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* add _SC_PHYS_PAGES and _SC_AVPHYS_PAGES extentions to sysconfRich Felker2014-04-151-2/+17
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* in sysconf, use getrlimit function rather than raw syscall for rlimitsRich Felker2014-04-151-3/+3
| | | | | | the syscall is deprecated (replaced by prlimit64) and does not work correctly on x32. this change mildly increases size, but is likely needed anyway for newer archs that might omit deprecated syscalls.
* avoid linear-time if/else special cases in sysconfRich Felker2014-04-151-20/+35
| | | | | | | the previous handling of cases that could not fit in the 16-bit table or which required non-constant results was extremely ugly and could not scale. the new code remaps these keys into a contiguous range that's efficient for a switch statement.
* fix confstr return valueTimo Teräs2014-03-241-1/+1
| | | | per the specification, the terminating null byte is counted.
* correct the sysconf value for RTSIG_MAXRich Felker2013-09-201-1/+2
| | | | | this is the number of realtime signals available, not the maximum signal number or total number of signals.
* support configurable page size on mips, powerpc and microblazeSzabolcs Nagy2013-09-152-6/+9
| | | | | | | | | | | | | | | | PAGE_SIZE was hardcoded to 4096, which is historically what most systems use, but on several archs it is a kernel config parameter, user space can only know it at execution time from the aux vector. PAGE_SIZE and PAGESIZE are not defined on archs where page size is a runtime parameter, applications should use sysconf(_SC_PAGE_SIZE) to query it. Internally libc code defines PAGE_SIZE to libc.page_size, which is set to aux[AT_PAGESZ] in __init_libc and early in __dynlink as well. (Note that libc.page_size can be accessed without GOT, ie. before relocations are done) Some fpathconf settings are hardcoded to 4096, these should be actually queried from the filesystem using statfs.
* fix overflow in sysconf for _SC_MQ_PRIO_MAXRich Felker2013-09-141-1/+2
| | | | the value of MQ_PRIO_MAX does not fit, so it needs to use OFLOW.
* a few more fixes for unistd/sysconf feature reportingRich Felker2013-07-271-7/+7
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* report presence of ADV and MSG options in unistd.h and sysconfRich Felker2013-07-261-2/+2
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* report that posix_spawn is supported in unistd.h and sysconfRich Felker2013-07-261-1/+1
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* document in sysconf and unistd.h that per-thread cpu clocks existRich Felker2013-06-261-1/+1
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* report support of TPS option in unistd.h and sysconfRich Felker2012-11-111-2/+2
| | | | also update another newish feature in sysconf, stackaddr
* let sysconf accurately report # of cpus availableRich Felker2012-05-131-2/+10
| | | | | i've been trying out openmp and it seems like it won't be much use without this...
* fix broken sysconf when correct value is -1Rich Felker2012-04-211-1/+1
| | | | | this caused glib to try to allocate >2gb for getpwnam_r, and probably numerous other problems.
* sysconf support for dynamic limits (open files and processes)Rich Felker2012-03-221-2/+9
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* sysconf for PTHREAD_KEYS_MAXRich Felker2011-10-031-1/+1
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* in pathconf, -1, not 0, means unsupported.. syncio presumably works, too.Rich Felker2011-08-161-3/+3
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* fix bogus pathconf result for file size bitsRich Felker2011-08-161-1/+1
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* define MQ_PRIO_MAXRich Felker2011-06-071-1/+1
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* better fix sysconf pthread stack minRich Felker2011-04-081-1/+1
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* consistency with pthread stack min in limits.hRich Felker2011-04-081-1/+1
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* fix sem_open and sem_close to obey posix semanticsRich Felker2011-03-101-5/+5
| | | | | | | | | multiple opens of the same named semaphore must return the same pointer, and only the last close can unmap it. thus the ugly global state keeping track of mappings. the maximum number of distinct named semaphores that can be opened is limited sufficiently small that the linear searches take trivial time, especially compared to the syscall overhead of these functions.
* put confstr.c with the other conf functionsRich Felker2011-02-141-0/+17
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* initial check-in, version 0.5.0 v0.5.0Rich Felker2011-02-123-0/+263
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