| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | fix raise semantics with threads. | Rich Felker | 2011-03-09 | 1 | -1/+12 |
| * | simplify and optimize pthread_mutex_trylock | Rich Felker | 2011-03-08 | 1 | -17/+16 |
| * | rwlock trylock functions were wrongly returning EAGAIN instead of EBUSY | Rich Felker | 2011-03-08 | 2 | -3/+3 |
| * | fix major breakage in pthread_once (it was always deadlocking)•••the issue was a break statement that was breaking only from the
switch, not the enclosing for loop, and a failure to set the final
success state.
| Rich Felker | 2011-03-08 | 1 | -8/+7 |
| * | fix and optimize non-default-type mutex behavior•••problem 1: mutex type from the attribute was being ignored by
pthread_mutex_init, so recursive/errorchecking mutexes were never
being used at all.
problem 2: ownership of recursive mutexes was not being enforced at
unlock time.
| Rich Felker | 2011-03-08 | 4 | -25/+19 |
| * | implement pthread_mutexattr_[gs]etpshared functions | Rich Felker | 2011-03-08 | 2 | -0/+16 |
| * | disallow cpu time clocks as condattr clock values | Rich Felker | 2011-03-08 | 1 | -1/+1 |
| * | fix off-by-one error in sem_(timed)wait (using old sem value instead of new) | Rich Felker | 2011-03-07 | 1 | -1/+1 |
| * | use the selected clock from the condattr for pthread_cond_timedwait | Rich Felker | 2011-03-07 | 3 | -1/+3 |
| * | implement pthread_rwlockattr_* (essentially no-ops) | Rich Felker | 2011-03-07 | 4 | -0/+28 |
| * | implement pthread_condattr_* interfaces•••note that, while the attributes are stored, they are not used in
pthread_cond_init yet.
| Rich Felker | 2011-03-07 | 6 | -0/+45 |
| * | reject invalid attribute settings•••note that this is a pedantic conformance issue and waste of code. it
only affects broken code or code that is probing for conformance.
| Rich Felker | 2011-03-07 | 2 | -0/+2 |
| * | implement barrier attribute functions (essentially no-ops) | Rich Felker | 2011-03-07 | 4 | -0/+27 |
| * | enforce stack size min in pthread_attr_setstacksize | Rich Felker | 2011-03-04 | 1 | -1/+1 |
| * | implement POSIX semaphores | Rich Felker | 2011-03-04 | 10 | -0/+201 |
| * | optimize POSIX TSD for fast pthread_getspecific | Rich Felker | 2011-03-03 | 4 | -9/+14 |
| * | implement POSIX shared memory | Rich Felker | 2011-03-03 | 2 | -0/+42 |
| * | depends on settimeofday which needs _GNU_SOURCE feature test | Rich Felker | 2011-03-01 | 1 | -0/+1 |
| * | implement futimens and utimensat | Rich Felker | 2011-02-27 | 2 | -0/+13 |
| * | implement fexecve | Rich Felker | 2011-02-27 | 1 | -0/+10 |
| * | cleanup utf-8 multibyte code, use visibility if possible•••this code was written independently of musl, with support for a the
backwards, nonstandard "31-bit unicode" some libraries/apps might
want. unfortunately the extra code (inside #ifdef) makes the source
harder to read and makes code that should be simple look complex, so
i'm removing it. anyone who wants to use the old code can find it in
the history or from elsewhere.
also, change the visibility of the __fsmu8 state machine table to
hidden, if supported. this should improve performance slightly in
shared-library builds.
| Rich Felker | 2011-02-27 | 3 | -84/+5 |
| * | fix missing prototype for strsignal | Rich Felker | 2011-02-26 | 1 | -0/+1 |
| * | various changes in preparation for dynamic linking support•••prefer using visibility=hidden for __libc internal data, rather than
an accessor function, if the compiler has visibility.
optimize with -O3 for PIC targets (shared library). without heavy
inlining, reloading the GOT register in small functions kills
performance. 20-30% size increase for a single libc.so is not a big
deal, compared to comparaible size increase in every static binaries.
use -Bsymbolic-functions, not -Bsymbolic. global variables are subject
to COPY relocations, and thus binding their addresses in the library
at link time will cause library functions to read the wrong (original)
copies instead of the copies made in the main program's bss section.
add entry point, _start, for dynamic linker.
| Rich Felker | 2011-02-24 | 3 | -5/+21 |
| * | add implementation of memccpy function | Rich Felker | 2011-02-24 | 1 | -0/+32 |
| * | fix backwards conditional in stpncpy•••this only made the function unnecessarily slow on systems with
unaligned access, but would of course crash on systems that can't do
unaligned accesses (none of which have ports yet).
| Rich Felker | 2011-02-24 | 1 | -1/+1 |
| * | rewind must clear the error indicator in addition to seeking | Rich Felker | 2011-02-22 | 1 | -2/+5 |
| * | change errno to static linkage (improves PIC code generation) | Rich Felker | 2011-02-21 | 1 | -4/+2 |
| * | remove sample utf-8 code that's not part of the standard library | Rich Felker | 2011-02-21 | 1 | -47/+0 |
| * | use an accessor function for __libc data pointer when compiled as PIC•••prior to this change, a large portion of libc was unusable prior to
relocation by the dynamic linker, due to dependence on the global data
in the __libc structure and the need to obtain its address through the
GOT. with this patch, the accessor function __libc_loc is now able to
obtain the address of __libc via PC-relative addressing without using
the GOT. this means the majority of libc functionality is now
accessible right away.
naturally, the above statements all depend on having an architecture
where PC-relative addressing and jumps/calls are feasible, and a
compiler that generates the appropriate code.
| Rich Felker | 2011-02-20 | 2 | -4/+19 |
| * | avoid referencing address of extern function from vdprintf•••this change is in preparation for upcoming PIC/shared library support.
the intent is to avoid going through the GOT, mainly so that dprintf
is operable immediately, prior to processing of relocations. having
dprintf accessible from the dynamic linker will make writing and
debugging the dynamic linker much easier.
| Rich Felker | 2011-02-20 | 1 | -1/+6 |
| * | cleanup asprintf stuff | Rich Felker | 2011-02-20 | 2 | -2/+2 |
| * | fix %n specifier, again. this time it was storing the wrong value. | Rich Felker | 2011-02-20 | 1 | -7/+7 |
| * | make malloc(0) return unique pointers rather than NULL•••this change is made with some reluctance, but i think it's for the
best. correct programs must handle either behavior, so there is little
advantage to having malloc(0) return NULL. and i managed to actually
make the malloc code slightly smaller with this change.
| Rich Felker | 2011-02-20 | 2 | -6/+10 |
| * | fix simple_malloc malloc(0) behavior not to return non-unique pointers | Rich Felker | 2011-02-20 | 1 | -0/+1 |
| * | fix simple_malloc size restrictions•••do not allow allocations that overflow ptrdiff_t; fix some overflow
checks that were not quite right but didn't matter due to address
layout implementation.
| Rich Felker | 2011-02-20 | 1 | -5/+6 |
| * | fix null pointer dereference introduced in last sigprocmask commit | Rich Felker | 2011-02-20 | 1 | -1/+1 |
| * | make real symbols for the legacy (nonstandardized) utmp functions•••this is needed in the long term for ABI compatibility anyway, and in
the immediate, it helps with building broken programs like GNU screen
that try to prototype the functions themselves rather than using the
header.
| Rich Felker | 2011-02-20 | 1 | -0/+8 |
| * | workaround gcc bug 46926 by providing a dumb sincos implementation•••note that this library itself is built with -ffreestanding so sincos.c
should not be miscompiled even if the gcc used to compile musl has
this bug.
| Rich Felker | 2011-02-19 | 1 | -0/+8 |
| * | use rt_sigprocmask, not legacy sigprocmask, syscall in pthread exit code | Rich Felker | 2011-02-19 | 1 | -1/+1 |
| * | implement the remaining clock_* interfaces | Rich Felker | 2011-02-19 | 5 | -0/+36 |
| * | race condition fix: block all signals before decrementing thread count•••the existence of a (kernelspace) thread must never have observable
effects after the thread count is decremented. if signals are not
blocked, it could end up handling the signal for rsyscall and
contributing towards the count of threads which have changed ids,
causing a thread to be missed. this could lead to one thread retaining
unwanted privilege level.
this change may also address other subtle race conditions in
application code that uses signals.
| Rich Felker | 2011-02-19 | 3 | -22/+2 |
| * | prevent sigprocmask/pthread_sigmask from blocking implementation signals•••this code was wrongly disabled because the old version was trying to
be too clever and didn't work. replaced it with a simple version for
now.
| Rich Felker | 2011-02-19 | 1 | -3/+5 |
| * | make pthread_exit run dtors for last thread, wait to decrement thread count | Rich Felker | 2011-02-19 | 1 | -3/+3 |
| * | make mktemp match the historic behavior, and update functions that use it•••the historic mktemp is supposed to blank the template string on
failure, rather than returning 0. just zero the first character so
that mkstemp and mkdtemp can still retry with O(1) space requirement.
| Rich Felker | 2011-02-19 | 3 | -5/+8 |
| * | fix major bug created from copying mkdtemp logic | Rich Felker | 2011-02-19 | 1 | -1/+1 |
| * | add syscall wrappers for inotify | Rich Felker | 2011-02-19 | 4 | -0/+28 |
| * | cleanup cruft left from when kernel and user time_t disagreed | Rich Felker | 2011-02-19 | 2 | -12/+3 |
| * | add pthread_atfork interface•••note that this presently does not handle consistency of the libc's own
global state during forking. as per POSIX 2008, if the parent process
was threaded, the child process may only call async-signal-safe
functions until one of the exec-family functions is called, so the
current behavior is believed to be conformant even if non-ideal. it
may be improved at some later time.
| Rich Felker | 2011-02-18 | 3 | -3/+55 |
| * | major improvements to temp file name generator•••use current time in nanoseconds and some potentially-random (if aslr
is enabled) pointer values for the initial tempfile name generation,
and step via a cheap linear prng on collisions. limit the number of
retry attempts to prevent denial of service attacks even if an
attacker can guess the filenames.
| Rich Felker | 2011-02-18 | 3 | -16/+21 |
| * | reformat mkstemp like mkdtemp•••this is cleaner and makes it easy to impose a limit on the number of
retries later if it seems desirable to do so.
| Rich Felker | 2011-02-18 | 1 | -7/+5 |
