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mte: use tag 0 for freed slots, stop reserving tag 15

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Dmitry Muhomor 2024-01-23 19:50:26 +02:00 • committed by Daniel Micay
parent 3c1f40aff0
commit 7268189933
4 changed files with 17 additions and 19 deletions
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3
memtag.h
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@ -6,7 +6,8 @@
#ifdef HAS_ARM_MTE
#include "arm_mte.h"
#define MEMTAG 1
#define RESERVED_TAG 15
// Note that bionic libc always reserves tag 0 via PR_MTE_TAG_MASK prctl
#define RESERVED_TAG 0
#define TAG_WIDTH 4
#endif