Commit f666ad41 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Michael Ellerman
Browse files

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: default avatarAnshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: default avatarSimon Guo <wei.guo.simon@gmail.com>
[mpe: Add #defines for the new note types when headers don't define them]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 15ec3997

tools/testing/selftests/powerpc/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -26,7 +26,8 @@ SUB_DIRS = alignment \ 
	   syscalls		\

	   tm			\

	   vphn         \

	   math

	   math		\

	   ptrace



endif

tools/testing/selftests/powerpc/include/reg.h

+61 −0
Original line number Diff line number Diff line
@@ -81,4 +81,65 @@ 
#define STXVD2X(xs, ra, rb)	.long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))

#define LXVD2X(xs, ra, rb)	.long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))



#define ASM_LOAD_GPR_IMMED(_asm_symbol_name_immed) \

		"li 14, %[" #_asm_symbol_name_immed "];" \

		"li 15, %[" #_asm_symbol_name_immed "];" \

		"li 16, %[" #_asm_symbol_name_immed "];" \

		"li 17, %[" #_asm_symbol_name_immed "];" \

		"li 18, %[" #_asm_symbol_name_immed "];" \

		"li 19, %[" #_asm_symbol_name_immed "];" \

		"li 20, %[" #_asm_symbol_name_immed "];" \

		"li 21, %[" #_asm_symbol_name_immed "];" \

		"li 22, %[" #_asm_symbol_name_immed "];" \

		"li 23, %[" #_asm_symbol_name_immed "];" \

		"li 24, %[" #_asm_symbol_name_immed "];" \

		"li 25, %[" #_asm_symbol_name_immed "];" \

		"li 26, %[" #_asm_symbol_name_immed "];" \

		"li 27, %[" #_asm_symbol_name_immed "];" \

		"li 28, %[" #_asm_symbol_name_immed "];" \

		"li 29, %[" #_asm_symbol_name_immed "];" \

		"li 30, %[" #_asm_symbol_name_immed "];" \

		"li 31, %[" #_asm_symbol_name_immed "];"



#define ASM_LOAD_FPR_SINGLE_PRECISION(_asm_symbol_name_addr) \

		"lfs 0, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 1, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 2, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 3, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 4, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 5, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 6, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 7, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 8, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 9, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 10, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 11, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 12, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 13, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 14, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 15, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 16, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 17, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 18, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 19, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 20, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 21, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 22, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 23, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 24, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 25, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 26, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 27, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 28, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 29, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 30, 0(%[" #_asm_symbol_name_addr "]);" \

		"lfs 31, 0(%[" #_asm_symbol_name_addr "]);"



#ifndef __ASSEMBLER__

void store_gpr(unsigned long *addr);

void load_gpr(unsigned long *addr);

void load_fpr_single_precision(float *addr);

void store_fpr_single_precision(float *addr);

#endif /* end of __ASSEMBLER__ */



#endif /* _SELFTESTS_POWERPC_REG_H */

tools/testing/selftests/powerpc/lib/reg.S

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+132 −0
Original line number Diff line number Diff line 
/*

 * test helper assembly functions

 *

 * Copyright (C) 2016 Simon Guo, IBM Corporation.

 *

 * This program is free software; you can redistribute it and/or

 * 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 <ppc-asm.h>

#include "reg.h"





/* Non volatile GPR - unsigned long buf[18] */

FUNC_START(load_gpr)

	ld	14, 0*8(3)

	ld	15, 1*8(3)

	ld	16, 2*8(3)

	ld	17, 3*8(3)

	ld	18, 4*8(3)

	ld	19, 5*8(3)

	ld	20, 6*8(3)

	ld	21, 7*8(3)

	ld	22, 8*8(3)

	ld	23, 9*8(3)

	ld	24, 10*8(3)

	ld	25, 11*8(3)

	ld	26, 12*8(3)

	ld	27, 13*8(3)

	ld	28, 14*8(3)

	ld	29, 15*8(3)

	ld	30, 16*8(3)

	ld	31, 17*8(3)

	blr

FUNC_END(load_gpr)



FUNC_START(store_gpr)

	std	14, 0*8(3)

	std	15, 1*8(3)

	std	16, 2*8(3)

	std	17, 3*8(3)

	std	18, 4*8(3)

	std	19, 5*8(3)

	std	20, 6*8(3)

	std	21, 7*8(3)

	std	22, 8*8(3)

	std	23, 9*8(3)

	std	24, 10*8(3)

	std	25, 11*8(3)

	std	26, 12*8(3)

	std	27, 13*8(3)

	std	28, 14*8(3)

	std	29, 15*8(3)

	std	30, 16*8(3)

	std	31, 17*8(3)

	blr

FUNC_END(store_gpr)



/* Single Precision Float - float buf[32] */

FUNC_START(load_fpr_single_precision)

	lfs 0, 0*4(3)

	lfs 1, 1*4(3)

	lfs 2, 2*4(3)

	lfs 3, 3*4(3)

	lfs 4, 4*4(3)

	lfs 5, 5*4(3)

	lfs 6, 6*4(3)

	lfs 7, 7*4(3)

	lfs 8, 8*4(3)

	lfs 9, 9*4(3)

	lfs 10, 10*4(3)

	lfs 11, 11*4(3)

	lfs 12, 12*4(3)

	lfs 13, 13*4(3)

	lfs 14, 14*4(3)

	lfs 15, 15*4(3)

	lfs 16, 16*4(3)

	lfs 17, 17*4(3)

	lfs 18, 18*4(3)

	lfs 19, 19*4(3)

	lfs 20, 20*4(3)

	lfs 21, 21*4(3)

	lfs 22, 22*4(3)

	lfs 23, 23*4(3)

	lfs 24, 24*4(3)

	lfs 25, 25*4(3)

	lfs 26, 26*4(3)

	lfs 27, 27*4(3)

	lfs 28, 28*4(3)

	lfs 29, 29*4(3)

	lfs 30, 30*4(3)

	lfs 31, 31*4(3)

	blr

FUNC_END(load_fpr_single_precision)



/* Single Precision Float - float buf[32] */

FUNC_START(store_fpr_single_precision)

	stfs 0, 0*4(3)

	stfs 1, 1*4(3)

	stfs 2, 2*4(3)

	stfs 3, 3*4(3)

	stfs 4, 4*4(3)

	stfs 5, 5*4(3)

	stfs 6, 6*4(3)

	stfs 7, 7*4(3)

	stfs 8, 8*4(3)

	stfs 9, 9*4(3)

	stfs 10, 10*4(3)

	stfs 11, 11*4(3)

	stfs 12, 12*4(3)

	stfs 13, 13*4(3)

	stfs 14, 14*4(3)

	stfs 15, 15*4(3)

	stfs 16, 16*4(3)

	stfs 17, 17*4(3)

	stfs 18, 18*4(3)

	stfs 19, 19*4(3)

	stfs 20, 20*4(3)

	stfs 21, 21*4(3)

	stfs 22, 22*4(3)

	stfs 23, 23*4(3)

	stfs 24, 24*4(3)

	stfs 25, 25*4(3)

	stfs 26, 26*4(3)

	stfs 27, 27*4(3)

	stfs 28, 28*4(3)

	stfs 29, 29*4(3)

	stfs 30, 30*4(3)

	stfs 31, 31*4(3)

	blr

FUNC_END(store_fpr_single_precision)

tools/testing/selftests/powerpc/ptrace/.gitignore

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ptrace-gpr
 
 No newline at end of file

tools/testing/selftests/powerpc/ptrace/Makefile

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TEST_PROGS := ptrace-gpr



include ../../lib.mk



all: $(TEST_PROGS)



CFLAGS += -m64 -I../../../../../usr/include



$(TEST_PROGS): ../harness.c ../utils.c ../lib/reg.S ptrace.h



clean:

	rm -f $(TEST_PROGS) *.o