diff options
Diffstat (limited to 'libc/platform/bionic/mte.h')
| -rw-r--r-- | libc/platform/bionic/mte.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libc/platform/bionic/mte.h b/libc/platform/bionic/mte.h index b11b1a678..73cd821b6 100644 --- a/libc/platform/bionic/mte.h +++ b/libc/platform/bionic/mte.h @@ -29,6 +29,13 @@ #pragma once #include <sys/auxv.h> +#include <sys/prctl.h> + +// Note: Most PR_MTE_* constants come from the upstream kernel. This tag mask +// allows for the hardware to provision any nonzero tag. Zero tags are reserved +// for scudo to use for the chunk headers in order to prevent linear heap +// overflow/underflow. +#define PR_MTE_TAG_SET_NONZERO (0xfffeUL << PR_MTE_TAG_SHIFT) inline bool mte_supported() { #if defined(__aarch64__) |