| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | simplify pthread_attr_t stack/guard size representation•••previously, the pthread_attr_t object was always initialized all-zero,
and stack/guard size were represented as differences versus their
defaults. this required lots of confusing offset arithmetic everywhere
they were used. instead, have pthread_attr_init fill in the default
values, and work with absolute sizes everywhere.
| Rich Felker | 2016-11-07 | 1 | -2/+2 |
| * | support configurable page size on mips, powerpc and microblaze•••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.
| Szabolcs Nagy | 2013-09-15 | 1 | -0/+1 |
| * | in pthread_getattr_np, use mremap rather than madvise to measure stack•••the original motivation for this patch was that qemu (and possibly
other syscall emulators) nop out madvise, resulting in an infinite
loop. however, there is another benefit to this change: madvise may
actually undo an explicit madvise the application intended for its
stack, whereas the mremap operation is a true nop. the logic here is
that mremap must fail if it cannot resize the mapping in-place, and
the caller knows that it cannot resize in-place because it knows the
next page of virtual memory is already occupied.
| Rich Felker | 2013-07-31 | 1 | -1/+2 |
| * | implement pthread_getattr_np•••this function is mainly (purely?) for obtaining stack address
information, but we also provide the detach state since it's easy to
do anyway.
| Rich Felker | 2013-03-31 | 1 | -0/+21 |
