2874c5fd28
Based on 1 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 as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
114 lines
2.1 KiB
C
114 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Ptrace test for VMX/VSX registers
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*
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* Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
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*/
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#include "ptrace.h"
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#include "ptrace-vsx.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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unsigned long fp_load[VEC_MAX];
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unsigned long fp_load_new[VEC_MAX];
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unsigned long fp_store[VEC_MAX];
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void vsx(void)
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{
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int ret;
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cptr = (int *)shmat(shm_id, NULL, 0);
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loadvsx(fp_load, 0);
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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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storevsx(fp_store, 0);
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ret = compare_vsx_vmx(fp_store, fp_load_new);
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if (ret)
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exit(1);
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exit(0);
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}
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int trace_vsx(pid_t child)
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{
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unsigned long vsx[VSX_MAX];
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unsigned long vmx[VMX_MAX + 2][2];
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FAIL_IF(start_trace(child));
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FAIL_IF(show_vsx(child, vsx));
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FAIL_IF(validate_vsx(vsx, fp_load));
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FAIL_IF(show_vmx(child, vmx));
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FAIL_IF(validate_vmx(vmx, fp_load));
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memset(vsx, 0, sizeof(vsx));
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memset(vmx, 0, sizeof(vmx));
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load_vsx_vmx(fp_load_new, vsx, vmx);
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FAIL_IF(write_vsx(child, vsx));
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FAIL_IF(write_vmx(child, vmx));
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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_vsx(void)
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{
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pid_t pid;
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int ret, status, i;
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shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
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for (i = 0; i < VEC_MAX; i++)
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fp_load[i] = i + rand();
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for (i = 0; i < VEC_MAX; i++)
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fp_load_new[i] = i + 2 * rand();
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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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vsx();
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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_vsx(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_vsx, "ptrace_vsx");
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}
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