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* support: Add xsetlocale functionArjun Shankar2022-08-303-0/+32
| | | | (cherry picked from commit cce35a50c1de0cec5cd1f6c18979ff6ee3ea1dd1)
* support: Implement TEST_COMPARE_STRINGFlorian Weimer2022-08-304-0/+213
| | | | (cherry picked from commit 1df872fd74f730bcae3df201a229195445d2e18a)
* support: Add capability to fork an sgid childSiddhesh Poyarekar2021-04-144-0/+150
| | | | | | | | | | | | | | | | | | | | | | Add a new function support_capture_subprogram_self_sgid that spawns an sgid child of the running program with its own image and returns the exit code of the child process. This functionality is used by at least three tests in the testsuite at the moment, so it makes sense to consolidate. There is also a new function support_subprogram_wait which should provide simple system() like functionality that does not set up file actions. This is useful in cases where only the return code of the spawned subprocess is interesting. This patch also ports tst-secure-getenv to this new function. A subsequent patch will port other tests. This also brings an important change to tst-secure-getenv behaviour. Now instead of succeeding, the test fails as UNSUPPORTED if it is unable to spawn a setgid child, which is how it should have been in the first place. Reviewed-by: Carlos O'Donell <carlos@redhat.com> (cherry picked from commit 716a3bdc41b2b4b864dc64475015ba51e35e1273)
* support: Typo and formatting fixesSiddhesh Poyarekar2021-04-142-4/+4
| | | | | | | - Add a newline to the end of error messages in transfer(). - Fixed the name of support_subprocess_init(). (cherry picked from commit 95c68080a3ded882789b1629f872c3ad531efda0)
* support: Pass environ to child processSiddhesh Poyarekar2021-04-141-1/+1
| | | | | | | Pass environ to posix_spawn so that the child process can inherit environment of the test. (cherry picked from commit e958490f8c74e660bd93c128b3bea746e268f3f6)
* support: Add support_capture_subprogramAdhemerval Zanella2021-04-1410-50/+551
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Its API is similar to support_capture_subprocess, but rather creates a new process based on the input path and arguments. Under the hoods it uses posix_spawn to create the new process. It also allows the use of other support_capture_* functions to check for expected results and free the resources. Checked on x86_64-linux-gnu. * support/Makefile (libsupport-routines): Add support_subprocess, xposix_spawn, xposix_spawn_file_actions_addclose, and xposix_spawn_file_actions_adddup2. (tst-support_capture_subprocess-ARGS): New rule. * support/capture_subprocess.h (support_capture_subprogram): New prototype. * support/support_capture_subprocess.c (support_capture_subprocess): Refactor to use support_subprocess and support_capture_poll. (support_capture_subprogram): New function. * support/tst-support_capture_subprocess.c (write_mode_to_str, str_to_write_mode, test_common, parse_int, handle_restart, do_subprocess, do_subprogram, do_multiple_tests): New functions. (do_test): Add support_capture_subprogram tests. * support/subprocess.h: New file. * support/support_subprocess.c: Likewise. * support/xposix_spawn.c: Likewise. * support/xposix_spawn_file_actions_addclose.c: Likewise. * support/xposix_spawn_file_actions_adddup2.c: Likewise. * support/xspawn.h: Likewise. Reviewed-by: Carlos O'Donell <carlos@redhat.com> (cherry picked from commit 0e169691290a6d2187a4ff41495fc5678cbfdcdc)
* Fix alignment of TLS variables for tls variant TLS_TCB_AT_TP [BZ #23403]Stefan Liebler2019-11-065-0/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The alignment of TLS variables is wrong if accessed from within a thread for architectures with tls variant TLS_TCB_AT_TP. For the main thread the static tls data is properly aligned. For other threads the alignment depends on the alignment of the thread pointer as the static tls data is located relative to this pointer. This patch adds this alignment for TLS_TCB_AT_TP variants in the same way as it is already done for TLS_DTV_AT_TP. The thread pointer is also already properly aligned if the user provides its own stack for the new thread. This patch extends the testcase nptl/tst-tls1.c in order to check the alignment of the tls variables and it adds a pthread_create invocation with a user provided stack. The test itself is migrated from test-skeleton.c to test-driver.c and the missing support functions xpthread_attr_setstack and xposix_memalign are added. ChangeLog: [BZ #23403] * nptl/allocatestack.c (allocate_stack): Align pointer pd for TLS_TCB_AT_TP tls variant. * nptl/tst-tls1.c: Migrate to support/test-driver.c. Add alignment checks. * support/Makefile (libsupport-routines): Add xposix_memalign and xpthread_setstack. * support/support.h: Add xposix_memalign. * support/xthread.h: Add xpthread_attr_setstack. * support/xposix_memalign.c: New File. * support/xpthread_attr_setstack.c: Likewise. (cherry picked from commit bc79db3fd487daea36e7c130f943cfb9826a41b4)
* nptl: Fix pthread_rwlock_try*lock stalls (Bug 23844)Carlos O'Donell2019-02-173-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a full analysis of both the pthread_rwlock_tryrdlock() stall and the pthread_rwlock_trywrlock() stall see: https://sourceware.org/bugzilla/show_bug.cgi?id=23844#c14 In the pthread_rwlock_trydlock() function we fail to inspect for PTHREAD_RWLOCK_FUTEX_USED in __wrphase_futex and wake the waiting readers. In the pthread_rwlock_trywrlock() function we write 1 to __wrphase_futex and loose the setting of the PTHREAD_RWLOCK_FUTEX_USED bit, again failing to wake waiting readers during unlock. The fix in the case of pthread_rwlock_trydlock() is to check for PTHREAD_RWLOCK_FUTEX_USED and wake the readers. The fix in the case of pthread_rwlock_trywrlock() is to only write 1 to __wrphase_futex if we installed the write phase, since all other readers would be spinning waiting for this step. We add two new tests, one exercises the stall for pthread_rwlock_trywrlock() which is easy to exercise, and one exercises the stall for pthread_rwlock_trydlock() which is harder to exercise. The pthread_rwlock_trywrlock() test fails consistently without the fix, and passes after. The pthread_rwlock_tryrdlock() test fails roughly 5-10% of the time without the fix, and passes all the time after. Signed-off-by: Carlos O'Donell <carlos@redhat.com> Signed-off-by: Torvald Riegel <triegel@redhat.com> Signed-off-by: Rik Prohaska <prohaska7@gmail.com> Co-authored-by: Torvald Riegel <triegel@redhat.com> Co-authored-by: Rik Prohaska <prohaska7@gmail.com> (cherry picked from commit 5fc9ed4c4058bfbdf51ad6e7aac7d209b580e8c4)
* support: Do not require overflow builtin in support/blob_repeat.cFlorian Weimer2018-12-151-3/+23
| | | | | | | It is only available in GCC 5 and later. Tested-by: Romain Naour <romain.naour@gmail.com> (cherry picked from commit 0c1719e65b2a5a80331d4f635612799f853b0479)
* support: Implement <support/descriptors.h> to track file descriptorsFlorian Weimer2018-12-126-0/+533
| | | | (cherry picked from commit f255336a9301619519045548acb2e1027065a837)
* support: Close original descriptors in support_capture_subprocessFlorian Weimer2018-12-121-0/+6
| | | | (cherry picked from commit 02cd5c1a8d033d7f91fea12a66bb44d1bbf85f76)
* support_quote_string: Do not use str parameter nameFlorian Weimer2018-12-121-2/+2
| | | | | | | This avoids a build failure if this identifier is used as a macro in a test. (cherry picked from commit 47d8d9a2172f827a8dde7695f415aa6f78a82d0e)
* support: Implement support_quote_stringFlorian Weimer2018-12-124-0/+93
| | | | | Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> (cherry picked from commit c74a91deaa5de416237c02bbb3e41bda76ca4c7b)
* support: Print timestamps in timeout handlerFlorian Weimer2018-11-191-0/+28
| | | | | | | | This is sometimes useful to determine if a test truly got stuck, or if it was making progress (logging information to standard output) and was merely slow to finish. (cherry picked from commit 35e3fbc4512c880fccb35b8e3abd132d4be18480)
* support_blob_repeat: Call mkstemp directory for the backing fileFlorian Weimer2018-11-021-5/+9
| | | | | | This avoids a warning during post-test cleanup. (cherry picked from commit a91e9301c47bb688f4e496a19cfc68261ff18293)
* stdlib/test-bz22786: Avoid spurious test failures using alias mappingsFlorian Weimer2018-11-024-0/+409
| | | | | | | | | | On systems without enough random-access memory, stdlib/test-bz22786 will go deeply into swap and time out, even with a substantial TIMEOUTFACTOR. This commit adds a facility to construct repeating strings with alias mappings, so that the requirement for physical memory, and uses it in stdlib/test-bz22786. (cherry picked from commit f5e7e95921847bd83186bfe621fc2b48c4de5477)
* support: Add TEST_NO_SETVBUFFlorian Weimer2018-06-263-1/+7
| | | | | This is sometimes needed for testing stdio streams, where the setvbuf call in the test driver could interfere with the test.
* support: Add wrappers for pthread_barrierattr_tFlorian Weimer2018-05-295-0/+84
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* Switch IDNA implementation to libidn2 [BZ #19728] [BZ #19729] [BZ #22247]Florian Weimer2018-05-231-2/+0
| | | | | This provides an implementation of the IDNA2008 standard and fixes CVE-2016-6261, CVE-2016-6263, CVE-2017-14062.
* support: Add TEST_COMPARE_BLOB, support_quote_blobFlorian Weimer2018-05-167-0/+377
| | | | | | | The declaration of support_test_compare_blob uses unsigned long int, to avoid including <stddef.h>. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* support_format_addrinfo: Include unknown error number in resultFlorian Weimer2018-04-011-1/+5
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* [BZ 1190] Make EOF sticky in stdio.Zack Weinberg2018-03-133-0/+155
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | C99 specifies that the EOF condition on a file is "sticky": once EOF has been encountered, all subsequent reads should continue to return EOF until the file is closed or something clears the "end-of-file indicator" (e.g. fseek, clearerr). This is arguably a change from C89, where the wording was ambiguous; the BSDs always had sticky EOF, but the System V lineage would attempt to read from the underlying fd again. GNU libc has followed System V for as long as we've been using libio, but nowadays C99 conformance and BSD compatibility are more important than System V compatibility. You might wonder if changing the _underflow impls is sufficient to apply the C99 semantics to all of the many stdio functions that perform input. It should be enough to cover all paths to _IO_SYSREAD, and the only other functions that call _IO_SYSREAD are the _seekoff impls, which is OK because seeking clears EOF, and the _xsgetn impls, which, as far as I can tell, are unused within glibc. The test programs in this patch use a pseudoterminal to set up the necessary conditions. To facilitate this I added a new test-support function that sets up a pair of pty file descriptors for you; it's almost the same as BSD openpty, the only differences are that it allocates the optionally-returned tty pathname with malloc, and that it crashes if anything goes wrong. [BZ #1190] [BZ #19476] * libio/fileops.c (_IO_new_file_underflow): Return EOF immediately if the _IO_EOF_SEEN bit is already set; update commentary. * libio/oldfileops.c (_IO_old_file_underflow): Likewise. * libio/wfileops.c (_IO_wfile_underflow): Likewise. * support/support_openpty.c, support/tty.h: New files. * support/Makefile (libsupport-routines): Add support_openpty. * libio/tst-fgetc-after-eof.c, wcsmbs/test-fgetwc-after-eof.c: New test cases. * libio/Makefile (tests): Add tst-fgetc-after-eof. * wcsmbs/Makefile (tests): Add tst-fgetwc-after-eof.
* support: Preserve errno in write_message, TEST_VERIFY and other checksFlorian Weimer2018-01-124-0/+12
| | | | | These facilities could clobber errno, which makes it difficult to write certain checks because a specific order has to be used.
* resolv: Support binary labels in test frameworkFlorian Weimer2018-01-081-133/+161
| | | | | | | | | | The old implementation based on hsearch_r used an ad-hoc C string encoding and produced an incorrect format on the wire for domain names which contained bytes which needed escaping when printed. This commit switches to ns_name_pton for the wire format conversion (now that we have separate tests for it) and uses a tsearch tree with a suitable comparison function to locate compression targets.
* support: Increase usability of TEST_COMPAREFlorian Weimer2018-01-083-32/+37
| | | | | | | | | | | | | | | | | | | | | The previous implementation of the TEST_COMPARE macro would fail to compile code like this: int ret = res_send (query, sizeof (query), buf, sizeof (buf)); TEST_COMPARE (ret, sizeof (query) + 2 /* Compression reference. */ + 2 + 2 + 4 + 2 /* Type, class, TTL, RDATA length. */ + 1 /* Pascal-style string length. */ + strlen (expected_name)); This resulted in a failed static assertion, "integer conversions may alter sign of operands". A user of the TEST_COMPARE would have to add a cast to fix this. This patch reverts to the original proposed solution of a run-time check, making TEST_COMPARE usable for comparisons of numbers with types with different signedness in more contexts.
* support: Define support_static_assert for use with C and C++Florian Weimer2018-01-081-9/+16
| | | | And update TEST_COMPARE to use it, to make it usable from C++.
* support_enter_mount_namespace: Fix indentationSamuel Thibault2018-01-041-1/+1
| | | | * support/support_enter_mount_namespace.c: Fix indentation.
* hurd: Fix support/support_enter_mount_namespace.c buildSamuel Thibault2018-01-041-0/+2
| | | | | * support/support_enter_mount_namespace.c [!CLONE_NEWNS]: Do not include <sys/mount.h>.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-01140-140/+140
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* copy_file_range: New function to copy file dataFlorian Weimer2017-12-225-0/+90
| | | | | The semantics are based on the Linux system call, but a very close emulation in user space is provided.
* support: Simplify compiling most of support/ outside of glibcFlorian Weimer2017-12-1411-2/+11
| | | | | | | Some include files were missing because they are implied by the in-tree build process. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Implement interfaces for memory protection keysFlorian Weimer2017-12-057-1/+133
| | | | | | | | | | | | | | | | This adds system call wrappers for pkey_alloc, pkey_free, pkey_mprotect, and x86-64 implementations of pkey_get and pkey_set, which abstract over the PKRU CPU register and hide the actual number of memory protection keys supported by the CPU. pkey_mprotect with a -1 key is implemented using mprotect, so it will work even if the kernel does not support the pkey_mprotect system call. The system call wrapers use unsigned int instead of unsigned long for parameters, so that no special treatment for x32 is needed. The flags argument is currently unused, and the access rights bit mask is limited to two bits by the current PKRU register layout anyway. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* support/tst-test_compare: Fix 32-bit/64-bit expected output mismatchFlorian Weimer2017-12-051-2/+2
| | | | | | The use of a long type resulted in test output differences between 32-bit and 64-bit architectures, causing the test to fail on 32-bit architectures.
* support: Add TEST_COMPARE macroFlorian Weimer2017-12-044-0/+216
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* support_become_root: Fix comment styleChristian Brauner2017-11-181-1/+1
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* support_become_root: Don't fail when /proc/<pid/setgroups is missingChristian Brauner2017-11-181-5/+16
| | | | | | | The requirement to write "deny" to /proc/<pid>/setgroups for a given user namespace before being able to write a gid mapping was introduced in Linux 3.19. Before that this requirement including the file did not exist. So don't fail when errno == ENOENT.
* support_enter_mount_namespace: Unshare with mount --make-rprivateFlorian Weimer2017-11-183-0/+51
| | | | | | | System defaults vary, and a mere unshare (CLONE_NEWNS) (which is part of support_become_root) is no longer sufficient. Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
* support_create_temp_directory: Align behavior with create_temp_fileFlorian Weimer2017-11-184-15/+10
| | | | | | | | create_temp_file automatically supplies the test directory and the XXXXXX suffix. support_create_temp_directory required the caller to specify them, which was confusing. Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
* support_become_root: Enable file creation in user namespacesFlorian Weimer2017-11-171-3/+54
| | | | | | | | Without UID/GID maps, file creation will file with EOVERFLOW. This patch is based on DJ Delorie's work on container testing. Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
* support: Add <support/next_to_fault.h>Florian Weimer2017-11-133-0/+101
| | | | Based on the implementation in resolv/tst-inet_pton.c.
* support: Add xstrndup, xunlink, xreadlink, support_create_temp_directoryFlorian Weimer2017-11-1210-5/+207
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* support_format_hostent: Add more error information for NETDB_INTERNALFlorian Weimer2017-10-051-4/+10
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* Revert "resolv_test.c: also cope with CONNREFUSED errors returned by recvfrom"Samuel Thibault2017-09-251-7/+1
| | | | This reverts commit 6174537c24cfe324d6e8f5a2a421883df12b8b6a.
* resolv_test.c: also cope with CONNREFUSED errors returned by recvfromSamuel Thibault2017-09-251-1/+7
| | | | | | | | | | | server_thread_udp_process_one already takes care of calling sendto() instead of xsendto to be able to ignore the case where the client has closed the socket. Depending on the TCP/IP stack behavior, this error could be notified later through recvfrom(), so we need to ignore it there too. * support/resolv_test.c (server_thread_udp_process_one): Call recvfrom instead of xrecvfrom, and ignore ECONNREFUSED errors.
* Implement xdlopen, xdlsym and xdlclose routines which terminate testPaul Pluzhnikov2017-09-203-0/+93
| | | | | | | program with appropriate message if the corresponding dlfcn.h routine returns an error. Use them in stdlib/tst-tls-atexit.c
* support_chroot_create: Add support for /etc/hosts, /etc/host.confFlorian Weimer2017-09-012-12/+31
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* rwlock: Fix explicit hand-over (bug 21298)Carlos O'Donell2017-07-288-0/+172
| | | | | | | Without this fix, the rwlock can fail to execute the explicit hand-over in certain cases (e.g., empty critical sections that switch quickly between read and write phases). This can then lead to errors in how __wrphase_futex is accessed, which in turn can lead to deadlocks.
* support: Add resolver testing mode which does not patch _resFlorian Weimer2017-07-052-2/+45
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* support: Add support_chroot_create and support_chroot_freeFlorian Weimer2017-07-053-0/+104
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* support: Check isolation of loopback addresses in tst-support-namespaceFlorian Weimer2017-07-051-2/+82
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