mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 22:45:23 +07:00
214fad5507
This module tests the module loader's ELF relocation processing
routines. When loaded, it logs output like below.
Relocation test:
-------------------------------------------------------
R_AARCH64_ABS64 0xffff880000cccccc pass
R_AARCH64_ABS32 0x00000000f800cccc pass
R_AARCH64_ABS16 0x000000000000f8cc pass
R_AARCH64_MOVW_SABS_Gn 0xffff880000cccccc pass
R_AARCH64_MOVW_UABS_Gn 0xffff880000cccccc pass
R_AARCH64_ADR_PREL_LO21 0xffffff9cf4d1a400 pass
R_AARCH64_PREL64 0xffffff9cf4d1a400 pass
R_AARCH64_PREL32 0xffffff9cf4d1a400 pass
R_AARCH64_PREL16 0xffffff9cf4d1a400 pass
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
84 lines
1.4 KiB
ArmAsm
84 lines
1.4 KiB
ArmAsm
/*
|
|
* Copyright (C) 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
ENTRY(absolute_data64)
|
|
ldr x0, 0f
|
|
ret
|
|
0: .quad sym64_abs
|
|
ENDPROC(absolute_data64)
|
|
|
|
ENTRY(absolute_data32)
|
|
ldr w0, 0f
|
|
ret
|
|
0: .long sym32_abs
|
|
ENDPROC(absolute_data32)
|
|
|
|
ENTRY(absolute_data16)
|
|
adr x0, 0f
|
|
ldrh w0, [x0]
|
|
ret
|
|
0: .short sym16_abs, 0
|
|
ENDPROC(absolute_data16)
|
|
|
|
ENTRY(signed_movw)
|
|
movz x0, #:abs_g2_s:sym64_abs
|
|
movk x0, #:abs_g1_nc:sym64_abs
|
|
movk x0, #:abs_g0_nc:sym64_abs
|
|
ret
|
|
ENDPROC(signed_movw)
|
|
|
|
ENTRY(unsigned_movw)
|
|
movz x0, #:abs_g3:sym64_abs
|
|
movk x0, #:abs_g2_nc:sym64_abs
|
|
movk x0, #:abs_g1_nc:sym64_abs
|
|
movk x0, #:abs_g0_nc:sym64_abs
|
|
ret
|
|
ENDPROC(unsigned_movw)
|
|
|
|
#ifndef CONFIG_ARM64_ERRATUM_843419
|
|
|
|
ENTRY(relative_adrp)
|
|
adrp x0, sym64_rel
|
|
add x0, x0, #:lo12:sym64_rel
|
|
ret
|
|
ENDPROC(relative_adrp)
|
|
|
|
#endif
|
|
|
|
ENTRY(relative_adr)
|
|
adr x0, sym64_rel
|
|
ret
|
|
ENDPROC(relative_adr)
|
|
|
|
ENTRY(relative_data64)
|
|
adr x1, 0f
|
|
ldr x0, [x1]
|
|
add x0, x0, x1
|
|
ret
|
|
0: .quad sym64_rel - .
|
|
ENDPROC(relative_data64)
|
|
|
|
ENTRY(relative_data32)
|
|
adr x1, 0f
|
|
ldr w0, [x1]
|
|
add x0, x0, x1
|
|
ret
|
|
0: .long sym64_rel - .
|
|
ENDPROC(relative_data32)
|
|
|
|
ENTRY(relative_data16)
|
|
adr x1, 0f
|
|
ldrsh w0, [x1]
|
|
add x0, x0, x1
|
|
ret
|
|
0: .short sym64_rel - ., 0
|
|
ENDPROC(relative_data16)
|