d7854da193
zones for each malloc bucket size. The purpose is to isolate different malloc types into hash classes, so that any buffer overruns or use-after-free will usually only affect memory from malloc types in that hash class. This is purely a debugging tool; by varying the hash function and tracking which hash class was corrupted, the intersection of the hash classes from each instance will point to a single malloc type that is being misused. At this point inspection or memguard(9) can be used to catch the offending code. Add MALLOC_DEBUG_MAXZONES=8 to -current GENERIC configuration files. The suggestion to have this on by default came from Kostik Belousov on -arch. This code is based on work by Ron Steinke at Isilon Systems. Reviewed by: -arch (mostly silence) Reviewed by: zml Approved by: zml (mentor) |
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.. | ||
defines | ||
files | ||
files.amd64 | ||
files.arm | ||
files.i386 | ||
files.ia64 | ||
files.mips | ||
files.pc98 | ||
files.powerpc | ||
files.sparc64 | ||
files.sun4v | ||
kern.mk | ||
kern.post.mk | ||
kern.pre.mk | ||
kmod_syms.awk | ||
kmod.mk | ||
ldscript.amd64 | ||
ldscript.arm | ||
ldscript.i386 | ||
ldscript.ia64 | ||
ldscript.mips | ||
ldscript.mips.64 | ||
ldscript.mips.cfe | ||
ldscript.mips.mips64 | ||
ldscript.mips.n32 | ||
ldscript.mips.octeon1.32 | ||
ldscript.mips.octeon1.64 | ||
ldscript.mips.octeon1.n32 | ||
ldscript.powerpc | ||
ldscript.powerpc64 | ||
ldscript.sparc64 | ||
Makefile.amd64 | ||
Makefile.arm | ||
Makefile.i386 | ||
Makefile.ia64 | ||
Makefile.mips | ||
Makefile.pc98 | ||
Makefile.powerpc | ||
Makefile.sparc64 | ||
Makefile.sun4v | ||
makeLINT.mk | ||
makeLINT.sed | ||
newvers.sh | ||
NOTES | ||
options | ||
options.amd64 | ||
options.arm | ||
options.i386 | ||
options.ia64 | ||
options.mips | ||
options.pc98 | ||
options.powerpc | ||
options.sparc64 | ||
options.sun4v | ||
systags.sh |