This is for Yocto bug #4920. The NO32LIBS variable is intended to allow
the user to force the creation of a 32-bit libpseudo, for use with things
like prebuilt binary toolchains. Unfortunately, the tests for likely
compilability (stubs-32.h) were still present, so you would get silent
failures. And if you did cause it to try to build, the failures were not
particularly clearly explained.

So, we:
1. Emit at least a message during configuration saying we're only
building 64-bit, if we are.
2. Warn the user for at least one common case where we know builds
are likely to fail.
3. If NO32LIBS is 0, we try the compile for sure, and if it fails,
we've emitted at least some sort of message up near the top of the
compile output that tells you what might be wrong.

(From OE-Core master rev: 22548b3243dfa2dc9861b0f15530632b37812a8c)

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

pseudo 1.5's enable-force-async works great, unless you use a host
where, inexplicably, stat(2) reports inconsistent and changing values
for a file's size or times for some time unless a file has been fsynced,
in which case you might want a way to cause an fsync to work.

Also noticed that some recent changes never made it into the docs, so
I did a little cleanup there. And changed the way NDEBUG suppresses
pseudo's debug messages, so arguments to them with possible side
effects (like calls into functions in another translation unit) can be
omitted, which should drastically reduce computational time if anyone
ever uses NDEBUG.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

The pseudo 1.5 update is a moderately experimental set of changes
which ought to improve performance. With these changes, pseudo
uses an in-memory sqlite database which is lushed on exit,
the protocol is changed to reduce waiting for server responses,
and pseudo can suppress any and all fsync/fdatasync type operations.

This last feature is optional, and not on by default, so we need
to pass in an extra configure argument, but that argument wouldn't
be known to an older configure, so... Enter PSEUDO_EXTRA_OPTS which
is passed to configure, and which pseudo_1.5.bb sets by default to
"--enable-force-async". (I haven't added it in pseudo_git.bb, but
maybe it should be changed; I'm not quite as sure there.)

The justification for these changes is that, for most of the real-world
build cases I deal with, they produce a 25% or more reduction in the
build time of a project. This increases when a system is heavily
loaded.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

The 1.4.4 fix replaced possible double-prepending of chroot paths
with possible non-prepending of chroot paths. After significant
evaluation, have settled on a single prepending of the chroot
path as a workable compromise.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

The pseudo 1.4.2 linkat() implementation had a broken edge case
in which you could end up with chroot paths being doubled when
using plain link() calls instead of linkat() calls.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

This updates to pseudo 1.4.3. Changes:

1. A couple of minor tweaks to reduce difficulties using SDKs built
   on slightly more recent machines on older machines; specifically,
   avoiding getting @GLIBC_2.7 symbol references for sscanf(), fscanf(),
   and open2().
2. Revision of the logic determining the library directory to use for
   sqlite's library files.

The latter is a source of difficulty because it's come up a few times
that we may want pseudo to use lib64 for libpseudo.so, but bitbake's
usual setup would have libsqlite3.a in lib regardless of bit width.
Cleaned up previous design a bit by providing a distinct setting for
sqlite-lib, which defaults to the same library directory used for other
things. Adjusted build to use this new setting. (This ends up being
${baselib}; on targets, that might not be lib, but for native builds
it generally is, and for SDK builds it appears to do the right thing.)

Testing: Successful build of meta-toolchain for both 64-bit and 32-bit
SDKMACHINE, and builds with NO32LIBS = "0" also succeeded. Also builds
for multilib targets.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

The overrides virtclass-native and virtclass-nativesdk are deprecated,
which should be replaced by class-native and class-nativesdk.

[YOCTO #3297]

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

There were a number of cases where pseudo used plain old stat()
to get dev/inode data for files; on 32-bit hosts, this could fail
if the files were over 2GB, causing pseudo to prevent removing of
large files. This is fixed in 1.4.1.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

When NO32LIBS = 0, building 32-bit version of pseudo-native and
building on a 64-bit host -- if the build was triggered by a
dependency change on something pseudo uses, the build could fail
due to left over files from the previous build.  Fix this by
ensuring we run make distclean (and ignoring any failure codes) to
ensure we start over.

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

This update replaces the half-baked --arch logic with the use
of $CFLAGS to pick compiler flags, on the grounds that it makes
a lot more sense for the build system to pick flags than for
pseudo to try to guess what they should be; this should allow
pseudo to at least compile for targets, and possibly run on
them.

This doesn't solve the problem of guessing how to forcibly
build the 32-bit variant on hosts, because we really don't
have a general solution for that. There's no idiom for "given
this set of compiler flags and this architecture, what flags
would you use to request a 32-bit compile instead?" So we
basically ignore that for now. If someone comes along trying
to use the build system to build pseudo-native on a 64-bit
host that also supports 32-bit binaries and isn't x86, we
will revisit this.

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