/* Tracing functionality for remote targets in custom GDB protocol
- Copyright (C) 1997-2018 Free Software Foundation, Inc.
+ Copyright (C) 1997-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "cli/cli-utils.h"
#include "probe.h"
#include "ctf.h"
-#include "filestuff.h"
-#include "rsp-low.h"
+#include "common/filestuff.h"
+#include "common/rsp-low.h"
#include "tracefile.h"
#include "location.h"
#include <algorithm>
error (_("Expression is too complicated."));
}
+/* Call ax_reqs on AEXPR and raise an error if something is wrong. */
+
+static void
+finalize_tracepoint_aexpr (struct agent_expr *aexpr)
+{
+ ax_reqs (aexpr);
+
+ if (aexpr->len > MAX_AGENT_EXPR_LEN)
+ error (_("Expression is too complicated."));
+
+ report_agent_reqs_errors (aexpr);
+}
+
/* worker function */
void
validate_actionline (const char *line, struct breakpoint *b)
exp.get (),
trace_string);
- if (aexpr->len > MAX_AGENT_EXPR_LEN)
- error (_("Expression is too complicated."));
-
- ax_reqs (aexpr.get ());
-
- report_agent_reqs_errors (aexpr.get ());
+ finalize_tracepoint_aexpr (aexpr.get ());
}
}
while (p && *p++ == ',');
long. */
agent_expr_up aexpr = gen_eval_for_expr (loc->address, exp.get ());
- if (aexpr->len > MAX_AGENT_EXPR_LEN)
- error (_("Expression is too complicated."));
-
- ax_reqs (aexpr.get ());
- report_agent_reqs_errors (aexpr.get ());
+ finalize_tracepoint_aexpr (aexpr.get ());
}
}
while (p && *p++ == ',');
}
}
-/* Add a register to a collection list. */
+/* Add remote register number REGNO to the collection list mask. */
void
-collection_list::add_register (unsigned int regno)
+collection_list::add_remote_register (unsigned int regno)
{
if (info_verbose)
printf_filtered ("collect register %d\n", regno);
- if (regno >= (8 * sizeof (m_regs_mask)))
- error (_("Internal: register number %d too large for tracepoint"),
- regno);
- m_regs_mask[regno / 8] |= 1 << (regno % 8);
+
+ m_regs_mask.at (regno / 8) |= 1 << (regno % 8);
+}
+
+/* Add all the registers from the mask in AEXPR to the mask in the
+ collection list. Registers in the AEXPR mask are already remote
+ register numbers. */
+
+void
+collection_list::add_ax_registers (struct agent_expr *aexpr)
+{
+ if (aexpr->reg_mask_len > 0)
+ {
+ for (int ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
+ {
+ QUIT; /* Allow user to bail out with ^C. */
+ if (aexpr->reg_mask[ndx1] != 0)
+ {
+ /* Assume chars have 8 bits. */
+ for (int ndx2 = 0; ndx2 < 8; ndx2++)
+ if (aexpr->reg_mask[ndx1] & (1 << ndx2))
+ /* It's used -- record it. */
+ add_remote_register (ndx1 * 8 + ndx2);
+ }
+ }
+ }
+}
+
+/* If REGNO is raw, add its corresponding remote register number to
+ the mask. If REGNO is a pseudo-register, figure out the necessary
+ registers using a temporary agent expression, and add it to the
+ list if it needs more than just a mask. */
+
+void
+collection_list::add_local_register (struct gdbarch *gdbarch,
+ unsigned int regno,
+ CORE_ADDR scope)
+{
+ if (regno < gdbarch_num_regs (gdbarch))
+ {
+ int remote_regno = gdbarch_remote_register_number (gdbarch, regno);
+
+ if (remote_regno < 0)
+ error (_("Can't collect register %d"), regno);
+
+ add_remote_register (remote_regno);
+ }
+ else
+ {
+ agent_expr_up aexpr (new agent_expr (gdbarch, scope));
+
+ ax_reg_mask (aexpr.get (), regno);
+
+ finalize_tracepoint_aexpr (aexpr.get ());
+
+ add_ax_registers (aexpr.get ());
+
+ /* Usually ax_reg_mask for a pseudo-regiser only sets the
+ corresponding raw registers in the ax mask, but if this isn't
+ the case add the expression that is generated to the
+ collection list. */
+ if (aexpr->len > 0)
+ add_aexpr (std::move (aexpr));
+ }
}
/* Add a memrange to a collection list. */
void
collection_list::add_memrange (struct gdbarch *gdbarch,
int type, bfd_signed_vma base,
- unsigned long len)
+ unsigned long len, CORE_ADDR scope)
{
if (info_verbose)
printf_filtered ("(%d,%s,%ld)\n", type, paddress (gdbarch, base), len);
m_memranges.emplace_back (type, base, base + len);
if (type != memrange_absolute) /* Better collect the base register! */
- add_register (type);
+ add_local_register (gdbarch, type, scope);
}
/* Add a symbol to a collection list. */
if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT)
treat_as_expr = 1;
else
- add_memrange (gdbarch, memrange_absolute, offset, len);
+ add_memrange (gdbarch, memrange_absolute, offset, len, scope);
break;
case LOC_REGISTER:
reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch);
if (info_verbose)
printf_filtered ("LOC_REG[parm] %s: ",
SYMBOL_PRINT_NAME (sym));
- add_register (reg);
+ add_local_register (gdbarch, reg, scope);
/* Check for doubles stored in two registers. */
/* FIXME: how about larger types stored in 3 or more regs? */
if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT &&
len > register_size (gdbarch, reg))
- add_register (reg + 1);
+ add_local_register (gdbarch, reg + 1, scope);
break;
case LOC_REF_ARG:
printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
SYMBOL_PRINT_NAME (sym), len,
paddress (gdbarch, offset), reg);
}
- add_memrange (gdbarch, reg, offset, len);
+ add_memrange (gdbarch, reg, offset, len, scope);
break;
case LOC_REGPARM_ADDR:
reg = SYMBOL_VALUE (sym);
SYMBOL_PRINT_NAME (sym), len,
paddress (gdbarch, offset), reg);
}
- add_memrange (gdbarch, reg, offset, len);
+ add_memrange (gdbarch, reg, offset, len, scope);
break;
case LOC_LOCAL:
reg = frame_regno;
SYMBOL_PRINT_NAME (sym), len,
paddress (gdbarch, offset), reg);
}
- add_memrange (gdbarch, reg, offset, len);
+ add_memrange (gdbarch, reg, offset, len, scope);
break;
case LOC_UNRESOLVED:
return;
}
- ax_reqs (aexpr.get ());
-
- report_agent_reqs_errors (aexpr.get ());
+ finalize_tracepoint_aexpr (aexpr.get ());
/* Take care of the registers. */
- if (aexpr->reg_mask_len > 0)
- {
- for (int ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
- {
- QUIT; /* Allow user to bail out with ^C. */
- if (aexpr->reg_mask[ndx1] != 0)
- {
- /* Assume chars have 8 bits. */
- for (int ndx2 = 0; ndx2 < 8; ndx2++)
- if (aexpr->reg_mask[ndx1] & (1 << ndx2))
- /* It's used -- record it. */
- add_register (ndx1 * 8 + ndx2);
- }
- }
- }
+ add_ax_registers (aexpr.get ());
add_aexpr (std::move (aexpr));
}
}
collection_list::collection_list ()
- : m_regs_mask (),
- m_strace_data (false)
+ : m_strace_data (false)
{
+ int max_remote_regno = 0;
+ for (int i = 0; i < gdbarch_num_regs (target_gdbarch ()); i++)
+ {
+ int remote_regno = (gdbarch_remote_register_number
+ (target_gdbarch (), i));
+
+ if (remote_regno >= 0 && remote_regno > max_remote_regno)
+ max_remote_regno = remote_regno;
+ }
+
+ m_regs_mask.resize ((max_remote_regno / 8) + 1);
+
m_memranges.reserve (128);
m_aexprs.reserve (128);
}
std::vector<std::string>
collection_list::stringify ()
{
- char temp_buf[2048];
+ gdb::char_vector temp_buf (2048);
+
int count;
char *end;
long i;
{
if (info_verbose)
printf_filtered ("\nCollecting static trace data\n");
- end = temp_buf;
+ end = temp_buf.data ();
*end++ = 'L';
- str_list.emplace_back (temp_buf, end - temp_buf);
+ str_list.emplace_back (temp_buf.data (), end - temp_buf.data ());
}
- for (i = sizeof (m_regs_mask) - 1; i > 0; i--)
+ for (i = m_regs_mask.size () - 1; i > 0; i--)
if (m_regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */
break;
if (m_regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */
{
if (info_verbose)
printf_filtered ("\nCollecting registers (mask): 0x");
- end = temp_buf;
+
+ /* One char for 'R', one for the null terminator and two per
+ mask byte. */
+ std::size_t new_size = (i + 1) * 2 + 2;
+ if (new_size > temp_buf.size ())
+ temp_buf.resize (new_size);
+
+ end = temp_buf.data ();
*end++ = 'R';
for (; i >= 0; i--)
{
QUIT; /* Allow user to bail out with ^C. */
if (info_verbose)
printf_filtered ("%02X", m_regs_mask[i]);
- sprintf (end, "%02X", m_regs_mask[i]);
- end += 2;
+
+ end = pack_hex_byte (end, m_regs_mask[i]);
}
- str_list.emplace_back (temp_buf);
+ *end = '\0';
+
+ str_list.emplace_back (temp_buf.data ());
}
if (info_verbose)
printf_filtered ("\n");
if (!m_memranges.empty () && info_verbose)
printf_filtered ("Collecting memranges: \n");
- for (i = 0, count = 0, end = temp_buf; i < m_memranges.size (); i++)
+ for (i = 0, count = 0, end = temp_buf.data ();
+ i < m_memranges.size (); i++)
{
QUIT; /* Allow user to bail out with ^C. */
if (info_verbose)
}
if (count + 27 > MAX_AGENT_EXPR_LEN)
{
- str_list.emplace_back (temp_buf, count);
+ str_list.emplace_back (temp_buf.data (), count);
count = 0;
- end = temp_buf;
+ end = temp_buf.data ();
}
{
}
count += strlen (end);
- end = temp_buf + count;
+ end = temp_buf.data () + count;
}
for (i = 0; i < m_aexprs.size (); i++)
QUIT; /* Allow user to bail out with ^C. */
if ((count + 10 + 2 * m_aexprs[i]->len) > MAX_AGENT_EXPR_LEN)
{
- str_list.emplace_back (temp_buf, count);
+ str_list.emplace_back (temp_buf.data (), count);
count = 0;
- end = temp_buf;
+ end = temp_buf.data ();
}
sprintf (end, "X%08X,", m_aexprs[i]->len);
end += 10; /* 'X' + 8 hex digits + ',' */
if (count != 0)
{
- str_list.emplace_back (temp_buf, count);
+ str_list.emplace_back (temp_buf.data (), count);
count = 0;
- end = temp_buf;
+ end = temp_buf.data ();
}
return str_list;
if (0 == strncasecmp ("$reg", action_exp, 4))
{
- for (i = 0; i < gdbarch_num_regs (target_gdbarch ()); i++)
- collect->add_register (i);
+ for (i = 0; i < gdbarch_num_regs (target_gdbarch ());
+ i++)
+ {
+ int remote_regno = (gdbarch_remote_register_number
+ (target_gdbarch (), i));
+
+ /* Ignore arch regnos without a corresponding
+ remote regno. This can happen for regnos not
+ in the tdesc. */
+ if (remote_regno >= 0)
+ collect->add_remote_register (remote_regno);
+ }
action_exp = strchr (action_exp, ','); /* more? */
}
else if (0 == strncasecmp ("$arg", action_exp, 4))
target_gdbarch (),
trace_string);
- ax_reqs (aexpr.get ());
- report_agent_reqs_errors (aexpr.get ());
+ finalize_tracepoint_aexpr (aexpr.get ());
/* take care of the registers */
- if (aexpr->reg_mask_len > 0)
- {
- for (int ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
- {
- QUIT; /* allow user to bail out with ^C */
- if (aexpr->reg_mask[ndx1] != 0)
- {
- /* assume chars have 8 bits */
- for (int ndx2 = 0; ndx2 < 8; ndx2++)
- if (aexpr->reg_mask[ndx1] & (1 << ndx2))
- {
- /* It's used -- record it. */
- collect->add_register (ndx1 * 8 + ndx2);
- }
- }
- }
- }
+ collect->add_ax_registers (aexpr.get ());
collect->add_aexpr (std::move (aexpr));
action_exp = strchr (action_exp, ','); /* more? */
name);
if (info_verbose)
printf_filtered ("OP_REGISTER: ");
- collect->add_register (i);
+ collect->add_local_register (target_gdbarch (),
+ i, tloc->address);
break;
}
check_typedef (exp->elts[1].type);
collect->add_memrange (target_gdbarch (),
memrange_absolute, addr,
- TYPE_LENGTH (exp->elts[1].type));
+ TYPE_LENGTH (exp->elts[1].type),
+ tloc->address);
collect->append_exp (exp.get ());
break;
exp.get (),
trace_string);
- ax_reqs (aexpr.get ());
-
- report_agent_reqs_errors (aexpr.get ());
+ finalize_tracepoint_aexpr (aexpr.get ());
/* Take care of the registers. */
- if (aexpr->reg_mask_len > 0)
- {
- for (int ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
- {
- QUIT; /* Allow user to bail out with ^C. */
- if (aexpr->reg_mask[ndx1] != 0)
- {
- /* Assume chars have 8 bits. */
- for (int ndx2 = 0; ndx2 < 8; ndx2++)
- if (aexpr->reg_mask[ndx1] & (1 << ndx2))
- {
- /* It's used -- record it. */
- collect->add_register (ndx1 * 8 + ndx2);
- }
- }
- }
- }
+ collect->add_ax_registers (aexpr.get ());
collect->add_aexpr (std::move (aexpr));
collect->append_exp (exp.get ());
agent_expr_up aexpr = gen_eval_for_expr (tloc->address,
exp.get ());
- ax_reqs (aexpr.get ());
- report_agent_reqs_errors (aexpr.get ());
+ finalize_tracepoint_aexpr (aexpr.get ());
/* Even though we're not officially collecting, add
to the collect list anyway. */
void
start_tracing (const char *notes)
{
- struct trace_state_variable *tsv;
int any_enabled = 0, num_to_download = 0;
int ret;
if (args == 0 || *args == 0)
{ /* XXX FIXME: what should default behavior be? */
- printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
+ printf_filtered ("Usage: tfind range STARTADDR, ENDADDR\n");
return;
}
if (args == 0 || *args == 0)
{ /* XXX FIXME: what should default behavior be? */
- printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
+ printf_filtered ("Usage: tfind outside STARTADDR, ENDADDR\n");
return;
}
if (SYMBOL_COMPUTED_OPS (sym) != NULL)
SYMBOL_COMPUTED_OPS (sym)->describe_location (sym,
- BLOCK_START (block),
+ BLOCK_ENTRY_PC (block),
gdb_stdout);
else
{
case LOC_BLOCK:
printf_filtered ("a function at address ");
printf_filtered ("%s",
- paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym))));
+ paddress (gdbarch, BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym))));
break;
case LOC_UNRESOLVED:
msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym),
the fly, and don't cache it. */
if (*default_collect)
{
- struct command_line *default_collect_action;
gdb::unique_xmalloc_ptr<char> default_collect_line
(xstrprintf ("collect %s", default_collect));
if (b->type == utp->type
&& t->step_count == utp->step
&& t->pass_count == utp->pass
- && cond_string_is_same (t->cond_string, utp->cond_string)
+ && cond_string_is_same (t->cond_string,
+ utp->cond_string.get ())
/* FIXME also test actions. */
)
{
void
merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs)
{
- int ix;
struct uploaded_tsv *utsv;
- struct trace_state_variable *tsv;
int highest;
/* Most likely some numbers will have to be reassigned as part of
for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next)
{
- tsv = find_matching_tsv (utsv);
+ struct trace_state_variable *tsv = find_matching_tsv (utsv);
if (tsv)
{
if (info_verbose)
int enabled, end;
enum bptype type;
const char *srctype;
- char *cond, *buf;
+ char *buf;
struct uploaded_tp *utp = NULL;
p = line;
p++; /* skip a colon */
if (piece == 'T')
{
+ gdb::unique_xmalloc_ptr<char[]> cond;
+
enabled = (*p++ == 'E');
p++; /* skip a colon */
p = unpack_varlen_hex (p, &step);
p++; /* skip a colon */
p = unpack_varlen_hex (p, &pass);
type = bp_tracepoint;
- cond = NULL;
/* Thumb through optional fields. */
while (*p == ':')
{
p++;
p = unpack_varlen_hex (p, &xlen);
p++; /* skip a comma */
- cond = (char *) xmalloc (2 * xlen + 1);
- strncpy (cond, p, 2 * xlen);
+ cond.reset ((char *) xmalloc (2 * xlen + 1));
+ strncpy (&cond[0], p, 2 * xlen);
cond[2 * xlen] = '\0';
p += 2 * xlen;
}
utp->enabled = enabled;
utp->step = step;
utp->pass = pass;
- utp->cond = cond;
+ utp->cond = std::move (cond);
}
else if (piece == 'A')
{
utp = get_uploaded_tp (num, addr, utpp);
- utp->actions.push_back (xstrdup (p));
+ utp->actions.emplace_back (xstrdup (p));
}
else if (piece == 'S')
{
utp = get_uploaded_tp (num, addr, utpp);
- utp->step_actions.push_back (xstrdup (p));
+ utp->step_actions.emplace_back (xstrdup (p));
}
else if (piece == 'Z')
{
buf[end] = '\0';
if (startswith (srctype, "at:"))
- utp->at_string = xstrdup (buf);
+ utp->at_string.reset (xstrdup (buf));
else if (startswith (srctype, "cond:"))
- utp->cond_string = xstrdup (buf);
+ utp->cond_string.reset (xstrdup (buf));
else if (startswith (srctype, "cmd:"))
- utp->cmd_strings.push_back (xstrdup (buf));
+ utp->cmd_strings.emplace_back (xstrdup (buf));
}
else if (piece == 'V')
{
if (sym)
{
uiout->text ("in ");
- uiout->field_string ("func",
- SYMBOL_PRINT_NAME (sym));
+ uiout->field_string ("func", SYMBOL_PRINT_NAME (sym),
+ ui_out_style_kind::FUNCTION);
uiout->wrap_hint (wrap_indent);
uiout->text (" at ");
}
if (sal.symtab != NULL)
{
uiout->field_string ("file",
- symtab_to_filename_for_display (sal.symtab));
+ symtab_to_filename_for_display (sal.symtab),
+ ui_out_style_kind::FILE);
uiout->text (":");
if (uiout->is_mi_like_p ())
if (!tracepoints.empty ())
{
int ix;
- struct breakpoint *b;
{
- ui_out_emit_tuple tuple_emitter (uiout, "tracepoints-at");
+ ui_out_emit_tuple inner_tuple_emitter (uiout, "tracepoints-at");
uiout->text (extra_field_indent);
uiout->text (_("Probed by static tracepoints: "));
NULL
};
+/* See tracepoint.h. */
+cmd_list_element *while_stepping_cmd_element = nullptr;
+
/* module initialization */
void
_initialize_tracepoint (void)
add_cmd ("outside", class_trace, tfind_outside_command, _("\
Select a trace frame whose PC is outside the given range (exclusive).\n\
-Usage: tfind outside addr1, addr2"),
+Usage: tfind outside ADDR1, ADDR2"),
&tfindlist);
add_cmd ("range", class_trace, tfind_range_command, _("\
Select a trace frame whose PC is in the given range (inclusive).\n\
-Usage: tfind range addr1,addr2"),
+Usage: tfind range ADDR1, ADDR2"),
&tfindlist);
add_cmd ("line", class_trace, tfind_line_command, _("\
such a list.\n\n\
Note: the \"end\" command cannot be used at the gdb prompt."));
- add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\
+ while_stepping_cmd_element = add_com ("while-stepping", class_trace,
+ while_stepping_pseudocommand, _("\
Specify single-stepping behavior at a tracepoint.\n\
Argument is number of instructions to trace in single-step mode\n\
following the tracepoint. This command is normally followed by\n\
projects / deliverable / binutils-gdb.git / blobdiff