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* Make build-many-glibcs.py flush stdout before execv.Joseph Myers2016-12-161-0/+1
| | | | | | | | | | | | When build-many-glibcs.py re-execs itself with execv, any buffered output on stdout may be lost (in particular, messages intended to go to a bot's log about the re-exec taking place). This patch makes it flush stdout before execv, similar to the flush before running a subprocess from the bot that is done to ensure output appears in the right order. * scripts/build-many-glibcs.py (Context.exec_self): Flush stdout before calling execv.
* Use Linux 4.9 (headers) in build-many-glibcs.py.Joseph Myers2016-12-141-1/+1
| | | | | | | | | | | | This patch updates build-many-glibcs.py to use Linux 4.9 for kernel headers unless another version is explicitly specified. Note that when a version changes like this you'll need to use --replace-sources when updating an existing checkout to tell build-many-glibcs.py it's OK to delete and replace the sources of a component for which the version used has changed. * scripts/build-many-glibcs.py (Context.checkout): Default Linux kernel version to 4.9.
* Make _REENTRANT and _THREAD_SAFE aliases for _POSIX_C_SOURCE=199506L.Zack Weinberg2016-12-081-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | For many years, the only effect of these macros has been to make unistd.h declare getlogin_r. _POSIX_C_SOURCE >= 199506L also causes this function to be declared. However, people who don't carefully read all the headers might be confused into thinking they need to define _REENTRANT for any threaded code (as was indeed the case a long time ago). Therefore, remove __USE_REENTRANT, and make _REENTRANT and _THREAD_SAFE into synonyms for _POSIX_C_SOURCE=199506L. This will only affect programs that don't select a higher conformance level some other way. For instance, -std=c89 -D_REENTRANT will see a change in visible declarations, but -std=c99 -D_POSIX_C_SOURCE=200809L -D_REENTRANT won't, and -D_REENTRANT all by itself also won't, because _DEFAULT_SOURCE implies _POSIX_C_SOURCE > 199506. * include/features.h: Remove __USE_REENTRANT. Treat _REENTRANT and _THREAD_SAFE the same as _POSIX_C_SOURCE=199506L, if a higher POSIX conformance level has not been selected by other macros. * NEWS, manual/creature.texi: Document this change. * posix/unistd.h, posix/bits/unistd.h: Don't check __USE_REENTRANT. * include/libc-symbols.h: Don't define _REENTRANT. * scripts/check-installed-headers.sh: Don't undefine _REENTRANT.
* Add pretty printers for the NPTL lock typesMartin Galvan2016-12-083-0/+543
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds pretty printers for the following NPTL types: - pthread_mutex_t - pthread_mutexattr_t - pthread_cond_t - pthread_condattr_t - pthread_rwlock_t - pthread_rwlockattr_t To load the pretty printers into your gdb session, do the following: python import sys sys.path.insert(0, '/path/to/glibc/build/nptl/pretty-printers') end source /path/to/glibc/source/pretty-printers/nptl-printers.py You can check which printers are registered and enabled by issuing the 'info pretty-printer' gdb command. Printers should trigger automatically when trying to print a variable of one of the types mentioned above. The printers are architecture-independent, and were tested on an AMD64 running Ubuntu 14.04 and an x86 VM running Fedora 24. In order to work, the printers need to know the values of various flags that are scattered throughout pthread.h and pthreadP.h as enums and #defines. Since replicating these constants in the printers file itself would create a maintenance burden, I wrote a script called gen-py-const.awk that Makerules uses to extract the constants. This script is pretty much the same as gen-as-const.awk, except it doesn't cast the constant values to 'long' and is thorougly documented. The constants need only to be enumerated in a .pysym file, which is then referenced by a Make variable called gen-py-const-headers. As for the install directory, I discussed this with Mike Frysinger and Siddhesh Poyarekar, and we agreed that it can be handled in a separate patch, and shouldn't block merging of this one. In addition, I've written a series of test cases for the pretty printers. Each lock type (mutex, condvar and rwlock) has two test programs, one for itself and other for its related 'attributes' object. Each test program in turn has a PExpect-based Python script that drives gdb and compares its output to the expected printer's. The tests run on the glibc host, which is assumed to have both gdb and PExpect; if either is absent the tests will fail with code 77 (UNSUPPORTED). For cross-testing you should use cross-test-ssh.sh as test-wrapper. I've tested the printers on both native builds and a cross build using a Beaglebone Black running Debian, with the build system's filesystem shared with the board through NFS. Finally, I've written a README that explains all this and more. * INSTALL: Regenerated. * Makeconfig: Add comments and whitespace to make the control flow clearer. (+link-printers-tests, +link-pie-printers-tests, CFLAGS-printers-tests, installed-rtld-LDFLAGS, built-rtld-LDFLAGS, link-libc-rpath, link-libc-tests-after-rpath-link, link-libc-printers-tests): New. (rtld-LDFLAGS, rtld-tests-LDFLAGS, link-libc-tests-rpath-link, link-libc-tests): Use the new variables as required. * Makerules ($(py-const)): New rule. generated: Add $(py-const). * README.pretty-printers: New file. * Rules (tests-printers-programs, tests-printers-out, py-env): New. (others): Depend on $(py-const). (tests): Depend on $(tests-printers-programs) or $(tests-printers-out), as required. Pass $(tests-printers) to merge-test-results.sh. * manual/install.texi: Add requirements for testing the pretty printers. * nptl/Makefile (gen-py-const-headers, pretty-printers, tests-printers, CFLAGS-test-mutexattr-printers.c CFLAGS-test-mutex-printers.c, CFLAGS-test-condattr-printers.c, CFLAGS-test-cond-printers.c, CFLAGS-test-rwlockattr-printers.c CFLAGS-test-rwlock-printers.c, tests-printers-libs): Define. * nptl/nptl-printers.py: New file. * nptl/nptl_lock_constants.pysym: Likewise. * nptl/test-cond-printers.c: Likewise. * nptl/test-cond-printers.py: Likewise. * nptl/test-condattr-printers.c: Likewise. * nptl/test-condattr-printers.py: Likewise. * nptl/test-mutex-printers.c: Likewise. * nptl/test-mutex-printers.py: Likewise. * nptl/test-mutexattr-printers.c: Likewise. * nptl/test-mutexattr-printers.py: Likewise. * nptl/test-rwlock-printers.c: Likewise. * nptl/test-rwlock-printers.py: Likewise. * nptl/test-rwlockattr-printers.c: Likewise. * nptl/test-rwlockattr-printers.py: Likewise. * scripts/gen-py-const.awk: Likewise. * scripts/test_printers_common.py: Likewise. * scripts/test_printers_exceptions.py: Likewise.
* Add build-many-glibcs.py option to strip installed shared libraries.Joseph Myers2016-12-071-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a --strip option to build-many-glibcs.py, to make it strip the installed shared libraries after installation. This is for convenience if you want to compare installed stripped shared libraries before and after a patch that was not meant to result in any code changes: you can run with this option, copy the install/glibcs directory, run again with the patch and compare the */lib* subdirectory contents. (It might make sense for the option to strip libraries in other directories, including stripping debug information from static libraries, with a view to making it possible for a no-generated-code-changes patch to result in completely identical install/glibcs directories, so simplifying comparison, though that may need other build determinism changes, e.g. to build deterministic .a files.) * scripts/build-many-glibcs.py (Context.__init__): Take strip argument. (Glibc.build_glibc): Strip installed shared libraries if requested. (get_parser): Add --strip option. (main): Update Context call.
* Make build-many-glibcs.py support running as a bot.Joseph Myers2016-12-011-11/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes build-many-glibcs.py support a "bot" action, for repeatedly running a checkout and build cycle. Two new configuration variables are used in bot-config.json. "delay" indicates the time to sleep after each bot-cycle round (regardless of whether that round actually ran any builds); "run" is a boolean, which is false if the bot should just exit (the point of this is that you can edit bot-config.json to set this to false to cause a running bot to exit cleanly between builds) and true if the bot should run. The bot does not exit if the bot-cycle process exits with error status (that can occur when sourceware's load limiting means anonymous version control access fails, for example), just sleeps until it's time to try again. The script is changed to flush stdout before running a subprocess in bot-cycle, so that when output is redirected (as expected for a bot) the status messages from bot-cycle appear in their proper position in its redirected output relative to the output from the subprocesses run, and to copy the logs directory before running builds in bot-cycle so that the logs from at least one complete build are always available for looking at how something failed, even while the next build is running. * scripts/build-many-glibcs.py: Add bot to usage message. Import time module. (Context.__init__): Initialize self.logsdir_old. (Context.run_builds): Handle bot action. (Context.bot_cycle): Copy logs directory before running builds. (Context.bot_run_self): Take argument for whether to check subprocess result. Flush stdout before running subprocess. (Context.bot): New function. (get_parser): Allow bot action.
* Add build-many-glibcs.py bot-cycle action.Joseph Myers2016-11-301-9/+161
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch continues the process of setting up build-many-glibcs.py to run as a bot monitoring for and reporting on build issues by adding a bot-cycle action to the script. When this action is used, it will run the checkout action (re-execing itself if it was changed by that action), then rebuild whichever of host-libraries, compilers, glibcs should be rebuilt based on changed versions, time elapsed and state of previous builds. Email is sent with the results of the build (for each build action done). The rebuild logic is: if previous build time or versions aren't recorded, rebuild that component. If the script has changed, rebuild everything. If any relevant component version has changed, rebuild, except for not rebuilding compilers if the time indicated in the bot configuration has not passed since the last build of the compilers. If one piece is rebuilt then rebuild subsequent pieces as well. Using bot-cycle requires a configuration file bot-config.json in the toplevel directory used by build-many-glibcs.py. It might contain e.g. { "compilers-rebuild-delay": 604800, "email-from": "Example Name <user@example.org>", "email-server": "localhost", "email-subject": "GCC 6 %(action)s %(build-time)s build results", "email-to": "libc-testresults@sourceware.org" } My next intended step is adding a further action "bot" which loops running bot-cycle then sleeping for an amount of time given in bot-config.json. Then I'll set up a bot using that action (building with GCC 6 branch; a bot using GCC mainline may wait until the SH out-of-memory issues <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78460> are fixed; I expect the bot to mail to me until it seems ready to switch to mailing to gcc-testresults). * scripts/build-many-glibcs.py: Add bot-cycle to usage message. Import email.mime.text, email.utils and smtplib modules. (Context.__init__): Initialize self.bot_config_json. (Context.run_builds): Handle bot-cycle action. (Context.load_bot_config_json): New function. (Context.part_build_old): Likewise. (Context.bot_cycle): Likewise. (Context.bot_build_mail): Likewise. (Context.bot_run_self): Likewise. (get_parser): Allow bot-cycle action.
* Make build-many-glibcs.py store more information about builds.Joseph Myers2016-11-261-4/+111
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes build-many-glibcs.py store information about builds in JSON format. This is part of preparing it for use in a bot checking for regressions. The information stored is: time of last build (of host-libraries, compilers or glibcs); versions of components used in the last build (for compilers, host library versions are properly copied from those used for the previous host-libraries build, and for glibcs, component versions other than that of glibc are similarly copied from the last compilers build); PASS/FAIL/UNRESOLVED results of the individual build steps; a list of changed results; a list of tests (that are still run at all) that have ever been recorded to PASS. The first pieces of information are intended to be used by a bot to decide whether a rebuild is appropriate (based on some combination of elapsed time and changes to versions; a bot might want to rebuild glibcs if there had been any change but only rebuild compilers after enough time had elapsed, for example). All the information is intended to be used in generating mails with results information. This state is specifically for full builds (no individual configs for building compilers or glibcs specified). If individual configs are specified, build-time and build-versions information is cleared (since it will no longer accurately reflect the install directory contents), while the other information is left unchanged. This reflects the motivation of providing information for a bot checking for regressions; the contents of build-state.json in a tree used for manual builds that may be only for some configurations are not particularly important. * scripts/build-many-glibcs.py: Import datetime module. (Context.__init__): Load JSON build state. Initialize list of status logs. (Context.run_builds): Update saved build state. (Context.add_makefile_cmdlist): Update list of status logs. (Context.load_build_state_json): New function. (Context.store_build_state_json): Likewise. (Context.clear_last_build_state): Likewise. (Context.update_build_state): Likewise. (CommandList.status_logs): Likewise.
* Make build-many-glibcs.py re-exec itself if changed by checkout.Joseph Myers2016-11-251-0/+14
| | | | | | | | | | | | | | | | | | | Updating build-many-glibcs.py may result in changes to the default versions of components, or to the set of components (if e.g. Hurd support is added and that requires a new component). It's desirable for the checkout process to leave a source tree that is ready to use. If the checkout updated the script itself, that means it needs to be rerun to cause any new versions or components referenced by the new script version to be properly checked out. This patch makes the script check if it was modified by the checkout process, and re-exec itself (with the same arguments) if so. * scripts/build-many-glibcs.py (Context.__init__): Save text of script being executed. (Context.get_script_text): New function. (Context.exec_self): Likewise. (Context.checkout): Re-exec script if changed by checkout process.
* Make build-many-glibcs.py track component versions requested and used.Joseph Myers2016-11-241-10/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes build-many-glibcs.py record the component versions checked out, and whether those versions were explicitly requested or defaults, in a file versions.json in the source directory. The preferred version of a component is the first of: one explicitly specified on the command line; one explicitly specified on the command line in a previous run of build-many-glibcs.py; a default version for that component. Thus, once you've run build-many-glibcs.py checkout once with the updated script (making sure to specify the right versions of any components previously checked out with a non-default version), in future you can just run it without version specifiers and it will know when a default-version component has changed its default version and so should be checked out again. Because you might have local changes and not want a default-version component checkout replaced, you need to pass the --replace-sources option to allow the script to delete and replace a component source directory automatically; otherwise, it will give an error if a version has changed. The script does not try to change branches of git or SVN checkouts without checking out from scratch; if the version number requested has changed and --replace-sources is used, the relevant source directory will be removed completely and a new one checked out from scratch. Apart from allowing automatic updates of components with default versions, this also facilitates bots reporting on the versions used in a given build. versions.json contains not just information on the version number and whether that was requested explicitly, but also git or SVN revision information intended to be used in email reports from bots. * scripts/build-many-glibcs.py: Import json module. (Context.__init__): Take replace_sources argument. Load versions.json. (Context.load_versions_json): New function. (Context.store_json): Likewise. (Context.store_versions_json): Likewise. (Context.set_component_version): Likewise. (Context.checkout): Update versions.json. Check for and handle changes of version. Prefer previously explicitly specified version to default version. (Context.checkout_vcs): Return a revision identifier. (Context.git_checkout): Likewise. (Context.gcc_checkout): Likewise. (get_parser): Add --replace-sources option. (main): Pass replace_sources argument to Context call.
* build-many-glibcs: Revert -fno-isolate-erroneous-paths options for tileproChris Metcalf2016-11-231-2/+1
| | | | TILEPro now has a __builtin_trap instruction in gcc tip and gcc 6.
* Make build-many-glibcs.py use -fno-isolate-erroneous-paths options for tilepro.Joseph Myers2016-11-221-5/+7
| | | | | | | | | | | | | | | | | | My most recent build-many-glibcs.py build with GCC mainline showed build failures for tilepro with the symptoms (multiple definitions of symbols building ld.so, see the build log referenced in the GCC bug referenced in the comment for an example) that correspond to the isolate-erroneous-paths optimization not being suitable for building glibc unless the GCC port provides a trap pattern (so __builtin_trap expands to an inline instruction rather than a call to abort). Since tilepro indeed lacks such as pattern in GCC, this patch duly arranges for this optimization to be disabled when building for tilepro, as it is for sh. Tested (compilation only) for tilepro. * scripts/build-many-glibcs.py (Context.add_all_configs): Also use -fno-isolate-erroneous-paths options for tilepro.
* Quote shell commands in logs from build-many-glibcs.py.Joseph Myers2016-11-181-1/+11
| | | | | | | | | | | | | | As requested in <https://sourceware.org/ml/libc-alpha/2016-11/msg00664.html>, this patch makes the commands recorded in build-many-glibcs.py quote words so they can be cut-and-pasted back into a shell. (Note that these logs are generated by the wrapper script generated to run commands with logs, hence the needs for quoting logic to be implemented in that shell script.) * scripts/build-many-glibcs.py (Context.write_files): Make wrapper script quote words in command output to log suitably for input to the shell.
* Actually use newly built host libraries in build-many-glibcs.py.Joseph Myers2016-11-171-0/+4
| | | | | | | | This patch adds the missing GCC configure options required to make use of the newly built host libraries in build-many-glibcs.py. * scripts/build-many-glibcs.py (Config.build_gcc): Configure with newly built gmp, mpfr and mpc.
* Fix build-many-glibcs.py style issues.Joseph Myers2016-11-141-17/+10
| | | | | | | | | | | * scripts/build-many-glibcs.py (os.path): Do not import. (Context): Inherit explicitly from object. Remove blank line between class and docstring. (Config): Likewise. (Glibc): Likewise. (Command): Likewise. (CommandList): Likewise. (Context.write_files): Store chmod mode in a variable.
* Add script to build many glibc configurations.Joseph Myers2016-11-111-0/+1142
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a Python (3.5 or later) script to build many different configurations of glibc, including building the required cross compilers first. It's not intended to change any patch testing requirements, although some people may wish to use it for high-risk patches such as adding warning options (and it can also be used to test building, including compiling tests, for an individual configuration, if e.g. you wish to do such a compilation test of a patch for an architecture it touches). The configurations include all the GNU/Linux ABI variants in <https://sourceware.org/glibc/wiki/ABIList> (although some do not yet build cleanly) and it would be desirable to cover enough other variants e.g. for CPUs using different sysdeps directories to test building each piece of code in glibc at least once. It would also be desirable to extend it to cover Hurd and NaCl, which might best be done by people familiar with those configurations. You call the script as build-many-glibcs.py /some/where thing-to-do <other-arguments> where /some/where is a working directory for the script. It will create and use subdirectories build, install, logs therein. You can use it with thing-to-do being "checkout" to create a subdirectory src therein, with subdirectories binutils, gcc, glibc, gmp, linux, mpc, mpfr with the sources of those components, or create those directories manually (all except glibc can be symlinks to sources elsewhere). In the checkout case, by default it checks out GCC 6 branch, binutils 2.27 branch, glibc mainline and releases of other components. You can specify <component>-<version> to choose a version to check out, where <version> is "vcs-mainline" or "vcs-<branch>" to check out from version control (only supported for gcc, binutils, glibc) and otherwise a release version number to download and use a tarball; components not specified on the command line have default versions checked out. If you rerun "checkout" (with the same version specifications) it will update checkouts from version control, but will not detect cases where the location something is expected to be checked out from has changed. Other than "checkout", thing-to-do is one of host-libraries, compilers, glibcs. So you run, in that order: build-many-glibcs.py /some/where host-libraries build-many-glibcs.py /some/where compilers build-many-glibcs.py /some/where glibcs host-libraries is run once and then those libraries are used for all the compilers. compilers can be run once and then used many times for testing different glibc versions (so a bot only needs to update glibc and rerun the glibcs task, if using stable GCC / binutils; if testing the latest versions of the whole toolchain together including mainline GCC, it would probably want to update everything and rerun both compilers and glibcs). You can also name particular variants after "compilers" or "glibcs" to build just those variants (the possible variants are hardcoded in the script). I may add support for allowing the set of configurations to depend on the GCC version (to get cleaner default results), and optionally looping over architecture-independent glibc variants of CFLAGS and configure options as well, for every glibc configuration listed (e.g. -Os). GCC versions before 4.9 are not expected to work (the code uses --with-glibc-version to get the bootstrap GCC appropriately configured). There are various problems for particular configurations as well. Command-line options to the script: -jN to run N jobs in parallel (default the number of CPU cores reported by the system); --keep=all or --keep=failed to control keeping around build directories (default --keep=none). * scripts/build-many-glibcs.py: New file.
* Make check-installed-headers.sh ignore sys/sysctl.h for x32.Joseph Myers2016-11-071-0/+23
| | | | | | | | | | | check-installed-headers tests were failing for x32 because of the x86 bits/sysctl.h containing a #error for x32. This patch makes the tests ignore sys/sysctl.h for x32, similar to the other special-casing of particular headers. Tested for x86_64 (full testing for -m64, compile-only for x32). * scripts/check-installed-headers.sh: Ignore sys/sysctl.h for x32.
* Minor corrections to scripts/check-installed-headers.sh.Zack Weinberg2016-09-281-3/+8
| | | | | * scripts/check-installed-headers.sh: Generalize treatment of sys/elf.h to all target architectures.
* Installed header hygiene (BZ#20366): Test of installed headers.Zack Weinberg2016-09-231-0/+146
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a test to ensure that the problems fixed in the last several patches do not recur. Each directory checks the headers that it installs for two properties: first, each header must be compilable in isolation, as both C and C++, under a representative combination of language and library conformance levels; second, there is a blacklist of identifiers that may not appear in any installed header, currently consisting of the legacy BSD typedefs. (There is an exemption for the headers that define those typedefs, and for the RPC headers. It may be necessary to make this more sophisticated if we add more stuff to the blacklist in the future.) In order for this test to work correctly, every wrapper header that actually defines something must guard those definitions with #ifndef _ISOMAC. This is the existing mechanism used by the conform/ tests to tell wrapper headers not to define anything that the public header wouldn't, and not to use anything from libc-symbols.h. conform/ only cares for headers that we need to check for standards conformance, whereas this test applies to *every* header. (Headers in include/ that are either installed directly, or are internal-use-only and do *not* correspond to any installed header, are not affected.) * scripts/check-installed-headers.sh: New script. * Rules: In each directory that defines header files to be installed, run check-installed-headers.sh on them as a special test. * Makefile: Likewise for the headers installed at top level. * include/aliases.h, include/alloca.h, include/argz.h * include/arpa/nameser.h, include/arpa/nameser_compat.h * include/elf.h, include/envz.h, include/err.h * include/execinfo.h, include/fpu_control.h, include/getopt.h * include/gshadow.h, include/ifaddrs.h, include/libintl.h * include/link.h, include/malloc.h, include/mcheck.h * include/mntent.h, include/netinet/ether.h * include/nss.h, include/obstack.h, include/printf.h * include/pty.h, include/resolv.h, include/rpc/auth.h * include/rpc/auth_des.h, include/rpc/auth_unix.h * include/rpc/clnt.h, include/rpc/des_crypt.h * include/rpc/key_prot.h, include/rpc/netdb.h * include/rpc/pmap_clnt.h, include/rpc/pmap_prot.h * include/rpc/pmap_rmt.h, include/rpc/rpc.h * include/rpc/rpc_msg.h, include/rpc/svc.h * include/rpc/svc_auth.h, include/rpc/xdr.h * include/rpcsvc/nis_callback.h, include/rpcsvc/nislib.h * include/rpcsvc/yp.h, include/rpcsvc/ypclnt.h * include/rpcsvc/ypupd.h, include/shadow.h * include/stdio_ext.h, include/sys/epoll.h * include/sys/file.h, include/sys/gmon.h, include/sys/ioctl.h * include/sys/prctl.h, include/sys/profil.h * include/sys/statfs.h, include/sys/sysctl.h * include/sys/sysinfo.h, include/ttyent.h, include/utmp.h * sysdeps/arm/nacl/include/bits/setjmp.h * sysdeps/mips/include/sys/asm.h * sysdeps/unix/sysv/linux/include/sys/sysinfo.h * sysdeps/unix/sysv/linux/include/sys/timex.h * sysdeps/x86/fpu/include/bits/fenv.h: Add #ifndef _ISOMAC guard around internal declarations. Add multiple-inclusion guard if not already present.
* sysd-rules: Cut down the number of rtld-% pattern rulesFlorian Weimer2016-09-201-0/+4
| | | | | | rtld only needs shared objects, so the other patterns are pointless and significantly increase the work make has to perform while identifying which pattern rule to apply.
* mach: Add more allowed external headersSamuel Thibault2016-08-211-1/+1
| | | | * scripts/check-local-headers.sh (exclude): Add mach_debug/.
* Revert "Add pretty printers for the NPTL lock types"Siddhesh Poyarekar2016-07-111-118/+0
| | | | | | | | | | | | | | | | This reverts commit 62ce266b0b261def2c6329be9814ffdcc11964d6. The change is not mature enough because it needs the following fixes: 1. Redirect test output to a file like other tests 2. Eliminate the need to use a .gdbinit because distributions will break without it. I should have caught that but I was in too much of a hurry to get the patch in :/ 3. Feature checking during configure to determine things like minimum required gdb version, python-pexpect version, etc. to make sure that tests work correctly.
* Add pretty printers for the NPTL lock typesMartin Galvan2016-07-081-0/+118
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds pretty printers for the following NPTL types: - pthread_mutex_t - pthread_mutexattr_t - pthread_cond_t - pthread_condattr_t - pthread_rwlock_t - pthread_rwlockattr_t To load the pretty printers into your gdb session, do the following: python import sys sys.path.insert(0, '/path/to/glibc/build/nptl/pretty-printers') end source /path/to/glibc/source/pretty-printers/nptl-printers.py You can check which printers are registered and enabled by issuing the 'info pretty-printer' gdb command. Printers should trigger automatically when trying to print a variable of one of the types mentioned above. The printers are architecture-independent, and were manually tested on both the gdb CLI and Eclipse CDT. In order to work, the printers need to know the values of various flags that are scattered throughout pthread.h and pthreadP.h as enums and #defines. Since replicating these constants in the printers file itself would create a maintenance burden, I wrote a script called gen-py-const.awk that Makerules uses to extract the constants. This script is pretty much the same as gen-as-const.awk, except it doesn't cast the constant values to 'long' and is thorougly documented. The constants need only to be enumerated in a .pysym file, which is then referenced by a Make variable called gen-py-const-headers. As for the install directory, I discussed this with Mike Frysinger and Siddhesh Poyarekar, and we agreed that it can be handled in a separate patch, and it shouldn't block merging of this one. In addition, I've written a series of test cases for the pretty printers. Each lock type (mutex, condvar and rwlock) has two test programs, one for itself and other for its related 'attributes' object. Each test program in turn has a PExpect-based Python script that drives gdb and compares its output to the expected printer's. The tests run on the glibc host, which is assumed to have both gdb and PExpect; if either is absent the tests will fail with code 77 (UNSUPPORTED). For cross-testing you should use cross-test-ssh.sh as test-wrapper. I've tested the printers on both a native build and a cross build using a Beaglebone Black, with the build system's filesystem shared with the board through NFS. Finally, I've written a README that explains all this and more. Hopefully this should be good to go in now. Thanks. ChangeLog: 2016-07-04 Martin Galvan <martin.galvan@tallertechnologies.com> * Makeconfig (build-hardcoded-path-in-tests): Set to 'yes' for shared builds if tests-need-hardcoded-path is defined. (all-subdirs): Add pretty-printers. * Makerules ($(py-const)): New rule. * Rules (others): Add $(py-const), if defined. * nptl/Makefile (gen-py-const-headers): Define. * nptl/nptl-printers.py: New file. * nptl/nptl_lock_constants.pysym: Likewise. * pretty-printers/Makefile: Likewise. * pretty-printers/README: Likewise. * pretty-printers/test-condvar-attributes.c: Likewise. * pretty-printers/test-condvar-attributes.p: Likewise. * pretty-printers/test-condvar-printer.c: Likewise. * pretty-printers/test-condvar-printer.py: Likewise. * pretty-printers/test-mutex-attributes.c: Likewise. * pretty-printers/test-mutex-attributes.py: Likewise. * pretty-printers/test-mutex-printer.c: Likewise. * pretty-printers/test-mutex-printer.py: Likewise. * pretty-printers/test-rwlock-attributes.c: Likewise. * pretty-printers/test-rwlock-attributes.py: Likewise. * pretty-printers/test-rwlock-printer.c: Likewise. * pretty-printers/test-rwlock-printer.py: Likewise. * pretty-printers/test_common.py: Likewise. * scripts/gen-py-const.awk: Likewise.
* Add more hurd exception to local headers listSamuel Thibault2016-05-301-1/+1
| | | | | | * scripts/check-local-headers.sh (exclude): Add hurd/ihash.h, and include .*-.*/ in addition to .*-.*-.*/ (i.e. i386-gnu in addition to i386-linux-gnu).
* Allow overriding of CFLAGS as well as CPPFLAGS for rtld.Nick Alcock2016-04-091-1/+1
| | | | | We need this to pass -fno-stack-protector to all the pieces of rtld in non-elf/ directories.
* Make shebang interpreter directives consistentMarko Myllynen2016-01-083-3/+3
| | | | Undo changes in files maintained elsewhere.
* Make shebang interpreter directives consistentMarko Myllynen2016-01-0716-16/+16
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* Update miscellaneous files from upstream sources.Joseph Myers2016-01-053-34/+80
| | | | | | | | | | | This patch updates texinfo.tex, config.guess, config.sub and move-if-change from their respective upstream sources. * manual/texinfo.tex: Update to version 2016-01-04.21 with trailing whitespace removed. * scripts/config.guess: Update to version 2016-01-01. * scripts/config.sub: Update to version 2016-01-01. * scripts/move-if-change: Update from gnulib.
* Update copyright dates not handled by scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've updated copyright dates in glibc for 2016. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. * NEWS: Update copyright dates. * catgets/gencat.c (print_version): Likewise. * csu/version.c (banner): Likewise. * debug/catchsegv.sh: Likewise. * debug/pcprofiledump.c (print_version): Likewise. * debug/xtrace.sh (do_version): Likewise. * elf/ldconfig.c (print_version): Likewise. * elf/ldd.bash.in: Likewise. * elf/pldd.c (print_version): Likewise. * elf/sotruss.sh: Likewise. * elf/sprof.c (print_version): Likewise. * iconv/iconv_prog.c (print_version): Likewise. * iconv/iconvconfig.c (print_version): Likewise. * locale/programs/locale.c (print_version): Likewise. * locale/programs/localedef.c (print_version): Likewise. * login/programs/pt_chown.c (print_version): Likewise. * malloc/memusage.sh (do_version): Likewise. * malloc/memusagestat.c (print_version): Likewise. * malloc/mtrace.pl: Likewise. * manual/libc.texinfo: Likewise. * nptl/version.c (banner): Likewise. * nscd/nscd.c (print_version): Likewise. * nss/getent.c (print_version): Likewise. * nss/makedb.c (print_version): Likewise. * posix/getconf.c (main): Likewise. * scripts/test-installation.pl: Likewise. * sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-0413-13/+13
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* list-fixed-bugs: use argparse for the commandlineMike Frysinger2015-12-291-1/+19
| | | | This makes the interface more friendly to users.
* Use shell's builtin pwd.Ludovic Courtès2015-12-021-13/+5
| | | | | Insisting on /bin/pwd is unnecessary nowadays. Autoconf-generated scripts have been using the shell's built-in "pwd" for a long time.`
* Implement "make update-all-abi"Florian Weimer2015-11-241-0/+66
| | | | | | | | * scripts/update-abilist.sh: New file. * Makefile (+subdir_targets): Add subdir_update-all-abi. * Makerules (update-all-abi-%, update-all-abi) (subdir_update-all-abi): New targets. * elf/Makefile (update-all-abi): New target.
* pylintrc: disable reportsMike Frysinger2015-11-111-1/+1
| | | | | I've never found these useful, nor found anyone else who likes them. Turn them off by default.
* Simplify the abilist formatFlorian Weimer2015-11-061-58/+9
| | | | | | | | | | | | | | | The new format lists the version on each line, as in: VERSION SYMBOL TYPE [VALUE] This makes it easier to process the files with line-oriented tools. The abilist files were converted with this awk script: /^[^ ]/ { version = $1 } /^ / { print version, substr($0, 2) } And sorted under the "C" locale with sort.
* Add script to list fixed bugs for the NEWS file.Joseph Myers2015-11-051-0/+46
| | | | | | | | | | This patch adds a script to list fixed bugs for the NEWS file, as proposed in <https://sourceware.org/ml/libc-alpha/2015-10/msg01043.html>, with the bugs listed in the format proposed in <https://sourceware.org/ml/libc-alpha/2015-11/msg00088.html>. * scripts/list-fixed-bugs.py: New file.
* Support PLT and GOT references in local PIC checkH.J. Lu2015-10-141-1/+1
| | | | | | | | | | | | | | Linker in binutils 2.26 and newer generate GOT references instead PLT references when -z now is passed to linker. We need to extend scripts/localplt.awk to allow PLT or GOT references. [BZ #19007] * scripts/localplt.awk: Also allow GOT references. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark _Unwind_Find_FDE, calloc, memalign, realloc and __libc_memalign with "+ REL R_386_GLOB_DAT". * sysdeps/x86_64/localplt.data: Mark calloc, memalign, realloc and __libc_memalign with "+ RELA R_X86_64_GLOB_DAT".
* Remove scripts/rpm2dynsym.sh.Joseph Myers2015-10-061-36/+0
| | | | | | | | | | The file scripts/rpm2dynsym.sh appears to be unused anywhere in glibc. This patch removes this script. Tested for x86_64 and x86 (testsuite, and that installed shared libraries are unchanged by the patch). * scripts/rpm2dynsym.sh: Remove file.
* [BZ #18796]Andrew Senkevich2015-08-191-1/+12
| | | | | * scripts/test-installation.pl: Don't add -lmvec to build options if libmvec wasn't built.
* gawk: fix gensub usageMike Frysinger2015-08-091-1/+1
| | | | | | The third arg can either be a string with "g" or "G", or it is a number. The empty string elicits a warning with newer versions like so: gawk: scripts/sysd-rules.awk:56: warning: gensub: third argument `' treated as 1
* Extend local PLT reference checkH.J. Lu2015-07-292-5/+82
| | | | | | | | | | | | | | On x86, linker in binutils 2.26 and newer consolidates R_*_JUMP_SLOT with R_*_GLOB_DAT relocation against the same symbol. This patch extends local PLT reference check to support alternate relocations. [BZ #18078] * scripts/check-localplt.awk: Support alternate relocations. * scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL sections. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and malloc entries with + REL R_386_GLOB_DAT. * sysdeps/x86_64/localplt.data: New file.
* Add more exception to local headers listSamuel Thibault2015-03-231-1/+1
| | | | | | * scripts/check-local-headers.sh (exclude): Add device/, hurd/hurd_types.h, hurd/ioctl_types.h, hurd/paths.h, hurd/ioctls.defs, cthreads.h.
* Let tests result in UNSUPPORTED; use that for unbuildable C++ casesRoland McGrath2015-03-101-8/+13
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* Fix localplt test breakage with new readelfAlan Modra2015-03-031-2/+2
| | | | | | | | | Since 2014-11-24 binutils git commit bb4d2ac2, readelf has appended the symbol version to symbols shown in reloc dumps. [BZ #16512] * scripts/localplt.awk: Strip off symbol version. * NEWS: Mention bug fix.
* Update copyright dates not handled by scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've updated copyright dates in glibc for 2015. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. Apart from the files updated last time (of which sotruss.ksh had moved to sotruss.sh during the year) this also updates nptl/version.c (missed from 2006 until October) and sysdeps/unix/sysv/linux/lddlibc4.c (missed since 2009). * NEWS: Update copyright dates. * catgets/gencat.c (print_version): Likewise. * csu/version.c (banner): Likewise. * debug/catchsegv.sh: Likewise. * debug/pcprofiledump.c (print_version): Likewise. * debug/xtrace.sh (do_version): Likewise. * elf/ldconfig.c (print_version): Likewise. * elf/ldd.bash.in: Likewise. * elf/pldd.c (print_version): Likewise. * elf/sotruss.sh: Likewise. * elf/sprof.c (print_version): Likewise. * iconv/iconv_prog.c (print_version): Likewise. * iconv/iconvconfig.c (print_version): Likewise. * locale/programs/locale.c (print_version): Likewise. * locale/programs/localedef.c (print_version): Likewise. * login/programs/pt_chown.c (print_version): Likewise. * malloc/memusage.sh (do_version): Likewise. * malloc/memusagestat.c (print_version): Likewise. * malloc/mtrace.pl: Likewise. * manual/libc.texinfo: Likewise. * nptl/version.c (banner): Likewise. * nscd/nscd.c (print_version): Likewise. * nss/getent.c (print_version): Likewise. * nss/makedb.c (print_version): Likewise. * posix/getconf.c (main): Likewise. * scripts/test-installation.pl: Likewise. * sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-0211-11/+11
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* Remove uses of sprintf in gen-posix-conf-vars.awkSiddhesh Poyarekar2015-01-021-5/+2
| | | | Simply some code by replacing sprintf in the awk script.
* Use one-dimension arrays in gen-posix-conf-vars.awkSiddhesh Poyarekar2014-12-311-23/+23
| | | | | | | | | | | | True multi-dimensional arrays were introduced in awk 4.0 and we support awk versions as early as 3.12. Use a single subscript of the form prefix_conf instead of two dimensions to work around this limitation. We also need one additional array of just the conf names subscripted by the prefix_conf to print the names for the specifications. * scripts/gen-posix-conf-vars.awk: Don't use multi-dimensional arrays.
* Make type for spec variable size as size_tSiddhesh Poyarekar2014-12-291-1/+1
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* Use posix-conf-vars.list to generate spec arraySiddhesh Poyarekar2014-12-291-0/+28
| | | | | | | | | | | | | | | | | | This patch adds support to generate the spec array in getconf from the conf.list. The generated code is mostly unchanged. the only changes are due to the change in layout of the spec and val arrays in the ELF. The val array can also be auto-generated from posix-conf-vars.list once the remaining macros are added to it. * posix/posix-conf-vars.list (SPEC:XBS5): Add sysconf prefix. * posix/confstr.c: Define NEED_SPEC_ARRAY to 0. * posix/posix-envs.def: Likewise. * sysdeps/posix/sysconf.c: Likewise. * posix/getconf.c: Define NEED_SPEC_ARRAY to 1. (specs): Remove array. * scripts/gen-posix-conf-vars.awk: Support generation of specs array.
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