mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 03:59:52 +00:00
854e67fea6
When running certain HMP commands ("info registers", "info cpustats",
"info tlb", "nmi", "memsave" or dumping virtual memory) with the "none"
machine, QEMU crashes with a segmentation fault. This happens because the
"none" machine does not have any CPUs by default, but these HMP commands
did not check for a valid CPU pointer yet. Add such checks now, so we get
an error message about the missing CPU instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1484309555-1935-1-git-send-email-thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
164 lines
6.4 KiB
C
164 lines
6.4 KiB
C
/*
|
|
* QEMU monitor
|
|
*
|
|
* Copyright (c) 2003-2004 Fabrice Bellard
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
#include "qemu/osdep.h"
|
|
#include "cpu.h"
|
|
#include "monitor/monitor.h"
|
|
#include "monitor/hmp-target.h"
|
|
#include "hmp.h"
|
|
|
|
|
|
void hmp_info_tlb(Monitor *mon, const QDict *qdict)
|
|
{
|
|
CPUArchState *env1 = mon_get_cpu_env();
|
|
|
|
if (!env1) {
|
|
monitor_printf(mon, "No CPU available\n");
|
|
return;
|
|
}
|
|
dump_mmu((FILE*)mon, (fprintf_function)monitor_printf, env1);
|
|
}
|
|
|
|
#ifndef TARGET_SPARC64
|
|
static target_long monitor_get_psr (const struct MonitorDef *md, int val)
|
|
{
|
|
CPUArchState *env = mon_get_cpu_env();
|
|
|
|
return cpu_get_psr(env);
|
|
}
|
|
#endif
|
|
|
|
static target_long monitor_get_reg(const struct MonitorDef *md, int val)
|
|
{
|
|
CPUArchState *env = mon_get_cpu_env();
|
|
return env->regwptr[val];
|
|
}
|
|
|
|
const MonitorDef monitor_defs[] = {
|
|
{ "g0", offsetof(CPUSPARCState, gregs[0]) },
|
|
{ "g1", offsetof(CPUSPARCState, gregs[1]) },
|
|
{ "g2", offsetof(CPUSPARCState, gregs[2]) },
|
|
{ "g3", offsetof(CPUSPARCState, gregs[3]) },
|
|
{ "g4", offsetof(CPUSPARCState, gregs[4]) },
|
|
{ "g5", offsetof(CPUSPARCState, gregs[5]) },
|
|
{ "g6", offsetof(CPUSPARCState, gregs[6]) },
|
|
{ "g7", offsetof(CPUSPARCState, gregs[7]) },
|
|
{ "o0", 0, monitor_get_reg },
|
|
{ "o1", 1, monitor_get_reg },
|
|
{ "o2", 2, monitor_get_reg },
|
|
{ "o3", 3, monitor_get_reg },
|
|
{ "o4", 4, monitor_get_reg },
|
|
{ "o5", 5, monitor_get_reg },
|
|
{ "o6", 6, monitor_get_reg },
|
|
{ "o7", 7, monitor_get_reg },
|
|
{ "l0", 8, monitor_get_reg },
|
|
{ "l1", 9, monitor_get_reg },
|
|
{ "l2", 10, monitor_get_reg },
|
|
{ "l3", 11, monitor_get_reg },
|
|
{ "l4", 12, monitor_get_reg },
|
|
{ "l5", 13, monitor_get_reg },
|
|
{ "l6", 14, monitor_get_reg },
|
|
{ "l7", 15, monitor_get_reg },
|
|
{ "i0", 16, monitor_get_reg },
|
|
{ "i1", 17, monitor_get_reg },
|
|
{ "i2", 18, monitor_get_reg },
|
|
{ "i3", 19, monitor_get_reg },
|
|
{ "i4", 20, monitor_get_reg },
|
|
{ "i5", 21, monitor_get_reg },
|
|
{ "i6", 22, monitor_get_reg },
|
|
{ "i7", 23, monitor_get_reg },
|
|
{ "pc", offsetof(CPUSPARCState, pc) },
|
|
{ "npc", offsetof(CPUSPARCState, npc) },
|
|
{ "y", offsetof(CPUSPARCState, y) },
|
|
#ifndef TARGET_SPARC64
|
|
{ "psr", 0, &monitor_get_psr, },
|
|
{ "wim", offsetof(CPUSPARCState, wim) },
|
|
#endif
|
|
{ "tbr", offsetof(CPUSPARCState, tbr) },
|
|
{ "fsr", offsetof(CPUSPARCState, fsr) },
|
|
{ "f0", offsetof(CPUSPARCState, fpr[0].l.upper) },
|
|
{ "f1", offsetof(CPUSPARCState, fpr[0].l.lower) },
|
|
{ "f2", offsetof(CPUSPARCState, fpr[1].l.upper) },
|
|
{ "f3", offsetof(CPUSPARCState, fpr[1].l.lower) },
|
|
{ "f4", offsetof(CPUSPARCState, fpr[2].l.upper) },
|
|
{ "f5", offsetof(CPUSPARCState, fpr[2].l.lower) },
|
|
{ "f6", offsetof(CPUSPARCState, fpr[3].l.upper) },
|
|
{ "f7", offsetof(CPUSPARCState, fpr[3].l.lower) },
|
|
{ "f8", offsetof(CPUSPARCState, fpr[4].l.upper) },
|
|
{ "f9", offsetof(CPUSPARCState, fpr[4].l.lower) },
|
|
{ "f10", offsetof(CPUSPARCState, fpr[5].l.upper) },
|
|
{ "f11", offsetof(CPUSPARCState, fpr[5].l.lower) },
|
|
{ "f12", offsetof(CPUSPARCState, fpr[6].l.upper) },
|
|
{ "f13", offsetof(CPUSPARCState, fpr[6].l.lower) },
|
|
{ "f14", offsetof(CPUSPARCState, fpr[7].l.upper) },
|
|
{ "f15", offsetof(CPUSPARCState, fpr[7].l.lower) },
|
|
{ "f16", offsetof(CPUSPARCState, fpr[8].l.upper) },
|
|
{ "f17", offsetof(CPUSPARCState, fpr[8].l.lower) },
|
|
{ "f18", offsetof(CPUSPARCState, fpr[9].l.upper) },
|
|
{ "f19", offsetof(CPUSPARCState, fpr[9].l.lower) },
|
|
{ "f20", offsetof(CPUSPARCState, fpr[10].l.upper) },
|
|
{ "f21", offsetof(CPUSPARCState, fpr[10].l.lower) },
|
|
{ "f22", offsetof(CPUSPARCState, fpr[11].l.upper) },
|
|
{ "f23", offsetof(CPUSPARCState, fpr[11].l.lower) },
|
|
{ "f24", offsetof(CPUSPARCState, fpr[12].l.upper) },
|
|
{ "f25", offsetof(CPUSPARCState, fpr[12].l.lower) },
|
|
{ "f26", offsetof(CPUSPARCState, fpr[13].l.upper) },
|
|
{ "f27", offsetof(CPUSPARCState, fpr[13].l.lower) },
|
|
{ "f28", offsetof(CPUSPARCState, fpr[14].l.upper) },
|
|
{ "f29", offsetof(CPUSPARCState, fpr[14].l.lower) },
|
|
{ "f30", offsetof(CPUSPARCState, fpr[15].l.upper) },
|
|
{ "f31", offsetof(CPUSPARCState, fpr[15].l.lower) },
|
|
#ifdef TARGET_SPARC64
|
|
{ "f32", offsetof(CPUSPARCState, fpr[16]) },
|
|
{ "f34", offsetof(CPUSPARCState, fpr[17]) },
|
|
{ "f36", offsetof(CPUSPARCState, fpr[18]) },
|
|
{ "f38", offsetof(CPUSPARCState, fpr[19]) },
|
|
{ "f40", offsetof(CPUSPARCState, fpr[20]) },
|
|
{ "f42", offsetof(CPUSPARCState, fpr[21]) },
|
|
{ "f44", offsetof(CPUSPARCState, fpr[22]) },
|
|
{ "f46", offsetof(CPUSPARCState, fpr[23]) },
|
|
{ "f48", offsetof(CPUSPARCState, fpr[24]) },
|
|
{ "f50", offsetof(CPUSPARCState, fpr[25]) },
|
|
{ "f52", offsetof(CPUSPARCState, fpr[26]) },
|
|
{ "f54", offsetof(CPUSPARCState, fpr[27]) },
|
|
{ "f56", offsetof(CPUSPARCState, fpr[28]) },
|
|
{ "f58", offsetof(CPUSPARCState, fpr[29]) },
|
|
{ "f60", offsetof(CPUSPARCState, fpr[30]) },
|
|
{ "f62", offsetof(CPUSPARCState, fpr[31]) },
|
|
{ "asi", offsetof(CPUSPARCState, asi) },
|
|
{ "pstate", offsetof(CPUSPARCState, pstate) },
|
|
{ "cansave", offsetof(CPUSPARCState, cansave) },
|
|
{ "canrestore", offsetof(CPUSPARCState, canrestore) },
|
|
{ "otherwin", offsetof(CPUSPARCState, otherwin) },
|
|
{ "wstate", offsetof(CPUSPARCState, wstate) },
|
|
{ "cleanwin", offsetof(CPUSPARCState, cleanwin) },
|
|
{ "fprs", offsetof(CPUSPARCState, fprs) },
|
|
#endif
|
|
{ NULL },
|
|
};
|
|
|
|
const MonitorDef *target_monitor_defs(void)
|
|
{
|
|
return monitor_defs;
|
|
}
|