perf annotate: Refactor the code to parse disassemble lines with {l,r}trim()

When parsing disassemble lines, use ltrim() and rtrim() to strip them,
not using just while loop and isspace().

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1491612748-1605-2-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 44ed665..204790d 100644 (file)
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -387,9 +387,7 @@ static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map *m
        if (comment == NULL)
                return 0;
 
-       while (comment[0] != '\0' && isspace(comment[0]))
-               ++comment;
-
+       comment = ltrim(comment);
        comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
        comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 
@@ -434,9 +432,7 @@ static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops
        if (comment == NULL)
                return 0;
 
-       while (comment[0] != '\0' && isspace(comment[0]))
-               ++comment;
-
+       comment = ltrim(comment);
        comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 
        return 0;
@@ -785,10 +781,7 @@ static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, str
 
 static int disasm_line__parse(char *line, const char **namep, char **rawp)
 {
-       char *name = line, tmp;
-
-       while (isspace(name[0]))
-               ++name;
+       char tmp, *name = ltrim(line);
 
        if (name[0] == '\0')
                return -1;
@@ -806,12 +799,7 @@ static int disasm_line__parse(char *line, const char **namep, char **rawp)
                goto out_free_name;
 
        (*rawp)[0] = tmp;
-
-       if ((*rawp)[0] != '\0') {
-               (*rawp)++;
-               while (isspace((*rawp)[0]))
-                       ++(*rawp);
-       }
+       *rawp = ltrim(*rawp);
 
        return 0;
 
@@ -1156,7 +1144,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
 {
        struct annotation *notes = symbol__annotation(sym);
        struct disasm_line *dl;
-       char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
+       char *line = NULL, *parsed_line, *tmp, *tmp2;
        size_t line_len;
        s64 line_ip, offset = -1;
        regmatch_t match[2];
@@ -1167,15 +1155,8 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
        if (!line)
                return -1;
 
-       while (line_len != 0 && isspace(line[line_len - 1]))
-               line[--line_len] = '\0';
-
-       c = strchr(line, '\n');
-       if (c)
-               *c = 0;
-
        line_ip = -1;
-       parsed_line = line;
+       parsed_line = rtrim(line);
 
        /* /filename:linenr ? Save line number and ignore. */
        if (regexec(&file_lineno, line, 2, match, 0) == 0) {
@@ -1183,16 +1164,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
                return 0;
        }
 
-       /*
-        * Strip leading spaces:
-        */
-       tmp = line;
-       while (*tmp) {
-               if (*tmp != ' ')
-                       break;
-               tmp++;
-       }
-
+       tmp = ltrim(parsed_line);
        if (*tmp) {
                /*
                 * Parse hexa addresses followed by ':'