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arch: arm64: add GDB stub support #117408

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arch: arm64: add GDB stub support #117408

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1 change: 1 addition & 0 deletions arch/arm64/core/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,7 @@ zephyr_library_sources_ifdef(CONFIG_AARCH64_IMAGE_HEADER header.S)
zephyr_library_sources_ifdef(CONFIG_SEMIHOST semihost.c)
zephyr_library_sources_ifdef(CONFIG_DEBUG_COREDUMP_FATAL_UNLOCK_IRQS coredump_fatal_irq.c)
zephyr_library_sources_ifdef(CONFIG_DEBUG_COREDUMP coredump.c)
zephyr_library_sources_ifdef(CONFIG_GDBSTUB gdbstub.c)
if((CONFIG_MP_MAX_NUM_CPUS GREATER 1) OR (CONFIG_SMP))
zephyr_library_sources(smp.c)
endif()
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6 changes: 6 additions & 0 deletions arch/arm64/core/Kconfig
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Expand Up @@ -19,11 +19,17 @@ config CPU_CORTEX_A
# callee_saved.sp_elx, so THREAD_STACK_TOP cannot rely on the saved SP.
# Dump the full stack allocation instead (matches RISC-V and Xtensa).
select ARCH_SUPPORTS_COREDUMP_STACK_PTR if !SMP
select ARCH_HAS_GDBSTUB
imply FPU
imply FPU_SHARING
help
This option signifies the use of a CPU of the Cortex-A family.

config GDBSTUB_BUF_SZ
# GDB aarch64 g-packet: x0-x30/sp/pc/cpsr + v0-v31/fpsr/fpcr
# (788 bytes binary -> 1576 hex chars). Leave headroom for framing.
default 2048 if GDBSTUB

config CPU_AARCH64_CORTEX_R
bool
select CPU_CORTEX
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