Author: cem Date: Sun Apr 12 18:04:20 2020 New Revision: 359829 URL: https://svnweb.freebsd.org/changeset/base/359829
Log: Add queue(2) debug macros as build options Add QUEUE_MACRO_DEBUG_TRACE and QUEUE_MACRO_DEBUG_TRASH as proper kernel options. While here, alpha-sort the debug section of sys/conf/options. Enable QUEUE_MACRO_DEBUG_TRASH in amd64 GENERIC (but not GENERIC-NODEBUG) kernels. It is similar in nature and cost to other use-after-free pointer trashing we do in GENERIC. It is probably reasonable to enable in any arch GENERIC kernel that defines INVARIANTS. Modified: head/sys/amd64/conf/GENERIC head/sys/amd64/conf/GENERIC-NODEBUG head/sys/conf/NOTES head/sys/conf/options Modified: head/sys/amd64/conf/GENERIC ============================================================================== --- head/sys/amd64/conf/GENERIC Sun Apr 12 16:13:05 2020 (r359828) +++ head/sys/amd64/conf/GENERIC Sun Apr 12 18:04:20 2020 (r359829) @@ -96,6 +96,7 @@ options GDB # Support remote GDB. options DEADLKRES # Enable the deadlock resolver options INVARIANTS # Enable calls of extra sanity checking options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS +options QUEUE_MACRO_DEBUG_TRASH # Trash queue(2) internal pointers on invalidation options WITNESS # Enable checks to detect deadlocks and cycles options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones Modified: head/sys/amd64/conf/GENERIC-NODEBUG ============================================================================== --- head/sys/amd64/conf/GENERIC-NODEBUG Sun Apr 12 16:13:05 2020 (r359828) +++ head/sys/amd64/conf/GENERIC-NODEBUG Sun Apr 12 18:04:20 2020 (r359829) @@ -40,3 +40,4 @@ nooptions FULL_BUF_TRACKING nooptions COVERAGE nooptions KCOV nooptions MALLOC_DEBUG_MAXZONES +nooptions QUEUE_MACRO_DEBUG_TRASH Modified: head/sys/conf/NOTES ============================================================================== --- head/sys/conf/NOTES Sun Apr 12 16:13:05 2020 (r359828) +++ head/sys/conf/NOTES Sun Apr 12 18:04:20 2020 (r359829) @@ -414,6 +414,18 @@ options DDB_NUMSYM options GDB # +# Trashes list pointers when they become invalid (i.e., the element is +# removed from a list). Relatively inexpensive to enable. +# +options QUEUE_MACRO_DEBUG_TRASH + +# +# Stores information about the last caller to modify the list object +# in the list object. Requires additional memory overhead. +# +options QUEUE_MACRO_DEBUG_TRACE + +# # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the # contents of the registered sysctl nodes on the console. It is disabled by # default because it generates excessively verbose console output that can Modified: head/sys/conf/options ============================================================================== --- head/sys/conf/options Sun Apr 12 16:13:05 2020 (r359828) +++ head/sys/conf/options Sun Apr 12 18:04:20 2020 (r359829) @@ -55,17 +55,19 @@ DDB_CAPTURE_DEFAULTBUFSIZE opt_ddb.h DDB_CAPTURE_MAXBUFSIZE opt_ddb.h DDB_CTF opt_ddb.h DDB_NUMSYM opt_ddb.h +EARLY_PRINTF opt_global.h FULL_BUF_TRACKING opt_global.h GDB KDB opt_global.h KDB_TRACE opt_kdb.h KDB_UNATTENDED opt_kdb.h KLD_DEBUG opt_kld.h +NUM_CORE_FILES opt_global.h +QUEUE_MACRO_DEBUG_TRACE opt_global.h +QUEUE_MACRO_DEBUG_TRASH opt_global.h SYSCTL_DEBUG opt_sysctl.h -EARLY_PRINTF opt_global.h TEXTDUMP_PREFERRED opt_ddb.h TEXTDUMP_VERBOSE opt_ddb.h -NUM_CORE_FILES opt_global.h TSLOG opt_global.h TSLOGSIZE opt_global.h _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
