Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
"Rename and reallocate the PT_ARM_MEMTAG_MTE ELF segment type.
This is a fix to the MTE ELF ABI for a bug that was added during the
most recent merge window as part of the coredump support.
The issue is that the value assigned to the new PT_ARM_MEMTAG_MTE
segment type has already been allocated to PT_AARCH64_UNWIND by the
ELF ABI, so we've bumped the value and changed the name of the
identifier to be better aligned with the existing one"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
elf: Fix the arm64 MTE ELF segment name and value
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Documentation/arm64/memory-tagging-extension.rst
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Documentation/arm64/memory-tagging-extension.rst
···
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-----------------
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The allocation tags for user memory mapped with ``PROT_MTE`` are dumped
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in the core file as additional ``PT_ARM_MEMTAG_MTE`` segments. The
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in the core file as additional ``PT_AARCH64_MEMTAG_MTE`` segments. The
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program header for such segment is defined as:
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:``p_type``: ``PT_ARM_MEMTAG_MTE``
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:``p_type``: ``PT_AARCH64_MEMTAG_MTE``
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:``p_flags``: 0
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:``p_offset``: segment file offset
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:``p_vaddr``: segment virtual address, same as the corresponding
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arch/arm64/kernel/elfcore.c
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arch/arm64/kernel/elfcore.c