kernel/trace/trace_irqsoff.c
Source file repositories/reference/linux-study-clean/kernel/trace/trace_irqsoff.c
File Facts
- System
- Linux kernel
- Corpus path
kernel/trace/trace_irqsoff.c- Extension
.c- Size
- 18924 bytes
- Lines
- 780
- Domain
- Core OS
- Bucket
- Scheduler, Processes, Timers, Sync, And Syscalls
- Inferred role
- Core OS: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/kallsyms.hlinux/uaccess.hlinux/module.hlinux/ftrace.hlinux/kprobes.htrace.htrace/events/preemptirq.h
Detected Declarations
function preempt_tracefunction irq_tracefunction irqsoff_display_graphfunction func_prolog_decfunction irqsoff_tracer_callfunction irqsoff_display_graphfunction irqsoff_graph_entryfunction irqsoff_graph_returnfunction irqsoff_trace_openfunction irqsoff_trace_closefunction irqsoff_print_linefunction irqsoff_print_headerfunction __trace_functionfunction __trace_functionfunction irqsoff_print_linefunction irqsoff_trace_openfunction irqsoff_print_headerfunction report_latencyfunction check_critical_timingfunction start_critical_timingfunction stop_critical_timingfunction start_critical_timingsfunction stop_critical_timingsfunction register_irqsoff_functionfunction unregister_irqsoff_functionfunction irqsoff_function_setfunction register_irqsoff_functionfunction unregister_irqsoff_functionfunction irqsoff_flag_changedfunction start_irqsoff_tracerfunction stop_irqsoff_tracerfunction __irqsoff_tracer_initfunction __irqsoff_tracer_resetfunction irqsoff_tracer_startfunction irqsoff_tracer_stopfunction tracer_hardirqs_onfunction tracer_hardirqs_offfunction irqsoff_tracer_initfunction irqsoff_tracer_resetfunction tracer_preempt_onfunction tracer_preempt_offfunction preemptoff_tracer_initfunction preemptoff_tracer_resetfunction preemptirqsoff_tracer_initfunction preemptirqsoff_tracer_resetfunction init_irqsoff_tracermodule init init_irqsoff_tracerexport start_critical_timings
Annotated Snippet
core_initcall(init_irqsoff_tracer);
#endif /* IRQSOFF_TRACER || PREEMPTOFF_TRACER */Annotation
- Immediate include surface: `linux/kallsyms.h`, `linux/uaccess.h`, `linux/module.h`, `linux/ftrace.h`, `linux/kprobes.h`, `trace.h`, `trace/events/preemptirq.h`.
- Detected declarations: `function preempt_trace`, `function irq_trace`, `function irqsoff_display_graph`, `function func_prolog_dec`, `function irqsoff_tracer_call`, `function irqsoff_display_graph`, `function irqsoff_graph_entry`, `function irqsoff_graph_return`, `function irqsoff_trace_open`, `function irqsoff_trace_close`.
- Atlas domain: Core OS / Scheduler, Processes, Timers, Sync, And Syscalls.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.