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Current Path: /usr/src/sys/powerpc/powerpc

📁 ..
📄 altivec.c(4.74 KB)
📄 autoconf.c(2.69 KB)
📄 bus_machdep.c(22.3 KB)
📄 busdma_machdep.c(31.78 KB)
📄 clock.c(8.72 KB)
📄 copyinout.c(15.08 KB)
📄 cpu.c(23.74 KB)
📄 cpu_subr64.S(2.99 KB)
📄 db_disasm.c(31.78 KB)
📄 db_hwwatch.c(1.71 KB)
📄 db_interface.c(1.78 KB)
📄 db_trace.c(8.56 KB)
📄 dump_machdep.c(1.63 KB)
📄 elf32_machdep.c(11.71 KB)
📄 elf64_machdep.c(12 KB)
📄 elf_common.c(4.21 KB)
📄 exec_machdep.c(29.55 KB)
📄 fpu.c(6.47 KB)
📄 gdb_machdep.c(3.5 KB)
📄 genassym.c(10.78 KB)
📄 in_cksum.c(6.64 KB)
📄 interrupt.c(3.9 KB)
📄 intr_machdep.c(15.53 KB)
📄 iommu_if.m(1.74 KB)
📄 machdep.c(21.72 KB)
📄 mem.c(8.4 KB)
📄 minidump_machdep.c(9.09 KB)
📄 mp_machdep.c(8.81 KB)
📄 nexus.c(7.06 KB)
📄 openpic.c(11.35 KB)
📄 pic_if.m(2.45 KB)
📄 platform.c(9.15 KB)
📄 platform_if.m(6.15 KB)
📄 pmap_dispatch.c(8.92 KB)
📄 ptrace_machdep.c(3.58 KB)
📄 sc_machdep.c(2.21 KB)
📄 setjmp.S(2.45 KB)
📄 sigcode32.S(2.4 KB)
📄 sigcode64.S(2.94 KB)
📄 stack_machdep.c(3.1 KB)
📄 support.S(11.06 KB)
📄 swtch32.S(7.31 KB)
📄 swtch64.S(10.59 KB)
📄 syncicache.c(2.51 KB)
📄 sys_machdep.c(1.73 KB)
📄 trap.c(25.06 KB)
📄 uio_machdep.c(4.04 KB)
📄 uma_machdep.c(2.89 KB)
📄 vm_machdep.c(7.5 KB)

Editing: ptrace_machdep.c

/*-
 * Copyright (c) 2014 Justin Hibbits
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/ptrace.h>
#include <sys/sysent.h>
#include <machine/altivec.h>
#include <machine/fpu.h>
#include <machine/cpu.h>
#include <machine/md_var.h>
#include <machine/pcb.h>

#ifdef __SPE__
#define	PPC_FEATURE_VECTOR	PPC_FEATURE_HAS_SPE
#else
#define	PPC_FEATURE_VECTOR	PPC_FEATURE_HAS_ALTIVEC
#endif

int
cpu_ptrace(struct thread *td, int req, void *addr, int data)
{
	int error;
	struct pcb *pcb;
	struct vec vec;
	uint64_t vsr[32];
	uint64_t *vsr_dw1;
	int vsr_idx;

pcb = td->td_pcb;

bzero(&vec, sizeof(vec));
	bzero(vsr, sizeof(vsr));

error = EINVAL;
	switch (req) {
	case PT_GETVRREGS:
		if (!(cpu_features & PPC_FEATURE_VECTOR))
			break;

if (pcb->pcb_flags & PCB_VEC) {
			save_vec_nodrop(td);
			memcpy(&vec, &pcb->pcb_vec, sizeof(vec));
		}
		error = copyout(&vec, addr, sizeof(vec));
		break;
	case PT_SETVRREGS:
		if (!(cpu_features & PPC_FEATURE_VECTOR))
			break;
		error = copyin(addr, &vec, sizeof(vec));
		if (error == 0) {
			pcb->pcb_flags |= PCB_VEC;
			memcpy(&pcb->pcb_vec, &vec, sizeof(vec));
		}
		break;
	case PT_GETVSRREGS:
		if (!(cpu_features & PPC_FEATURE_HAS_VSX))
			break;

if (pcb->pcb_flags & PCB_VSX) {
			save_fpu_nodrop(td);

/*
			 * Doubleword 0 of VSR0-VSR31 overlap with FPR0-FPR31 and
			 * VSR32-VSR63 overlap with VR0-VR31, so we only copy
			 * the non-overlapping data, which is doubleword 1 of VSR0-VSR31.
			 */
			for (vsr_idx = 0; vsr_idx < nitems(vsr); vsr_idx++) {
				vsr_dw1 = (uint64_t *)&pcb->pcb_fpu.fpr[vsr_idx].vsr[2];
				vsr[vsr_idx] = *vsr_dw1;
			}
		}
		error = copyout(&vsr, addr, sizeof(vsr));
		break;
	case PT_SETVSRREGS:
		if (!(cpu_features & PPC_FEATURE_HAS_VSX))
			break;
		error = copyin(addr, &vsr, sizeof(vsr));
		if (error == 0) {
			pcb->pcb_flags |= PCB_VSX;

default:
		break;
	}

return (error);
}

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Editing: ptrace_machdep.c

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