How to apply "-Wl,--build-id" in all recipes?

How to apply "-Wl,--build-id" in all recipes?

[Changhyeok Bae]

Hi

I would like to apply "-Wl,--build-id" in all recipes option when I build a
image.
I tried to write TARGET_LDFLAGS += "-Wl,--build-d" and BUILD_LDFLAGS +=
"-Wl,--build-d" in local.conf.
But it's not applied.

Do you have any idea?

Thanks

Re: How to apply "-Wl,--build-id" in all recipes?

[Khem Raj]

On 14-08-04 09:53:12, Changhyeok Bae wrote:
> Hi
> 
> I would like to apply "-Wl,--build-id" in all recipes option when I build a
> image.
> I tried to write TARGET_LDFLAGS += "-Wl,--build-d" and BUILD_LDFLAGS +=
> "-Wl,--build-d" in local.conf.
> But it's not applied.
> 
> Do you have any idea?

Did you do it in local.conf or some other global config data files ?

Re: How to apply "-Wl,--build-id" in all recipes?

[Changhyeok Bae]

As I said, I applied the variable in local.conf.
The LDFLAGS env. variable is included '-Wl,--build-id'.
However, the variable is not applied at the linking time.

Thanks

-----Original Message-----
From: openembedded-devel-bounces@lists.openembedded.org
[mailto:openembedded-devel-bounces@lists.openembedded.org] On Behalf Of Khem
Raj
Sent: Monday, August 04, 2014 12:08 PM
To: openembedded-devel@lists.openembedded.org
Subject: Re: [oe] How to apply "-Wl,--build-id" in all recipes?

On 14-08-04 09:53:12, Changhyeok Bae wrote:
> Hi
> 
> I would like to apply "-Wl,--build-id" in all recipes option when I 
> build a image.
> I tried to write TARGET_LDFLAGS += "-Wl,--build-d" and BUILD_LDFLAGS 
> += "-Wl,--build-id" in local.conf.
> But it's not applied.
> 
> Do you have any idea?

Did you do it in local.conf or some other global config data files ?
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Re: How to apply "-Wl,--build-id" in all recipes?

[Christopher Larson]

On Sun, Aug 3, 2014 at 9:46 PM, Changhyeok Bae <changhyeok.bae@lge.com>
wrote:

> As I said, I applied the variable in local.conf.
> The LDFLAGS env. variable is included '-Wl,--build-id'.
> However, the variable is not applied at the linking time.
>

All recipes *should* ensure that the buildsystem of what they're building
obeys our LDFLAGS, but plenty do not. We used to spot these cases via the
GNU_HASH warnings, but now we build the internal toolchain with the default
gnu hash so cases where LDFLAGS isn't being obeyed are slightly more
difficult to detect unless you'er building with an external toolchain.
There are some fixes for such issues floating around in the meta-sourcery
repository until I get time to push them. So I expect it's a case by case
thing. It should be applied for most things, but it's possible that it
doesn't in others, and it'd be a bug in the cases where it isn't.
-- 
Christopher Larson
clarson at kergoth dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Senior Software Engineer, Mentor Graphics

Re: How to apply "-Wl,--build-id" in all recipes?

[Paul Eggleton]

Hi Chris,

On Saturday 09 August 2014 11:22:11 Christopher Larson wrote:
> On Sun, Aug 3, 2014 at 9:46 PM, Changhyeok Bae <changhyeok.bae@lge.com>
> wrote:
> > As I said, I applied the variable in local.conf.
> > The LDFLAGS env. variable is included '-Wl,--build-id'.
> > However, the variable is not applied at the linking time.
> 
> All recipes *should* ensure that the buildsystem of what they're building
> obeys our LDFLAGS, but plenty do not. We used to spot these cases via the
> GNU_HASH warnings, but now we build the internal toolchain with the default
> gnu hash so cases where LDFLAGS isn't being obeyed are slightly more
> difficult to detect unless you'er building with an external toolchain.

Hmm, when did this change? I was sure we still got this warning if the OE 
LDFLAGS weren't used...

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre