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sys/prctl.h: add MTE related constants from linux v5.10 

these are for the aarch64 MTE (memory tagging extension), see

  linux commit 1c101da8b971a36695319dce7a24711dc567a0dd
  arm64: mte: Allow user control of the tag check mode via prctl()

  linux commit af5ce95282dc99d08a27a407a02c763dde1c5558
  arm64: mte: Allow user control of the generated random tags via prctl()
This commit is contained in:
Szabolcs Nagy 2020-12-19 21:10:26 +00:00 committed by Rich Felker
parent 8b29f02370
commit 19239cde94
1 changed files with 7 additions and 0 deletions
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7
include/sys/prctl.h
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@ -157,6 +157,13 @@ struct prctl_mm_map {
#define PR_SET_TAGGED_ADDR_CTRL 55
#define PR_GET_TAGGED_ADDR_CTRL 56
#define PR_TAGGED_ADDR_ENABLE (1UL << 0)
#define PR_MTE_TCF_SHIFT 1
#define PR_MTE_TCF_NONE (0UL << 1)
#define PR_MTE_TCF_SYNC (1UL << 1)
#define PR_MTE_TCF_ASYNC (2UL << 1)
#define PR_MTE_TCF_MASK (3UL << 1)
#define PR_MTE_TAG_SHIFT 3
#define PR_MTE_TAG_MASK (0xffffUL << 3)
#define PR_SET_IO_FLUSHER 57
#define PR_GET_IO_FLUSHER 58