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From: Tom Tromey <tromey@sourceware.org> To: gdb-cvs@sourceware.org Subject: [binutils-gdb] Convert break-catch-sig to use vtable ops Date: Fri, 29 Apr 2022 22:22:25 +0000 (GMT) [thread overview] Message-ID: <20220429222225.056A43857C4D@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=c3ee64d0d812c88579d3a81de0cf5da0dcb7828e commit c3ee64d0d812c88579d3a81de0cf5da0dcb7828e Author: Tom Tromey <tom@tromey.com> Date: Fri Jan 14 18:47:29 2022 -0700 Convert break-catch-sig to use vtable ops This converts break-catch-sig.c to use vtable_breakpoint_ops. Diff: --- gdb/break-catch-sig.c | 150 ++++++++++++++++++++------------------------------ 1 file changed, 61 insertions(+), 89 deletions(-) diff --git a/gdb/break-catch-sig.c b/gdb/break-catch-sig.c index 06e521d9bf3..8de11c96db8 100644 --- a/gdb/break-catch-sig.c +++ b/gdb/break-catch-sig.c @@ -35,12 +35,24 @@ #define INTERNAL_SIGNAL(x) ((x) == GDB_SIGNAL_TRAP || (x) == GDB_SIGNAL_INT) -/* An instance of this type is used to represent a signal catchpoint. - A breakpoint is really of this type iff its ops pointer points to - SIGNAL_CATCHPOINT_OPS. */ +/* An instance of this type is used to represent a signal + catchpoint. */ struct signal_catchpoint : public breakpoint { + int insert_location (struct bp_location *) override; + int remove_location (struct bp_location *, + enum remove_bp_reason reason) override; + int breakpoint_hit (const struct bp_location *bl, + const address_space *aspace, + CORE_ADDR bp_addr, + const target_waitstatus &ws) override; + enum print_stop_action print_it (struct bpstat *bs) override; + bool print_one (struct bp_location **) override; + void print_mention () override; + void print_recreate (struct ui_file *fp) override; + int explains_signal (enum gdb_signal) override; + /* Signal numbers used for the 'catch signal' feature. If no signal has been specified for filtering, it is empty. Otherwise, it holds a list of all signals to be caught. */ @@ -55,10 +67,6 @@ struct signal_catchpoint : public breakpoint bool catch_all; }; -/* The breakpoint_ops structure to be used in signal catchpoints. */ - -static struct breakpoint_ops signal_catchpoint_ops; - /* Count of each signal. */ static unsigned int signal_catch_counts[GDB_SIGNAL_LAST]; @@ -81,11 +89,10 @@ signal_to_name_or_int (enum gdb_signal sig) \f -/* Implement the "insert_location" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "insert_location" method for signal catchpoints. */ -static int -signal_catchpoint_insert_location (struct bp_location *bl) +int +signal_catchpoint::insert_location (struct bp_location *bl) { struct signal_catchpoint *c = (struct signal_catchpoint *) bl->owner; @@ -108,12 +115,11 @@ signal_catchpoint_insert_location (struct bp_location *bl) return 0; } -/* Implement the "remove_location" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "remove_location" method for signal catchpoints. */ -static int -signal_catchpoint_remove_location (struct bp_location *bl, - enum remove_bp_reason reason) +int +signal_catchpoint::remove_location (struct bp_location *bl, + enum remove_bp_reason reason) { struct signal_catchpoint *c = (struct signal_catchpoint *) bl->owner; @@ -142,14 +148,13 @@ signal_catchpoint_remove_location (struct bp_location *bl, return 0; } -/* Implement the "breakpoint_hit" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "breakpoint_hit" method for signal catchpoints. */ -static int -signal_catchpoint_breakpoint_hit (const struct bp_location *bl, - const address_space *aspace, - CORE_ADDR bp_addr, - const target_waitstatus &ws) +int +signal_catchpoint::breakpoint_hit (const struct bp_location *bl, + const address_space *aspace, + CORE_ADDR bp_addr, + const target_waitstatus &ws) { const struct signal_catchpoint *c = (const struct signal_catchpoint *) bl->owner; @@ -175,13 +180,11 @@ signal_catchpoint_breakpoint_hit (const struct bp_location *bl, return c->catch_all || !INTERNAL_SIGNAL (signal_number); } -/* Implement the "print_it" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "print_it" method for signal catchpoints. */ -static enum print_stop_action -signal_catchpoint_print_it (bpstat *bs) +enum print_stop_action +signal_catchpoint::print_it (bpstat *bs) { - struct breakpoint *b = bs->breakpoint_at; struct target_waitstatus last; const char *signal_name; struct ui_out *uiout = current_uiout; @@ -190,22 +193,19 @@ signal_catchpoint_print_it (bpstat *bs) signal_name = signal_to_name_or_int (last.sig ()); - annotate_catchpoint (b->number); + annotate_catchpoint (number); maybe_print_thread_hit_breakpoint (uiout); - gdb_printf (_("Catchpoint %d (signal %s), "), b->number, signal_name); + gdb_printf (_("Catchpoint %d (signal %s), "), number, signal_name); return PRINT_SRC_AND_LOC; } -/* Implement the "print_one" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "print_one" method for signal catchpoints. */ -static bool -signal_catchpoint_print_one (struct breakpoint *b, - struct bp_location **last_loc) +bool +signal_catchpoint::print_one (struct bp_location **last_loc) { - struct signal_catchpoint *c = (struct signal_catchpoint *) b; struct value_print_options opts; struct ui_out *uiout = current_uiout; @@ -218,17 +218,17 @@ signal_catchpoint_print_one (struct breakpoint *b, uiout->field_skip ("addr"); annotate_field (5); - if (c->signals_to_be_caught.size () > 1) + if (signals_to_be_caught.size () > 1) uiout->text ("signals \""); else uiout->text ("signal \""); - if (!c->signals_to_be_caught.empty ()) + if (!signals_to_be_caught.empty ()) { std::string text; bool first = true; - for (gdb_signal iter : c->signals_to_be_caught) + for (gdb_signal iter : signals_to_be_caught) { const char *name = signal_to_name_or_int (iter); @@ -242,7 +242,7 @@ signal_catchpoint_print_one (struct breakpoint *b, } else uiout->field_string ("what", - c->catch_all ? "<any signal>" : "<standard signals>", + catch_all ? "<any signal>" : "<standard signals>", metadata_style.style ()); uiout->text ("\" "); @@ -252,22 +252,19 @@ signal_catchpoint_print_one (struct breakpoint *b, return true; } -/* Implement the "print_mention" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "print_mention" method for signal catchpoints. */ -static void -signal_catchpoint_print_mention (struct breakpoint *b) +void +signal_catchpoint::print_mention () { - struct signal_catchpoint *c = (struct signal_catchpoint *) b; - - if (!c->signals_to_be_caught.empty ()) + if (!signals_to_be_caught.empty ()) { - if (c->signals_to_be_caught.size () > 1) - gdb_printf (_("Catchpoint %d (signals"), b->number); + if (signals_to_be_caught.size () > 1) + gdb_printf (_("Catchpoint %d (signals"), number); else - gdb_printf (_("Catchpoint %d (signal"), b->number); + gdb_printf (_("Catchpoint %d (signal"), number); - for (gdb_signal iter : c->signals_to_be_caught) + for (gdb_signal iter : signals_to_be_caught) { const char *name = signal_to_name_or_int (iter); @@ -275,37 +272,33 @@ signal_catchpoint_print_mention (struct breakpoint *b) } gdb_printf (")"); } - else if (c->catch_all) - gdb_printf (_("Catchpoint %d (any signal)"), b->number); + else if (catch_all) + gdb_printf (_("Catchpoint %d (any signal)"), number); else - gdb_printf (_("Catchpoint %d (standard signals)"), b->number); + gdb_printf (_("Catchpoint %d (standard signals)"), number); } -/* Implement the "print_recreate" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "print_recreate" method for signal catchpoints. */ -static void -signal_catchpoint_print_recreate (struct breakpoint *b, struct ui_file *fp) +void +signal_catchpoint::print_recreate (struct ui_file *fp) { - struct signal_catchpoint *c = (struct signal_catchpoint *) b; - gdb_printf (fp, "catch signal"); - if (!c->signals_to_be_caught.empty ()) + if (!signals_to_be_caught.empty ()) { - for (gdb_signal iter : c->signals_to_be_caught) + for (gdb_signal iter : signals_to_be_caught) gdb_printf (fp, " %s", signal_to_name_or_int (iter)); } - else if (c->catch_all) + else if (catch_all) gdb_printf (fp, " all"); gdb_putc ('\n', fp); } -/* Implement the "explains_signal" breakpoint_ops method for signal - catchpoints. */ +/* Implement the "explains_signal" method for signal catchpoints. */ -static int -signal_catchpoint_explains_signal (struct breakpoint *b, enum gdb_signal sig) +int +signal_catchpoint::explains_signal (enum gdb_signal sig) { return 1; } @@ -324,7 +317,7 @@ create_signal_catchpoint (int tempflag, std::vector<gdb_signal> &&filter, struct gdbarch *gdbarch = get_current_arch (); std::unique_ptr<signal_catchpoint> c (new signal_catchpoint ()); - init_catchpoint (c.get (), gdbarch, tempflag, NULL, &signal_catchpoint_ops); + init_catchpoint (c.get (), gdbarch, tempflag, NULL, &vtable_breakpoint_ops); c->signals_to_be_caught = std::move (filter); c->catch_all = catch_all; @@ -408,31 +401,10 @@ catch_signal_command (const char *arg, int from_tty, create_signal_catchpoint (tempflag, std::move (filter), catch_all); } -static void -initialize_signal_catchpoint_ops (void) -{ - struct breakpoint_ops *ops; - - initialize_breakpoint_ops (); - - ops = &signal_catchpoint_ops; - *ops = base_breakpoint_ops; - ops->insert_location = signal_catchpoint_insert_location; - ops->remove_location = signal_catchpoint_remove_location; - ops->breakpoint_hit = signal_catchpoint_breakpoint_hit; - ops->print_it = signal_catchpoint_print_it; - ops->print_one = signal_catchpoint_print_one; - ops->print_mention = signal_catchpoint_print_mention; - ops->print_recreate = signal_catchpoint_print_recreate; - ops->explains_signal = signal_catchpoint_explains_signal; -} - void _initialize_break_catch_sig (); void _initialize_break_catch_sig () { - initialize_signal_catchpoint_ops (); - add_catch_command ("signal", _("\ Catch signals by their names and/or numbers.\n\ Usage: catch signal [[NAME|NUMBER] [NAME|NUMBER]...|all]\n\
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