/**
* Log all possible info about the tunnel state.
*
* @param t Tunnel to debug.
* @param level Debug level to use.
*/
void
GCT_debug (const struct CadetTunnel *t,
enum GNUNET_ErrorType level)
{
struct CadetTConnection *iter_c;
int do_log;
do_log = GNUNET_get_log_call_status (level & (~GNUNET_ERROR_TYPE_BULK),
"cadet-tun",
__FILE__, __FUNCTION__, __LINE__);
if (0 == do_log)
return;
LOG2 (level,
"TTT TUNNEL TOWARDS %s in cstate %s, estate %s tq_len: %u #cons: %u\n",
GCT_2s (t),
cstate2s (t->cstate),
estate2s (t->estate),
t->tq_len,
t->num_connections);
#if DUMP_KEYS_TO_STDERR
ax_debug (t->ax, level);
#endif
LOG2 (level,
"TTT channels:\n");
GNUNET_CONTAINER_multihashmap32_iterate (t->channels,
&debug_channel,
&level);
LOG2 (level,
"TTT connections:\n");
for (iter_c = t->connection_head; NULL != iter_c; iter_c = iter_c->next)
GCC_debug (iter_c->cc,
level);
LOG2 (level,
"TTT TUNNEL END\n");
}
enum eval_result_type
gdb_eval_agent_expr (struct eval_agent_expr_context *ctx,
struct agent_expr *aexpr,
ULONGEST *rslt)
{
int pc = 0;
#define STACK_MAX 100
ULONGEST stack[STACK_MAX], top;
int sp = 0;
unsigned char op;
int arg;
/* This union is a convenient way to convert representations. For
now, assume a standard architecture where the hardware integer
types have 8, 16, 32, 64 bit types. A more robust solution would
be to import stdint.h from gnulib. */
union
{
union
{
unsigned char bytes[1];
unsigned char val;
} u8;
union
{
unsigned char bytes[2];
unsigned short val;
} u16;
union
{
unsigned char bytes[4];
unsigned int val;
} u32;
union
{
unsigned char bytes[8];
ULONGEST val;
} u64;
} cnv;
if (aexpr->length == 0)
{
ax_debug ("empty agent expression");
return expr_eval_empty_expression;
}
/* Cache the stack top in its own variable. Much of the time we can
operate on this variable, rather than dinking with the stack. It
needs to be copied to the stack when sp changes. */
top = 0;
while (1)
{
op = aexpr->bytes[pc++];
ax_debug ("About to interpret byte 0x%x", op);
switch (op)
{
case gdb_agent_op_add:
top += stack[--sp];
break;
case gdb_agent_op_sub:
top = stack[--sp] - top;
break;
case gdb_agent_op_mul:
top *= stack[--sp];
break;
case gdb_agent_op_div_signed:
if (top == 0)
{
ax_debug ("Attempted to divide by zero");
return expr_eval_divide_by_zero;
}
top = ((LONGEST) stack[--sp]) / ((LONGEST) top);
break;
case gdb_agent_op_div_unsigned:
if (top == 0)
{
ax_debug ("Attempted to divide by zero");
return expr_eval_divide_by_zero;
}
top = stack[--sp] / top;
break;
case gdb_agent_op_rem_signed:
if (top == 0)
{
ax_debug ("Attempted to divide by zero");
return expr_eval_divide_by_zero;
}
top = ((LONGEST) stack[--sp]) % ((LONGEST) top);
break;
case gdb_agent_op_rem_unsigned:
if (top == 0)
{
ax_debug ("Attempted to divide by zero");
return expr_eval_divide_by_zero;
}
top = stack[--sp] % top;
break;
case gdb_agent_op_lsh:
top = stack[--sp] << top;
break;
case gdb_agent_op_rsh_signed:
top = ((LONGEST) stack[--sp]) >> top;
break;
case gdb_agent_op_rsh_unsigned:
top = stack[--sp] >> top;
break;
case gdb_agent_op_trace:
agent_mem_read (ctx, NULL, (CORE_ADDR) stack[--sp],
(ULONGEST) top);
if (--sp >= 0)
top = stack[sp];
break;
case gdb_agent_op_trace_quick:
arg = aexpr->bytes[pc++];
agent_mem_read (ctx, NULL, (CORE_ADDR) top, (ULONGEST) arg);
break;
case gdb_agent_op_log_not:
top = !top;
break;
case gdb_agent_op_bit_and:
top &= stack[--sp];
break;
case gdb_agent_op_bit_or:
top |= stack[--sp];
break;
case gdb_agent_op_bit_xor:
top ^= stack[--sp];
break;
case gdb_agent_op_bit_not:
top = ~top;
break;
case gdb_agent_op_equal:
top = (stack[--sp] == top);
break;
case gdb_agent_op_less_signed:
top = (((LONGEST) stack[--sp]) < ((LONGEST) top));
break;
case gdb_agent_op_less_unsigned:
top = (stack[--sp] < top);
break;
case gdb_agent_op_ext:
arg = aexpr->bytes[pc++];
if (arg < (sizeof (LONGEST) * 8))
{
LONGEST mask = 1 << (arg - 1);
top &= ((LONGEST) 1 << arg) - 1;
top = (top ^ mask) - mask;
}
break;
case gdb_agent_op_ref8:
agent_mem_read (ctx, cnv.u8.bytes, (CORE_ADDR) top, 1);
top = cnv.u8.val;
break;
case gdb_agent_op_ref16:
agent_mem_read (ctx, cnv.u16.bytes, (CORE_ADDR) top, 2);
top = cnv.u16.val;
break;
case gdb_agent_op_ref32:
agent_mem_read (ctx, cnv.u32.bytes, (CORE_ADDR) top, 4);
top = cnv.u32.val;
break;
case gdb_agent_op_ref64:
agent_mem_read (ctx, cnv.u64.bytes, (CORE_ADDR) top, 8);
top = cnv.u64.val;
break;
case gdb_agent_op_if_goto:
if (top)
pc = (aexpr->bytes[pc] << 8) + (aexpr->bytes[pc + 1]);
else
pc += 2;
if (--sp >= 0)
top = stack[sp];
break;
case gdb_agent_op_goto:
pc = (aexpr->bytes[pc] << 8) + (aexpr->bytes[pc + 1]);
break;
case gdb_agent_op_const8:
/* Flush the cached stack top. */
stack[sp++] = top;
top = aexpr->bytes[pc++];
break;
case gdb_agent_op_const16:
/* Flush the cached stack top. */
stack[sp++] = top;
top = aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
break;
case gdb_agent_op_const32:
/* Flush the cached stack top. */
stack[sp++] = top;
top = aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
break;
case gdb_agent_op_const64:
/* Flush the cached stack top. */
stack[sp++] = top;
top = aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
break;
case gdb_agent_op_reg:
/* Flush the cached stack top. */
stack[sp++] = top;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
{
int regnum = arg;
struct regcache *regcache = ctx->regcache;
switch (register_size (regcache->tdesc, regnum))
{
case 8:
collect_register (regcache, regnum, cnv.u64.bytes);
top = cnv.u64.val;
break;
case 4:
collect_register (regcache, regnum, cnv.u32.bytes);
top = cnv.u32.val;
break;
case 2:
collect_register (regcache, regnum, cnv.u16.bytes);
top = cnv.u16.val;
break;
case 1:
collect_register (regcache, regnum, cnv.u8.bytes);
top = cnv.u8.val;
break;
default:
internal_error (__FILE__, __LINE__,
"unhandled register size");
}
}
break;
case gdb_agent_op_end:
ax_debug ("At end of expression, sp=%d, stack top cache=0x%s",
sp, pulongest (top));
if (rslt)
{
if (sp <= 0)
{
/* This should be an error */
ax_debug ("Stack is empty, nothing to return");
return expr_eval_empty_stack;
}
*rslt = top;
}
return expr_eval_no_error;
case gdb_agent_op_dup:
stack[sp++] = top;
break;
case gdb_agent_op_pop:
if (--sp >= 0)
top = stack[sp];
break;
case gdb_agent_op_pick:
arg = aexpr->bytes[pc++];
stack[sp] = top;
top = stack[sp - arg];
++sp;
break;
case gdb_agent_op_rot:
{
ULONGEST tem = stack[sp - 1];
stack[sp - 1] = stack[sp - 2];
stack[sp - 2] = top;
top = tem;
}
break;
case gdb_agent_op_zero_ext:
arg = aexpr->bytes[pc++];
if (arg < (sizeof (LONGEST) * 8))
top &= ((LONGEST) 1 << arg) - 1;
break;
case gdb_agent_op_swap:
/* Interchange top two stack elements, making sure top gets
copied back onto stack. */
stack[sp] = top;
top = stack[sp - 1];
stack[sp - 1] = stack[sp];
break;
case gdb_agent_op_getv:
/* Flush the cached stack top. */
stack[sp++] = top;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
top = agent_get_trace_state_variable_value (arg);
break;
case gdb_agent_op_setv:
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
agent_set_trace_state_variable_value (arg, top);
/* Note that we leave the value on the stack, for the
benefit of later/enclosing expressions. */
break;
case gdb_agent_op_tracev:
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
agent_tsv_read (ctx, arg);
break;
case gdb_agent_op_tracenz:
agent_mem_read_string (ctx, NULL, (CORE_ADDR) stack[--sp],
(ULONGEST) top);
if (--sp >= 0)
top = stack[sp];
break;
case gdb_agent_op_printf:
{
int nargs, slen, i;
CORE_ADDR fn = 0, chan = 0;
/* Can't have more args than the entire size of the stack. */
ULONGEST args[STACK_MAX];
char *format;
nargs = aexpr->bytes[pc++];
slen = aexpr->bytes[pc++];
slen = (slen << 8) + aexpr->bytes[pc++];
format = (char *) &(aexpr->bytes[pc]);
pc += slen;
/* Pop function and channel. */
fn = top;
if (--sp >= 0)
top = stack[sp];
chan = top;
if (--sp >= 0)
top = stack[sp];
/* Pop arguments into a dedicated array. */
for (i = 0; i < nargs; ++i)
{
args[i] = top;
if (--sp >= 0)
top = stack[sp];
}
/* A bad format string means something is very wrong; give
up immediately. */
if (format[slen - 1] != '\0')
error (_("Unterminated format string in printf bytecode"));
ax_printf (fn, chan, format, nargs, args);
}
break;
/* GDB never (currently) generates any of these ops. */
case gdb_agent_op_float:
case gdb_agent_op_ref_float:
case gdb_agent_op_ref_double:
case gdb_agent_op_ref_long_double:
case gdb_agent_op_l_to_d:
case gdb_agent_op_d_to_l:
case gdb_agent_op_trace16:
ax_debug ("Agent expression op 0x%x valid, but not handled",
op);
/* If ever GDB generates any of these, we don't have the
option of ignoring. */
return expr_eval_unhandled_opcode;
default:
ax_debug ("Agent expression op 0x%x not recognized", op);
/* Don't struggle on, things will just get worse. */
return expr_eval_unrecognized_opcode;
}
/* Check for stack badness. */
if (sp >= (STACK_MAX - 1))
{
ax_debug ("Expression stack overflow");
return expr_eval_stack_overflow;
}
if (sp < 0)
{
ax_debug ("Expression stack underflow");
return expr_eval_stack_underflow;
}
ax_debug ("Op %s -> sp=%d, top=0x%s",
gdb_agent_op_name (op), sp, phex_nz (top, 0));
}
}
static void
ax_printf (CORE_ADDR fn, CORE_ADDR chan, const char *format,
int nargs, ULONGEST *args)
{
const char *f = format;
struct format_piece *fpieces;
int i, fp;
char *current_substring;
int nargs_wanted;
ax_debug ("Printf of \"%s\" with %d args", format, nargs);
fpieces = parse_format_string (&f);
nargs_wanted = 0;
for (fp = 0; fpieces[fp].string != NULL; fp++)
if (fpieces[fp].argclass != literal_piece)
++nargs_wanted;
if (nargs != nargs_wanted)
error (_("Wrong number of arguments for specified format-string"));
i = 0;
for (fp = 0; fpieces[fp].string != NULL; fp++)
{
current_substring = fpieces[fp].string;
ax_debug ("current substring is '%s', class is %d",
current_substring, fpieces[fp].argclass);
switch (fpieces[fp].argclass)
{
case string_arg:
{
gdb_byte *str;
CORE_ADDR tem;
int j;
tem = args[i];
/* This is a %s argument. Find the length of the string. */
for (j = 0;; j++)
{
gdb_byte c;
read_inferior_memory (tem + j, &c, 1);
if (c == 0)
break;
}
/* Copy the string contents into a string inside GDB. */
str = (gdb_byte *) alloca (j + 1);
if (j != 0)
read_inferior_memory (tem, str, j);
str[j] = 0;
printf (current_substring, (char *) str);
}
break;
case long_long_arg:
#if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG)
{
long long val = args[i];
printf (current_substring, val);
break;
}
#else
error (_("long long not supported in agent printf"));
#endif
case int_arg:
{
int val = args[i];
printf (current_substring, val);
break;
}
case long_arg:
{
long val = args[i];
printf (current_substring, val);
break;
}
case literal_piece:
/* Print a portion of the format string that has no
directives. Note that this will not include any
ordinary %-specs, but it might include "%%". That is
why we use printf_filtered and not puts_filtered here.
Also, we pass a dummy argument because some platforms
have modified GCC to include -Wformat-security by
default, which will warn here if there is no
argument. */
printf (current_substring, 0);
break;
default:
error (_("Format directive in '%s' not supported in agent printf"),
current_substring);
}
/* Maybe advance to the next argument. */
if (fpieces[fp].argclass != literal_piece)
++i;
}
free_format_pieces (fpieces);
fflush (stdout);
}
enum eval_result_type
compile_bytecodes (struct agent_expr *aexpr)
{
int pc = 0;
int done = 0;
unsigned char op, next_op;
int arg;
/* This is only used to build 64-bit value for constants. */
ULONGEST top;
struct bytecode_address *aentry, *aentry2;
#define UNHANDLED \
do \
{ \
ax_debug ("Cannot compile op 0x%x\n", op); \
return expr_eval_unhandled_opcode; \
} while (0)
if (aexpr->length == 0)
{
ax_debug ("empty agent expression\n");
return expr_eval_empty_expression;
}
bytecode_address_table = NULL;
while (!done)
{
op = aexpr->bytes[pc];
ax_debug ("About to compile op 0x%x, pc=%d\n", op, pc);
/* Record the compiled-code address of the bytecode, for use by
jump instructions. */
aentry = XNEW (struct bytecode_address);
aentry->pc = pc;
aentry->address = current_insn_ptr;
aentry->goto_pc = -1;
aentry->from_offset = aentry->from_size = 0;
aentry->next = bytecode_address_table;
bytecode_address_table = aentry;
++pc;
emit_error = 0;
switch (op)
{
case gdb_agent_op_add:
emit_add ();
break;
case gdb_agent_op_sub:
emit_sub ();
break;
case gdb_agent_op_mul:
emit_mul ();
break;
case gdb_agent_op_div_signed:
UNHANDLED;
break;
case gdb_agent_op_div_unsigned:
UNHANDLED;
break;
case gdb_agent_op_rem_signed:
UNHANDLED;
break;
case gdb_agent_op_rem_unsigned:
UNHANDLED;
break;
case gdb_agent_op_lsh:
emit_lsh ();
break;
case gdb_agent_op_rsh_signed:
emit_rsh_signed ();
break;
case gdb_agent_op_rsh_unsigned:
emit_rsh_unsigned ();
break;
case gdb_agent_op_trace:
UNHANDLED;
break;
case gdb_agent_op_trace_quick:
UNHANDLED;
break;
case gdb_agent_op_log_not:
emit_log_not ();
break;
case gdb_agent_op_bit_and:
emit_bit_and ();
break;
case gdb_agent_op_bit_or:
emit_bit_or ();
break;
case gdb_agent_op_bit_xor:
emit_bit_xor ();
break;
case gdb_agent_op_bit_not:
emit_bit_not ();
break;
case gdb_agent_op_equal:
next_op = aexpr->bytes[pc];
if (next_op == gdb_agent_op_if_goto
&& !is_goto_target (aexpr, pc)
&& target_emit_ops ()->emit_eq_goto)
{
ax_debug ("Combining equal & if_goto");
pc += 1;
aentry->pc = pc;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_eq_goto (&(aentry->from_offset), &(aentry->from_size));
}
else if (next_op == gdb_agent_op_log_not
&& (aexpr->bytes[pc + 1] == gdb_agent_op_if_goto)
&& !is_goto_target (aexpr, pc + 1)
&& target_emit_ops ()->emit_ne_goto)
{
ax_debug ("Combining equal & log_not & if_goto");
pc += 2;
aentry->pc = pc;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_ne_goto (&(aentry->from_offset), &(aentry->from_size));
}
else
emit_equal ();
break;
case gdb_agent_op_less_signed:
next_op = aexpr->bytes[pc];
if (next_op == gdb_agent_op_if_goto
&& !is_goto_target (aexpr, pc))
{
ax_debug ("Combining less_signed & if_goto");
pc += 1;
aentry->pc = pc;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_lt_goto (&(aentry->from_offset), &(aentry->from_size));
}
else if (next_op == gdb_agent_op_log_not
&& !is_goto_target (aexpr, pc)
&& (aexpr->bytes[pc + 1] == gdb_agent_op_if_goto)
&& !is_goto_target (aexpr, pc + 1))
{
ax_debug ("Combining less_signed & log_not & if_goto");
pc += 2;
aentry->pc = pc;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_ge_goto (&(aentry->from_offset), &(aentry->from_size));
}
else
emit_less_signed ();
break;
case gdb_agent_op_less_unsigned:
emit_less_unsigned ();
break;
case gdb_agent_op_ext:
arg = aexpr->bytes[pc++];
if (arg < (sizeof (LONGEST) * 8))
emit_ext (arg);
break;
case gdb_agent_op_ref8:
emit_ref (1);
break;
case gdb_agent_op_ref16:
emit_ref (2);
break;
case gdb_agent_op_ref32:
emit_ref (4);
break;
case gdb_agent_op_ref64:
emit_ref (8);
break;
case gdb_agent_op_if_goto:
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_if_goto (&(aentry->from_offset), &(aentry->from_size));
break;
case gdb_agent_op_goto:
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_goto (&(aentry->from_offset), &(aentry->from_size));
break;
case gdb_agent_op_const8:
emit_stack_flush ();
top = aexpr->bytes[pc++];
emit_const (top);
break;
case gdb_agent_op_const16:
emit_stack_flush ();
top = aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
emit_const (top);
break;
case gdb_agent_op_const32:
emit_stack_flush ();
top = aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
emit_const (top);
break;
case gdb_agent_op_const64:
emit_stack_flush ();
top = aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
top = (top << 8) + aexpr->bytes[pc++];
emit_const (top);
break;
case gdb_agent_op_reg:
emit_stack_flush ();
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
emit_reg (arg);
break;
case gdb_agent_op_end:
ax_debug ("At end of expression\n");
/* Assume there is one stack element left, and that it is
cached in "top" where emit_epilogue can get to it. */
emit_stack_adjust (1);
done = 1;
break;
case gdb_agent_op_dup:
/* In our design, dup is equivalent to stack flushing. */
emit_stack_flush ();
break;
case gdb_agent_op_pop:
emit_pop ();
break;
case gdb_agent_op_zero_ext:
arg = aexpr->bytes[pc++];
if (arg < (sizeof (LONGEST) * 8))
emit_zero_ext (arg);
break;
case gdb_agent_op_swap:
next_op = aexpr->bytes[pc];
/* Detect greater-than comparison sequences. */
if (next_op == gdb_agent_op_less_signed
&& !is_goto_target (aexpr, pc)
&& (aexpr->bytes[pc + 1] == gdb_agent_op_if_goto)
&& !is_goto_target (aexpr, pc + 1))
{
ax_debug ("Combining swap & less_signed & if_goto");
pc += 2;
aentry->pc = pc;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_gt_goto (&(aentry->from_offset), &(aentry->from_size));
}
else if (next_op == gdb_agent_op_less_signed
&& !is_goto_target (aexpr, pc)
&& (aexpr->bytes[pc + 1] == gdb_agent_op_log_not)
&& !is_goto_target (aexpr, pc + 1)
&& (aexpr->bytes[pc + 2] == gdb_agent_op_if_goto)
&& !is_goto_target (aexpr, pc + 2))
{
ax_debug ("Combining swap & less_signed & log_not & if_goto");
pc += 3;
aentry->pc = pc;
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
aentry->goto_pc = arg;
emit_le_goto (&(aentry->from_offset), &(aentry->from_size));
}
else
emit_swap ();
break;
case gdb_agent_op_getv:
emit_stack_flush ();
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
emit_int_call_1 (get_get_tsv_func_addr (),
arg);
break;
case gdb_agent_op_setv:
arg = aexpr->bytes[pc++];
arg = (arg << 8) + aexpr->bytes[pc++];
emit_void_call_2 (get_set_tsv_func_addr (),
arg);
break;
case gdb_agent_op_tracev:
UNHANDLED;
break;
/* GDB never (currently) generates any of these ops. */
case gdb_agent_op_float:
case gdb_agent_op_ref_float:
case gdb_agent_op_ref_double:
case gdb_agent_op_ref_long_double:
case gdb_agent_op_l_to_d:
case gdb_agent_op_d_to_l:
case gdb_agent_op_trace16:
UNHANDLED;
break;
default:
ax_debug ("Agent expression op 0x%x not recognized\n", op);
/* Don't struggle on, things will just get worse. */
return expr_eval_unrecognized_opcode;
}
/* This catches errors that occur in target-specific code
emission. */
if (emit_error)
{
ax_debug ("Error %d while emitting code for %s\n",
emit_error, gdb_agent_op_name (op));
return expr_eval_unhandled_opcode;
}
ax_debug ("Op %s compiled\n", gdb_agent_op_name (op));
}
/* Now fill in real addresses as goto destinations. */
for (aentry = bytecode_address_table; aentry; aentry = aentry->next)
{
int written = 0;
if (aentry->goto_pc < 0)
continue;
/* Find the location that we are going to, and call back into
target-specific code to write the actual address or
displacement. */
for (aentry2 = bytecode_address_table; aentry2; aentry2 = aentry2->next)
{
if (aentry2->pc == aentry->goto_pc)
{
ax_debug ("Want to jump from %s to %s\n",
paddress (aentry->address),
paddress (aentry2->address));
write_goto_address (aentry->address + aentry->from_offset,
aentry2->address, aentry->from_size);
written = 1;
break;
}
}
/* Error out if we didn't find a destination. */
if (!written)
{
ax_debug ("Destination of goto %d not found\n",
aentry->goto_pc);
return expr_eval_invalid_goto;
}
}
return expr_eval_no_error;
}
