postgres

Commit Graph

Author	SHA1	Message	Date
Tom Lane	dddfc4cb2e	Prevent accidental linking of system-supplied copies of libpq.so etc. We were being careless in some places about the order of -L switches in link command lines, such that -L switches referring to external directories could come before those referring to directories within the build tree. This made it possible to accidentally link a system-supplied library, for example /usr/lib/libpq.so, in place of the one built in the build tree. Hilarity ensued, the more so the older the system-supplied library is. To fix, break LDFLAGS into two parts, a sub-variable LDFLAGS_INTERNAL and the main LDFLAGS variable, both of which are "recursively expanded" so that they can be incrementally adjusted by different makefiles. Establish a policy that -L switches for directories in the build tree must always be added to LDFLAGS_INTERNAL, while -L switches for external directories must always be added to LDFLAGS. This is sufficient to ensure a safe search order. For simplicity, we typically also put -l switches for the respective libraries into those same variables. (Traditional make usage would have us put -l switches into LIBS, but cleaning that up is a project for another day, as there's no clear need for it.) This turns out to also require separating SHLIB_LINK into two variables, SHLIB_LINK and SHLIB_LINK_INTERNAL, with a similar rule about which switches go into which variable. And likewise for PG_LIBS. Although this change might appear to affect external users of pgxs.mk, I think it doesn't; they shouldn't have any need to touch the _INTERNAL variables. In passing, tweak src/common/Makefile so that the value of CPPFLAGS recorded in pg_config lacks "-DFRONTEND" and the recorded value of LDFLAGS lacks "-L../../../src/common". Both of those things are mistakes, apparently introduced during prior code rearrangements, as old versions of pg_config don't print them. In general we don't want anything that's specific to the src/common subdirectory to appear in those outputs. This is certainly a bug fix, but in view of the lack of field complaints, I'm unsure whether it's worth the risk of back-patching. In any case it seems wise to see what the buildfarm makes of it first. Discussion: https://postgr.es/m/25214.1522604295@sss.pgh.pa.us	7 years ago
Peter Eisentraut	341e166180	Transforms for jsonb to PL/Perl Add a new contrib module jsonb_plperl that provides a transform between jsonb and PL/Perl. jsonb values are converted to appropriate Perl types such as arrays and hashes, and vice versa. Author: Anthony Bykov <a.bykov@postgrespro.ru> Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com> Reviewed-by: Aleksander Alekseev <a.alekseev@postgrespro.ru> Reviewed-by: Nikita Glukhov <n.gluhov@postgrespro.ru>	7 years ago
Tom Lane	3c163a7fc7	PL/Perl portability fix: absorb relevant -D switches from Perl. The Perl documentation is very clear that stuff calling libperl should be built with the compiler switches shown by Perl's $Config{ccflags}. We'd been ignoring that up to now, and mostly getting away with it, but recent Perl versions contain ABI compatibility cross-checks that fail on some builds because of this omission. In particular the sizeof(PerlInterpreter) can come out different due to some fields being added or removed; which means we have a live ABI hazard that we'd better fix rather than continuing to sweep it under the rug. However, it still seems like a bad idea to just absorb $Config{ccflags} verbatim. In some environments Perl was built with a different compiler that doesn't even use the same switch syntax. -D switch syntax is pretty universal though, and absorbing Perl's -D switches really ought to be enough to fix the problem. Furthermore, Perl likes to inject stuff like -D_LARGEFILE_SOURCE and -D_FILE_OFFSET_BITS=64 into $Config{ccflags}, which affect libc ABIs on platforms where they're relevant. Adopting those seems dangerous too. It's unclear whether a build wherein Perl and Postgres have different ideas of sizeof(off_t) etc would work, or whether anyone would care about making it work. But it's dead certain that having different stdio ABIs in core Postgres and PL/Perl will not work; we've seen that movie before. Therefore, let's also ignore -D switches for symbols beginning with underscore. The symbols that we actually need to import should be the ones mentioned in perl.h's PL_bincompat_options stanza, and none of those start with underscore, so this seems likely to work. (If it turns out not to work everywhere, we could consider intersecting the symbols mentioned in PL_bincompat_options with the -D switches. But that will be much more complicated, so let's try this way first.) This will need to be back-patched, but first let's see what the buildfarm makes of it. Ashutosh Sharma, some adjustments by me Discussion: https://postgr.es/m/CANFyU97OVQ3+Mzfmt3MhuUm5NwPU=-FtbNH5Eb7nZL9ua8=rcA@mail.gmail.com	8 years ago
Noah Misch	acd73ad1a1	Code review for avoidance of direct cross-module links. Remove $(pkglibdir) from $(rpathdir), since commits `d51924be88` and `eda04886c1` removed direct linkage to objects stored there. Users are unlikely to notice the difference. Accompany every $(python_libspec) with $(python_additional_libs); this doesn't fix a demonstrated bug, but it might do so on rare Python configurations. With these changes, AIX ceases to be a special case.	9 years ago
Tom Lane	eda04886c1	Avoid direct cross-module links in hstore_plperl and ltree_plpython, too. Just turning the crank on the project started in commit `d51924be8`. These cases turn out to be exact subsets of the boilerplate needed for hstore_plpython. Discussion: <2652.1475512158@sss.pgh.pa.us>	9 years ago
Tom Lane	3343ea9e8e	Sort $(wildcard) output where needed for reproducible build output. The order of inclusion of .o files makes a difference in linker output; not a functional difference, but still a bitwise difference, which annoys some packagers who would like reproducible builds. Report and patch by Christoph Berg	10 years ago
Andrew Dunstan	00eff86cb8	Enable transforms modules to build and test on Cygwin. This still doesn't work correctly with Python 3, but I am committing this so we can get Cygwin buildfarm members building with Python 2.	10 years ago
Noah Misch	7193436744	AIX: Link TRANSFORM modules with their dependencies. The result closely resembles linking of these modules for the "win32" port. Augment the $(exports_file) header so the file is also usable as an import file. Unfortunately, relocating an AIX installation will now require adding $(pkglibdir) to LD_LIBRARY_PATH. Back-patch to 9.5, where the modules were introduced.	10 years ago
Andrew Dunstan	f802c6ddba	Enable transforms modules to build and run with Mingw builds. These modules were all missing essential Windows scaffolding, including resources files and descriptions, and links to the relevant library import files. This latter item means that the modules can't be built with pgxs on Windows, as we don't install the import files. If we ever decide to install them this restriction could probably be removed. Also, as with plperl we need to make sure that perl's CORE directory is last on the include list, as on Windows it appears to contain some headers with names that clash with names of some headers we include.	10 years ago
Peter Eisentraut	e30a864963	hstore_plperl: Move port-specific parts to later in the makefile PORTNAME isn't set until the global makefiles have been included.	10 years ago
Peter Eisentraut	0fd764647a	Make hstore_plperl's build even more like plperl's Combine the two places that set CPPFLAGS into one. Also, some settings should be restricted to Windows only. More precisely, -Wno-comment is a GCC-only option, but Windows in a makefile implies GCC at the moment. Also, since -Wno-comment is more properly a preprocessor option, move it to CPPFLAGS to simplify things a bit.	10 years ago
Andrew Dunstan	77477e745b	Make hstore_plperl's build more like plperl's This involves moving perl's CORE library to the end of the include list, and adding other compilation settings that plperl uses. This won't completely fix the breakage currently being seen by gcc builds on Windows, but it will let the build get further, and should be wholly benign, if not beneficial, on *nix.	10 years ago
Peter Eisentraut	f95425478a	Fix hstore_plperl regression tests on some platforms On some platforms, plperl and plperlu cannot be loaded at the same time. So split the test into two separate test files.	10 years ago
Peter Eisentraut	cac7658205	Add transforms feature This provides a mechanism for specifying conversions between SQL data types and procedural languages. As examples, there are transforms for hstore and ltree for PL/Perl and PL/Python. reviews by Pavel Stěhule and Andres Freund	10 years ago

2 Commits (dddfc4cb2edcfa5497f5d50190a7fb046c51da16)