From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59CD7C433F5 for ; Fri, 11 Feb 2022 10:35:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349066AbiBKKfW (ORCPT ); Fri, 11 Feb 2022 05:35:22 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:32836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348515AbiBKKfC (ORCPT ); Fri, 11 Feb 2022 05:35:02 -0500 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60ACEF00 for ; Fri, 11 Feb 2022 02:34:56 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id 3-20020a250103000000b0061d99b7d0b8so17924459ybb.13 for ; Fri, 11 Feb 2022 02:34:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=q8G14SAEa7uvFBFKYlo5q0orDY3ugG7lRFTfspG1Us0=; b=FwigVHlABX1R9xopZ1QIVsESmoMSH6rcpeBlxM37cWyrtfo8Na0UI9actTepeXh0Ae nfo8awP8PtTXMgd92hbHUSnujM/pMAbNuvCT/+UJrNWBi/hSUB7XliUkgGyxYv5nmCBS 1sUBkEWmzzpatEbfWDQL4enX1ikwEJRjKtb5/g9ba+aBBj1i6T/wofaFMxZZcy+Ed2mt DkMG+M26abzPDmKK1zxnlnqCFnfNEVCW4qQHeBl3w/CfeijdPZ6VxYUWoplVrCW+z5jD eSs7vYtD/HdKtc3A5A0W5mMCwPlziwEujBlZx4EmWILDJKQXh9aulbsGcFPlifEYvhfr PFog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=q8G14SAEa7uvFBFKYlo5q0orDY3ugG7lRFTfspG1Us0=; b=cmG9mxdfvqHeffWIKYizYvTVi6BE0dFSeAdnWVmaLy3RXyrWWyBL8H+Wnn0AyvX2bW 1o0eCT3dknKHKWWCqbSfcJp82gippiAGTajA424uM90XHZogg6uHMZA7VITy6b2m/Fpa WaCg+ypzhiPKi1VICLjalP+DZlagAWwLiQX1jpUwZDwWHL/zkryZNQw8z3dYsS5htSyk dblxDvfXJQeEhQtenV7OTJ5LRJEEYKw+q/lodY/QThVnAVV5Nwm3Nm9YrKWgM7zDs5D4 s5tvnLCB8LpdW/Z7SyTOKsjcic7zci6nyWYpuIMxmckttS+dfdVJsQb8NEEjgOxWtUAD GY4Q== X-Gm-Message-State: AOAM532OIrroCol0Lsj7Y0hgrM3rPiHVzgA7gGiiwgW3iqwOLtL25POa eoy1EqHekkZf1kCyPppHFVTPyBL8HV8Y X-Google-Smtp-Source: ABdhPJz6VWRRigwUwx8Pzmr7Q/qEuaNnd4Q5QLLowxQSdqlEbXhZEZbQyT6q2aT5O8E6vi6g/JZla4Hm8u6+ X-Received: from irogers.svl.corp.google.com ([2620:15c:2cd:202:2d98:3ad9:1d8a:fb9b]) (user=irogers job=sendgmr) by 2002:a81:e40a:: with SMTP id r10mr906703ywl.276.1644575695597; Fri, 11 Feb 2022 02:34:55 -0800 (PST) Date: Fri, 11 Feb 2022 02:34:07 -0800 In-Reply-To: <20220211103415.2737789-1-irogers@google.com> Message-Id: <20220211103415.2737789-15-irogers@google.com> Mime-Version: 1.0 References: <20220211103415.2737789-1-irogers@google.com> X-Mailer: git-send-email 2.35.1.265.g69c8d7142f-goog Subject: [PATCH v3 14/22] perf maps: Add functions to access maps From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Thomas Gleixner , Darren Hart , Davidlohr Bueso , "=?UTF-8?q?Andr=C3=A9=20Almeida?=" , James Clark , John Garry , Riccardo Mancini , Yury Norov , Andy Shevchenko , Andrew Morton , Jin Yao , Adrian Hunter , Leo Yan , Andi Kleen , Thomas Richter , Kan Liang , Madhavan Srinivasan , Shunsuke Nakamura , Song Liu , Masami Hiramatsu , Steven Rostedt , Miaoqian Lin , Stephen Brennan , Kajol Jain , Alexey Bayduraev , German Gomez , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Eric Dumazet , Dmitry Vyukov , Hao Luo Cc: eranian@google.com, Ian Rogers Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Introduce functions to access struct maps. These functions reduce the number of places reference counting is necessary. While tidying APIs do some small const-ification, in particlar to unwind_libunwind_ops. Signed-off-by: Ian Rogers --- .../scripts/python/Perf-Trace-Util/Context.c | 7 +- tools/perf/tests/code-reading.c | 2 +- tools/perf/ui/browsers/hists.c | 3 +- tools/perf/util/callchain.c | 9 +-- tools/perf/util/db-export.c | 12 ++-- tools/perf/util/dlfilter.c | 8 ++- tools/perf/util/event.c | 4 +- tools/perf/util/hist.c | 2 +- tools/perf/util/machine.c | 2 +- tools/perf/util/map.c | 14 ++-- tools/perf/util/maps.c | 69 +++++++++++-------- tools/perf/util/maps.h | 47 ++++++++++--- .../scripting-engines/trace-event-python.c | 2 +- tools/perf/util/sort.c | 2 +- tools/perf/util/symbol-elf.c | 2 +- tools/perf/util/symbol.c | 36 +++++----- tools/perf/util/thread-stack.c | 4 +- tools/perf/util/thread.c | 4 +- tools/perf/util/unwind-libunwind-local.c | 16 +++-- tools/perf/util/unwind-libunwind.c | 30 +++++--- 20 files changed, 170 insertions(+), 105 deletions(-) diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c index 895f5fc23965..b64013a87c54 100644 --- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c +++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c @@ -98,10 +98,11 @@ static PyObject *perf_sample_insn(PyObject *obj, PyObject *args) if (!c) return NULL; - if (c->sample->ip && !c->sample->insn_len && - c->al->thread->maps && c->al->thread->maps->machine) - script_fetch_insn(c->sample, c->al->thread, c->al->thread->maps->machine); + if (c->sample->ip && !c->sample->insn_len && c->al->thread->maps) { + struct machine *machine = maps__machine(c->al->thread->maps); + script_fetch_insn(c->sample, c->al->thread, machine); + } if (!c->sample->insn_len) Py_RETURN_NONE; /* N.B. This is a return statement */ diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 5610767b407f..6eafe36a8704 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -268,7 +268,7 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode, len = al.map->end - addr; /* Read the object code using perf */ - ret_len = dso__data_read_offset(al.map->dso, thread->maps->machine, + ret_len = dso__data_read_offset(al.map->dso, maps__machine(thread->maps), al.addr, buf1, len); if (ret_len != len) { pr_debug("dso__data_read_offset failed\n"); diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index b72ee6822222..572ff38ceb0f 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -3139,7 +3139,8 @@ static int evsel__hists_browse(struct evsel *evsel, int nr_events, const char *h continue; case 'k': if (browser->selection != NULL) - hists_browser__zoom_map(browser, browser->selection->maps->machine->vmlinux_map); + hists_browser__zoom_map(browser, + maps__machine(browser->selection->maps)->vmlinux_map); continue; case 'V': verbose = (verbose + 1) % 4; diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 5c27a4b2e7a7..61bb3fb2107a 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -1106,6 +1106,8 @@ int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *samp int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *node, bool hide_unresolved) { + struct machine *machine = maps__machine(node->ms.maps); + al->maps = node->ms.maps; al->map = node->ms.map; al->sym = node->ms.sym; @@ -1118,9 +1120,8 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node * if (al->map == NULL) goto out; } - - if (al->maps == machine__kernel_maps(al->maps->machine)) { - if (machine__is_host(al->maps->machine)) { + if (al->maps == machine__kernel_maps(machine)) { + if (machine__is_host(machine)) { al->cpumode = PERF_RECORD_MISC_KERNEL; al->level = 'k'; } else { @@ -1128,7 +1129,7 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node * al->level = 'g'; } } else { - if (machine__is_host(al->maps->machine)) { + if (machine__is_host(machine)) { al->cpumode = PERF_RECORD_MISC_USER; al->level = '.'; } else if (perf_guest) { diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c index e0d4f08839fb..1cfcfdd3cf52 100644 --- a/tools/perf/util/db-export.c +++ b/tools/perf/util/db-export.c @@ -181,7 +181,7 @@ static int db_ids_from_al(struct db_export *dbe, struct addr_location *al, if (al->map) { struct dso *dso = al->map->dso; - err = db_export__dso(dbe, dso, al->maps->machine); + err = db_export__dso(dbe, dso, maps__machine(al->maps)); if (err) return err; *dso_db_id = dso->db_id; @@ -354,19 +354,21 @@ int db_export__sample(struct db_export *dbe, union perf_event *event, }; struct thread *main_thread; struct comm *comm = NULL; + struct machine *machine; int err; err = db_export__evsel(dbe, evsel); if (err) return err; - err = db_export__machine(dbe, al->maps->machine); + machine = maps__machine(al->maps); + err = db_export__machine(dbe, machine); if (err) return err; - main_thread = thread__main_thread(al->maps->machine, thread); + main_thread = thread__main_thread(machine, thread); - err = db_export__threads(dbe, thread, main_thread, al->maps->machine, &comm); + err = db_export__threads(dbe, thread, main_thread, machine, &comm); if (err) goto out_put; @@ -380,7 +382,7 @@ int db_export__sample(struct db_export *dbe, union perf_event *event, goto out_put; if (dbe->cpr) { - struct call_path *cp = call_path_from_sample(dbe, al->maps->machine, + struct call_path *cp = call_path_from_sample(dbe, machine, thread, sample, evsel); if (cp) { diff --git a/tools/perf/util/dlfilter.c b/tools/perf/util/dlfilter.c index db964d5a52af..d59462af15f1 100644 --- a/tools/perf/util/dlfilter.c +++ b/tools/perf/util/dlfilter.c @@ -197,8 +197,12 @@ static const __u8 *dlfilter__insn(void *ctx, __u32 *len) if (!al->thread && machine__resolve(d->machine, al, d->sample) < 0) return NULL; - if (al->thread->maps && al->thread->maps->machine) - script_fetch_insn(d->sample, al->thread, al->thread->maps->machine); + if (al->thread->maps) { + struct machine *machine = maps__machine(al->thread->maps); + + if (machine) + script_fetch_insn(d->sample, al->thread, machine); + } } if (!d->sample->insn_len) diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 6439c888ae38..40a3b1a35613 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -571,7 +571,7 @@ struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, struct addr_location *al) { struct maps *maps = thread->maps; - struct machine *machine = maps->machine; + struct machine *machine = maps__machine(maps); bool load_map = false; al->maps = maps; @@ -636,7 +636,7 @@ struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr, struct addr_location *al) { struct map *map = thread__find_map(thread, cpumode, addr, al); - struct machine *machine = thread->maps->machine; + struct machine *machine = maps__machine(thread->maps); u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr); if (map || addr_cpumode == cpumode) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 0a8033b09e28..78f9fbb925a7 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -237,7 +237,7 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h) if (h->cgroup) { const char *cgrp_name = "unknown"; - struct cgroup *cgrp = cgroup__find(h->ms.maps->machine->env, + struct cgroup *cgrp = cgroup__find(maps__machine(h->ms.maps)->env, h->cgroup); if (cgrp != NULL) cgrp_name = cgrp->name; diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index fa25174cabf7..88279008e761 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -2739,7 +2739,7 @@ static int find_prev_cpumode(struct ip_callchain *chain, struct thread *thread, static u64 get_leaf_frame_caller(struct perf_sample *sample, struct thread *thread, int usr_idx) { - if (machine__normalized_is(thread->maps->machine, "arm64")) + if (machine__normalized_is(maps__machine(thread->maps), "arm64")) return get_leaf_frame_caller_aarch64(sample, thread, usr_idx); else return 0; diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 166c84c829f6..57e926ce115f 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -220,7 +220,7 @@ bool __map__is_kernel(const struct map *map) { if (!map->dso->kernel) return false; - return machine__kernel_map(map__kmaps((struct map *)map)->machine) == map; + return machine__kernel_map(maps__machine(map__kmaps((struct map *)map))) == map; } bool __map__is_extra_kernel_map(const struct map *map) @@ -461,11 +461,15 @@ u64 map__rip_2objdump(struct map *map, u64 rip) * kcore may not either. However the trampoline object code is on the * main kernel map, so just use that instead. */ - if (kmap && is_entry_trampoline(kmap->name) && kmap->kmaps && kmap->kmaps->machine) { - struct map *kernel_map = machine__kernel_map(kmap->kmaps->machine); + if (kmap && is_entry_trampoline(kmap->name) && kmap->kmaps) { + struct machine *machine = maps__machine(kmap->kmaps); - if (kernel_map) - map = kernel_map; + if (machine) { + struct map *kernel_map = machine__kernel_map(machine); + + if (kernel_map) + map = kernel_map; + } } if (!map->dso->adjust_symbols) diff --git a/tools/perf/util/maps.c b/tools/perf/util/maps.c index beb09b9a122c..9fc3e7186b8e 100644 --- a/tools/perf/util/maps.c +++ b/tools/perf/util/maps.c @@ -13,7 +13,7 @@ static void maps__init(struct maps *maps, struct machine *machine) { maps->entries = RB_ROOT; - init_rwsem(&maps->lock); + init_rwsem(maps__lock(maps)); maps->machine = machine; maps->last_search_by_name = NULL; maps->nr_maps = 0; @@ -32,7 +32,7 @@ static void __maps__free_maps_by_name(struct maps *maps) static int __maps__insert(struct maps *maps, struct map *map) { - struct rb_node **p = &maps->entries.rb_node; + struct rb_node **p = &maps__entries(maps)->rb_node; struct rb_node *parent = NULL; const u64 ip = map->start; struct map_rb_node *m, *new_rb_node; @@ -54,7 +54,7 @@ static int __maps__insert(struct maps *maps, struct map *map) } rb_link_node(&new_rb_node->rb_node, parent, p); - rb_insert_color(&new_rb_node->rb_node, &maps->entries); + rb_insert_color(&new_rb_node->rb_node, maps__entries(maps)); map__get(map); return 0; } @@ -63,7 +63,7 @@ int maps__insert(struct maps *maps, struct map *map) { int err; - down_write(&maps->lock); + down_write(maps__lock(maps)); err = __maps__insert(maps, map); if (err) goto out; @@ -84,10 +84,11 @@ int maps__insert(struct maps *maps, struct map *map) * If we already performed some search by name, then we need to add the just * inserted map and resort. */ - if (maps->maps_by_name) { - if (maps->nr_maps > maps->nr_maps_allocated) { - int nr_allocate = maps->nr_maps * 2; - struct map **maps_by_name = realloc(maps->maps_by_name, nr_allocate * sizeof(map)); + if (maps__maps_by_name(maps)) { + if (maps__nr_maps(maps) > maps->nr_maps_allocated) { + int nr_allocate = maps__nr_maps(maps) * 2; + struct map **maps_by_name = realloc(maps__maps_by_name(maps), + nr_allocate * sizeof(map)); if (maps_by_name == NULL) { __maps__free_maps_by_name(maps); @@ -98,17 +99,17 @@ int maps__insert(struct maps *maps, struct map *map) maps->maps_by_name = maps_by_name; maps->nr_maps_allocated = nr_allocate; } - maps->maps_by_name[maps->nr_maps - 1] = map; + maps__maps_by_name(maps)[maps__nr_maps(maps) - 1] = map; __maps__sort_by_name(maps); } out: - up_write(&maps->lock); + up_write(maps__lock(maps)); return err; } static void __maps__remove(struct maps *maps, struct map_rb_node *rb_node) { - rb_erase_init(&rb_node->rb_node, &maps->entries); + rb_erase_init(&rb_node->rb_node, maps__entries(maps)); map__put(rb_node->map); free(rb_node); } @@ -117,7 +118,7 @@ void maps__remove(struct maps *maps, struct map *map) { struct map_rb_node *rb_node; - down_write(&maps->lock); + down_write(maps__lock(maps)); if (maps->last_search_by_name == map) maps->last_search_by_name = NULL; @@ -125,9 +126,9 @@ void maps__remove(struct maps *maps, struct map *map) assert(rb_node->map == map); __maps__remove(maps, rb_node); --maps->nr_maps; - if (maps->maps_by_name) + if (maps__maps_by_name(maps)) __maps__free_maps_by_name(maps); - up_write(&maps->lock); + up_write(maps__lock(maps)); } static void __maps__purge(struct maps *maps) @@ -135,7 +136,7 @@ static void __maps__purge(struct maps *maps) struct map_rb_node *pos, *next; maps__for_each_entry_safe(maps, pos, next) { - rb_erase_init(&pos->rb_node, &maps->entries); + rb_erase_init(&pos->rb_node, maps__entries(maps)); map__put(pos->map); free(pos); } @@ -143,9 +144,9 @@ static void __maps__purge(struct maps *maps) static void maps__exit(struct maps *maps) { - down_write(&maps->lock); + down_write(maps__lock(maps)); __maps__purge(maps); - up_write(&maps->lock); + up_write(maps__lock(maps)); } bool maps__empty(struct maps *maps) @@ -170,6 +171,14 @@ void maps__delete(struct maps *maps) free(maps); } +struct maps *maps__get(struct maps *maps) +{ + if (maps) + refcount_inc(&maps->refcnt); + + return maps; +} + void maps__put(struct maps *maps) { if (maps && refcount_dec_and_test(&maps->refcnt)) @@ -195,7 +204,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, st struct symbol *sym; struct map_rb_node *pos; - down_read(&maps->lock); + down_read(maps__lock(maps)); maps__for_each_entry(maps, pos) { sym = map__find_symbol_by_name(pos->map, name); @@ -213,7 +222,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, st sym = NULL; out: - up_read(&maps->lock); + up_read(maps__lock(maps)); return sym; } @@ -238,7 +247,7 @@ size_t maps__fprintf(struct maps *maps, FILE *fp) size_t printed = 0; struct map_rb_node *pos; - down_read(&maps->lock); + down_read(maps__lock(maps)); maps__for_each_entry(maps, pos) { printed += fprintf(fp, "Map:"); @@ -249,7 +258,7 @@ size_t maps__fprintf(struct maps *maps, FILE *fp) } } - up_read(&maps->lock); + up_read(maps__lock(maps)); return printed; } @@ -260,9 +269,9 @@ int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp) struct rb_node *next, *first; int err = 0; - down_write(&maps->lock); + down_write(maps__lock(maps)); - root = &maps->entries; + root = maps__entries(maps); /* * Find first map where end > map->start. @@ -358,7 +367,7 @@ int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp) err = 0; out: - up_write(&maps->lock); + up_write(maps__lock(maps)); return err; } @@ -371,7 +380,7 @@ int maps__clone(struct thread *thread, struct maps *parent) int err; struct map_rb_node *rb_node; - down_read(&parent->lock); + down_read(maps__lock(parent)); maps__for_each_entry(parent, rb_node) { struct map *new = map__clone(rb_node->map); @@ -394,7 +403,7 @@ int maps__clone(struct thread *thread, struct maps *parent) err = 0; out_unlock: - up_read(&parent->lock); + up_read(maps__lock(parent)); return err; } @@ -414,9 +423,9 @@ struct map *maps__find(struct maps *maps, u64 ip) struct rb_node *p; struct map_rb_node *m; - down_read(&maps->lock); + down_read(maps__lock(maps)); - p = maps->entries.rb_node; + p = maps__entries(maps)->rb_node; while (p != NULL) { m = rb_entry(p, struct map_rb_node, rb_node); if (ip < m->map->start) @@ -429,14 +438,14 @@ struct map *maps__find(struct maps *maps, u64 ip) m = NULL; out: - up_read(&maps->lock); + up_read(maps__lock(maps)); return m ? m->map : NULL; } struct map_rb_node *maps__first(struct maps *maps) { - struct rb_node *first = rb_first(&maps->entries); + struct rb_node *first = rb_first(maps__entries(maps)); if (first) return rb_entry(first, struct map_rb_node, rb_node); diff --git a/tools/perf/util/maps.h b/tools/perf/util/maps.h index 512746ec0f9a..bde3390c7096 100644 --- a/tools/perf/util/maps.h +++ b/tools/perf/util/maps.h @@ -43,7 +43,7 @@ struct maps { unsigned int nr_maps_allocated; #ifdef HAVE_LIBUNWIND_SUPPORT void *addr_space; - struct unwind_libunwind_ops *unwind_libunwind_ops; + const struct unwind_libunwind_ops *unwind_libunwind_ops; #endif }; @@ -58,20 +58,51 @@ struct kmap { struct maps *maps__new(struct machine *machine); void maps__delete(struct maps *maps); bool maps__empty(struct maps *maps); +int maps__clone(struct thread *thread, struct maps *parent); + +struct maps *maps__get(struct maps *maps); +void maps__put(struct maps *maps); -static inline struct maps *maps__get(struct maps *maps) +static inline struct rb_root *maps__entries(struct maps *maps) { - if (maps) - refcount_inc(&maps->refcnt); - return maps; + return &maps->entries; } -void maps__put(struct maps *maps); -int maps__clone(struct thread *thread, struct maps *parent); +static inline struct machine *maps__machine(struct maps *maps) +{ + return maps->machine; +} + +static inline struct rw_semaphore *maps__lock(struct maps *maps) +{ + return &maps->lock; +} + +static inline struct map **maps__maps_by_name(struct maps *maps) +{ + return maps->maps_by_name; +} + +static inline unsigned int maps__nr_maps(const struct maps *maps) +{ + return maps->nr_maps; +} + +#ifdef HAVE_LIBUNWIND_SUPPORT +static inline void *maps__addr_space(struct maps *maps) +{ + return maps->addr_space; +} + +static inline const struct unwind_libunwind_ops *maps__unwind_libunwind_ops(const struct maps *maps) +{ + return maps->unwind_libunwind_ops; +} +#endif + size_t maps__fprintf(struct maps *maps, FILE *fp); int maps__insert(struct maps *maps, struct map *map); - void maps__remove(struct maps *maps, struct map *map); struct symbol *maps__find_symbol(struct maps *maps, u64 addr, struct map **mapp); diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index e752e1f4a5f0..0290dc3a6258 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -1220,7 +1220,7 @@ static void python_export_sample_table(struct db_export *dbe, tuple_set_d64(t, 0, es->db_id); tuple_set_d64(t, 1, es->evsel->db_id); - tuple_set_d64(t, 2, es->al->maps->machine->db_id); + tuple_set_d64(t, 2, maps__machine(es->al->maps)->db_id); tuple_set_d64(t, 3, es->al->thread->db_id); tuple_set_d64(t, 4, es->comm_db_id); tuple_set_d64(t, 5, es->dso_db_id); diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index cfba8c337783..25686d67ee6f 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -661,7 +661,7 @@ static int hist_entry__cgroup_snprintf(struct hist_entry *he, const char *cgrp_name = "N/A"; if (he->cgroup) { - struct cgroup *cgrp = cgroup__find(he->ms.maps->machine->env, + struct cgroup *cgrp = cgroup__find(maps__machine(he->ms.maps)->env, he->cgroup); if (cgrp != NULL) cgrp_name = cgrp->name; diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 4607c9438866..3ca9a0968345 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -1067,7 +1067,7 @@ static int dso__process_kernel_symbol(struct dso *dso, struct map *map, * we still are sure to have a reference to this DSO via * *curr_map->dso. */ - dsos__add(&kmaps->machine->dsos, curr_dso); + dsos__add(&maps__machine(kmaps)->dsos, curr_dso); /* kmaps already got it */ map__put(curr_map); dso__set_loaded(curr_dso); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index e8045b1c8700..9b51e669a722 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -249,7 +249,7 @@ void maps__fixup_end(struct maps *maps) { struct map_rb_node *prev = NULL, *curr; - down_write(&maps->lock); + down_write(maps__lock(maps)); maps__for_each_entry(maps, curr) { if (prev != NULL && !prev->map->end) @@ -265,7 +265,7 @@ void maps__fixup_end(struct maps *maps) if (curr && !curr->map->end) curr->map->end = ~0ULL; - up_write(&maps->lock); + up_write(maps__lock(maps)); } struct symbol *symbol__new(u64 start, u64 len, u8 binding, u8 type, const char *name) @@ -813,7 +813,7 @@ static int maps__split_kallsyms(struct maps *kmaps, struct dso *dso, u64 delta, if (!kmaps) return -1; - machine = kmaps->machine; + machine = maps__machine(kmaps); x86_64 = machine__is(machine, "x86_64"); @@ -937,7 +937,7 @@ static int maps__split_kallsyms(struct maps *kmaps, struct dso *dso, u64 delta, if (curr_map != initial_map && dso->kernel == DSO_SPACE__KERNEL_GUEST && - machine__is_default_guest(kmaps->machine)) { + machine__is_default_guest(maps__machine(kmaps))) { dso__set_loaded(curr_map->dso); } @@ -1336,7 +1336,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map, if (!kmaps) return -EINVAL; - machine = kmaps->machine; + machine = maps__machine(kmaps); /* This function requires that the map is the kernel map */ if (!__map__is_kernel(map)) @@ -1851,7 +1851,7 @@ int dso__load(struct dso *dso, struct map *map) else if (dso->kernel == DSO_SPACE__KERNEL_GUEST) ret = dso__load_guest_kernel_sym(dso, map); - machine = map__kmaps(map)->machine; + machine = maps__machine(map__kmaps(map)); if (machine__is(machine, "x86_64")) machine__map_x86_64_entry_trampolines(machine, dso); goto out; @@ -2006,21 +2006,21 @@ static int map__strcmp_name(const void *name, const void *b) void __maps__sort_by_name(struct maps *maps) { - qsort(maps->maps_by_name, maps->nr_maps, sizeof(struct map *), map__strcmp); + qsort(maps__maps_by_name(maps), maps__nr_maps(maps), sizeof(struct map *), map__strcmp); } static int map__groups__sort_by_name_from_rbtree(struct maps *maps) { struct map_rb_node *rb_node; - struct map **maps_by_name = realloc(maps->maps_by_name, - maps->nr_maps * sizeof(struct map *)); + struct map **maps_by_name = realloc(maps__maps_by_name(maps), + maps__nr_maps(maps) * sizeof(struct map *)); int i = 0; if (maps_by_name == NULL) return -1; maps->maps_by_name = maps_by_name; - maps->nr_maps_allocated = maps->nr_maps; + maps->nr_maps_allocated = maps__nr_maps(maps); maps__for_each_entry(maps, rb_node) maps_by_name[i++] = rb_node->map; @@ -2033,11 +2033,12 @@ static struct map *__maps__find_by_name(struct maps *maps, const char *name) { struct map **mapp; - if (maps->maps_by_name == NULL && + if (maps__maps_by_name(maps) == NULL && map__groups__sort_by_name_from_rbtree(maps)) return NULL; - mapp = bsearch(name, maps->maps_by_name, maps->nr_maps, sizeof(*mapp), map__strcmp_name); + mapp = bsearch(name, maps__maps_by_name(maps), maps__nr_maps(maps), + sizeof(*mapp), map__strcmp_name); if (mapp) return *mapp; return NULL; @@ -2048,9 +2049,10 @@ struct map *maps__find_by_name(struct maps *maps, const char *name) struct map_rb_node *rb_node; struct map *map; - down_read(&maps->lock); + down_read(maps__lock(maps)); - if (maps->last_search_by_name && strcmp(maps->last_search_by_name->dso->short_name, name) == 0) { + if (maps->last_search_by_name && + strcmp(maps->last_search_by_name->dso->short_name, name) == 0) { map = maps->last_search_by_name; goto out_unlock; } @@ -2060,7 +2062,7 @@ struct map *maps__find_by_name(struct maps *maps, const char *name) * made. */ map = __maps__find_by_name(maps, name); - if (map || maps->maps_by_name != NULL) + if (map || maps__maps_by_name(maps) != NULL) goto out_unlock; /* Fallback to traversing the rbtree... */ @@ -2074,7 +2076,7 @@ struct map *maps__find_by_name(struct maps *maps, const char *name) map = NULL; out_unlock: - up_read(&maps->lock); + up_read(maps__lock(maps)); return map; } @@ -2326,7 +2328,7 @@ static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map) { int err; const char *kallsyms_filename = NULL; - struct machine *machine = map__kmaps(map)->machine; + struct machine *machine = maps__machine(map__kmaps(map)); char path[PATH_MAX]; if (machine__is_default_guest(machine)) { diff --git a/tools/perf/util/thread-stack.c b/tools/perf/util/thread-stack.c index 1b992bbba4e8..4b85c1728012 100644 --- a/tools/perf/util/thread-stack.c +++ b/tools/perf/util/thread-stack.c @@ -155,8 +155,8 @@ static int thread_stack__init(struct thread_stack *ts, struct thread *thread, ts->br_stack_sz = br_stack_sz; } - if (thread->maps && thread->maps->machine) { - struct machine *machine = thread->maps->machine; + if (thread->maps && maps__machine(thread->maps)) { + struct machine *machine = maps__machine(thread->maps); const char *arch = perf_env__arch(machine->env); ts->kernel_start = machine__kernel_start(machine); diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 4baf4db8af65..c2256777b813 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -348,7 +348,7 @@ static int __thread__prepare_access(struct thread *thread) struct maps *maps = thread->maps; struct map_rb_node *rb_node; - down_read(&maps->lock); + down_read(maps__lock(maps)); maps__for_each_entry(maps, rb_node) { err = unwind__prepare_access(thread->maps, rb_node->map, &initialized); @@ -356,7 +356,7 @@ static int __thread__prepare_access(struct thread *thread) break; } - up_read(&maps->lock); + up_read(maps__lock(maps)); return err; } diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c index 71a353349181..7e6c59811292 100644 --- a/tools/perf/util/unwind-libunwind-local.c +++ b/tools/perf/util/unwind-libunwind-local.c @@ -618,24 +618,26 @@ static unw_accessors_t accessors = { static int _unwind__prepare_access(struct maps *maps) { - maps->addr_space = unw_create_addr_space(&accessors, 0); - if (!maps->addr_space) { + void *addr_space = unw_create_addr_space(&accessors, 0); + + maps->addr_space = addr_space; + if (!addr_space) { pr_err("unwind: Can't create unwind address space.\n"); return -ENOMEM; } - unw_set_caching_policy(maps->addr_space, UNW_CACHE_GLOBAL); + unw_set_caching_policy(addr_space, UNW_CACHE_GLOBAL); return 0; } static void _unwind__flush_access(struct maps *maps) { - unw_flush_cache(maps->addr_space, 0, 0); + unw_flush_cache(maps__addr_space(maps), 0, 0); } static void _unwind__finish_access(struct maps *maps) { - unw_destroy_addr_space(maps->addr_space); + unw_destroy_addr_space(maps__addr_space(maps)); } static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb, @@ -660,7 +662,7 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb, */ if (max_stack - 1 > 0) { WARN_ONCE(!ui->thread, "WARNING: ui->thread is NULL"); - addr_space = ui->thread->maps->addr_space; + addr_space = maps__addr_space(ui->thread->maps); if (addr_space == NULL) return -1; @@ -709,7 +711,7 @@ static int _unwind__get_entries(unwind_entry_cb_t cb, void *arg, struct unwind_info ui = { .sample = data, .thread = thread, - .machine = thread->maps->machine, + .machine = maps__machine(thread->maps), }; if (!data->user_regs.regs) diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c index e89a5479b361..7b797ffadd19 100644 --- a/tools/perf/util/unwind-libunwind.c +++ b/tools/perf/util/unwind-libunwind.c @@ -22,12 +22,13 @@ int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized const char *arch; enum dso_type dso_type; struct unwind_libunwind_ops *ops = local_unwind_libunwind_ops; + struct machine *machine; int err; if (!dwarf_callchain_users) return 0; - if (maps->addr_space) { + if (maps__addr_space(maps)) { pr_debug("unwind: thread map already set, dso=%s\n", map->dso->name); if (initialized) @@ -35,15 +36,16 @@ int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized return 0; } + machine = maps__machine(maps); /* env->arch is NULL for live-mode (i.e. perf top) */ - if (!maps->machine->env || !maps->machine->env->arch) + if (!machine->env || !machine->env->arch) goto out_register; - dso_type = dso__type(map->dso, maps->machine); + dso_type = dso__type(map->dso, machine); if (dso_type == DSO__TYPE_UNKNOWN) return 0; - arch = perf_env__arch(maps->machine->env); + arch = perf_env__arch(machine->env); if (!strcmp(arch, "x86")) { if (dso_type != DSO__TYPE_64BIT) @@ -60,7 +62,7 @@ int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized out_register: unwind__register_ops(maps, ops); - err = maps->unwind_libunwind_ops->prepare_access(maps); + err = maps__unwind_libunwind_ops(maps)->prepare_access(maps); if (initialized) *initialized = err ? false : true; return err; @@ -68,21 +70,27 @@ int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized void unwind__flush_access(struct maps *maps) { - if (maps->unwind_libunwind_ops) - maps->unwind_libunwind_ops->flush_access(maps); + const struct unwind_libunwind_ops *ops = maps__unwind_libunwind_ops(maps); + + if (ops) + ops->flush_access(maps); } void unwind__finish_access(struct maps *maps) { - if (maps->unwind_libunwind_ops) - maps->unwind_libunwind_ops->finish_access(maps); + const struct unwind_libunwind_ops *ops = maps__unwind_libunwind_ops(maps); + + if (ops) + ops->finish_access(maps); } int unwind__get_entries(unwind_entry_cb_t cb, void *arg, struct thread *thread, struct perf_sample *data, int max_stack) { - if (thread->maps->unwind_libunwind_ops) - return thread->maps->unwind_libunwind_ops->get_entries(cb, arg, thread, data, max_stack); + const struct unwind_libunwind_ops *ops = maps__unwind_libunwind_ops(thread->maps); + + if (ops) + return ops->get_entries(cb, arg, thread, data, max_stack); return 0; } -- 2.35.1.265.g69c8d7142f-goog