arch/hexagon/kernel/trampoline.S

File Facts

System

Linux kernel

Corpus path

arch/hexagon/kernel/trampoline.S

Extension

.S

Size

585 bytes

Lines

23

Domain

Architecture Layer

Bucket

arch/hexagon

Inferred role

Architecture Layer: arch/hexagon

Status

atlas-only

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.

Dependency Surface

• asm/unistd.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#include <asm/unistd.h>

/*  Sig trampolines - call sys_sigreturn or sys_rt_sigreturn as appropriate */

/*  plain sigreturn is gone.  */

	.globl __rt_sigtramp_template
__rt_sigtramp_template:
	r6 = #__NR_rt_sigreturn;
	trap0(#1);

Annotation

• Immediate include surface: `asm/unistd.h`.
• Atlas domain: Architecture Layer / arch/hexagon.
• Implementation status: atlas-only.

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.