forked from Minki/linux
d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
|
|
int sym64_rel;
|
|
|
|
#define SYM64_ABS_VAL 0xffff880000cccccc
|
|
#define SYM32_ABS_VAL 0xf800cccc
|
|
#define SYM16_ABS_VAL 0xf8cc
|
|
|
|
#define __SET_ABS(name, val) asm(".globl " #name "; .set "#name ", " #val)
|
|
#define SET_ABS(name, val) __SET_ABS(name, val)
|
|
|
|
SET_ABS(sym64_abs, SYM64_ABS_VAL);
|
|
SET_ABS(sym32_abs, SYM32_ABS_VAL);
|
|
SET_ABS(sym16_abs, SYM16_ABS_VAL);
|
|
|
|
asmlinkage u64 absolute_data64(void);
|
|
asmlinkage u64 absolute_data32(void);
|
|
asmlinkage u64 absolute_data16(void);
|
|
asmlinkage u64 signed_movw(void);
|
|
asmlinkage u64 unsigned_movw(void);
|
|
asmlinkage u64 relative_adrp(void);
|
|
asmlinkage u64 relative_adrp_far(void);
|
|
asmlinkage u64 relative_adr(void);
|
|
asmlinkage u64 relative_data64(void);
|
|
asmlinkage u64 relative_data32(void);
|
|
asmlinkage u64 relative_data16(void);
|
|
|
|
static struct {
|
|
char name[32];
|
|
u64 (*f)(void);
|
|
u64 expect;
|
|
} const funcs[] = {
|
|
{ "R_AARCH64_ABS64", absolute_data64, UL(SYM64_ABS_VAL) },
|
|
{ "R_AARCH64_ABS32", absolute_data32, UL(SYM32_ABS_VAL) },
|
|
{ "R_AARCH64_ABS16", absolute_data16, UL(SYM16_ABS_VAL) },
|
|
{ "R_AARCH64_MOVW_SABS_Gn", signed_movw, UL(SYM64_ABS_VAL) },
|
|
{ "R_AARCH64_MOVW_UABS_Gn", unsigned_movw, UL(SYM64_ABS_VAL) },
|
|
{ "R_AARCH64_ADR_PREL_PG_HI21", relative_adrp, (u64)&sym64_rel },
|
|
{ "R_AARCH64_ADR_PREL_PG_HI21", relative_adrp_far, (u64)&memstart_addr },
|
|
{ "R_AARCH64_ADR_PREL_LO21", relative_adr, (u64)&sym64_rel },
|
|
{ "R_AARCH64_PREL64", relative_data64, (u64)&sym64_rel },
|
|
{ "R_AARCH64_PREL32", relative_data32, (u64)&sym64_rel },
|
|
{ "R_AARCH64_PREL16", relative_data16, (u64)&sym64_rel },
|
|
};
|
|
|
|
static int reloc_test_init(void)
|
|
{
|
|
int i;
|
|
|
|
pr_info("Relocation test:\n");
|
|
pr_info("-------------------------------------------------------\n");
|
|
|
|
for (i = 0; i < ARRAY_SIZE(funcs); i++) {
|
|
u64 ret = funcs[i].f();
|
|
|
|
pr_info("%-31s 0x%016llx %s\n", funcs[i].name, ret,
|
|
ret == funcs[i].expect ? "pass" : "fail");
|
|
if (ret != funcs[i].expect)
|
|
pr_err("Relocation failed, expected 0x%016llx, not 0x%016llx\n",
|
|
funcs[i].expect, ret);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void reloc_test_exit(void)
|
|
{
|
|
}
|
|
|
|
module_init(reloc_test_init);
|
|
module_exit(reloc_test_exit);
|
|
|
|
MODULE_LICENSE("GPL v2");
|