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ctypes -- segfault running example.py on a 64-bit system

From: Charles Duffy <charles_at_dyfis.net>
Date: 2007-12-02 21:01:17 CET

svn_cmdline_setup_auth_baton() is being called with an invalid parameter
in the cfg value. Since the lower 32 bits are null, I'm thinking it's
probably not a huge jump to guess that this is an issue with the ctypes
bindings not being 64-bit-clean.

Built against svn 1.4.4 (r25188); the ctypes code is at r27622.

Incidentally, I'm trying to use the ctypes bindings because last time I
checked, it wasn't possible to drive an editor over the diff between two
revisions through either the RA layer's SWIG-based Python bindings or pysvn.

===

(gdb) run example.py
Starting program: /usr/bin/python example.py
Repos UUID: 11ca8fda-3ff4-4ee1-9e0b-c010089aedf4
Committed revision 1
Committed revision 2
Committed revision 3

Program received signal SIGSEGV, Segmentation fault.
find_option (cfg=0x7fff00000000, section=0x2afabb28d158 "auth",
option=0x2afabb28d16b "store-passwords", sectionp=0x7ffff337bb50) at
subversion/libsvn_subr/config.c:366
366 svn_stringbuf_set(cfg->tmp_key, section);
(gdb) bt
#0 find_option (cfg=0x7fff00000000, section=0x2afabb28d158 "auth",
option=0x2afabb28d16b "store-passwords", sectionp=0x7ffff337bb50) at
subversion/libsvn_subr/config.c:366
#1 0x00002afabb275d19 in svn_config_get (cfg=0x7fff00000000,
valuep=0x7ffff337bb88, section=0x2afabb28d158 "auth",
option=0x2afabb28d16b "store-passwords", default_value=0x0) at
subversion/libsvn_subr/config.c:537
#2 0x00002afabb275f06 in svn_config_get_bool (cfg=0x7fff00000000,
valuep=0x7ffff337bbe4, section=0x2afabb28d16b "store-passwords",
option=0x7ffff337bb50 "Hâ–’", default_value=1) at
subversion/libsvn_subr/config.c:615
#3 0x00002afabb274960 in svn_cmdline_setup_auth_baton (ab=0xd32848,
non_interactive=1, auth_username=0x2afab7847134 "joecommitter",
auth_password=0x0, config_dir=0x0, no_auth_cache=1, cfg=0x7fff00000000,
cancel_func=0,
     cancel_baton=0x0, pool=0xaee508) at
subversion/libsvn_subr/cmdline.c:438
#4 0x00002afab8897e80 in ffi_call_unix64 () at
/usr/src/debug/dev-lang/python-2.5.1-r2/Python-2.5.1/Modules/_ctypes/libffi/src/x86/unix64.S:73

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Received on Sun Dec 2 21:02:17 2007

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