Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754430AbbK0Isw (ORCPT ); Fri, 27 Nov 2015 03:48:52 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:59637 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754361AbbK0Isq (ORCPT ); Fri, 27 Nov 2015 03:48:46 -0500 From: Wang Nan To: , CC: , , , , , Wang Nan , Arnaldo Carvalho de Melo Subject: [PATCH v2 03/13] perf tools: Rename bpf config to program config Date: Fri, 27 Nov 2015 08:47:37 +0000 Message-ID: <1448614067-197576-4-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1448614067-197576-1-git-send-email-wangnan0@huawei.com> References: <1448614067-197576-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.193.248] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.565818C8.0009,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 1f6793c69f8c806f2fd23b0bb558e407 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7638 Lines: 219 Following patches are going to introduce BPF object level configuration to enable setting values into BPF maps. To avoid confusion, this patch renames existing 'config' in bpf-loader.c to 'program config'. Following patches would introduce 'object config'. Signed-off-by: Wang Nan Cc: Alexei Starovoitov Cc: Arnaldo Carvalho de Melo Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Zefan Li Cc: pi3orama@163.com --- tools/perf/util/bpf-loader.c | 65 ++++++++++++++++++++++---------------------- tools/perf/util/bpf-loader.h | 2 +- 2 files changed, 33 insertions(+), 34 deletions(-) diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c index 36544e5..540a7ef 100644 --- a/tools/perf/util/bpf-loader.c +++ b/tools/perf/util/bpf-loader.c @@ -120,7 +120,7 @@ bpf_prog_priv__clear(struct bpf_program *prog __maybe_unused, } static int -config__exec(const char *value, struct perf_probe_event *pev) +prog_config__exec(const char *value, struct perf_probe_event *pev) { pev->uprobes = true; pev->target = strdup(value); @@ -130,7 +130,7 @@ config__exec(const char *value, struct perf_probe_event *pev) } static int -config__module(const char *value, struct perf_probe_event *pev) +prog_config__module(const char *value, struct perf_probe_event *pev) { pev->uprobes = false; pev->target = strdup(value); @@ -140,8 +140,7 @@ config__module(const char *value, struct perf_probe_event *pev) } static int -config__bool(const char *value, - bool *pbool, bool invert) +prog_config__bool(const char *value, bool *pbool, bool invert) { int err; bool bool_value; @@ -158,17 +157,17 @@ config__bool(const char *value, } static int -config__inlines(const char *value, - struct perf_probe_event *pev __maybe_unused) +prog_config__inlines(const char *value, + struct perf_probe_event *pev __maybe_unused) { - return config__bool(value, &probe_conf.no_inlines, true); + return prog_config__bool(value, &probe_conf.no_inlines, true); } static int -config__force(const char *value, - struct perf_probe_event *pev __maybe_unused) +prog_config__force(const char *value, + struct perf_probe_event *pev __maybe_unused) { - return config__bool(value, &probe_conf.force_add, false); + return prog_config__bool(value, &probe_conf.force_add, false); } static struct { @@ -176,58 +175,58 @@ static struct { const char *usage; const char *desc; int (*func)(const char *, struct perf_probe_event *); -} bpf_config_terms[] = { +} bpf_prog_config_terms[] = { { .key = "exec", .usage = "exec=", .desc = "Set uprobe target", - .func = config__exec, + .func = prog_config__exec, }, { .key = "module", .usage = "module= ", .desc = "Set kprobe module", - .func = config__module, + .func = prog_config__module, }, { .key = "inlines", .usage = "inlines=[yes|no] ", .desc = "Probe at inline symbol", - .func = config__inlines, + .func = prog_config__inlines, }, { .key = "force", .usage = "force=[yes|no] ", .desc = "Forcibly add events with existing name", - .func = config__force, + .func = prog_config__force, }, }; static int -do_config(const char *key, const char *value, - struct perf_probe_event *pev) +do_prog_config(const char *key, const char *value, + struct perf_probe_event *pev) { unsigned int i; pr_debug("config bpf program: %s=%s\n", key, value); - for (i = 0; i < ARRAY_SIZE(bpf_config_terms); i++) - if (strcmp(key, bpf_config_terms[i].key) == 0) - return bpf_config_terms[i].func(value, pev); + for (i = 0; i < ARRAY_SIZE(bpf_prog_config_terms); i++) + if (strcmp(key, bpf_prog_config_terms[i].key) == 0) + return bpf_prog_config_terms[i].func(value, pev); - pr_debug("BPF: ERROR: invalid config option in object: %s=%s\n", + pr_debug("BPF: ERROR: invalid program config option: %s=%s\n", key, value); - pr_debug("\nHint: Currently valid options are:\n"); - for (i = 0; i < ARRAY_SIZE(bpf_config_terms); i++) - pr_debug("\t%s:\t%s\n", bpf_config_terms[i].usage, - bpf_config_terms[i].desc); + pr_debug("\nHint: Valid options are:\n"); + for (i = 0; i < ARRAY_SIZE(bpf_prog_config_terms); i++) + pr_debug("\t%s:\t%s\n", bpf_prog_config_terms[i].usage, + bpf_prog_config_terms[i].desc); pr_debug("\n"); - return -BPF_LOADER_ERRNO__CONFIG_TERM; + return -BPF_LOADER_ERRNO__PROGCONF_TERM; } static const char * -parse_config_kvpair(const char *config_str, struct perf_probe_event *pev) +parse_prog_config_kvpair(const char *config_str, struct perf_probe_event *pev) { char *text = strdup(config_str); char *sep, *line; @@ -253,7 +252,7 @@ parse_config_kvpair(const char *config_str, struct perf_probe_event *pev) } *equ = '\0'; - err = do_config(line, equ + 1, pev); + err = do_prog_config(line, equ + 1, pev); if (err) break; nextline: @@ -268,10 +267,10 @@ nextline: } static int -parse_config(const char *config_str, struct perf_probe_event *pev) +parse_prog_config(const char *config_str, struct perf_probe_event *pev) { int err; - const char *main_str = parse_config_kvpair(config_str, pev); + const char *main_str = parse_prog_config_kvpair(config_str, pev); if (IS_ERR(main_str)) return PTR_ERR(main_str); @@ -312,7 +311,7 @@ config_bpf_program(struct bpf_program *prog) pev = &priv->pev; pr_debug("bpf: config program '%s'\n", config_str); - err = parse_config(config_str, pev); + err = parse_prog_config(config_str, pev); if (err) goto errout; @@ -750,7 +749,7 @@ static const char *bpf_loader_strerror_table[NR_ERRNO] = { [ERRCODE_OFFSET(EVENTNAME)] = "No event name found in config string", [ERRCODE_OFFSET(INTERNAL)] = "BPF loader internal error", [ERRCODE_OFFSET(COMPILE)] = "Error when compiling BPF scriptlet", - [ERRCODE_OFFSET(CONFIG_TERM)] = "Invalid config term in config string", + [ERRCODE_OFFSET(PROGCONF_TERM)] = "Invalid program config term in config string", [ERRCODE_OFFSET(PROLOGUE)] = "Failed to generate prologue", [ERRCODE_OFFSET(PROLOGUE2BIG)] = "Prologue too big for program", [ERRCODE_OFFSET(PROLOGUEOOB)] = "Offset out of bound for prologue", @@ -834,7 +833,7 @@ int bpf__strerror_probe(struct bpf_object *obj __maybe_unused, int err, char *buf, size_t size) { bpf__strerror_head(err, buf, size); - case BPF_LOADER_ERRNO__CONFIG_TERM: { + case BPF_LOADER_ERRNO__PROGCONF_TERM: { scnprintf(buf, size, "%s (add -v to see detail)", emsg); break; } diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h index a58740b..6fdc045 100644 --- a/tools/perf/util/bpf-loader.h +++ b/tools/perf/util/bpf-loader.h @@ -20,7 +20,7 @@ enum bpf_loader_errno { BPF_LOADER_ERRNO__EVENTNAME, /* Event name is missing */ BPF_LOADER_ERRNO__INTERNAL, /* BPF loader internal error */ BPF_LOADER_ERRNO__COMPILE, /* Error when compiling BPF scriptlet */ - BPF_LOADER_ERRNO__CONFIG_TERM, /* Invalid config term in config term */ + BPF_LOADER_ERRNO__PROGCONF_TERM,/* Invalid program config term in config string */ BPF_LOADER_ERRNO__PROLOGUE, /* Failed to generate prologue */ BPF_LOADER_ERRNO__PROLOGUE2BIG, /* Prologue too big for program */ BPF_LOADER_ERRNO__PROLOGUEOOB, /* Offset out of bound for prologue */ -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/