Red Hat Bugzilla – Bug 31462
pdksh segfaults when using libtool with long command line
Last modified: 2008-05-01 11:38:00 EDT
From Bugzilla Helper: User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.4.2 i686; Nav) Is segfaults (tries to free unallocated memory): (gdb) bt #0 0x0804a185 in ablockfree (bp=0x67206f6c, ap=0x807f188) at alloc.c:471 #1 0x0804a04c in afree (ptr=0x812a6f8, ap=0x807f188) at alloc.c:419 #2 0x080706d2 in setstr (vq=0x8124c28, s=0x8129398 "elector.lo gnome-procbar.lo gnome-window.lo gnome-window-icon.lo gnometypes.lo gtkcauldron.lo gtk-clock.lo gtk-ted.lo gtkdial.lo gtkpixmapmenuitem.lo -L/usr/lib -lesd -laudiofile+-lm -L/usr/lib -laudi"..., error_ok=1) at var.c:372 #3 0x08071316 in typeset ( var=0x8129388 "lib_search_path=elector.lo gnome-procbar.lo gnome-window.lo gnome-window-icon.lo +gnometypes.lo gtkcauldron.lo gtk-clock.lo gtk-ted.lo gtkdial.lo gtkpixmapmenuitem.lo -L/usr/lib +-lesd -laudiofile -lm -"..., set=0, clr=0, field=0, base=0) at var.c:726 #4 0x0805990d in comexec (t=0x80a52b0, tp=0x0, ap=0x80a51a8, flags=0) at exec.c:575 ... Reproducible: Always Steps to Reproduce: Tested on libtool 1.3.5, pdksh 5.2.14: 1. cp /usr/bin/libtool ~/ 2. vi ~/libtool and change s#!/bin/ksh 3. run libtool throught this (gdb) simple script (not directly): mkdir -p /tmp/testXYZ && cd /tmp/testXYZ ~/libtool --mode=link gcc -O2 -march=i686 -Wall -Wunused -s -o libgnomeui.la -rpath /usr/X11R6/lib -version-info 46:1:14 -rpath /usr/X11R6/lib gnome-about.lo gnome-animator.lo gnome-app.lo gnome-appbar.lo gnome-app-helper.lo gnome-app-util.lo gnome-calculator.lo gnome-canvas.lo gnome-canvas-image.lo gnome-canvas-load.lo gnome-canvas-line.lo gnome-canvas-rect-ellipse.lo gnome-canvas-polygon.lo gnome-canvas-text.lo gnome-canvas-util.lo gnome-canvas-widget.lo gnome-client.lo gnome-color-picker.lo gnome-dateedit.lo gnome-dentry-edit.lo gnome-dialog.lo gnome-dialog-util.lo gnome-dns.lo gnome-dock.lo gnome-dock-band.lo gnome-dock-item.lo gnome-dock-layout.lo gnome-druid.lo gnome-druid-page.lo gnome-druid-page-start.lo gnome-druid-page-standard.lo gnome-druid-page-finish.lo gnome-geometry.lo gnome-guru.lo gnome-entry.lo gnome-file-entry.lo gnome-font-picker.lo gnome-font-selector.lo gnome-href.lo gnome-ice.lo gnome-icon-list.lo gnome-icon-item.lo gnome-icon-sel.lo gnome-icon-text.lo gnome-icon-entry.lo gnome-init.lo gnome-less.lo gnome-mdi.lo gnome-mdi-child.lo gnome-mdi-generic-child.lo gnome-mdi-session.lo gnome-messagebox.lo gnome-number-entry.lo gnome-pixmap.lo gnome-pixmap-entry.lo gnome-popup-menu.lo gnome-popup-help.lo gnome-preferences.lo gnome-propertybox.lo gnome-properties.lo gnome-property-entries.lo gnome-scores.lo gnome-spell.lo gnome-startup.lo gnome-stock.lo gnome-winhints.lo gnome-paper-selector.lo gnome-procbar.lo gnome-window.lo gnome-window-icon.lo gnometypes.logtkcauldron.lo gtk-clock.lo gtk-ted.lo gtkdial.lo gtkpixmapmenuitem.lo -L/usr/lib -lesd -laudiofile -lm -L/usr/lib -laudiofile -lm -ldb3 -L/usr/lib -lglib -ldl -L/usr/X11R6/lib -lgdk_imlib -L/usr/X11R6/lib -L/usr/X11R6/lib -lgtk -lgdk -L/usr/lib -rdynamic -lgmodule -lglib -ldl -lXi -lXext -lX11 -lm -lSM -lICE -L/usr/X11R6/lib -L/usr/X11R6/lib -lgtk -lgdk -L/usr/lib -rdynamic -lgmodule -lglib -ldl -lXi -lXext -lX11 -lm -lz -lm Actual Results: segfault Expected Results: not segfault ;-)
Can you try getting the new kernel, pdksh and glibc from wolverine (or even better: Rawhide) and try it again? Also, how do you run that through gdb? I tried runninng the looong command line in pdksh (after switching to ksh in ~/libtool), and couldn't reproduce your crash: gcc: gtkdial.lo: No such file or directory gcc: gtkpixmapmenuitem.lo: No such file or directory $
Please ignore this bug report. I also have gcc 2.95.3-test4 (not from RH) and it seems that it miscompiles pdksh. pdksh compiled using officiall compilator from RH (I also tested this with gcc 20010305 snapshot) works fine.