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gdbstub: Add support for MTE in user mode

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This commit implements the stubs to handle the qIsAddressTagged,
qMemTag, and QMemTag GDB packets, allowing all GDB 'memory-tag'
subcommands to work with QEMU gdbstub on aarch64 user mode. It also
implements the get/set functions for the special GDB MTE register
'tag_ctl', used to control the MTE fault type at runtime.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Message-Id: <20240628050850.536447-11-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-40-alex.bennee@linaro.org>
This commit is contained in:
Gustavo Romero
2024-07-05 09:40:46 +01:00
committed by Alex Bennée
parent 3b6c27d8f2
commit f81198cefa
6 changed files with 288 additions and 1 deletions
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configs/targets/aarch64-linux-user.mak
+1 -1
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@@ -1,6 +1,6 @@
TARGET_ARCH=aarch64
TARGET_BASE_ARCH=arm
TARGET_XML_FILES= gdb-xml/aarch64-core.xml gdb-xml/aarch64-fpu.xml gdb-xml/aarch64-pauth.xml
TARGET_XML_FILES= gdb-xml/aarch64-core.xml gdb-xml/aarch64-fpu.xml gdb-xml/aarch64-pauth.xml gdb-xml/aarch64-mte.xml
TARGET_HAS_BFLT=y
CONFIG_SEMIHOSTING=y
CONFIG_ARM_COMPATIBLE_SEMIHOSTING=y