X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Ftracepoint.c;h=f38d6c1efb50a1b3a54e2f690bccc8cf1618aa84;hb=081dfbf778bccf638e777fd4babc2911d0a59306;hp=58ca98fbb3035f383037571a613a0251e185b9cc;hpb=fe898f56a1df2d8a610899df50e38d1590f3e57a;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c index 58ca98fbb3..f38d6c1efb 100644 --- a/gdb/tracepoint.c +++ b/gdb/tracepoint.c @@ -1,13 +1,13 @@ /* Tracing functionality for remote targets in custom GDB protocol - Copyright 1997, 1998, 1999, 2000, 2001, 2002 Free Software - Foundation, Inc. + Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, + 2007, 2008, 2009, 2010 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -16,11 +16,10 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + along with this program. If not, see . */ #include "defs.h" +#include "arch-utils.h" #include "symtab.h" #include "frame.h" #include "gdbtypes.h" @@ -31,20 +30,27 @@ #include "language.h" #include "gdb_string.h" #include "inferior.h" +#include "breakpoint.h" #include "tracepoint.h" -#include "remote.h" #include "linespec.h" #include "regcache.h" #include "completer.h" -#include "gdb-events.h" #include "block.h" +#include "dictionary.h" +#include "observer.h" +#include "user-regs.h" +#include "valprint.h" +#include "gdbcore.h" +#include "objfiles.h" +#include "filenames.h" +#include "gdbthread.h" #include "ax.h" #include "ax-gdb.h" /* readline include files */ -#include -#include +#include "readline/readline.h" +#include "readline/history.h" /* readline defines this. */ #undef savestring @@ -53,8 +59,17 @@ #include #endif -/* maximum length of an agent aexpression. - this accounts for the fact that packets are limited to 400 bytes +#ifndef O_LARGEFILE +#define O_LARGEFILE 0 +#endif + +extern int hex2bin (const char *hex, gdb_byte *bin, int count); +extern int bin2hex (const gdb_byte *bin, char *hex, int count); + +extern void stop_tracing (); + +/* 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 the worst case of maximum length for each of the pieces of a continuation packet. @@ -63,12 +78,14 @@ large. (400 - 31)/2 == 184 */ #define MAX_AGENT_EXPR_LEN 184 +/* A hook used to notify the UI of tracepoint operations. */ -extern void (*readline_begin_hook) (char *, ...); -extern char *(*readline_hook) (char *); -extern void (*readline_end_hook) (void); -extern void x_command (char *, int); -extern int addressprint; /* Print machine addresses? */ +void (*deprecated_trace_find_hook) (char *arg, int from_tty); +void (*deprecated_trace_start_stop_hook) (int start, int from_tty); + +extern void (*deprecated_readline_begin_hook) (char *, ...); +extern char *(*deprecated_readline_hook) (char *); +extern void (*deprecated_readline_end_hook) (void); /* GDB commands implemented in other modules: */ @@ -103,11 +120,18 @@ extern void output_command (char *, int); /* ======= Important global variables: ======= */ -/* Chain of all tracepoints defined. */ -struct tracepoint *tracepoint_chain; +/* The list of all trace state variables. We don't retain pointers to + any of these for any reason - API is by name or number only - so it + works to have a vector of objects. */ + +typedef struct trace_state_variable tsv_s; +DEF_VEC_O(tsv_s); + +static VEC(tsv_s) *tvariables; + +/* The next integer to assign to a variable. */ -/* Number of last tracepoint made. */ -static int tracepoint_count; +static int next_tsv_number = 1; /* Number of last traceframe collected. */ static int traceframe_number; @@ -124,13 +148,12 @@ static struct symtab_and_line traceframe_sal; /* Tracing command lists */ static struct cmd_list_element *tfindlist; +/* List of expressions to collect by default at each tracepoint hit. */ +char *default_collect = ""; + +static int disconnected_tracing; + /* ======= Important command functions: ======= */ -static void trace_command (char *, int); -static void tracepoints_info (char *, int); -static void delete_trace_command (char *, int); -static void enable_trace_command (char *, int); -static void disable_trace_command (char *, int); -static void trace_pass_command (char *, int); static void trace_actions_command (char *, int); static void trace_start_command (char *, int); static void trace_stop_command (char *, int); @@ -141,84 +164,40 @@ static void trace_find_tracepoint_command (char *, int); static void trace_find_line_command (char *, int); static void trace_find_range_command (char *, int); static void trace_find_outside_command (char *, int); -static void tracepoint_save_command (char *, int); static void trace_dump_command (char *, int); /* support routines */ -static void trace_mention (struct tracepoint *); struct collection_list; static void add_aexpr (struct collection_list *, struct agent_expr *); -static unsigned char *mem2hex (unsigned char *, unsigned char *, int); +static char *mem2hex (gdb_byte *, char *, int); static void add_register (struct collection_list *collection, unsigned int regno); -static struct cleanup *make_cleanup_free_actions (struct tracepoint *t); -static void free_actions_list (char **actions_list); -static void free_actions_list_cleanup_wrapper (void *); +static struct cleanup *make_cleanup_free_actions (struct breakpoint *t); -extern void _initialize_tracepoint (void); +extern void send_disconnected_tracing_value (int value); -/* Utility: returns true if "target remote" */ -static int -target_is_remote (void) -{ - if (current_target.to_shortname && - strcmp (current_target.to_shortname, "remote") == 0) - return 1; - else - return 0; -} +static void free_uploaded_tps (struct uploaded_tp **utpp); +static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); -/* Utility: generate error from an incoming stub packet. */ -static void -trace_error (char *buf) -{ - if (*buf++ != 'E') - return; /* not an error msg */ - switch (*buf) - { - case '1': /* malformed packet error */ - if (*++buf == '0') /* general case: */ - error ("tracepoint.c: error in outgoing packet."); - else - error ("tracepoint.c: error in outgoing packet at field #%ld.", - strtol (buf, NULL, 16)); - case '2': - error ("trace API error 0x%s.", ++buf); - default: - error ("Target returns error code '%s'.", buf); - } -} -/* Utility: wait for reply from stub, while accepting "O" packets */ -static char * -remote_get_noisy_reply (char *buf, - long sizeof_buf) -{ - do /* loop on reply from remote stub */ - { - QUIT; /* allow user to bail out with ^C */ - getpkt (buf, sizeof_buf, 0); - if (buf[0] == 0) - error ("Target does not support this command."); - else if (buf[0] == 'E') - trace_error (buf); - else if (buf[0] == 'O' && - buf[1] != 'K') - remote_console_output (buf + 1); /* 'O' message from stub */ - else - return buf; /* here's the actual reply */ - } - while (1); -} +extern void _initialize_tracepoint (void); -/* Set tracepoint count to NUM. */ -static void -set_tracepoint_count (int num) +static struct trace_status trace_status; + +char *stop_reason_names[] = { + "tunknown", + "tnotrun", + "tstop", + "tfull", + "tdisconnected", + "tpasscount" +}; + +struct trace_status * +current_trace_status () { - tracepoint_count = num; - set_internalvar (lookup_internalvar ("tpnum"), - value_from_longest (builtin_type_int, (LONGEST) num)); + return &trace_status; } /* Set traceframe number to NUM. */ @@ -226,8 +205,7 @@ static void set_traceframe_num (int num) { traceframe_number = num; - set_internalvar (lookup_internalvar ("trace_frame"), - value_from_longest (builtin_type_int, (LONGEST) num)); + set_internalvar_integer (lookup_internalvar ("trace_frame"), num); } /* Set tracepoint number to NUM. */ @@ -235,513 +213,240 @@ static void set_tracepoint_num (int num) { tracepoint_number = num; - set_internalvar (lookup_internalvar ("tracepoint"), - value_from_longest (builtin_type_int, (LONGEST) num)); + set_internalvar_integer (lookup_internalvar ("tracepoint"), num); } /* Set externally visible debug variables for querying/printing the traceframe context (line, function, file) */ static void -set_traceframe_context (CORE_ADDR trace_pc) +set_traceframe_context (struct frame_info *trace_frame) { - static struct type *func_string, *file_string; - static struct type *func_range, *file_range; - struct value *func_val; - struct value *file_val; - static struct type *charstar; - int len; - - if (charstar == (struct type *) NULL) - charstar = lookup_pointer_type (builtin_type_char); + CORE_ADDR trace_pc; - if (trace_pc == -1) /* cease debugging any trace buffers */ + if (trace_frame == NULL) /* Cease debugging any trace buffers. */ { traceframe_fun = 0; traceframe_sal.pc = traceframe_sal.line = 0; traceframe_sal.symtab = NULL; - set_internalvar (lookup_internalvar ("trace_func"), - value_from_pointer (charstar, (LONGEST) 0)); - set_internalvar (lookup_internalvar ("trace_file"), - value_from_pointer (charstar, (LONGEST) 0)); - set_internalvar (lookup_internalvar ("trace_line"), - value_from_pointer (builtin_type_int, (LONGEST) - 1)); + clear_internalvar (lookup_internalvar ("trace_func")); + clear_internalvar (lookup_internalvar ("trace_file")); + set_internalvar_integer (lookup_internalvar ("trace_line"), -1); return; } - /* save as globals for internal use */ + /* Save as globals for internal use. */ + trace_pc = get_frame_pc (trace_frame); traceframe_sal = find_pc_line (trace_pc, 0); traceframe_fun = find_pc_function (trace_pc); - /* save linenumber as "$trace_line", a debugger variable visible to users */ - set_internalvar (lookup_internalvar ("trace_line"), - value_from_longest (builtin_type_int, - (LONGEST) traceframe_sal.line)); + /* Save linenumber as "$trace_line", a debugger variable visible to + users. */ + set_internalvar_integer (lookup_internalvar ("trace_line"), + traceframe_sal.line); - /* save func name as "$trace_func", a debugger variable visible to users */ - if (traceframe_fun == NULL || - SYMBOL_NAME (traceframe_fun) == NULL) - set_internalvar (lookup_internalvar ("trace_func"), - value_from_pointer (charstar, (LONGEST) 0)); + /* Save func name as "$trace_func", a debugger variable visible to + users. */ + if (traceframe_fun == NULL + || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) + clear_internalvar (lookup_internalvar ("trace_func")); else - { - len = strlen (SYMBOL_NAME (traceframe_fun)); - func_range = create_range_type (func_range, - builtin_type_int, 0, len - 1); - func_string = create_array_type (func_string, - builtin_type_char, func_range); - func_val = allocate_value (func_string); - VALUE_TYPE (func_val) = func_string; - memcpy (VALUE_CONTENTS_RAW (func_val), - SYMBOL_NAME (traceframe_fun), - len); - func_val->modifiable = 0; - set_internalvar (lookup_internalvar ("trace_func"), func_val); - } - - /* save file name as "$trace_file", a debugger variable visible to users */ - if (traceframe_sal.symtab == NULL || - traceframe_sal.symtab->filename == NULL) - set_internalvar (lookup_internalvar ("trace_file"), - value_from_pointer (charstar, (LONGEST) 0)); + set_internalvar_string (lookup_internalvar ("trace_func"), + SYMBOL_LINKAGE_NAME (traceframe_fun)); + + /* Save file name as "$trace_file", a debugger variable visible to + users. */ + if (traceframe_sal.symtab == NULL + || traceframe_sal.symtab->filename == NULL) + clear_internalvar (lookup_internalvar ("trace_file")); else - { - len = strlen (traceframe_sal.symtab->filename); - file_range = create_range_type (file_range, - builtin_type_int, 0, len - 1); - file_string = create_array_type (file_string, - builtin_type_char, file_range); - file_val = allocate_value (file_string); - VALUE_TYPE (file_val) = file_string; - memcpy (VALUE_CONTENTS_RAW (file_val), - traceframe_sal.symtab->filename, - len); - file_val->modifiable = 0; - set_internalvar (lookup_internalvar ("trace_file"), file_val); - } + set_internalvar_string (lookup_internalvar ("trace_file"), + traceframe_sal.symtab->filename); } -/* Low level routine to set a tracepoint. - Returns the tracepoint object so caller can set other things. - Does not set the tracepoint number! - Does not print anything. - - ==> This routine should not be called if there is a chance of later - error(); otherwise it leaves a bogus tracepoint on the chain. Validate - your arguments BEFORE calling this routine! */ +/* Create a new trace state variable with the given name. */ -static struct tracepoint * -set_raw_tracepoint (struct symtab_and_line sal) +struct trace_state_variable * +create_trace_state_variable (const char *name) { - register struct tracepoint *t, *tc; - struct cleanup *old_chain; + struct trace_state_variable tsv; - t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint)); - old_chain = make_cleanup (xfree, t); - memset (t, 0, sizeof (*t)); - t->address = sal.pc; - if (sal.symtab == NULL) - t->source_file = NULL; - else - t->source_file = savestring (sal.symtab->filename, - strlen (sal.symtab->filename)); - - t->section = sal.section; - t->language = current_language->la_language; - t->input_radix = input_radix; - t->line_number = sal.line; - t->enabled_p = 1; - t->next = 0; - t->step_count = 0; - t->pass_count = 0; - t->addr_string = NULL; - - /* Add this tracepoint to the end of the chain - so that a list of tracepoints will come out in order - of increasing numbers. */ - - tc = tracepoint_chain; - if (tc == 0) - tracepoint_chain = t; - else - { - while (tc->next) - tc = tc->next; - tc->next = t; - } - discard_cleanups (old_chain); - return t; + memset (&tsv, 0, sizeof (tsv)); + tsv.name = name; + tsv.number = next_tsv_number++; + return VEC_safe_push (tsv_s, tvariables, &tsv); } -/* Set a tracepoint according to ARG (function, linenum or *address) */ -static void -trace_command (char *arg, int from_tty) -{ - char **canonical = (char **) NULL; - struct symtabs_and_lines sals; - struct symtab_and_line sal; - struct tracepoint *t; - char *addr_start = 0, *addr_end = 0; - int i; - - if (!arg || !*arg) - error ("trace command requires an argument"); - - if (from_tty && info_verbose) - printf_filtered ("TRACE %s\n", arg); - - addr_start = arg; - sals = decode_line_1 (&arg, 1, (struct symtab *) NULL, 0, &canonical); - addr_end = arg; - if (!sals.nelts) - return; /* ??? Presumably decode_line_1 has already warned? */ - - /* Resolve all line numbers to PC's */ - for (i = 0; i < sals.nelts; i++) - resolve_sal_pc (&sals.sals[i]); - - /* Now set all the tracepoints. */ - for (i = 0; i < sals.nelts; i++) - { - sal = sals.sals[i]; - - t = set_raw_tracepoint (sal); - set_tracepoint_count (tracepoint_count + 1); - t->number = tracepoint_count; +/* Look for a trace state variable of the given name. */ - /* If a canonical line spec is needed use that instead of the - command string. */ - if (canonical != (char **) NULL && canonical[i] != NULL) - t->addr_string = canonical[i]; - else if (addr_start) - t->addr_string = savestring (addr_start, addr_end - addr_start); +struct trace_state_variable * +find_trace_state_variable (const char *name) +{ + struct trace_state_variable *tsv; + int ix; - trace_mention (t); - } + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + if (strcmp (name, tsv->name) == 0) + return tsv; - if (sals.nelts > 1) - { - printf_filtered ("Multiple tracepoints were set.\n"); - printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n"); - } + return NULL; } -/* Tell the user we have just set a tracepoint TP. */ - -static void -trace_mention (struct tracepoint *tp) +void +delete_trace_state_variable (const char *name) { - printf_filtered ("Tracepoint %d", tp->number); + struct trace_state_variable *tsv; + int ix; - if (addressprint || (tp->source_file == NULL)) - { - printf_filtered (" at "); - print_address_numeric (tp->address, 1, gdb_stdout); - } - if (tp->source_file) - printf_filtered (": file %s, line %d.", - tp->source_file, tp->line_number); + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + if (strcmp (name, tsv->name) == 0) + { + VEC_unordered_remove (tsv_s, tvariables, ix); + return; + } - printf_filtered ("\n"); + warning (_("No trace variable named \"$%s\", not deleting"), name); } -/* Print information on tracepoint number TPNUM_EXP, or all if omitted. */ +/* The 'tvariable' command collects a name and optional expression to + evaluate into an initial value. */ -static void -tracepoints_info (char *tpnum_exp, int from_tty) +void +trace_variable_command (char *args, int from_tty) { - struct tracepoint *t; - struct action_line *action; - int found_a_tracepoint = 0; - char wrap_indent[80]; - struct symbol *sym; - int tpnum = -1; - - if (tpnum_exp) - tpnum = parse_and_eval_long (tpnum_exp); - - ALL_TRACEPOINTS (t) - if (tpnum == -1 || tpnum == t->number) - { - extern int addressprint; /* print machine addresses? */ - - if (!found_a_tracepoint++) - { - printf_filtered ("Num Enb "); - if (addressprint) - { - if (TARGET_ADDR_BIT <= 32) - printf_filtered ("Address "); - else - printf_filtered ("Address "); - } - printf_filtered ("PassC StepC What\n"); - } - strcpy (wrap_indent, " "); - if (addressprint) - { - if (TARGET_ADDR_BIT <= 32) - strcat (wrap_indent, " "); - else - strcat (wrap_indent, " "); - } - - printf_filtered ("%-3d %-3s ", t->number, - t->enabled_p ? "y" : "n"); - if (addressprint) - { - char *tmp; + struct expression *expr; + struct cleanup *old_chain; + struct internalvar *intvar = NULL; + LONGEST initval = 0; + struct trace_state_variable *tsv; - if (TARGET_ADDR_BIT <= 32) - tmp = local_hex_string_custom (t->address - & (CORE_ADDR) 0xffffffff, - "08l"); - else - tmp = local_hex_string_custom (t->address, "016l"); + if (!args || !*args) + error_no_arg (_("trace state variable name")); - printf_filtered ("%s ", tmp); - } - printf_filtered ("%-5d %-5ld ", t->pass_count, t->step_count); + /* All the possible valid arguments are expressions. */ + expr = parse_expression (args); + old_chain = make_cleanup (free_current_contents, &expr); - if (t->source_file) - { - sym = find_pc_sect_function (t->address, t->section); - if (sym) - { - fputs_filtered ("in ", gdb_stdout); - fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout); - wrap_here (wrap_indent); - fputs_filtered (" at ", gdb_stdout); - } - fputs_filtered (t->source_file, gdb_stdout); - printf_filtered (":%d", t->line_number); - } - else - print_address_symbolic (t->address, gdb_stdout, demangle, " "); + if (expr->nelts == 0) + error (_("No expression?")); - printf_filtered ("\n"); - if (t->actions) - { - printf_filtered (" Actions for tracepoint %d: \n", t->number); - for (action = t->actions; action; action = action->next) - { - printf_filtered ("\t%s\n", action->action); - } - } + /* Only allow two syntaxes; "$name" and "$name=value". */ + if (expr->elts[0].opcode == OP_INTERNALVAR) + { + intvar = expr->elts[1].internalvar; } - if (!found_a_tracepoint) + else if (expr->elts[0].opcode == BINOP_ASSIGN + && expr->elts[1].opcode == OP_INTERNALVAR) { - if (tpnum == -1) - printf_filtered ("No tracepoints.\n"); - else - printf_filtered ("No tracepoint number %d.\n", tpnum); + intvar = expr->elts[2].internalvar; + initval = value_as_long (evaluate_subexpression_type (expr, 4)); } -} - -/* Optimization: the code to parse an enable, disable, or delete TP command - is virtually identical except for whether it performs an enable, disable, - or delete. Therefore I've combined them into one function with an opcode. - */ -enum tracepoint_opcode -{ - enable_op, - disable_op, - delete_op -}; + else + error (_("Syntax must be $NAME [ = EXPR ]")); -/* This function implements enable, disable and delete commands. */ -static void -tracepoint_operation (struct tracepoint *t, int from_tty, - enum tracepoint_opcode opcode) -{ - struct tracepoint *t2; + if (!intvar) + error (_("No name given")); - if (t == NULL) /* no tracepoint operand */ - return; + if (strlen (internalvar_name (intvar)) <= 0) + error (_("Must supply a non-empty variable name")); - switch (opcode) + /* If the variable already exists, just change its initial value. */ + tsv = find_trace_state_variable (internalvar_name (intvar)); + if (tsv) { - case enable_op: - t->enabled_p = 1; - tracepoint_modify_event (t->number); - break; - case disable_op: - t->enabled_p = 0; - tracepoint_modify_event (t->number); - break; - case delete_op: - if (tracepoint_chain == t) - tracepoint_chain = t->next; + tsv->initial_value = initval; + printf_filtered (_("Trace state variable $%s now has initial value %s.\n"), + tsv->name, plongest (tsv->initial_value)); + return; + } - ALL_TRACEPOINTS (t2) - if (t2->next == t) - { - tracepoint_delete_event (t2->number); - t2->next = t->next; - break; - } + /* Create a new variable. */ + tsv = create_trace_state_variable (internalvar_name (intvar)); + tsv->initial_value = initval; - if (t->addr_string) - xfree (t->addr_string); - if (t->source_file) - xfree (t->source_file); - if (t->actions) - free_actions (t); + printf_filtered (_("Trace state variable $%s created, with initial value %s.\n"), + tsv->name, plongest (tsv->initial_value)); - xfree (t); - break; - } + do_cleanups (old_chain); } -/* Utility: parse a tracepoint number and look it up in the list. - If MULTI_P is true, there might be a range of tracepoints in ARG. - if OPTIONAL_P is true, then if the argument is missing, the most - recent tracepoint (tracepoint_count) is returned. */ -struct tracepoint * -get_tracepoint_by_number (char **arg, int multi_p, int optional_p) +void +delete_trace_variable_command (char *args, int from_tty) { - struct tracepoint *t; - int tpnum; - char *instring = arg == NULL ? NULL : *arg; + int i, ix; + char **argv; + struct cleanup *back_to; + struct trace_state_variable *tsv; - if (arg == NULL || *arg == NULL || ! **arg) + if (args == NULL) { - if (optional_p) - tpnum = tracepoint_count; - else - error_no_arg ("tracepoint number"); + if (query (_("Delete all trace state variables? "))) + VEC_free (tsv_s, tvariables); + dont_repeat (); + return; } - else - tpnum = multi_p ? get_number_or_range (arg) : get_number (arg); - if (tpnum <= 0) - { - if (instring && *instring) - printf_filtered ("bad tracepoint number at or near '%s'\n", instring); - else - printf_filtered ("Tracepoint argument missing and no previous tracepoint\n"); - return NULL; - } + argv = gdb_buildargv (args); + back_to = make_cleanup_freeargv (argv); - ALL_TRACEPOINTS (t) - if (t->number == tpnum) + for (i = 0; argv[i] != NULL; i++) { - return t; + if (*argv[i] == '$') + delete_trace_state_variable (argv[i] + 1); + else + warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[i]); } - /* FIXME: if we are in the middle of a range we don't want to give - a message. The current interface to get_number_or_range doesn't - allow us to discover this. */ - printf_unfiltered ("No tracepoint number %d.\n", tpnum); - return NULL; -} - -/* Utility: parse a list of tracepoint numbers, and call a func for each. */ -static void -map_args_over_tracepoints (char *args, int from_tty, - enum tracepoint_opcode opcode) -{ - struct tracepoint *t, *tmp; - - if (args == 0 || *args == 0) /* do them all */ - ALL_TRACEPOINTS_SAFE (t, tmp) - tracepoint_operation (t, from_tty, opcode); - else - while (*args) - { - QUIT; /* give user option to bail out with ^C */ - t = get_tracepoint_by_number (&args, 1, 0); - tracepoint_operation (t, from_tty, opcode); - while (*args == ' ' || *args == '\t') - args++; - } -} - -/* The 'enable trace' command enables tracepoints. Not supported by all targets. */ -static void -enable_trace_command (char *args, int from_tty) -{ - dont_repeat (); - map_args_over_tracepoints (args, from_tty, enable_op); -} - -/* The 'disable trace' command enables tracepoints. Not supported by all targets. */ -static void -disable_trace_command (char *args, int from_tty) -{ - dont_repeat (); - map_args_over_tracepoints (args, from_tty, disable_op); -} + do_cleanups (back_to); -/* Remove a tracepoint (or all if no argument) */ -static void -delete_trace_command (char *args, int from_tty) -{ dont_repeat (); - if (!args || !*args) /* No args implies all tracepoints; */ - if (from_tty) /* confirm only if from_tty... */ - if (tracepoint_chain) /* and if there are tracepoints to delete! */ - if (!query ("Delete all tracepoints? ")) - return; - - map_args_over_tracepoints (args, from_tty, delete_op); } -/* Set passcount for tracepoint. - - First command argument is passcount, second is tracepoint number. - If tracepoint number omitted, apply to most recently defined. - Also accepts special argument "all". */ +/* List all the trace state variables. */ static void -trace_pass_command (char *args, int from_tty) +tvariables_info (char *args, int from_tty) { - struct tracepoint *t1 = (struct tracepoint *) -1, *t2; - unsigned int count; - int all = 0; - - if (args == 0 || *args == 0) - error ("passcount command requires an argument (count + optional TP num)"); - - count = strtoul (args, &args, 10); /* count comes first, then TP num */ - - while (*args && isspace ((int) *args)) - args++; + struct trace_state_variable *tsv; + int ix; + char *reply; + ULONGEST tval; - if (*args && strncasecmp (args, "all", 3) == 0) + if (VEC_length (tsv_s, tvariables) == 0) { - args += 3; /* skip special argument "all" */ - all = 1; - if (*args) - error ("Junk at end of arguments."); + printf_filtered (_("No trace state variables.\n")); + return; } - else - t1 = get_tracepoint_by_number (&args, 1, 1); - do + /* Try to acquire values from the target. */ + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + tsv->value_known = target_get_trace_state_variable_value (tsv->number, + &(tsv->value)); + + printf_filtered (_("Name\t\t Initial\tCurrent\n")); + + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) { - if (t1) - { - ALL_TRACEPOINTS (t2) - if (t1 == (struct tracepoint *) -1 || t1 == t2) - { - t2->pass_count = count; - tracepoint_modify_event (t2->number); - if (from_tty) - printf_filtered ("Setting tracepoint %d's passcount to %d\n", - t2->number, count); - } - if (! all && *args) - t1 = get_tracepoint_by_number (&args, 1, 0); - } + printf_filtered ("$%s", tsv->name); + print_spaces_filtered (17 - strlen (tsv->name), gdb_stdout); + printf_filtered ("%s ", plongest (tsv->initial_value)); + print_spaces_filtered (11 - strlen (plongest (tsv->initial_value)), gdb_stdout); + if (tsv->value_known) + printf_filtered (" %s", plongest (tsv->value)); + else if (current_trace_status ()->running || traceframe_number >= 0) + /* The value is/was defined, but we don't have it. */ + printf_filtered (_(" ")); + else + /* It is not meaningful to ask about the value. */ + printf_filtered (_(" ")); + printf_filtered ("\n"); } - while (*args); } /* ACTIONS functions: */ /* Prototypes for action-parsing utility commands */ -static void read_actions (struct tracepoint *); +static void read_actions (struct breakpoint *); /* The three functions: collect_pseudocommand, @@ -752,29 +457,35 @@ static void read_actions (struct tracepoint *); it means that somebody issued the "command" at the top level, which is always an error. */ -static void +void end_actions_pseudocommand (char *args, int from_tty) { - error ("This command cannot be used at the top level."); + error (_("This command cannot be used at the top level.")); } -static void +void while_stepping_pseudocommand (char *args, int from_tty) { - error ("This command can only be used in a tracepoint actions list."); + error (_("This command can only be used in a tracepoint actions list.")); } static void collect_pseudocommand (char *args, int from_tty) { - error ("This command can only be used in a tracepoint actions list."); + error (_("This command can only be used in a tracepoint actions list.")); +} + +static void +teval_pseudocommand (char *args, int from_tty) +{ + error (_("This command can only be used in a tracepoint actions list.")); } /* Enter a list of actions for a tracepoint. */ static void trace_actions_command (char *args, int from_tty) { - struct tracepoint *t; + struct breakpoint *t; char tmpbuf[128]; char *end_msg = "End with a line saying just \"end\"."; @@ -786,8 +497,8 @@ trace_actions_command (char *args, int from_tty) if (from_tty) { - if (readline_begin_hook) - (*readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); + if (deprecated_readline_begin_hook) + (*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); else if (input_from_terminal_p ()) printf_filtered ("%s\n%s\n", tmpbuf, end_msg); } @@ -796,8 +507,8 @@ trace_actions_command (char *args, int from_tty) t->step_count = 0; /* read_actions may set this */ read_actions (t); - if (readline_end_hook) - (*readline_end_hook) (); + if (deprecated_readline_end_hook) + (*deprecated_readline_end_hook) (); /* tracepoints_changed () */ } /* else just return */ @@ -805,7 +516,7 @@ trace_actions_command (char *args, int from_tty) /* worker function */ static void -read_actions (struct tracepoint *t) +read_actions (struct breakpoint *t) { char *line; char *prompt1 = "> ", *prompt2 = " > "; @@ -825,24 +536,20 @@ read_actions (struct tracepoint *t) isn't declared. Leave this alone for now. */ #ifdef STOP_SIGNAL if (job_control) - { - if (event_loop_p) - signal (STOP_SIGNAL, handle_stop_sig); - else - signal (STOP_SIGNAL, stop_sig); - } + signal (STOP_SIGNAL, handle_stop_sig); #endif old_chain = make_cleanup_free_actions (t); while (1) { - /* Make sure that all output has been output. Some machines may let - you get away with leaving out some of the gdb_flush, but not all. */ + /* Make sure that all output has been output. Some machines may + let you get away with leaving out some of the gdb_flush, but + not all. */ wrap_here (""); gdb_flush (gdb_stdout); gdb_flush (gdb_stderr); - if (readline_hook && instream == NULL) - line = (*readline_hook) (prompt); + if (deprecated_readline_hook && instream == NULL) + line = (*deprecated_readline_hook) (prompt); else if (instream == stdin && ISATTY (instream)) { line = gdb_readline_wrapper (prompt); @@ -852,6 +559,12 @@ read_actions (struct tracepoint *t) else line = gdb_readline (0); + if (!line) + { + line = xstrdup ("end"); + printf_filtered ("end\n"); + } + linetype = validate_actionline (&line, t); if (linetype == BADLINE) continue; /* already warned -- collect another line */ @@ -872,7 +585,7 @@ read_actions (struct tracepoint *t) { if (prompt == prompt2) { - warning ("Already processing 'while-stepping'"); + warning (_("Already processing 'while-stepping'")); continue; } else @@ -888,8 +601,9 @@ read_actions (struct tracepoint *t) { /* end of actions */ if (t->actions->next == NULL) { - /* an "end" all by itself with no other actions means - this tracepoint has no actions. Discard empty list. */ + /* An "end" all by itself with no other actions + means this tracepoint has no actions. + Discard empty list. */ free_actions (t); } break; @@ -906,18 +620,22 @@ read_actions (struct tracepoint *t) /* worker function */ enum actionline_type -validate_actionline (char **line, struct tracepoint *t) +validate_actionline (char **line, struct breakpoint *t) { struct cmd_list_element *c; struct expression *exp = NULL; struct cleanup *old_chain = NULL; char *p; + /* if EOF is typed, *line is NULL */ + if (*line == NULL) + return END; + for (p = *line; isspace ((int) *p);) p++; - /* symbol lookup etc. */ - if (*p == '\0') /* empty line: just prompt for another line. */ + /* Symbol lookup etc. */ + if (*p == '\0') /* empty line: just prompt for another line. */ return BADLINE; if (*p == '#') /* comment line */ @@ -926,7 +644,8 @@ validate_actionline (char **line, struct tracepoint *t) c = lookup_cmd (&p, cmdlist, "", -1, 1); if (c == 0) { - warning ("'%s' is not an action that I know, or is ambiguous.", p); + warning (_("'%s' is not an action that I know, or is ambiguous."), + p); return BADLINE; } @@ -950,47 +669,76 @@ validate_actionline (char **line, struct tracepoint *t) p = strchr (p, ','); continue; } - /* else fall thru, treat p as an expression and parse it! */ + /* else fall thru, treat p as an expression and parse it! */ } - exp = parse_exp_1 (&p, block_for_pc (t->address), 1); + exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); old_chain = make_cleanup (free_current_contents, &exp); if (exp->elts[0].opcode == OP_VAR_VALUE) { if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) { - warning ("constant %s (value %ld) will not be collected.", - SYMBOL_NAME (exp->elts[2].symbol), + warning (_("constant %s (value %ld) will not be collected."), + SYMBOL_PRINT_NAME (exp->elts[2].symbol), SYMBOL_VALUE (exp->elts[2].symbol)); return BADLINE; } else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) { - warning ("%s is optimized away and cannot be collected.", - SYMBOL_NAME (exp->elts[2].symbol)); + warning (_("%s is optimized away and cannot be collected."), + SYMBOL_PRINT_NAME (exp->elts[2].symbol)); return BADLINE; } } - /* 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 (t->address, exp); + /* 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 (t->loc->address, exp); make_cleanup_free_agent_expr (aexpr); if (aexpr->len > MAX_AGENT_EXPR_LEN) - error ("expression too complicated, try simplifying"); + error (_("expression too complicated, try simplifying")); ax_reqs (aexpr, &areqs); (void) make_cleanup (xfree, areqs.reg_mask); if (areqs.flaw != agent_flaw_none) - error ("malformed expression"); + error (_("malformed expression")); if (areqs.min_height < 0) - error ("gdb: Internal error: expression has min height < 0"); + error (_("gdb: Internal error: expression has min height < 0")); if (areqs.max_height > 20) - error ("expression too complicated, try simplifying"); + error (_("expression too complicated, try simplifying")); + + do_cleanups (old_chain); + } + while (p && *p++ == ','); + return GENERIC; + } + else if (cmd_cfunc_eq (c, teval_pseudocommand)) + { + struct agent_expr *aexpr; + + do + { /* repeat over a comma-separated list */ + QUIT; /* allow user to bail out with ^C */ + while (isspace ((int) *p)) + p++; + + /* Only expressions are allowed for this action. */ + exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); + old_chain = make_cleanup (free_current_contents, &exp); + + /* 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 (t->loc->address, exp); + make_cleanup_free_agent_expr (aexpr); + + if (aexpr->len > MAX_AGENT_EXPR_LEN) + error (_("expression too complicated, try simplifying")); do_cleanups (old_chain); } @@ -1008,7 +756,7 @@ validate_actionline (char **line, struct tracepoint *t) if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0) { - warning ("'%s': bad step-count; command ignored.", *line); + warning (_("'%s': bad step-count; command ignored."), *line); return BADLINE; } return STEPPING; @@ -1017,14 +765,14 @@ validate_actionline (char **line, struct tracepoint *t) return END; else { - warning ("'%s' is not a supported tracepoint action.", *line); + warning (_("'%s' is not a supported tracepoint action."), *line); return BADLINE; } } /* worker function */ void -free_actions (struct tracepoint *t) +free_actions (struct breakpoint *t) { struct action_line *line, *next; @@ -1045,21 +793,26 @@ do_free_actions_cleanup (void *t) } static struct cleanup * -make_cleanup_free_actions (struct tracepoint *t) +make_cleanup_free_actions (struct breakpoint *t) { return make_cleanup (do_free_actions_cleanup, t); } +enum { + memrange_absolute = -1 +}; + struct memrange { - int type; /* 0 for absolute memory range, else basereg number */ + int type; /* memrange_absolute for absolute memory range, + else basereg number */ bfd_signed_vma start; bfd_signed_vma end; }; struct collection_list { - unsigned char regs_mask[8]; /* room for up to 256 regs */ + unsigned char regs_mask[32]; /* room for up to 256 regs */ long listsize; long next_memrange; struct memrange *list; @@ -1084,7 +837,7 @@ memrange_cmp (const void *va, const void *vb) return -1; if (a->type > b->type) return 1; - if (a->type == 0) + if (a->type == memrange_absolute) { if ((bfd_vma) a->start < (bfd_vma) b->start) return -1; @@ -1101,7 +854,7 @@ memrange_cmp (const void *va, const void *vb) return 0; } -/* Sort the memrange list using qsort, and merge adjacent memranges */ +/* Sort the memrange list using qsort, and merge adjacent memranges. */ static void memrange_sortmerge (struct collection_list *memranges) { @@ -1115,7 +868,7 @@ memrange_sortmerge (struct collection_list *memranges) { if (memranges->list[a].type == memranges->list[b].type && memranges->list[b].start - memranges->list[a].end <= - MAX_REGISTER_VIRTUAL_SIZE) + MAX_REGISTER_SIZE) { /* memrange b starts before memrange a ends; merge them. */ if (memranges->list[b].end > memranges->list[a].end) @@ -1131,21 +884,22 @@ memrange_sortmerge (struct collection_list *memranges) } } -/* Add a register to a collection list */ +/* Add a register to a collection list. */ static void add_register (struct collection_list *collection, unsigned int regno) { if (info_verbose) printf_filtered ("collect register %d\n", regno); - if (regno > (8 * sizeof (collection->regs_mask))) - error ("Internal: register number %d too large for tracepoint", + if (regno >= (8 * sizeof (collection->regs_mask))) + error (_("Internal: register number %d too large for tracepoint"), regno); collection->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, +add_memrange (struct collection_list *memranges, + int type, bfd_signed_vma base, unsigned long len) { if (info_verbose) @@ -1155,9 +909,9 @@ add_memrange (struct collection_list *memranges, int type, bfd_signed_vma base, printf_filtered (",%ld)\n", len); } - /* type: 0 == memory, n == basereg */ + /* type: memrange_absolute == memory, other n == basereg */ memranges->list[memranges->next_memrange].type = type; - /* base: addr if memory, offset if reg relative. */ + /* 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; @@ -1169,14 +923,17 @@ add_memrange (struct collection_list *memranges, int type, bfd_signed_vma base, memranges->listsize); } - if (type != -1) /* better collect the base register! */ + if (type != memrange_absolute) /* Better collect the base register! */ add_register (memranges, type); } -/* Add a symbol to a collection list */ +/* Add a symbol to a collection list. */ static void -collect_symbol (struct collection_list *collect, struct symbol *sym, - long frame_regno, long frame_offset) +collect_symbol (struct collection_list *collect, + struct symbol *sym, + struct gdbarch *gdbarch, + long frame_regno, long frame_offset, + CORE_ADDR scope) { unsigned long len; unsigned int reg; @@ -1187,11 +944,12 @@ collect_symbol (struct collection_list *collect, struct symbol *sym, { default: printf_filtered ("%s: don't know symbol class %d\n", - SYMBOL_NAME (sym), SYMBOL_CLASS (sym)); + SYMBOL_PRINT_NAME (sym), + SYMBOL_CLASS (sym)); break; case LOC_CONST: printf_filtered ("constant %s (value %ld) will not be collected.\n", - SYMBOL_NAME (sym), SYMBOL_VALUE (sym)); + SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); break; case LOC_STATIC: offset = SYMBOL_VALUE_ADDRESS (sym); @@ -1201,26 +959,27 @@ collect_symbol (struct collection_list *collect, struct symbol *sym, sprintf_vma (tmp, offset); printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", - SYMBOL_NAME (sym), len, tmp /* address */); + SYMBOL_PRINT_NAME (sym), len, + tmp /* address */); } - add_memrange (collect, -1, offset, len); /* 0 == memory */ + add_memrange (collect, memrange_absolute, offset, len); break; case LOC_REGISTER: - case LOC_REGPARM: - reg = SYMBOL_VALUE (sym); + reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); if (info_verbose) - printf_filtered ("LOC_REG[parm] %s: ", SYMBOL_NAME (sym)); + printf_filtered ("LOC_REG[parm] %s: ", + SYMBOL_PRINT_NAME (sym)); add_register (collect, reg); - /* check for doubles stored in two registers */ - /* FIXME: how about larger types stored in 3 or more regs? */ + /* 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_RAW_SIZE (reg)) + len > register_size (gdbarch, reg)) add_register (collect, reg + 1); break; case LOC_REF_ARG: printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); printf_filtered (" (will not collect %s)\n", - SYMBOL_NAME (sym)); + SYMBOL_PRINT_NAME (sym)); break; case LOC_ARG: reg = frame_regno; @@ -1228,7 +987,7 @@ collect_symbol (struct collection_list *collect, struct symbol *sym, if (info_verbose) { printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", - SYMBOL_NAME (sym), len); + SYMBOL_PRINT_NAME (sym), len); printf_vma (offset); printf_filtered (" from frame ptr reg %d\n", reg); } @@ -1240,89 +999,103 @@ collect_symbol (struct collection_list *collect, struct symbol *sym, if (info_verbose) { printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", - SYMBOL_NAME (sym), len); + SYMBOL_PRINT_NAME (sym), len); printf_vma (offset); printf_filtered (" from reg %d\n", reg); } add_memrange (collect, reg, offset, len); break; case LOC_LOCAL: - case LOC_LOCAL_ARG: reg = frame_regno; offset = frame_offset + SYMBOL_VALUE (sym); if (info_verbose) { printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", - SYMBOL_NAME (sym), len); + SYMBOL_PRINT_NAME (sym), len); printf_vma (offset); printf_filtered (" from frame ptr reg %d\n", reg); } add_memrange (collect, reg, offset, len); break; - case LOC_BASEREG: - case LOC_BASEREG_ARG: - reg = SYMBOL_BASEREG (sym); - offset = SYMBOL_VALUE (sym); - if (info_verbose) - { - printf_filtered ("LOC_BASEREG %s: collect %ld bytes at offset ", - SYMBOL_NAME (sym), len); - printf_vma (offset); - printf_filtered (" from basereg %d\n", reg); - } - add_memrange (collect, reg, offset, len); - break; case LOC_UNRESOLVED: - printf_filtered ("Don't know LOC_UNRESOLVED %s\n", SYMBOL_NAME (sym)); + printf_filtered ("Don't know LOC_UNRESOLVED %s\n", + SYMBOL_PRINT_NAME (sym)); break; case LOC_OPTIMIZED_OUT: printf_filtered ("%s has been optimized out of existence.\n", - SYMBOL_NAME (sym)); + SYMBOL_PRINT_NAME (sym)); + break; + + case LOC_COMPUTED: + { + struct agent_expr *aexpr; + struct cleanup *old_chain1 = NULL; + struct agent_reqs areqs; + + aexpr = gen_trace_for_var (scope, sym); + + old_chain1 = make_cleanup_free_agent_expr (aexpr); + + ax_reqs (aexpr, &areqs); + if (areqs.flaw != agent_flaw_none) + error (_("malformed expression")); + + if (areqs.min_height < 0) + error (_("gdb: Internal error: expression has min height < 0")); + if (areqs.max_height > 20) + error (_("expression too complicated, try simplifying")); + + discard_cleanups (old_chain1); + add_aexpr (collect, aexpr); + + /* take care of the registers */ + if (areqs.reg_mask_len > 0) + { + int ndx1, ndx2; + + for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) + { + QUIT; /* allow user to bail out with ^C */ + if (areqs.reg_mask[ndx1] != 0) + { + /* assume chars have 8 bits */ + for (ndx2 = 0; ndx2 < 8; ndx2++) + if (areqs.reg_mask[ndx1] & (1 << ndx2)) + /* it's used -- record it */ + add_register (collect, + ndx1 * 8 + ndx2); + } + } + } + } break; } } /* Add all locals (or args) symbols to collection list */ static void -add_local_symbols (struct collection_list *collect, CORE_ADDR pc, +add_local_symbols (struct collection_list *collect, + struct gdbarch *gdbarch, CORE_ADDR pc, long frame_regno, long frame_offset, int type) { struct symbol *sym; struct block *block; - int i, count = 0; + struct dict_iterator iter; + int count = 0; block = block_for_pc (pc); while (block != 0) { QUIT; /* allow user to bail out with ^C */ - ALL_BLOCK_SYMBOLS (block, i, sym) + ALL_BLOCK_SYMBOLS (block, iter, sym) { - switch (SYMBOL_CLASS (sym)) + if (SYMBOL_IS_ARGUMENT (sym) + ? type == 'A' /* collecting Arguments */ + : type == 'L') /* collecting Locals */ { - default: - warning ("don't know how to trace local symbol %s", - SYMBOL_NAME (sym)); - case LOC_LOCAL: - case LOC_STATIC: - case LOC_REGISTER: - case LOC_BASEREG: - if (type == 'L') /* collecting Locals */ - { - count++; - collect_symbol (collect, sym, frame_regno, frame_offset); - } - break; - case LOC_ARG: - case LOC_LOCAL_ARG: - case LOC_REF_ARG: - case LOC_REGPARM: - case LOC_REGPARM_ADDR: - case LOC_BASEREG_ARG: - if (type == 'A') /* collecting Arguments */ - { - count++; - collect_symbol (collect, sym, frame_regno, frame_offset); - } + count++; + collect_symbol (collect, sym, gdbarch, + frame_regno, frame_offset, pc); } } if (BLOCK_FUNCTION (block)) @@ -1331,7 +1104,8 @@ add_local_symbols (struct collection_list *collect, CORE_ADDR pc, block = BLOCK_SUPERBLOCK (block); } if (count == 0) - warning ("No %s found in scope.", type == 'L' ? "locals" : "args"); + warning (_("No %s found in scope."), + type == 'L' ? "locals" : "args"); } /* worker function */ @@ -1382,7 +1156,7 @@ stringify_collection_list (struct collection_list *list, char *string) sprintf (end, "%02X", list->regs_mask[i]); end += 2; } - (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); + (*str_list)[ndx] = xstrdup (temp_buf); ndx++; } if (info_verbose) @@ -1408,13 +1182,21 @@ stringify_collection_list (struct collection_list *list, char *string) end = temp_buf; } - sprintf (end, "M%X,%s,%lX", - list->list[i].type, - tmp2, - (long) (list->list[i].end - list->list[i].start)); + { + bfd_signed_vma length = list->list[i].end - list->list[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) + sprintf (end, "M-1,%s,%lX", tmp2, (long) length); + else + sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); + } count += strlen (end); - end += count; + end = temp_buf + count; } for (i = 0; i < list->next_aexpr_elt; i++) @@ -1431,7 +1213,8 @@ stringify_collection_list (struct collection_list *list, char *string) end += 10; /* 'X' + 8 hex digits + ',' */ count += 10; - end = mem2hex (list->aexpr_list[i]->buf, end, list->aexpr_list[i]->len); + end = mem2hex (list->aexpr_list[i]->buf, + end, list->aexpr_list[i]->len); count += 2 * list->aexpr_list[i]->len; } @@ -1445,35 +1228,18 @@ stringify_collection_list (struct collection_list *list, char *string) (*str_list)[ndx] = NULL; if (ndx == 0) - return NULL; + { + xfree (str_list); + return NULL; + } else return *str_list; } -static void -free_actions_list_cleanup_wrapper (void *al) -{ - free_actions_list (al); -} - -static void -free_actions_list (char **actions_list) -{ - int ndx; - - if (actions_list == 0) - return; - - for (ndx = 0; actions_list[ndx]; ndx++) - xfree (actions_list[ndx]); - - xfree (actions_list); -} - -/* render all actions into gdb protocol */ -static void -encode_actions (struct tracepoint *t, char ***tdp_actions, - char ***stepping_actions) +/* Render all actions into gdb protocol. */ +/*static*/ void +encode_actions (struct breakpoint *t, char ***tdp_actions, + char ***stepping_actions) { static char tdp_buff[2048], step_buff[2048]; char *action_exp; @@ -1486,7 +1252,8 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, struct agent_expr *aexpr; int frame_reg; LONGEST frame_offset; - + char *default_collect_line = NULL; + struct action_line *default_collect_action = NULL; clear_collection_list (&tracepoint_list); clear_collection_list (&stepping_list); @@ -1495,9 +1262,35 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, *tdp_actions = NULL; *stepping_actions = NULL; - TARGET_VIRTUAL_FRAME_POINTER (t->address, &frame_reg, &frame_offset); + gdbarch_virtual_frame_pointer (t->gdbarch, + t->loc->address, &frame_reg, &frame_offset); - for (action = t->actions; action; action = action->next) + action = t->actions; + + /* If there are default expressions to collect, make up a collect + action and prepend to the action list to encode. Note that since + validation is per-tracepoint (local var "xyz" might be valid for + one tracepoint and not another, etc), we make up the action on + the fly, and don't cache it. */ + if (*default_collect) + { + char *line; + enum actionline_type linetype; + + default_collect_line = xmalloc (12 + strlen (default_collect)); + sprintf (default_collect_line, "collect %s", default_collect); + line = default_collect_line; + linetype = validate_actionline (&line, t); + if (linetype != BADLINE) + { + default_collect_action = xmalloc (sizeof (struct action_line)); + default_collect_action->next = t->actions; + default_collect_action->action = line; + action = default_collect_action; + } + } + + for (; action; action = action->next) { QUIT; /* allow user to bail out with ^C */ action_exp = action->action; @@ -1509,7 +1302,7 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); if (cmd == 0) - error ("Bad action list item: %s", action_exp); + error (_("Bad action list item: %s"), action_exp); if (cmd_cfunc_eq (cmd, collect_pseudocommand)) { @@ -1521,14 +1314,15 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, if (0 == strncasecmp ("$reg", action_exp, 4)) { - for (i = 0; i < NUM_REGS; i++) + for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) add_register (collect, i); action_exp = strchr (action_exp, ','); /* more? */ } else if (0 == strncasecmp ("$arg", action_exp, 4)) { add_local_symbols (collect, - t->address, + t->gdbarch, + t->loc->address, frame_reg, frame_offset, 'A'); @@ -1537,7 +1331,8 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, else if (0 == strncasecmp ("$loc", action_exp, 4)) { add_local_symbols (collect, - t->address, + t->gdbarch, + t->loc->address, frame_reg, frame_offset, 'L'); @@ -1551,46 +1346,57 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, struct agent_reqs areqs; exp = parse_exp_1 (&action_exp, - block_for_pc (t->address), 1); + block_for_pc (t->loc->address), 1); old_chain = make_cleanup (free_current_contents, &exp); switch (exp->elts[0].opcode) { case OP_REGISTER: - i = exp->elts[1].longconst; - if (info_verbose) - printf_filtered ("OP_REGISTER: "); - add_register (collect, i); - break; + { + const char *name = &exp->elts[2].string; + + i = user_reg_map_name_to_regnum (t->gdbarch, + name, strlen (name)); + if (i == -1) + internal_error (__FILE__, __LINE__, + _("Register $%s not available"), + name); + if (info_verbose) + printf_filtered ("OP_REGISTER: "); + add_register (collect, i); + break; + } case UNOP_MEMVAL: /* safe because we know it's a simple expression */ tempval = evaluate_expression (exp); - addr = VALUE_ADDRESS (tempval) + VALUE_OFFSET (tempval); + addr = value_address (tempval); len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); - add_memrange (collect, -1, addr, len); + add_memrange (collect, memrange_absolute, addr, len); break; case OP_VAR_VALUE: collect_symbol (collect, exp->elts[2].symbol, + t->gdbarch, frame_reg, - frame_offset); + frame_offset, + t->loc->address); break; default: /* full-fledged expression */ - aexpr = gen_trace_for_expr (t->address, exp); + aexpr = gen_trace_for_expr (t->loc->address, exp); old_chain1 = make_cleanup_free_agent_expr (aexpr); ax_reqs (aexpr, &areqs); if (areqs.flaw != agent_flaw_none) - error ("malformed expression"); + error (_("malformed expression")); if (areqs.min_height < 0) - error ("gdb: Internal error: expression has min height < 0"); + error (_("gdb: Internal error: expression has min height < 0")); if (areqs.max_height > 20) - error ("expression too complicated, try simplifying"); + error (_("expression too complicated, try simplifying")); discard_cleanups (old_chain1); add_aexpr (collect, aexpr); @@ -1610,7 +1416,8 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, for (ndx2 = 0; ndx2 < 8; ndx2++) if (areqs.reg_mask[ndx1] & (1 << ndx2)) /* it's used -- record it */ - add_register (collect, ndx1 * 8 + ndx2); + add_register (collect, + ndx1 * 8 + ndx2); } } } @@ -1621,6 +1428,46 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, } while (action_exp && *action_exp++ == ','); } /* if */ + else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) + { + do + { /* repeat over a comma-separated list */ + QUIT; /* allow user to bail out with ^C */ + while (isspace ((int) *action_exp)) + action_exp++; + + { + unsigned long addr, len; + struct cleanup *old_chain = NULL; + struct cleanup *old_chain1 = NULL; + struct agent_reqs areqs; + + exp = parse_exp_1 (&action_exp, + block_for_pc (t->loc->address), 1); + old_chain = make_cleanup (free_current_contents, &exp); + + aexpr = gen_eval_for_expr (t->loc->address, exp); + old_chain1 = make_cleanup_free_agent_expr (aexpr); + + ax_reqs (aexpr, &areqs); + if (areqs.flaw != agent_flaw_none) + error (_("malformed expression")); + + if (areqs.min_height < 0) + error (_("gdb: Internal error: expression has min height < 0")); + if (areqs.max_height > 20) + error (_("expression too complicated, try simplifying")); + + 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); + } /* do */ + } + while (action_exp && *action_exp++ == ','); + } /* if */ else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) { collect = &stepping_list; @@ -1636,8 +1483,13 @@ encode_actions (struct tracepoint *t, char ***tdp_actions, memrange_sortmerge (&tracepoint_list); memrange_sortmerge (&stepping_list); - *tdp_actions = stringify_collection_list (&tracepoint_list, tdp_buff); - *stepping_actions = stringify_collection_list (&stepping_list, step_buff); + *tdp_actions = stringify_collection_list (&tracepoint_list, + tdp_buff); + *stepping_actions = stringify_collection_list (&stepping_list, + step_buff); + + xfree (default_collect_line); + xfree (default_collect_action); } static void @@ -1654,52 +1506,6 @@ add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) collect->next_aexpr_elt++; } -static char target_buf[2048]; - -/* Set "transparent" memory ranges - - Allow trace mechanism to treat text-like sections - (and perhaps all read-only sections) transparently, - i.e. don't reject memory requests from these address ranges - just because they haven't been collected. */ - -static void -remote_set_transparent_ranges (void) -{ - extern bfd *exec_bfd; - asection *s; - bfd_size_type size; - bfd_vma lma; - int anysecs = 0; - - if (!exec_bfd) - return; /* no information to give. */ - - strcpy (target_buf, "QTro"); - for (s = exec_bfd->sections; s; s = s->next) - { - char tmp1[40], tmp2[40]; - - if ((s->flags & SEC_LOAD) == 0 || - /* (s->flags & SEC_CODE) == 0 || */ - (s->flags & SEC_READONLY) == 0) - continue; - - anysecs = 1; - lma = s->lma; - size = bfd_get_section_size_before_reloc (s); - sprintf_vma (tmp1, lma); - sprintf_vma (tmp2, lma + size); - sprintf (target_buf + strlen (target_buf), - ":%s,%s", tmp1, tmp2); - } - if (anysecs) - { - putpkt (target_buf); - getpkt (target_buf, sizeof (target_buf), 0); - } -} - /* tstart command: Tell target to clear any previous trace experiment. @@ -1709,249 +1515,265 @@ remote_set_transparent_ranges (void) static void trace_start_command (char *args, int from_tty) -{ /* STUB_COMM MOSTLY_IMPLEMENTED */ - struct tracepoint *t; +{ char buf[2048]; - char **tdp_actions; - char **stepping_actions; - int ndx; - struct cleanup *old_chain = NULL; + VEC(breakpoint_p) *tp_vec = NULL; + int ix; + struct breakpoint *t; + struct trace_state_variable *tsv; + int any_downloaded = 0; - dont_repeat (); /* like "run", dangerous to repeat accidentally */ + dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ - if (target_is_remote ()) + target_trace_init (); + + tp_vec = all_tracepoints (); + for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) { - putpkt ("QTinit"); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); - if (strcmp (target_buf, "OK")) - error ("Target does not support this command."); - - ALL_TRACEPOINTS (t) - { - char tmp[40]; - - sprintf_vma (tmp, t->address); - sprintf (buf, "QTDP:%x:%s:%c:%lx:%x", t->number, tmp, /* address */ - t->enabled_p ? 'E' : 'D', - t->step_count, t->pass_count); - - if (t->actions) - strcat (buf, "-"); - putpkt (buf); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); - if (strcmp (target_buf, "OK")) - error ("Target does not support tracepoints."); - - if (t->actions) - { - encode_actions (t, &tdp_actions, &stepping_actions); - old_chain = make_cleanup (free_actions_list_cleanup_wrapper, - tdp_actions); - (void) make_cleanup (free_actions_list_cleanup_wrapper, - stepping_actions); - - /* do_single_steps (t); */ - if (tdp_actions) - { - for (ndx = 0; tdp_actions[ndx]; ndx++) - { - QUIT; /* allow user to bail out with ^C */ - sprintf (buf, "QTDP:-%x:%s:%s%c", - t->number, tmp, /* address */ - tdp_actions[ndx], - ((tdp_actions[ndx + 1] || stepping_actions) - ? '-' : 0)); - putpkt (buf); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); - if (strcmp (target_buf, "OK")) - error ("Error on target while setting tracepoints."); - } - } - if (stepping_actions) - { - for (ndx = 0; stepping_actions[ndx]; ndx++) - { - QUIT; /* allow user to bail out with ^C */ - sprintf (buf, "QTDP:-%x:%s:%s%s%s", - t->number, tmp, /* address */ - ((ndx == 0) ? "S" : ""), - stepping_actions[ndx], - (stepping_actions[ndx + 1] ? "-" : "")); - putpkt (buf); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); - if (strcmp (target_buf, "OK")) - error ("Error on target while setting tracepoints."); - } - } + t->number_on_target = 0; + target_download_tracepoint (t); + t->number_on_target = t->number; + any_downloaded = 1; + } + VEC_free (breakpoint_p, tp_vec); + + /* No point in tracing without any tracepoints... */ + if (!any_downloaded) + error ("No tracepoints downloaded, not starting trace"); + + /* Send down all the trace state variables too. */ + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + { + target_download_trace_state_variable (tsv); + } + + /* Tell target to treat text-like sections as transparent. */ + target_trace_set_readonly_regions (); - do_cleanups (old_chain); - } - } - /* Tell target to treat text-like sections as transparent */ - remote_set_transparent_ranges (); - /* Now insert traps and begin collecting data */ - putpkt ("QTStart"); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); - if (strcmp (target_buf, "OK")) - error ("Bogus reply from target: %s", target_buf); - set_traceframe_num (-1); /* all old traceframes invalidated */ - set_tracepoint_num (-1); - set_traceframe_context (-1); - trace_running_p = 1; - if (trace_start_stop_hook) - trace_start_stop_hook (1, from_tty); + /* Now insert traps and begin collecting data. */ + target_trace_start (); - } - else - error ("Trace can only be run on remote targets."); + /* Reset our local state. */ + set_traceframe_num (-1); + set_tracepoint_num (-1); + set_traceframe_context (NULL); + current_trace_status()->running = 1; } /* tstop command */ static void trace_stop_command (char *args, int from_tty) -{ /* STUB_COMM IS_IMPLEMENTED */ - if (target_is_remote ()) - { - putpkt ("QTStop"); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); - if (strcmp (target_buf, "OK")) - error ("Bogus reply from target: %s", target_buf); - trace_running_p = 0; - if (trace_start_stop_hook) - trace_start_stop_hook (0, from_tty); - } - else - error ("Trace can only be run on remote targets."); +{ + stop_tracing (); } -unsigned long trace_running_p; +void +stop_tracing () +{ + target_trace_stop (); + /* should change in response to reply? */ + current_trace_status ()->running = 0; +} /* tstatus command */ static void trace_status_command (char *args, int from_tty) -{ /* STUB_COMM IS_IMPLEMENTED */ - if (target_is_remote ()) +{ + struct trace_status *ts = current_trace_status (); + int status; + + status = target_get_trace_status (ts); + + if (status == -1) + { + if (ts->from_file) + printf_filtered (_("Using a trace file.\n")); + else + { + printf_filtered (_("Trace can not be run on this target.\n")); + return; + } + } + + if (!ts->running_known) + { + printf_filtered (_("Run/stop status is unknown.\n")); + } + else if (ts->running) + { + printf_filtered (_("Trace is running on the target.\n")); + if (disconnected_tracing) + printf_filtered (_("Trace will continue if GDB disconnects.\n")); + else + printf_filtered (_("Trace will stop if GDB disconnects.\n")); + } + else { - putpkt ("qTStatus"); - remote_get_noisy_reply (target_buf, sizeof (target_buf)); + switch (ts->stop_reason) + { + case trace_never_run: + printf_filtered (_("No trace has been run on the target.\n")); + break; + case tstop_command: + printf_filtered (_("Trace stopped by a tstop command.\n")); + break; + case trace_buffer_full: + printf_filtered (_("Trace stopped because the buffer was full.\n")); + break; + case trace_disconnected: + printf_filtered (_("Trace stopped because of disconnection.\n")); + break; + case tracepoint_passcount: + /* FIXME account for number on target */ + printf_filtered (_("Trace stopped by tracepoint %d.\n"), + ts->stopping_tracepoint); + break; + case trace_stop_reason_unknown: + printf_filtered (_("Trace stopped for an unknown reason.\n")); + break; + default: + printf_filtered (_("Trace stopped for some other reason (%d).\n"), + ts->stop_reason); + break; + } + } - if (target_buf[0] != 'T' || - (target_buf[1] != '0' && target_buf[1] != '1')) - error ("Bogus reply from target: %s", target_buf); + if (ts->traceframe_count >= 0) + { + printf_filtered (_("Collected %d trace frames.\n"), + ts->traceframe_count); + } - /* exported for use by the GUI */ - trace_running_p = (target_buf[1] == '1'); + if (ts->buffer_free) + { + printf_filtered (_("Trace buffer has %llu bytes free.\n"), + ts->buffer_free); } + + /* Now report on what we're doing with tfind. */ + if (traceframe_number >= 0) + printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), + traceframe_number, tracepoint_number); else - error ("Trace can only be run on remote targets."); + printf_filtered (_("Not looking at any trace frame.\n")); +} + +void +disconnect_or_stop_tracing (int from_tty) +{ + /* It can happen that the target that was tracing went away on its + own, and we didn't notice. Get a status update, and if the + current target doesn't even do tracing, then assume it's not + running anymore. */ + if (target_get_trace_status (current_trace_status ()) < 0) + current_trace_status ()->running = 0; + + if (current_trace_status ()->running && from_tty) + { + int cont = query (_("Trace is running. Continue tracing after detach? ")); + /* Note that we send the query result without affecting the + user's setting of disconnected_tracing, so that the answer is + a one-time-only. */ + send_disconnected_tracing_value (cont); + + /* Also ensure that we do the equivalent of a tstop command if + tracing is not to continue after the detach. */ + if (!cont) + stop_tracing (); + } } -/* Worker function for the various flavors of the tfind command */ +/* Worker function for the various flavors of the tfind command. */ static void -finish_tfind_command (char *msg, - long sizeof_msg, +finish_tfind_command (enum trace_find_type type, int num, + ULONGEST addr1, ULONGEST addr2, int from_tty) { int target_frameno = -1, target_tracept = -1; - CORE_ADDR old_frame_addr; - struct symbol *old_func; + struct frame_id old_frame_id; char *reply; + struct breakpoint *tp; - old_frame_addr = get_frame_base (get_current_frame ()); - old_func = find_pc_function (read_pc ()); + old_frame_id = get_frame_id (get_current_frame ()); - putpkt (msg); - reply = remote_get_noisy_reply (msg, sizeof_msg); - - while (reply && *reply) - switch (*reply) - { - case 'F': - if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) - { - /* A request for a non-existant trace frame has failed. - Our response will be different, depending on FROM_TTY: - - If FROM_TTY is true, meaning that this command was - typed interactively by the user, then give an error - and DO NOT change the state of traceframe_number etc. - - However if FROM_TTY is false, meaning that we're either - in a script, a loop, or a user-defined command, then - DON'T give an error, but DO change the state of - traceframe_number etc. to invalid. - - The rationalle is that if you typed the command, you - might just have committed a typo or something, and you'd - like to NOT lose your current debugging state. However - if you're in a user-defined command or especially in a - loop, then you need a way to detect that the command - failed WITHOUT aborting. This allows you to write - scripts that search thru the trace buffer until the end, - and then continue on to do something else. */ - - if (from_tty) - error ("Target failed to find requested trace frame."); - else - { - if (info_verbose) - printf_filtered ("End of trace buffer.\n"); - /* The following will not recurse, since it's special-cased */ - trace_find_command ("-1", from_tty); - reply = NULL; /* break out of loop, - (avoid recursive nonsense) */ - } - } - break; - case 'T': - if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) - error ("Target failed to find requested trace frame."); - break; - case 'O': /* "OK"? */ - if (reply[1] == 'K' && reply[2] == '\0') - reply += 2; - else - error ("Bogus reply from target: %s", reply); - break; - default: - error ("Bogus reply from target: %s", reply); - } + target_frameno = target_trace_find (type, num, addr1, addr2, + &target_tracept); + + if (type == tfind_number + && num == -1 + && target_frameno == -1) + { + /* We told the target to get out of tfind mode, and it did. */ + } + else if (target_frameno == -1) + { + /* A request for a non-existant trace frame has failed. + Our response will be different, depending on FROM_TTY: + + If FROM_TTY is true, meaning that this command was + typed interactively by the user, then give an error + and DO NOT change the state of traceframe_number etc. + + However if FROM_TTY is false, meaning that we're either + in a script, a loop, or a user-defined command, then + DON'T give an error, but DO change the state of + traceframe_number etc. to invalid. + + The rationalle is that if you typed the command, you + might just have committed a typo or something, and you'd + like to NOT lose your current debugging state. However + if you're in a user-defined command or especially in a + loop, then you need a way to detect that the command + failed WITHOUT aborting. This allows you to write + scripts that search thru the trace buffer until the end, + and then continue on to do something else. */ + + if (from_tty) + error (_("Target failed to find requested trace frame.")); + else + { + if (info_verbose) + printf_filtered ("End of trace buffer.\n"); +#if 0 /* dubious now? */ + /* The following will not recurse, since it's + special-cased. */ + trace_find_command ("-1", from_tty); +#endif + } + } + + tp = get_tracepoint_by_number_on_target (target_tracept); - flush_cached_frames (); + reinit_frame_cache (); registers_changed (); - select_frame (get_current_frame ()); set_traceframe_num (target_frameno); - set_tracepoint_num (target_tracept); + set_tracepoint_num (tp ? tp->number : target_tracept); if (target_frameno == -1) - set_traceframe_context (-1); + set_traceframe_context (NULL); else - set_traceframe_context (read_pc ()); + set_traceframe_context (get_current_frame ()); - if (from_tty) + /* If we're in nonstop mode and getting out of looking at trace + frames, there won't be any current frame to go back to and + display. */ + if (from_tty + && (has_stack_frames () || traceframe_number >= 0)) { - int source_only; + enum print_what print_what; /* NOTE: in immitation of the step command, try to determine - whether we have made a transition from one function to another. - If so, we'll print the "stack frame" (ie. the new function and - it's arguments) -- otherwise we'll just show the new source line. - - This determination is made by checking (1) whether the current - function has changed, and (2) whether the current FP has changed. - Hack: if the FP wasn't collected, either at the current or the - previous frame, assume that the FP has NOT changed. */ - - if (old_func == find_pc_function (read_pc ()) && - (old_frame_addr == 0 || - get_frame_base (get_current_frame ()) == 0 || - old_frame_addr == get_frame_base (get_current_frame ()))) - source_only = -1; + whether we have made a transition from one function to + another. If so, we'll print the "stack frame" (ie. the new + function and it's arguments) -- otherwise we'll just show the + new source line. */ + + if (frame_id_eq (old_frame_id, + get_frame_id (get_current_frame ()))) + print_what = SRC_LINE; else - source_only = 1; + print_what = SRC_AND_LOC; - print_stack_frame (deprecated_selected_frame, - frame_relative_level (deprecated_selected_frame), - source_only); + print_stack_frame (get_selected_frame (NULL), 1, print_what); do_displays (); } } @@ -1973,42 +1795,38 @@ finish_tfind_command (char *msg, /* tfind command */ static void trace_find_command (char *args, int from_tty) -{ /* STUB_COMM PART_IMPLEMENTED */ - /* this should only be called with a numeric argument */ +{ /* this should only be called with a numeric argument */ int frameno = -1; - if (target_is_remote ()) + if (current_trace_status ()->running && !current_trace_status ()->from_file) + error ("May not look at trace frames while trace is running."); + + if (args == 0 || *args == 0) + { /* TFIND with no args means find NEXT trace frame. */ + if (traceframe_number == -1) + frameno = 0; /* "next" is first one */ + else + frameno = traceframe_number + 1; + } + else if (0 == strcmp (args, "-")) { - if (trace_find_hook) - trace_find_hook (args, from_tty); - - if (args == 0 || *args == 0) - { /* TFIND with no args means find NEXT trace frame. */ - if (traceframe_number == -1) - frameno = 0; /* "next" is first one */ - else - frameno = traceframe_number + 1; - } - else if (0 == strcmp (args, "-")) - { - if (traceframe_number == -1) - error ("not debugging trace buffer"); - else if (from_tty && traceframe_number == 0) - error ("already at start of trace buffer"); - - frameno = traceframe_number - 1; - } - else - frameno = parse_and_eval_long (args); + if (traceframe_number == -1) + error (_("not debugging trace buffer")); + else if (from_tty && traceframe_number == 0) + error (_("already at start of trace buffer")); + + frameno = traceframe_number - 1; + } + /* A hack to work around eval's need for fp to have been collected. */ + else if (0 == strcmp (args, "-1")) + frameno = -1; + else + frameno = parse_and_eval_long (args); - if (frameno < -1) - error ("invalid input (%d is less than zero)", frameno); + if (frameno < -1) + error (_("invalid input (%d is less than zero)"), frameno); - sprintf (target_buf, "QTFrame:%x", frameno); - finish_tfind_command (target_buf, sizeof (target_buf), from_tty); - } - else - error ("Trace can only be run on remote targets."); + finish_tfind_command (tfind_number, frameno, 0, 0, from_tty); } /* tfind end */ @@ -2035,143 +1853,140 @@ trace_find_start_command (char *args, int from_tty) /* tfind pc command */ static void trace_find_pc_command (char *args, int from_tty) -{ /* STUB_COMM PART_IMPLEMENTED */ +{ CORE_ADDR pc; char tmp[40]; - if (target_is_remote ()) - { - if (args == 0 || *args == 0) - pc = read_pc (); /* default is current pc */ - else - pc = parse_and_eval_address (args); + if (current_trace_status ()->running && !current_trace_status ()->from_file) + error ("May not look at trace frames while trace is running."); - sprintf_vma (tmp, pc); - sprintf (target_buf, "QTFrame:pc:%s", tmp); - finish_tfind_command (target_buf, sizeof (target_buf), from_tty); - } + if (args == 0 || *args == 0) + pc = regcache_read_pc (get_current_regcache ()); else - error ("Trace can only be run on remote targets."); + pc = parse_and_eval_address (args); + + finish_tfind_command (tfind_pc, 0, pc, 0, from_tty); } /* tfind tracepoint command */ static void trace_find_tracepoint_command (char *args, int from_tty) -{ /* STUB_COMM PART_IMPLEMENTED */ +{ int tdp; + struct breakpoint *tp; + + if (current_trace_status ()->running && !current_trace_status ()->from_file) + error ("May not look at trace frames while trace is running."); - if (target_is_remote ()) + if (args == 0 || *args == 0) { - if (args == 0 || *args == 0) - { - if (tracepoint_number == -1) - error ("No current tracepoint -- please supply an argument."); - else - tdp = tracepoint_number; /* default is current TDP */ - } + if (tracepoint_number == -1) + error (_("No current tracepoint -- please supply an argument.")); else - tdp = parse_and_eval_long (args); - - sprintf (target_buf, "QTFrame:tdp:%x", tdp); - finish_tfind_command (target_buf, sizeof (target_buf), from_tty); + tdp = tracepoint_number; /* default is current TDP */ } else - error ("Trace can only be run on remote targets."); + tdp = parse_and_eval_long (args); + + /* If we have the tracepoint on hand, use the number that the + target knows about (which may be different if we disconnected + and reconnected). */ + tp = get_tracepoint (tdp); + if (tp) + tdp = tp->number_on_target; + + finish_tfind_command (tfind_tp, tdp, 0, 0, from_tty); } /* TFIND LINE command: This command will take a sourceline for argument, just like BREAK - or TRACE (ie. anything that "decode_line_1" can handle). + or TRACE (ie. anything that "decode_line_1" can handle). With no argument, this command will find the next trace frame corresponding to a source line OTHER THAN THE CURRENT ONE. */ static void trace_find_line_command (char *args, int from_tty) -{ /* STUB_COMM PART_IMPLEMENTED */ +{ static CORE_ADDR start_pc, end_pc; struct symtabs_and_lines sals; struct symtab_and_line sal; struct cleanup *old_chain; char startpc_str[40], endpc_str[40]; - if (target_is_remote ()) - { - 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[0] = sal; - } - else - { - sals = decode_line_spec (args, 1); - sal = sals.sals[0]; - } + if (current_trace_status ()->running && !current_trace_status ()->from_file) + error ("May not look at trace frames while trace is running."); - old_chain = make_cleanup (xfree, sals.sals); - if (sal.symtab == 0) - { - printf_filtered ("TFIND: No line number information available"); - if (sal.pc != 0) - { - /* This is useful for "info line *0x7f34". If we can't tell the - user about a source line, at least let them have the symbolic - address. */ - printf_filtered (" for address "); - wrap_here (" "); - print_address (sal.pc, gdb_stdout); - printf_filtered (";\n -- will attempt to find by PC. \n"); - } - else - { - printf_filtered (".\n"); - return; /* no line, no PC; what can we do? */ - } - } - else if (sal.line > 0 - && find_line_pc_range (sal, &start_pc, &end_pc)) + 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[0] = sal; + } + else + { + sals = decode_line_spec (args, 1); + sal = sals.sals[0]; + } + + old_chain = make_cleanup (xfree, sals.sals); + if (sal.symtab == 0) + { + printf_filtered ("TFIND: No line number information available"); + if (sal.pc != 0) { - if (start_pc == end_pc) - { - printf_filtered ("Line %d of \"%s\"", - sal.line, sal.symtab->filename); - wrap_here (" "); - printf_filtered (" is at address "); - print_address (start_pc, gdb_stdout); - wrap_here (" "); - printf_filtered (" but contains no code.\n"); - sal = find_pc_line (start_pc, 0); - if (sal.line > 0 && - find_line_pc_range (sal, &start_pc, &end_pc) && - start_pc != end_pc) - printf_filtered ("Attempting to find line %d instead.\n", - sal.line); - else - error ("Cannot find a good line."); - } - } - else - /* Is there any case in which we get here, and have an address - which the user would want to see? If we have debugging symbols - and no line numbers? */ - error ("Line number %d is out of range for \"%s\".\n", - sal.line, sal.symtab->filename); - - sprintf_vma (startpc_str, start_pc); - sprintf_vma (endpc_str, end_pc - 1); - if (args && *args) /* find within range of stated line */ - sprintf (target_buf, "QTFrame:range:%s:%s", startpc_str, endpc_str); - else /* find OUTSIDE OF range of CURRENT line */ - sprintf (target_buf, "QTFrame:outside:%s:%s", startpc_str, endpc_str); - finish_tfind_command (target_buf, sizeof (target_buf), from_tty); - do_cleanups (old_chain); + /* This is useful for "info line *0x7f34". If we can't + tell the user about a source line, at least let them + have the symbolic address. */ + printf_filtered (" for address "); + wrap_here (" "); + print_address (get_current_arch (), sal.pc, gdb_stdout); + printf_filtered (";\n -- will attempt to find by PC. \n"); + } + else + { + printf_filtered (".\n"); + return; /* No line, no PC; what can we do? */ + } } + else if (sal.line > 0 + && find_line_pc_range (sal, &start_pc, &end_pc)) + { + if (start_pc == end_pc) + { + printf_filtered ("Line %d of \"%s\"", + sal.line, sal.symtab->filename); + wrap_here (" "); + printf_filtered (" is at address "); + print_address (get_current_arch (), start_pc, gdb_stdout); + wrap_here (" "); + printf_filtered (" but contains no code.\n"); + sal = find_pc_line (start_pc, 0); + if (sal.line > 0 + && find_line_pc_range (sal, &start_pc, &end_pc) + && start_pc != end_pc) + printf_filtered ("Attempting to find line %d instead.\n", + sal.line); + else + error (_("Cannot find a good line.")); + } + } + else + /* Is there any case in which we get here, and have an address + which the user would want to see? If we have debugging + symbols and no line numbers? */ + error (_("Line number %d is out of range for \"%s\"."), + sal.line, sal.symtab->filename); + + /* Find within range of stated line. */ + if (args && *args) + finish_tfind_command (tfind_range, 0, start_pc, end_pc - 1, from_tty); else - error ("Trace can only be run on remote targets."); + finish_tfind_command (tfind_outside, 0, start_pc, end_pc - 1, from_tty); + do_cleanups (old_chain); } /* tfind range command */ @@ -2182,35 +1997,30 @@ trace_find_range_command (char *args, int from_tty) char start_str[40], stop_str[40]; char *tmp; - if (target_is_remote ()) - { - if (args == 0 || *args == 0) - { /* XXX FIXME: what should default behavior be? */ - printf_filtered ("Usage: tfind range ,\n"); - return; - } + if (current_trace_status ()->running && !current_trace_status ()->from_file) + error ("May not look at trace frames while trace is running."); - if (0 != (tmp = strchr (args, ','))) - { - *tmp++ = '\0'; /* terminate start address */ - while (isspace ((int) *tmp)) - tmp++; - start = parse_and_eval_address (args); - stop = parse_and_eval_address (tmp); - } - else - { /* no explicit end address? */ - start = parse_and_eval_address (args); - stop = start + 1; /* ??? */ - } + if (args == 0 || *args == 0) + { /* XXX FIXME: what should default behavior be? */ + printf_filtered ("Usage: tfind range ,\n"); + return; + } - sprintf_vma (start_str, start); - sprintf_vma (stop_str, stop); - sprintf (target_buf, "QTFrame:range:%s:%s", start_str, stop_str); - finish_tfind_command (target_buf, sizeof (target_buf), from_tty); + if (0 != (tmp = strchr (args, ','))) + { + *tmp++ = '\0'; /* terminate start address */ + while (isspace ((int) *tmp)) + tmp++; + start = parse_and_eval_address (args); + stop = parse_and_eval_address (tmp); } else - error ("Trace can only be run on remote targets."); + { /* no explicit end address? */ + start = parse_and_eval_address (args); + stop = start + 1; /* ??? */ + } + + finish_tfind_command (tfind_range, 0, start, stop, from_tty); } /* tfind outside command */ @@ -2221,126 +2031,52 @@ trace_find_outside_command (char *args, int from_tty) char start_str[40], stop_str[40]; char *tmp; - if (target_is_remote ()) - { - if (args == 0 || *args == 0) - { /* XXX FIXME: what should default behavior be? */ - printf_filtered ("Usage: tfind outside ,\n"); - return; - } + if (current_trace_status ()->running && !current_trace_status ()->from_file) + error ("May not look at trace frames while trace is running."); - if (0 != (tmp = strchr (args, ','))) - { - *tmp++ = '\0'; /* terminate start address */ - while (isspace ((int) *tmp)) - tmp++; - start = parse_and_eval_address (args); - stop = parse_and_eval_address (tmp); - } - else - { /* no explicit end address? */ - start = parse_and_eval_address (args); - stop = start + 1; /* ??? */ - } + if (args == 0 || *args == 0) + { /* XXX FIXME: what should default behavior be? */ + printf_filtered ("Usage: tfind outside ,\n"); + return; + } - sprintf_vma (start_str, start); - sprintf_vma (stop_str, stop); - sprintf (target_buf, "QTFrame:outside:%s:%s", start_str, stop_str); - finish_tfind_command (target_buf, sizeof (target_buf), from_tty); + if (0 != (tmp = strchr (args, ','))) + { + *tmp++ = '\0'; /* terminate start address */ + while (isspace ((int) *tmp)) + tmp++; + start = parse_and_eval_address (args); + stop = parse_and_eval_address (tmp); } else - error ("Trace can only be run on remote targets."); + { /* no explicit end address? */ + start = parse_and_eval_address (args); + stop = start + 1; /* ??? */ + } + + finish_tfind_command (tfind_outside, 0, start, stop, from_tty); } -/* save-tracepoints command */ +/* info scope command: list the locals for a scope. */ static void -tracepoint_save_command (char *args, int from_tty) +scope_info (char *args, int from_tty) { - struct tracepoint *tp; - struct action_line *line; - FILE *fp; - char *i1 = " ", *i2 = " "; - char *indent, *actionline, *pathname; - char tmp[40]; + struct symtabs_and_lines sals; + struct symbol *sym; + struct minimal_symbol *msym; + struct block *block; + char **canonical, *symname, *save_args = args; + struct dict_iterator iter; + int j, count = 0; + struct gdbarch *gdbarch; + int regno; if (args == 0 || *args == 0) - error ("Argument required (file name in which to save tracepoints"); + error (_("requires an argument (function, line or *addr) to define a scope")); - if (tracepoint_chain == 0) - { - warning ("save-tracepoints: no tracepoints to save.\n"); - return; - } - - pathname = tilde_expand (args); - if (!(fp = fopen (pathname, "w"))) - error ("Unable to open file '%s' for saving tracepoints (%s)", - args, safe_strerror (errno)); - xfree (pathname); - - ALL_TRACEPOINTS (tp) - { - if (tp->addr_string) - fprintf (fp, "trace %s\n", tp->addr_string); - else - { - sprintf_vma (tmp, tp->address); - fprintf (fp, "trace *0x%s\n", tmp); - } - - if (tp->pass_count) - fprintf (fp, " passcount %d\n", tp->pass_count); - - if (tp->actions) - { - fprintf (fp, " actions\n"); - indent = i1; - for (line = tp->actions; line; line = line->next) - { - struct cmd_list_element *cmd; - - QUIT; /* allow user to bail out with ^C */ - actionline = line->action; - while (isspace ((int) *actionline)) - actionline++; - - fprintf (fp, "%s%s\n", indent, actionline); - if (*actionline != '#') /* skip for comment lines */ - { - cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1); - if (cmd == 0) - error ("Bad action list item: %s", actionline); - if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) - indent = i2; - else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) - indent = i1; - } - } - } - } - fclose (fp); - if (from_tty) - printf_filtered ("Tracepoints saved to file '%s'.\n", args); - return; -} - -/* info scope command: list the locals for a scope. */ -static void -scope_info (char *args, int from_tty) -{ - struct symtabs_and_lines sals; - struct symbol *sym; - struct minimal_symbol *msym; - struct block *block; - char **canonical, *symname, *save_args = args; - int i, j, count = 0; - - if (args == 0 || *args == 0) - error ("requires an argument (function, line or *addr) to define a scope"); - - sals = decode_line_1 (&args, 1, NULL, 0, &canonical); - if (sals.nelts == 0) - return; /* presumably decode_line_1 has already warned */ + sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); + if (sals.nelts == 0) + return; /* presumably decode_line_1 has already warned */ /* Resolve line numbers to PC */ resolve_sal_pc (&sals.sals[0]); @@ -2349,17 +2085,19 @@ scope_info (char *args, int from_tty) while (block != 0) { QUIT; /* allow user to bail out with ^C */ - ALL_BLOCK_SYMBOLS (block, i, sym) + ALL_BLOCK_SYMBOLS (block, iter, sym) { QUIT; /* allow user to bail out with ^C */ if (count == 0) printf_filtered ("Scope for %s:\n", save_args); count++; - symname = SYMBOL_NAME (sym); + symname = SYMBOL_PRINT_NAME (sym); if (symname == NULL || *symname == '\0') continue; /* probably botched, certainly useless */ + gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); + printf_filtered ("Symbol %s is ", symname); switch (SYMBOL_CLASS (sym)) { @@ -2382,14 +2120,27 @@ scope_info (char *args, int from_tty) break; case LOC_STATIC: printf_filtered ("in static storage at address "); - print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); + printf_filtered ("%s", paddress (gdbarch, + SYMBOL_VALUE_ADDRESS (sym))); break; case LOC_REGISTER: - printf_filtered ("a local variable in register $%s", - REGISTER_NAME (SYMBOL_VALUE (sym))); + /* GDBARCH is the architecture associated with the objfile + the symbol is defined in; the target architecture may be + different, and may provide additional registers. However, + we do not know the target architecture at this point. + We assume the objfile architecture will contain all the + standard registers that occur in debug info in that + objfile. */ + regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); + + if (SYMBOL_IS_ARGUMENT (sym)) + printf_filtered ("an argument in register $%s", + gdbarch_register_name (gdbarch, regno)); + else + printf_filtered ("a local variable in register $%s", + gdbarch_register_name (gdbarch, regno)); break; case LOC_ARG: - case LOC_LOCAL_ARG: printf_filtered ("an argument at stack/frame offset %ld", SYMBOL_VALUE (sym)); break; @@ -2401,54 +2152,47 @@ scope_info (char *args, int from_tty) printf_filtered ("a reference argument at offset %ld", SYMBOL_VALUE (sym)); break; - case LOC_REGPARM: - printf_filtered ("an argument in register $%s", - REGISTER_NAME (SYMBOL_VALUE (sym))); - break; case LOC_REGPARM_ADDR: + /* Note comment at LOC_REGISTER. */ + regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); printf_filtered ("the address of an argument, in register $%s", - REGISTER_NAME (SYMBOL_VALUE (sym))); + gdbarch_register_name (gdbarch, regno)); break; case LOC_TYPEDEF: printf_filtered ("a typedef.\n"); continue; case LOC_LABEL: printf_filtered ("a label at address "); - print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); + printf_filtered ("%s", paddress (gdbarch, + SYMBOL_VALUE_ADDRESS (sym))); break; case LOC_BLOCK: printf_filtered ("a function at address "); - print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), 1, - gdb_stdout); - break; - case LOC_BASEREG: - printf_filtered ("a variable at offset %ld from register $%s", - SYMBOL_VALUE (sym), - REGISTER_NAME (SYMBOL_BASEREG (sym))); - break; - case LOC_BASEREG_ARG: - printf_filtered ("an argument at offset %ld from register $%s", - SYMBOL_VALUE (sym), - REGISTER_NAME (SYMBOL_BASEREG (sym))); + printf_filtered ("%s", + paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); break; case LOC_UNRESOLVED: - msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); + msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), + NULL, NULL); if (msym == NULL) printf_filtered ("Unresolved Static"); else { printf_filtered ("static storage at address "); - print_address_numeric (SYMBOL_VALUE_ADDRESS (msym), 1, - gdb_stdout); + printf_filtered ("%s", + paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); } break; case LOC_OPTIMIZED_OUT: printf_filtered ("optimized out.\n"); continue; + case LOC_COMPUTED: + SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); + break; } if (SYMBOL_TYPE (sym)) printf_filtered (", length %d.\n", - TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); + TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); } if (BLOCK_FUNCTION (block)) break; @@ -2472,31 +2216,25 @@ replace_comma (void *data) static void trace_dump_command (char *args, int from_tty) { - struct tracepoint *t; + struct regcache *regcache; + struct gdbarch *gdbarch; + struct breakpoint *t; struct action_line *action; char *action_exp, *next_comma; struct cleanup *old_cleanups; int stepping_actions = 0; int stepping_frame = 0; - if (!target_is_remote ()) - { - error ("Trace can only be run on remote targets."); - return; - } - if (tracepoint_number == -1) { - warning ("No current trace frame."); + warning (_("No current trace frame.")); return; } - ALL_TRACEPOINTS (t) - if (t->number == tracepoint_number) - break; + t = get_tracepoint (tracepoint_number); if (t == NULL) - error ("No known tracepoint matches 'current' tracepoint #%d.", + error (_("No known tracepoint matches 'current' tracepoint #%d."), tracepoint_number); old_cleanups = make_cleanup (null_cleanup, NULL); @@ -2508,7 +2246,10 @@ trace_dump_command (char *args, int from_tty) to the tracepoint PC. If not, then the current frame was collected during single-stepping. */ - stepping_frame = (t->address != read_pc ()); + regcache = get_current_regcache (); + gdbarch = get_regcache_arch (regcache); + + stepping_frame = (t->loc->address != (regcache_read_pc (regcache))); for (action = t->actions; action; action = action->next) { @@ -2527,7 +2268,7 @@ trace_dump_command (char *args, int from_tty) cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); if (cmd == 0) - error ("Bad action list item: %s", action_exp); + error (_("Bad action list item: %s"), action_exp); if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) stepping_actions = 1; @@ -2536,10 +2277,11 @@ trace_dump_command (char *args, int from_tty) else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) { /* Display the collected data. - For the trap frame, display only what was collected at the trap. - Likewise for stepping frames, display only what was collected - while stepping. This means that the two boolean variables, - STEPPING_FRAME and STEPPING_ACTIONS should be equal. */ + For the trap frame, display only what was collected at + the trap. Likewise for stepping frames, display only + what was collected while stepping. This means that the + two boolean variables, STEPPING_FRAME and + STEPPING_ACTIONS should be equal. */ if (stepping_frame == stepping_actions) { do @@ -2580,6 +2322,191 @@ trace_dump_command (char *args, int from_tty) discard_cleanups (old_cleanups); } +extern int trace_regblock_size; + +static void +trace_save_command (char *args, int from_tty) +{ + char **argv; + char *filename = NULL, *pathname; + int target_does_save = 0; + struct cleanup *cleanup; + struct trace_status *ts = current_trace_status (); + int err, status; + FILE *fp; + struct uploaded_tp *uploaded_tps = NULL, *utp; + struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; + int a; + LONGEST gotten = 0; + ULONGEST offset = 0; +#define MAX_TRACE_UPLOAD 2000 + gdb_byte buf[MAX_TRACE_UPLOAD]; + int written; + + if (args == NULL) + error_no_arg (_("file in which to save trace data")); + + argv = gdb_buildargv (args); + make_cleanup_freeargv (argv); + + for (; *argv; ++argv) + { + if (strcmp (*argv, "-r") == 0) + target_does_save = 1; + else if (**argv == '-') + error (_("unknown option `%s'"), *argv); + else + filename = *argv; + } + + if (!filename) + error_no_arg (_("file in which to save trace data")); + + /* If the target is to save the data to a file on its own, then just + send the command and be done with it. */ + if (target_does_save) + { + err = target_save_trace_data (filename); + if (err < 0) + error (_("Target failed to save trace data to '%s'."), + filename); + return; + } + + /* Get the trace status first before opening the file, so if the + target is losing, we can get out without touching files. */ + status = target_get_trace_status (ts); + + pathname = tilde_expand (args); + cleanup = make_cleanup (xfree, pathname); + + fp = fopen (pathname, "w"); + if (!fp) + error (_("Unable to open file '%s' for saving trace data (%s)"), + args, safe_strerror (errno)); + make_cleanup_fclose (fp); + + /* Write a file header, with a high-bit-set char to indicate a + binary file, plus a hint as what this file is, and a version + number in case of future needs. */ + written = fwrite ("\x7fTRACE0\n", 8, 1, fp); + if (written < 8) + perror_with_name (pathname); + + /* Write descriptive info. */ + + /* Write out the size of a register block. */ + fprintf (fp, "R %x\n", trace_regblock_size); + + /* Write out status of the tracing run (aka "tstatus" info). */ + fprintf (fp, "status %c;%s:%x;tframes:%x;tfree:%llx\n", + (ts->running ? '1' : '0'), + stop_reason_names[ts->stop_reason], ts->stopping_tracepoint, + ts->traceframe_count, ts->buffer_free); + + /* Note that we want to upload tracepoints and save those, rather + than simply writing out the local ones, because the user may have + changed tracepoints in GDB in preparation for a future tracing + run, or maybe just mass-deleted all types of breakpoints as part + of cleaning up. So as not to contaminate the session, leave the + data in its uploaded form, don't make into real tracepoints. */ + + /* Get trace state variables first, they may be checked when parsing + uploaded commands. */ + + target_upload_trace_state_variables (&uploaded_tsvs); + + for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) + { + char *buf = ""; + + if (utsv->name) + { + buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); + bin2hex ((gdb_byte *) (utsv->name), buf, 0); + } + + fprintf (fp, "tsv %x:%s:%x:%s\n", + utsv->number, phex_nz (utsv->initial_value, 8), + utsv->builtin, buf); + + if (utsv->name) + xfree (buf); + } + + free_uploaded_tsvs (&uploaded_tsvs); + + target_upload_tracepoints (&uploaded_tps); + + for (utp = uploaded_tps; utp; utp = utp->next) + { + fprintf (fp, "tp T%x:%s:%c:%x:%x", + utp->number, phex_nz (utp->addr, sizeof (utp->addr)), + (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); + if (utp->type == bp_fast_tracepoint) + fprintf (fp, ":F%x", utp->orig_size); + if (utp->cond) + fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, + utp->cond); + fprintf (fp, "\n"); + for (a = 0; a < utp->numactions; ++a) + fprintf (fp, "tp A%x:%s:%s\n", + utp->number, phex_nz (utp->addr, sizeof (utp->addr)), + utp->actions[a]); + for (a = 0; a < utp->num_step_actions; ++a) + fprintf (fp, "tp S%x:%s:%s\n", + utp->number, phex_nz (utp->addr, sizeof (utp->addr)), + utp->step_actions[a]); + } + + free_uploaded_tps (&uploaded_tps); + + /* Mark the end of the definition section. */ + fprintf (fp, "\n"); + + /* Get and write the trace data proper. We ask for big blocks, in + the hopes of efficiency, but will take less if the target has + packet size limitations or some such. */ + while (1) + { + gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); + if (gotten < 0) + error (_("Failure to get requested trace buffer data")); + /* No more data is forthcoming, we're done. */ + if (gotten == 0) + break; + written = fwrite (buf, gotten, 1, fp); + if (written < gotten) + perror_with_name (pathname); + offset += gotten; + } + + /* Mark the end of trace data. */ + written = fwrite (&gotten, 4, 1, fp); + if (written < 4) + perror_with_name (pathname); + + do_cleanups (cleanup); + if (from_tty) + printf_filtered (_("Trace data saved to file '%s'.\n"), args); +} + +/* Tell the target what to do with an ongoing tracing run if GDB + disconnects for some reason. */ + +void +send_disconnected_tracing_value (int value) +{ + target_set_disconnected_tracing (value); +} + +static void +set_disconnected_tracing (char *args, int from_tty, + struct cmd_list_element *c) +{ + send_disconnected_tracing_value (disconnected_tracing); +} + /* Convert the memory pointed to by mem into hex, placing result in buf. * Return a pointer to the last char put in buf (null) * "stolen" from sparc-stub.c @@ -2587,10 +2514,10 @@ trace_dump_command (char *args, int from_tty) static const char hexchars[] = "0123456789abcdef"; -static unsigned char * -mem2hex (unsigned char *mem, unsigned char *buf, int count) +static char * +mem2hex (gdb_byte *mem, char *buf, int count) { - unsigned char ch; + gdb_byte ch; while (count-- > 0) { @@ -2612,22 +2539,1012 @@ get_traceframe_number (void) } +/* Given a number and address, return an uploaded tracepoint with that + number, creating if necessary. */ + +struct uploaded_tp * +get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) +{ + struct uploaded_tp *utp; + + 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->number = num; + utp->addr = addr; + utp->next = *utpp; + *utpp = utp; + return utp; +} + +static void +free_uploaded_tps (struct uploaded_tp **utpp) +{ + struct uploaded_tp *next_one; + + while (*utpp) + { + next_one = (*utpp)->next; + xfree (*utpp); + *utpp = next_one; + } +} + +/* Given a number and address, return an uploaded tracepoint with that + number, creating if necessary. */ + +struct uploaded_tsv * +get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) +{ + struct uploaded_tsv *utsv; + + 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->number = num; + utsv->next = *utsvp; + *utsvp = utsv; + return utsv; +} + +static void +free_uploaded_tsvs (struct uploaded_tsv **utsvp) +{ + struct uploaded_tsv *next_one; + + while (*utsvp) + { + next_one = (*utsvp)->next; + xfree (*utsvp); + *utsvp = next_one; + } +} + +/* Look for an existing tracepoint that seems similar enough to the + uploaded one. Enablement isn't compared, because the user can + toggle that freely, and may have done so in anticipation of the + next trace run. */ + +struct breakpoint * +find_matching_tracepoint (struct uploaded_tp *utp) +{ + VEC(breakpoint_p) *tp_vec = all_tracepoints (); + int ix; + struct breakpoint *t; + struct bp_location *loc; + + for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) + { + if (t->type == utp->type + && t->step_count == utp->step + && t->pass_count == utp->pass + /* FIXME also test conditionals and actions */ + ) + { + /* Scan the locations for an address match. */ + for (loc = t->loc; loc; loc = loc->next) + { + if (loc->address == utp->addr) + return t; + } + } + } + return NULL; +} + +/* Given a list of tracepoints uploaded from a target, attempt to + match them up with existing tracepoints, and create new ones if not + found. */ + +void +merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) +{ + struct uploaded_tp *utp; + struct breakpoint *t; + + /* Look for GDB tracepoints that match up with our uploaded versions. */ + for (utp = *uploaded_tps; utp; utp = utp->next) + { + t = find_matching_tracepoint (utp); + if (t) + printf_filtered (_("Assuming tracepoint %d is same as target's tracepoint %d at %s.\n"), + t->number, utp->number, paddress (get_current_arch (), utp->addr)); + else + { + t = create_tracepoint_from_upload (utp); + if (t) + printf_filtered (_("Created tracepoint %d for target's tracepoint %d at %s.\n"), + t->number, utp->number, paddress (get_current_arch (), utp->addr)); + else + printf_filtered (_("Failed to create tracepoint for target's tracepoint %d at %s, skipping it.\n"), + utp->number, paddress (get_current_arch (), utp->addr)); + } + /* Whether found or created, record the number used by the + target, to help with mapping target tracepoints back to their + counterparts here. */ + if (t) + t->number_on_target = utp->number; + } + + free_uploaded_tps (uploaded_tps); +} + +/* Trace state variables don't have much to identify them beyond their + name, so just use that to detect matches. */ + +struct trace_state_variable * +find_matching_tsv (struct uploaded_tsv *utsv) +{ + if (!utsv->name) + return NULL; + + return find_trace_state_variable (utsv->name); +} + +struct trace_state_variable * +create_tsv_from_upload (struct uploaded_tsv *utsv) +{ + const char *namebase; + char buf[20]; + int try_num = 0; + struct trace_state_variable *tsv; + + if (utsv->name) + { + namebase = utsv->name; + sprintf (buf, "%s", namebase); + } + else + { + namebase = "__tsv"; + sprintf (buf, "%s_%d", namebase, try_num++); + } + + /* Fish for a name that is not in use. */ + /* (should check against all internal vars?) */ + while (find_trace_state_variable (buf)) + sprintf (buf, "%s_%d", namebase, try_num++); + + /* We have an available name, create the variable. */ + tsv = create_trace_state_variable (xstrdup (buf)); + tsv->initial_value = utsv->initial_value; + tsv->builtin = utsv->builtin; + + return tsv; +} + +/* Given a list of uploaded trace state variables, try to match them + up with existing variables, or create additional ones. */ + +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 + the merge, so clear them all in anticipation. */ + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + tsv->number = 0; + + for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) + { + tsv = find_matching_tsv (utsv); + if (tsv) + printf_filtered (_("Assuming trace state variable $%s is same as target's variable %d.\n"), + tsv->name, utsv->number); + else + { + tsv = create_tsv_from_upload (utsv); + printf_filtered (_("Created trace state variable $%s for target's variable %d.\n"), + tsv->name, utsv->number); + } + /* Give precedence to numberings that come from the target. */ + if (tsv) + tsv->number = utsv->number; + } + + /* Renumber everything that didn't get a target-assigned number. */ + highest = 0; + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + if (tsv->number > highest) + highest = tsv->number; + + ++highest; + for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) + if (tsv->number == 0) + tsv->number = highest++; + + free_uploaded_tsvs (uploaded_tsvs); +} + +/* target tfile command */ + +struct target_ops tfile_ops; + +/* Fill in tfile_ops with its defined operations and properties. */ + +#define TRACE_HEADER_SIZE 8 + +char *trace_filename; +int trace_fd = -1; +off_t trace_frames_offset; +off_t cur_offset; +int cur_data_size; +int trace_regblock_size; + +static void tfile_interp_line (char *line, + struct uploaded_tp **utpp, + struct uploaded_tsv **utsvp); + +static void +tfile_open (char *filename, int from_tty) +{ + 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 */ + char byte; + int bytes, i, gotten; + 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 = open (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); + + push_target (&tfile_ops); + + trace_filename = xstrdup (filename); + trace_fd = scratch_chan; + + bytes = 0; + /* Read the file header and test for validity. */ + gotten = read (trace_fd, &header, TRACE_HEADER_SIZE); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < TRACE_HEADER_SIZE) + error (_("Premature end of file while reading trace file")); + + bytes += TRACE_HEADER_SIZE; + if (!(header[0] == 0x7f + && (strncmp (header + 1, "TRACE0\n", 7) == 0))) + error (_("File is not a valid trace file.")); + + trace_regblock_size = 0; + ts = current_trace_status (); + /* We know we're working with a file. */ + ts->from_file = 1; + /* 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; + + /* Read through a section of newline-terminated lines that + define things like tracepoints. */ + i = 0; + while (1) + { + gotten = read (trace_fd, &byte, 1); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 1) + error (_("Premature end of file while reading trace file")); + + ++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")); + } + + /* 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); + + /* 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 (ts->traceframe_count <= 0) + { + warning ("No traceframes present in this file."); + return; + } + +#define TFILE_PID (1) + inferior_appeared (current_inferior (), TFILE_PID); + inferior_ptid = pid_to_ptid (TFILE_PID); + add_thread_silent (inferior_ptid); + + post_create_inferior (&tfile_ops, from_tty); + +#if 0 + /* FIXME this will get defined in MI patch submission */ + tfind_1 (tfind_number, 0, 0, 0, 0); +#endif +} + +/* 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. */ + +extern char *unpack_varlen_hex (char *buff, ULONGEST *result); + +void +parse_trace_status (char *line, struct trace_status *ts) +{ + char *p = line, *p1, *p_temp; + ULONGEST val; + + ts->running_known = 1; + ts->running = (*p++ == '1'); + ts->stop_reason = trace_stop_reason_unknown; + while (*p++) + { + p1 = strchr (p, ':'); + if (p1 == NULL) + error (_("Malformed trace status, at %s\n\ +Status line: '%s'\n"), p, line); + if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) + { + p = unpack_varlen_hex (++p1, &val); + ts->stop_reason = trace_buffer_full; + } + else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) + { + p = unpack_varlen_hex (++p1, &val); + ts->stop_reason = trace_never_run; + } + else if (strncmp (p, stop_reason_names[tracepoint_passcount], p1 - p) == 0) + { + p = unpack_varlen_hex (++p1, &val); + ts->stop_reason = tracepoint_passcount; + ts->stopping_tracepoint = val; + } + else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) + { + p = unpack_varlen_hex (++p1, &val); + ts->stop_reason = tstop_command; + } + if (strncmp (p, "tframes", p1 - p) == 0) + { + p = unpack_varlen_hex (++p1, &val); + ts->traceframe_count = val; + } + if (strncmp (p, "tfree", p1 - p) == 0) + { + p = unpack_varlen_hex (++p1, &val); + ts->buffer_free = val; + } + else + { + /* Silently skip unknown optional info. */ + p_temp = strchr (p1 + 1, ';'); + if (p_temp) + p = p_temp; + else + /* Must be at the end. */ + break; + } + } +} + +/* Given a line of text defining a tracepoint or tracepoint action, parse + it into an "uploaded tracepoint". */ + +void +parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) +{ + char *p; + char piece; + ULONGEST num, addr, step, pass, orig_size, xlen; + int enabled, i; + enum bptype type; + char *cond; + struct uploaded_tp *utp = NULL; + + p = line; + /* Both tracepoint and action definitions start with the same number + and address sequence. */ + piece = *p++; + p = unpack_varlen_hex (p, &num); + p++; /* skip a colon */ + p = unpack_varlen_hex (p, &addr); + p++; /* skip a colon */ + if (piece == 'T') + { + 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++; /* skip a colon */ + if (*p == 'F') + { + type = bp_fast_tracepoint; + p++; + p = unpack_varlen_hex (p, &orig_size); + } + else if (*p == 'X') + { + p++; + p = unpack_varlen_hex (p, &xlen); + p++; /* skip a comma */ + cond = (char *) xmalloc (2 * xlen + 1); + strncpy (cond, p, 2 * xlen); + cond[2 * xlen] = '\0'; + p += 2 * xlen; + } + else + warning ("Unrecognized char '%c' in tracepoint definition, skipping rest", *p); + } + utp = get_uploaded_tp (num, addr, utpp); + utp->type = type; + utp->enabled = enabled; + utp->step = step; + utp->pass = pass; + utp->cond = cond; + } + else if (piece == 'A') + { + utp = get_uploaded_tp (num, addr, utpp); + utp->actions[utp->numactions++] = xstrdup (p); + } + else if (piece == 'S') + { + utp = get_uploaded_tp (num, addr, utpp); + utp->step_actions[utp->num_step_actions++] = xstrdup (p); + } + else + { + error ("Invalid tracepoint piece"); + } +} + +/* Convert a textual description of a trace state variable into an + uploaded object. */ + +void +parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) +{ + char *p, *buf; + ULONGEST num, initval, builtin; + int end; + struct uploaded_tsv *utsv = NULL; + + buf = alloca (strlen (line)); + + p = line; + p = unpack_varlen_hex (p, &num); + p++; /* skip a colon */ + p = unpack_varlen_hex (p, &initval); + p++; /* skip a colon */ + p = unpack_varlen_hex (p, &builtin); + p++; /* skip a colon */ + end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); + buf[end] = '\0'; + + utsv = get_uploaded_tsv (num, utsvp); + utsv->initial_value = initval; + utsv->builtin = builtin; + utsv->name = xstrdup (buf); +} + +/* Close the trace file and generally clean up. */ + +static void +tfile_close (int quitting) +{ + 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; + if (trace_filename) + xfree (trace_filename); +} + +static void +tfile_files_info (struct target_ops *t) +{ + /* (it would be useful to mention the name of the file) */ + printf_filtered ("Looking at a trace file.\n"); +} + +/* The trace status for a file is that tracing can never be run. */ + +static int +tfile_get_trace_status (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; +} + +/* 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 ULONGEST +tfile_get_traceframe_address (off_t tframe_offset) +{ + ULONGEST addr = 0; + short tpnum; + struct breakpoint *tp; + off_t saved_offset = cur_offset; + int gotten; + + /* FIXME dig pc out of collected registers */ + + /* Fall back to using tracepoint address. */ + lseek (trace_fd, tframe_offset, SEEK_SET); + gotten = read (trace_fd, &tpnum, 2); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 2) + error (_("Premature end of file while reading trace file")); + + tp = get_tracepoint_by_number_on_target (tpnum); + if (tp && tp->loc) + addr = tp->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 (enum trace_find_type type, int num, + ULONGEST addr1, ULONGEST addr2, int *tpp) +{ + short tpnum; + int tfnum = 0, found = 0, gotten; + int data_size; + struct breakpoint *tp; + off_t offset, tframe_offset; + ULONGEST tfaddr; + + lseek (trace_fd, trace_frames_offset, SEEK_SET); + offset = trace_frames_offset; + while (1) + { + tframe_offset = offset; + gotten = read (trace_fd, &tpnum, 2); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 2) + error (_("Premature end of file while reading trace file")); + offset += 2; + if (tpnum == 0) + break; + gotten = read (trace_fd, &data_size, 4); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 4) + error (_("Premature end of file while reading trace file")); + offset += 4; + switch (type) + { + case tfind_number: + if (tfnum == num) + found = 1; + break; + 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) + { + printf_filtered ("Found traceframe %d.\n", tfnum); + 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; +} + +/* 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); + char block_type; + int i, pos, offset, regn, regsize, gotten; + unsigned short mlen; + char *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); + + lseek (trace_fd, cur_offset, SEEK_SET); + pos = 0; + while (pos < cur_data_size) + { + gotten = read (trace_fd, &block_type, 1); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 1) + error (_("Premature end of file while reading trace file")); + + ++pos; + switch (block_type) + { + case 'R': + gotten = read (trace_fd, regs, trace_regblock_size); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < trace_regblock_size) + error (_("Premature end of file while reading trace file")); + + /* 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_valid_p (regcache, regn)) + { + 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; + case 'M': + lseek (trace_fd, 8, SEEK_CUR); + gotten = read (trace_fd, &mlen, 2); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 2) + error (_("Premature end of file while reading trace file")); + lseek (trace_fd, mlen, SEEK_CUR); + pos += (8 + 2 + mlen); + break; + case 'V': + lseek (trace_fd, 4 + 8, SEEK_CUR); + pos += (4 + 8); + break; + default: + error ("Unknown block type '%c' (0x%x) in trace frame", + block_type, block_type); + break; + } + } +} + +static LONGEST +tfile_xfer_partial (struct target_ops *ops, enum target_object object, + const char *annex, gdb_byte *readbuf, + const gdb_byte *writebuf, ULONGEST offset, LONGEST len) +{ + char block_type; + int pos, gotten; + ULONGEST maddr; + unsigned short mlen; + + /* We're only doing regular memory for now. */ + if (object != TARGET_OBJECT_MEMORY) + return -1; + + if (readbuf == NULL) + error ("tfile_xfer_partial: trace file is read-only"); + + lseek (trace_fd, cur_offset, SEEK_SET); + pos = 0; + while (pos < cur_data_size) + { + gotten = read (trace_fd, &block_type, 1); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 1) + error (_("Premature end of file while reading trace file")); + ++pos; + switch (block_type) + { + case 'R': + lseek (trace_fd, trace_regblock_size, SEEK_CUR); + pos += trace_regblock_size; + break; + case 'M': + gotten = read (trace_fd, &maddr, 8); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 8) + error (_("Premature end of file while reading trace file")); + + gotten = read (trace_fd, &mlen, 2); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 2) + error (_("Premature end of file while reading trace file")); + if (maddr <= offset && (offset + len) <= (maddr + mlen)) + { + gotten = read (trace_fd, readbuf, mlen); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < mlen) + error (_("Premature end of file qwhile reading trace file")); + + return mlen; + } + lseek (trace_fd, mlen, SEEK_CUR); + pos += (8 + 2 + mlen); + break; + case 'V': + lseek (trace_fd, 4 + 8, SEEK_CUR); + pos += (4 + 8); + break; + default: + error ("Unknown block type '%c' (0x%x) in traceframe", + block_type, block_type); + break; + } + } + /* Indicate failure to find the requested memory block. */ + return -1; +} + +/* 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 (int tsvnum, LONGEST *val) +{ + char block_type; + int pos, vnum, gotten; + unsigned short mlen; + + lseek (trace_fd, cur_offset, SEEK_SET); + pos = 0; + while (pos < cur_data_size) + { + gotten = read (trace_fd, &block_type, 1); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 1) + error (_("Premature end of file while reading trace file")); + ++pos; + switch (block_type) + { + case 'R': + lseek (trace_fd, trace_regblock_size, SEEK_CUR); + pos += trace_regblock_size; + break; + case 'M': + lseek (trace_fd, 8, SEEK_CUR); + gotten = read (trace_fd, &mlen, 2); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 2) + error (_("Premature end of file while reading trace file")); + lseek (trace_fd, mlen, SEEK_CUR); + pos += (8 + 2 + mlen); + break; + case 'V': + gotten = read (trace_fd, &vnum, 4); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 4) + error (_("Premature end of file while reading trace file")); + if (tsvnum == vnum) + { + gotten = read (trace_fd, val, 8); + if (gotten < 0) + perror_with_name (trace_filename); + else if (gotten < 8) + error (_("Premature end of file while reading trace file")); + return 1; + } + lseek (trace_fd, 8, SEEK_CUR); + pos += (4 + 8); + break; + default: + error ("Unknown block type '%c' (0x%x) in traceframe", + block_type, block_type); + break; + } + } + /* Didn't find anything. */ + return 0; +} + +static int +tfile_has_memory (struct target_ops *ops) +{ + return 1; +} + +static int +tfile_has_stack (struct target_ops *ops) +{ + return 1; +} + +static int +tfile_has_registers (struct target_ops *ops) +{ + return 1; +} + +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_trace_find = tfile_trace_find; + tfile_ops.to_get_trace_state_variable_value = tfile_get_trace_state_variable_value; + /* core_stratum might seem more logical, but GDB doesn't like having + more than one core_stratum vector. */ + tfile_ops.to_stratum = process_stratum; + 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_magic = OPS_MAGIC; +} + /* module initialization */ void _initialize_tracepoint (void) { struct cmd_list_element *c; - tracepoint_chain = 0; - tracepoint_count = 0; traceframe_number = -1; tracepoint_number = -1; - set_internalvar (lookup_internalvar ("tpnum"), - value_from_longest (builtin_type_int, (LONGEST) 0)); - set_internalvar (lookup_internalvar ("trace_frame"), - value_from_longest (builtin_type_int, (LONGEST) - 1)); - if (tracepoint_list.list == NULL) { tracepoint_list.listsize = 128; @@ -2656,149 +3573,152 @@ _initialize_tracepoint (void) } add_info ("scope", scope_info, - "List the variables local to a scope"); + _("List the variables local to a scope")); add_cmd ("tracepoints", class_trace, NULL, - "Tracing of program execution without stopping the program.", + _("Tracing of program execution without stopping the program."), &cmdlist); - add_info ("tracepoints", tracepoints_info, - "Status of tracepoints, or tracepoint number NUMBER.\n\ -Convenience variable \"$tpnum\" contains the number of the\n\ -last tracepoint set."); - - add_info_alias ("tp", "tracepoints", 1); - - c = add_com ("save-tracepoints", class_trace, tracepoint_save_command, - "Save current tracepoint definitions as a script.\n\ -Use the 'source' command in another debug session to restore them."); - set_cmd_completer (c, filename_completer); - add_com ("tdump", class_trace, trace_dump_command, - "Print everything collected at the current tracepoint."); - - add_prefix_cmd ("tfind", class_trace, trace_find_command, - "Select a trace frame;\n\ -No argument means forward by one frame; '-' meand backward by one frame.", + _("Print everything collected at the current tracepoint.")); + + add_com ("tsave", class_trace, trace_save_command, _("\ +Save the trace data to a file.\n\ +Use the '-r' option to direct the target to save directly to the file,\n\ +using its own filesystem.")); + + c = add_com ("tvariable", class_trace, trace_variable_command,_("\ +Define a trace state variable.\n\ +Argument is a $-prefixed name, optionally followed\n\ +by '=' and an expression that sets the initial value\n\ +at the start of tracing.")); + set_cmd_completer (c, expression_completer); + + add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ +Delete one or more trace state variables.\n\ +Arguments are the names of the variables to delete.\n\ +If no arguments are supplied, delete all variables."), &deletelist); + /* FIXME add a trace variable completer */ + + add_info ("tvariables", tvariables_info, _("\ +Status of trace state variables and their values.\n\ +")); + + add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ +Select a trace frame;\n\ +No argument means forward by one frame; '-' means backward by one frame."), &tfindlist, "tfind ", 1, &cmdlist); - add_cmd ("outside", class_trace, trace_find_outside_command, - "Select a trace frame whose PC is outside the given \ -range.\nUsage: tfind outside addr1, addr2", + add_cmd ("outside", class_trace, trace_find_outside_command, _("\ +Select a trace frame whose PC is outside the given range (exclusive).\n\ +Usage: tfind outside addr1, addr2"), &tfindlist); - add_cmd ("range", class_trace, trace_find_range_command, - "Select a trace frame whose PC is in the given range.\n\ -Usage: tfind range addr1,addr2", + add_cmd ("range", class_trace, trace_find_range_command, _("\ +Select a trace frame whose PC is in the given range (inclusive).\n\ +Usage: tfind range addr1,addr2"), &tfindlist); - add_cmd ("line", class_trace, trace_find_line_command, - "Select a trace frame by source line.\n\ + add_cmd ("line", class_trace, trace_find_line_command, _("\ +Select a trace frame by source line.\n\ Argument can be a line number (with optional source file), \n\ a function name, or '*' followed by an address.\n\ -Default argument is 'the next source line that was traced'.", +Default argument is 'the next source line that was traced'."), &tfindlist); - add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, - "Select a trace frame by tracepoint number.\n\ -Default is the tracepoint for the current trace frame.", + add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ +Select a trace frame by tracepoint number.\n\ +Default is the tracepoint for the current trace frame."), &tfindlist); - add_cmd ("pc", class_trace, trace_find_pc_command, - "Select a trace frame by PC.\n\ -Default is the current PC, or the PC of the current trace frame.", + add_cmd ("pc", class_trace, trace_find_pc_command, _("\ +Select a trace frame by PC.\n\ +Default is the current PC, or the PC of the current trace frame."), &tfindlist); - add_cmd ("end", class_trace, trace_find_end_command, - "Synonym for 'none'.\n\ -De-select any trace frame and resume 'live' debugging.", + add_cmd ("end", class_trace, trace_find_end_command, _("\ +Synonym for 'none'.\n\ +De-select any trace frame and resume 'live' debugging."), &tfindlist); add_cmd ("none", class_trace, trace_find_none_command, - "De-select any trace frame and resume 'live' debugging.", + _("De-select any trace frame and resume 'live' debugging."), &tfindlist); add_cmd ("start", class_trace, trace_find_start_command, - "Select the first trace frame in the trace buffer.", + _("Select the first trace frame in the trace buffer."), &tfindlist); add_com ("tstatus", class_trace, trace_status_command, - "Display the status of the current trace data collection."); + _("Display the status of the current trace data collection.")); add_com ("tstop", class_trace, trace_stop_command, - "Stop trace data collection."); + _("Stop trace data collection.")); add_com ("tstart", class_trace, trace_start_command, - "Start trace data collection."); - - add_com ("passcount", class_trace, trace_pass_command, - "Set the passcount for a tracepoint.\n\ -The trace will end when the tracepoint has been passed 'count' times.\n\ -Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ -if TPNUM is omitted, passcount refers to the last tracepoint defined."); + _("Start trace data collection.")); - add_com ("end", class_trace, end_actions_pseudocommand, - "Ends a list of commands or actions.\n\ + add_com ("end", class_trace, end_actions_pseudocommand, _("\ +Ends a list of commands or actions.\n\ Several GDB commands allow you to enter a list of commands or actions.\n\ Entering \"end\" on a line by itself is the normal way to terminate\n\ such a list.\n\n\ -Note: the \"end\" command cannot be used at the gdb prompt."); +Note: the \"end\" command cannot be used at the gdb prompt.")); - add_com ("while-stepping", class_trace, while_stepping_pseudocommand, - "Specify single-stepping behavior at a tracepoint.\n\ + 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\ one or more \"collect\" commands, to specify what to collect\n\ while single-stepping.\n\n\ -Note: this command can only be used in a tracepoint \"actions\" list."); +Note: this command can only be used in a tracepoint \"actions\" list.")); add_com_alias ("ws", "while-stepping", class_alias, 0); add_com_alias ("stepping", "while-stepping", class_alias, 0); - add_com ("collect", class_trace, collect_pseudocommand, - "Specify one or more data items to be collected at a tracepoint.\n\ + add_com ("collect", class_trace, collect_pseudocommand, _("\ +Specify one or more data items to be collected at a tracepoint.\n\ Accepts a comma-separated list of (one or more) expressions. GDB will\n\ collect all data (variables, registers) referenced by that expression.\n\ Also accepts the following special arguments:\n\ $regs -- all registers.\n\ $args -- all function arguments.\n\ $locals -- all variables local to the block/function scope.\n\ -Note: this command can only be used in a tracepoint \"actions\" list."); +Note: this command can only be used in a tracepoint \"actions\" list.")); + + add_com ("teval", class_trace, teval_pseudocommand, _("\ +Specify one or more expressions to be evaluated at a tracepoint.\n\ +Accepts a comma-separated list of (one or more) expressions.\n\ +The result of each evaluation will be discarded.\n\ +Note: this command can only be used in a tracepoint \"actions\" list.")); - add_com ("actions", class_trace, trace_actions_command, - "Specify the actions to be taken at a tracepoint.\n\ + add_com ("actions", class_trace, trace_actions_command, _("\ +Specify the actions to be taken at a tracepoint.\n\ Tracepoint actions may include collecting of specified data, \n\ single-stepping, or enabling/disabling other tracepoints, \n\ -depending on target's capabilities."); - - add_cmd ("tracepoints", class_trace, delete_trace_command, - "Delete specified tracepoints.\n\ -Arguments are tracepoint numbers, separated by spaces.\n\ -No argument means delete all tracepoints.", - &deletelist); - - add_cmd ("tracepoints", class_trace, disable_trace_command, - "Disable specified tracepoints.\n\ -Arguments are tracepoint numbers, separated by spaces.\n\ -No argument means disable all tracepoints.", - &disablelist); - - add_cmd ("tracepoints", class_trace, enable_trace_command, - "Enable specified tracepoints.\n\ -Arguments are tracepoint numbers, separated by spaces.\n\ -No argument means enable all tracepoints.", - &enablelist); - - c = add_com ("trace", class_trace, trace_command, - "Set a tracepoint at a specified line or function or address.\n\ -Argument may be a line number, function name, or '*' plus an address.\n\ -For a line number or function, trace at the start of its code.\n\ -If an address is specified, trace at that exact address.\n\n\ -Do \"help tracepoints\" for info on other tracepoint commands."); - set_cmd_completer (c, location_completer); - - add_com_alias ("tp", "trace", class_alias, 0); - add_com_alias ("tr", "trace", class_alias, 1); - add_com_alias ("tra", "trace", class_alias, 1); - add_com_alias ("trac", "trace", class_alias, 1); +depending on target's capabilities.")); + + default_collect = xstrdup (""); + add_setshow_string_cmd ("default-collect", class_trace, + &default_collect, _("\ +Set the list of expressions to collect by default"), _("\ +Show the list of expressions to collect by default"), NULL, + NULL, NULL, + &setlist, &showlist); + + add_setshow_boolean_cmd ("disconnected-tracing", no_class, + &disconnected_tracing, _("\ +Set whether tracing continues after GDB disconnects."), _("\ +Show whether tracing continues after GDB disconnects."), _("\ +Use this to continue a tracing run even if GDB disconnects\n\ +or detaches from the target. You can reconnect later and look at\n\ +trace data collected in the meantime."), + set_disconnected_tracing, + NULL, + &setlist, + &showlist); + + init_tfile_ops (); + + add_target (&tfile_ops); }