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https://github.com/torvalds/linux.git
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a8356cdb5b
1, Make -mstrict-align configurable; 2, Add kernel relocation and KASLR support; 3, Add single kernel image implementation for kdump; 4, Add hardware breakpoints/watchpoints support; 5, Add kprobes/kretprobes/kprobes_on_ftrace support; 6, Add LoongArch support for some selftests. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmP+9H0WHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImerz+D/98MjkLXM4qtgfAxuBKpVdEVA4U bzO19UlpqWlwTJbwrhf0GYsRrAis37PTVJG4eNORJairJ/oTkMtEEBPhwq0D9Whc URDEh+VrjzFztLsu2OlvzOA9gE7lpg+xAx2LKflP7ixlOELOWeercDLW3octp5/J CJDE8wPaw9tJrMHFWuiVybs03yZmY3YFV55JdWL9hY8Ryy4DY5997mruOfzjvHpl EfDgQM2zCn2JSQwaD+Kl3MHxHyRx07Tj2wnZAh9ptaGeptK/yplc7nqRwhe7BevS QwClhJNPICcOi+evZ7cDUY0PTL4evpw2KRnF1N4zw+58RhZECjVrCEJNdf6L1scj muptQngWKrE/TJvn4way3cJr44stSCtT71elPhn629S23my/CauMmFqCqKpYOPOf pxwzzCaqDcaZKwMu96qBkZS76tIrhoNeNFntj+C9RS+8ezY3+o144S3vF1A6A9Zb M4gwa2NiQuLqnCUwKK6dZkLQVX2NMIMViUkYNKdUStxNWx/K7fFmXcl0ycAFpGYp 8Q95LLH34jUrpSgqMSCmcylsPvNiN1QnuXFnw8Tu+zDthp5dOzio60tORLPM1ZUq gobPeGjeTQInq4eMCf2B5HH8fOMVtJyj6H4K9G1M6HUMg64UtcBp6BvEbwPxTxNN sIOFUjDfDnBiIXWF4w== =SzL5 -----END PGP SIGNATURE----- Merge tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch updates from Huacai Chen: - Make -mstrict-align configurable - Add kernel relocation and KASLR support - Add single kernel image implementation for kdump - Add hardware breakpoints/watchpoints support - Add kprobes/kretprobes/kprobes_on_ftrace support - Add LoongArch support for some selftests. * tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (23 commits) selftests/ftrace: Add LoongArch kprobe args string tests support selftests/seccomp: Add LoongArch selftesting support tools: Add LoongArch build infrastructure samples/kprobes: Add LoongArch support LoongArch: Mark some assembler symbols as non-kprobe-able LoongArch: Add kprobes on ftrace support LoongArch: Add kretprobes support LoongArch: Add kprobes support LoongArch: Simulate branch and PC* instructions LoongArch: ptrace: Add hardware single step support LoongArch: ptrace: Add function argument access API LoongArch: ptrace: Expose hardware breakpoints to debuggers LoongArch: Add hardware breakpoints/watchpoints support LoongArch: kdump: Add crashkernel=YM handling LoongArch: kdump: Add single kernel image implementation LoongArch: Add support for kernel address space layout randomization (KASLR) LoongArch: Add support for kernel relocation LoongArch: Add la_abs macro implementation LoongArch: Add JUMP_VIRT_ADDR macro implementation to avoid using la.abs LoongArch: Use la.pcrel instead of la.abs when it's trivially possible ...
156 lines
2.7 KiB
ArmAsm
156 lines
2.7 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/sizes.h>
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#include <asm/asm-offsets.h>
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#include <asm/thread_info.h>
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#define PAGE_SIZE _PAGE_SIZE
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#define RO_EXCEPTION_TABLE_ALIGN 4
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/*
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* Put .bss..swapper_pg_dir as the first thing in .bss. This will
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* ensure that it has .bss alignment (64K).
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*/
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#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
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#include <asm-generic/vmlinux.lds.h>
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#include "image-vars.h"
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/*
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* Max avaliable Page Size is 64K, so we set SectionAlignment
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* field of EFI application to 64K.
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*/
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PECOFF_FILE_ALIGN = 0x200;
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PECOFF_SEGMENT_ALIGN = 0x10000;
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OUTPUT_ARCH(loongarch)
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ENTRY(kernel_entry)
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PHDRS {
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text PT_LOAD FLAGS(7); /* RWX */
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note PT_NOTE FLAGS(4); /* R__ */
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}
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jiffies = jiffies_64;
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SECTIONS
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{
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. = VMLINUX_LOAD_ADDRESS;
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_text = .;
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HEAD_TEXT_SECTION
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. = ALIGN(PECOFF_SEGMENT_ALIGN);
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_stext = .;
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.text : {
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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KPROBES_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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*(.fixup)
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*(.gnu.warning)
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} :text = 0
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. = ALIGN(PECOFF_SEGMENT_ALIGN);
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_etext = .;
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/*
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* struct alt_inst entries. From the header (alternative.h):
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* "Alternative instructions for different CPU types or capabilities"
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* Think locking instructions on spinlocks.
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*/
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. = ALIGN(4);
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.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
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__alt_instructions = .;
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*(.altinstructions)
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__alt_instructions_end = .;
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}
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#ifdef CONFIG_RELOCATABLE
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. = ALIGN(8);
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.la_abs : AT(ADDR(.la_abs) - LOAD_OFFSET) {
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__la_abs_begin = .;
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*(.la_abs)
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__la_abs_end = .;
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}
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#endif
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.got : ALIGN(16) { *(.got) }
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.plt : ALIGN(16) { *(.plt) }
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.got.plt : ALIGN(16) { *(.got.plt) }
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.data.rel : { *(.data.rel*) }
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. = ALIGN(PECOFF_SEGMENT_ALIGN);
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__init_begin = .;
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__inittext_begin = .;
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INIT_TEXT_SECTION(PAGE_SIZE)
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.exit.text : {
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EXIT_TEXT
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}
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. = ALIGN(PECOFF_SEGMENT_ALIGN);
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__inittext_end = .;
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__initdata_begin = .;
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INIT_DATA_SECTION(16)
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.exit.data : {
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EXIT_DATA
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}
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#ifdef CONFIG_SMP
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PERCPU_SECTION(1 << CONFIG_L1_CACHE_SHIFT)
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#endif
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.init.bss : {
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*(.init.bss)
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}
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. = ALIGN(PECOFF_SEGMENT_ALIGN);
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__initdata_end = .;
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__init_end = .;
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_sdata = .;
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RO_DATA(4096)
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RW_DATA(1 << CONFIG_L1_CACHE_SHIFT, PAGE_SIZE, THREAD_SIZE)
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.rela.dyn : ALIGN(8) {
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__rela_dyn_begin = .;
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*(.rela.dyn) *(.rela*)
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__rela_dyn_end = .;
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}
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.sdata : {
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*(.sdata)
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}
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.edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGN); }
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_edata = .;
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BSS_SECTION(0, SZ_64K, 8)
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. = ALIGN(PECOFF_SEGMENT_ALIGN);
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_end = .;
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STABS_DEBUG
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DWARF_DEBUG
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ELF_DETAILS
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.gptab.sdata : {
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*(.gptab.data)
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*(.gptab.sdata)
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}
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.gptab.sbss : {
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*(.gptab.bss)
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*(.gptab.sbss)
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}
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DISCARDS
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/DISCARD/ : {
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*(.dynamic .dynsym .dynstr .hash .gnu.hash)
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*(.gnu.attributes)
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*(.options)
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*(.eh_frame)
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}
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}
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