Functions
void	arch_coredump_info_dump (const struct arch_esf *esf)
	Architecture-specific handling during coredump.
uint16_t	arch_coredump_tgt_code_get (void)
	Get the target code specified by the architecture.
uintptr_t	arch_coredump_stack_ptr_get (const struct k_thread *thread)
	Get the stack pointer of the thread.
void	arch_coredump_freeze_other_cpus (void)
	Freeze every other online CPU and capture its live register state.
void	arch_coredump_thaw_other_cpus (void)
	Release every CPU frozen by arch_coredump_freeze_other_cpus().
void	arch_coredump_cpu_snapshot_dump (unsigned int cpu)
	Emit a live register snapshot captured for the given CPU index.
void	arch_coredump_priv_stack_dump (struct k_thread *thread)
	Architecture-specific handling of dumping privileged stack.

Detailed Description

Function Documentation

◆ arch_coredump_cpu_snapshot_dump()

void arch_coredump_cpu_snapshot_dump ( unsigned int cpu )

#include <kernel_arch_interface.h>

Emit a live register snapshot captured for the given CPU index.

No-op if that CPU was never successfully frozen (self, never booted, or timed out). Only valid to call between arch_coredump_freeze_other_cpus() and arch_coredump_thaw_other_cpus().

Parameters

cpu	CPU index (0..CONFIG_MP_MAX_NUM_CPUS-1)

◆ arch_coredump_freeze_other_cpus()

void arch_coredump_freeze_other_cpus ( void )

#include <kernel_arch_interface.h>

Freeze every other online CPU and capture its live register state.

Sends an architecture-specific IPI to every CPU other than the caller and waits (with a bounded timeout) for each to report a captured snapshot. A CPU that doesn't respond in time (never booted, or busy with IRQs masked) is simply skipped – this must never block indefinitely.

Must be paired with a later call to arch_coredump_thaw_other_cpus() so frozen CPUs resume; must not be called from more than one CPU at a time.