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77 lines
2.2 KiB
77 lines
2.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (C) 2017 Linaro, Ltd. <[email protected]> |
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*/ |
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#include <linux/module.h> |
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int sym64_rel; |
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#define SYM64_ABS_VAL 0xffff880000cccccc |
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#define SYM32_ABS_VAL 0xf800cccc |
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#define SYM16_ABS_VAL 0xf8cc |
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#define __SET_ABS(name, val) asm(".globl " #name "; .set "#name ", " #val) |
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#define SET_ABS(name, val) __SET_ABS(name, val) |
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SET_ABS(sym64_abs, SYM64_ABS_VAL); |
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SET_ABS(sym32_abs, SYM32_ABS_VAL); |
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SET_ABS(sym16_abs, SYM16_ABS_VAL); |
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asmlinkage u64 absolute_data64(void); |
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asmlinkage u64 absolute_data32(void); |
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asmlinkage u64 absolute_data16(void); |
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asmlinkage u64 signed_movw(void); |
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asmlinkage u64 unsigned_movw(void); |
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asmlinkage u64 relative_adrp(void); |
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asmlinkage u64 relative_adrp_far(void); |
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asmlinkage u64 relative_adr(void); |
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asmlinkage u64 relative_data64(void); |
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asmlinkage u64 relative_data32(void); |
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asmlinkage u64 relative_data16(void); |
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static struct { |
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char name[32]; |
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u64 (*f)(void); |
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u64 expect; |
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} const funcs[] = { |
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{ "R_AARCH64_ABS64", absolute_data64, UL(SYM64_ABS_VAL) }, |
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{ "R_AARCH64_ABS32", absolute_data32, UL(SYM32_ABS_VAL) }, |
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{ "R_AARCH64_ABS16", absolute_data16, UL(SYM16_ABS_VAL) }, |
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{ "R_AARCH64_MOVW_SABS_Gn", signed_movw, UL(SYM64_ABS_VAL) }, |
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{ "R_AARCH64_MOVW_UABS_Gn", unsigned_movw, UL(SYM64_ABS_VAL) }, |
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{ "R_AARCH64_ADR_PREL_PG_HI21", relative_adrp, (u64)&sym64_rel }, |
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{ "R_AARCH64_ADR_PREL_PG_HI21", relative_adrp_far, (u64)&memstart_addr }, |
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{ "R_AARCH64_ADR_PREL_LO21", relative_adr, (u64)&sym64_rel }, |
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{ "R_AARCH64_PREL64", relative_data64, (u64)&sym64_rel }, |
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{ "R_AARCH64_PREL32", relative_data32, (u64)&sym64_rel }, |
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{ "R_AARCH64_PREL16", relative_data16, (u64)&sym64_rel }, |
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}; |
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static int reloc_test_init(void) |
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{ |
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int i; |
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pr_info("Relocation test:\n"); |
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pr_info("-------------------------------------------------------\n"); |
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for (i = 0; i < ARRAY_SIZE(funcs); i++) { |
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u64 ret = funcs[i].f(); |
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pr_info("%-31s 0x%016llx %s\n", funcs[i].name, ret, |
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ret == funcs[i].expect ? "pass" : "fail"); |
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if (ret != funcs[i].expect) |
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pr_err("Relocation failed, expected 0x%016llx, not 0x%016llx\n", |
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funcs[i].expect, ret); |
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} |
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return 0; |
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} |
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static void reloc_test_exit(void) |
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{ |
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} |
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module_init(reloc_test_init); |
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module_exit(reloc_test_exit); |
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MODULE_LICENSE("GPL v2");
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