From: Masami Hiramatsu Date: Thu, 6 Feb 2014 05:32:09 +0000 (+0000) Subject: perf probe: Replace line_list with intlist X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5a62257a3ddd1a09cf278eae0697fcbe20897447;p=linux-beck.git perf probe: Replace line_list with intlist Replace line_list (struct line_node) with intlist for reducing similar codes. Signed-off-by: Masami Hiramatsu Acked-by: Namhyung Kim Cc: David Ahern Cc: "David A. Long" Cc: Ingo Molnar Cc: Namhyung Kim Cc: Oleg Nesterov Cc: Srikar Dronamraju Cc: Steven Rostedt Cc: yrl.pp-manager.tt@hitachi.com Link: http://lkml.kernel.org/r/20140206053209.29635.81043.stgit@kbuild-fedora.yrl.intra.hitachi.co.jp Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index 78948882e3de..cdcd4eb3a57d 100644 --- a/tools/perf/builtin-probe.c +++ b/tools/perf/builtin-probe.c @@ -268,9 +268,9 @@ static int opt_set_filter(const struct option *opt __maybe_unused, return 0; } -static void init_params(void) +static int init_params(void) { - line_range__init(¶ms.line_range); + return line_range__init(¶ms.line_range); } static void cleanup_params(void) @@ -515,9 +515,11 @@ int cmd_probe(int argc, const char **argv, const char *prefix) { int ret; - init_params(); - ret = __cmd_probe(argc, argv, prefix); - cleanup_params(); + ret = init_params(); + if (!ret) { + ret = __cmd_probe(argc, argv, prefix); + cleanup_params(); + } return ret; } diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index a4649e7449c5..f70fd08f00b7 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -561,7 +561,7 @@ static int _show_one_line(FILE *fp, int l, bool skip, bool show_num) static int __show_line_range(struct line_range *lr, const char *module) { int l = 1; - struct line_node *ln; + struct int_node *ln; struct debuginfo *dinfo; FILE *fp; int ret; @@ -614,8 +614,8 @@ static int __show_line_range(struct line_range *lr, const char *module) goto end; } - list_for_each_entry(ln, &lr->line_list, list) { - for (; ln->line > l; l++) { + intlist__for_each(ln, lr->line_list) { + for (; ln->i > l; l++) { ret = show_one_line(fp, l - lr->offset); if (ret < 0) goto end; @@ -775,24 +775,22 @@ int show_available_vars(struct perf_probe_event *pevs __maybe_unused, void line_range__clear(struct line_range *lr) { - struct line_node *ln; - free(lr->function); free(lr->file); free(lr->path); free(lr->comp_dir); - while (!list_empty(&lr->line_list)) { - ln = list_first_entry(&lr->line_list, struct line_node, list); - list_del(&ln->list); - free(ln); - } + intlist__delete(lr->line_list); memset(lr, 0, sizeof(*lr)); } -void line_range__init(struct line_range *lr) +int line_range__init(struct line_range *lr) { memset(lr, 0, sizeof(*lr)); - INIT_LIST_HEAD(&lr->line_list); + lr->line_list = intlist__new(NULL); + if (!lr->line_list) + return -ENOMEM; + else + return 0; } static int parse_line_num(char **ptr, int *val, const char *what) diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h index fcaf7273e85a..776c9347a3b6 100644 --- a/tools/perf/util/probe-event.h +++ b/tools/perf/util/probe-event.h @@ -2,6 +2,7 @@ #define _PROBE_EVENT_H #include +#include "intlist.h" #include "strlist.h" #include "strfilter.h" @@ -76,13 +77,6 @@ struct perf_probe_event { struct perf_probe_arg *args; /* Arguments */ }; - -/* Line number container */ -struct line_node { - struct list_head list; - int line; -}; - /* Line range */ struct line_range { char *file; /* File name */ @@ -92,7 +86,7 @@ struct line_range { int offset; /* Start line offset */ char *path; /* Real path name */ char *comp_dir; /* Compile directory */ - struct list_head line_list; /* Visible lines */ + struct intlist *line_list; /* Visible lines */ }; /* List of variables */ @@ -124,7 +118,7 @@ extern int parse_line_range_desc(const char *cmd, struct line_range *lr); extern void line_range__clear(struct line_range *lr); /* Initialize line range */ -extern void line_range__init(struct line_range *lr); +extern int line_range__init(struct line_range *lr); /* Internal use: Return kernel/module path */ extern const char *kernel_get_module_path(const char *module); diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 061edb162b5b..e5e589fdef9b 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -35,6 +35,7 @@ #include #include "event.h" #include "debug.h" +#include "intlist.h" #include "util.h" #include "symbol.h" #include "probe-finder.h" @@ -42,65 +43,6 @@ /* Kprobe tracer basic type is up to u64 */ #define MAX_BASIC_TYPE_BITS 64 -/* Line number list operations */ - -/* Add a line to line number list */ -static int line_list__add_line(struct list_head *head, int line) -{ - struct line_node *ln; - struct list_head *p; - - /* Reverse search, because new line will be the last one */ - list_for_each_entry_reverse(ln, head, list) { - if (ln->line < line) { - p = &ln->list; - goto found; - } else if (ln->line == line) /* Already exist */ - return 1; - } - /* List is empty, or the smallest entry */ - p = head; -found: - pr_debug("line list: add a line %u\n", line); - ln = zalloc(sizeof(struct line_node)); - if (ln == NULL) - return -ENOMEM; - ln->line = line; - INIT_LIST_HEAD(&ln->list); - list_add(&ln->list, p); - return 0; -} - -/* Check if the line in line number list */ -static int line_list__has_line(struct list_head *head, int line) -{ - struct line_node *ln; - - /* Reverse search, because new line will be the last one */ - list_for_each_entry(ln, head, list) - if (ln->line == line) - return 1; - - return 0; -} - -/* Init line number list */ -static void line_list__init(struct list_head *head) -{ - INIT_LIST_HEAD(head); -} - -/* Free line number list */ -static void line_list__free(struct list_head *head) -{ - struct line_node *ln; - while (!list_empty(head)) { - ln = list_first_entry(head, struct line_node, list); - list_del(&ln->list); - free(ln); - } -} - /* Dwarf FL wrappers */ static char *debuginfo_path; /* Currently dummy */ @@ -880,7 +822,7 @@ static int find_probe_point_by_line(struct probe_finder *pf) } /* Find lines which match lazy pattern */ -static int find_lazy_match_lines(struct list_head *head, +static int find_lazy_match_lines(struct intlist *list, const char *fname, const char *pat) { FILE *fp; @@ -901,7 +843,7 @@ static int find_lazy_match_lines(struct list_head *head, line[len - 1] = '\0'; if (strlazymatch(line, pat)) { - line_list__add_line(head, linenum); + intlist__add(list, linenum); count++; } linenum++; @@ -924,7 +866,7 @@ static int probe_point_lazy_walker(const char *fname, int lineno, Dwarf_Die *sc_die, die_mem; int ret; - if (!line_list__has_line(&pf->lcache, lineno) || + if (!intlist__has_entry(pf->lcache, lineno) || strtailcmp(fname, pf->fname) != 0) return 0; @@ -952,9 +894,9 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf) { int ret = 0; - if (list_empty(&pf->lcache)) { + if (intlist__empty(pf->lcache)) { /* Matching lazy line pattern */ - ret = find_lazy_match_lines(&pf->lcache, pf->fname, + ret = find_lazy_match_lines(pf->lcache, pf->fname, pf->pev->point.lazy_line); if (ret <= 0) return ret; @@ -1096,7 +1038,9 @@ static int debuginfo__find_probes(struct debuginfo *dbg, #endif off = 0; - line_list__init(&pf->lcache); + pf->lcache = intlist__new(NULL); + if (!pf->lcache) + return -ENOMEM; /* Fastpath: lookup by function name from .debug_pubnames section */ if (pp->function) { @@ -1149,7 +1093,8 @@ static int debuginfo__find_probes(struct debuginfo *dbg, } found: - line_list__free(&pf->lcache); + intlist__delete(pf->lcache); + pf->lcache = NULL; return ret; } @@ -1537,7 +1482,7 @@ static int line_range_add_line(const char *src, unsigned int lineno, if (lr->path == NULL) return -ENOMEM; } - return line_list__add_line(&lr->line_list, lineno); + return intlist__add(lr->line_list, lineno); } static int line_range_walk_cb(const char *fname, int lineno, @@ -1565,7 +1510,7 @@ static int find_line_range_by_line(Dwarf_Die *sp_die, struct line_finder *lf) /* Update status */ if (ret >= 0) - if (!list_empty(&lf->lr->line_list)) + if (!intlist__empty(lf->lr->line_list)) ret = lf->found = 1; else ret = 0; /* Lines are not found */ diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h index ffc33cdd25cc..592c4dac3be9 100644 --- a/tools/perf/util/probe-finder.h +++ b/tools/perf/util/probe-finder.h @@ -3,6 +3,7 @@ #include #include "util.h" +#include "intlist.h" #include "probe-event.h" #define MAX_PROBE_BUFFER 1024 @@ -66,7 +67,7 @@ struct probe_finder { const char *fname; /* Real file name */ Dwarf_Die cu_die; /* Current CU */ Dwarf_Die sp_die; - struct list_head lcache; /* Line cache for lazy match */ + struct intlist *lcache; /* Line cache for lazy match */ /* For variable searching */ #if _ELFUTILS_PREREQ(0, 142)