linux-kernel - Re: [PATCH v2 2/4] perf tools: Add link argument to dso__find_symbol_by

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Date:	Wed, 14 Jan 2015 09:36:34 -0700
From:	David Ahern <dsahern@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Subject: Re: [PATCH v2 2/4] perf tools: Add link argument to dso__find_symbol_by_name()

On 1/14/15 4:18 AM, Namhyung Kim wrote:
> @@ -414,10 +414,24 @@ static struct symbol *symbols__find_by_name(struct rb_root *symbols,
>   		else if (cmp > 0)
>   			n = n->rb_right;
>   		else
> -			return &s->sym;
> +			break;
>   	}
>
> -	return NULL;
> +	if (n == NULL)
> +		return NULL;
> +
> +	/* return first symbol that has same name (if any) */
> +	for (n = rb_prev(n); n; n = rb_prev(n)) {
> +		struct symbol_name_rb_node *tmp;
> +
> +		tmp = rb_entry(n, struct symbol_name_rb_node, rb_node);
> +		if (strcmp(tmp->sym.name, s->sym.name))

strcmp() == 0?

> +			break;
> +
> +		s = tmp;
> +	}
> +
> +	return &s->sym;
>   }
>
>   struct symbol *dso__find_symbol(struct dso *dso,

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