Openembedded Core Discussions
 help / color / mirror / Atom feed
* [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24'
@ 2016-10-28  6:09 Enrico Jorns
  2016-10-28  6:36 ` [PATCH v2][krogoth] " Enrico Jorns
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Enrico Jorns @ 2016-10-28  6:09 UTC (permalink / raw)
  To: openembedded-core

This patch is required for krogoth, too in order to make it properly
work with glibc 2.24.

Signed-off-by: Enrico Jorns <ejo@pengutronix.de>

Below the message of the original commit:

There are issues with a change made to RTLD_NEXT behaviour in glibc 2.24
and that change was also backported to older glibc versions in some distros
like Fedora 23. This adds a workaround whilst the pseudo maintainer fixes
various issues properly.

(From OE-Core rev: 21c38a091c4a1917f62a942c4751b0fd11dce340)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 meta-jupiter                                       |  2 +-
 .../pseudo/pseudo-glibc-rtld-next-workaround.patch | 85 ++++++++++++++++++++++
 meta/recipes-devtools/pseudo/pseudo_1.7.5.bb       |  1 +
 3 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch

diff --git a/meta-jupiter b/meta-jupiter
index a1299a3..5a66c62 160000
--- a/meta-jupiter
+++ b/meta-jupiter
@@ -1 +1 @@
-Subproject commit a1299a3e711c93ed8a7eb652bdbacd83669263c6
+Subproject commit 5a66c628800824585208d0130ee6b731c7e95edd
diff --git a/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch b/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
new file mode 100644
index 0000000..6710734
--- /dev/null
+++ b/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
@@ -0,0 +1,85 @@
+We started seeing:
+
+No real function for mknod: /home/paul/poky_sdk/tmp/sysroots/x86_64-
+linux/usr/bin/../lib/pseudo/lib64/libpseudo.so: undefined symbol: mknod
+No real function for mknodat: /home/paul/poky_sdk/tmp/sysroots/x86_64-
+linux/usr/bin/../lib/pseudo/lib64/libpseudo.so: undefined symbol: mknodat
+
+In glibc 2.24 they've merged:
+
+https://sourceware.org/git/?p=glibc.git;a=commit;h=7d45c163d00c88d5875a112343c4ea3e61349e6b
+related to bugzilla entry:
+https://sourceware.org/bugzilla/show_bug.cgi?id=19509
+
+which means that the behaviour of RTLD_NEXT is slightly different.
+As far as I can tell, mknod has not been present in glibc for a while. 
+To quote stat.h:
+
+/* To allow the `struct stat' structure and the file type `mode_t'
+   bits to vary without changing shared library major version number,
+   the `stat' family of functions and `mknod' are in fact inline
+   wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod',
+   which all take a leading version-number argument designating the
+   data structure and bits used.  <bits/stat.h> defines _STAT_VER with
+   the version number corresponding to `struct stat' as defined in
+   that file; and _MKNOD_VER with the version number corresponding to
+   the S_IF* macros defined therein.  It is arranged that when not
+   inlined these function are always statically linked; that way a
+   dynamically-linked executable always encodes the version number
+   corresponding to the data structures it uses, so the `x' functions
+   in the shared library can adapt without needing to recompile all
+   callers.  */
+
+so I suspect mknod has not existed for a while, if ever and what we
+were finding, who knows. Everying in the system links against _xmknod
+which we have a separate wrapper for.
+
+Anyhow, ignoring that problem which hasn't caused a issue in the past, 
+the RTLD_NEXT change causes messages to be printed to stdout which causes 
+carnage if for example the packaging code is expecting a list of packages:
+
+WARNING: core-image-minimal-1.0-r0 do_rootfs: No not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: real not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: function not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: for not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: mknod: not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+[etc]
+
+This bug will affect:
+* any distro using glibc 2.24
+* any system using a uninative tarball for glibc 2.24
+* any system which took a backport for the fix which was merged into
+  the 2.23 branch for a while before it was reverted (Fedora 23 had this)
+
+The easiest thing to do is to ignore the problem and disable the diag
+message which masks the problem with no ill effects.
+
+As Peter notes, there are a few issues here:
+
+* the fact there is no mknod symbol
+* the fact an error here isn't fatal
+* the #ifdef/#else looks suspect
+* handle RTLD_NEXT chaining properly (need more libs?)
+
+which he'll work on upstream and hopefully have fixed in a new version.
+
+Upstream-Status: Submitted [Peter is aware of the issue]
+
+RP 2016/5/18
+
+Index: pseudo-1.7.5/pseudo_wrappers.c
+===================================================================
+--- pseudo-1.7.5.orig/pseudo_wrappers.c
++++ pseudo-1.7.5/pseudo_wrappers.c
+@@ -146,9 +146,9 @@ pseudo_init_one_wrapper(pseudo_function
+ 			return;
+ 		}
+ #else
+-		if (e != NULL) {
++		/*if (e != NULL) {
+ 			pseudo_diag("No real function for %s: %s\n", func->name, e);
+-		}
++		}*/
+ #endif
+ 	}
+ }
diff --git a/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb b/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
index d90e644..38e6f4d 100644
--- a/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
+++ b/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
@@ -7,6 +7,7 @@ SRC_URI = " \
     file://fallback-group \
     file://moreretries.patch \
     file://handle-remove-xattr.patch \
+    file://pseudo-glibc-rtld-next-workaround.patch \
 "
 
 SRC_URI[md5sum] = "c10209938f03128d0c193f041ff3596d"
-- 
2.9.3



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

* [PATCH v2][krogoth] pseudo: backport 'Work around issues with glibc 2.24'
  2016-10-28  6:09 [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24' Enrico Jorns
@ 2016-10-28  6:36 ` Enrico Jorns
  2016-10-28 13:54 ` [PATCH][krogoth] " Seebs
  2016-11-01 14:48 ` akuster808
  2 siblings, 0 replies; 4+ messages in thread
From: Enrico Jorns @ 2016-10-28  6:36 UTC (permalink / raw)
  To: openembedded-core; +Cc: Enrico Jorns

This patch is required for krogoth, too in order to make it properly
work with glibc 2.24.

Signed-off-by: Enrico Jorns <ejo@pengutronix.de>

Below the message of the original commit:

There are issues with a change made to RTLD_NEXT behaviour in glibc 2.24
and that change was also backported to older glibc versions in some distros
like Fedora 23. This adds a workaround whilst the pseudo maintainer fixes
various issues properly.

(From OE-Core rev: 21c38a091c4a1917f62a942c4751b0fd11dce340)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---

Cleaned-up version of the former patch.

 .../pseudo/pseudo-glibc-rtld-next-workaround.patch | 85 ++++++++++++++++++++++
 meta/recipes-devtools/pseudo/pseudo_1.7.5.bb       |  1 +
 2 files changed, 86 insertions(+)
 create mode 100644 meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch

diff --git a/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch b/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
new file mode 100644
index 0000000..6710734
--- /dev/null
+++ b/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
@@ -0,0 +1,85 @@
+We started seeing:
+
+No real function for mknod: /home/paul/poky_sdk/tmp/sysroots/x86_64-
+linux/usr/bin/../lib/pseudo/lib64/libpseudo.so: undefined symbol: mknod
+No real function for mknodat: /home/paul/poky_sdk/tmp/sysroots/x86_64-
+linux/usr/bin/../lib/pseudo/lib64/libpseudo.so: undefined symbol: mknodat
+
+In glibc 2.24 they've merged:
+
+https://sourceware.org/git/?p=glibc.git;a=commit;h=7d45c163d00c88d5875a112343c4ea3e61349e6b
+related to bugzilla entry:
+https://sourceware.org/bugzilla/show_bug.cgi?id=19509
+
+which means that the behaviour of RTLD_NEXT is slightly different.
+As far as I can tell, mknod has not been present in glibc for a while. 
+To quote stat.h:
+
+/* To allow the `struct stat' structure and the file type `mode_t'
+   bits to vary without changing shared library major version number,
+   the `stat' family of functions and `mknod' are in fact inline
+   wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod',
+   which all take a leading version-number argument designating the
+   data structure and bits used.  <bits/stat.h> defines _STAT_VER with
+   the version number corresponding to `struct stat' as defined in
+   that file; and _MKNOD_VER with the version number corresponding to
+   the S_IF* macros defined therein.  It is arranged that when not
+   inlined these function are always statically linked; that way a
+   dynamically-linked executable always encodes the version number
+   corresponding to the data structures it uses, so the `x' functions
+   in the shared library can adapt without needing to recompile all
+   callers.  */
+
+so I suspect mknod has not existed for a while, if ever and what we
+were finding, who knows. Everying in the system links against _xmknod
+which we have a separate wrapper for.
+
+Anyhow, ignoring that problem which hasn't caused a issue in the past, 
+the RTLD_NEXT change causes messages to be printed to stdout which causes 
+carnage if for example the packaging code is expecting a list of packages:
+
+WARNING: core-image-minimal-1.0-r0 do_rootfs: No not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: real not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: function not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: for not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+WARNING: core-image-minimal-1.0-r0 do_rootfs: mknod: not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
+[etc]
+
+This bug will affect:
+* any distro using glibc 2.24
+* any system using a uninative tarball for glibc 2.24
+* any system which took a backport for the fix which was merged into
+  the 2.23 branch for a while before it was reverted (Fedora 23 had this)
+
+The easiest thing to do is to ignore the problem and disable the diag
+message which masks the problem with no ill effects.
+
+As Peter notes, there are a few issues here:
+
+* the fact there is no mknod symbol
+* the fact an error here isn't fatal
+* the #ifdef/#else looks suspect
+* handle RTLD_NEXT chaining properly (need more libs?)
+
+which he'll work on upstream and hopefully have fixed in a new version.
+
+Upstream-Status: Submitted [Peter is aware of the issue]
+
+RP 2016/5/18
+
+Index: pseudo-1.7.5/pseudo_wrappers.c
+===================================================================
+--- pseudo-1.7.5.orig/pseudo_wrappers.c
++++ pseudo-1.7.5/pseudo_wrappers.c
+@@ -146,9 +146,9 @@ pseudo_init_one_wrapper(pseudo_function
+ 			return;
+ 		}
+ #else
+-		if (e != NULL) {
++		/*if (e != NULL) {
+ 			pseudo_diag("No real function for %s: %s\n", func->name, e);
+-		}
++		}*/
+ #endif
+ 	}
+ }
diff --git a/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb b/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
index d90e644..38e6f4d 100644
--- a/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
+++ b/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
@@ -7,6 +7,7 @@ SRC_URI = " \
     file://fallback-group \
     file://moreretries.patch \
     file://handle-remove-xattr.patch \
+    file://pseudo-glibc-rtld-next-workaround.patch \
 "
 
 SRC_URI[md5sum] = "c10209938f03128d0c193f041ff3596d"
-- 
2.9.3



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

* Re: [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24'
  2016-10-28  6:09 [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24' Enrico Jorns
  2016-10-28  6:36 ` [PATCH v2][krogoth] " Enrico Jorns
@ 2016-10-28 13:54 ` Seebs
  2016-11-01 14:48 ` akuster808
  2 siblings, 0 replies; 4+ messages in thread
From: Seebs @ 2016-10-28 13:54 UTC (permalink / raw)
  To: openembedded-core

On 28 Oct 2016, at 1:09, Enrico Jorns wrote:

> + #else
> +-		if (e != NULL) {
> ++		/*if (e != NULL) {
> + 			pseudo_diag("No real function for %s: %s\n", func->name, e);
> +-		}
> ++		}*/
> + #endif

Looking at upstream, I do have a fix for this apparently, which is to 
add
mknod/mknodat wrappers to ports/linux/mknodat.c, but there may be other 
things that
relies on (my memory's not online yet today), and this is a reasonable 
workaround
for now.

Historical note:
mknod and mknodat have wrappers because I still periodically maintain 
the OS X
port that was fervently demanded on a regular basis until about a week 
after I added
it, and OS X doesn't have the xmknod/xstat/etc thing.

-s


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

* Re: [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24'
  2016-10-28  6:09 [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24' Enrico Jorns
  2016-10-28  6:36 ` [PATCH v2][krogoth] " Enrico Jorns
  2016-10-28 13:54 ` [PATCH][krogoth] " Seebs
@ 2016-11-01 14:48 ` akuster808
  2 siblings, 0 replies; 4+ messages in thread
From: akuster808 @ 2016-11-01 14:48 UTC (permalink / raw)
  To: Enrico Jorns, openembedded-core

Enrico


On 10/27/2016 11:09 PM, Enrico Jorns wrote:
> This patch is required for krogoth, too in order to make it properly
> work with glibc 2.24.
>
> Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
>
> Below the message of the original commit:
>
> There are issues with a change made to RTLD_NEXT behaviour in glibc 2.24
> and that change was also backported to older glibc versions in some distros
> like Fedora 23. This adds a workaround whilst the pseudo maintainer fixes
> various issues properly.
>
> (From OE-Core rev: 21c38a091c4a1917f62a942c4751b0fd11dce340)

Merged to staging,

Thanks,
Armin
>
> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
> ---
>   meta-jupiter                                       |  2 +-
>   .../pseudo/pseudo-glibc-rtld-next-workaround.patch | 85 ++++++++++++++++++++++
>   meta/recipes-devtools/pseudo/pseudo_1.7.5.bb       |  1 +
>   3 files changed, 87 insertions(+), 1 deletion(-)
>   create mode 100644 meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
>
> diff --git a/meta-jupiter b/meta-jupiter
> index a1299a3..5a66c62 160000
> --- a/meta-jupiter
> +++ b/meta-jupiter
> @@ -1 +1 @@
> -Subproject commit a1299a3e711c93ed8a7eb652bdbacd83669263c6
> +Subproject commit 5a66c628800824585208d0130ee6b731c7e95edd
> diff --git a/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch b/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
> new file mode 100644
> index 0000000..6710734
> --- /dev/null
> +++ b/meta/recipes-devtools/pseudo/pseudo/pseudo-glibc-rtld-next-workaround.patch
> @@ -0,0 +1,85 @@
> +We started seeing:
> +
> +No real function for mknod: /home/paul/poky_sdk/tmp/sysroots/x86_64-
> +linux/usr/bin/../lib/pseudo/lib64/libpseudo.so: undefined symbol: mknod
> +No real function for mknodat: /home/paul/poky_sdk/tmp/sysroots/x86_64-
> +linux/usr/bin/../lib/pseudo/lib64/libpseudo.so: undefined symbol: mknodat
> +
> +In glibc 2.24 they've merged:
> +
> +https://sourceware.org/git/?p=glibc.git;a=commit;h=7d45c163d00c88d5875a112343c4ea3e61349e6b
> +related to bugzilla entry:
> +https://sourceware.org/bugzilla/show_bug.cgi?id=19509
> +
> +which means that the behaviour of RTLD_NEXT is slightly different.
> +As far as I can tell, mknod has not been present in glibc for a while.
> +To quote stat.h:
> +
> +/* To allow the `struct stat' structure and the file type `mode_t'
> +   bits to vary without changing shared library major version number,
> +   the `stat' family of functions and `mknod' are in fact inline
> +   wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod',
> +   which all take a leading version-number argument designating the
> +   data structure and bits used.  <bits/stat.h> defines _STAT_VER with
> +   the version number corresponding to `struct stat' as defined in
> +   that file; and _MKNOD_VER with the version number corresponding to
> +   the S_IF* macros defined therein.  It is arranged that when not
> +   inlined these function are always statically linked; that way a
> +   dynamically-linked executable always encodes the version number
> +   corresponding to the data structures it uses, so the `x' functions
> +   in the shared library can adapt without needing to recompile all
> +   callers.  */
> +
> +so I suspect mknod has not existed for a while, if ever and what we
> +were finding, who knows. Everying in the system links against _xmknod
> +which we have a separate wrapper for.
> +
> +Anyhow, ignoring that problem which hasn't caused a issue in the past,
> +the RTLD_NEXT change causes messages to be printed to stdout which causes
> +carnage if for example the packaging code is expecting a list of packages:
> +
> +WARNING: core-image-minimal-1.0-r0 do_rootfs: No not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
> +WARNING: core-image-minimal-1.0-r0 do_rootfs: real not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
> +WARNING: core-image-minimal-1.0-r0 do_rootfs: function not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
> +WARNING: core-image-minimal-1.0-r0 do_rootfs: for not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
> +WARNING: core-image-minimal-1.0-r0 do_rootfs: mknod: not found in the base feeds (qemux86_64 core2-64 x86_64 noarch any all).
> +[etc]
> +
> +This bug will affect:
> +* any distro using glibc 2.24
> +* any system using a uninative tarball for glibc 2.24
> +* any system which took a backport for the fix which was merged into
> +  the 2.23 branch for a while before it was reverted (Fedora 23 had this)
> +
> +The easiest thing to do is to ignore the problem and disable the diag
> +message which masks the problem with no ill effects.
> +
> +As Peter notes, there are a few issues here:
> +
> +* the fact there is no mknod symbol
> +* the fact an error here isn't fatal
> +* the #ifdef/#else looks suspect
> +* handle RTLD_NEXT chaining properly (need more libs?)
> +
> +which he'll work on upstream and hopefully have fixed in a new version.
> +
> +Upstream-Status: Submitted [Peter is aware of the issue]
> +
> +RP 2016/5/18
> +
> +Index: pseudo-1.7.5/pseudo_wrappers.c
> +===================================================================
> +--- pseudo-1.7.5.orig/pseudo_wrappers.c
> ++++ pseudo-1.7.5/pseudo_wrappers.c
> +@@ -146,9 +146,9 @@ pseudo_init_one_wrapper(pseudo_function
> + 			return;
> + 		}
> + #else
> +-		if (e != NULL) {
> ++		/*if (e != NULL) {
> + 			pseudo_diag("No real function for %s: %s\n", func->name, e);
> +-		}
> ++		}*/
> + #endif
> + 	}
> + }
> diff --git a/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb b/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
> index d90e644..38e6f4d 100644
> --- a/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
> +++ b/meta/recipes-devtools/pseudo/pseudo_1.7.5.bb
> @@ -7,6 +7,7 @@ SRC_URI = " \
>       file://fallback-group \
>       file://moreretries.patch \
>       file://handle-remove-xattr.patch \
> +    file://pseudo-glibc-rtld-next-workaround.patch \
>   "
>   
>   SRC_URI[md5sum] = "c10209938f03128d0c193f041ff3596d"



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

end of thread, other threads:[~2016-11-01 14:48 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-10-28  6:09 [PATCH][krogoth] pseudo: backport 'Work around issues with glibc 2.24' Enrico Jorns
2016-10-28  6:36 ` [PATCH v2][krogoth] " Enrico Jorns
2016-10-28 13:54 ` [PATCH][krogoth] " Seebs
2016-11-01 14:48 ` akuster808

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox