cregit-Linux how code gets into the kernel

Release 4.14 arch/m32r/boot/compressed/boot.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * 1. load vmlinuz
 *
 * CONFIG_MEMORY_START          +-----------------------+
 *                              |        vmlinuz        |
 *                              +-----------------------+
 * 2. decompressed
 *
 * CONFIG_MEMORY_START          +-----------------------+
 *                              |        vmlinuz        |
 *                              +-----------------------+
 *                              |                       |
 * BOOT_RELOC_ADDR              +-----------------------+
 *                              |                       |
 * KERNEL_DECOMPRESS_ADDR       +-----------------------+
 *                              |       vmlinux         |
 *                              +-----------------------+
 *
 * 3. relocate copy & jump code
 *
 * CONFIG_MEMORY_START          +-----------------------+
 *                              |        vmlinuz        |
 *                              +-----------------------+
 *                              |                       |
 * BOOT_RELOC_ADDR              +-----------------------+
 *                              |    boot(copy&jump)    |
 * KERNEL_DECOMPRESS_ADDR       +-----------------------+
 *                              |       vmlinux         |
 *                              +-----------------------+
 *
 * 4. relocate decompressed kernel
 *
 * CONFIG_MEMORY_START          +-----------------------+
 *                              |        vmlinux        |
 *                              +-----------------------+
 *                              |                       |
 * BOOT_RELOC_ADDR              +-----------------------+
 *                              |     boot(copy&jump)   |
 * KERNEL_DECOMPRESS_ADDR       +-----------------------+
 *                              |                       |
 *                              +-----------------------+
 *
 */
#ifdef __ASSEMBLY__

#define __val(x)	x
#else

#define __val(x)	(x)
#endif


#define DECOMPRESS_OFFSET_BASE	__val(0x00900000)

#define BOOT_RELOC_SIZE		__val(0x00001000)


#define KERNEL_EXEC_ADDR	__val(CONFIG_MEMORY_START)

#define KERNEL_DECOMPRESS_ADDR	__val(CONFIG_MEMORY_START + \
                                      DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)

#define KERNEL_ENTRY		__val(CONFIG_MEMORY_START + 0x1000)


#define BOOT_EXEC_ADDR		__val(CONFIG_MEMORY_START)

#define BOOT_RELOC_ADDR		__val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)

Overall Contributors

PersonTokensPropCommitsCommitProp
Hirokazu Takata5098.04%150.00%
Greg Kroah-Hartman11.96%150.00%
Total51100.00%2100.00%
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