linux-kernel - Re: [PATCH 8/9] tools, perf: Make srcline output address with -v

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 16 May 2014 11:53:40 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...radead.org, mingo@...nel.org, linux-kernel@...r.kernel.org,
	peterz@...radead.org, eranian@...gle.com, namhyung@...nel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 8/9] tools, perf: Make srcline output address with -v

On Mon, May 12, 2014 at 04:20:28PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> Requested by Jiri.
> 

need more description, I can't send out patch with changelog like this

thanks,
jirka


> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  tools/perf/util/srcline.c | 18 +++++++++++++++---
>  1 file changed, 15 insertions(+), 3 deletions(-)
> 
> diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
> index 36a7aff..a22be7c 100644
> --- a/tools/perf/util/srcline.c
> +++ b/tools/perf/util/srcline.c
> @@ -258,6 +258,12 @@ char *get_srcline(struct dso *dso, unsigned long addr, struct symbol *sym,
>  	unsigned line = 0;
>  	char *srcline;
>  	const char *dso_name;
> +	char astr[50];
> +
> +	if (verbose)
> +		snprintf(astr, sizeof astr, " %#lx", addr);
> +	else
> +		astr[0] = 0;
>  
>  	if (!dso->has_srcline)
>  		goto out;
> @@ -276,7 +282,12 @@ char *get_srcline(struct dso *dso, unsigned long addr, struct symbol *sym,
>  	if (!addr2line(dso_name, addr, &file, &line, dso))
>  		goto out;
>  
> -	if (asprintf(&srcline, "%s:%u", basename(file), line) < 0) {
> +	if (line == 0) {
> +		free(file);
> +		goto fallback;
> +	}
> +
> +	if (asprintf(&srcline, "%s:%u%s", basename(file), line, astr) < 0) {
>  		free(file);
>  		goto out;
>  	}
> @@ -291,9 +302,10 @@ out:
>  		dso->has_srcline = 0;
>  		dso__free_a2l(dso);
>  	}
> +fallback:
>  	if (sym) {
> -		if (asprintf(&srcline, "%s+%ld", show_sym ? sym->name : "",
> -					addr - sym->start) < 0)
> +		if (asprintf(&srcline, "%s+%ld%s", show_sym ? sym->name : "",
> +					addr - sym->start, astr) < 0)
>  			return SRCLINE_UNKNOWN;
>  	} else if (asprintf(&srcline, "%s[%lx]", dso->short_name, addr) < 0)
>  		return SRCLINE_UNKNOWN;
> -- 
> 1.9.0
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/