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* According to a clarification at http://austingroupbugs.net/view.php?id=503emaste2012-09-122-4/+3
| | | | | | | ptsname may set errno, so avoid saving and restoring errno across the function. PR: standards/171572
* Avoid mapping ENOENT to ENOTDIR for non-existent path components.emaste2012-09-121-2/+0
| | | | | | | | | | | | | | | The ENOTDIR mapping was introduced in r235266 for kern/128933 based on an interpretation of the somewhat ambiguous language in the POSIX realpath specification. The interpretation is inconsistent with Solaris and Linux, a regression from 9.0, and does not appear to be permitted by the description of ENOTDIR: 20 ENOTDIR Not a directory. A component of the specified pathname existed, but it was not a directory, when a directory was expected. PR: standards/171577 MFC after: 3 days
* Add the same warning to rand48(3) as to rand(3) and random(3).des2012-09-111-1/+0
| | | | MFC after: 3 days
* Bump dates.des2012-09-042-2/+2
| | | | Reminded by: bz@
* Add a prominent warning about these functions' unsuitability fordes2012-09-042-13/+17
| | | | cryptographic purposes, and recommend using arc4random(3) instead.
* Make 'junk' volatile so that compilers won't be tempted to optimizekevlo2012-08-171-1/+1
| | | | | Reviewed by: ache MFC after: 3 days
* Update the 'C1x draft' reference to '.St -isoC-2011' mdoc macro.pluknet2012-07-262-2/+4
| | | | | Reviewed by: theraven MFC after: 1 week
* Remove end of line whitespace.joel2012-06-261-1/+1
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* Add more locale-specific functions to the relevant man pages andissyl02012-06-252-1/+19
| | | | | | | | | | Makefiles: - libc/stdtime/strftime.3 - libc/stdtime/strptime.3 - libc/stdlib/strfmon.3 Reviewed by: theraven Approved by: gabor (mentor)
* Switch from 4-clause to 2-clause BSD license. (OpenBSD r1.22)delphij2012-06-111-8/+1
| | | | | | No functional change. Obtained from: NetBSD via OpenBSD
* 1) Although unpublished version of standardache2012-06-051-17/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | http://austingroupbugs.net/view.php?id=385#c713 (Resolved state) recommend this way for the current standard (called "earlier" in the text) "However, earlier versions of this standard did not require this, and the same example had to be written as: // buf was obtained by malloc(buflen) ret = write(fd, buf, buflen); if (ret < 0) { int save = errno; free(buf); errno = save; return ret; } " from feedback I have for previous commit it seems that many people prefer to avoid mass code change needed for current standard compliance and prefer to track unpublished standard instead, which requires now that free() itself must save errno, not its usage code. So, I back out "save errno across free()" part of previous commit, and will fill PR for changing free() isntead. 2) Remove now unused serrno. MFC after: 1 week
* 1) IEEE Std 1003.1-2008, "errno" section, is explicit thatache2012-06-041-6/+16
| | | | | | | | | | | | | | | | | "The setting of errno after a successful call to a function is unspecified unless the description of that function specifies that errno shall not be modified." However, free() in IEEE Std 1003.1-2008 does not mention its interaction with errno, so MAY modify it after successful call (it depends on particular free() implementation, OS-specific, etc.). So, save errno across free() calls to make code portable and POSIX-conformant. 2) Remove unused serrno assignment. MFC after: 1 week
* General mdoc(7) and typo fixes.gjb2012-05-112-3/+4
| | | | | | PR: 167734 Submitted by: Nobuyuki Koganemaru (kogane!jp.freebsd.org) MFC after: 3 days
* According to SUSv4, realpath(3) must fail ifkib2012-05-112-12/+29
| | | | | | | | | | | | | | | | | [ENOENT] A component of file_name does not name an existing file or file_name points to an empty string. [ENOTDIR] A component of the path prefix is not a directory, or the file_name argument contains at least one non- <slash> character and ends with one or more trailing <slash> characters and the last pathname component names an existing file that is neither a directory nor a symbolic link to a directory. Add checks for the listed conditions, and set errno accordingly. Update the realpath(3) manpage to mention SUS behaviour. Remove the requirement to include sys/param.h before stdlib.h. PR: 128933 MFC after: 3 weeks
* Import jemalloc 9ef7f5dc34ff02f50d401e41c8d9a4a928e7c2aa (dev branch,jasone2012-04-1711-8241/+167
| | | | | | | | prior to 3.0.0 release) as contrib/jemalloc, and integrate it into libc. The code being imported by this commit diverged from lib/libc/stdlib/malloc.c in March 2010, which means that a portion of the jemalloc 1.0.0 ChangeLog entries are relevant, as are the entries for all subsequent releases.
* Remove trailing whitespace per mdoc lint warningeadler2012-03-292-7/+7
| | | | | | | Disussed with: gavin No objection from: doc Approved by: joel MFC after: 3 days
* Add aligned_alloc(3).ed2012-01-094-9/+55
| | | | | | | | | The C11 folks reinvented the wheel by introducing an aligned version of malloc(3) called aligned_alloc(3), instead of posix_memalign(3). Instead of returning the allocation by reference, it returns the address, just like malloc(3). Reviewed by: jasone@
* Properly sort functions by name.ed2012-01-081-3/+3
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* Add missing opening and closing brackets in getopt_long.3 and getsubopt.3gjb2011-12-262-3/+6
| | | | | | | to make the examples reflect reality more closely. MFC after: 1 week X-MFC-After: 9.0-RELEASE
* Since clang does not support the tls_model attribute used in malloc.cdim2011-12-151-2/+10
| | | | | | | yet (see LLVM PR 9788), and warns about it, rub it out for now. When clang grows support for this attribute, I will revert this again. MFC after: 1 week
* Small style(9) improvements.theraven2011-12-151-2/+4
| | | | Approved by: dim (mentor)
* Some fixes to the man pages for [at_]quick_exit(3)theraven2011-12-072-12/+17
| | | | | Reviewed by: pluknet Approved by: dim (mentor)
* style(9) cleanups.theraven2011-12-071-10/+7
| | | | Approved by: brooks (mentor)
* Implement quick_exit() / at_quick_exit() from C++11 / C1x. Also add atheraven2011-12-077-3/+204
| | | | | | | | | | | | | | | | __noreturn macro and modify the other exiting functions to use it. The __noreturn macro, unlike __dead2, must be used BEFORE the function. This is in line with the C and C++ specifications that place _Noreturn (c1x) and [[noreturn]] (C++11) in front of the functions. As with __dead2, this macro falls back to using the GCC attribute. Unfortunately, clang currently sets the same value for the C version macro in C99 and C1x modes, so these functions are hidden by default. At some point before 10.0, I need to go through the headers and clean up the C1x / C++11 visibility. Reviewed by: brooks (mentor)
* Implement xlocale APIs from Darwin, mainly for use by libc++. This adds atheraven2011-11-2012-20/+203
| | | | | | | | | | | | load of _l suffixed versions of various standard library functions that use the global locale, making them take an explicit locale parameter. Also adds support for per-thread locales. This work was funded by the FreeBSD Foundation. Please test any code you have that uses the C standard locale functions! Reviewed by: das (gdtoa changes) Approved by: dim (mentor)
* Fix a warning emitted by Clang.ed2011-11-041-1/+2
| | | | | | The size passed to strlcat() must depend on the input length, not the output length. Because the input and output buffers are equal in size, the resulting binary does not change at all.
* Fix building of 32-bit compat libraries on amd64 with clang, and usingdim2011-07-181-4/+0
| | | | | | | | | | | | | | -g, by reverting r219139. The LLVM PR referenced in that revision was fixed in the mean time, and we imported a clang snapshot soon afterwards, so the temporary workaround of disabling clang's integrated assembler is no longer needed. In this particular case, using e.g. DEBUG_FLAGS=-g causes clang to output certain directives into assembly that our version of GNU as chokes on. Reported by: dougb Approved by: re (kib)
* Fix whitespace inconsistencies in libc in files copyrighted by me.ed2011-06-261-1/+1
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* Change sparc64 to use the initial exec TLS model, too. This avoids randommarius2011-06-211-1/+1
| | | | assertion failures in _malloc_thread_cleanup().
* Don't add sigwait.c to MISRCS here when sigwait.c lives under ../sys andmarcel2011-03-171-1/+1
| | | | it's already added to SRCS there.
* Now that TLS generally is available on sparc64 since r219534 turn onmarius2011-03-111-1/+1
| | | | | | support for it. Note that while sparc64 also supports the static TLS model and thus tls_model("initial-exec"), using the default model turned out to yield slightly better buildstone performance.
* Correct a typo in the malloc(3) manpage. Malloc options are set in therstone2011-03-071-2/+2
| | | | | | | MALLOC_OPTIONS environment variable, not JEMALLOC_OPTIONS. Reviewed by: jasone Approved by: emaste (mentor)
* Put in a temporary workaround for ctfmerge hanging on processingdim2011-03-011-0/+4
| | | | | | | | | | | | | | | | kernel.debug (or possibly other files), when WITH_CTF is active. This is caused by a bug in clang's integrated assembler, causing malloc to sometimes hang during initialization in statically linked executables that use threading, such as the copy of ctfmerge that is built during the bootstrap stage of buildworld. The bug has been submitted upstream: http://llvm.org/bugs/show_bug.cgi?id=9352 Note that you might have to rebuild and install libc first, to get your kernel build to finish, because the ctfmerge binary built during bootstrap is linked with your base system's copy of libc.a, which might already contain a bad copy of malloc.o.
* Fix some style(9) issues.kib2011-01-081-4/+5
| | | | | | | Do not use strlcpy() where simple assignment is enough. Noted by: bde (long time ago) MFC after: 1 week
* Revert to r214147, errno is not clobbered as originallybcr2010-10-221-2/+0
| | | | thought.
* Document strtonum()s behavior of setting errno to 0 when no error is found.bcr2010-10-211-0/+2
| | | | | | | PR: docs/143330 Submitted by: Efstratios Karatzas (gpf dot kira at gmail dot com) Discussed with: ru@ MFC after: 7 days
* Sync with OpenBSD rev. 1.13:bcr2010-10-211-2/+1
| | | | | | | | strtonum does not require limits.h Obtained from: OpenBSD Discussed with: ru@ MFC after: 5 days
* mdoc: drop redundant .Pp and .LP callsuqs2010-10-082-2/+0
| | | | They have no effect when coming in pairs, or before .Bl/.Bd
* Missed space.kib2010-10-061-1/+1
| | | | | Submitted by: brueffer MFC after: 1 week
* Add cross-references to lrand48(3) and arc4random(3) from rand(3)kib2010-10-062-1/+11
| | | | | | | and random(3). Submitted by: Valentin Nechayev <netch netch kiev ua> MFC after: 1 week
* Revert changes of 'assure' to 'ensure' made in r211936.brucec2010-09-111-2/+2
| | | | Approved by: rrs (mentor)
* Because POSIX does not allow EINTR to be returned from sigwait(),davidxu2010-09-101-1/+1
| | | | | | | | add a wrapper for it in libc and rework the code in libthr, the system call still can return EINTR, we keep this feature. Discussed on: thread Reviewed by: jilles
* Fix incorrect usage of 'assure' and 'insure'.brucec2010-08-281-2/+2
| | | | Approved by: rrs (mentor)
* Do not call __pthread_cxa_finalize with invalid struct dl_phdr_info.kib2010-08-271-1/+1
| | | | | Reported and tested by: Fabian Keil <freebsd-listen fabiankeil de> MFC after: 17 days
* Powerpc is special here. powerpc and powerpc64 use different ABIs, soimp2010-08-241-2/+2
| | | | | | their implementations aren't in the same files. Introduce LIBC_ARCH and use that in preference to MACHINE_CPUARCH. Tested by amd64 and powerpc64 builds (thanks nathanw@)
* MFtbemd:imp2010-08-231-2/+2
| | | | | Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want to test of all the CPUs of a given family conform.
* On shared object unload, in __cxa_finalize, call and clear all installedkib2010-08-231-3/+20
| | | | | | | | | | | | | | | | | | | | | | atexit and __cxa_atexit handlers that are either installed by unloaded dso, or points to the functions provided by the dso. Use _rtld_addr_phdr to locate segment information from the address of private variable belonging to the dso, supplied by crtstuff.c. Provide utility function __elf_phdr_match_addr to do the match of address against dso executable segment. Call back into libthr from __cxa_finalize using weak __pthread_cxa_finalize symbol to remove any atfork handler which function points into unloaded object. The rtld needs private __pthread_cxa_finalize symbol to not require resolution of the weak undefined symbol at initialization time. This cannot work, since rtld is relocated before sym_zero is set up. Idea by: kan Reviewed by: kan (previous version) MFC after: 3 weeks
* Style.kib2010-08-231-2/+2
| | | | MFC after: 3 days
* Use aux vector to get values for SSP canary, pagesize, pagesizes array,kib2010-08-171-7/+16
| | | | | | | | | | | number of host CPUs and osreldate. This eliminates the last sysctl(2) calls from the dynamically linked image startup. No objections from: kan Tested by: marius (sparc64) MFC after: 1 month
* Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki whilejoel2010-08-161-2/+2
| | | | | | translating these manual pages. Minor corrections by me. Submitted by: Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>
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