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authorLecopzer Chen <[email protected]>2021-03-24 12:05:22 +0800
committerCatalin Marinas <[email protected]>2021-03-29 12:35:05 +0100
commitacc3042d62cb92c3776767f09f665511c903ef2d (patch)
tree55f73870a1020fb2602f7da641f7a2a6a8585e08 /tools/perf/scripts/python/Perf-Trace-Util/lib
parent31d02e7ab00873befd2cfb6e44581490d947c38b (diff)
arm64: Kconfig: select KASAN_VMALLOC if KANSAN_GENERIC is enabled
Before this patch, someone who wants to use VMAP_STACK when KASAN_GENERIC enabled must explicitly select KASAN_VMALLOC. >From Will's suggestion [1]: > I would _really_ like to move to VMAP stack unconditionally, and > that would effectively force KASAN_VMALLOC to be set if KASAN is in use Because VMAP_STACK now depends on either HW_TAGS or KASAN_VMALLOC if KASAN enabled, in order to make VMAP_STACK selected unconditionally, we bind KANSAN_GENERIC and KASAN_VMALLOC together. Note that SW_TAGS supports neither VMAP_STACK nor KASAN_VMALLOC now, so this is the first step to make VMAP_STACK selected unconditionally. Bind KANSAN_GENERIC and KASAN_VMALLOC together is supposed to cost more memory at runtime, thus the alternative is using SW_TAGS KASAN instead. [1]: https://lore.kernel.org/lkml/20210204150100.GE20815@willie-the-truck/ Suggested-by: Will Deacon <[email protected]> Signed-off-by: Lecopzer Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
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