arch/powerpc/kernel/traps.c
Source file repositories/reference/linux-study-clean/arch/powerpc/kernel/traps.c
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/kernel/traps.c- Extension
.c- Size
- 62099 bytes
- Lines
- 2332
- Domain
- Architecture Layer
- Bucket
- arch/powerpc
- 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.
- 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/errno.hlinux/sched.hlinux/sched/debug.hlinux/kernel.hlinux/mm.hlinux/pkeys.hlinux/stddef.hlinux/unistd.hlinux/ptrace.hlinux/user.hlinux/interrupt.hlinux/init.hlinux/extable.hlinux/module.hlinux/prctl.hlinux/delay.hlinux/kprobes.hlinux/kexec.hlinux/backlight.hlinux/bug.hlinux/kdebug.hlinux/ratelimit.hlinux/context_tracking.hlinux/smp.hlinux/console.hlinux/kmsg_dump.hlinux/debugfs.hasm/emulated_ops.hlinux/uaccess.hasm/interrupt.hasm/io.hasm/machdep.h
Detected Declarations
function pmac_backlight_unblankfunction pmac_backlight_unblankfunction panic_flush_kmsg_startfunction panic_flush_kmsg_endfunction oops_beginfunction oops_endfunction panicfunction __diefunction diefunction user_single_step_reportfunction show_signal_msgfunction exception_commonfunction _exception_pkeyfunction _exceptionfunction NMIsfunction HSRRsfunction check_io_accessfunction machine_check_e500mcfunction machine_check_e500function machine_check_genericfunction machine_check_genericfunction die_mcefunction __machine_check_exceptionfunction p9_hmi_special_emufunction __single_step_exceptionfunction emulate_single_stepfunction __parse_fpscrfunction parse_fpefunction emulate_string_instfunction emulate_popcntb_instfunction emulate_iselfunction tm_abort_checkfunction tm_abort_checkfunction emulate_instructionfunction cpu_has_featurefunction cpu_has_featurefunction is_valid_bugaddrfunction emulate_mathfunction emulate_mathfunction do_program_checkfunction get_user_instrfunction tm_unavailablefunction handle_debugfunction RIfunction ppc_warn_emulated_printfunction ppc_warn_emulated_initmodule init ppc_warn_emulated_initexport __debugger
Annotated Snippet
device_initcall(ppc_warn_emulated_init);
#endif /* CONFIG_PPC_EMULATED_STATS */Annotation
- Immediate include surface: `linux/errno.h`, `linux/sched.h`, `linux/sched/debug.h`, `linux/kernel.h`, `linux/mm.h`, `linux/pkeys.h`, `linux/stddef.h`, `linux/unistd.h`.
- Detected declarations: `function pmac_backlight_unblank`, `function pmac_backlight_unblank`, `function panic_flush_kmsg_start`, `function panic_flush_kmsg_end`, `function oops_begin`, `function oops_end`, `function panic`, `function __die`, `function die`, `function user_single_step_report`.
- Atlas domain: Architecture Layer / arch/powerpc.
- Implementation status: integration implementation candidate.
- This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.
- 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.