-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/12/11 20:39, Robert Harris wrote: > Can you mail me a working and a non-working copy of your python?
Do this: 1. Clone my mercurial repository: <"hg clone https://hg.jcea.es/cpython-2011/";>. 2. "hg up -r 2a7dedf6a65e". 3. Do "./configure --enable-shared --with-dtrace". 4. Do "make". 5. Do "LD_LIBRARY_PATH=current_PATH". 6. 'dtrace -l -n "python\$target:::" -c "./python -V"' works correctly. 7. Edit "Objects/unicodeobject.c". Go to line 49 and add the following two lines: """ unsigned int dtrace_unicode_utf8_offset = offsetof(PyCompactUnicodeObject, utf8); unsigned int dtrace_unicode_utf8_length_offset = offsetof(PyCompactUnicodeObject, utf8_length); """ 8. Do "make". 9. 'dtrace -l -n "python\$target:::" -c "./python -V"' fails. 10. Edit "Objects/unicodeobject.c" again and comment those two lines you just added. 11. Do "make". 12. 'dtrace -l -n "python\$target:::" -c "./python -V"' works. 13. Try to comment & uncomment those two lines and check several times. When the lines are present, dtrace fails to locate the probes. When the lines are commented, dtrace works. I know that this doesn't make sense at all... I am using GCC 4.6.2, with this conf: """ Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/i386-pc-solaris2.10/4.6.2/lto-wrapper Target: i386-pc-solaris2.10 Configured with: ../gcc-4.6.2/configure --with-gnu-as - --with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-shared - --enable-languages=c,c++,fortran,objc,obj-c++,go Thread model: posix gcc version 4.6.2 (GCC) """ The target is 32 bits. If you are not able to reproduce the problem for any reason (maybe a different GCC, no mercurial installed, whatever), I can send you the two precompiled versions. ZIP compressed each version is around 2.5 MB, so 5MB in total (mime encoded for email would be 6.7MB). Worse yet, if I merge the changes in python mainline to my branch, the newly compiled python has the probes (I can list the probes in a already running python process), but dtrace can't find them in 'dtrace - -c "./python -V"' either. Messy and I can't explain it neither, of course know how to solve it. PS: I need to add those to global variables because "PyCompactUnicodeObject" struct memory representation between GCC and DTRACE are different. This is a bug to address in a future message. I needed TWO days to diagnose this, but it is not the point now :-). - -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ j...@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:j...@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQCVAwUBTtrqoJlgi5GaxT1NAQIJegP+PtTxeDrUS/XPV4J9o/v0sd6yJ/QN2GOY Sffr7AC3mEvwKYfaC6bOmvqKp7Qu/d3FH3tAONOqZs7X8IgUZ9QW5NocTgAZF1uk UZDO2bb5solxtds8Ik92Lw/54gLyJgRsVeBaOIHifSF2yp/rKTa0pZEp7UtXw6J2 adJV6Eb1e3Y= =ZKOC -----END PGP SIGNATURE----- _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
