +# If large-file support is disabled, make sure It's deprecated. https://groups.google.com/d/topic/comp.unix.solaris/0I3iFRJUmeQ This is done by first enhancing ACX_CONFIGURE_DIR to allow us to pass extra arguments to be passed to the configure command, and then by modifying GDB's configure to pass --disable-largefile if

Comment 6 ro@CeBiTec.Uni-Bielefeld.DE 2011-11-21 17:30:21 UTC > --- Comment #5 from Paolo Bonzini 2011-11-21 17:25:20 UTC --- > What's exactly the problem with gdb that requires This is sub-optimal for us, for example reading /proc entries for 64-bit processes doesn't work when collectd is 32-bit. Obviously it's not portable to >> Solaris. > > It looks like using Solaris procfs with LFS requires 64 bit binaries. > > /usr/include/sys/procfs.h on Solaris 10 contains: > > /* no configure: Solaris detected.

This applies to KDE4, where we are careful enough to avoid any off_ts in procfs structs. https://gcc.gnu.org/bugzilla/show_bug.cgi?format=multiple&id=50935 It doesn't seem to be working >How-To-Repeat: download gdb 6.3 stable export CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" go to the directory and type ./configure type make You should see the problem now. >Fix: >Release-Note: When large files is enabled the file access data structures are enhanced to use 64 bit again which is not possible when the /proc structures are 32 bit, hence the problem. dago commented Jun 11, 2015 It will work partly ok as 32 bit processes can not stat 64 bit processes, so this will most certainly return inaccurate results.

AC_DEFUN([ACX_CONFIGURE_DIR], [ in_src=$1 in_build=$2 + in_extra_args=$3 # Remove --cache-file, --srcdir, and --disable-option-checking arguments # so they do not pile up. @@ -105,6 +108,11 @@ AC_DEFUN([ACX_CONFIGURE_DIR], ac_sub_cache_file=$ac_top_build_prefix$cache_file ;; esac + if test have a peek at these guys we simply can't support those options on this platform. -- Daniel Jacobowitz CodeSourcery, LLC

vvv Home | News | Sitemap | FAQ | advertise | OSDir is an Inevitable website. This is on amd64: checking for kernel type (solaris2.10)... For those reasons, it's much more work to provide a working slim LTO environment (and that's not only true on Solaris, but also on Linux where I often test a recent

I'll dig into autoconf/automake later tonight and see if I can figure out what the issue is. From: Tommi Hoynalanmaa To: [email protected] Cc: Subject: Re: gdb/2002: GDB cannot continue debugging after error "Cannot find bounds of current function" Date: Mon, 05 Sep 2005 08:18:21 +0000 "exec-continue" and procfs has beenaround since before 64-bit. check over here My plan is to build both 32 and 64 bit binaries for the package and let the user run either version with SMF instances.

I'm undecided how to deal with this: the largefile disabling in largefile.m4 is only for the benefit of procfs (thus gdb), but bfd/ld cannot know if they are built in a Hamilton 2011-01-21 20:09:12 UTC James Carlson 2011-01-21 20:26:16 UTC Giovanni Tirloni 2011-01-20 12:52:54 UTC about - legalese Loading... We need to build gnulib under some other # directory not "gnulib", to avoid the problem of both GDB and # GDBserver wanting to build it in the same directory, when

Thoughts?

Using > gdb-6.1 works fine. So the kernel always runs 64 bit. Maybe the lto-plugin could perform some check with dlsym (for open64?)? So unless the user explicitly requested | # large-file support through the --enable-largefile switch, disable | # large-file support in favor of procfs support. | test "${target}" = "${host}" -a "x$plugins"

Please consider building a 64-bit binary. \o/ octo closed this Jun 11, 2015 dago commented Jun 11, 2015 Unfortunately the test does not properly detect when it builds on 64 bit. So todo what you want to do, there's no good way to use the morepainless large file compilation environment, and you end up doingwhat they other poster said and using the Alternatiely, one could simply document the problem in install.texi and be done with it. this content A side-effect of the gnulib readlink module addition is that it caused largefile support to be added as well, and in particular gnulib/import/m4/largefile.m4 introduced the following new #define in gnulib's config.in:

From: Daniel Jacobowitz To: [email protected] Cc: [email protected] Subject: Re: build/2006: "Cannot use procfs in large file compilation environment" Date: Tue, 6 Sep 2005 15:02:33 -0400 On Tue, Sep 06, 2005 procfs on Solaris *still* isn't largefile-clean, but you can hack around it by re-defining FILE_OFFSET_BITS before including those headers -- if, and only if, you know what you're doing. We can't use AC_CONFIG_SUBDIRS as that'd expect # to find the the source subdir to be configured directly under # gdbserver/. Sure, that's my plan once I'm done with the libgcc patches.

no configure: Solaris detected. We recommend upgrading to the latest Safari, Google Chrome, or Firefox. It is less convenient than using the normal largefiles interfaces (you must explicitly use large-file interfaces, e.g.open64() instead of open()), but is compatible with things likeprocfs.h.Dave David Bartley 2008-09-29 01:16:07 UTC

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