Hi, Is building mozilla code such as firefox and thunderbird under 32-bit linux a supported operation?
During compilation of C-C TB under 32-bit linux, I think I found a serious issue regarding the mismatch of the size of literal constant and the size of variables (or structured member) which renders some run-time check ineffective and thus run-time error conditions are not handled correctly. Usually, I have to ignore the signed/unsigned comparison, etc. during build since there are just too many, but this time the particular warning about the size mismatch against a member field/variable (|st_size|) of a structure passed to |fstat| caught my eye, and I noticed the possible seriousness of the issue if my understanding is correct. The system is Debian GNU/linux 32-bit: uname -a Linux debian-vbox-ci 3.2.0-4-686-pae #1 SMP Debian 3.2.68-1+deb7u1 i686 GNU/Linux I understand that for official distribution, mozilla compilation farm seems to use cross compiling from the 64-bit linux to produce 32-bit linux version of firefox and thunderbird. If so, then maybe for the official version, the build may happen to pick up the right size accidentally. Frankly I don't know what is going on, I suspect there is something incorrect in the headers regarding the behavior that ought to change according the target/host environment. Eveb if the official version happens to be correct (by mistake?), still I want the headers to be correctly written to avoid future issues. Also, the problem occurs in mozilla/ipc/chromium/src/third_party/libevent directory. Yes, I noticed "/third_party/" moniker, but the compilation warning and the resulting failure of correct runtime check looks serious enough to discuss the remedy in mozilla community in the first place. If a consensus patch emerges, we can send the patch upstream. TIA _______________________________________________ dev-builds mailing list [email protected] https://lists.mozilla.org/listinfo/dev-builds
