Basically there is the initialization part which looks for the environment variables, and all DEBUG calls are modified to show the entry point, this was lost over time just the arguments of the functions wasn't great for debugging, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

Index: src/libvirt.c =================================================================== RCS file: /data/cvs/libxen/src/libvirt.c,v retrieving revision 1.182 diff -u -r1.182 libvirt.c --- src/libvirt.c 4 Dec 2008 21:46:34 -0000 1.182 +++ src/libvirt.c 17 Dec 2008 14:25:57 -0000 @@ -257,8 +257,22 @@ #ifdef ENABLE_DEBUG debugEnv = getenv("LIBVIRT_DEBUG"); - if (debugEnv && *debugEnv && *debugEnv != '0') - debugFlag = 1; + if (debugEnv && *debugEnv && *debugEnv != '0') { + if (STREQ(debugEnv, "2") || STREQ(debugEnv, "info")) + virLogSetDefaultPriority(VIR_LOG_INFO); + else if (STREQ(debugEnv, "3") || STREQ(debugEnv, "warning")) + virLogSetDefaultPriority(VIR_LOG_WARN); + else if (STREQ(debugEnv, "4") || STREQ(debugEnv, "error")) + virLogSetDefaultPriority(VIR_LOG_ERROR); + else + virLogSetDefaultPriority(VIR_LOG_DEBUG); + } + debugEnv = getenv("LIBVIRT_LOG_FILTERS"); + if (debugEnv) + virLogParseFilters(debugEnv); + debugEnv = getenv("LIBVIRT_LOG_OUTPUTS"); + if (debugEnv) + virLogParseOutputs(debugEnv); #endif DEBUG0("register drivers"); @@ -734,7 +748,7 @@ virGetVersion(unsigned long *libVer, const char *type, unsigned long *typeVer) { - DEBUG("libVir=%p, type=%s, typeVer=%p", libVer, type, typeVer); + DEBUG("%s libVir=%p, type=%s, typeVer=%p", __FUNCTION__, libVer, type, typeVer);