Hi all,
Today's -current userland with yesterday's kernel seem to build and
run fine on macppc, but Xorg segfaults when it tries to dynamically
load a library:
-----------------------------------------
# gdb X
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This GDB was configured as "powerpc--netbsd"...(no debugging symbols found)
(gdb) run
Starting program: /usr/pkg/bin/X
X Window System Version 1.3.0
Release Date: 19 April 2007
X Protocol Version 11, Revision 0, Release 1.3
Build Operating System: UNKNOWN
Current Operating System: NetBSD byers.homeunix.org 4.99.64 NetBSD 4.99.64
(GENERIC) #0: Fri Jun 13 17:59:17 CEST 2008
sjamaan%byers.homeunix.org@localhost:/usr/obj/sys/arch/macppc/compile/GENERIC
macppc
Build Date: 14 June 2008
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Jun 14 22:22:09 2008
(==) Using config file: "/etc/X11/xorg.conf"
Program received signal SIGSEGV, Segmentation fault.
dlsym (handle=0xfffffffe, name=0xefb09e40 "pcidataModuleData")
at /usr/src/libexec/ld.elf_so/rtld.c:825
825 retaddr = __builtin_return_address(0); /* __GNUC__ only
*/
(gdb) bt
#0 dlsym (handle=0xfffffffe, name=0xefb09e40 "pcidataModuleData")
at /usr/src/libexec/ld.elf_so/rtld.c:825
#1 0x01862d94 in DLFindSymbol ()
#2 0x0186016c in LoaderSymbol ()
#3 0x018620fc in LoaderListDirs ()
#4 0x018627fc in LoadModule ()
#5 0x0185cb94 in xf86LoadModules ()
#6 0x0185ec4c in InitOutput ()
#7 0x01823ec8 in main ()
(gdb) l
820 switch ((intptr_t)handle) {
821 case (intptr_t)NULL:
822 case (intptr_t)RTLD_NEXT:
823 case (intptr_t)RTLD_DEFAULT:
824 case (intptr_t)RTLD_SELF:
825 retaddr = __builtin_return_address(0); /* __GNUC__ only
*/
826 if ((obj = _rtld_obj_from_addr(retaddr)) == NULL) {
827 _rtld_error("Cannot determine caller's shared
object");
828 return NULL;
829 }
(gdb)
--------------------------------------------------------
Simple (probably naive) test programs that simply call
__builtin_return_address(0) or call dlopen followed by dlsym
do not crash.
Anyone have any idea what could be wrong here?
Cheers,
Peter
--
http://sjamaan.ath.cx
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