arch/m68k/kernel/time.c

File Facts

System

Linux kernel

Corpus path

arch/m68k/kernel/time.c

Extension

.c

Size

3835 bytes

Lines

158

Domain

Architecture Layer

Bucket

arch/m68k

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration 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.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/errno.h
• linux/export.h
• linux/module.h
• linux/sched.h
• linux/sched/loadavg.h
• linux/kernel.h
• linux/param.h
• linux/string.h
• linux/mm.h
• linux/rtc.h
• linux/platform_device.h
• asm/machdep.h
• asm/io.h
• asm/irq_regs.h
• linux/time.h
• linux/timex.h
• linux/profile.h

Detected Declarations

• function timer_heartbeat
• function read_persistent_clock64
• function rtc_generic_get_time
• function rtc_generic_set_time
• function rtc_ioctl
• function rtc_init
• function time_init
• module init rtc_init
• export mach_random_get_entropy
• export mach_hwclk
• export mach_get_rtc_pll
• export mach_set_rtc_pll

Annotated Snippet

module_init(rtc_init);
#endif /* CONFIG_RTC_DRV_GENERIC */
#endif /* CONFIG_M68KCLASSIC || SUN3 */

void __init time_init(void)
{
	mach_sched_init();
}

Annotation

• Immediate include surface: `linux/errno.h`, `linux/export.h`, `linux/module.h`, `linux/sched.h`, `linux/sched/loadavg.h`, `linux/kernel.h`, `linux/param.h`, `linux/string.h`.
• Detected declarations: `function timer_heartbeat`, `function read_persistent_clock64`, `function rtc_generic_get_time`, `function rtc_generic_set_time`, `function rtc_ioctl`, `function rtc_init`, `function time_init`, `module init rtc_init`, `export mach_random_get_entropy`, `export mach_hwclk`.
• Atlas domain: Architecture Layer / arch/m68k.
• Implementation status: integration implementation candidate.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.