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* [PATCH v2] tools/python: pass more -rpath-link options to ld
@ 2020-11-04 14:57 Jan Beulich
  2020-11-04 17:19 ` Elliott Mitchell
  2020-11-04 17:22 ` Marek Marczykowski
  0 siblings, 2 replies; 4+ messages in thread
From: Jan Beulich @ 2020-11-04 14:57 UTC (permalink / raw)
  To: xen-devel@lists.xenproject.org; +Cc: Marek Marczykowski

With the split of libraries, I've observed a number of warnings from
(old?) ld.

Instead of duplicating the additions in two places, introduce a setup.py
make variable holding all the common parts of the invocations.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
v2: Pass on and use SHLIB_libxen*.
---
It's unclear to me whether this is ld version dependent - the pattern
of where I've seen such warnings doesn't suggest a clear version
dependency.

Obviously (I think) the other similar variables (XEN_libxen*,
CFLAGS_libxen*, etc) would better also be made use of to eliminate at
least most of the PATH_* variables, but that's not the purpose of this
change.

--- a/tools/python/Makefile
+++ b/tools/python/Makefile
@@ -8,19 +8,21 @@ PY_CFLAGS = $(CFLAGS) $(PY_NOOPT_CFLAGS)
 PY_LDFLAGS = $(SHLIB_LDFLAGS) $(APPEND_LDFLAGS)
 INSTALL_LOG = build/installed_files.txt
 
+setup.py = CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" \
+           SHLIB_libxenctrl="$(SHLIB_libxenctrl)" \
+           SHLIB_libxenguest="$(SHLIB_libxenguest)" \
+           SHLIB_libxenstore="$(SHLIB_libxenstore)" \
+           $(PYTHON) setup.py
+
 .PHONY: build
 build:
-	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build
+	$(setup.py) build
 
 .PHONY: install
 install:
 	$(INSTALL_DIR) $(DESTDIR)$(LIBEXEC_BIN)
-
-	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" \
-		LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py install \
-		--record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
+	$(setup.py) install --record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
 		--root="$(DESTDIR)" --force
-
 	$(INSTALL_PYTHON_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
 	$(INSTALL_PYTHON_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)
 
--- a/tools/python/setup.py
+++ b/tools/python/setup.py
@@ -4,6 +4,10 @@ import os, sys
 
 XEN_ROOT = "../.."
 
+SHLIB_libxenctrl = os.environ['SHLIB_libxenctrl'].split()
+SHLIB_libxenguest = os.environ['SHLIB_libxenguest'].split()
+SHLIB_libxenstore = os.environ['SHLIB_libxenstore'].split()
+
 extra_compile_args  = [ "-fno-strict-aliasing", "-Werror" ]
 
 PATH_XEN      = XEN_ROOT + "/tools/include"
@@ -24,7 +28,7 @@ xc = Extension("xc",
                library_dirs       = [ PATH_LIBXENCTRL, PATH_LIBXENGUEST ],
                libraries          = [ "xenctrl", "xenguest" ],
                depends            = [ PATH_LIBXENCTRL + "/libxenctrl.so", PATH_LIBXENGUEST + "/libxenguest.so" ],
-               extra_link_args    = [ "-Wl,-rpath-link="+PATH_LIBXENTOOLLOG ],
+               extra_link_args    = SHLIB_libxenctrl + SHLIB_libxenguest,
                sources            = [ "xen/lowlevel/xc/xc.c" ])
 
 xs = Extension("xs",
@@ -33,6 +37,7 @@ xs = Extension("xs",
                library_dirs       = [ PATH_XENSTORE ],
                libraries          = [ "xenstore" ],
                depends            = [ PATH_XENSTORE + "/libxenstore.so" ],
+               extra_link_args    = SHLIB_libxenstore,
                sources            = [ "xen/lowlevel/xs/xs.c" ])
 
 plat = os.uname()[0]


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH v2] tools/python: pass more -rpath-link options to ld
  2020-11-04 14:57 [PATCH v2] tools/python: pass more -rpath-link options to ld Jan Beulich
@ 2020-11-04 17:19 ` Elliott Mitchell
  2020-11-05  8:27   ` Jan Beulich
  2020-11-04 17:22 ` Marek Marczykowski
  1 sibling, 1 reply; 4+ messages in thread
From: Elliott Mitchell @ 2020-11-04 17:19 UTC (permalink / raw)
  To: Jan Beulich; +Cc: xen-devel@lists.xenproject.org, Marek Marczykowski

On Wed, Nov 04, 2020 at 03:57:49PM +0100, Jan Beulich wrote:
> --- a/tools/python/Makefile
> +++ b/tools/python/Makefile
> @@ -8,19 +8,21 @@ PY_CFLAGS = $(CFLAGS) $(PY_NOOPT_CFLAGS)
>  PY_LDFLAGS = $(SHLIB_LDFLAGS) $(APPEND_LDFLAGS)
>  INSTALL_LOG = build/installed_files.txt
>  
> +setup.py = CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" \
> +           SHLIB_libxenctrl="$(SHLIB_libxenctrl)" \
> +           SHLIB_libxenguest="$(SHLIB_libxenguest)" \
> +           SHLIB_libxenstore="$(SHLIB_libxenstore)" \
> +           $(PYTHON) setup.py
> +
>  .PHONY: build
>  build:
> -	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build
> +	$(setup.py) build
>  
>  .PHONY: install
>  install:
>  	$(INSTALL_DIR) $(DESTDIR)$(LIBEXEC_BIN)
> -
> -	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" \
> -		LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py install \
> -		--record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
> +	$(setup.py) install --record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
>  		--root="$(DESTDIR)" --force
> -
>  	$(INSTALL_PYTHON_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
>  	$(INSTALL_PYTHON_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)

Shouldn't similar work of moving all the environment variable settings to
a $(setup.py) variable be done for tools/pygrub/Makefile?

tools/python/Makefile and tools/pygrub/Makefile are presently quite
similar and keeping them similar seems a Good Idea(tm).


-- 
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 \BS (    |         ehem+sigmsg@m5p.com  PGP 87145445         |    )   /
  \_CS\   |  _____  -O #include <stddisclaimer.h> O-   _____  |   /  _/
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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH v2] tools/python: pass more -rpath-link options to ld
  2020-11-04 14:57 [PATCH v2] tools/python: pass more -rpath-link options to ld Jan Beulich
  2020-11-04 17:19 ` Elliott Mitchell
@ 2020-11-04 17:22 ` Marek Marczykowski
  1 sibling, 0 replies; 4+ messages in thread
From: Marek Marczykowski @ 2020-11-04 17:22 UTC (permalink / raw)
  To: Jan Beulich; +Cc: xen-devel@lists.xenproject.org

[-- Attachment #1: Type: text/plain, Size: 3666 bytes --]

On Wed, Nov 04, 2020 at 03:57:49PM +0100, Jan Beulich wrote:
> With the split of libraries, I've observed a number of warnings from
> (old?) ld.
> 
> Instead of duplicating the additions in two places, introduce a setup.py
> make variable holding all the common parts of the invocations.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>

> ---
> v2: Pass on and use SHLIB_libxen*.
> ---
> It's unclear to me whether this is ld version dependent - the pattern
> of where I've seen such warnings doesn't suggest a clear version
> dependency.
> 
> Obviously (I think) the other similar variables (XEN_libxen*,
> CFLAGS_libxen*, etc) would better also be made use of to eliminate at
> least most of the PATH_* variables, but that's not the purpose of this
> change.
> 
> --- a/tools/python/Makefile
> +++ b/tools/python/Makefile
> @@ -8,19 +8,21 @@ PY_CFLAGS = $(CFLAGS) $(PY_NOOPT_CFLAGS)
>  PY_LDFLAGS = $(SHLIB_LDFLAGS) $(APPEND_LDFLAGS)
>  INSTALL_LOG = build/installed_files.txt
>  
> +setup.py = CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" \
> +           SHLIB_libxenctrl="$(SHLIB_libxenctrl)" \
> +           SHLIB_libxenguest="$(SHLIB_libxenguest)" \
> +           SHLIB_libxenstore="$(SHLIB_libxenstore)" \
> +           $(PYTHON) setup.py
> +
>  .PHONY: build
>  build:
> -	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build
> +	$(setup.py) build
>  
>  .PHONY: install
>  install:
>  	$(INSTALL_DIR) $(DESTDIR)$(LIBEXEC_BIN)
> -
> -	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" \
> -		LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py install \
> -		--record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
> +	$(setup.py) install --record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
>  		--root="$(DESTDIR)" --force
> -
>  	$(INSTALL_PYTHON_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
>  	$(INSTALL_PYTHON_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)
>  
> --- a/tools/python/setup.py
> +++ b/tools/python/setup.py
> @@ -4,6 +4,10 @@ import os, sys
>  
>  XEN_ROOT = "../.."
>  
> +SHLIB_libxenctrl = os.environ['SHLIB_libxenctrl'].split()
> +SHLIB_libxenguest = os.environ['SHLIB_libxenguest'].split()
> +SHLIB_libxenstore = os.environ['SHLIB_libxenstore'].split()
> +
>  extra_compile_args  = [ "-fno-strict-aliasing", "-Werror" ]
>  
>  PATH_XEN      = XEN_ROOT + "/tools/include"
> @@ -24,7 +28,7 @@ xc = Extension("xc",
>                 library_dirs       = [ PATH_LIBXENCTRL, PATH_LIBXENGUEST ],
>                 libraries          = [ "xenctrl", "xenguest" ],
>                 depends            = [ PATH_LIBXENCTRL + "/libxenctrl.so", PATH_LIBXENGUEST + "/libxenguest.so" ],
> -               extra_link_args    = [ "-Wl,-rpath-link="+PATH_LIBXENTOOLLOG ],
> +               extra_link_args    = SHLIB_libxenctrl + SHLIB_libxenguest,
>                 sources            = [ "xen/lowlevel/xc/xc.c" ])
>  
>  xs = Extension("xs",
> @@ -33,6 +37,7 @@ xs = Extension("xs",
>                 library_dirs       = [ PATH_XENSTORE ],
>                 libraries          = [ "xenstore" ],
>                 depends            = [ PATH_XENSTORE + "/libxenstore.so" ],
> +               extra_link_args    = SHLIB_libxenstore,
>                 sources            = [ "xen/lowlevel/xs/xs.c" ])
>  
>  plat = os.uname()[0]

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH v2] tools/python: pass more -rpath-link options to ld
  2020-11-04 17:19 ` Elliott Mitchell
@ 2020-11-05  8:27   ` Jan Beulich
  0 siblings, 0 replies; 4+ messages in thread
From: Jan Beulich @ 2020-11-05  8:27 UTC (permalink / raw)
  To: Elliott Mitchell; +Cc: xen-devel@lists.xenproject.org, Marek Marczykowski

On 04.11.2020 18:19, Elliott Mitchell wrote:
> On Wed, Nov 04, 2020 at 03:57:49PM +0100, Jan Beulich wrote:
>> --- a/tools/python/Makefile
>> +++ b/tools/python/Makefile
>> @@ -8,19 +8,21 @@ PY_CFLAGS = $(CFLAGS) $(PY_NOOPT_CFLAGS)
>>  PY_LDFLAGS = $(SHLIB_LDFLAGS) $(APPEND_LDFLAGS)
>>  INSTALL_LOG = build/installed_files.txt
>>  
>> +setup.py = CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" \
>> +           SHLIB_libxenctrl="$(SHLIB_libxenctrl)" \
>> +           SHLIB_libxenguest="$(SHLIB_libxenguest)" \
>> +           SHLIB_libxenstore="$(SHLIB_libxenstore)" \
>> +           $(PYTHON) setup.py
>> +
>>  .PHONY: build
>>  build:
>> -	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build
>> +	$(setup.py) build
>>  
>>  .PHONY: install
>>  install:
>>  	$(INSTALL_DIR) $(DESTDIR)$(LIBEXEC_BIN)
>> -
>> -	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDSHARED="$(CC)" \
>> -		LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py install \
>> -		--record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
>> +	$(setup.py) install --record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
>>  		--root="$(DESTDIR)" --force
>> -
>>  	$(INSTALL_PYTHON_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
>>  	$(INSTALL_PYTHON_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)
> 
> Shouldn't similar work of moving all the environment variable settings to
> a $(setup.py) variable be done for tools/pygrub/Makefile?
> 
> tools/python/Makefile and tools/pygrub/Makefile are presently quite
> similar and keeping them similar seems a Good Idea(tm).

The only dependency there is libfsimage - I don't even know whether
the same approach can be used there. If it can, I'd say: Likely, but
I've not observed a similar problem with pygrub, and it's only the
build problem I'm after here, sorry. As said in the post-commit-
message remark, I think there's more consolidation to be done here,
too, and I think it's at that point when pygrub, as applicable,
should also be brought in sync.

Jan


^ permalink raw reply	[flat|nested] 4+ messages in thread

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2020-11-04 14:57 [PATCH v2] tools/python: pass more -rpath-link options to ld Jan Beulich
2020-11-04 17:19 ` Elliott Mitchell
2020-11-05  8:27   ` Jan Beulich
2020-11-04 17:22 ` Marek Marczykowski

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