| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* ld script to make ARM Linux kernel |
| * taken from the i386 version by Russell King |
| * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz> |
| */ |
| |
| #ifdef CONFIG_XIP_KERNEL |
| #include "vmlinux-xip.lds.S" |
| #else |
| |
| #include <linux/pgtable.h> |
| #include <asm/vmlinux.lds.h> |
| #include <asm/cache.h> |
| #include <asm/thread_info.h> |
| #include <asm/page.h> |
| #include <asm/mpu.h> |
| |
| OUTPUT_ARCH(arm) |
| ENTRY(stext) |
| |
| #ifndef __ARMEB__ |
| jiffies = jiffies_64; |
| #else |
| jiffies = jiffies_64 + 4; |
| #endif |
| |
| SECTIONS |
| { |
| /* |
| * XXX: The linker does not define how output sections are |
| * assigned to input sections when there are multiple statements |
| * matching the same input section name. There is no documented |
| * order of matching. |
| * |
| * unwind exit sections must be discarded before the rest of the |
| * unwind sections get included. |
| */ |
| /DISCARD/ : { |
| ARM_DISCARD |
| #ifndef CONFIG_SMP_ON_UP |
| *(.alt.smp.init) |
| #endif |
| #ifndef CONFIG_ARM_UNWIND |
| *(.ARM.exidx) *(.ARM.exidx.*) |
| *(.ARM.extab) *(.ARM.extab.*) |
| #endif |
| } |
| |
| . = KERNEL_OFFSET + TEXT_OFFSET; |
| .head.text : { |
| _text = .; |
| HEAD_TEXT |
| } |
| |
| #ifdef CONFIG_STRICT_KERNEL_RWX |
| . = ALIGN(1<<SECTION_SHIFT); |
| #endif |
| |
| #ifdef CONFIG_ARM_MPU |
| . = ALIGN(PMSAv8_MINALIGN); |
| #endif |
| .text : { /* Real text segment */ |
| _stext = .; /* Text and read-only data */ |
| ARM_TEXT |
| } |
| |
| #ifdef CONFIG_DEBUG_ALIGN_RODATA |
| . = ALIGN(1<<SECTION_SHIFT); |
| #endif |
| _etext = .; /* End of text section */ |
| |
| RO_DATA(PAGE_SIZE) |
| |
| . = ALIGN(4); |
| __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { |
| __start___ex_table = .; |
| ARM_MMU_KEEP(KEEP(*(__ex_table))) |
| __stop___ex_table = .; |
| } |
| |
| #ifdef CONFIG_ARM_UNWIND |
| ARM_UNWIND_SECTIONS |
| #endif |
| |
| #ifdef CONFIG_STRICT_KERNEL_RWX |
| . = ALIGN(1<<SECTION_SHIFT); |
| #else |
| . = ALIGN(PAGE_SIZE); |
| #endif |
| __init_begin = .; |
| |
| ARM_VECTORS |
| INIT_TEXT_SECTION(8) |
| .exit.text : { |
| ARM_EXIT_KEEP(EXIT_TEXT) |
| } |
| .init.proc.info : { |
| ARM_CPU_DISCARD(PROC_INFO) |
| } |
| .init.arch.info : { |
| __arch_info_begin = .; |
| KEEP(*(.arch.info.init)) |
| __arch_info_end = .; |
| } |
| .init.tagtable : { |
| __tagtable_begin = .; |
| *(.taglist.init) |
| __tagtable_end = .; |
| } |
| #ifdef CONFIG_SMP_ON_UP |
| .init.smpalt : { |
| __smpalt_begin = .; |
| *(.alt.smp.init) |
| __smpalt_end = .; |
| } |
| #endif |
| .init.pv_table : { |
| __pv_table_begin = .; |
| KEEP(*(.pv_table)) |
| __pv_table_end = .; |
| } |
| |
| INIT_DATA_SECTION(16) |
| |
| .exit.data : { |
| ARM_EXIT_KEEP(EXIT_DATA) |
| } |
| |
| #ifdef CONFIG_SMP |
| PERCPU_SECTION(L1_CACHE_BYTES) |
| #endif |
| |
| #ifdef CONFIG_HAVE_TCM |
| ARM_TCM |
| #endif |
| |
| #ifdef CONFIG_STRICT_KERNEL_RWX |
| . = ALIGN(1<<SECTION_SHIFT); |
| #else |
| . = ALIGN(THREAD_ALIGN); |
| #endif |
| __init_end = .; |
| |
| _sdata = .; |
| RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN) |
| _edata = .; |
| |
| BSS_SECTION(0, 0, 0) |
| #ifdef CONFIG_ARM_MPU |
| . = ALIGN(PMSAv8_MINALIGN); |
| #endif |
| _end = .; |
| |
| STABS_DEBUG |
| DWARF_DEBUG |
| ARM_DETAILS |
| |
| ARM_ASSERTS |
| } |
| |
| #ifdef CONFIG_STRICT_KERNEL_RWX |
| /* |
| * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will |
| * be the first section-aligned location after __start_rodata. Otherwise, |
| * it will be equal to __start_rodata. |
| */ |
| __start_rodata_section_aligned = ALIGN(__start_rodata, 1 << SECTION_SHIFT); |
| #endif |
| |
| /* |
| * These must never be empty |
| * If you have to comment these two assert statements out, your |
| * binutils is too old (for other reasons as well) |
| */ |
| ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support") |
| #ifndef CONFIG_COMPILE_TEST |
| ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined") |
| #endif |
| |
| #endif /* CONFIG_XIP_KERNEL */ |