two fixes for local.conf.sample and local.conf.sample.extended

Fixed do_configure error:

ERROR: User requested feature sdl
configure was not able to find it.
Install SDL devel

This is error from log.do_configure, and if we check config.log, the error is:

sysroots/x86_64-linux/usr/lib/libXext.so.6: undefined reference to `_XEatDataWords'

The _XEatDataWords is provided by libX11.so, the dependencies are:

qemu-native -> sdl(from the host) -> libXext.so(maybe host or native) -> libX11.so (maybe host or native)

We may meet the error if host's libX11.so doesn't provide _XEatDataWords, and native's libX11.so has been removed (for example, rebuild).

Another way to fix is: let qemu-native depend on libxext-naive when sdl is enabled, for example:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl libxext-native,"

But this might be incorrect since target sdl or qemu may not require X11, so set:

DEPENDS_pn-qemu-native += "libxext-naive"

in local.conf.sample to fix problem.

Signed-off-by Robert Yang <[email protected]>

---
 meta-yocto/conf/local.conf.sample |    1 +
 1 file changed, 1 insertion(+)

meta-yocto/conf/local.conf.sample +0 -0

index bcb0864..742eb1a 100644

meta-yocto/conf/local.conf.sample +0 -0

 PACKAGECONFIG_pn-nativesdk-qemu = "sdl"
 ASSUME_PROVIDED += "libsdl-native"
 

Signature · 7 lines

1.7.9.5

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Quoted 34 lines · Robert Yang

Fixed do_configure error:

ERROR: User requested feature sdl
configure was not able to find it.
Install SDL devel

This is error from log.do_configure, and if we check config.log, the error is:

sysroots/x86_64-linux/usr/lib/libXext.so.6: undefined reference to `_XEatDataWords'

The _XEatDataWords is provided by libX11.so, the dependencies are:

qemu-native -> sdl(from the host) -> libXext.so(maybe host or native) -> libX11.so (maybe host or native)

We may meet the error if host's libX11.so doesn't provide _XEatDataWords, and native's libX11.so has been removed (for example, rebuild).

Another way to fix is: let qemu-native depend on libxext-naive when sdl is enabled, for example:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl libxext-native,"

But this might be incorrect since target sdl or qemu may not require X11, so set:

DEPENDS_pn-qemu-native += "libxext-naive"

in local.conf.sample to fix problem.

Signed-off-by Robert Yang <[email protected]>

---
  meta-yocto/conf/local.conf.sample |    1 +
  1 file changed, 1 insertion(+)

meta-yocto/conf/local.conf.sample BB_DISKMON_DIRS = "\ · line 246

Quoted 9 lines

meta-yocto/conf/local.conf.sample +1 -0

index bcb0864..742eb1a 100644
@@ -243,6 +243,7 @@ BB_DISKMON_DIRS = "\
  # seen. The two lines below enable the SDL backend too. This assumes there is a
  # libsdl library available on your build system.
  PACKAGECONFIG_pn-qemu-native = "sdl"
+DEPENDS_pn-qemu-native += "libxext-naive"

Doesn't this belong in qemu-native's PACKAGECONFIG definition for sdl?

Quoted 12 lines

meta-yocto/conf/local.conf.sample +0 -1

  PACKAGECONFIG_pn-nativesdk-qemu = "sdl"
  ASSUME_PROVIDED += "libsdl-native"
 
--

1.7.9.5

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Quoted 47 lines · Martin Jansa

Quoted 46 lines · Robert Yang

Fixed do_configure error:

ERROR: User requested feature sdl

configure was not able to find it.
Install SDL devel

This is error from log.do_configure, and if we check config.log, the error is:

sysroots/x86_64-linux/usr/lib/libXext.so.6: undefined reference to `_XEatDataWords'

The _XEatDataWords is provided by libX11.so, the dependencies are:

qemu-native -> sdl(from the host) -> libXext.so(maybe host or native) -> libX11.so (maybe host or native)

We may meet the error if host's libX11.so doesn't provide _XEatDataWords, and native's libX11.so has been removed (for example, rebuild).

Another way to fix is: let qemu-native depend on libxext-naive when sdl is
enabled, for example:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl libxext-native,"

But this might be incorrect since target sdl or qemu may not require X11, so set:

DEPENDS_pn-qemu-native += "libxext-naive"

in local.conf.sample to fix problem.

Signed-off-by Robert Yang <[email protected]>

---

  meta-yocto/conf/local.conf.sample |    1 +
  1 file changed, 1 insertion(+)

(quoted diff) +0 -0

b/meta-yocto/conf/local.conf.sample index bcb0864..742eb1a 100644

meta-yocto/conf/local.conf.sample +0 -0

@@ -243,6 +243,7 @@ BB_DISKMON_DIRS = "\
 

Quoted 7 lines

meta-yocto/conf/local.conf.sample BB_DISKMON_DIRS = "\ · line 248

Quoted 5 lines

meta-yocto/conf/local.conf.sample +1 -0

  # seen. The two lines below enable the SDL backend too. This assumes
  there is a # libsdl library available on your build system.
  PACKAGECONFIG_pn-qemu-native = "sdl"
 
+DEPENDS_pn-qemu-native += "libxext-naive"

Doesn't this belong in qemu-native's PACKAGECONFIG definition for sdl?

Yes, but I don't know how to do it, what I know is:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl libxext,"

That would affect the target qemu, too, for example, when the user defines:

PACKAGECONFIG = "sdl" for target qemu, then the depends would be:

"libsdl libxext"

But the target sdl or qemu may not require X11.

Do you know how to define it for qemu-native only, please ?

Quoted 68 lines · On Tuesday 22 July 2014 19:37:00 Robert Yang wrote:

Quoted 47 lines · Martin Jansa

Quoted 46 lines · Robert Yang

Fixed do_configure error:

ERROR: User requested feature sdl

configure was not able to find it.
Install SDL devel

This is error from log.do_configure, and if we check config.log, the error is:

sysroots/x86_64-linux/usr/lib/libXext.so.6: undefined reference to `_XEatDataWords'

The _XEatDataWords is provided by libX11.so, the dependencies are:

qemu-native -> sdl(from the host) -> libXext.so(maybe host or native) -> libX11.so (maybe host or native)

We may meet the error if host's libX11.so doesn't provide _XEatDataWords, and native's libX11.so has been removed (for example, rebuild).

Another way to fix is: let qemu-native depend on libxext-naive when sdl is
enabled, for example:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl libxext-native,"

But this might be incorrect since target sdl or qemu may not require X11, so set:

DEPENDS_pn-qemu-native += "libxext-naive"

in local.conf.sample to fix problem.

Signed-off-by Robert Yang <[email protected]>

---

   meta-yocto/conf/local.conf.sample |    1 +
   1 file changed, 1 insertion(+)

(quoted diff) +0 -0

b/meta-yocto/conf/local.conf.sample index bcb0864..742eb1a 100644

meta-yocto/conf/local.conf.sample +0 -0

@@ -243,6 +243,7 @@ BB_DISKMON_DIRS = "\
 

Quoted 7 lines

meta-yocto/conf/local.conf.sample BB_DISKMON_DIRS = "\ · line 248

Quoted 5 lines

meta-yocto/conf/local.conf.sample +1 -0

   # seen. The two lines below enable the SDL backend too. This assumes
   there is a # libsdl library available on your build system.
   PACKAGECONFIG_pn-qemu-native = "sdl"
 
+DEPENDS_pn-qemu-native += "libxext-naive"

Doesn't this belong in qemu-native's PACKAGECONFIG definition for sdl?

Yes, but I don't know how to do it, what I know is:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl libxext,"

That would affect the target qemu, too, for example, when the user defines:

PACKAGECONFIG = "sdl" for target qemu, then the depends would be:

"libsdl libxext"

But the target sdl or qemu may not require X11.

Quoted 1 line

Do you know how to define it for qemu-native only, please ?

Surely something like this would work:

PACKAGECONFIG[sdl] = "--enable-sdl,--disable-sdl,libsdl ${NATIVEDEPS}," NATIVEDEPS = ""
NATIVEDEPS_class-native = "libxext-native"

Cheers,
Paul

sysroots/x86_64-linux/usr/lib/libXext.so.6: undefined reference to `_XEatDataWords'

Quoted 1 line · Robert Yang

sysroots/x86_64-linux/usr/lib/libXext.so.6: undefined reference to `_XEatDataWords'

Context: that function was added to libX11 1.6, and numerous other client libraries started using it to avoid security problems. Older hosts won't have it, but they also won't have libraries that are using it. So as far as I can tell the only way of replicating this is to have a sysroot which contains libxext but not libx11. Considering libxext depends on libx11 that's not very likely.

What's your actual replication method?

Ross

The link route is:

qemu-native's do_configure sdl checking:
/usr/lib/x86_64-linux-gnu/libSDL.so -->
<sysroots>/x86_64-linux/usr/lib/libXext.so.6 -->
/usr/lib/x86_64-linux-gnu/libX11.so

So it is:
host sdl -> sysroot libXext.so.6 -> host X11.so

qemu-native doesn't depend on libxext-native, so the error would happen if the libx11-native is being rebuilding and the host's libX11.so doesn't have _XEatDataWords.

Manually reproduce on Ubuntu 12.04 x86_64:

$ bitbake qemu-native libx11-native libxext-native
$ bitbake qemu-native libx11-native -ccleansstate && bitbake qemu-native

Quoted 14 lines · Robert Yang

The link route is:

qemu-native's do_configure sdl checking:
/usr/lib/x86_64-linux-gnu/libSDL.so -->
<sysroots>/x86_64-linux/usr/lib/libXext.so.6 -->
/usr/lib/x86_64-linux-gnu/libX11.so

So it is:
host sdl -> sysroot libXext.so.6 -> host X11.so

qemu-native doesn't depend on libxext-native, so the error would happen if the libx11-native is being rebuilding and the host's libX11.so doesn't have _XEatDataWords.

Quoted 4 lines

Manually reproduce on Ubuntu 12.04 x86_64:

$ bitbake qemu-native libx11-native libxext-native
$ bitbake qemu-native libx11-native -ccleansstate && bitbake qemu-native

This is where I insert my moan that the sysroot needs to have locking and not modified during builds...

Maybe qemu-native should have a wrapper script that removes the sysroot from LD_LIBRARY_PATH? It's a native binary that doesn't need

anything in the sysroot, so let's stop it even looking there.

Ross