typedef struct GDBRegisterState {
int base_reg;
int num_regs;
- gdb_reg_cb get_reg;
- gdb_reg_cb set_reg;
+ gdb_get_reg_cb get_reg;
+ gdb_set_reg_cb set_reg;
const char *xml;
struct GDBRegisterState *next;
} GDBRegisterState;
int line_buf_index;
int line_sum; /* running checksum */
int line_csum; /* checksum at the end of the packet */
- uint8_t last_packet[MAX_PACKET_LENGTH + 4];
- int last_packet_len;
+ GByteArray *last_packet;
int signal;
#ifdef CONFIG_USER_ONLY
int fd;
char syscall_buf[256];
gdb_syscall_complete_cb current_syscall_cb;
GString *str_buf;
+ GByteArray *mem_buf;
} GDBState;
/* By default use no IRQs and no timers while single stepping so as to
memset(&gdbserver_state, 0, sizeof(GDBState));
gdbserver_state.init = true;
gdbserver_state.str_buf = g_string_new(NULL);
+ gdbserver_state.mem_buf = g_byte_array_sized_new(MAX_PACKET_LENGTH);
+ gdbserver_state.last_packet = g_byte_array_sized_new(MAX_PACKET_LENGTH + 4);
}
#ifndef CONFIG_USER_ONLY
g_string_append_c(buf, '\0');
}
-static void hextomem(uint8_t *mem, const char *buf, int len)
+static void hextomem(GByteArray *mem, const char *buf, int len)
{
int i;
for(i = 0; i < len; i++) {
- mem[i] = (fromhex(buf[0]) << 4) | fromhex(buf[1]);
+ guint8 byte = fromhex(buf[0]) << 4 | fromhex(buf[1]);
+ g_byte_array_append(mem, &byte, 1);
buf += 2;
}
}
static int put_packet_binary(const char *buf, int len, bool dump)
{
int csum, i;
- uint8_t *p;
- uint8_t *ps = &gdbserver_state.last_packet[0];
+ uint8_t footer[3];
if (dump && trace_event_get_state_backends(TRACE_GDBSTUB_IO_BINARYREPLY)) {
hexdump(buf, len, trace_gdbstub_io_binaryreply);
}
for(;;) {
- p = ps;
- *(p++) = '$';
- memcpy(p, buf, len);
- p += len;
+ g_byte_array_set_size(gdbserver_state.last_packet, 0);
+ g_byte_array_append(gdbserver_state.last_packet,
+ (const uint8_t *) "$", 1);
+ g_byte_array_append(gdbserver_state.last_packet,
+ (const uint8_t *) buf, len);
csum = 0;
for(i = 0; i < len; i++) {
csum += buf[i];
}
- *(p++) = '#';
- *(p++) = tohex((csum >> 4) & 0xf);
- *(p++) = tohex((csum) & 0xf);
+ footer[0] = '#';
+ footer[1] = tohex((csum >> 4) & 0xf);
+ footer[2] = tohex((csum) & 0xf);
+ g_byte_array_append(gdbserver_state.last_packet, footer, 3);
- gdbserver_state.last_packet_len = p - ps;
- put_buffer(ps, gdbserver_state.last_packet_len);
+ put_buffer(gdbserver_state.last_packet->data,
+ gdbserver_state.last_packet->len);
#ifdef CONFIG_USER_ONLY
i = get_char();
return name ? xml_builtin[i][1] : NULL;
}
-static int gdb_read_register(CPUState *cpu, uint8_t *mem_buf, int reg)
+static int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
CPUArchState *env = cpu->env_ptr;
GDBRegisterState *r;
if (reg < cc->gdb_num_core_regs) {
- return cc->gdb_read_register(cpu, mem_buf, reg);
+ return cc->gdb_read_register(cpu, buf, reg);
}
for (r = cpu->gdb_regs; r; r = r->next) {
if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) {
- return r->get_reg(env, mem_buf, reg - r->base_reg);
+ return r->get_reg(env, buf, reg - r->base_reg);
}
}
return 0;
*/
void gdb_register_coprocessor(CPUState *cpu,
- gdb_reg_cb get_reg, gdb_reg_cb set_reg,
+ gdb_get_reg_cb get_reg, gdb_set_reg_cb set_reg,
int num_regs, const char *xml, int g_pos)
{
GDBRegisterState *s;
typedef struct GdbCmdContext {
GdbCmdVariant *params;
int num_params;
- uint8_t mem_buf[MAX_PACKET_LENGTH];
} GdbCmdContext;
typedef void (*GdbCmdHandler)(GdbCmdContext *gdb_ctx, void *user_ctx);
}
g_string_set_size(gdbserver_state.str_buf, 0);
+ g_byte_array_set_size(gdbserver_state.mem_buf, 0);
/* In case there was an error during the command parsing we must
* send a NULL packet to indicate the command is not supported */
}
reg_size = strlen(gdb_ctx->params[1].data) / 2;
- hextomem(gdb_ctx->mem_buf, gdb_ctx->params[1].data, reg_size);
- gdb_write_register(gdbserver_state.g_cpu, gdb_ctx->mem_buf,
+ hextomem(gdbserver_state.mem_buf, gdb_ctx->params[1].data, reg_size);
+ gdb_write_register(gdbserver_state.g_cpu, gdbserver_state.mem_buf->data,
gdb_ctx->params[0].val_ull);
put_packet("OK");
}
return;
}
- reg_size = gdb_read_register(gdbserver_state.g_cpu, gdb_ctx->mem_buf,
+ reg_size = gdb_read_register(gdbserver_state.g_cpu,
+ gdbserver_state.mem_buf,
gdb_ctx->params[0].val_ull);
if (!reg_size) {
put_packet("E14");
return;
+ } else {
+ g_byte_array_set_size(gdbserver_state.mem_buf, reg_size);
}
- memtohex(gdbserver_state.str_buf, gdb_ctx->mem_buf, reg_size);
+ memtohex(gdbserver_state.str_buf, gdbserver_state.mem_buf->data, reg_size);
put_strbuf();
}
return;
}
- hextomem(gdb_ctx->mem_buf, gdb_ctx->params[2].data,
+ hextomem(gdbserver_state.mem_buf, gdb_ctx->params[2].data,
gdb_ctx->params[1].val_ull);
if (target_memory_rw_debug(gdbserver_state.g_cpu, gdb_ctx->params[0].val_ull,
- gdb_ctx->mem_buf,
- gdb_ctx->params[1].val_ull, true)) {
+ gdbserver_state.mem_buf->data,
+ gdbserver_state.mem_buf->len, true)) {
put_packet("E14");
return;
}
return;
}
+ g_byte_array_set_size(gdbserver_state.mem_buf, gdb_ctx->params[1].val_ull);
+
if (target_memory_rw_debug(gdbserver_state.g_cpu, gdb_ctx->params[0].val_ull,
- gdb_ctx->mem_buf,
- gdb_ctx->params[1].val_ull, false)) {
+ gdbserver_state.mem_buf->data,
+ gdbserver_state.mem_buf->len, false)) {
put_packet("E14");
return;
}
- memtohex(gdbserver_state.str_buf, gdb_ctx->mem_buf, gdb_ctx->params[1].val_ull);
+ memtohex(gdbserver_state.str_buf, gdbserver_state.mem_buf->data,
+ gdbserver_state.mem_buf->len);
put_strbuf();
}
}
cpu_synchronize_state(gdbserver_state.g_cpu);
- registers = gdb_ctx->mem_buf;
len = strlen(gdb_ctx->params[0].data) / 2;
- hextomem(registers, gdb_ctx->params[0].data, len);
+ hextomem(gdbserver_state.mem_buf, gdb_ctx->params[0].data, len);
+ registers = gdbserver_state.mem_buf->data;
for (addr = 0; addr < gdbserver_state.g_cpu->gdb_num_g_regs && len > 0;
addr++) {
reg_size = gdb_write_register(gdbserver_state.g_cpu, registers, addr);
target_ulong addr, len;
cpu_synchronize_state(gdbserver_state.g_cpu);
+ g_byte_array_set_size(gdbserver_state.mem_buf, 0);
len = 0;
for (addr = 0; addr < gdbserver_state.g_cpu->gdb_num_g_regs; addr++) {
- len += gdb_read_register(gdbserver_state.g_cpu, gdb_ctx->mem_buf + len,
+ len += gdb_read_register(gdbserver_state.g_cpu,
+ gdbserver_state.mem_buf,
addr);
}
+ g_assert(len == gdbserver_state.mem_buf->len);
- memtohex(gdbserver_state.str_buf, gdb_ctx->mem_buf, len);
+ memtohex(gdbserver_state.str_buf, gdbserver_state.mem_buf->data, len);
put_strbuf();
}
/* Print the CPU model and name in multiprocess mode */
ObjectClass *oc = object_get_class(OBJECT(cpu));
const char *cpu_model = object_class_get_name(oc);
- g_autofree char *cpu_name;
- cpu_name = object_get_canonical_path_component(OBJECT(cpu));
+ g_autofree char *cpu_name =
+ object_get_canonical_path_component(OBJECT(cpu));
g_string_printf(rs, "%s %s [%s]", cpu_model, cpu_name,
cpu->halted ? "halted " : "running");
} else {
#else
static void handle_query_rcmd(GdbCmdContext *gdb_ctx, void *user_ctx)
{
+ const guint8 zero = 0;
int len;
if (!gdb_ctx->num_params) {
return;
}
+ g_assert(gdbserver_state.mem_buf->len == 0);
len = len / 2;
- hextomem(gdb_ctx->mem_buf, gdb_ctx->params[0].data, len);
- gdb_ctx->mem_buf[len++] = 0;
- qemu_chr_be_write(gdbserver_state.mon_chr, gdb_ctx->mem_buf, len);
+ hextomem(gdbserver_state.mem_buf, gdb_ctx->params[0].data, len);
+ g_byte_array_append(gdbserver_state.mem_buf, &zero, 1);
+ qemu_chr_be_write(gdbserver_state.mon_chr, gdbserver_state.mem_buf->data,
+ gdbserver_state.mem_buf->len);
put_packet("OK");
-
}
#endif
gdbserver_state.multiprocess = true;
}
- g_string_append(gdbserver_state.str_buf, ";multiprocess+");
+ g_string_append(gdbserver_state.str_buf, ";vContSupported+;multiprocess+");
put_strbuf();
}
uint8_t reply;
#ifndef CONFIG_USER_ONLY
- if (gdbserver_state.last_packet_len) {
+ if (gdbserver_state.last_packet->len) {
/* Waiting for a response to the last packet. If we see the start
of a new command then abandon the previous response. */
if (ch == '-') {
trace_gdbstub_err_got_nack();
- put_buffer((uint8_t *)gdbserver_state.last_packet, gdbserver_state.last_packet_len);
+ put_buffer(gdbserver_state.last_packet->data,
+ gdbserver_state.last_packet->len);
} else if (ch == '+') {
trace_gdbstub_io_got_ack();
} else {
trace_gdbstub_io_got_unexpected(ch);
}
- if (ch == '+' || ch == '$')
- gdbserver_state.last_packet_len = 0;
+ if (ch == '+' || ch == '$') {
+ g_byte_array_set_size(gdbserver_state.last_packet, 0);
+ }
if (ch != '$')
return;
}
}
}
-static void gdb_monitor_output(const char *msg, int len)
-{
- g_autoptr(GString) buf = g_string_new("O");
- memtohex(buf, (uint8_t *)msg, len);
- put_packet(buf->str);
-}
-
static int gdb_monitor_write(Chardev *chr, const uint8_t *buf, int len)
{
- const char *p = (const char *)buf;
- int max_sz;
-
- max_sz = (sizeof(gdbserver_state.last_packet) - 2) / 2;
- for (;;) {
- if (len <= max_sz) {
- gdb_monitor_output(p, len);
- break;
- }
- gdb_monitor_output(p, max_sz);
- p += max_sz;
- len -= max_sz;
- }
+ g_autoptr(GString) hex_buf = g_string_new("O");
+ memtohex(hex_buf, buf, len);
+ put_packet(hex_buf->str);
return len;
}
projects / thirdparty / qemu.git / blobdiff