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Turns out that we're now specifying _LARGEFILE64_SOURCE in cflags by
default which can break the build of offsets, which #defined it
manually. Add #ifndef.
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Use the structure rather than a bunch of separate variables.
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The client doesn't have a good way to report performance info, so we
add one. Format is fairly naive; dump raw bits into a file at offsets
determined by PID, pick up previous data and add more to them so that
long builds won't end up wiping out data.
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Worked for trivial cases, but spuriously closed fd 0 and had
other issues. Separated implementations out.
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Some years back, there was a historical reason (lost to the mists of
time) for which we had problems if we allowed actual creation of fifos,
but so far as we know we don't expect any problems with them now,
and there's a bitbake change which would like to be able to use fifos
for logging, so let's try enabling them and see what happens.
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In the case where an "oldpath" is actually the data for an xattr
operation, don't truncate it. Trailing slashes should only be removed
from things which are actually filenames.
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There was supposed to be a check for filenames showing up
with a trailing slash when the file was not a directory. What
actually made it in was a check for a mismatch between "is
a directory" and "has trailing slash", which produced spurious
messages saying the path had a trailing slash whenever a
directory path did *not* have a trailing slash. But that's
valid and should not produce diagnostics. Let alone thousands
of diagnostics.
Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
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The (cd $prefix; pwd) only works when the prefix already exists.
Check for prefix existing before doing that.
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Having the same logic twice was sorta bugging me. Now the
function-like-macro is sorta bugging me, and I'll just let
it.
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This is derived in significant part from contributions to oe-core
by Peter A. Bigot. I reworked the path routine a bit to use an
already duplicated string instead of allocating copies of parts of
it.
The first issue was just that there was a missing antimagic() around
some of the path operations. The second is that we wanted to have
a way to provide a fallback password file which isn't the host's,
but which can be used in the case where the target filesystem hasn't
got a password yet, for bootstrapping purposes. (So there's a minimal
password file that just has root, basically.)
Also, I noticed a design flaw, which is that if you ended up
calling pseudo_pwd_lck_open() twice in a row, the second time
through, pseudo would first check whether it had a path name
for the file (it does), and thus not allocate one, then call
the close routine (which frees it and nulls the pointer), then
open a new one... and not have a file name, so the next attempt
to close it wouldn't unlink the file. This shouldn't ever
come up in real code, but it was bugging me.
Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
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It turns out that "a/" is equivalent to "a/.", and that in particular
it should fail when a is not a directory. Pseudo's been silently stripping
them and this breaks things. Attempt to fix that, lightly tested.
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Trying to track down problems which sometimes result in files showing
up as nameless files, producing clashes later. Looks like there were two
issues; one is we were creating links for files that we'd already
found by inode. The other is that rename was sending bogus LINK messages
in some cases. Also simplified the find_file_dev path to extract the
path as part of the initial operation, since there wasn't any case where
that wasn't being done immediately afterwards.
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So it turns out that the sanity checks should be skipped on did_unlink,
because otherwise if an inode gets reused for a different file type,
it'll get nuked. This is pretty rare, but appears to bite us occasionally
during debug stripping.
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It turns out that, in the fairly common case where the did-unlink stuff
has saved us from worse problems, pseudo produces probably-spurious
error messages about the path mismatch when the did-unlink shows up.
Change that into a debug message. Also fix a typo in a comment.
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XFS apparently has 64-bit inodes. Our inode data path was
*almost* 64-bit clean. This doesn't require a database format change
because sqlite3 doesn't distinguish, but it will probably
invalidate existing files.db things on XFS. But they were broken
anyway.
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The assumption that a host is either x86_64 or x86_32 does not
hold well on target systems.
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We don't want to pick up newer memcpy because pseudo sometimes has to
run host binaries even when built against a newer libc.
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More complicated, because we actually need to make com.apple stuff work
probably.
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The sqlite flags don't need to be present if they don't have
meaningful values. I think.
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strlen(array) isn't a constant expression, even though gcc can sometimes
figure it out at compile time.
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Also for lstat, but that probably never matters because in Linux
you will never actually call lstat without working really hard at
it, because you end up calling __lxstat anyway. (Was already
doing the right thing for Darwin.)
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So it turns out that if you fix a bug inside an #ifdef that hasn't
applied to anything in years, it doesn't actually fix the bug.
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Peter Seebach
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