/* Tracing functionality for remote targets in custom GDB protocol
- Copyright (C) 1997-2014 Free Software Foundation, Inc.
+ Copyright (C) 1997-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "target-dcache.h"
#include "language.h"
-#include <string.h>
#include "inferior.h"
#include "breakpoint.h"
#include "tracepoint.h"
#include "ax.h"
#include "ax-gdb.h"
#include "memrange.h"
-#include "exceptions.h"
#include "cli/cli-utils.h"
#include "probe.h"
#include "ctf.h"
#include "filestuff.h"
#include "rsp-low.h"
#include "tracefile.h"
+#include "location.h"
+#include <algorithm>
/* readline include files */
#include "readline/readline.h"
#include <unistd.h>
-#ifndef O_LARGEFILE
-#define O_LARGEFILE 0
-#endif
-
/* Maximum length of an agent aexpression.
This accounts for the fact that packets are limited to 400 bytes
(which includes everything -- including the checksum), and assumes
large. (400 - 31)/2 == 184 */
#define MAX_AGENT_EXPR_LEN 184
-#define TFILE_PID (1)
-
/* A hook used to notify the UI of tracepoint operations. */
void (*deprecated_trace_find_hook) (char *arg, int from_tty);
/* support routines */
struct collection_list;
-static void add_aexpr (struct collection_list *, struct agent_expr *);
static char *mem2hex (gdb_byte *, char *, int);
-static void add_register (struct collection_list *collection,
- unsigned int regno);
static struct command_line *
all_tracepoint_actions_and_cleanup (struct breakpoint *t);
struct tracepoint *t;
struct command_line *l;
- t = get_tracepoint_by_number (&args, NULL, 1);
+ t = get_tracepoint_by_number (&args, NULL);
if (t)
{
char *tmpbuf =
validate_actionline (const char *line, struct breakpoint *b)
{
struct cmd_list_element *c;
- struct expression *exp = NULL;
struct cleanup *old_chain = NULL;
const char *tmp_p;
const char *p;
for (loc = t->base.loc; loc; loc = loc->next)
{
p = tmp_p;
- exp = parse_exp_1 (&p, loc->address,
- block_for_pc (loc->address), 1);
- old_chain = make_cleanup (free_current_contents, &exp);
+ expression_up exp = parse_exp_1 (&p, loc->address,
+ block_for_pc (loc->address), 1);
if (exp->elts[0].opcode == OP_VAR_VALUE)
{
/* We have something to collect, make sure that the expr to
bytecode translator can handle it and that it's not too
long. */
- aexpr = gen_trace_for_expr (loc->address, exp, trace_string);
- make_cleanup_free_agent_expr (aexpr);
+ aexpr = gen_trace_for_expr (loc->address, exp.get (), trace_string);
+ old_chain = make_cleanup_free_agent_expr (aexpr);
if (aexpr->len > MAX_AGENT_EXPR_LEN)
error (_("Expression is too complicated."));
p = tmp_p;
/* Only expressions are allowed for this action. */
- exp = parse_exp_1 (&p, loc->address,
- block_for_pc (loc->address), 1);
- old_chain = make_cleanup (free_current_contents, &exp);
+ expression_up exp = parse_exp_1 (&p, loc->address,
+ block_for_pc (loc->address), 1);
/* We have something to evaluate, make sure that the expr to
bytecode translator can handle it and that it's not too
long. */
- aexpr = gen_eval_for_expr (loc->address, exp);
- make_cleanup_free_agent_expr (aexpr);
+ aexpr = gen_eval_for_expr (loc->address, exp.get ());
+ old_chain = make_cleanup_free_agent_expr (aexpr);
if (aexpr->len > MAX_AGENT_EXPR_LEN)
error (_("Expression is too complicated."));
/* MEMRANGE functions: */
-static int memrange_cmp (const void *, const void *);
+/* Compare memranges for std::sort. */
-/* Compare memranges for qsort. */
-static int
-memrange_cmp (const void *va, const void *vb)
+static bool
+memrange_comp (const memrange &a, const memrange &b)
{
- const struct memrange *a = va, *b = vb;
-
- if (a->type < b->type)
- return -1;
- if (a->type > b->type)
- return 1;
- if (a->type == memrange_absolute)
+ if (a.type == b.type)
{
- if ((bfd_vma) a->start < (bfd_vma) b->start)
- return -1;
- if ((bfd_vma) a->start > (bfd_vma) b->start)
- return 1;
- }
- else
- {
- if (a->start < b->start)
- return -1;
- if (a->start > b->start)
- return 1;
+ if (a.type == memrange_absolute)
+ return (bfd_vma) a.start < (bfd_vma) b.start;
+ else
+ return a.start < b.start;
}
- return 0;
+
+ return a.type < b.type;
}
-/* Sort the memrange list using qsort, and merge adjacent memranges. */
+/* Sort the memrange list using std::sort, and merge adjacent memranges. */
+
static void
-memrange_sortmerge (struct collection_list *memranges)
+memrange_sortmerge (std::vector<memrange> &memranges)
{
- int a, b;
-
- qsort (memranges->list, memranges->next_memrange,
- sizeof (struct memrange), memrange_cmp);
- if (memranges->next_memrange > 0)
+ if (!memranges.empty ())
{
- for (a = 0, b = 1; b < memranges->next_memrange; b++)
+ int a, b;
+
+ std::sort (memranges.begin (), memranges.end (), memrange_comp);
+
+ for (a = 0, b = 1; b < memranges.size (); b++)
{
/* If memrange b overlaps or is adjacent to memrange a,
merge them. */
- if (memranges->list[a].type == memranges->list[b].type
- && memranges->list[b].start <= memranges->list[a].end)
+ if (memranges[a].type == memranges[b].type
+ && memranges[b].start <= memranges[a].end)
{
- if (memranges->list[b].end > memranges->list[a].end)
- memranges->list[a].end = memranges->list[b].end;
+ if (memranges[b].end > memranges[a].end)
+ memranges[a].end = memranges[b].end;
continue; /* next b, same a */
}
a++; /* next a */
if (a != b)
- memcpy (&memranges->list[a], &memranges->list[b],
- sizeof (struct memrange));
+ memranges[a] = memranges[b];
}
- memranges->next_memrange = a + 1;
+ memranges.resize (a + 1);
}
}
/* Add a register to a collection list. */
-static void
-add_register (struct collection_list *collection, unsigned int regno)
+
+void
+collection_list::add_register (unsigned int regno)
{
if (info_verbose)
printf_filtered ("collect register %d\n", regno);
- if (regno >= (8 * sizeof (collection->regs_mask)))
+ if (regno >= (8 * sizeof (m_regs_mask)))
error (_("Internal: register number %d too large for tracepoint"),
regno);
- collection->regs_mask[regno / 8] |= 1 << (regno % 8);
+ m_regs_mask[regno / 8] |= 1 << (regno % 8);
}
/* Add a memrange to a collection list. */
-static void
-add_memrange (struct collection_list *memranges,
- int type, bfd_signed_vma base,
- unsigned long len)
+
+void
+collection_list::add_memrange (int type, bfd_signed_vma base,
+ unsigned long len)
{
if (info_verbose)
{
}
/* type: memrange_absolute == memory, other n == basereg */
- memranges->list[memranges->next_memrange].type = type;
/* base: addr if memory, offset if reg relative. */
- memranges->list[memranges->next_memrange].start = base;
/* len: we actually save end (base + len) for convenience */
- memranges->list[memranges->next_memrange].end = base + len;
- memranges->next_memrange++;
- if (memranges->next_memrange >= memranges->listsize)
- {
- memranges->listsize *= 2;
- memranges->list = xrealloc (memranges->list,
- memranges->listsize);
- }
+ m_memranges.push_back (memrange (type, base, base + len));
if (type != memrange_absolute) /* Better collect the base register! */
- add_register (memranges, type);
+ add_register (type);
}
/* Add a symbol to a collection list. */
-static void
-collect_symbol (struct collection_list *collect,
- struct symbol *sym,
- struct gdbarch *gdbarch,
- long frame_regno, long frame_offset,
- CORE_ADDR scope,
- int trace_string)
+
+void
+collection_list::collect_symbol (struct symbol *sym,
+ struct gdbarch *gdbarch,
+ long frame_regno, long frame_offset,
+ CORE_ADDR scope,
+ int trace_string)
{
unsigned long len;
unsigned int reg;
if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT)
treat_as_expr = 1;
else
- add_memrange (collect, memrange_absolute, offset, len);
+ add_memrange (memrange_absolute, offset, len);
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 (collect, reg);
+ add_register (reg);
/* 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 (collect, reg + 1);
+ add_register (reg + 1);
break;
case LOC_REF_ARG:
printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
printf_vma (offset);
printf_filtered (" from frame ptr reg %d\n", reg);
}
- add_memrange (collect, reg, offset, len);
+ add_memrange (reg, offset, len);
break;
case LOC_REGPARM_ADDR:
reg = SYMBOL_VALUE (sym);
printf_vma (offset);
printf_filtered (" from reg %d\n", reg);
}
- add_memrange (collect, reg, offset, len);
+ add_memrange (reg, offset, len);
break;
case LOC_LOCAL:
reg = frame_regno;
printf_vma (offset);
printf_filtered (" from frame ptr reg %d\n", reg);
}
- add_memrange (collect, reg, offset, len);
+ add_memrange (reg, offset, len);
break;
case LOC_UNRESOLVED:
report_agent_reqs_errors (aexpr);
discard_cleanups (old_chain1);
- add_aexpr (collect, aexpr);
+ add_aexpr (aexpr);
/* Take care of the registers. */
if (aexpr->reg_mask_len > 0)
for (ndx2 = 0; ndx2 < 8; ndx2++)
if (aexpr->reg_mask[ndx1] & (1 << ndx2))
/* It's used -- record it. */
- add_register (collect, ndx1 * 8 + ndx2);
+ add_register (ndx1 * 8 + ndx2);
}
}
}
struct symbol *sym,
void *cb_data)
{
- struct add_local_symbols_data *p = cb_data;
+ struct add_local_symbols_data *p = (struct add_local_symbols_data *) cb_data;
- collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno,
- p->frame_offset, p->pc, p->trace_string);
+ p->collect->collect_symbol (sym, p->gdbarch, p->frame_regno,
+ p->frame_offset, p->pc, p->trace_string);
p->count++;
- VEC_safe_push (char_ptr, p->collect->wholly_collected,
- xstrdup (print_name));
+ p->collect->add_wholly_collected (print_name);
+}
+
+void
+collection_list::add_wholly_collected (const char *print_name)
+{
+ m_wholly_collected.push_back (print_name);
}
/* Add all locals (or args) symbols to collection list. */
-static void
-add_local_symbols (struct collection_list *collect,
- struct gdbarch *gdbarch, CORE_ADDR pc,
- long frame_regno, long frame_offset, int type,
- int trace_string)
+
+void
+collection_list::add_local_symbols (struct gdbarch *gdbarch, CORE_ADDR pc,
+ long frame_regno, long frame_offset, int type,
+ int trace_string)
{
- struct block *block;
+ const struct block *block;
struct add_local_symbols_data cb_data;
- cb_data.collect = collect;
+ cb_data.collect = this;
cb_data.gdbarch = gdbarch;
cb_data.pc = pc;
cb_data.frame_regno = frame_regno;
}
}
-static void
-add_static_trace_data (struct collection_list *collection)
+void
+collection_list::add_static_trace_data ()
{
if (info_verbose)
printf_filtered ("collect static trace data\n");
- collection->strace_data = 1;
+ m_strace_data = true;
}
-/* worker function */
-static void
-clear_collection_list (struct collection_list *list)
+collection_list::collection_list ()
+ : m_regs_mask (),
+ m_strace_data (false)
{
- int ndx;
-
- list->next_memrange = 0;
- for (ndx = 0; ndx < list->next_aexpr_elt; ndx++)
- {
- free_agent_expr (list->aexpr_list[ndx]);
- list->aexpr_list[ndx] = NULL;
- }
- list->next_aexpr_elt = 0;
- memset (list->regs_mask, 0, sizeof (list->regs_mask));
- list->strace_data = 0;
-
- xfree (list->aexpr_list);
- xfree (list->list);
-
- VEC_free (char_ptr, list->wholly_collected);
- VEC_free (char_ptr, list->computed);
-}
-
-/* A cleanup wrapper for function clear_collection_list. */
-
-static void
-do_clear_collection_list (void *list)
-{
- struct collection_list *l = list;
-
- clear_collection_list (l);
+ m_memranges.reserve (128);
+ m_aexprs.reserve (128);
}
-/* Initialize collection_list CLIST. */
-
-static void
-init_collection_list (struct collection_list *clist)
+collection_list::~collection_list ()
{
- memset (clist, 0, sizeof *clist);
-
- clist->listsize = 128;
- clist->list = xcalloc (clist->listsize,
- sizeof (struct memrange));
-
- clist->aexpr_listsize = 128;
- clist->aexpr_list = xcalloc (clist->aexpr_listsize,
- sizeof (struct agent_expr *));
+ for (int ndx = 0; ndx < m_aexprs.size (); ndx++)
+ free_agent_expr (m_aexprs[ndx]);
}
/* Reduce a collection list to string form (for gdb protocol). */
-static char **
-stringify_collection_list (struct collection_list *list)
+
+char **
+collection_list::stringify ()
{
char temp_buf[2048];
char tmp2[40];
char *end;
long i;
- count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1;
+ count = 1 + 1 + m_memranges.size () + m_aexprs.size () + 1;
str_list = (char *(*)[]) xmalloc (count * sizeof (char *));
- if (list->strace_data)
+ if (m_strace_data)
{
if (info_verbose)
printf_filtered ("\nCollecting static trace data\n");
ndx++;
}
- for (i = sizeof (list->regs_mask) - 1; i > 0; i--)
- if (list->regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */
+ for (i = sizeof (m_regs_mask) - 1; i > 0; i--)
+ if (m_regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */
break;
- if (list->regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */
+ if (m_regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */
{
if (info_verbose)
printf_filtered ("\nCollecting registers (mask): 0x");
{
QUIT; /* Allow user to bail out with ^C. */
if (info_verbose)
- printf_filtered ("%02X", list->regs_mask[i]);
- sprintf (end, "%02X", list->regs_mask[i]);
+ printf_filtered ("%02X", m_regs_mask[i]);
+ sprintf (end, "%02X", m_regs_mask[i]);
end += 2;
}
(*str_list)[ndx] = xstrdup (temp_buf);
}
if (info_verbose)
printf_filtered ("\n");
- if (list->next_memrange > 0 && info_verbose)
+ if (!m_memranges.empty () && info_verbose)
printf_filtered ("Collecting memranges: \n");
- for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++)
+ for (i = 0, count = 0, end = temp_buf; i < m_memranges.size (); i++)
{
QUIT; /* Allow user to bail out with ^C. */
- sprintf_vma (tmp2, list->list[i].start);
+ sprintf_vma (tmp2, m_memranges[i].start);
if (info_verbose)
{
printf_filtered ("(%d, %s, %ld)\n",
- list->list[i].type,
+ m_memranges[i].type,
tmp2,
- (long) (list->list[i].end - list->list[i].start));
+ (long) (m_memranges[i].end
+ - m_memranges[i].start));
}
if (count + 27 > MAX_AGENT_EXPR_LEN)
{
}
{
- bfd_signed_vma length = list->list[i].end - list->list[i].start;
+ bfd_signed_vma length
+ = m_memranges[i].end - m_memranges[i].start;
/* The "%X" conversion specifier expects an unsigned argument,
so passing -1 (memrange_absolute) to it directly gives you
"FFFFFFFF" (or more, depending on sizeof (unsigned)).
Special-case it. */
- if (list->list[i].type == memrange_absolute)
+ if (m_memranges[i].type == memrange_absolute)
sprintf (end, "M-1,%s,%lX", tmp2, (long) length);
else
- sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length);
+ sprintf (end, "M%X,%s,%lX", m_memranges[i].type, tmp2, (long) length);
}
count += strlen (end);
end = temp_buf + count;
}
- for (i = 0; i < list->next_aexpr_elt; i++)
+ for (i = 0; i < m_aexprs.size (); i++)
{
QUIT; /* Allow user to bail out with ^C. */
- if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN)
+ if ((count + 10 + 2 * m_aexprs[i]->len) > MAX_AGENT_EXPR_LEN)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
count = 0;
end = temp_buf;
}
- sprintf (end, "X%08X,", list->aexpr_list[i]->len);
+ sprintf (end, "X%08X,", m_aexprs[i]->len);
end += 10; /* 'X' + 8 hex digits + ',' */
count += 10;
- end = mem2hex (list->aexpr_list[i]->buf,
- end, list->aexpr_list[i]->len);
- count += 2 * list->aexpr_list[i]->len;
+ end = mem2hex (m_aexprs[i]->buf, end, m_aexprs[i]->len);
+ count += 2 * m_aexprs[i]->len;
}
if (count != 0)
/* Add the printed expression EXP to *LIST. */
-static void
-append_exp (struct expression *exp, VEC(char_ptr) **list)
+void
+collection_list::append_exp (struct expression *exp)
{
struct ui_file *tmp_stream = mem_fileopen ();
- char *text;
print_expression (exp, tmp_stream);
- text = ui_file_xstrdup (tmp_stream, NULL);
-
- VEC_safe_push (char_ptr, *list, text);
+ m_computed.push_back (ui_file_as_string (tmp_stream));
ui_file_delete (tmp_stream);
}
+void
+collection_list::finish ()
+{
+ memrange_sortmerge (m_memranges);
+}
+
static void
encode_actions_1 (struct command_line *action,
struct bp_location *tloc,
struct collection_list *stepping_list)
{
const char *action_exp;
- struct expression *exp = NULL;
int i;
struct value *tempval;
struct cmd_list_element *cmd;
if (0 == strncasecmp ("$reg", action_exp, 4))
{
- for (i = 0; i < gdbarch_num_regs (tloc->gdbarch); i++)
- add_register (collect, i);
+ for (i = 0; i < gdbarch_num_regs (target_gdbarch ()); i++)
+ collect->add_register (i);
action_exp = strchr (action_exp, ','); /* more? */
}
else if (0 == strncasecmp ("$arg", action_exp, 4))
{
- add_local_symbols (collect,
- tloc->gdbarch,
- tloc->address,
- frame_reg,
- frame_offset,
- 'A',
- trace_string);
+ collect->add_local_symbols (target_gdbarch (),
+ tloc->address,
+ frame_reg,
+ frame_offset,
+ 'A',
+ trace_string);
action_exp = strchr (action_exp, ','); /* more? */
}
else if (0 == strncasecmp ("$loc", action_exp, 4))
{
- add_local_symbols (collect,
- tloc->gdbarch,
- tloc->address,
- frame_reg,
- frame_offset,
- 'L',
- trace_string);
+ collect->add_local_symbols (target_gdbarch (),
+ tloc->address,
+ frame_reg,
+ frame_offset,
+ 'L',
+ trace_string);
action_exp = strchr (action_exp, ','); /* more? */
}
else if (0 == strncasecmp ("$_ret", action_exp, 5))
struct cleanup *old_chain1 = NULL;
aexpr = gen_trace_for_return_address (tloc->address,
- tloc->gdbarch,
+ target_gdbarch (),
trace_string);
old_chain1 = make_cleanup_free_agent_expr (aexpr);
report_agent_reqs_errors (aexpr);
discard_cleanups (old_chain1);
- add_aexpr (collect, aexpr);
+ collect->add_aexpr (aexpr);
/* take care of the registers */
if (aexpr->reg_mask_len > 0)
/* assume chars have 8 bits */
for (ndx2 = 0; ndx2 < 8; ndx2++)
if (aexpr->reg_mask[ndx1] & (1 << ndx2))
- /* it's used -- record it */
- add_register (collect,
- ndx1 * 8 + ndx2);
+ {
+ /* It's used -- record it. */
+ collect->add_register (ndx1 * 8 + ndx2);
+ }
}
}
}
}
else if (0 == strncasecmp ("$_sdata", action_exp, 7))
{
- add_static_trace_data (collect);
+ collect->add_static_trace_data ();
action_exp = strchr (action_exp, ','); /* more? */
}
else
{
unsigned long addr;
- struct cleanup *old_chain = NULL;
struct cleanup *old_chain1 = NULL;
- exp = parse_exp_1 (&action_exp, tloc->address,
- block_for_pc (tloc->address), 1);
- old_chain = make_cleanup (free_current_contents, &exp);
+ expression_up exp = parse_exp_1 (&action_exp, tloc->address,
+ block_for_pc (tloc->address),
+ 1);
switch (exp->elts[0].opcode)
{
{
const char *name = &exp->elts[2].string;
- i = user_reg_map_name_to_regnum (tloc->gdbarch,
+ i = user_reg_map_name_to_regnum (target_gdbarch (),
name, strlen (name));
if (i == -1)
internal_error (__FILE__, __LINE__,
name);
if (info_verbose)
printf_filtered ("OP_REGISTER: ");
- add_register (collect, i);
+ collect->add_register (i);
break;
}
case UNOP_MEMVAL:
/* Safe because we know it's a simple expression. */
- tempval = evaluate_expression (exp);
+ tempval = evaluate_expression (exp.get ());
addr = value_address (tempval);
/* Initialize the TYPE_LENGTH if it is a typedef. */
check_typedef (exp->elts[1].type);
- add_memrange (collect, memrange_absolute, addr,
- TYPE_LENGTH (exp->elts[1].type));
- append_exp (exp, &collect->computed);
+ collect->add_memrange (memrange_absolute, addr,
+ TYPE_LENGTH (exp->elts[1].type));
+ collect->append_exp (exp.get ());
break;
case OP_VAR_VALUE:
struct symbol *sym = exp->elts[2].symbol;
char_ptr name = (char_ptr) SYMBOL_NATURAL_NAME (sym);
- collect_symbol (collect,
- exp->elts[2].symbol,
- tloc->gdbarch,
- frame_reg,
- frame_offset,
- tloc->address,
- trace_string);
- VEC_safe_push (char_ptr,
- collect->wholly_collected,
- name);
+ collect->collect_symbol (exp->elts[2].symbol,
+ target_gdbarch (),
+ frame_reg,
+ frame_offset,
+ tloc->address,
+ trace_string);
+ collect->add_wholly_collected (name);
}
break;
default: /* Full-fledged expression. */
- aexpr = gen_trace_for_expr (tloc->address, exp,
+ aexpr = gen_trace_for_expr (tloc->address, exp.get (),
trace_string);
old_chain1 = make_cleanup_free_agent_expr (aexpr);
report_agent_reqs_errors (aexpr);
discard_cleanups (old_chain1);
- add_aexpr (collect, aexpr);
+ collect->add_aexpr (aexpr);
/* Take care of the registers. */
if (aexpr->reg_mask_len > 0)
/* Assume chars have 8 bits. */
for (ndx2 = 0; ndx2 < 8; ndx2++)
if (aexpr->reg_mask[ndx1] & (1 << ndx2))
- /* It's used -- record it. */
- add_register (collect,
- ndx1 * 8 + ndx2);
+ {
+ /* It's used -- record it. */
+ collect->add_register (ndx1 * 8 + ndx2);
+ }
}
}
}
- append_exp (exp, &collect->computed);
+ collect->append_exp (exp.get ());
break;
} /* switch */
- do_cleanups (old_chain);
} /* do */
}
while (action_exp && *action_exp++ == ',');
action_exp = skip_spaces_const (action_exp);
{
- struct cleanup *old_chain = NULL;
struct cleanup *old_chain1 = NULL;
- exp = parse_exp_1 (&action_exp, tloc->address,
- block_for_pc (tloc->address), 1);
- old_chain = make_cleanup (free_current_contents, &exp);
+ expression_up exp = parse_exp_1 (&action_exp, tloc->address,
+ block_for_pc (tloc->address),
+ 1);
- aexpr = gen_eval_for_expr (tloc->address, exp);
+ aexpr = gen_eval_for_expr (tloc->address, exp.get ());
old_chain1 = make_cleanup_free_agent_expr (aexpr);
ax_reqs (aexpr);
discard_cleanups (old_chain1);
/* Even though we're not officially collecting, add
to the collect list anyway. */
- add_aexpr (collect, aexpr);
-
- do_cleanups (old_chain);
+ collect->add_aexpr (aexpr);
} /* do */
}
while (action_exp && *action_exp++ == ',');
}
/* Encode actions of tracepoint TLOC->owner and fill TRACEPOINT_LIST
- and STEPPING_LIST. Return a cleanup pointer to clean up both
- TRACEPOINT_LIST and STEPPING_LIST. */
+ and STEPPING_LIST. */
-struct cleanup *
-encode_actions_and_make_cleanup (struct bp_location *tloc,
- struct collection_list *tracepoint_list,
- struct collection_list *stepping_list)
+void
+encode_actions (struct bp_location *tloc,
+ struct collection_list *tracepoint_list,
+ struct collection_list *stepping_list)
{
- char *default_collect_line = NULL;
struct command_line *actions;
- struct command_line *default_collect_action = NULL;
int frame_reg;
LONGEST frame_offset;
- struct cleanup *back_to, *return_chain;
-
- return_chain = make_cleanup (null_cleanup, NULL);
- init_collection_list (tracepoint_list);
- init_collection_list (stepping_list);
- make_cleanup (do_clear_collection_list, tracepoint_list);
- make_cleanup (do_clear_collection_list, stepping_list);
-
- back_to = make_cleanup (null_cleanup, NULL);
gdbarch_virtual_frame_pointer (tloc->gdbarch,
tloc->address, &frame_reg, &frame_offset);
encode_actions_1 (actions, tloc, frame_reg, frame_offset,
tracepoint_list, stepping_list);
- memrange_sortmerge (tracepoint_list);
- memrange_sortmerge (stepping_list);
-
- do_cleanups (back_to);
- return return_chain;
+ tracepoint_list->finish ();
+ stepping_list->finish ();
}
/* Render all actions into gdb protocol. */
char ***stepping_actions)
{
struct collection_list tracepoint_list, stepping_list;
- struct cleanup *cleanup;
*tdp_actions = NULL;
*stepping_actions = NULL;
- cleanup = encode_actions_and_make_cleanup (tloc, &tracepoint_list,
- &stepping_list);
-
- *tdp_actions = stringify_collection_list (&tracepoint_list);
- *stepping_actions = stringify_collection_list (&stepping_list);
+ encode_actions (tloc, &tracepoint_list, &stepping_list);
- do_cleanups (cleanup);
+ *tdp_actions = tracepoint_list.stringify ();
+ *stepping_actions = stepping_list.stringify ();
}
-static void
-add_aexpr (struct collection_list *collect, struct agent_expr *aexpr)
+void
+collection_list::add_aexpr (struct agent_expr *aexpr)
{
- if (collect->next_aexpr_elt >= collect->aexpr_listsize)
- {
- collect->aexpr_list =
- xrealloc (collect->aexpr_list,
- 2 * collect->aexpr_listsize * sizeof (struct agent_expr *));
- collect->aexpr_listsize *= 2;
- }
- collect->aexpr_list[collect->next_aexpr_elt] = aexpr;
- collect->next_aexpr_elt++;
+ m_aexprs.push_back (aexpr);
}
static void
for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
{
- struct tracepoint *t = (struct tracepoint *) b;
- struct bp_location *loc;
-
if (b->enable_state == bp_enabled)
any_enabled = 1;
t->number_on_target = b->number;
for (loc = b->loc; loc; loc = loc->next)
- if (loc->probe != NULL)
- loc->probe->pops->set_semaphore (loc->probe, loc->gdbarch);
+ if (loc->probe.probe != NULL
+ && loc->probe.probe->pops->set_semaphore != NULL)
+ loc->probe.probe->pops->set_semaphore (loc->probe.probe,
+ loc->probe.objfile,
+ loc->gdbarch);
if (bp_location_downloaded)
observer_notify_breakpoint_modified (b);
but we don't really care if this semaphore goes out of sync.
That's why we are decrementing it here, but not taking care
in other places. */
- if (loc->probe != NULL)
- loc->probe->pops->clear_semaphore (loc->probe, loc->gdbarch);
+ if (loc->probe.probe != NULL
+ && loc->probe.probe->pops->clear_semaphore != NULL)
+ loc->probe.probe->pops->clear_semaphore (loc->probe.probe,
+ loc->probe.objfile,
+ loc->gdbarch);
}
}
}
}
+/* Error on looking at traceframes while trace is running. */
+
+void
+check_trace_running (struct trace_status *status)
+{
+ if (status->running && status->filename == NULL)
+ error (_("May not look at trace frames while trace is running."));
+}
+
/* trace_find_command takes a trace frame number n,
sends "QTFrame:<n>" to the target,
and accepts a reply that may contain several optional pieces
{ /* This should only be called with a numeric argument. */
int frameno = -1;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{ /* TFIND with no args means find NEXT trace frame. */
{
CORE_ADDR pc;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
pc = regcache_read_pc (get_current_regcache ());
int tdp;
struct tracepoint *tp;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{
struct symtab_and_line sal;
struct cleanup *old_chain;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{
sal = find_pc_line (get_frame_pc (get_current_frame ()), 0);
sals.nelts = 1;
- sals.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
+ sals.sals = XNEW (struct symtab_and_line);
sals.sals[0] = sal;
}
else
static CORE_ADDR start, stop;
char *tmp;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{ /* XXX FIXME: what should default behavior be? */
{
struct symtabs_and_lines sals;
struct symbol *sym;
- struct minimal_symbol *msym;
- struct block *block;
+ struct bound_minimal_symbol msym;
+ const struct block *block;
const char *symname;
char *save_args = args;
struct block_iterator iter;
int j, count = 0;
struct gdbarch *gdbarch;
int regno;
+ struct event_location *location;
+ struct cleanup *back_to;
if (args == 0 || *args == 0)
error (_("requires an argument (function, "
"line or *addr) to define a scope"));
- sals = decode_line_1 (&args, DECODE_LINE_FUNFIRSTLINE, NULL, 0);
+ location = string_to_event_location (&args, current_language);
+ back_to = make_cleanup_delete_event_location (location);
+ sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE, NULL, NULL, 0);
if (sals.nelts == 0)
- return; /* Presumably decode_line_1 has already warned. */
+ {
+ /* Presumably decode_line_1 has already warned. */
+ do_cleanups (back_to);
+ return;
+ }
/* Resolve line numbers to PC. */
resolve_sal_pc (&sals.sals[0]);
if (symname == NULL || *symname == '\0')
continue; /* Probably botched, certainly useless. */
- gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile);
+ gdbarch = symbol_arch (sym);
printf_filtered ("Symbol %s is ", symname);
case LOC_UNRESOLVED:
msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym),
NULL, NULL);
- if (msym == NULL)
+ if (msym.minsym == NULL)
printf_filtered ("Unresolved Static");
else
{
printf_filtered ("static storage at address ");
printf_filtered ("%s",
paddress (gdbarch,
- SYMBOL_VALUE_ADDRESS (msym)));
+ BMSYMBOL_VALUE_ADDRESS (msym)));
}
break;
case LOC_OPTIMIZED_OUT:
if (count <= 0)
printf_filtered ("Scope for %s contains no locals or arguments.\n",
save_args);
+ do_cleanups (back_to);
}
/* Helper for trace_dump_command. Dump the action list starting at
{
size_t len = next_comma - action_exp;
- cmd = xrealloc (cmd, len + 1);
+ cmd = (char *) xrealloc (cmd, len + 1);
memcpy (cmd, action_exp, len);
cmd[len] = 0;
}
{
size_t len = strlen (action_exp);
- cmd = xrealloc (cmd, len + 1);
+ cmd = (char *) xrealloc (cmd, len + 1);
memcpy (cmd, action_exp, len + 1);
}
make_cleanup (xfree, default_collect_line);
validate_actionline (default_collect_line, t);
- default_collect_action = xmalloc (sizeof (struct command_line));
+ default_collect_action = XNEW (struct command_line);
make_cleanup (xfree, default_collect_action);
default_collect_action->next = actions;
default_collect_action->line = default_collect_line;
printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
tracepoint_number, traceframe_number);
- old_chain = make_cleanup (null_cleanup, NULL);
-
/* This command only makes sense for the current frame, not the
selected frame. */
- make_cleanup_restore_current_thread ();
+ old_chain = make_cleanup_restore_current_thread ();
select_frame (get_current_frame ());
actions = all_tracepoint_actions_and_cleanup (loc->owner);
extern int
encode_source_string (int tpnum, ULONGEST addr,
- char *srctype, char *src, char *buf, int buf_size)
+ char *srctype, const char *src, char *buf, int buf_size)
{
if (80 + strlen (srctype) > buf_size)
error (_("Buffer too small for source encoding"));
clear_traceframe_info ();
}
-/* Make the traceframe NUM be the current trace frame, and do nothing
- more. */
-
-void
-set_traceframe_number (int num)
-{
- traceframe_number = num;
-}
-
/* A cleanup used when switching away and back from tfind mode. */
struct current_traceframe_cleanup
static void
do_restore_current_traceframe_cleanup (void *arg)
{
- struct current_traceframe_cleanup *old = arg;
+ struct current_traceframe_cleanup *old
+ = (struct current_traceframe_cleanup *) arg;
set_current_traceframe (old->traceframe_number);
}
static void
restore_current_traceframe_cleanup_dtor (void *arg)
{
- struct current_traceframe_cleanup *old = arg;
+ struct current_traceframe_cleanup *old
+ = (struct current_traceframe_cleanup *) arg;
xfree (old);
}
struct cleanup *
make_cleanup_restore_current_traceframe (void)
{
- struct current_traceframe_cleanup *old;
+ struct current_traceframe_cleanup *old =
+ XNEW (struct current_traceframe_cleanup);
- old = xmalloc (sizeof (struct current_traceframe_cleanup));
old->traceframe_number = traceframe_number;
return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old,
restore_current_traceframe_cleanup_dtor);
}
-struct cleanup *
-make_cleanup_restore_traceframe_number (void)
-{
- return make_cleanup_restore_integer (&traceframe_number);
-}
-
/* Given a number and address, return an uploaded tracepoint with that
number, creating if necessary. */
for (utp = *utpp; utp; utp = utp->next)
if (utp->number == num && utp->addr == addr)
return utp;
- utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp));
- memset (utp, 0, sizeof (struct uploaded_tp));
+
+ utp = XCNEW (struct uploaded_tp);
utp->number = num;
utp->addr = addr;
utp->actions = NULL;
utp->cmd_strings = NULL;
utp->next = *utpp;
*utpp = utp;
+
return utp;
}
for (utsv = *utsvp; utsv; utsv = utsv->next)
if (utsv->number == num)
return utsv;
- utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv));
- memset (utsv, 0, sizeof (struct uploaded_tsv));
+
+ utsv = XCNEW (struct uploaded_tsv);
utsv->number = num;
utsv->next = *utsvp;
*utsvp = utsv;
+
return utsv;
}
free_uploaded_tsvs (uploaded_tsvs);
}
-/* target tfile command */
-
-static struct target_ops tfile_ops;
-
-/* Fill in tfile_ops with its defined operations and properties. */
-
-#define TRACE_HEADER_SIZE 8
-
-static char *trace_filename;
-static int trace_fd = -1;
-static off_t trace_frames_offset;
-static off_t cur_offset;
-static int cur_data_size;
-int trace_regblock_size;
-
-static void tfile_interp_line (char *line,
- struct uploaded_tp **utpp,
- struct uploaded_tsv **utsvp);
-
-/* Read SIZE bytes into READBUF from the trace frame, starting at
- TRACE_FD's current position. Note that this call `read'
- underneath, hence it advances the file's seek position. Throws an
- error if the `read' syscall fails, or less than SIZE bytes are
- read. */
-
-static void
-tfile_read (gdb_byte *readbuf, int size)
-{
- int gotten;
-
- gotten = read (trace_fd, readbuf, size);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < size)
- error (_("Premature end of file while reading trace file"));
-}
-
-static void
-tfile_open (char *filename, int from_tty)
-{
- volatile struct gdb_exception ex;
- char *temp;
- struct cleanup *old_chain;
- int flags;
- int scratch_chan;
- char header[TRACE_HEADER_SIZE];
- char linebuf[1000]; /* Should be max remote packet size or so. */
- gdb_byte byte;
- int bytes, i;
- struct trace_status *ts;
- struct uploaded_tp *uploaded_tps = NULL;
- struct uploaded_tsv *uploaded_tsvs = NULL;
-
- target_preopen (from_tty);
- if (!filename)
- error (_("No trace file specified."));
-
- filename = tilde_expand (filename);
- if (!IS_ABSOLUTE_PATH(filename))
- {
- temp = concat (current_directory, "/", filename, (char *) NULL);
- xfree (filename);
- filename = temp;
- }
-
- old_chain = make_cleanup (xfree, filename);
-
- flags = O_BINARY | O_LARGEFILE;
- flags |= O_RDONLY;
- scratch_chan = gdb_open_cloexec (filename, flags, 0);
- if (scratch_chan < 0)
- perror_with_name (filename);
-
- /* Looks semi-reasonable. Toss the old trace file and work on the new. */
-
- discard_cleanups (old_chain); /* Don't free filename any more. */
- unpush_target (&tfile_ops);
-
- trace_filename = xstrdup (filename);
- trace_fd = scratch_chan;
-
- bytes = 0;
- /* Read the file header and test for validity. */
- tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE);
-
- bytes += TRACE_HEADER_SIZE;
- if (!(header[0] == 0x7f
- && (strncmp (header + 1, "TRACE0\n", 7) == 0)))
- error (_("File is not a valid trace file."));
-
- push_target (&tfile_ops);
-
- trace_regblock_size = 0;
- ts = current_trace_status ();
- /* We know we're working with a file. Record its name. */
- ts->filename = trace_filename;
- /* Set defaults in case there is no status line. */
- ts->running_known = 0;
- ts->stop_reason = trace_stop_reason_unknown;
- ts->traceframe_count = -1;
- ts->buffer_free = 0;
- ts->disconnected_tracing = 0;
- ts->circular_buffer = 0;
-
- TRY_CATCH (ex, RETURN_MASK_ALL)
- {
- /* Read through a section of newline-terminated lines that
- define things like tracepoints. */
- i = 0;
- while (1)
- {
- tfile_read (&byte, 1);
-
- ++bytes;
- if (byte == '\n')
- {
- /* Empty line marks end of the definition section. */
- if (i == 0)
- break;
- linebuf[i] = '\0';
- i = 0;
- tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs);
- }
- else
- linebuf[i++] = byte;
- if (i >= 1000)
- error (_("Excessively long lines in trace file"));
- }
-
- /* Record the starting offset of the binary trace data. */
- trace_frames_offset = bytes;
-
- /* If we don't have a blocksize, we can't interpret the
- traceframes. */
- if (trace_regblock_size == 0)
- error (_("No register block size recorded in trace file"));
- }
- if (ex.reason < 0)
- {
- /* Remove the partially set up target. */
- unpush_target (&tfile_ops);
- throw_exception (ex);
- }
-
- inferior_appeared (current_inferior (), TFILE_PID);
- inferior_ptid = pid_to_ptid (TFILE_PID);
- add_thread_silent (inferior_ptid);
-
- if (ts->traceframe_count <= 0)
- warning (_("No traceframes present in this file."));
-
- /* Add the file's tracepoints and variables into the current mix. */
-
- /* Get trace state variables first, they may be checked when parsing
- uploaded commands. */
- merge_uploaded_trace_state_variables (&uploaded_tsvs);
-
- merge_uploaded_tracepoints (&uploaded_tps);
-
- post_create_inferior (&tfile_ops, from_tty);
-}
-
-/* Interpret the given line from the definitions part of the trace
- file. */
-
-static void
-tfile_interp_line (char *line, struct uploaded_tp **utpp,
- struct uploaded_tsv **utsvp)
-{
- char *p = line;
-
- if (strncmp (p, "R ", strlen ("R ")) == 0)
- {
- p += strlen ("R ");
- trace_regblock_size = strtol (p, &p, 16);
- }
- else if (strncmp (p, "status ", strlen ("status ")) == 0)
- {
- p += strlen ("status ");
- parse_trace_status (p, current_trace_status ());
- }
- else if (strncmp (p, "tp ", strlen ("tp ")) == 0)
- {
- p += strlen ("tp ");
- parse_tracepoint_definition (p, utpp);
- }
- else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0)
- {
- p += strlen ("tsv ");
- parse_tsv_definition (p, utsvp);
- }
- else
- warning (_("Ignoring trace file definition \"%s\""), line);
-}
-
/* Parse the part of trace status syntax that is shared between
the remote protocol and the trace file reader. */
}
else if (p2 != p1)
{
- ts->stop_desc = xmalloc (strlen (line));
+ ts->stop_desc = (char *) xmalloc (strlen (line));
end = hex2bin (p1, (gdb_byte *) ts->stop_desc, (p2 - p1) / 2);
ts->stop_desc[end] = '\0';
}
p2 = strchr (++p1, ':');
if (p2 != p1)
{
- ts->stop_desc = xmalloc ((p2 - p1) / 2 + 1);
+ ts->stop_desc = (char *) xmalloc ((p2 - p1) / 2 + 1);
end = hex2bin (p1, (gdb_byte *) ts->stop_desc, (p2 - p1) / 2);
ts->stop_desc[end] = '\0';
}
else if (strncmp (p, "username", p1 - p) == 0)
{
++p1;
- ts->user_name = xmalloc (strlen (p) / 2);
+ ts->user_name = (char *) xmalloc (strlen (p) / 2);
end = hex2bin (p1, (gdb_byte *) ts->user_name, (p3 - p1) / 2);
ts->user_name[end] = '\0';
p = p3;
else if (strncmp (p, "notes", p1 - p) == 0)
{
++p1;
- ts->notes = xmalloc (strlen (p) / 2);
+ ts->notes = (char *) xmalloc (strlen (p) / 2);
end = hex2bin (p1, (gdb_byte *) ts->notes, (p3 - p1) / 2);
ts->notes[end] = '\0';
p = p3;
p = unpack_varlen_hex (p, &xlen);
p++; /* skip a colon */
- buf = alloca (strlen (line));
+ buf = (char *) alloca (strlen (line));
end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2);
buf[end] = '\0';
- if (strncmp (srctype, "at:", strlen ("at:")) == 0)
+ if (startswith (srctype, "at:"))
utp->at_string = xstrdup (buf);
- else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0)
+ else if (startswith (srctype, "cond:"))
utp->cond_string = xstrdup (buf);
- else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0)
+ else if (startswith (srctype, "cmd:"))
VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf));
}
else if (piece == 'V')
int end;
struct uploaded_tsv *utsv = NULL;
- buf = alloca (strlen (line));
+ buf = (char *) alloca (strlen (line));
p = line;
p = unpack_varlen_hex (p, &num);
utsv->name = xstrdup (buf);
}
-/* Close the trace file and generally clean up. */
-
-static void
-tfile_close (struct target_ops *self)
-{
- int pid;
-
- if (trace_fd < 0)
- return;
-
- pid = ptid_get_pid (inferior_ptid);
- inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */
- exit_inferior_silent (pid);
-
- close (trace_fd);
- trace_fd = -1;
- xfree (trace_filename);
- trace_filename = NULL;
-
- trace_reset_local_state ();
-}
-
-static void
-tfile_files_info (struct target_ops *t)
-{
- printf_filtered ("\t`%s'\n", trace_filename);
-}
-
-/* The trace status for a file is that tracing can never be run. */
-
-static int
-tfile_get_trace_status (struct target_ops *self, struct trace_status *ts)
-{
- /* Other bits of trace status were collected as part of opening the
- trace files, so nothing to do here. */
-
- return -1;
-}
-
-static void
-tfile_get_tracepoint_status (struct target_ops *self,
- struct breakpoint *tp, struct uploaded_tp *utp)
-{
- /* Other bits of trace status were collected as part of opening the
- trace files, so nothing to do here. */
-}
-
-/* Given the position of a traceframe in the file, figure out what
- address the frame was collected at. This would normally be the
- value of a collected PC register, but if not available, we
- improvise. */
-
-static CORE_ADDR
-tfile_get_traceframe_address (off_t tframe_offset)
-{
- CORE_ADDR addr = 0;
- short tpnum;
- struct tracepoint *tp;
- off_t saved_offset = cur_offset;
-
- /* FIXME dig pc out of collected registers. */
-
- /* Fall back to using tracepoint address. */
- lseek (trace_fd, tframe_offset, SEEK_SET);
- tfile_read ((gdb_byte *) &tpnum, 2);
- tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
- gdbarch_byte_order
- (target_gdbarch ()));
-
- tp = get_tracepoint_by_number_on_target (tpnum);
- /* FIXME this is a poor heuristic if multiple locations. */
- if (tp && tp->base.loc)
- addr = tp->base.loc->address;
-
- /* Restore our seek position. */
- cur_offset = saved_offset;
- lseek (trace_fd, cur_offset, SEEK_SET);
- return addr;
-}
-
-/* Given a type of search and some parameters, scan the collection of
- traceframes in the file looking for a match. When found, return
- both the traceframe and tracepoint number, otherwise -1 for
- each. */
-
-static int
-tfile_trace_find (struct target_ops *self, enum trace_find_type type, int num,
- CORE_ADDR addr1, CORE_ADDR addr2, int *tpp)
-{
- short tpnum;
- int tfnum = 0, found = 0;
- unsigned int data_size;
- struct tracepoint *tp;
- off_t offset, tframe_offset;
- CORE_ADDR tfaddr;
-
- if (num == -1)
- {
- if (tpp)
- *tpp = -1;
- return -1;
- }
-
- lseek (trace_fd, trace_frames_offset, SEEK_SET);
- offset = trace_frames_offset;
- while (1)
- {
- tframe_offset = offset;
- tfile_read ((gdb_byte *) &tpnum, 2);
- tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
- gdbarch_byte_order
- (target_gdbarch ()));
- offset += 2;
- if (tpnum == 0)
- break;
- tfile_read ((gdb_byte *) &data_size, 4);
- data_size = (unsigned int) extract_unsigned_integer
- ((gdb_byte *) &data_size, 4,
- gdbarch_byte_order (target_gdbarch ()));
- offset += 4;
-
- if (type == tfind_number)
- {
- /* Looking for a specific trace frame. */
- if (tfnum == num)
- found = 1;
- }
- else
- {
- /* Start from the _next_ trace frame. */
- if (tfnum > traceframe_number)
- {
- switch (type)
- {
- case tfind_pc:
- tfaddr = tfile_get_traceframe_address (tframe_offset);
- if (tfaddr == addr1)
- found = 1;
- break;
- case tfind_tp:
- tp = get_tracepoint (num);
- if (tp && tpnum == tp->number_on_target)
- found = 1;
- break;
- case tfind_range:
- tfaddr = tfile_get_traceframe_address (tframe_offset);
- if (addr1 <= tfaddr && tfaddr <= addr2)
- found = 1;
- break;
- case tfind_outside:
- tfaddr = tfile_get_traceframe_address (tframe_offset);
- if (!(addr1 <= tfaddr && tfaddr <= addr2))
- found = 1;
- break;
- default:
- internal_error (__FILE__, __LINE__, _("unknown tfind type"));
- }
- }
- }
-
- if (found)
- {
- if (tpp)
- *tpp = tpnum;
- cur_offset = offset;
- cur_data_size = data_size;
-
- return tfnum;
- }
- /* Skip past the traceframe's data. */
- lseek (trace_fd, data_size, SEEK_CUR);
- offset += data_size;
- /* Update our own count of traceframes. */
- ++tfnum;
- }
- /* Did not find what we were looking for. */
- if (tpp)
- *tpp = -1;
- return -1;
-}
-
-/* Prototype of the callback passed to tframe_walk_blocks. */
-typedef int (*walk_blocks_callback_func) (char blocktype, void *data);
-
-/* Callback for traceframe_walk_blocks, used to find a given block
- type in a traceframe. */
-
-static int
-match_blocktype (char blocktype, void *data)
-{
- char *wantedp = data;
-
- if (*wantedp == blocktype)
- return 1;
-
- return 0;
-}
-
-/* Walk over all traceframe block starting at POS offset from
- CUR_OFFSET, and call CALLBACK for each block found, passing in DATA
- unmodified. If CALLBACK returns true, this returns the position in
- the traceframe where the block is found, relative to the start of
- the traceframe (cur_offset). Returns -1 if no callback call
- returned true, indicating that all blocks have been walked. */
-
-static int
-traceframe_walk_blocks (walk_blocks_callback_func callback,
- int pos, void *data)
-{
- /* Iterate through a traceframe's blocks, looking for a block of the
- requested type. */
-
- lseek (trace_fd, cur_offset + pos, SEEK_SET);
- while (pos < cur_data_size)
- {
- unsigned short mlen;
- char block_type;
-
- tfile_read ((gdb_byte *) &block_type, 1);
-
- ++pos;
-
- if ((*callback) (block_type, data))
- return pos;
-
- switch (block_type)
- {
- case 'R':
- lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET);
- pos += trace_regblock_size;
- break;
- case 'M':
- lseek (trace_fd, cur_offset + pos + 8, SEEK_SET);
- tfile_read ((gdb_byte *) &mlen, 2);
- mlen = (unsigned short)
- extract_unsigned_integer ((gdb_byte *) &mlen, 2,
- gdbarch_byte_order
- (target_gdbarch ()));
- lseek (trace_fd, mlen, SEEK_CUR);
- pos += (8 + 2 + mlen);
- break;
- case 'V':
- lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET);
- pos += (4 + 8);
- break;
- default:
- error (_("Unknown block type '%c' (0x%x) in trace frame"),
- block_type, block_type);
- break;
- }
- }
-
- return -1;
-}
-
-/* Convenience wrapper around traceframe_walk_blocks. Looks for the
- position offset of a block of type TYPE_WANTED in the current trace
- frame, starting at POS. Returns -1 if no such block was found. */
-
-static int
-traceframe_find_block_type (char type_wanted, int pos)
-{
- return traceframe_walk_blocks (match_blocktype, pos, &type_wanted);
-}
-
-/* Look for a block of saved registers in the traceframe, and get the
- requested register from it. */
-
-static void
-tfile_fetch_registers (struct target_ops *ops,
- struct regcache *regcache, int regno)
-{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
- int offset, regn, regsize, pc_regno;
- gdb_byte *regs;
-
- /* An uninitialized reg size says we're not going to be
- successful at getting register blocks. */
- if (!trace_regblock_size)
- return;
-
- regs = alloca (trace_regblock_size);
-
- if (traceframe_find_block_type ('R', 0) >= 0)
- {
- tfile_read (regs, trace_regblock_size);
-
- /* Assume the block is laid out in GDB register number order,
- each register with the size that it has in GDB. */
- offset = 0;
- for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
- {
- regsize = register_size (gdbarch, regn);
- /* Make sure we stay within block bounds. */
- if (offset + regsize >= trace_regblock_size)
- break;
- if (regcache_register_status (regcache, regn) == REG_UNKNOWN)
- {
- if (regno == regn)
- {
- regcache_raw_supply (regcache, regno, regs + offset);
- break;
- }
- else if (regno == -1)
- {
- regcache_raw_supply (regcache, regn, regs + offset);
- }
- }
- offset += regsize;
- }
- return;
- }
-
- /* We get here if no register data has been found. Mark registers
- as unavailable. */
- for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
- regcache_raw_supply (regcache, regn, NULL);
-
- /* We can often usefully guess that the PC is going to be the same
- as the address of the tracepoint. */
- pc_regno = gdbarch_pc_regnum (gdbarch);
-
- /* XXX This guessing code below only works if the PC register isn't
- a pseudo-register. The value of a pseudo-register isn't stored
- in the (non-readonly) regcache -- instead it's recomputed
- (probably from some other cached raw register) whenever the
- register is read. This guesswork should probably move to some
- higher layer. */
- if (pc_regno < 0 || pc_regno >= gdbarch_num_regs (gdbarch))
- return;
-
- if (regno == -1 || regno == pc_regno)
- {
- struct tracepoint *tp = get_tracepoint (tracepoint_number);
-
- if (tp && tp->base.loc)
- {
- /* But don't try to guess if tracepoint is multi-location... */
- if (tp->base.loc->next)
- {
- warning (_("Tracepoint %d has multiple "
- "locations, cannot infer $pc"),
- tp->base.number);
- return;
- }
- /* ... or does while-stepping. */
- if (tp->step_count > 0)
- {
- warning (_("Tracepoint %d does while-stepping, "
- "cannot infer $pc"),
- tp->base.number);
- return;
- }
-
- store_unsigned_integer (regs, register_size (gdbarch, pc_regno),
- gdbarch_byte_order (gdbarch),
- tp->base.loc->address);
- regcache_raw_supply (regcache, pc_regno, regs);
- }
- }
-}
-
-static enum target_xfer_status
-tfile_xfer_partial (struct target_ops *ops, enum target_object object,
- const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf, ULONGEST offset, ULONGEST len,
- ULONGEST *xfered_len)
-{
- /* We're only doing regular memory for now. */
- if (object != TARGET_OBJECT_MEMORY)
- return TARGET_XFER_E_IO;
-
- if (readbuf == NULL)
- error (_("tfile_xfer_partial: trace file is read-only"));
-
- if (traceframe_number != -1)
- {
- int pos = 0;
-
- /* Iterate through the traceframe's blocks, looking for
- memory. */
- while ((pos = traceframe_find_block_type ('M', pos)) >= 0)
- {
- ULONGEST maddr, amt;
- unsigned short mlen;
- enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
-
- tfile_read ((gdb_byte *) &maddr, 8);
- maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8,
- byte_order);
- tfile_read ((gdb_byte *) &mlen, 2);
- mlen = (unsigned short)
- extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order);
-
- /* If the block includes the first part of the desired
- range, return as much it has; GDB will re-request the
- remainder, which might be in a different block of this
- trace frame. */
- if (maddr <= offset && offset < (maddr + mlen))
- {
- amt = (maddr + mlen) - offset;
- if (amt > len)
- amt = len;
-
- if (maddr != offset)
- lseek (trace_fd, offset - maddr, SEEK_CUR);
- tfile_read (readbuf, amt);
- *xfered_len = amt;
- return TARGET_XFER_OK;
- }
-
- /* Skip over this block. */
- pos += (8 + 2 + mlen);
- }
- }
-
- /* It's unduly pedantic to refuse to look at the executable for
- read-only pieces; so do the equivalent of readonly regions aka
- QTro packet. */
- /* FIXME account for relocation at some point. */
- if (exec_bfd)
- {
- asection *s;
- bfd_size_type size;
- bfd_vma vma;
-
- for (s = exec_bfd->sections; s; s = s->next)
- {
- if ((s->flags & SEC_LOAD) == 0
- || (s->flags & SEC_READONLY) == 0)
- continue;
-
- vma = s->vma;
- size = bfd_get_section_size (s);
- if (vma <= offset && offset < (vma + size))
- {
- ULONGEST amt;
-
- amt = (vma + size) - offset;
- if (amt > len)
- amt = len;
-
- *xfered_len = bfd_get_section_contents (exec_bfd, s,
- readbuf, offset - vma, amt);
- return TARGET_XFER_OK;
- }
- }
- }
-
- /* Indicate failure to find the requested memory block. */
- return TARGET_XFER_E_IO;
-}
-
-/* Iterate through the blocks of a trace frame, looking for a 'V'
- block with a matching tsv number. */
-
-static int
-tfile_get_trace_state_variable_value (struct target_ops *self,
- int tsvnum, LONGEST *val)
-{
- int pos;
- int found = 0;
-
- /* Iterate over blocks in current frame and find the last 'V'
- block in which tsv number is TSVNUM. In one trace frame, there
- may be multiple 'V' blocks created for a given trace variable,
- and the last matched 'V' block contains the updated value. */
- pos = 0;
- while ((pos = traceframe_find_block_type ('V', pos)) >= 0)
- {
- int vnum;
-
- tfile_read ((gdb_byte *) &vnum, 4);
- vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4,
- gdbarch_byte_order
- (target_gdbarch ()));
- if (tsvnum == vnum)
- {
- tfile_read ((gdb_byte *) val, 8);
- *val = extract_signed_integer ((gdb_byte *) val, 8,
- gdbarch_byte_order
- (target_gdbarch ()));
- found = 1;
- }
- pos += (4 + 8);
- }
-
- return found;
-}
-
-static int
-tfile_has_all_memory (struct target_ops *ops)
-{
- return 1;
-}
-
-static int
-tfile_has_memory (struct target_ops *ops)
-{
- return 1;
-}
-
-static int
-tfile_has_stack (struct target_ops *ops)
-{
- return traceframe_number != -1;
-}
-
-static int
-tfile_has_registers (struct target_ops *ops)
-{
- return traceframe_number != -1;
-}
-
-static int
-tfile_thread_alive (struct target_ops *ops, ptid_t ptid)
-{
- return 1;
-}
-
-/* Callback for traceframe_walk_blocks. Builds a traceframe_info
- object for the tfile target's current traceframe. */
-
-static int
-build_traceframe_info (char blocktype, void *data)
-{
- struct traceframe_info *info = data;
-
- switch (blocktype)
- {
- case 'M':
- {
- struct mem_range *r;
- ULONGEST maddr;
- unsigned short mlen;
-
- tfile_read ((gdb_byte *) &maddr, 8);
- maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8,
- gdbarch_byte_order
- (target_gdbarch ()));
- tfile_read ((gdb_byte *) &mlen, 2);
- mlen = (unsigned short)
- extract_unsigned_integer ((gdb_byte *) &mlen,
- 2, gdbarch_byte_order
- (target_gdbarch ()));
-
- r = VEC_safe_push (mem_range_s, info->memory, NULL);
-
- r->start = maddr;
- r->length = mlen;
- break;
- }
- case 'V':
- {
- int vnum;
-
- tfile_read ((gdb_byte *) &vnum, 4);
- VEC_safe_push (int, info->tvars, vnum);
- }
- case 'R':
- case 'S':
- {
- break;
- }
- default:
- warning (_("Unhandled trace block type (%d) '%c ' "
- "while building trace frame info."),
- blocktype, blocktype);
- break;
- }
-
- return 0;
-}
-
-static struct traceframe_info *
-tfile_traceframe_info (struct target_ops *self)
-{
- struct traceframe_info *info = XCNEW (struct traceframe_info);
-
- traceframe_walk_blocks (build_traceframe_info, 0, info);
- return info;
-}
-
-static void
-init_tfile_ops (void)
-{
- tfile_ops.to_shortname = "tfile";
- tfile_ops.to_longname = "Local trace dump file";
- tfile_ops.to_doc
- = "Use a trace file as a target. Specify the filename of the trace file.";
- tfile_ops.to_open = tfile_open;
- tfile_ops.to_close = tfile_close;
- tfile_ops.to_fetch_registers = tfile_fetch_registers;
- tfile_ops.to_xfer_partial = tfile_xfer_partial;
- tfile_ops.to_files_info = tfile_files_info;
- tfile_ops.to_get_trace_status = tfile_get_trace_status;
- tfile_ops.to_get_tracepoint_status = tfile_get_tracepoint_status;
- tfile_ops.to_trace_find = tfile_trace_find;
- tfile_ops.to_get_trace_state_variable_value
- = tfile_get_trace_state_variable_value;
- tfile_ops.to_stratum = process_stratum;
- tfile_ops.to_has_all_memory = tfile_has_all_memory;
- tfile_ops.to_has_memory = tfile_has_memory;
- tfile_ops.to_has_stack = tfile_has_stack;
- tfile_ops.to_has_registers = tfile_has_registers;
- tfile_ops.to_traceframe_info = tfile_traceframe_info;
- tfile_ops.to_thread_alive = tfile_thread_alive;
- tfile_ops.to_magic = OPS_MAGIC;
-}
-
void
free_current_marker (void *arg)
{
- struct static_tracepoint_marker **marker_p = arg;
+ struct static_tracepoint_marker **marker_p
+ = (struct static_tracepoint_marker **) arg;
if (*marker_p != NULL)
{
if (endp == NULL)
error (_("bad marker definition: %s"), line);
- marker->str_id = xmalloc (endp - p + 1);
+ marker->str_id = (char *) xmalloc (endp - p + 1);
end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2);
marker->str_id[end] = '\0';
p += 2 * end;
p++; /* skip a colon */
- marker->extra = xmalloc (strlen (p) + 1);
+ marker->extra = (char *) xmalloc (strlen (p) + 1);
end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2);
marker->extra[end] = '\0';
print_one_static_tracepoint_marker (int count,
struct static_tracepoint_marker *marker)
{
- struct command_line *l;
struct symbol *sym;
char wrap_indent[80];
const struct gdb_xml_element *element,
void *user_data, VEC(gdb_xml_value_s) *attributes)
{
- struct traceframe_info *info = user_data;
+ struct traceframe_info *info = (struct traceframe_info *) user_data;
struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL);
ULONGEST *start_p, *length_p;
- start_p = xml_find_attribute (attributes, "start")->value;
- length_p = xml_find_attribute (attributes, "length")->value;
+ start_p
+ = (ULONGEST *) xml_find_attribute (attributes, "start")->value;
+ length_p
+ = (ULONGEST *) xml_find_attribute (attributes, "length")->value;
r->start = *start_p;
r->length = *length_p;
void *user_data,
VEC(gdb_xml_value_s) *attributes)
{
- struct traceframe_info *info = user_data;
- const char *id_attrib = xml_find_attribute (attributes, "id")->value;
+ struct traceframe_info *info = (struct traceframe_info *) user_data;
+ const char *id_attrib
+ = (const char *) xml_find_attribute (attributes, "id")->value;
int id = gdb_xml_parse_ulongest (parser, id_attrib);
VEC_safe_push (int, info->tvars, id);
static void
free_result (void *p)
{
- struct traceframe_info *result = p;
+ struct traceframe_info *result = (struct traceframe_info *) p;
free_traceframe_info (result);
}
nr = VEC_safe_push (mem_range_s, *result, NULL);
- nr->start = max (lo1, lo2);
- nr->length = min (hi1, hi2) - nr->start;
+ nr->start = std::max (lo1, lo2);
+ nr->length = std::min (hi1, hi2) - nr->start;
}
normalize_mem_ranges (*result);
Show the notes string to use for future tstop commands"), NULL,
set_trace_stop_notes, NULL,
&setlist, &showlist);
-
- init_tfile_ops ();
-
- add_target_with_completer (&tfile_ops, filename_completer);
}
projects / deliverable / binutils-gdb.git / blobdiff