From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752109Ab2GYRm2 (ORCPT ); Wed, 25 Jul 2012 13:42:28 -0400 Received: from casper.infradead.org ([85.118.1.10]:45524 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751868Ab2GYRmZ (ORCPT ); Wed, 25 Jul 2012 13:42:25 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Jiri Olsa , Arun Sharma , Benjamin Redelings , Corey Ashford , Cyrill Gorcunov , "Frank Ch. Eigler" , Frederic Weisbecker , Masami Hiramatsu , Paul Mackerras , Peter Zijlstra , Robert Richter , Stephane Eranian , Tom Zanussi , Ulrich Drepper , Arnaldo Carvalho de Melo Subject: [PATCH 10/19] perf symbols: Factor DSO symtab types to generic binary types Date: Wed, 25 Jul 2012 14:41:25 -0300 Message-Id: <1343238094-12481-11-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1343238094-12481-1-git-send-email-acme@infradead.org> References: <1343238094-12481-1-git-send-email-acme@infradead.org> Content-Type: text/plain; charset="UTF-8" X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiri Olsa Adding interface to access DSOs so it could be used from another place. New DSO binary type is added - making current SYMTAB__* types more general: DSO_BINARY_TYPE__* = SYMTAB__* Following function is added to return path based on the specified binary type: dso__binary_type_file Signed-off-by: Jiri Olsa Cc: Arun Sharma Cc: Benjamin Redelings Cc: Corey Ashford Cc: Cyrill Gorcunov Cc: Frank Ch. Eigler Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Masami Hiramatsu Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Robert Richter Cc: Stephane Eranian Cc: Tom Zanussi Cc: Ulrich Drepper Link: http://lkml.kernel.org/r/1342959280-5361-10-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-top.c | 2 +- tools/perf/util/annotate.c | 2 +- tools/perf/util/symbol.c | 209 ++++++++++++++++++++++++++------------------ tools/perf/util/symbol.h | 34 ++++---- 4 files changed, 145 insertions(+), 102 deletions(-) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index e3cab5f..35e86c6 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -125,7 +125,7 @@ static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) /* * We can't annotate with just /proc/kallsyms */ - if (map->dso->symtab_type == SYMTAB__KALLSYMS) { + if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) { pr_err("Can't annotate %s: No vmlinux file was found in the " "path\n", sym->name); sleep(1); diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 8069dfb..7d3641f 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -777,7 +777,7 @@ fallback: free_filename = false; } - if (dso->symtab_type == SYMTAB__KALLSYMS) { + if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) { char bf[BUILD_ID_SIZE * 2 + 16] = " with build id "; char *build_id_msg = NULL; diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 66c132e..60677a6 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -48,6 +48,23 @@ struct symbol_conf symbol_conf = { .symfs = "", }; +static enum dso_binary_type binary_type_symtab[] = { + DSO_BINARY_TYPE__KALLSYMS, + DSO_BINARY_TYPE__GUEST_KALLSYMS, + DSO_BINARY_TYPE__JAVA_JIT, + DSO_BINARY_TYPE__DEBUGLINK, + DSO_BINARY_TYPE__BUILD_ID_CACHE, + DSO_BINARY_TYPE__FEDORA_DEBUGINFO, + DSO_BINARY_TYPE__UBUNTU_DEBUGINFO, + DSO_BINARY_TYPE__BUILDID_DEBUGINFO, + DSO_BINARY_TYPE__SYSTEM_PATH_DSO, + DSO_BINARY_TYPE__GUEST_KMODULE, + DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE, + DSO_BINARY_TYPE__NOT_FOUND, +}; + +#define DSO_BINARY_TYPE__SYMTAB_CNT sizeof(binary_type_symtab) + int dso__name_len(const struct dso *dso) { if (!dso) @@ -318,7 +335,7 @@ struct dso *dso__new(const char *name) dso__set_short_name(dso, dso->name); for (i = 0; i < MAP__NR_TYPES; ++i) dso->symbols[i] = dso->symbol_names[i] = RB_ROOT; - dso->symtab_type = SYMTAB__NOT_FOUND; + dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND; dso->loaded = 0; dso->sorted_by_name = 0; dso->has_build_id = 0; @@ -806,9 +823,9 @@ int dso__load_kallsyms(struct dso *dso, const char *filename, symbols__fixup_end(&dso->symbols[map->type]); if (dso->kernel == DSO_TYPE_GUEST_KERNEL) - dso->symtab_type = SYMTAB__GUEST_KALLSYMS; + dso->symtab_type = DSO_BINARY_TYPE__GUEST_KALLSYMS; else - dso->symtab_type = SYMTAB__KALLSYMS; + dso->symtab_type = DSO_BINARY_TYPE__KALLSYMS; return dso__split_kallsyms(dso, map, filter); } @@ -1660,32 +1677,110 @@ out: char dso__symtab_origin(const struct dso *dso) { static const char origin[] = { - [SYMTAB__KALLSYMS] = 'k', - [SYMTAB__JAVA_JIT] = 'j', - [SYMTAB__DEBUGLINK] = 'l', - [SYMTAB__BUILD_ID_CACHE] = 'B', - [SYMTAB__FEDORA_DEBUGINFO] = 'f', - [SYMTAB__UBUNTU_DEBUGINFO] = 'u', - [SYMTAB__BUILDID_DEBUGINFO] = 'b', - [SYMTAB__SYSTEM_PATH_DSO] = 'd', - [SYMTAB__SYSTEM_PATH_KMODULE] = 'K', - [SYMTAB__GUEST_KALLSYMS] = 'g', - [SYMTAB__GUEST_KMODULE] = 'G', + [DSO_BINARY_TYPE__KALLSYMS] = 'k', + [DSO_BINARY_TYPE__JAVA_JIT] = 'j', + [DSO_BINARY_TYPE__DEBUGLINK] = 'l', + [DSO_BINARY_TYPE__BUILD_ID_CACHE] = 'B', + [DSO_BINARY_TYPE__FEDORA_DEBUGINFO] = 'f', + [DSO_BINARY_TYPE__UBUNTU_DEBUGINFO] = 'u', + [DSO_BINARY_TYPE__BUILDID_DEBUGINFO] = 'b', + [DSO_BINARY_TYPE__SYSTEM_PATH_DSO] = 'd', + [DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE] = 'K', + [DSO_BINARY_TYPE__GUEST_KALLSYMS] = 'g', + [DSO_BINARY_TYPE__GUEST_KMODULE] = 'G', }; - if (dso == NULL || dso->symtab_type == SYMTAB__NOT_FOUND) + if (dso == NULL || dso->symtab_type == DSO_BINARY_TYPE__NOT_FOUND) return '!'; return origin[dso->symtab_type]; } +int dso__binary_type_file(struct dso *dso, enum dso_binary_type type, + char *root_dir, char *file, size_t size) +{ + char build_id_hex[BUILD_ID_SIZE * 2 + 1]; + int ret = 0; + + switch (type) { + case DSO_BINARY_TYPE__DEBUGLINK: { + char *debuglink; + + strncpy(file, dso->long_name, size); + debuglink = file + dso->long_name_len; + while (debuglink != file && *debuglink != '/') + debuglink--; + if (*debuglink == '/') + debuglink++; + filename__read_debuglink(dso->long_name, debuglink, + size - (debuglink - file)); + } + break; + case DSO_BINARY_TYPE__BUILD_ID_CACHE: + /* skip the locally configured cache if a symfs is given */ + if (symbol_conf.symfs[0] || + (dso__build_id_filename(dso, file, size) == NULL)) + ret = -1; + break; + + case DSO_BINARY_TYPE__FEDORA_DEBUGINFO: + snprintf(file, size, "%s/usr/lib/debug%s.debug", + symbol_conf.symfs, dso->long_name); + break; + + case DSO_BINARY_TYPE__UBUNTU_DEBUGINFO: + snprintf(file, size, "%s/usr/lib/debug%s", + symbol_conf.symfs, dso->long_name); + break; + + case DSO_BINARY_TYPE__BUILDID_DEBUGINFO: + if (!dso->has_build_id) { + ret = -1; + break; + } + + build_id__sprintf(dso->build_id, + sizeof(dso->build_id), + build_id_hex); + snprintf(file, size, + "%s/usr/lib/debug/.build-id/%.2s/%s.debug", + symbol_conf.symfs, build_id_hex, build_id_hex + 2); + break; + + case DSO_BINARY_TYPE__SYSTEM_PATH_DSO: + snprintf(file, size, "%s%s", + symbol_conf.symfs, dso->long_name); + break; + + case DSO_BINARY_TYPE__GUEST_KMODULE: + snprintf(file, size, "%s%s%s", symbol_conf.symfs, + root_dir, dso->long_name); + break; + + case DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE: + snprintf(file, size, "%s%s", symbol_conf.symfs, + dso->long_name); + break; + + default: + case DSO_BINARY_TYPE__KALLSYMS: + case DSO_BINARY_TYPE__GUEST_KALLSYMS: + case DSO_BINARY_TYPE__JAVA_JIT: + case DSO_BINARY_TYPE__NOT_FOUND: + ret = -1; + break; + } + + return ret; +} + int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) { - int size = PATH_MAX; char *name; int ret = -1; int fd; + u_int i; struct machine *machine; - const char *root_dir; + char *root_dir = (char *) ""; int want_symtab; dso__set_loaded(dso, map->type); @@ -1700,7 +1795,7 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) else machine = NULL; - name = malloc(size); + name = malloc(PATH_MAX); if (!name) return -1; @@ -1719,81 +1814,27 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) } ret = dso__load_perf_map(dso, map, filter); - dso->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT : - SYMTAB__NOT_FOUND; + dso->symtab_type = ret > 0 ? DSO_BINARY_TYPE__JAVA_JIT : + DSO_BINARY_TYPE__NOT_FOUND; return ret; } + if (machine) + root_dir = machine->root_dir; + /* Iterate over candidate debug images. * On the first pass, only load images if they have a full symtab. * Failing that, do a second pass where we accept .dynsym also */ want_symtab = 1; restart: - for (dso->symtab_type = SYMTAB__DEBUGLINK; - dso->symtab_type != SYMTAB__NOT_FOUND; - dso->symtab_type++) { - switch (dso->symtab_type) { - case SYMTAB__DEBUGLINK: { - char *debuglink; - strncpy(name, dso->long_name, size); - debuglink = name + dso->long_name_len; - while (debuglink != name && *debuglink != '/') - debuglink--; - if (*debuglink == '/') - debuglink++; - filename__read_debuglink(dso->long_name, debuglink, - size - (debuglink - name)); - } - break; - case SYMTAB__BUILD_ID_CACHE: - /* skip the locally configured cache if a symfs is given */ - if (symbol_conf.symfs[0] || - (dso__build_id_filename(dso, name, size) == NULL)) { - continue; - } - break; - case SYMTAB__FEDORA_DEBUGINFO: - snprintf(name, size, "%s/usr/lib/debug%s.debug", - symbol_conf.symfs, dso->long_name); - break; - case SYMTAB__UBUNTU_DEBUGINFO: - snprintf(name, size, "%s/usr/lib/debug%s", - symbol_conf.symfs, dso->long_name); - break; - case SYMTAB__BUILDID_DEBUGINFO: { - char build_id_hex[BUILD_ID_SIZE * 2 + 1]; - - if (!dso->has_build_id) - continue; + for (i = 0; i < DSO_BINARY_TYPE__SYMTAB_CNT; i++) { - build_id__sprintf(dso->build_id, - sizeof(dso->build_id), - build_id_hex); - snprintf(name, size, - "%s/usr/lib/debug/.build-id/%.2s/%s.debug", - symbol_conf.symfs, build_id_hex, build_id_hex + 2); - } - break; - case SYMTAB__SYSTEM_PATH_DSO: - snprintf(name, size, "%s%s", - symbol_conf.symfs, dso->long_name); - break; - case SYMTAB__GUEST_KMODULE: - if (map->groups && machine) - root_dir = machine->root_dir; - else - root_dir = ""; - snprintf(name, size, "%s%s%s", symbol_conf.symfs, - root_dir, dso->long_name); - break; + dso->symtab_type = binary_type_symtab[i]; - case SYMTAB__SYSTEM_PATH_KMODULE: - snprintf(name, size, "%s%s", symbol_conf.symfs, - dso->long_name); - break; - default:; - } + if (dso__binary_type_file(dso, dso->symtab_type, + root_dir, name, PATH_MAX)) + continue; /* Name is now the name of the next image to try */ fd = open(name, O_RDONLY); @@ -2010,9 +2051,9 @@ struct map *machine__new_module(struct machine *machine, u64 start, return NULL; if (machine__is_host(machine)) - dso->symtab_type = SYMTAB__SYSTEM_PATH_KMODULE; + dso->symtab_type = DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE; else - dso->symtab_type = SYMTAB__GUEST_KMODULE; + dso->symtab_type = DSO_BINARY_TYPE__GUEST_KMODULE; map_groups__insert(&machine->kmaps, map); return map; } diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index a884b99..dc474f0 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -155,6 +155,21 @@ struct addr_location { s32 cpu; }; +enum dso_binary_type { + DSO_BINARY_TYPE__KALLSYMS = 0, + DSO_BINARY_TYPE__GUEST_KALLSYMS, + DSO_BINARY_TYPE__JAVA_JIT, + DSO_BINARY_TYPE__DEBUGLINK, + DSO_BINARY_TYPE__BUILD_ID_CACHE, + DSO_BINARY_TYPE__FEDORA_DEBUGINFO, + DSO_BINARY_TYPE__UBUNTU_DEBUGINFO, + DSO_BINARY_TYPE__BUILDID_DEBUGINFO, + DSO_BINARY_TYPE__SYSTEM_PATH_DSO, + DSO_BINARY_TYPE__GUEST_KMODULE, + DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE, + DSO_BINARY_TYPE__NOT_FOUND, +}; + enum dso_kernel_type { DSO_TYPE_USER = 0, DSO_TYPE_KERNEL, @@ -173,13 +188,13 @@ struct dso { struct rb_root symbol_names[MAP__NR_TYPES]; enum dso_kernel_type kernel; enum dso_swap_type needs_swap; + enum dso_binary_type symtab_type; u8 adjust_symbols:1; u8 has_build_id:1; u8 hit:1; u8 annotate_warned:1; u8 sname_alloc:1; u8 lname_alloc:1; - unsigned char symtab_type; u8 sorted_by_name; u8 loaded; u8 build_id[BUILD_ID_SIZE]; @@ -253,21 +268,6 @@ size_t dso__fprintf_symbols_by_name(struct dso *dso, enum map_type type, FILE *fp); size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); -enum symtab_type { - SYMTAB__KALLSYMS = 0, - SYMTAB__GUEST_KALLSYMS, - SYMTAB__JAVA_JIT, - SYMTAB__DEBUGLINK, - SYMTAB__BUILD_ID_CACHE, - SYMTAB__FEDORA_DEBUGINFO, - SYMTAB__UBUNTU_DEBUGINFO, - SYMTAB__BUILDID_DEBUGINFO, - SYMTAB__SYSTEM_PATH_DSO, - SYMTAB__GUEST_KMODULE, - SYMTAB__SYSTEM_PATH_KMODULE, - SYMTAB__NOT_FOUND, -}; - char dso__symtab_origin(const struct dso *dso); void dso__set_long_name(struct dso *dso, char *name); void dso__set_build_id(struct dso *dso, void *build_id); @@ -304,4 +304,6 @@ bool symbol_type__is_a(char symbol_type, enum map_type map_type); size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); +int dso__binary_type_file(struct dso *dso, enum dso_binary_type type, + char *root_dir, char *file, size_t size); #endif /* __PERF_SYMBOL */ -- 1.7.1