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Subject: [bug#68058] [PATCH] gnu: cross-gcc-toolchain: Add native-search-paths.
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* gnu/packages/cross-base.scm (cross-gcc-toolchain): Add
  native-search-paths.

Change-Id: Ib4cc510fde71b8d3140e1001c3931f74300da8a0
---
 gnu/packages/cross-base.scm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
index 6ee7b315d8..dc6f7922d6 100644
--- a/gnu/packages/cross-base.scm
+++ b/gnu/packages/cross-base.scm
@@ -760,6 +760,7 @@ (define* (cross-gcc-toolchain/implementation target
                  (((names . directory) ...)
                   (union-build #$output directory))))))
     (inputs `(,xbinutils ,xgcc ,@(if libc (list libc) '())))
+    (native-search-paths (package-search-paths xgcc))
     (home-page (package-home-page xgcc))
     (synopsis
      (format #f "Complete GCC tool chain for C/C++ development (~a)" target))

base-commit: 756ba0429e84ee0f8ce30484439b78c00c61d286
-- 
2.41.0

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To: Jean-Pierre De Jesus DIAZ <jean@HIDDEN>
Subject: bug#68058: Acknowledgement ([PATCH] gnu: cross-gcc-toolchain: Add
 native-search-paths.)
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Subject: [bug#68058] [PATCH] gnu: cross-gcc-toolchain: Add native-search-paths.
Resent-From: Thiago Jung Bauermann <thiago.bauermann@HIDDEN>
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 (Jean-Pierre De Jesus DIAZ via Guix-patches via's message of "Wed, 27
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Hello,

[ What I'm saying here is a duplicate of what I just sent in issue
  #69394, but I think it's useful to have these comments together with
  the patch, to facilitate discussion about it.  ]

Jean-Pierre De Jesus DIAZ via Guix-patches via <guix-patches@HIDDEN> write=
s:

> * gnu/packages/cross-base.scm (cross-gcc-toolchain): Add
>   native-search-paths.
>
> Change-Id: Ib4cc510fde71b8d3140e1001c3931f74300da8a0
> ---
>  gnu/packages/cross-base.scm | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
> index 6ee7b315d8..dc6f7922d6 100644
> --- a/gnu/packages/cross-base.scm
> +++ b/gnu/packages/cross-base.scm
> @@ -760,6 +760,7 @@ (define* (cross-gcc-toolchain/implementation target
>                   (((names . directory) ...)
>                    (union-build #$output directory))))))
>      (inputs `(,xbinutils ,xgcc ,@(if libc (list libc) '())))
> +    (native-search-paths (package-search-paths xgcc))
>      (home-page (package-home-page xgcc))
>      (synopsis
>       (format #f "Complete GCC tool chain for C/C++ development (~a)" tar=
get))
>
> base-commit: 756ba0429e84ee0f8ce30484439b78c00c61d286

Today I ran into the problem described in issue 69394 with a custom
aarch64-linux-gnu cross toolchain:

$ aarch64-linux-gnu-gcc -o ~/tmp/hello -g ~/tmp/hello.c
aarch64-linux-gnu-ld: cannot find crt1.o: No such file or directory
aarch64-linux-gnu-ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status

And I was able to fix it by locally applying the patch above. Thank you!

IMHO this patch should be applied.

In issue 69394 you wrote that this solution doesn't work when there are
multiple cross toolchains installed on the same profile (the CROSS_
environment variables would have all the cross toolchains), but I think
that moving from allowing zero cross toolchain installed in the
profile=C2=B9 to one cross toolchain installed is already an improvement. :=
-)

--
Thiago

=C2=B9 Except for bare-metal cross toolchains, which IIUC don't have this
  problem because they don't use crt*.o files?

Message sent to guix-patches@HIDDEN:

Subject: [bug#68058] [PATCH] gnu: cross-gcc-toolchain: Add native-search-paths.
Resent-From: Thiago Jung Bauermann <thiago.bauermann@HIDDEN>
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From: Thiago Jung Bauermann <thiago.bauermann@HIDDEN>
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 (Jean-Pierre De Jesus DIAZ via Guix-patches via's message of "Wed, 27
 Dec 2023 13:09:45 +0100")
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Hello,

[ What I'm saying here is a duplicate of what I just sent in issue
  #69394, but I think it's useful to have these comments together with
  the patch, to facilitate discussion about it.  ]

Jean-Pierre De Jesus DIAZ via Guix-patches via <guix-patches@HIDDEN> write=
s:

> * gnu/packages/cross-base.scm (cross-gcc-toolchain): Add
>   native-search-paths.
>
> Change-Id: Ib4cc510fde71b8d3140e1001c3931f74300da8a0
> ---
>  gnu/packages/cross-base.scm | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
> index 6ee7b315d8..dc6f7922d6 100644
> --- a/gnu/packages/cross-base.scm
> +++ b/gnu/packages/cross-base.scm
> @@ -760,6 +760,7 @@ (define* (cross-gcc-toolchain/implementation target
>                   (((names . directory) ...)
>                    (union-build #$output directory))))))
>      (inputs `(,xbinutils ,xgcc ,@(if libc (list libc) '())))
> +    (native-search-paths (package-search-paths xgcc))
>      (home-page (package-home-page xgcc))
>      (synopsis
>       (format #f "Complete GCC tool chain for C/C++ development (~a)" tar=
get))
>
> base-commit: 756ba0429e84ee0f8ce30484439b78c00c61d286

Today I ran into the problem described in issue 69394 with a custom
aarch64-linux-gnu cross toolchain:

$ aarch64-linux-gnu-gcc -o ~/tmp/hello -g ~/tmp/hello.c
aarch64-linux-gnu-ld: cannot find crt1.o: No such file or directory
aarch64-linux-gnu-ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status

And I was able to fix it by locally applying the patch above. Thank you!

IMHO this patch should be applied.

In issue 69394 you wrote that this solution doesn't work when there are
multiple cross toolchains installed on the same profile (the CROSS_
environment variables would have all the cross toolchains), but I think
that moving from allowing zero cross toolchain installed in the
profile=C2=B9 to one cross toolchain installed is already an improvement. :=
-)

--
Thiago

=C2=B9 Except for bare-metal cross toolchains, which IIUC don't have this
  problem because they don't use crt*.o files?

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Hi Thiago,

>In issue 69394 you wrote that this solution doesn't work when there are
>multiple cross toolchains installed on the same profile (the CROSS_
>environment variables would have all the cross toolchains), but I think
>that moving from allowing zero cross toolchain installed in the
>profile=C2=B9 to one cross toolchain installed is already an improvement. =
:-)

And

>=C2=B9 Except for bare-metal cross toolchains, which IIUC don't have this
>  problem because they don't use crt*.o files?

It's only a problem with the platforms that provide a C standard library so
bare-metal ones are unaffected.  However some of the bare-metal targets
provide a C standard library like `avr' or `arm-none-eabi' which I'm still
working on, they both provide AVR Libc and Newlib respectively and suffer
from the same problem.

That said there's no downside on the patch other than the bad user
experience IMO, but the bad UX is already there anyway but I think also
this should be merged so that we can start making progress towards
having more functional cross toolchain packages.

On Tue, Apr 9, 2024 at 10:44=E2=80=AFPM Thiago Jung Bauermann
<thiago.bauermann@HIDDEN> wrote:
>
>
> Hello,
>
> [ What I'm saying here is a duplicate of what I just sent in issue
>   #69394, but I think it's useful to have these comments together with
>   the patch, to facilitate discussion about it.  ]
>
> Jean-Pierre De Jesus DIAZ via Guix-patches via <guix-patches@HIDDEN> wri=
tes:
>
> > * gnu/packages/cross-base.scm (cross-gcc-toolchain): Add
> >   native-search-paths.
> >
> > Change-Id: Ib4cc510fde71b8d3140e1001c3931f74300da8a0
> > ---
> >  gnu/packages/cross-base.scm | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
> > index 6ee7b315d8..dc6f7922d6 100644
> > --- a/gnu/packages/cross-base.scm
> > +++ b/gnu/packages/cross-base.scm
> > @@ -760,6 +760,7 @@ (define* (cross-gcc-toolchain/implementation target
> >                   (((names . directory) ...)
> >                    (union-build #$output directory))))))
> >      (inputs `(,xbinutils ,xgcc ,@(if libc (list libc) '())))
> > +    (native-search-paths (package-search-paths xgcc))
> >      (home-page (package-home-page xgcc))
> >      (synopsis
> >       (format #f "Complete GCC tool chain for C/C++ development (~a)" t=
arget))
> >
> > base-commit: 756ba0429e84ee0f8ce30484439b78c00c61d286
>
> Today I ran into the problem described in issue 69394 with a custom
> aarch64-linux-gnu cross toolchain:
>
> $ aarch64-linux-gnu-gcc -o ~/tmp/hello -g ~/tmp/hello.c
> aarch64-linux-gnu-ld: cannot find crt1.o: No such file or directory
> aarch64-linux-gnu-ld: cannot find crti.o: No such file or directory
> collect2: error: ld returned 1 exit status
>
> And I was able to fix it by locally applying the patch above. Thank you!
>
> IMHO this patch should be applied.
>
> In issue 69394 you wrote that this solution doesn't work when there are
> multiple cross toolchains installed on the same profile (the CROSS_
> environment variables would have all the cross toolchains), but I think
> that moving from allowing zero cross toolchain installed in the
> profile=C2=B9 to one cross toolchain installed is already an improvement.=
 :-)
>
> --
> Thiago
>
> =C2=B9 Except for bare-metal cross toolchains, which IIUC don't have this
>   problem because they don't use crt*.o files?

Message sent to guix-patches@HIDDEN:

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Hi Thiago,

>In issue 69394 you wrote that this solution doesn't work when there are
>multiple cross toolchains installed on the same profile (the CROSS_
>environment variables would have all the cross toolchains), but I think
>that moving from allowing zero cross toolchain installed in the
>profile=C2=B9 to one cross toolchain installed is already an improvement. =
:-)

And

>=C2=B9 Except for bare-metal cross toolchains, which IIUC don't have this
>  problem because they don't use crt*.o files?

It's only a problem with the platforms that provide a C standard library so
bare-metal ones are unaffected.  However some of the bare-metal targets
provide a C standard library like `avr' or `arm-none-eabi' which I'm still
working on, they both provide AVR Libc and Newlib respectively and suffer
from the same problem.

That said there's no downside on the patch other than the bad user
experience IMO, but the bad UX is already there anyway but I think also
this should be merged so that we can start making progress towards
having more functional cross toolchain packages.

On Tue, Apr 9, 2024 at 10:44=E2=80=AFPM Thiago Jung Bauermann
<thiago.bauermann@HIDDEN> wrote:
>
>
> Hello,
>
> [ What I'm saying here is a duplicate of what I just sent in issue
>   #69394, but I think it's useful to have these comments together with
>   the patch, to facilitate discussion about it.  ]
>
> Jean-Pierre De Jesus DIAZ via Guix-patches via <guix-patches@HIDDEN> wri=
tes:
>
> > * gnu/packages/cross-base.scm (cross-gcc-toolchain): Add
> >   native-search-paths.
> >
> > Change-Id: Ib4cc510fde71b8d3140e1001c3931f74300da8a0
> > ---
> >  gnu/packages/cross-base.scm | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
> > index 6ee7b315d8..dc6f7922d6 100644
> > --- a/gnu/packages/cross-base.scm
> > +++ b/gnu/packages/cross-base.scm
> > @@ -760,6 +760,7 @@ (define* (cross-gcc-toolchain/implementation target
> >                   (((names . directory) ...)
> >                    (union-build #$output directory))))))
> >      (inputs `(,xbinutils ,xgcc ,@(if libc (list libc) '())))
> > +    (native-search-paths (package-search-paths xgcc))
> >      (home-page (package-home-page xgcc))
> >      (synopsis
> >       (format #f "Complete GCC tool chain for C/C++ development (~a)" t=
arget))
> >
> > base-commit: 756ba0429e84ee0f8ce30484439b78c00c61d286
>
> Today I ran into the problem described in issue 69394 with a custom
> aarch64-linux-gnu cross toolchain:
>
> $ aarch64-linux-gnu-gcc -o ~/tmp/hello -g ~/tmp/hello.c
> aarch64-linux-gnu-ld: cannot find crt1.o: No such file or directory
> aarch64-linux-gnu-ld: cannot find crti.o: No such file or directory
> collect2: error: ld returned 1 exit status
>
> And I was able to fix it by locally applying the patch above. Thank you!
>
> IMHO this patch should be applied.
>
> In issue 69394 you wrote that this solution doesn't work when there are
> multiple cross toolchains installed on the same profile (the CROSS_
> environment variables would have all the cross toolchains), but I think
> that moving from allowing zero cross toolchain installed in the
> profile=C2=B9 to one cross toolchain installed is already an improvement.=
 :-)
>
> --
> Thiago
>
> =C2=B9 Except for bare-metal cross toolchains, which IIUC don't have this
>   problem because they don't use crt*.o files?

Message sent to guix-patches@HIDDEN:

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 Content preview: Hi! I ran into the same problem as Thiago Jung Bauerman. Also
 with an aarch64-linux-gnu toolchain. Therefore i am also in favor to merge
 this patch. Thanks for the work. 
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--00000000000077b0cf061892ca26
Content-Type: text/plain; charset="UTF-8"

Hi!

I ran into the same problem as Thiago Jung Bauerman. Also with an
aarch64-linux-gnu
toolchain. Therefore i am also in favor to merge this patch.

Thanks for the work.

Best regards

Christoph

--00000000000077b0cf061892ca26
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<div dir=3D"ltr"><div>Hi!</div><div><br></div><div>I ran into the same prob=
lem as=20
<span class=3D"gmail-address">Thiago Jung Bauerman. Also with an aarch64-li=
nux-gnu</span></div><div><span class=3D"gmail-address">toolchain. Therefore=
 i am also in favor to merge this patch.</span></div><div><span class=3D"gm=
ail-address"><br></span></div><div><span class=3D"gmail-address">Thanks for=
 the work.</span></div><div><span class=3D"gmail-address"><br></span></div>=
<div><span class=3D"gmail-address">Best regards</span></div><div><span clas=
s=3D"gmail-address"><br></span></div><div><span class=3D"gmail-address">Chr=
istoph<br></span>=20

</div></div>

--00000000000077b0cf061892ca26--

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Hello everyone,

I am currently trying to do some stuff around the arm-none-eabi toolchain,
namely also adding the 12.3 gcc toolchain. I am facing a problem with
this. Currently the `search-paths` of xgcc also include "include",
"include/c++", "lib" and "lib64" instead of just the ones under
"$target/include", ... Because of this, and mainly because they
come first, newlib doesn't build as it picks up wrong included file.
This is easily fixed by not adding the top-level include and lib,
but only the ones under the target.

Do you happen to know why the search-paths contain these for the
cross builds? And even if that is sensible, is this really the way
to go even for native-search-paths, shouldn't the top ones
be removed, or at least moved after the ones under target?

Regards,
Rutherther

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