| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | workaround gcc got-register-reload performance problems in malloc•••with this patch, the malloc in libc.so built with -Os is nearly the
same speed as the one built with -O3. thus it solves the performance
regression that resulted from removing the forced -O3 when building
libc.so; now libc.so can be both small and fast.
| Rich Felker | 2012-09-14 | 1 | -4/+8 |
| * | use vfork if possible in posix_spawn•••vfork is implemented as the fork syscall (with no atfork handlers run)
on archs where it is not available, so this change does not introduce
any change in behavior or regression for such archs.
| Rich Felker | 2012-09-14 | 1 | -1/+3 |
| * | asm for memmove on i386 and x86_64•••for the sake of simplicity, I've only used rep movsb rather than
breaking up the copy for using rep movsd/q. on all modern cpus, this
seems to be fine, but if there are performance problems, there might
be a need to go back and add support for rep movsd/q.
| Rich Felker | 2012-09-10 | 2 | -0/+36 |
| * | fix another ppoll issue (missing sigset_t size argument) | Rich Felker | 2012-09-10 | 1 | -1/+1 |
| * | reenable word-at-at-time copying in memmove•••before restrict was added, memove called memcpy for forward copies and
used a byte-at-a-time loop for reverse copies. this was changed to
avoid invoking UB now that memcpy has an undefined copying order,
making memmove considerably slower.
performance is still rather bad, so I'll be adding asm soon.
| Rich Felker | 2012-09-10 | 1 | -4/+27 |
| * | fix ppoll with null timeout argument | Rich Felker | 2012-09-10 | 1 | -2/+2 |
| * | add setdomainname syscall, fix getdomainname (previously a stub) | Rich Felker | 2012-09-09 | 2 | -1/+17 |
| * | mincore syscall wrapper | Rich Felker | 2012-09-09 | 1 | -0/+8 |
| * | fix up lfs64 junk for preadv/pwritev | Rich Felker | 2012-09-09 | 2 | -2/+2 |
| * | add preadv/pwritev syscall wrappers | Rich Felker | 2012-09-09 | 2 | -0/+26 |
| * | add linux ppoll syscall wrapper | Rich Felker | 2012-09-09 | 1 | -0/+9 |
| * | reenable sync_file_range; should no longer break on mips | Rich Felker | 2012-09-09 | 1 | -2/+2 |
| * | add 7-arg syscall support for mips•••no syscalls actually use that many arguments; the issue is that some
syscalls with 64-bit arguments have them ordered badly so that
breaking them into aligned 32-bit half-arguments wastes slots with
padding, and a 7th slot is needed for the last argument.
| Rich Felker | 2012-09-09 | 2 | -4/+8 |
| * | fix mips syscall_cp_asm code (saved register usage) | Rich Felker | 2012-09-09 | 1 | -2/+2 |
| * | fix broken mips syscall asm•••this code was using $10 to save the syscall number, but $10 is not
necessarily preserved by the kernel across syscalls. only mattered for
syscalls that got interrupted by a signal and restarted. as far as i
can tell, $25 is preserved by the kernel across syscalls.
| Rich Felker | 2012-09-09 | 1 | -2/+2 |
| * | disable sync_file_range for now•••something is wrong with the logic for the argument layout, resulting
in compile errors on mips due to too many args to syscall... further
information on how it's supposed to work will be needed before it can
be reactivated.
| Rich Felker | 2012-09-08 | 1 | -2/+3 |
| * | syscall organization overhaul•••now public syscall.h only exposes __NR_* and SYS_* constants and the
variadic syscall function. no macros or inline functions, no
__syscall_ret or other internal details, no 16-/32-bit legacy syscall
renaming, etc. this logic has all been moved to src/internal/syscall.h
with the arch-specific parts in arch/$(ARCH)/syscall_arch.h, and the
amount of arch-specific stuff has been reduced to a minimum.
changes still need to be reviewed/double-checked. minimal testing on
i386 and mips has already been performed.
| Rich Felker | 2012-09-08 | 1 | -5/+138 |
| * | add acct syscall source file, omitted in last syscalls commit | Rich Felker | 2012-09-08 | 1 | -0/+9 |
| * | add acct, accept4, setns, and dup3 syscalls (linux extensions)•••based on patch by Justin Cormack
| Rich Felker | 2012-09-08 | 3 | -0/+28 |
| * | add linux tee syscall | Rich Felker | 2012-09-08 | 1 | -0/+8 |
| * | add linux sync_file_range syscall | Rich Felker | 2012-09-08 | 1 | -0/+16 |
| * | move fallocate syscall wrapper to linux-specific syscalls dir | Rich Felker | 2012-09-08 | 1 | -0/+0 |
| * | add linux readahead syscall | Rich Felker | 2012-09-08 | 1 | -0/+8 |
| * | add fallocate (nonstandardized) function•••this is equivalent to posix_fallocate except that it has an extra
mode/flags argument to control its behavior, and stores the error in
errno rather than returning an error code.
| Rich Felker | 2012-09-08 | 1 | -0/+9 |
| * | fix broken fallocate syscall in posix_fallocate•••the syscall takes an extra flag argument which should be zero to meet
the POSIX requirements.
| Rich Felker | 2012-09-08 | 1 | -1/+1 |
| * | add timerfd interfaces (untested) | Rich Felker | 2012-09-08 | 1 | -0/+17 |
| * | cleanup src/linux and src/misc trees, etc.•••previously, it was pretty much random which one of these trees a given
function appeared in. they have now been organized into:
src/linux: non-POSIX linux syscalls (possibly shard with other nixen)
src/legacy: various obsolete/legacy functions, mostly wrappers
src/misc: still mostly uncategorized; some misc POSIX, some nonstd
src/crypt: crypt hash functions
further cleanup will be done later.
| Rich Felker | 2012-09-07 | 45 | -98/+74 |
| * | fix constraint violation in ftw•••void* does not implicitly convert to function pointer types.
| Rich Felker | 2012-09-06 | 1 | -1/+4 |
| * | further use of _Noreturn, for non-plain-C functions•••note that POSIX does not specify these functions as _Noreturn, because
POSIX is aligned with C99, not the new C11 standard. when POSIX is
eventually updated to C11, it will almost surely give these functions
the _Noreturn attribute. for now, the actual _Noreturn keyword is not
used anyway when compiling with a c99 compiler, which is what POSIX
requires; the GCC __attribute__ is used instead if it's available,
however.
in a few places, I've added infinite for loops at the end of _Noreturn
functions to silence compiler warnings. presumably
__buildin_unreachable could achieve the same thing, but it would only
work on newer GCCs and would not be portable. the loops should have
near-zero code size cost anyway.
like the previous _Noreturn commit, this one is based on patches
contributed by philomath.
| Rich Felker | 2012-09-06 | 6 | -10/+10 |
| * | fix invalid implicit pointer conversion in gnulib-compat functions | Rich Felker | 2012-09-06 | 1 | -1/+1 |
| * | add _Noreturn function attribute, with fallback for pre-C11 GNUC | Rich Felker | 2012-09-06 | 4 | -4/+4 |
| * | use restrict everywhere it's required by c99 and/or posix 2008•••to deal with the fact that the public headers may be used with pre-c99
compilers, __restrict is used in place of restrict, and defined
appropriately for any supported compiler. we also avoid the form
[restrict] since older versions of gcc rejected it due to a bug in the
original c99 standard, and instead use the form *restrict.
| Rich Felker | 2012-09-06 | 164 | -198/+199 |
| * | remove dependency of wmemmove on wmemcpy direction•••unlike the memmove commit, this one should be fine to leave in place.
wmemmove is not performance-critical, and even if it were, it's
already copying whole 32-bit words at a time instead of bytes.
| Rich Felker | 2012-09-06 | 1 | -4/+4 |
| * | remove dependency of memmove on memcpy direction•••this commit introduces a performance regression in many uses of
memmove, which will need to be addressed before the next release. i'm
making it as a temporary measure so that the restrict patch can be
committed without invoking undefined behavior when memmove calls
memcpy with overlapping regions.
| Rich Felker | 2012-09-06 | 1 | -5/+4 |
| * | fix broken ttyname[_r] (failure to null-terminate result) | Rich Felker | 2012-09-06 | 1 | -1/+4 |
| * | fix missing statics in crypt_sha256 code | Rich Felker | 2012-08-30 | 1 | -3/+3 |
| * | anti-DoS rounds count limits for blowfish and des crypt•••all of the limits could use review, but err on the side of avoiding
excessive rounds for now.
| Rich Felker | 2012-08-29 | 2 | -2/+2 |
| * | limit sha512 rounds to similar runtime to sha256 limit•••these limits could definitely use review, but for now, i feel
consistency and erring on the side of preventing servers from getting
bogged down by excessively-slow user-provided settings (think
.htpasswd) are the best policy. blowfish should be updated to match.
| Rich Felker | 2012-08-29 | 1 | -1/+1 |
| * | add sha256/sha512 crypt•••based on versions sent to the list by nsz, with some simplification
and debloating. i'd still like to get them a bit smaller, or ideally
merge them into a single file with most of the code being shared, but
that can be done later.
| Rich Felker | 2012-08-29 | 4 | -1/+700 |
| * | fix bug caused by main app & libc having map set; cannot free them | Rich Felker | 2012-08-27 | 1 | -1/+1 |
| * | dladdr support for dynamic linker (nonstandard extension)•••based on patches submitted by boris brezillon. this commit also fixes
the issue whereby the main application and libc don't have the address
ranges of their mappings stored, which was theoretically a problem for
RTLD_NEXT support in dlsym; it didn't actually matter because libc
never calls dlsym, and it seemed to be doing the right thing (by
chance) for symbols in the main program as well.
| Rich Felker | 2012-08-26 | 2 | -0/+95 |
| * | implement "low hanging fruit" from C11•••based on Gregor's patch sent to the list. includes:
- stdalign.h
- removing gets in C11 mode
- adding aligned_alloc and adjusting other functions to use it
- adding 'x' flag to fopen for exclusive mode
| Rich Felker | 2012-08-25 | 4 | -49/+57 |
| * | add c11 quick_exit and at_quick_exit functions | Rich Felker | 2012-08-25 | 2 | -0/+44 |
| * | fix bug in gnu hash lookup on dlsym(handle, name) lookups•••wrong hash was being passed; just a copy/paste error. did not affect
lookups in the global namespace; this is probably why it was not
caught in testing.
| Rich Felker | 2012-08-25 | 1 | -1/+1 |
| * | clean up search_vec usage for vdso | Rich Felker | 2012-08-25 | 1 | -2/+2 |
| * | use new search_vec function to find vdso in dynamic linker | Rich Felker | 2012-08-25 | 1 | -4/+2 |
| * | ensure canary is setup if stack-prot libs are dlopen'd into non-ssp app•••previously, this usage could lead to a crash if the thread pointer was
still uninitialized, and otherwise would just cause the canary to be
zero (less secure).
| Rich Felker | 2012-08-25 | 2 | -2/+6 |
| * | add gnu hash support in the dynamic linker•••based on the patches contributed by boris brezillon.
| Rich Felker | 2012-08-25 | 1 | -12/+85 |
| * | optimize legacy ffs function | Rich Felker | 2012-08-23 | 1 | -4/+2 |
| * | fix bug whereby most atexit-registered functions got skipped | Rich Felker | 2012-08-19 | 1 | -3/+2 |
