arch/openrisc/kernel/vmlinux.lds.S

Source file repositories/reference/linux-study-clean/arch/openrisc/kernel/vmlinux.lds.S

File Facts

System
Linux kernel
Corpus path
arch/openrisc/kernel/vmlinux.lds.S
Extension
.S
Size
2266 bytes
Lines
110
Domain
Architecture Layer
Bucket
arch/openrisc
Inferred role
Architecture Layer: arch/openrisc
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#  define LOAD_OFFSET  PAGE_OFFSET
#  define LOAD_BASE    PAGE_OFFSET

#include <asm/page.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
#include <asm-generic/vmlinux.lds.h>

#ifdef __OR1K__
#define __OUTPUT_FORMAT        "elf32-or1k"
#else
#define __OUTPUT_FORMAT        "elf32-or32"
#endif

OUTPUT_FORMAT(__OUTPUT_FORMAT, __OUTPUT_FORMAT, __OUTPUT_FORMAT)
jiffies = jiffies_64 + 4;

SECTIONS
{
        /* Read-only sections, merged into text segment: */
        . = LOAD_BASE ;

	_text = .;

	/* _s_kernel_ro must be page aligned */
	. = ALIGN(PAGE_SIZE);
	_s_kernel_ro = .;

        .text                   : AT(ADDR(.text) - LOAD_OFFSET)
	{
          _stext = .;
	  HEAD_TEXT
	  TEXT_TEXT
	  SCHED_TEXT
	  LOCK_TEXT
	  KPROBES_TEXT
	  IRQENTRY_TEXT
	  SOFTIRQENTRY_TEXT
	  *(.fixup)
	  *(.text.__*)
	  _etext = .;
	}
	/* TODO: Check if fixup and text.__* are really necessary
	 * fixup is definitely necessary
	 */

	_sdata = .;

	/* Page alignment required for RO_DATA */
	RO_DATA(PAGE_SIZE)
	_e_kernel_ro = .;

	/* Whatever comes after _e_kernel_ro had better be page-aligend, too */

	/* 32 here is cacheline size... recheck this */
	RW_DATA(32, PAGE_SIZE, PAGE_SIZE)

        _edata  =  .;

	EXCEPTION_TABLE(4)

	/* Init code and data */
	. = ALIGN(PAGE_SIZE);
	__init_begin = .;

	/* Page aligned */
	INIT_TEXT_SECTION(PAGE_SIZE)

	/* Align __setup_start on 16 byte boundary */
	INIT_DATA_SECTION(16)

Annotation

Implementation Notes