mirror of https://gitee.com/openkylin/linux.git
selftests/powerpc: Add ptrace tests for GPR/FPR registers
This patch adds ptrace interface test for GPR/FPR registers. This adds ptrace interface based helper functions related to GPR/FPR access and some assembly helper functions related to GPR/FPR registers. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> [mpe: Add #defines for the new note types when headers don't define them] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Anshuman Khandual
Michael Ellerman
parent
15ec3997aa
commit
f666ad413d
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@ -26,7 +26,8 @@ SUB_DIRS = alignment \
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syscalls \
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tm \
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vphn \
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math
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math \
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ptrace
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endif
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@ -81,4 +81,65 @@
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#define STXVD2X(xs, ra, rb) .long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
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#define LXVD2X(xs, ra, rb) .long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
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#define ASM_LOAD_GPR_IMMED(_asm_symbol_name_immed) \
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"li 14, %[" #_asm_symbol_name_immed "];" \
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"li 15, %[" #_asm_symbol_name_immed "];" \
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"li 16, %[" #_asm_symbol_name_immed "];" \
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"li 17, %[" #_asm_symbol_name_immed "];" \
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"li 18, %[" #_asm_symbol_name_immed "];" \
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"li 19, %[" #_asm_symbol_name_immed "];" \
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"li 20, %[" #_asm_symbol_name_immed "];" \
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"li 21, %[" #_asm_symbol_name_immed "];" \
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"li 22, %[" #_asm_symbol_name_immed "];" \
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"li 23, %[" #_asm_symbol_name_immed "];" \
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"li 24, %[" #_asm_symbol_name_immed "];" \
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"li 25, %[" #_asm_symbol_name_immed "];" \
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"li 26, %[" #_asm_symbol_name_immed "];" \
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"li 27, %[" #_asm_symbol_name_immed "];" \
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"li 28, %[" #_asm_symbol_name_immed "];" \
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"li 29, %[" #_asm_symbol_name_immed "];" \
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"li 30, %[" #_asm_symbol_name_immed "];" \
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"li 31, %[" #_asm_symbol_name_immed "];"
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#define ASM_LOAD_FPR_SINGLE_PRECISION(_asm_symbol_name_addr) \
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"lfs 0, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 1, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 2, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 3, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 4, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 5, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 6, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 7, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 8, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 9, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 10, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 11, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 12, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 13, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 14, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 15, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 16, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 17, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 18, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 19, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 20, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 21, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 22, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 23, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 24, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 25, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 26, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 27, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 28, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 29, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 30, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 31, 0(%[" #_asm_symbol_name_addr "]);"
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#ifndef __ASSEMBLER__
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void store_gpr(unsigned long *addr);
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void load_gpr(unsigned long *addr);
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void load_fpr_single_precision(float *addr);
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void store_fpr_single_precision(float *addr);
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#endif /* end of __ASSEMBLER__ */
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#endif /* _SELFTESTS_POWERPC_REG_H */
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@ -0,0 +1,132 @@
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/*
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* test helper assembly functions
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*
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* Copyright (C) 2016 Simon Guo, IBM Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <ppc-asm.h>
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#include "reg.h"
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/* Non volatile GPR - unsigned long buf[18] */
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FUNC_START(load_gpr)
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ld 14, 0*8(3)
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ld 15, 1*8(3)
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ld 16, 2*8(3)
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ld 17, 3*8(3)
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ld 18, 4*8(3)
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ld 19, 5*8(3)
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ld 20, 6*8(3)
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ld 21, 7*8(3)
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ld 22, 8*8(3)
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ld 23, 9*8(3)
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ld 24, 10*8(3)
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ld 25, 11*8(3)
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ld 26, 12*8(3)
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ld 27, 13*8(3)
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ld 28, 14*8(3)
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ld 29, 15*8(3)
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ld 30, 16*8(3)
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ld 31, 17*8(3)
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blr
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FUNC_END(load_gpr)
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FUNC_START(store_gpr)
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std 14, 0*8(3)
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std 15, 1*8(3)
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std 16, 2*8(3)
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std 17, 3*8(3)
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std 18, 4*8(3)
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std 19, 5*8(3)
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std 20, 6*8(3)
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std 21, 7*8(3)
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std 22, 8*8(3)
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std 23, 9*8(3)
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std 24, 10*8(3)
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std 25, 11*8(3)
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std 26, 12*8(3)
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std 27, 13*8(3)
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std 28, 14*8(3)
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std 29, 15*8(3)
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std 30, 16*8(3)
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std 31, 17*8(3)
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blr
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FUNC_END(store_gpr)
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/* Single Precision Float - float buf[32] */
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FUNC_START(load_fpr_single_precision)
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lfs 0, 0*4(3)
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lfs 1, 1*4(3)
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lfs 2, 2*4(3)
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lfs 3, 3*4(3)
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lfs 4, 4*4(3)
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lfs 5, 5*4(3)
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lfs 6, 6*4(3)
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lfs 7, 7*4(3)
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lfs 8, 8*4(3)
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lfs 9, 9*4(3)
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lfs 10, 10*4(3)
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lfs 11, 11*4(3)
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lfs 12, 12*4(3)
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lfs 13, 13*4(3)
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lfs 14, 14*4(3)
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lfs 15, 15*4(3)
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lfs 16, 16*4(3)
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lfs 17, 17*4(3)
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lfs 18, 18*4(3)
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lfs 19, 19*4(3)
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lfs 20, 20*4(3)
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lfs 21, 21*4(3)
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lfs 22, 22*4(3)
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lfs 23, 23*4(3)
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lfs 24, 24*4(3)
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lfs 25, 25*4(3)
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lfs 26, 26*4(3)
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lfs 27, 27*4(3)
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lfs 28, 28*4(3)
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lfs 29, 29*4(3)
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lfs 30, 30*4(3)
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lfs 31, 31*4(3)
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blr
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FUNC_END(load_fpr_single_precision)
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/* Single Precision Float - float buf[32] */
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FUNC_START(store_fpr_single_precision)
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stfs 0, 0*4(3)
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stfs 1, 1*4(3)
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stfs 2, 2*4(3)
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stfs 3, 3*4(3)
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stfs 4, 4*4(3)
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stfs 5, 5*4(3)
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stfs 6, 6*4(3)
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stfs 7, 7*4(3)
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stfs 8, 8*4(3)
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stfs 9, 9*4(3)
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stfs 10, 10*4(3)
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stfs 11, 11*4(3)
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stfs 12, 12*4(3)
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stfs 13, 13*4(3)
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stfs 14, 14*4(3)
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stfs 15, 15*4(3)
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stfs 16, 16*4(3)
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stfs 17, 17*4(3)
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stfs 18, 18*4(3)
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stfs 19, 19*4(3)
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stfs 20, 20*4(3)
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stfs 21, 21*4(3)
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stfs 22, 22*4(3)
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stfs 23, 23*4(3)
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stfs 24, 24*4(3)
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stfs 25, 25*4(3)
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stfs 26, 26*4(3)
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stfs 27, 27*4(3)
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stfs 28, 28*4(3)
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stfs 29, 29*4(3)
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stfs 30, 30*4(3)
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stfs 31, 31*4(3)
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blr
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FUNC_END(store_fpr_single_precision)
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@ -0,0 +1 @@
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ptrace-gpr
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@ -0,0 +1,12 @@
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TEST_PROGS := ptrace-gpr
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include ../../lib.mk
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all: $(TEST_PROGS)
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CFLAGS += -m64 -I../../../../../usr/include
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$(TEST_PROGS): ../harness.c ../utils.c ../lib/reg.S ptrace.h
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clean:
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rm -f $(TEST_PROGS) *.o
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@ -0,0 +1,123 @@
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/*
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* Ptrace test for GPR/FPR registers
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*
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* Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include "ptrace.h"
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#include "ptrace-gpr.h"
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#include "reg.h"
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/* Tracer and Tracee Shared Data */
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int shm_id;
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int *cptr, *pptr;
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float a = FPR_1;
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float b = FPR_2;
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float c = FPR_3;
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void gpr(void)
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{
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unsigned long gpr_buf[18];
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float fpr_buf[32];
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cptr = (int *)shmat(shm_id, NULL, 0);
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asm __volatile__(
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ASM_LOAD_GPR_IMMED(gpr_1)
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ASM_LOAD_FPR_SINGLE_PRECISION(flt_1)
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:
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: [gpr_1]"i"(GPR_1), [flt_1] "r" (&a)
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: "memory", "r6", "r7", "r8", "r9", "r10",
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"r11", "r12", "r13", "r14", "r15", "r16", "r17",
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"r18", "r19", "r20", "r21", "r22", "r23", "r24",
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"r25", "r26", "r27", "r28", "r29", "r30", "r31"
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);
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cptr[1] = 1;
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while (!cptr[0])
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asm volatile("" : : : "memory");
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shmdt((void *)cptr);
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store_gpr(gpr_buf);
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store_fpr_single_precision(fpr_buf);
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if (validate_gpr(gpr_buf, GPR_3))
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exit(1);
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if (validate_fpr_float(fpr_buf, c))
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exit(1);
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exit(0);
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}
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int trace_gpr(pid_t child)
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{
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unsigned long gpr[18];
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unsigned long fpr[32];
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FAIL_IF(start_trace(child));
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FAIL_IF(show_gpr(child, gpr));
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FAIL_IF(validate_gpr(gpr, GPR_1));
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FAIL_IF(show_fpr(child, fpr));
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FAIL_IF(validate_fpr(fpr, FPR_1_REP));
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FAIL_IF(write_gpr(child, GPR_3));
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FAIL_IF(write_fpr(child, FPR_3_REP));
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FAIL_IF(stop_trace(child));
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return TEST_PASS;
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}
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int ptrace_gpr(void)
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{
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pid_t pid;
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int ret, status;
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shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
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pid = fork();
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if (pid < 0) {
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perror("fork() failed");
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return TEST_FAIL;
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}
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if (pid == 0)
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gpr();
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if (pid) {
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pptr = (int *)shmat(shm_id, NULL, 0);
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while (!pptr[1])
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asm volatile("" : : : "memory");
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ret = trace_gpr(pid);
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if (ret) {
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kill(pid, SIGTERM);
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shmdt((void *)pptr);
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shmctl(shm_id, IPC_RMID, NULL);
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return TEST_FAIL;
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}
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pptr[0] = 1;
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shmdt((void *)pptr);
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ret = wait(&status);
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shmctl(shm_id, IPC_RMID, NULL);
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if (ret != pid) {
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printf("Child's exit status not captured\n");
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return TEST_FAIL;
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}
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return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
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TEST_PASS;
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}
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return TEST_PASS;
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}
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int main(int argc, char *argv[])
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{
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return test_harness(ptrace_gpr, "ptrace_gpr");
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}
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@ -0,0 +1,74 @@
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/*
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* Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#define GPR_1 1
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#define GPR_2 2
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#define GPR_3 3
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#define GPR_4 4
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#define FPR_1 0.001
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#define FPR_2 0.002
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#define FPR_3 0.003
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#define FPR_4 0.004
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#define FPR_1_REP 0x3f50624de0000000
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#define FPR_2_REP 0x3f60624de0000000
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#define FPR_3_REP 0x3f689374c0000000
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#define FPR_4_REP 0x3f70624de0000000
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/* Buffer must have 18 elements */
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int validate_gpr(unsigned long *gpr, unsigned long val)
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{
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int i, found = 1;
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for (i = 0; i < 18; i++) {
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if (gpr[i] != val) {
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printf("GPR[%d]: %lx Expected: %lx\n",
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i+14, gpr[i], val);
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found = 0;
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}
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}
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if (!found)
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return TEST_FAIL;
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return TEST_PASS;
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}
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/* Buffer must have 32 elements */
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int validate_fpr(unsigned long *fpr, unsigned long val)
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{
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int i, found = 1;
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for (i = 0; i < 32; i++) {
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if (fpr[i] != val) {
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printf("FPR[%d]: %lx Expected: %lx\n", i, fpr[i], val);
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found = 0;
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}
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}
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if (!found)
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return TEST_FAIL;
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return TEST_PASS;
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}
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/* Buffer must have 32 elements */
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int validate_fpr_float(float *fpr, float val)
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{
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int i, found = 1;
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for (i = 0; i < 32; i++) {
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if (fpr[i] != val) {
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printf("FPR[%d]: %f Expected: %f\n", i, fpr[i], val);
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found = 0;
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}
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}
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if (!found)
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return TEST_FAIL;
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return TEST_PASS;
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}
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@ -0,0 +1,376 @@
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/*
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* Ptrace interface test helper functions
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*
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* Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
#include <inttypes.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <malloc.h>
|
||||
#include <errno.h>
|
||||
#include <time.h>
|
||||
#include <sys/ptrace.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/uio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/wait.h>
|
||||
#include <sys/signal.h>
|
||||
#include <sys/ipc.h>
|
||||
#include <sys/shm.h>
|
||||
#include <sys/user.h>
|
||||
#include <linux/elf.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/auxvec.h>
|
||||
#include "reg.h"
|
||||
#include "utils.h"
|
||||
|
||||
#define TEST_PASS 0
|
||||
#define TEST_FAIL 1
|
||||
|
||||
struct fpr_regs {
|
||||
unsigned long fpr[32];
|
||||
unsigned long fpscr;
|
||||
};
|
||||
|
||||
|
||||
#ifndef NT_PPC_TAR
|
||||
#define NT_PPC_TAR 0x103
|
||||
#define NT_PPC_PPR 0x104
|
||||
#define NT_PPC_DSCR 0x105
|
||||
#define NT_PPC_EBB 0x106
|
||||
#define NT_PPC_PMU 0x107
|
||||
#define NT_PPC_TM_CGPR 0x108
|
||||
#define NT_PPC_TM_CFPR 0x109
|
||||
#define NT_PPC_TM_CVMX 0x10a
|
||||
#define NT_PPC_TM_CVSX 0x10b
|
||||
#define NT_PPC_TM_SPR 0x10c
|
||||
#define NT_PPC_TM_CTAR 0x10d
|
||||
#define NT_PPC_TM_CPPR 0x10e
|
||||
#define NT_PPC_TM_CDSCR 0x10f
|
||||
#endif
|
||||
|
||||
/* Basic ptrace operations */
|
||||
int start_trace(pid_t child)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = ptrace(PTRACE_ATTACH, child, NULL, NULL);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_ATTACH) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
ret = waitpid(child, NULL, 0);
|
||||
if (ret != child) {
|
||||
perror("waitpid() failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int stop_trace(pid_t child)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = ptrace(PTRACE_DETACH, child, NULL, NULL);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_DETACH) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int cont_trace(pid_t child)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = ptrace(PTRACE_CONT, child, NULL, NULL);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_CONT) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
/* FPR */
|
||||
int show_fpr(pid_t child, unsigned long *fpr)
|
||||
{
|
||||
struct fpr_regs *regs;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
|
||||
ret = ptrace(PTRACE_GETFPREGS, child, NULL, regs);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
if (fpr) {
|
||||
for (i = 0; i < 32; i++)
|
||||
fpr[i] = regs->fpr[i];
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int write_fpr(pid_t child, unsigned long val)
|
||||
{
|
||||
struct fpr_regs *regs;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
|
||||
ret = ptrace(PTRACE_GETFPREGS, child, NULL, regs);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
for (i = 0; i < 32; i++)
|
||||
regs->fpr[i] = val;
|
||||
|
||||
ret = ptrace(PTRACE_SETFPREGS, child, NULL, regs);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int show_ckpt_fpr(pid_t child, unsigned long *fpr)
|
||||
{
|
||||
struct fpr_regs *regs;
|
||||
struct iovec iov;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
|
||||
iov.iov_base = regs;
|
||||
iov.iov_len = sizeof(struct fpr_regs);
|
||||
|
||||
ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CFPR, &iov);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
if (fpr) {
|
||||
for (i = 0; i < 32; i++)
|
||||
fpr[i] = regs->fpr[i];
|
||||
}
|
||||
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int write_ckpt_fpr(pid_t child, unsigned long val)
|
||||
{
|
||||
struct fpr_regs *regs;
|
||||
struct iovec iov;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
|
||||
iov.iov_base = regs;
|
||||
iov.iov_len = sizeof(struct fpr_regs);
|
||||
|
||||
ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CFPR, &iov);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
for (i = 0; i < 32; i++)
|
||||
regs->fpr[i] = val;
|
||||
|
||||
ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CFPR, &iov);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
/* GPR */
|
||||
int show_gpr(pid_t child, unsigned long *gpr)
|
||||
{
|
||||
struct pt_regs *regs;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
|
||||
if (!regs) {
|
||||
perror("malloc() failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
ret = ptrace(PTRACE_GETREGS, child, NULL, regs);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
if (gpr) {
|
||||
for (i = 14; i < 32; i++)
|
||||
gpr[i-14] = regs->gpr[i];
|
||||
}
|
||||
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int write_gpr(pid_t child, unsigned long val)
|
||||
{
|
||||
struct pt_regs *regs;
|
||||
int i, ret;
|
||||
|
||||
regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
|
||||
if (!regs) {
|
||||
perror("malloc() failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
ret = ptrace(PTRACE_GETREGS, child, NULL, regs);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
for (i = 14; i < 32; i++)
|
||||
regs->gpr[i] = val;
|
||||
|
||||
ret = ptrace(PTRACE_SETREGS, child, NULL, regs);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int show_ckpt_gpr(pid_t child, unsigned long *gpr)
|
||||
{
|
||||
struct pt_regs *regs;
|
||||
struct iovec iov;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
|
||||
if (!regs) {
|
||||
perror("malloc() failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
iov.iov_base = (u64 *) regs;
|
||||
iov.iov_len = sizeof(struct pt_regs);
|
||||
|
||||
ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CGPR, &iov);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
if (gpr) {
|
||||
for (i = 14; i < 32; i++)
|
||||
gpr[i-14] = regs->gpr[i];
|
||||
}
|
||||
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
int write_ckpt_gpr(pid_t child, unsigned long val)
|
||||
{
|
||||
struct pt_regs *regs;
|
||||
struct iovec iov;
|
||||
int ret, i;
|
||||
|
||||
regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
|
||||
if (!regs) {
|
||||
perror("malloc() failed\n");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
iov.iov_base = (u64 *) regs;
|
||||
iov.iov_len = sizeof(struct pt_regs);
|
||||
|
||||
ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CGPR, &iov);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
|
||||
for (i = 14; i < 32; i++)
|
||||
regs->gpr[i] = val;
|
||||
|
||||
ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CGPR, &iov);
|
||||
if (ret) {
|
||||
perror("ptrace(PTRACE_GETREGSET) failed");
|
||||
return TEST_FAIL;
|
||||
}
|
||||
return TEST_PASS;
|
||||
}
|
||||
|
||||
/* Analyse TEXASR after TM failure */
|
||||
inline unsigned long get_tfiar(void)
|
||||
{
|
||||
unsigned long ret;
|
||||
|
||||
asm volatile("mfspr %0,%1" : "=r" (ret) : "i" (SPRN_TFIAR));
|
||||
return ret;
|
||||
}
|
||||
|
||||
void analyse_texasr(unsigned long texasr)
|
||||
{
|
||||
printf("TEXASR: %16lx\t", texasr);
|
||||
|
||||
if (texasr & TEXASR_FP)
|
||||
printf("TEXASR_FP ");
|
||||
|
||||
if (texasr & TEXASR_DA)
|
||||
printf("TEXASR_DA ");
|
||||
|
||||
if (texasr & TEXASR_NO)
|
||||
printf("TEXASR_NO ");
|
||||
|
||||
if (texasr & TEXASR_FO)
|
||||
printf("TEXASR_FO ");
|
||||
|
||||
if (texasr & TEXASR_SIC)
|
||||
printf("TEXASR_SIC ");
|
||||
|
||||
if (texasr & TEXASR_NTC)
|
||||
printf("TEXASR_NTC ");
|
||||
|
||||
if (texasr & TEXASR_TC)
|
||||
printf("TEXASR_TC ");
|
||||
|
||||
if (texasr & TEXASR_TIC)
|
||||
printf("TEXASR_TIC ");
|
||||
|
||||
if (texasr & TEXASR_IC)
|
||||
printf("TEXASR_IC ");
|
||||
|
||||
if (texasr & TEXASR_IFC)
|
||||
printf("TEXASR_IFC ");
|
||||
|
||||
if (texasr & TEXASR_ABT)
|
||||
printf("TEXASR_ABT ");
|
||||
|
||||
if (texasr & TEXASR_SPD)
|
||||
printf("TEXASR_SPD ");
|
||||
|
||||
if (texasr & TEXASR_HV)
|
||||
printf("TEXASR_HV ");
|
||||
|
||||
if (texasr & TEXASR_PR)
|
||||
printf("TEXASR_PR ");
|
||||
|
||||
if (texasr & TEXASR_FS)
|
||||
printf("TEXASR_FS ");
|
||||
|
||||
if (texasr & TEXASR_TE)
|
||||
printf("TEXASR_TE ");
|
||||
|
||||
if (texasr & TEXASR_ROT)
|
||||
printf("TEXASR_ROT ");
|
||||
|
||||
printf("TFIAR :%lx\n", get_tfiar());
|
||||
}
|
||||
|
||||
void store_gpr(unsigned long *addr);
|
||||
void store_fpr(float *addr);
|
||||
Loading…
Reference in New Issue