lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 09 Jun 2010 09:17:47 +0200 From: Andi Kleen <andi@...stfloor.org> To: David VomLehn <dvomlehn@...co.com> Cc: netdev@...r.kernel.org Subject: Re: [PATCH][RFC] Infrastructure for compact call location representation David VomLehn <dvomlehn@...co.com> writes: First your mailer generates broken cc addresses like "netdev@...r.kernel.org"@cisco.com > This patch allows the location of a call to be recorded as a small integer, > with each call location ("callsite") assigned a new value the first time > the code in that location is executed. Locations can be recorded as a > an address or as a __FILE__/__LINE__ pair. The later is easier to read, but > requires significantly more space. Seems overly complicated. How about using a hash of __FILE__, __LINE__ instead? With some care you can write it in a way that it gets completely evaluated by gcc at compile time, so it's just a constant then. That may use a few more bits then, but that's far better than having so much runtime overhead for this. -Andi -- ak@...ux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists