static int
aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
struct stap_parse_info *p)
{
if (*p->arg == '[')
{
/* Temporary holder for lookahead. */
const char *tmp = p->arg;
char *endp;
/* Used to save the register name. */
const char *start;
char *regname;
int len;
int got_minus = 0;
long displacement;
struct stoken str;
++tmp;
start = tmp;
/* Register name. */
while (isalnum (*tmp))
++tmp;
if (*tmp != ',')
return 0;
len = tmp - start;
regname = (char *) alloca (len + 2);
strncpy (regname, start, len);
regname[len] = '\0';
if (user_reg_map_name_to_regnum (gdbarch, regname, len) == -1)
error (_("Invalid register name `%s' on expression `%s'."),
regname, p->saved_arg);
++tmp;
tmp = skip_spaces_const (tmp);
/* Now we expect a number. It can begin with '#' or simply
a digit. */
if (*tmp == '#')
++tmp;
if (*tmp == '-')
{
++tmp;
got_minus = 1;
}
else if (*tmp == '+')
++tmp;
if (!isdigit (*tmp))
return 0;
displacement = strtol (tmp, &endp, 10);
tmp = endp;
/* Skipping last `]'. */
if (*tmp++ != ']')
return 0;
/* The displacement. */
write_exp_elt_opcode (&p->pstate, OP_LONG);
write_exp_elt_type (&p->pstate, builtin_type (gdbarch)->builtin_long);
write_exp_elt_longcst (&p->pstate, displacement);
write_exp_elt_opcode (&p->pstate, OP_LONG);
if (got_minus)
write_exp_elt_opcode (&p->pstate, UNOP_NEG);
/* The register name. */
write_exp_elt_opcode (&p->pstate, OP_REGISTER);
str.ptr = regname;
str.length = len;
write_exp_string (&p->pstate, str);
write_exp_elt_opcode (&p->pstate, OP_REGISTER);
write_exp_elt_opcode (&p->pstate, BINOP_ADD);
/* Casting to the expected type. */
write_exp_elt_opcode (&p->pstate, UNOP_CAST);
write_exp_elt_type (&p->pstate, lookup_pointer_type (p->arg_type));
write_exp_elt_opcode (&p->pstate, UNOP_CAST);
write_exp_elt_opcode (&p->pstate, UNOP_IND);
p->arg = tmp;
}
else
return 0;
return 1;
}
static void
scm_lreadr (int skipping)
{
int c, j;
struct stoken str;
LONGEST svalue = 0;
tryagain:
c = *lexptr++;
switch (c)
{
case '\0':
lexptr--;
return;
case '[':
case '(':
scm_lreadparen (skipping);
return;
case ']':
case ')':
error ("unexpected #\\%c", c);
goto tryagain;
case '\'':
case '`':
str.ptr = lexptr - 1;
scm_lreadr (skipping);
if (!skipping)
{
struct value *val = scm_evaluate_string (str.ptr, lexptr - str.ptr);
if (!is_scmvalue_type (value_type (val)))
error ("quoted scm form yields non-SCM value");
svalue = extract_signed_integer (value_contents (val),
TYPE_LENGTH (value_type (val)));
goto handle_immediate;
}
return;
case ',':
c = *lexptr++;
if ('@' != c)
lexptr--;
scm_lreadr (skipping);
return;
case '#':
c = *lexptr++;
switch (c)
{
case '[':
case '(':
scm_lreadparen (skipping);
return;
case 't':
case 'T':
svalue = SCM_BOOL_T;
goto handle_immediate;
case 'f':
case 'F':
svalue = SCM_BOOL_F;
goto handle_immediate;
case 'b':
case 'B':
case 'o':
case 'O':
case 'd':
case 'D':
case 'x':
case 'X':
case 'i':
case 'I':
case 'e':
case 'E':
lexptr--;
c = '#';
goto num;
case '*': /* bitvector */
scm_read_token (c, 0);
return;
case '{':
scm_read_token (c, 1);
return;
case '\\': /* character */
c = *lexptr++;
scm_read_token (c, 0);
return;
case '|':
j = 1; /* here j is the comment nesting depth */
lp:
c = *lexptr++;
lpc:
switch (c)
{
case '\0':
error ("unbalanced comment");
default:
goto lp;
case '|':
if ('#' != (c = *lexptr++))
goto lpc;
if (--j)
goto lp;
break;
case '#':
if ('|' != (c = *lexptr++))
goto lpc;
++j;
goto lp;
}
goto tryagain;
case '.':
default:
#if 0
callshrp:
#endif
scm_lreadr (skipping);
return;
}
case '\"':
while ('\"' != (c = *lexptr++))
{
if (c == '\\')
switch (c = *lexptr++)
{
case '\0':
error ("non-terminated string literal");
case '\n':
continue;
case '0':
case 'f':
case 'n':
case 'r':
case 't':
case 'a':
case 'v':
break;
}
}
return;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '.':
case '-':
case '+':
num:
{
str.ptr = lexptr - 1;
scm_read_token (c, 0);
if (!skipping)
{
svalue = scm_istring2number (str.ptr, lexptr - str.ptr, 10);
if (svalue != SCM_BOOL_F)
goto handle_immediate;
goto tok;
}
}
return;
case ':':
scm_read_token ('-', 0);
return;
#if 0
do_symbol:
#endif
default:
str.ptr = lexptr - 1;
scm_read_token (c, 0);
tok:
if (!skipping)
{
str.length = lexptr - str.ptr;
if (str.ptr[0] == '$')
{
write_dollar_variable (str);
return;
}
write_exp_elt_opcode (OP_NAME);
write_exp_string (str);
write_exp_elt_opcode (OP_NAME);
}
return;
}
handle_immediate:
if (!skipping)
{
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_scm);
write_exp_elt_longcst (svalue);
write_exp_elt_opcode (OP_LONG);
}
}
static int
arm_stap_parse_special_token (struct gdbarch *gdbarch,
struct stap_parse_info *p)
{
if (*p->arg == '[')
{
/* Temporary holder for lookahead. */
const char *tmp = p->arg;
char *endp;
/* Used to save the register name. */
const char *start;
char *regname;
int len, offset;
int got_minus = 0;
long displacement;
struct stoken str;
++tmp;
start = tmp;
/* Register name. */
while (isalnum (*tmp))
++tmp;
if (*tmp != ',')
return 0;
len = tmp - start;
regname = alloca (len + 2);
offset = 0;
if (isdigit (*start))
{
/* If we are dealing with a register whose name begins with a
digit, it means we should prefix the name with the letter
`r', because GDB expects this name pattern. Otherwise (e.g.,
we are dealing with the register `fp'), we don't need to
add such a prefix. */
regname[0] = 'r';
offset = 1;
}
strncpy (regname + offset, start, len);
len += offset;
regname[len] = '\0';
if (user_reg_map_name_to_regnum (gdbarch, regname, len) == -1)
error (_("Invalid register name `%s' on expression `%s'."),
regname, p->saved_arg);
++tmp;
tmp = skip_spaces_const (tmp);
if (*tmp++ != '#')
return 0;
if (*tmp == '-')
{
++tmp;
got_minus = 1;
}
displacement = strtol (tmp, &endp, 10);
tmp = endp;
/* Skipping last `]'. */
if (*tmp++ != ']')
return 0;
/* The displacement. */
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type (gdbarch)->builtin_long);
write_exp_elt_longcst (displacement);
write_exp_elt_opcode (OP_LONG);
if (got_minus)
write_exp_elt_opcode (UNOP_NEG);
/* The register name. */
write_exp_elt_opcode (OP_REGISTER);
str.ptr = regname;
str.length = len;
write_exp_string (str);
write_exp_elt_opcode (OP_REGISTER);
write_exp_elt_opcode (BINOP_ADD);
/* Casting to the expected type. */
write_exp_elt_opcode (UNOP_CAST);
write_exp_elt_type (lookup_pointer_type (p->arg_type));
write_exp_elt_opcode (UNOP_CAST);
write_exp_elt_opcode (UNOP_IND);
p->arg = tmp;
}
else
return 0;
return 1;
}
