/*
* gdb server stub
- *
+ *
* Copyright (c) 2003-2005 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
#include "qemu.h"
#else
-#include "vl.h"
+#include "qemu-common.h"
+#include "qemu-char.h"
+#include "sysemu.h"
+#include "gdbstub.h"
#endif
#include "qemu_socket.h"
char line_buf[4096];
int line_buf_index;
int line_csum;
- char last_packet[4100];
+ uint8_t last_packet[4100];
int last_packet_len;
#ifdef CONFIG_USER_ONLY
int fd;
return gdb_syscall_mode == GDB_SYS_ENABLED;
}
+/* Resume execution. */
+static inline void gdb_continue(GDBState *s)
+{
+#ifdef CONFIG_USER_ONLY
+ s->running_state = 1;
+#else
+ vm_start();
+#endif
+}
+
static void put_buffer(GDBState *s, const uint8_t *buf, int len)
{
#ifdef CONFIG_USER_ONLY
static int put_packet(GDBState *s, char *buf)
{
int len, csum, i;
- char *p;
+ uint8_t *p;
#ifdef DEBUG_GDB
printf("reply='%s'\n", buf);
*(p++) = tohex((csum) & 0xf);
s->last_packet_len = p - s->last_packet;
- put_buffer(s, s->last_packet, s->last_packet_len);
+ put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len);
#ifdef CONFIG_USER_ONLY
i = get_char(s);
static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
{
- uint32_t *registers = (uint32_t *)mem_buf;
int i, fpus;
+ uint32_t *registers = (uint32_t *)mem_buf;
+
+#ifdef TARGET_X86_64
+ /* This corresponds with amd64_register_info[] in gdb/amd64-tdep.c */
+ uint64_t *registers64 = (uint64_t *)mem_buf;
+
+ if (env->hflags & HF_CS64_MASK) {
+ registers64[0] = tswap64(env->regs[R_EAX]);
+ registers64[1] = tswap64(env->regs[R_EBX]);
+ registers64[2] = tswap64(env->regs[R_ECX]);
+ registers64[3] = tswap64(env->regs[R_EDX]);
+ registers64[4] = tswap64(env->regs[R_ESI]);
+ registers64[5] = tswap64(env->regs[R_EDI]);
+ registers64[6] = tswap64(env->regs[R_EBP]);
+ registers64[7] = tswap64(env->regs[R_ESP]);
+ for(i = 8; i < 16; i++) {
+ registers64[i] = tswap64(env->regs[i]);
+ }
+ registers64[16] = tswap64(env->eip);
+
+ registers = (uint32_t *)®isters64[17];
+ registers[0] = tswap32(env->eflags);
+ registers[1] = tswap32(env->segs[R_CS].selector);
+ registers[2] = tswap32(env->segs[R_SS].selector);
+ registers[3] = tswap32(env->segs[R_DS].selector);
+ registers[4] = tswap32(env->segs[R_ES].selector);
+ registers[5] = tswap32(env->segs[R_FS].selector);
+ registers[6] = tswap32(env->segs[R_GS].selector);
+ /* XXX: convert floats */
+ for(i = 0; i < 8; i++) {
+ memcpy(mem_buf + 16 * 8 + 7 * 4 + i * 10, &env->fpregs[i], 10);
+ }
+ registers[27] = tswap32(env->fpuc); /* fctrl */
+ fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+ registers[28] = tswap32(fpus); /* fstat */
+ registers[29] = 0; /* ftag */
+ registers[30] = 0; /* fiseg */
+ registers[31] = 0; /* fioff */
+ registers[32] = 0; /* foseg */
+ registers[33] = 0; /* fooff */
+ registers[34] = 0; /* fop */
+ for(i = 0; i < 16; i++) {
+ memcpy(mem_buf + 16 * 8 + 35 * 4 + i * 16, &env->xmm_regs[i], 16);
+ }
+ registers[99] = tswap32(env->mxcsr);
+
+ return 8 * 17 + 4 * 7 + 10 * 8 + 4 * 8 + 16 * 16 + 4;
+ }
+#endif
for(i = 0; i < 8; i++) {
registers[i] = env->regs[i];
registers[41] = 0; /* foseg */
registers[42] = 0; /* fooff */
registers[43] = 0; /* fop */
-
+
for(i = 0; i < 16; i++)
tswapls(®isters[i]);
for(i = 36; i < 44; i++)
}
/* nip, msr, ccr, lnk, ctr, xer, mq */
registers[96] = tswapl(env->nip);
- registers[97] = tswapl(do_load_msr(env));
+ registers[97] = tswapl(env->msr);
tmp = 0;
for (i = 0; i < 8; i++)
tmp |= env->crf[i] << (32 - ((i + 1) * 4));
}
/* nip, msr, ccr, lnk, ctr, xer, mq */
env->nip = tswapl(registers[96]);
- do_store_msr(env, tswapl(registers[97]));
+ ppc_store_msr(env, tswapl(registers[97]));
registers[98] = tswapl(registers[98]);
for (i = 0; i < 8; i++)
env->crf[i] = (registers[98] >> (32 - ((i + 1) * 4))) & 0xF;
}
registers[64] = tswapl(env->pc);
registers[65] = tswapl(env->npc);
- registers[66] = tswapl(env->tstate[env->tl]);
+ registers[66] = tswapl(((uint64_t)GET_CCR(env) << 32) |
+ ((env->asi & 0xff) << 24) |
+ ((env->pstate & 0xfff) << 8) |
+ GET_CWP64(env));
registers[67] = tswapl(env->fsr);
registers[68] = tswapl(env->fprs);
registers[69] = tswapl(env->y);
}
env->pc = tswapl(registers[64]);
env->npc = tswapl(registers[65]);
- env->tstate[env->tl] = tswapl(registers[66]);
+ {
+ uint64_t tmp = tswapl(registers[66]);
+
+ PUT_CCR(env, tmp >> 32);
+ env->asi = (tmp >> 24) & 0xff;
+ env->pstate = (tmp >> 8) & 0xfff;
+ PUT_CWP64(env, tmp & 0xff);
+ }
env->fsr = tswapl(registers[67]);
env->fprs = tswapl(registers[68]);
env->y = tswapl(registers[69]);
/* F0-F7. The 68881/68040 have 12-bit extended precision registers.
ColdFire has 8-bit double precision registers. */
for (i = 0; i < 8; i++) {
- u.l.upper = tswap32(*(uint32_t *)ptr);
+ u.l.upper = tswap32(*(uint32_t *)ptr);
u.l.lower = tswap32(*(uint32_t *)ptr);
env->fregs[i] = u.d;
}
ptr = mem_buf;
for (i = 0; i < 32; i++)
{
- *(uint32_t *)ptr = tswapl(env->gpr[i]);
- ptr += 4;
+ *(target_ulong *)ptr = tswapl(env->gpr[env->current_tc][i]);
+ ptr += sizeof(target_ulong);
}
- *(uint32_t *)ptr = tswapl(env->CP0_Status);
- ptr += 4;
+ *(target_ulong *)ptr = (int32_t)tswap32(env->CP0_Status);
+ ptr += sizeof(target_ulong);
- *(uint32_t *)ptr = tswapl(env->LO);
- ptr += 4;
+ *(target_ulong *)ptr = tswapl(env->LO[env->current_tc][0]);
+ ptr += sizeof(target_ulong);
- *(uint32_t *)ptr = tswapl(env->HI);
- ptr += 4;
+ *(target_ulong *)ptr = tswapl(env->HI[env->current_tc][0]);
+ ptr += sizeof(target_ulong);
- *(uint32_t *)ptr = tswapl(env->CP0_BadVAddr);
- ptr += 4;
+ *(target_ulong *)ptr = tswapl(env->CP0_BadVAddr);
+ ptr += sizeof(target_ulong);
- *(uint32_t *)ptr = tswapl(env->CP0_Cause);
- ptr += 4;
+ *(target_ulong *)ptr = (int32_t)tswap32(env->CP0_Cause);
+ ptr += sizeof(target_ulong);
- *(uint32_t *)ptr = tswapl(env->PC);
- ptr += 4;
+ *(target_ulong *)ptr = tswapl(env->PC[env->current_tc]);
+ ptr += sizeof(target_ulong);
if (env->CP0_Config1 & (1 << CP0C1_FP))
{
for (i = 0; i < 32; i++)
{
- *(uint32_t *)ptr = tswapl(FPR_W (env, i));
- ptr += 4;
+ if (env->CP0_Status & (1 << CP0St_FR))
+ *(target_ulong *)ptr = tswapl(env->fpu->fpr[i].d);
+ else
+ *(target_ulong *)ptr = tswap32(env->fpu->fpr[i].w[FP_ENDIAN_IDX]);
+ ptr += sizeof(target_ulong);
}
- *(uint32_t *)ptr = tswapl(env->fcr31);
- ptr += 4;
+ *(target_ulong *)ptr = (int32_t)tswap32(env->fpu->fcr31);
+ ptr += sizeof(target_ulong);
- *(uint32_t *)ptr = tswapl(env->fcr0);
- ptr += 4;
+ *(target_ulong *)ptr = (int32_t)tswap32(env->fpu->fcr0);
+ ptr += sizeof(target_ulong);
}
- /* 32 FP registers, fsr, fir, fp. Not yet implemented. */
- /* what's 'fp' mean here? */
+ /* "fp", pseudo frame pointer. Not yet implemented in gdb. */
+ *(target_ulong *)ptr = 0;
+ ptr += sizeof(target_ulong);
+
+ /* Registers for embedded use, we just pad them. */
+ for (i = 0; i < 16; i++)
+ {
+ *(target_ulong *)ptr = 0;
+ ptr += sizeof(target_ulong);
+ }
+
+ /* Processor ID. */
+ *(target_ulong *)ptr = (int32_t)tswap32(env->CP0_PRid);
+ ptr += sizeof(target_ulong);
return ptr - mem_buf;
}
float_round_down
};
#define RESTORE_ROUNDING_MODE \
- set_float_rounding_mode(ieee_rm[env->fcr31 & 3], &env->fp_status)
+ set_float_rounding_mode(ieee_rm[env->fpu->fcr31 & 3], &env->fpu->fp_status)
static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
{
ptr = mem_buf;
for (i = 0; i < 32; i++)
{
- env->gpr[i] = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->gpr[env->current_tc][i] = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
}
- env->CP0_Status = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->CP0_Status = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
- env->LO = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->LO[env->current_tc][0] = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
- env->HI = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->HI[env->current_tc][0] = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
- env->CP0_BadVAddr = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->CP0_BadVAddr = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
- env->CP0_Cause = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->CP0_Cause = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
- env->PC = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ env->PC[env->current_tc] = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
if (env->CP0_Config1 & (1 << CP0C1_FP))
{
for (i = 0; i < 32; i++)
{
- FPR_W (env, i) = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ if (env->CP0_Status & (1 << CP0St_FR))
+ env->fpu->fpr[i].d = tswapl(*(target_ulong *)ptr);
+ else
+ env->fpu->fpr[i].w[FP_ENDIAN_IDX] = tswapl(*(target_ulong *)ptr);
+ ptr += sizeof(target_ulong);
}
- env->fcr31 = tswapl(*(uint32_t *)ptr) & 0x0183FFFF;
- ptr += 4;
+ env->fpu->fcr31 = tswapl(*(target_ulong *)ptr) & 0xFF83FFFF;
+ ptr += sizeof(target_ulong);
- env->fcr0 = tswapl(*(uint32_t *)ptr);
- ptr += 4;
+ /* The remaining registers are assumed to be read-only. */
/* set rounding mode */
RESTORE_ROUNDING_MODE;
}
}
#elif defined (TARGET_SH4)
+
+/* Hint: Use "set architecture sh4" in GDB to see fpu registers */
+
static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
{
uint32_t *ptr = (uint32_t *)mem_buf;
SAVE (env->mach);
SAVE (env->macl);
SAVE (env->sr);
- SAVE (0); /* TICKS */
- SAVE (0); /* STALLS */
- SAVE (0); /* CYCLES */
- SAVE (0); /* INSTS */
- SAVE (0); /* PLR */
-
+ SAVE (env->fpul);
+ SAVE (env->fpscr);
+ for (i = 0; i < 16; i++)
+ SAVE(env->fregs[i + ((env->fpscr & FPSCR_FR) ? 16 : 0)]);
+ SAVE (env->ssr);
+ SAVE (env->spc);
+ for (i = 0; i < 8; i++) SAVE(env->gregs[i]);
+ for (i = 0; i < 8; i++) SAVE(env->gregs[i + 16]);
return ((uint8_t *)ptr - mem_buf);
}
LOAD (env->mach);
LOAD (env->macl);
LOAD (env->sr);
+ LOAD (env->fpul);
+ LOAD (env->fpscr);
+ for (i = 0; i < 16; i++)
+ LOAD(env->fregs[i + ((env->fpscr & FPSCR_FR) ? 16 : 0)]);
+ LOAD (env->ssr);
+ LOAD (env->spc);
+ for (i = 0; i < 8; i++) LOAD(env->gregs[i]);
+ for (i = 0; i < 8; i++) LOAD(env->gregs[i + 16]);
+}
+#elif defined (TARGET_CRIS)
+
+static int cris_save_32 (unsigned char *d, uint32_t value)
+{
+ *d++ = (value);
+ *d++ = (value >>= 8);
+ *d++ = (value >>= 8);
+ *d++ = (value >>= 8);
+ return 4;
+}
+static int cris_save_16 (unsigned char *d, uint32_t value)
+{
+ *d++ = (value);
+ *d++ = (value >>= 8);
+ return 2;
+}
+static int cris_save_8 (unsigned char *d, uint32_t value)
+{
+ *d++ = (value);
+ return 1;
+}
+
+/* FIXME: this will bug on archs not supporting unaligned word accesses. */
+static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
+{
+ uint8_t *ptr = mem_buf;
+ uint8_t srs;
+ int i;
+
+ for (i = 0; i < 16; i++)
+ ptr += cris_save_32 (ptr, env->regs[i]);
+
+ srs = env->pregs[PR_SRS];
+
+ ptr += cris_save_8 (ptr, env->pregs[0]);
+ ptr += cris_save_8 (ptr, env->pregs[1]);
+ ptr += cris_save_32 (ptr, env->pregs[2]);
+ ptr += cris_save_8 (ptr, srs);
+ ptr += cris_save_16 (ptr, env->pregs[4]);
+
+ for (i = 5; i < 16; i++)
+ ptr += cris_save_32 (ptr, env->pregs[i]);
+
+ ptr += cris_save_32 (ptr, env->pc);
+
+ for (i = 0; i < 16; i++)
+ ptr += cris_save_32 (ptr, env->sregs[srs][i]);
+
+ return ((uint8_t *)ptr - mem_buf);
+}
+
+static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
+{
+ uint32_t *ptr = (uint32_t *)mem_buf;
+ int i;
+
+#define LOAD(x) (x)=*ptr++;
+ for (i = 0; i < 16; i++) LOAD(env->regs[i]);
+ LOAD (env->pc);
}
#else
static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
const char *p;
int ch, reg_size, type;
char buf[4096];
- uint8_t mem_buf[2000];
+ uint8_t mem_buf[4096];
uint32_t *registers;
target_ulong addr, len;
-
+
#ifdef DEBUG_GDB
printf("command='%s'\n", line_buf);
#endif
#elif defined (TARGET_ARM)
env->regs[15] = addr;
#elif defined (TARGET_SH4)
- env->pc = addr;
+ env->pc = addr;
+#elif defined (TARGET_MIPS)
+ env->PC[env->current_tc] = addr;
+#elif defined (TARGET_CRIS)
+ env->pc = addr;
#endif
}
-#ifdef CONFIG_USER_ONLY
- s->running_state = 1;
-#else
- vm_start();
-#endif
+ gdb_continue(s);
return RS_IDLE;
case 's':
if (*p != '\0') {
- addr = strtoul(p, (char **)&p, 16);
+ addr = strtoull(p, (char **)&p, 16);
#if defined(TARGET_I386)
env->eip = addr;
#elif defined (TARGET_PPC)
#elif defined (TARGET_ARM)
env->regs[15] = addr;
#elif defined (TARGET_SH4)
- env->pc = addr;
+ env->pc = addr;
+#elif defined (TARGET_MIPS)
+ env->PC[env->current_tc] = addr;
+#elif defined (TARGET_CRIS)
+ env->pc = addr;
#endif
}
cpu_single_step(env, 1);
-#ifdef CONFIG_USER_ONLY
- s->running_state = 1;
-#else
- vm_start();
-#endif
+ gdb_continue(s);
return RS_IDLE;
case 'F':
{
if (type == 'C') {
put_packet(s, "T02");
} else {
-#ifdef CONFIG_USER_ONLY
- s->running_state = 1;
-#else
- vm_start();
-#endif
+ gdb_continue(s);
}
}
break;
if (strncmp(p, "Offsets", 7) == 0) {
TaskState *ts = env->opaque;
- sprintf(buf, "Text=%x;Data=%x;Bss=%x", ts->info->code_offset,
- ts->info->data_offset, ts->info->data_offset);
+ sprintf(buf,
+ "Text=" TARGET_ABI_FMT_lx ";Data=" TARGET_ABI_FMT_lx
+ ";Bss=" TARGET_ABI_FMT_lx,
+ ts->info->code_offset,
+ ts->info->data_offset,
+ ts->info->data_offset);
put_packet(s, buf);
break;
}
/* Send a gdb syscall request.
This accepts limited printf-style format specifiers, specifically:
- %x - target_ulong argument printed in hex.
- %s - string pointer (target_ulong) and length (int) pair. */
+ %x - target_ulong argument printed in hex.
+ %lx - 64-bit argument printed in hex.
+ %s - string pointer (target_ulong) and length (int) pair. */
void gdb_do_syscall(gdb_syscall_complete_cb cb, char *fmt, ...)
{
va_list va;
char buf[256];
char *p;
target_ulong addr;
+ uint64_t i64;
GDBState *s;
s = gdb_syscall_state;
addr = va_arg(va, target_ulong);
p += sprintf(p, TARGET_FMT_lx, addr);
break;
+ case 'l':
+ if (*(fmt++) != 'x')
+ goto bad_format;
+ i64 = va_arg(va, uint64_t);
+ p += sprintf(p, "%" PRIx64, i64);
+ break;
case 's':
addr = va_arg(va, target_ulong);
p += sprintf(p, TARGET_FMT_lx "/%x", addr, va_arg(va, int));
break;
default:
+ bad_format:
fprintf(stderr, "gdbstub: Bad syscall format string '%s'\n",
fmt - 1);
break;
*(p++) = *(fmt++);
}
}
+ *p = 0;
va_end(va);
put_packet(s, buf);
#ifdef CONFIG_USER_ONLY
{
CPUState *env = s->env;
int i, csum;
- char reply[1];
+ uint8_t reply;
#ifndef CONFIG_USER_ONLY
if (s->last_packet_len) {
#ifdef DEBUG_GDB
printf("Got NACK, retransmitting\n");
#endif
- put_buffer(s, s->last_packet, s->last_packet_len);
+ put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len);
}
#ifdef DEBUG_GDB
else if (ch == '+')
/* when the CPU is running, we cannot do anything except stop
it when receiving a char */
vm_stop(EXCP_INTERRUPT);
- } else
+ } else
#endif
{
switch(s->state) {
csum += s->line_buf[i];
}
if (s->line_csum != (csum & 0xff)) {
- reply[0] = '-';
- put_buffer(s, reply, 1);
+ reply = '-';
+ put_buffer(s, &reply, 1);
s->state = RS_IDLE;
} else {
- reply[0] = '+';
- put_buffer(s, reply, 1);
+ reply = '+';
+ put_buffer(s, &reply, 1);
s->state = gdb_handle_packet(s, env, s->line_buf);
}
break;
/* set short latency */
val = 1;
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
-
+
s = &gdbserver_state;
memset (s, 0, sizeof (GDBState));
s->env = first_cpu; /* XXX: allow to change CPU */
return 0;
}
#else
-static int gdb_chr_can_recieve(void *opaque)
+static int gdb_chr_can_receive(void *opaque)
{
return 1;
}
-static void gdb_chr_recieve(void *opaque, const uint8_t *buf, int size)
+static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size)
{
GDBState *s = opaque;
int i;
}
s->env = first_cpu; /* XXX: allow to change CPU */
s->chr = chr;
- qemu_chr_add_handlers(chr, gdb_chr_can_recieve, gdb_chr_recieve,
+ qemu_chr_add_handlers(chr, gdb_chr_can_receive, gdb_chr_receive,
gdb_chr_event, s);
qemu_add_vm_stop_handler(gdb_vm_stopped, s);
return 0;
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