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target/arm: Factor out code for setting MTE TCF0 field

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Factor out the code used for setting the MTE TCF0 field from the prctl
code into a convenient function. Other subsystems, like gdbstub, need to
set this field as well, so keep it as a separate function to avoid
duplication and ensure consistency in how this field is set across the
board.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Message-Id: <20240628050850.536447-7-gustavo.romero@linaro.org>
[AJB: clean-up includes, move MTE defines]
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-36-alex.bennee@linaro.org>
This commit is contained in:
Gustavo Romero 2024-07-05 09:40:42 +01:00 • committed by Alex Bennée
parent 0c9b437c90
commit bef6a77f6d
5 changed files with 71 additions and 29 deletions
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9
linux-user/syscall.c
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@ -6281,15 +6281,6 @@ abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
# define PR_GET_TAGGED_ADDR_CTRL 56
# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
#endif
#ifndef PR_MTE_TCF_SHIFT
# define PR_MTE_TCF_SHIFT 1
# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TAG_SHIFT 3
# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
#endif
#ifndef PR_SET_IO_FLUSHER
# define PR_SET_IO_FLUSHER 57
# define PR_GET_IO_FLUSHER 58