| // Copyright 2020 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <lib/arch/asm.h> |
| #include <zircon/boot/image.h> |
| |
| // The linker script (phys.ld) places this section first in the image. It |
| // provides the ZBI headers for the kernel so that the whole load image is |
| // a standalone ZBI container of one (ZBI_TYPE_KERNEL_*) item. |
| .section .boot.header, "a", %progbits |
| |
| ZBI_CONTAINER_HEADER(kZbiContainerHeader, PHYS_LOAD_END - kZbiItemHeader) |
| |
| // zbi_header_t |
| .object kZbiItemHeader, rodata, nosection=nosection |
| #ifdef __aarch64__ |
| .int ZBI_TYPE_KERNEL_ARM64 // type |
| #elif defined(__x86_64__) |
| .int ZBI_TYPE_KERNEL_X64 // type |
| #else |
| #error "what machine?" |
| #endif |
| .int PHYS_LOAD_END - kZbiKernelHeader // length |
| .int 0 // extra |
| .int ZBI_FLAG_VERSION // flags |
| .int 0, 0 // reserved0, reserved1 |
| .int ZBI_ITEM_MAGIC // magic |
| .int ZBI_ITEM_NO_CRC32 // crc32 |
| .end_object |
| |
| // The zbi-header.ld linker script fragment synthesizes the zbi_kernel_t |
| // contents and places them directly after .boot.header so it appears here. |
| // This cannot be done in assembly without generating relocations that would |
| // make the linker try to generate dynamic fixups under -pie. |
| .label kZbiKernelHeader, type=object |
| .size kZbiKernelHeader, 16 |
