| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | make ldso asm more uniform with rest of codebase (no unnecessary suffixes) | Rich Felker | 2011-06-19 | 1 | -12/+12 |
| * | x86_64: ensure that dtor pointer passed to app is 0 so it won't be used•••leaving it uninitialized caused unpredictable crashes or worse due to
calling an indeterminate function pointer.
| Rich Felker | 2011-06-19 | 1 | -0/+1 |
| * | dynamic linker 64bit fix: hash table entries are always 32bit | Rich Felker | 2011-06-18 | 1 | -2/+2 |
| * | experimental dynamic linker!•••some notes:
- library search path is hard coded
- x86_64 code is untested and may not work
- dlopen/dlsym is not yet implemented
- relocations in read-only memory won't work
| Rich Felker | 2011-06-18 | 3 | -0/+412 |
| * | fix memory leak on failure in realpath | Rich Felker | 2011-06-18 | 1 | -4/+4 |
| * | duplicate re_nsub in LSB/glibc ABI compatible location | Rich Felker | 2011-06-16 | 1 | -1/+1 |
| * | restore use of .type in asm, but use modern @function (vs %function)•••this seems to be necessary to make the linker accept the functions in
a shared library (perhaps to generate PLT entries?)
strictly speaking libc-internal asm should not need it. i might clean
that up later.
| Rich Felker | 2011-06-14 | 20 | -0/+29 |
| * | fix race condition in pthread_kill•••if thread id was reused by the kernel between the time pthread_kill
read it from the userspace pthread_t object and the time of the tgkill
syscall, a signal could be sent to the wrong thread. the tgkill
syscall was supposed to prevent this race (versus the old tkill
syscall) but it can't; it can only help in the case where the tid is
reused in a different process, but not when the tid is reused in the
same process.
the only solution i can see is an extra lock to prevent threads from
exiting while another thread is trying to pthread_kill them. it should
be very very cheap in the non-contended case.
| Rich Felker | 2011-06-14 | 3 | -1/+8 |
| * | run dtors before taking the exit-lock in pthread exit•••previously a long-running dtor could cause pthread_detach to block.
| Rich Felker | 2011-06-14 | 1 | -2/+2 |
| * | minor locking optimizations | Rich Felker | 2011-06-14 | 2 | -2/+2 |
| * | avoid 64bit warnings when using pointers as entropy for temp names | Rich Felker | 2011-06-13 | 2 | -2/+4 |
| * | fix sigset macro for 64-bit systems (<< was overflowing due to wrong type) | Rich Felker | 2011-06-13 | 1 | -1/+1 |
| * | remove all .size and .type directives for functions from the asm•••these are useless and have caused problems for users trying to build
with non-gnu tools like tcc's assembler.
| Rich Felker | 2011-06-13 | 18 | -52/+0 |
| * | remove old useless timezone.s file (unused) | Rich Felker | 2011-06-13 | 1 | -27/+0 |
| * | fix wrong type for wcsrchr argument 2 | Rich Felker | 2011-06-13 | 1 | -1/+1 |
| * | x86_64 fenv support (untested; at least known to build successfully) | Rich Felker | 2011-06-13 | 1 | -0/+88 |
| * | fix fesetround - it was writing to status word instead of control word | Rich Felker | 2011-06-13 | 1 | -3/+8 |
| * | floating point environment, untested•••at present the i386 code does not support sse floating point, which is
not part of the standard i386 abi. while it may be desirable to
support it later, doing so will reduce performance and require some
tricks to probe if sse support is present.
this first commit is i386-only, but it should be trivial to port the
asm to x86_64.
| Rich Felker | 2011-06-12 | 6 | -0/+144 |
| * | malloc: cast size down to int in bin_index functions•••even if size_t was 32-bit already, the fact that the value was
unsigned and that gcc is too stupid to figure out it would be positive
as a signed quantity (due to the immediately-prior arithmetic and
conditionals) results in gcc compiling the integer-to-float conversion
as zero extension to 64 bits followed by an "fildll" (64 bit)
instruction rather than a simple "fildl" (32 bit) instruction on x86.
reportedly fildll is very slow on certain p4-class machines; even if
not, the new code is slightly smaller.
| Rich Felker | 2011-06-12 | 1 | -2/+2 |
| * | another return value fix for mktemp... | Rich Felker | 2011-06-12 | 1 | -1/+2 |
| * | it's called getgrgid_r, not getgruid_r... | Rich Felker | 2011-06-08 | 1 | -1/+1 |
| * | implement psignal and psiginfo | Rich Felker | 2011-06-08 | 2 | -0/+20 |
| * | mq names without leading / have impl-def behavior; allowing them is easier | Rich Felker | 2011-06-07 | 2 | -9/+2 |
| * | define MQ_PRIO_MAX | Rich Felker | 2011-06-07 | 1 | -1/+1 |
| * | mq send/recv functions are cancellation points | Rich Felker | 2011-06-07 | 2 | -2/+2 |
| * | implement mq_notify | Rich Felker | 2011-06-07 | 1 | -2/+65 |
| * | add support for POSIX message queues, except mq_notify | Rich Felker | 2011-06-07 | 10 | -0/+99 |
| * | use volatile pointers for intentional-crash code. | Rich Felker | 2011-06-06 | 2 | -3/+3 |
| * | fix handling of d_name in struct dirent•••basically there are 3 choices for how to implement this variable-size
string member:
1. C99 flexible array member: breaks using dirent.h with pre-C99 compiler.
2. old way: length-1 string: generates array bounds warnings in caller.
3. new way: length-NAME_MAX string. no problems, simplifies all code.
of course the usable part in the pointer returned by readdir might be
shorter than NAME_MAX+1 bytes, but that is allowed by the standard and
doesn't hurt anything.
| Rich Felker | 2011-06-06 | 2 | -7/+5 |
| * | safety fix for glob's vla usage: disallow patterns longer than PATH_MAX•••this actually inadvertently disallows some valid patterns with
redundant / or * characters, but it's better than allowing unbounded
vla allocation.
eventually i'll write code to move the pattern to the stack and
eliminate redundancy to ensure that it fits in PATH_MAX at the
beginning of glob. this would also allow it to be modified in place
for passing to fnmatch rather than copied at each level of recursion.
| Rich Felker | 2011-06-05 | 1 | -0/+2 |
| * | eliminate (harmless in this case) vla usage in fnmatch.c | Rich Felker | 2011-06-05 | 1 | -1/+1 |
| * | implement pthread_[sg]etconcurrency.•••there is a resource limit of 0 bits to store the concurrency level
requested. thus any positive level exceeds a resource limit, resulting
in EAGAIN. :-)
| Rich Felker | 2011-05-30 | 2 | -0/+15 |
| * | implement uselocale function (minimal) | Rich Felker | 2011-05-30 | 2 | -0/+12 |
| * | add useless, obsolescent function ulimit | Rich Felker | 2011-05-29 | 1 | -0/+19 |
| * | fix backwards posix_spawn file action order | Rich Felker | 2011-05-29 | 5 | -6/+10 |
| * | add accidentally-omitted file needed for posix_spawn file actions | Rich Felker | 2011-05-28 | 1 | -0/+10 |
| * | add file actions support to posix_spawn | Rich Felker | 2011-05-28 | 5 | -2/+85 |
| * | posix_spawn: honor POSIX_SPAWN_SETSIGDEF flag | Rich Felker | 2011-05-28 | 1 | -1/+3 |
| * | initial implementation of posix_spawn•••file actions are not yet implemented, but everything else should be
mostly complete and roughly correct.
| Rich Felker | 2011-05-28 | 12 | -0/+151 |
| * | modernize coding style in sjlj asm | Rich Felker | 2011-05-26 | 4 | -35/+35 |
| * | fix strncat and wcsncat (double null termination)•••also modify wcsncpy to use the same loop logic
| Rich Felker | 2011-05-22 | 3 | -3/+3 |
| * | fix wcsncpy writing past end of buffer | Rich Felker | 2011-05-22 | 1 | -1/+1 |
| * | fix brk/sbrk behavior to match the real legacy functions | Rich Felker | 2011-05-22 | 2 | -2/+4 |
| * | fix the last known rounding bug in floating point printing•••the observed symptom was that the code was incorrectly rounding up
1.0625 to 1.063 despite the rounding mode being round-to-nearest with
ties broken by rounding to even last place. however, the code was just
not right in many respects, and i'm surprised it worked as well as it
did. this time i tested the values that end up in the variables round,
small, and the expression round+small, and all look good.
| Rich Felker | 2011-05-11 | 1 | -3/+4 |
| * | eventfd syscall wrapper and read/write wrappers | Rich Felker | 2011-05-08 | 3 | -0/+21 |
| * | optimize out useless default-attribute object in pthread_create | Rich Felker | 2011-05-07 | 1 | -7/+7 |
| * | optimize compound-literal sigset_t's not to contain useless hurd bits | Rich Felker | 2011-05-07 | 3 | -5/+7 |
| * | overhaul implementation-internal signal protections•••the new approach relies on the fact that the only ways to create
sigset_t objects without invoking UB are to use the sig*set()
functions, or from the masks returned by sigprocmask, sigaction, etc.
or in the ucontext_t argument to a signal handler. thus, as long as
sigfillset and sigaddset avoid adding the "protected" signals, there
is no way the application will ever obtain a sigset_t including these
bits, and thus no need to add the overhead of checking/clearing them
when sigprocmask or sigaction is called.
note that the old code actually *failed* to remove the bits from
sa_mask when sigaction was called.
the new implementations are also significantly smaller, simpler, and
faster due to ignoring the useless "GNU HURD signals" 65-1024, which
are not used and, if there's any sanity in the world, never will be
used.
| Rich Felker | 2011-05-07 | 12 | -49/+31 |
| * | reduce some ridiculously large spin counts•••these should be tweaked according to testing. offhand i know 1000 is
too low and 5000 is likely to be sufficiently high. consider trying to
add futexes to file locking, too...
| Rich Felker | 2011-05-06 | 2 | -2/+2 |
| * | remove debug code that was missed in barrier commit | Rich Felker | 2011-05-06 | 1 | -1/+0 |
