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-rw-r--r--gdbstub.c185
1 files changed, 159 insertions, 26 deletions
diff --git a/gdbstub.c b/gdbstub.c
index bdd2c0410..66a4d5681 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -29,7 +29,10 @@
#include "qemu.h"
#else
-#include "vl.h"
+#include "qemu-common.h"
+#include "qemu-char.h"
+#include "sysemu.h"
+#include "gdbstub.h"
#include "qemu-kvm.h"
#endif
@@ -61,7 +64,7 @@ typedef struct GDBState {
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;
@@ -186,7 +189,7 @@ static void hextomem(uint8_t *mem, const char *buf, int len)
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);
@@ -207,7 +210,7 @@ static int put_packet(GDBState *s, char *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);
@@ -360,8 +363,56 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
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 *)&registers64[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];
@@ -435,7 +486,7 @@ static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
}
/* 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));
@@ -464,7 +515,7 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
}
/* 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;
@@ -698,7 +749,7 @@ static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
ptr += sizeof(target_ulong);
}
- *(target_ulong *)ptr = tswapl(env->CP0_Status);
+ *(target_ulong *)ptr = (int32_t)tswap32(env->CP0_Status);
ptr += sizeof(target_ulong);
*(target_ulong *)ptr = tswapl(env->LO[0][env->current_tc]);
@@ -710,7 +761,7 @@ static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
*(target_ulong *)ptr = tswapl(env->CP0_BadVAddr);
ptr += sizeof(target_ulong);
- *(target_ulong *)ptr = tswapl(env->CP0_Cause);
+ *(target_ulong *)ptr = (int32_t)tswap32(env->CP0_Cause);
ptr += sizeof(target_ulong);
*(target_ulong *)ptr = tswapl(env->PC[env->current_tc]);
@@ -720,19 +771,34 @@ static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
{
for (i = 0; i < 32; i++)
{
- *(target_ulong *)ptr = tswapl(env->fpu->fpr[i].fs[FP_ENDIAN_IDX]);
+ 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);
}
- *(target_ulong *)ptr = tswapl(env->fpu->fcr31);
+ *(target_ulong *)ptr = (int32_t)tswap32(env->fpu->fcr31);
ptr += sizeof(target_ulong);
- *(target_ulong *)ptr = tswapl(env->fpu->fcr0);
+ *(target_ulong *)ptr = (int32_t)tswap32(env->fpu->fcr0);
+ ptr += sizeof(target_ulong);
+ }
+
+ /* "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);
}
- /* 32 FP registers, fsr, fir, fp. Not yet implemented. */
- /* what's 'fp' mean here? */
+ /* Processor ID. */
+ *(target_ulong *)ptr = (int32_t)tswap32(env->CP0_PRid);
+ ptr += sizeof(target_ulong);
return ptr - mem_buf;
}
@@ -782,15 +848,17 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
{
for (i = 0; i < 32; i++)
{
- env->fpu->fpr[i].fs[FP_ENDIAN_IDX] = tswapl(*(target_ulong *)ptr);
+ 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->fpu->fcr31 = tswapl(*(target_ulong *)ptr) & 0x0183FFFF;
+ env->fpu->fcr31 = tswapl(*(target_ulong *)ptr) & 0xFF83FFFF;
ptr += sizeof(target_ulong);
- env->fpu->fcr0 = tswapl(*(target_ulong *)ptr);
- ptr += sizeof(target_ulong);
+ /* The remaining registers are assumed to be read-only. */
/* set rounding mode */
RESTORE_ROUNDING_MODE;
@@ -863,6 +931,66 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
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[SR_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)
{
@@ -880,7 +1008,7 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_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;
@@ -914,6 +1042,8 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
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
@@ -941,6 +1071,8 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
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);
@@ -1070,7 +1202,8 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
TaskState *ts = env->opaque;
sprintf(buf,
- "Text=" TARGET_FMT_lx ";Data=" TARGET_FMT_lx ";Bss=" TARGET_FMT_lx,
+ "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);
@@ -1193,7 +1326,7 @@ static void gdb_read_byte(GDBState *s, int ch)
{
CPUState *env = s->env;
int i, csum;
- char reply[1];
+ uint8_t reply;
#ifndef CONFIG_USER_ONLY
if (s->last_packet_len) {
@@ -1203,7 +1336,7 @@ static void gdb_read_byte(GDBState *s, int ch)
#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 == '+')
@@ -1251,12 +1384,12 @@ static void gdb_read_byte(GDBState *s, int ch)
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;