From: Alexander Popov <alex.popov@linux.com>
Date: Sat, 24 Sep 2022 21:51:25 +0000 (+0300)
Subject: Add the UBSAN_LOCAL_BOUNDS check for Clang build
X-Git-Tag: v0.6.1~91
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;ds=sidebyside;h=f958a9d7254b01ceb31e97e0c02ab098312214dc;hp=f958a9d7254b01ceb31e97e0c02ab098312214dc;p=kconfig-hardened-check.git

Add the UBSAN_LOCAL_BOUNDS check for Clang build

Explanations from the Linux kernel commit 6a6155f664e31c9be43cd:

When the kernel is compiled with Clang, -fsanitize=bounds expands to
-fsanitize=array-bounds and -fsanitize=local-bounds.

Enabling -fsanitize=local-bounds with Clang has the side-effect of
inserting traps.

That's why UBSAN_LOCAL_BOUNDS can enable the 'local-bounds' option
only when UBSAN_TRAP is enabled.
---