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From: Tom Tromey <tromey@sourceware.org> To: gdb-cvs@sourceware.org Subject: [binutils-gdb] Convert base breakpoints to vtable ops Date: Fri, 29 Apr 2022 22:23:05 +0000 (GMT) [thread overview] Message-ID: <20220429222305.8ED283858434@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2b5ab5b8514550782e1ee3107f4b3e0984a5a6a9 commit 2b5ab5b8514550782e1ee3107f4b3e0984a5a6a9 Author: Tom Tromey <tom@tromey.com> Date: Sat Jan 15 13:56:38 2022 -0700 Convert base breakpoints to vtable ops This converts base breakpoints to use vtable_breakpoint_ops. Diff: --- gdb/break-catch-throw.c | 2 +- gdb/breakpoint.c | 55 +++++++++++++++++++++---------------------------- gdb/breakpoint.h | 11 ++++++++++ 3 files changed, 36 insertions(+), 32 deletions(-) diff --git a/gdb/break-catch-throw.c b/gdb/break-catch-throw.c index cec292427d4..62a404f33ac 100644 --- a/gdb/break-catch-throw.c +++ b/gdb/break-catch-throw.c @@ -67,7 +67,7 @@ static struct breakpoint_ops gnu_v3_exception_catchpoint_ops; /* The type of an exception catchpoint. */ -struct exception_catchpoint : public breakpoint +struct exception_catchpoint : public base_breakpoint { /* The kind of exception catchpoint. */ diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c index ab755972369..ebbad3204d7 100644 --- a/gdb/breakpoint.c +++ b/gdb/breakpoint.c @@ -7932,7 +7932,7 @@ enable_breakpoints_after_startup (void) static struct breakpoint * new_single_step_breakpoint (int thread, struct gdbarch *gdbarch) { - std::unique_ptr<breakpoint> b (new breakpoint ()); + std::unique_ptr<breakpoint> b (new momentary_breakpoint ()); init_raw_breakpoint_without_location (b.get (), gdbarch, bp_single_step, &momentary_breakpoint_ops); @@ -11798,22 +11798,22 @@ struct breakpoint_ops vtable_breakpoint_ops = /* Default breakpoint_ops methods. */ -static void -bkpt_re_set (struct breakpoint *b) +void +base_breakpoint::re_set () { /* FIXME: is this still reachable? */ - if (breakpoint_event_location_empty_p (b)) + if (breakpoint_event_location_empty_p (this)) { /* Anything without a location can't be re-set. */ - delete_breakpoint (b); + delete_breakpoint (this); return; } - breakpoint_re_set_default (b); + breakpoint_re_set_default (this); } -static int -bkpt_insert_location (struct bp_location *bl) +int +base_breakpoint::insert_location (struct bp_location *bl) { CORE_ADDR addr = bl->target_info.reqstd_address; @@ -11826,8 +11826,9 @@ bkpt_insert_location (struct bp_location *bl) return target_insert_breakpoint (bl->gdbarch, &bl->target_info); } -static int -bkpt_remove_location (struct bp_location *bl, enum remove_bp_reason reason) +int +base_breakpoint::remove_location (struct bp_location *bl, + enum remove_bp_reason reason) { if (bl->loc_type == bp_loc_hardware_breakpoint) return target_remove_hw_breakpoint (bl->gdbarch, &bl->target_info); @@ -11835,10 +11836,11 @@ bkpt_remove_location (struct bp_location *bl, enum remove_bp_reason reason) return target_remove_breakpoint (bl->gdbarch, &bl->target_info, reason); } -static int -bkpt_breakpoint_hit (const struct bp_location *bl, - const address_space *aspace, CORE_ADDR bp_addr, - const target_waitstatus &ws) +int +base_breakpoint::breakpoint_hit (const struct bp_location *bl, + const address_space *aspace, + CORE_ADDR bp_addr, + const target_waitstatus &ws) { if (ws.kind () != TARGET_WAITKIND_STOPPED || ws.sig () != GDB_SIGNAL_TRAP) @@ -11870,7 +11872,7 @@ dprintf_breakpoint_hit (const struct bp_location *bl, return 0; } - return bkpt_breakpoint_hit (bl, aspace, bp_addr, ws); + return bl->owner->breakpoint_hit (bl, aspace, bp_addr, ws); } static int @@ -11974,12 +11976,11 @@ bkpt_print_recreate (struct breakpoint *tp, struct ui_file *fp) print_recreate_thread (tp, fp); } -static std::vector<symtab_and_line> -bkpt_decode_location (struct breakpoint *b, - struct event_location *location, - struct program_space *search_pspace) +std::vector<symtab_and_line> +base_breakpoint::decode_location (struct event_location *location, + struct program_space *search_pspace) { - return decode_location_default (b, location, search_pspace); + return decode_location_default (this, location, search_pspace); } /* Virtual table for internal breakpoints. */ @@ -12126,7 +12127,7 @@ longjmp_breakpoint::~longjmp_breakpoint () static int bkpt_probe_insert_location (struct bp_location *bl) { - int v = bkpt_insert_location (bl); + int v = bl->owner->insert_location (bl); if (v == 0) { @@ -12145,7 +12146,7 @@ bkpt_probe_remove_location (struct bp_location *bl, /* Let's clear the semaphore before removing the location. */ bl->probe.prob->clear_semaphore (bl->probe.objfile, bl->gdbarch); - return bkpt_remove_location (bl, reason); + return bl->owner->remove_location (bl, reason); } static void @@ -14561,19 +14562,11 @@ initialize_breakpoint_ops (void) breakpoints (real breakpoints, i.e., user "break" breakpoints, internal and momentary breakpoints, etc.). */ ops = &bkpt_base_breakpoint_ops; - *ops = base_breakpoint_ops; - ops->re_set = bkpt_re_set; - ops->insert_location = bkpt_insert_location; - ops->remove_location = bkpt_remove_location; - ops->breakpoint_hit = bkpt_breakpoint_hit; - ops->create_sals_from_location = create_sals_from_location_default; - ops->create_breakpoints_sal = create_breakpoints_sal_default; - ops->decode_location = bkpt_decode_location; + *ops = vtable_breakpoint_ops; /* The breakpoint_ops structure to be used in regular breakpoints. */ ops = &bkpt_breakpoint_ops; *ops = bkpt_base_breakpoint_ops; - ops->re_set = bkpt_re_set; ops->resources_needed = bkpt_resources_needed; ops->print_it = bkpt_print_it; ops->print_mention = bkpt_print_mention; diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h index a4b3ce17b01..de1ef5ef6b3 100644 --- a/gdb/breakpoint.h +++ b/gdb/breakpoint.h @@ -945,6 +945,17 @@ struct breakpoint breakpoints, etc.). */ struct base_breakpoint : public breakpoint { + void re_set () override; + 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; + std::vector<symtab_and_line> decode_location + (struct event_location *location, + struct program_space *search_pspace) override; }; /* An instance of this type is used to represent a watchpoint. */
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