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* Remove spurious "union arg" from printf.hphk2006-02-041-2/+3
| | | | Make sure to always print something in the alternate time format.
* Fix calculation of the number of arenas to use on multi-processor systems.jasone2006-02-041-1/+1
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* Expand contractions.joel2006-02-011-1/+1
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* Add missing 's' suffix on alternate rendition of time.phk2006-01-311-1/+1
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* - In pipe() return the error returned by pipe_create(), rather thenglebius2006-01-301-1/+3
| | | | | | | | hardcoded ENFILES, which is incorrect. pipe_create() can fail due to ENOMEM. - Update manual page, describing ENOMEM return code. Reviewed by: arch
* If the sysctl kern.pts.enable doesn't exist, check that /dev/ptmx is there,cognet2006-01-291-2/+7
| | | | | | and if so, use the pts system. Suggested by: rwatson
* Remove unwarranted uses of 'goto'.jasone2006-01-271-203/+153
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* Add NO_MALLOC_EXTRAS, so that various extra features that can causejasone2006-01-271-3/+16
| | | | | | | | | performance degradation can be disabled via something like the following in /etc/malloc.conf: CFLAGS+=-DNO_MALLOC_EXTRAS Suggested by: deischen
* Fix the type of a statistics counter (unsigned --> unsigned long).jasone2006-01-271-1/+1
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* Clean up statistics gathering and printing.jasone2006-01-271-71/+64
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* Remove debug printf.pjd2006-01-261-1/+0
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* Optimize arena_bin_pop() to reduce the number of separator operations.jasone2006-01-261-13/+10
| | | | | | | | Remove the block of code that tries to use delayed regions in LIFO order, since from a policy perspective, it conflicts with LRU caching of newly coalesced regions in arena_undelay(). There are numerous policy alternatives, and it isn't readily obvious which (if any) is superior; this change at least has the virtue of being consistent with policy.
* Make getttyent() report what the pts ptys as well.cognet2006-01-261-1/+38
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* ptsname() bits for pts.cognet2006-01-261-5/+45
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* Make the %V{is} extension handle a NULL pointer like %s does: output "(null)"phk2006-01-255-1/+187
| | | | | | | | | | | | | Add %M{essage} extension which prints an errno value as the corresponding string if possible or numerically otherwise. It is not currently possible to do the syslog(3) like %m extension because errno would need to get capatured on entry to the first function in the printf family, so %M requires you to supply errno as an argument. Add %Q{uote} extension which will print a string in double quotes with appropriate back-slash escapes (only) if necessary.
* Remove a redundant variable assignment in arena_reg_frag_alloc().jasone2006-01-251-1/+0
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* If no coalesced exact-fit small regions are available, but delayed exact-jasone2006-01-251-173/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fit regions are available, use the delayed regions in LIFO order, in order to increase locality of reference. We might expect this to cause delayed regions to be removed from the delay ring buffer more often (since we're now re-using more recently buffered regions), but numerous tests indicate that the overall impact on memory usage tends to be good (reduced fragmentation). Re-work arena_frag_reg_alloc() so that when large free regions are exhausted, it uses small regions in a way that favors contiguous allocation of sequentially allocated small regions. Use arena_frag_reg_alloc() in this capacity, rather than directly attempting over-fitting of small requests when no large regions are available. Remove the bin overfit statistic, since it is no longer relevant due to the arena_frag_reg_alloc() changes. Do not specify arena_frag_reg_alloc() as an inline function. It is too large to benefit much from being inlined, and it is also called in two places, only one of which is in the critical path (the other call bloated arena_reg_alloc()). Call arena_coalesce() for a region before caching it with arena_mru_cache(). Add assertions that detect the attempted caching of adjacent free regions, so that we notice this problem when it is first created, rather than in arena_coalesce(), when it's too late to know how the problem arose. Reported by: Hans Blancke
* Make the 'C' and 'c' malloc options consistent with other options; 'C'jasone2006-01-231-2/+2
| | | | doubles the cache size, and 'c' halves the cache size.
* In arena_chunk_reg_alloc(), try to avoid touching the last page in thejasone2006-01-231-7/+24
| | | | | chunk during initialization, in order to avoid physically backing the page unless data are allocated there.
* Back out the previous change to rename.2. The previous rename()truckman2006-01-223-9/+8
| | | | | | | | | | | | | | behaviour of returning EINVAL when ".." is passed as either argument has been restored. rmdir("..") now returns EINVAL instead of EPERM. Document the previously undocumented behaviour of rmdir(".") returning EINVAL as required by POSIX and SUSv3. Bump the man page change date. undelete("..") now returns EINVAL instead of EPERM. Bump the man page change date. MFC after: 3 days
* rename(), rmdir(), and undelete() fail with EPERM if the last componenttruckman2006-01-213-0/+9
| | | | | | of the path is "..". MFC after: 3 days
* Use uintptr_t rather than size_t when casting pointers to integers. Also,jasone2006-01-201-44/+45
| | | | | | | fix the few remaining casting style(9) errors that remained after the functional change. Reported by: jmallett
* Revert addtion of assertions in revision 1.99. These assertions causejasone2006-01-191-7/+0
| | | | | | problems in cases where regions are faked up for the purposes of red-black tree searches, since those faked region headers reside on the stack, rather than in a malloc chunk.
* Add assertions that detect some forms of region separator corruption.jasone2006-01-191-0/+7
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* Remove loops in arena_coalesce(). They are no longer necessary, now thatjasone2006-01-191-4/+5
| | | | | internal allocation does not rely on recursive arena use (base_arena was removed in revision 1.95).
* Make all internal variables and functions static.jasone2006-01-191-12/+15
| | | | Reported by: ache
* Return NULL if there is an OOM error during initialization, rather thanjasone2006-01-191-35/+50
| | | | | | | | allowing the error to be fatal. Move a label in order to make sure to properly handle errors in malloc(0). Reported by: Alastair D'Silva, Saneto Takanori
* Add a separate simple internal base allocator and remove base_arena, so thatjasone2006-01-161-151/+175
| | | | | | | | | | there is never any need to recursively call the main allocation functions. Remove recursive spinlock support, since it is no longer needed. Allow chunks to be as small as the page size. Correctly propagate OOM errors from arena_new().
* Define NO_TLS on ia64. The dynamic TLS implementation on ia64 ismarcel2006-01-161-0/+1
| | | | | | | | | broken for non-threaded shared processes in that __tls_get_addr() assumes the thread pointer is always initialized. This is not the case. When arenas_map is referenced in choose_arena() and it is defined as a thread-local variable, it will result in a SIGSEGV. PR: ia64/91846 (describes the TLS/ia64 bug).
* Replace malloc(), calloc(), posix_memalign(), realloc(), and free() withjasone2006-01-132-1107/+4597
| | | | | | | a scalable concurrent allocator implementation. Reviewed by: current@ Approved by: phk, markm (mentor)
* Fix a bitwise logic error in posix_memalign().jasone2006-01-121-2/+2
| | | | Reported by: glebius
* Use posix_memalign() in valloc() rather than making assumptions aboutjasone2006-01-122-20/+20
| | | | | | the alignment of malloc()ed memory. Approved by: markm (mentor)
* In preparation for a new malloc implementation:jasone2006-01-125-66/+160
| | | | | | | | | | | | | * Add posix_memalign(). * Move calloc() from calloc.c to malloc.c. Add a calloc() implementation in rtld-elf in order to make the loader happy (even though calloc() isn't used in rtld-elf). * Add _malloc_prefork() and _malloc_postfork(), and use them instead of directly manipulating __malloc_lock. Approved by: phk, markm (mentor)
* I wrote getnetconfig where I meant getnetpath in the previous revision.ceri2006-01-111-2/+2
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* Add references to fhopen, fhstat, getfh, lgetfh and fhstatfs.grog2006-01-103-0/+6
| | | | Pointed out by: Antony Curtis <antony@mysql.com>
* o Document the possibility of putting 'b' in the flag field.ceri2006-01-061-5/+11
| | | | | | | While we don't use the NC_BROADCAST value of nc_flag anywhere in the RPC code, it is parseable by getnetconfigent(3) from /etc/netconfig. o Clean up some "see below"'s that were cut and pasted from netconfig.h.
* Document the recently-added EINVAL behavior.dds2006-01-051-1/+7
| | | | MFC after: 1 week
* gmon now supported on powerpcgrehan2005-12-291-2/+0
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* The minbrk symbol is hidden the same on powerpc as other FreeBSD platforms.grehan2005-12-291-1/+1
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* Add a64l(), l64a(), and l64a_r() XSI extentions. These functions converttrhodes2005-12-244-5/+290
| | | | | | | | between a 32-bit integer and a radix-64 ASCII string. The l64a_r() function is a NetBSD addition. PR: 51209 (based on submission, but very different) Reviewed by: bde, ru
* Add abort2 manual page.phk2005-12-232-1/+100
| | | | | Submitted by: "Wojciech A. Koszek" <dunstan@freebsd.czest.pl> Edited by: phk
* Explicitely use a "signed char" instead of a "char", for those archs wherecognet2005-12-221-2/+2
| | | | char defaults to unsigned.
* Implement ELF symbol versioning using GNU semantics. This code aimskan2005-12-181-0/+9
| | | | | | | | | to be compatible with symbol versioning support as implemented by GNU libc and documented by http://people.redhat.com/~drepper/symbol-versioning and LSB 3.0. Implement dlvsym() function to allow lookups for a specific version of a given symbol.
* Make our ELF64 type definitions match standards. In particular thismarcel2005-12-181-3/+3
| | | | | | | | | | | | | means: o Remove Elf64_Quarter, o Redefine Elf64_Half to be 16-bit, o Redefine Elf64_Word to be 32-bit, o Add Elf64_Xword and Elf64_Sxword for 64-bit entities, o Use Elf_Size in MI code to abstract the difference between Elf32_Word and Elf64_Word. o Add Elf_Ssize as the signed counterpart of Elf_Size. MFC after: 2 weeks
* Add an extensible version of our *printf(3) implementation to libcphk2005-12-169-0/+2054
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | on probationary terms: it may go away again if it transpires it is a bad idea. This extensible printf version will only be used if either environment variable USE_XPRINTF is defined or one of the extension functions are called. or the global variable __use_xprintf is set greater than zero. In all other cases our traditional printf implementation will be used. The extensible version is slower than the default printf, mostly because less opportunity for combining I/O operation exists when faced with extensions. The default printf on the other hand is a bad case of spaghetti code. The extension API has a GLIBC compatible part and a FreeBSD version of same. The FreeBSD version exists because the GLIBC version may run afoul of our FILE * locking in multithreaded programs and it even further eliminate the opportunities for combining I/O operations. Include three demo extensions which can be enabled if desired: time (%T), hexdump (%H) and strvis (%V). %T can format time_t (%T), struct timeval (%lT) and struct timespec (%llT) in one of two human readable duration formats: "%.3llT" -> "20349.245" "%#.3llT" -> "5h39m9.245" %H will hexdump a sequence of bytes and takes a pointer and a length argument. The width specifies number of bytes per line. "%4H" -> "65 72 20 65" "%+4H" -> "0000 65 72 20 65" "%#4H" -> "65 72 20 65 |er e|" "%+#4H" -> "0000 65 72 20 65 |er e|" %V will dump a string in strvis format. "%V" -> "Hello\tWor\377ld" (C-style) "%0V" -> "Hello\011Wor\377ld" (octal) "%+V" -> "Hello%09Wor%FFld" (http-style) Tests, comments, bugreports etc are most welcome.
* With current pthread implementations, a mutex initialization willdavidxu2005-12-163-9/+19
| | | | | | | | | | | | allocate a memory block. sscanf calls __svfscanf which in turn calls fread, fread triggers mutex initialization but the mutex is not destroyed in sscanf, this leads to memory leak. To avoid the memory leak and performance issue, we create a none MT-safe version of fread: __fread, and instead let __svfscanf call __fread. PR: threads/90392 Patch submitted by: dhartmei MFC after: 7 days
* Sort .Xr by section number.davidxu2005-12-138-14/+14
| | | | Submitted by: ru
* /* You're not supposed to hit this problem */phk2005-12-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For some denormalized long double values, a bug in __hldtoa() (called from *printf()'s %A format) results in a base 16 digit being rounded up from 0xf to 0x10. When this digit is subsequently converted to string format, an index of 10 reaches past the end of the uppper-case hex/char array, picking up whatever the code segment happen to contain at that address. This mostly seem to be some character from the upper half of the byte range. When using the %a format instead of %A, the first character past the end of the lowercase hex/char table happens to be index 0 in the uppercase hex/char table hextable and therefore the string representation features a '0', which is supposedly correct. This leads me to belive that the proper fix _may_ be as simple as masking all but the lower four bits off after incrementing a hex-digit in libc/gdtoa/_hdtoa.c:roundup(). I worry however that the upper bit in 0x10 indicates a carry not carried. Until das@ or bde@ finds time to visit this issue, extend the hexdigit arrays with a 17th index containing '?' so that we get a invalid but consistent and printable output in both %a and %A formats whenever this bug strikes. This unmasks the bug in the %a format therefore solving the real issue may both become easier and more urgent. Possibly related to: PR 85080 With help by: bde@
* Add cross references to siginfo.3.davidxu2005-12-1310-3/+13
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* Fix markeup.davidxu2005-12-061-1/+2
| | | | Submitted by: ru
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