arch/um/kernel/kmsg_dump.c

Source file repositories/reference/linux-study-clean/arch/um/kernel/kmsg_dump.c

File Facts

System
Linux kernel
Corpus path
arch/um/kernel/kmsg_dump.c
Extension
.c
Size
1480 bytes
Lines
66
Domain
Architecture Layer
Bucket
arch/um
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

console_is_usable(con, console_srcu_read_flags(con), true)) {
			break;
		}
	}
	console_srcu_read_unlock(cookie);
	if (con)
		return;

	if (!spin_trylock_irqsave(&lock, flags))
		return;

	kmsg_dump_rewind(&iter);

	printf("kmsg_dump:\n");
	while (kmsg_dump_get_line(&iter, true, line, sizeof(line), &len)) {
		line[len] = '\0';
		printf("%s", line);
	}

	spin_unlock_irqrestore(&lock, flags);
}

static struct kmsg_dumper kmsg_dumper = {
	.dump = kmsg_dumper_stdout
};

static int __init kmsg_dumper_stdout_init(void)
{
	return kmsg_dump_register(&kmsg_dumper);
}

__uml_postsetup(kmsg_dumper_stdout_init);

Annotation

Implementation Notes