modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/arch/arm64/include/asm/module.h
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@@ -1,28 +1,15 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2012 ARM Ltd.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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 #ifndef __ASM_MODULE_H
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 #define __ASM_MODULE_H
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 #include <asm-generic/module.h>
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9
 
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-#define MODULE_ARCH_VERMAGIC	"aarch64"
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-
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 #ifdef CONFIG_ARM64_MODULE_PLTS
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 struct mod_plt_sec {
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-	struct elf64_shdr	*plt;
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+	int			plt_shndx;
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 	int			plt_num_entries;
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 	int			plt_max_entries;
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 };
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@@ -32,14 +19,22 @@
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 	struct mod_plt_sec	init;
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 	/* for CONFIG_DYNAMIC_FTRACE */
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-	struct plt_entry 	*ftrace_trampoline;
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+	struct plt_entry	*ftrace_trampolines;
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+
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+	/* for FIPS 140 certified kernel module */
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+	const Elf64_Rela	*text_relocations;
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+	const Elf64_Rela	*rodata_relocations;
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+	int			num_text_relocations;
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+	int			num_rodata_relocations;
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 };
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 #endif
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-u64 module_emit_plt_entry(struct module *mod, void *loc, const Elf64_Rela *rela,
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+u64 module_emit_plt_entry(struct module *mod, Elf64_Shdr *sechdrs,
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+			  void *loc, const Elf64_Rela *rela,
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 			  Elf64_Sym *sym);
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-u64 module_emit_veneer_for_adrp(struct module *mod, void *loc, u64 val);
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+u64 module_emit_veneer_for_adrp(struct module *mod, Elf64_Shdr *sechdrs,
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+				void *loc, u64 val);
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 #ifdef CONFIG_RANDOMIZE_BASE
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 extern u64 module_alloc_base;
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@@ -56,39 +51,24 @@
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 	 * is exactly what we are dealing with here, we are free to use x16
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 	 * as a scratch register in the PLT veneers.
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 	 */
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-	__le32	mov0;	/* movn	x16, #0x....			*/
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-	__le32	mov1;	/* movk	x16, #0x...., lsl #16		*/
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-	__le32	mov2;	/* movk	x16, #0x...., lsl #32		*/
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+	__le32	adrp;	/* adrp	x16, ....			*/
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+	__le32	add;	/* add	x16, x16, #0x....		*/
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 	__le32	br;	/* br	x16				*/
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 };
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-static inline struct plt_entry get_plt_entry(u64 val)
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+static inline bool is_forbidden_offset_for_adrp(void *place)
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 {
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-	/*
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-	 * MOVK/MOVN/MOVZ opcode:
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-	 * +--------+------------+--------+-----------+-------------+---------+
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-	 * | sf[31] | opc[30:29] | 100101 | hw[22:21] | imm16[20:5] | Rd[4:0] |
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-	 * +--------+------------+--------+-----------+-------------+---------+
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-	 *
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-	 * Rd     := 0x10 (x16)
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-	 * hw     := 0b00 (no shift), 0b01 (lsl #16), 0b10 (lsl #32)
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-	 * opc    := 0b11 (MOVK), 0b00 (MOVN), 0b10 (MOVZ)
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-	 * sf     := 1 (64-bit variant)
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-	 */
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-	return (struct plt_entry){
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-		cpu_to_le32(0x92800010 | (((~val      ) & 0xffff)) << 5),
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-		cpu_to_le32(0xf2a00010 | ((( val >> 16) & 0xffff)) << 5),
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-		cpu_to_le32(0xf2c00010 | ((( val >> 32) & 0xffff)) << 5),
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-		cpu_to_le32(0xd61f0200)
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-	};
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+	return IS_ENABLED(CONFIG_ARM64_ERRATUM_843419) &&
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+	       cpus_have_const_cap(ARM64_WORKAROUND_843419) &&
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+	       ((u64)place & 0xfff) >= 0xff8;
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 }
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-static inline bool plt_entries_equal(const struct plt_entry *a,
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-				     const struct plt_entry *b)
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+struct plt_entry get_plt_entry(u64 dst, void *pc);
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+bool plt_entries_equal(const struct plt_entry *a, const struct plt_entry *b);
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+
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+static inline bool plt_entry_is_initialized(const struct plt_entry *e)
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 {
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-	return a->mov0 == b->mov0 &&
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-	       a->mov1 == b->mov1 &&
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-	       a->mov2 == b->mov2;
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+	return e->adrp || e->add || e->br;
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 }
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 #endif /* __ASM_MODULE_H */