emacs aborting on exit with recent lib/libc/stdlib/atexit.c changes

[Fabian Keil]

The recent lib/libc/stdlib/atexit.c changes broke emacs (23.2_2,2) for me.
It aborts on exit (C-x C-c) after receiving SIGBUS:

fk at r500 ~ $gdb emacs
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This GDB was configured as "amd64-marcel-freebsd"...
(gdb) run
Starting program: /usr/local/bin/emacs 
[New LWP 100281]
[New Thread 1260600 (LWP 100281)]

Program received signal SIGBUS, Bus error.
[Switching to Thread 1260600 (LWP 100281)]
0x00000008045c432d in __elf_phdr_match_addr () from /lib/libc.so.7
(gdb) where
#0  0x00000008045c432d in __elf_phdr_match_addr () from /lib/libc.so.7
#1  0x0000000803038abb in __pthread_cxa_finalize () from /lib/libthr.so.3
#2  0x00000008045bdfa7 in __cxa_finalize () from /lib/libc.so.7
#3  0x00000008045682c7 in exit () from /lib/libc.so.7
#4  0x0000000000556817 in Fkill_emacs (arg=Could not find the frame base for "Fkill_emacs".
) at emacs.c:2146
#5  0x0000000000600ec0 in Ffuncall (nargs=1, args=0x7fffffffc880) at eval.c:3024
#6  0x0000000000658d47 in Fbyte_code (bytestr=8602321, vector=8602357, maxdepth=20) at bytecode.c:680
#7  0x00000000006017e6 in funcall_lambda (fun=8602229, nargs=0, arg_vector=0x7fffffffcdc8) at eval.c:3211
#8  0x00000000006011e0 in Ffuncall (nargs=1, args=0x7fffffffcdc0) at eval.c:3070
#9  0x0000000000658d47 in Fbyte_code (bytestr=9558105, vector=9558141, maxdepth=20) at bytecode.c:680
#10 0x00000000006017e6 in funcall_lambda (fun=9558029, nargs=1, arg_vector=0x7fffffffd358) at eval.c:3211
#11 0x00000000006011e0 in Ffuncall (nargs=2, args=0x7fffffffd350) at eval.c:3070
#12 0x00000000005fb954 in Fcall_interactively (function=11961778, record_flag=11544578, keys=20138021) at callint.c:869
#13 0x0000000000600f36 in Ffuncall (nargs=4, args=0x7fffffffd760) at eval.c:3030
#14 0x00000000006008fd in call3 (fn=11756290, arg1=11961778, arg2=11544578, arg3=20138021) at eval.c:2850
#15 0x000000000056b7ac in Fcommand_execute (cmd=11961778, record_flag=11544578, keys=20138021, special=11544674) at keyboard.c:10507
#16 0x000000000055cc69 in read_char (commandflag=1, nmaps=2, maps=0x7fffffffdb70, prev_event=11544578, used_mouse_menu=0x7fffffffded4, end_time=0x0)
    at keyboard.c:3166
#17 0x000000000056880e in read_key_sequence (keybuf=0x7fffffffe280, bufsize=30, prompt=11544578, dont_downcase_last=0, can_return_switch_frame=1, 
    fix_current_buffer=1) at keyboard.c:9512
#18 0x0000000000558a33 in command_loop_1 () at keyboard.c:1643
#19 0x00000000005fe0aa in internal_condition_case (bfun=0x5586a0 <command_loop_1>, handlers=11629954, hfun=0x557f90 <cmd_error>) at eval.c:1490
#20 0x000000000055836a in command_loop_2 () at keyboard.c:1360
#21 0x00000000005fda2c in internal_catch (tag=11621170, func=0x558350 <command_loop_2>, arg=11544578) at eval.c:1226
#22 0x0000000000558320 in command_loop () at keyboard.c:1339
#23 0x0000000000557a85 in recursive_edit_1 () at keyboard.c:954
#24 0x0000000000557c45 in Frecursive_edit () at keyboard.c:1016
#25 0x00000000005560b8 in main (argc=1, argv=0x7fffffffe840) at emacs.c:1833

Reverting to lib/libc/stdlib/atexit.c 1.9 gets it working again,
using 1.11 brings back the crashes. I didn't csup between those
versions and thus don't have 1.10 in git, but given that it's a
style change it shouldn't matter.

I'm using amd64 and so far I only noticed the problem with emacs.

Is anyone else seeing this?

Fabian
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