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target-ppc: Move cpu_gdb_{read,write}_register()

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Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-07-07 12:26:33 +02:00
parent f20f9df06e
commit 0980bfabbc
2 changed files with 123 additions and 100 deletions
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101
gdbstub.c
View file

@ -524,112 +524,13 @@ static int put_packet(GDBState *s, const char *buf)
#elif defined (TARGET_PPC)
/* Old gdb always expects FP registers. Newer (xml-aware) gdb only
expects whatever the target description contains. Due to a
historical mishap the FP registers appear in between core integer
regs and PC, MSR, CR, and so forth. We hack round this by giving the
FP regs zero size when talking to a newer gdb. */
#if defined (TARGET_PPC64)
#define GDB_CORE_XML "power64-core.xml"
#else
#define GDB_CORE_XML "power-core.xml"
#endif
static int cpu_gdb_read_register(CPUPPCState *env, uint8_t *mem_buf, int n)
{
if (n < 32) {
/* gprs */
GET_REGL(env->gpr[n]);
} else if (n < 64) {
/* fprs */
if (gdb_has_xml) {
return 0;
}
stfq_p(mem_buf, env->fpr[n-32]);
return 8;
} else {
switch (n) {
case 64:
GET_REGL(env->nip);
case 65:
GET_REGL(env->msr);
case 66:
{
uint32_t cr = 0;
int i;
for (i = 0; i < 8; i++) {
cr |= env->crf[i] << (32 - ((i + 1) * 4));
}
GET_REG32(cr);
}
case 67:
GET_REGL(env->lr);
case 68:
GET_REGL(env->ctr);
case 69:
GET_REGL(env->xer);
case 70:
{
if (gdb_has_xml) {
return 0;
}
GET_REG32(env->fpscr);
}
}
}
return 0;
}
static int cpu_gdb_write_register(CPUPPCState *env, uint8_t *mem_buf, int n)
{
if (n < 32) {
/* gprs */
env->gpr[n] = ldtul_p(mem_buf);
return sizeof(target_ulong);
} else if (n < 64) {
/* fprs */
if (gdb_has_xml) {
return 0;
}
env->fpr[n-32] = ldfq_p(mem_buf);
return 8;
} else {
switch (n) {
case 64:
env->nip = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 65:
ppc_store_msr(env, ldtul_p(mem_buf));
return sizeof(target_ulong);
case 66:
{
uint32_t cr = ldl_p(mem_buf);
int i;
for (i = 0; i < 8; i++) {
env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF;
}
return 4;
}
case 67:
env->lr = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 68:
env->ctr = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 69:
env->xer = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 70:
/* fpscr */
if (gdb_has_xml) {
return 0;
}
store_fpscr(env, ldtul_p(mem_buf), 0xffffffff);
return sizeof(target_ulong);
}
}
return 0;
}
#include "target-ppc/gdbstub.c"
#elif defined (TARGET_SPARC)

122
target-ppc/gdbstub.c Normal file
View file

@ -0,0 +1,122 @@
/*
* PowerPC gdb server stub
*
* Copyright (c) 2003-2005 Fabrice Bellard
* Copyright (c) 2013 SUSE LINUX Products GmbH
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/* Old gdb always expects FP registers. Newer (xml-aware) gdb only
* expects whatever the target description contains. Due to a
* historical mishap the FP registers appear in between core integer
* regs and PC, MSR, CR, and so forth. We hack round this by giving the
* FP regs zero size when talking to a newer gdb.
*/
static int cpu_gdb_read_register(CPUPPCState *env, uint8_t *mem_buf, int n)
{
if (n < 32) {
/* gprs */
GET_REGL(env->gpr[n]);
} else if (n < 64) {
/* fprs */
if (gdb_has_xml) {
return 0;
}
stfq_p(mem_buf, env->fpr[n-32]);
return 8;
} else {
switch (n) {
case 64:
GET_REGL(env->nip);
case 65:
GET_REGL(env->msr);
case 66:
{
uint32_t cr = 0;
int i;
for (i = 0; i < 8; i++) {
cr |= env->crf[i] << (32 - ((i + 1) * 4));
}
GET_REG32(cr);
}
case 67:
GET_REGL(env->lr);
case 68:
GET_REGL(env->ctr);
case 69:
GET_REGL(env->xer);
case 70:
{
if (gdb_has_xml) {
return 0;
}
GET_REG32(env->fpscr);
}
}
}
return 0;
}
static int cpu_gdb_write_register(CPUPPCState *env, uint8_t *mem_buf, int n)
{
if (n < 32) {
/* gprs */
env->gpr[n] = ldtul_p(mem_buf);
return sizeof(target_ulong);
} else if (n < 64) {
/* fprs */
if (gdb_has_xml) {
return 0;
}
env->fpr[n-32] = ldfq_p(mem_buf);
return 8;
} else {
switch (n) {
case 64:
env->nip = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 65:
ppc_store_msr(env, ldtul_p(mem_buf));
return sizeof(target_ulong);
case 66:
{
uint32_t cr = ldl_p(mem_buf);
int i;
for (i = 0; i < 8; i++) {
env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF;
}
return 4;
}
case 67:
env->lr = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 68:
env->ctr = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 69:
env->xer = ldtul_p(mem_buf);
return sizeof(target_ulong);
case 70:
/* fpscr */
if (gdb_has_xml) {
return 0;
}
store_fpscr(env, ldtul_p(mem_buf), 0xffffffff);
return sizeof(target_ulong);
}
}
return 0;
}