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Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The way the KGDB_DYN_BRK_INS_BYTEx macros are declared is more
complex than it needs to be. Also, the macros are only used in one
place, which is arch-specific anyway.
This patch refactors the macros to simplify them, and exposes an
argument so that we can have a single macro instead of 4.
As a side effect, this patch also fixes some anomalous spellings of
"KGDB".
These changes alter the compile types of some integer constants
that are harmless but trigger truncation warnings in gcc when
assigning to 32-bit variables. This patch adds an explicit cast
for the affected cases.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The naming of DBG_ESR_VAL_BRK is inconsistent with the way other
similar macros are named.
This patch makes the naming more consistent, and appends "64"
as a reminder that this ESR pattern only matches from AArch64
state.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Some of the KGDB macros used for generating the BRK instructions had the
wrong spelling for DBG and KGDB abbreviations.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Add KGDB software step debugging support for EL1 debug
in AArch64 mode.
KGDB registers step debug handler with debug monitor.
On receiving 'step' command from GDB tool, target enables
software step debugging and step address is updated in ELR.
Software Step debugging is disabled when 'continue' command
is received
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Add KGDB debug support for kernel debugging.
With this patch, basic KGDB debugging is possible.GDB register
layout is updated and GDB tool can establish connection with
target and can set/clear breakpoints.
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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