| Commit message (Expand) | Author | Files | Lines |
|---|
| 2012-05-27 | cleanup dynamic linker start code cruft•••two actual issues: one is that __dynlink no longer wants/needs a GOT
pointer argument, so the code to generate that argument can be
removed. the other issue was that in the i386 code, argc/argv were
being loaded into registers that would be call-clobbered, then copied
to preserved registers, rather than just being loaded into the proper
call-preserved registers to begin with.
this cleanup is in preparation for adding new dynamic linker
functionality (ability to explicitly invoke the dynamic linker to run
a program).
| Rich Felker | 3 | -13/+6 |
| 2012-05-26 | fix overrun (n essentially ignored) in wcsncmp•••bug report and solution by Richard Pennington
| Rich Felker | 1 | -1/+1 |
| 2012-05-26 | fix failure of mbsinit(0) (not UB; required to return nonzero)•••issue reported by Richard Pennington; slightly simpler fix applied
| Rich Felker | 1 | -1/+1 |
| 2012-05-26 | fix failure of strrchr(str, 0)•••bug report and solution by Richard Pennington
| Rich Felker | 1 | -1/+1 |
| 2012-05-25 | avoid using pthread cleanup push/pop in stdio when not needed•••unfortunately in dynamic-linked programs, these macros cause
pthread_self to be initialized, which costs a couple syscalls, and
(much worse) would necessarily fail, crash, and burn on ancient (2.4
and earlier) kernels where setting up a thread pointer does not work.
i'd like to do this in a more generic way that avoids all use of
cleanup push/pop before pthread_self has been successfully called and
avoids ugly if/else constructs like the one in this commit, but for
now, this will suffice.
| Rich Felker | 2 | -6/+14 |
| 2012-05-25 | ensure pthread-internal signals are unblocked before threads are used•••if the process started with these signals blocked, cancellation could
fail or setxid could deadlock. there is no way to globally unblock
them after threads have been created. by unblocking them in the
pthread_self initialization for the main thread, we ensure that
they're unblocked before any other threads are created and also
outside of any signal handler context (sigaction initialized
pthread_self), which is important so that return from a signal handler
won't re-block them.
| Rich Felker | 1 | -0/+1 |
| 2012-05-25 | fix regex on arm•••TRE has a broken assumption that wchar_t is signed, which is a sane
expectation, but not required by the standard, and false on ARM's ABI.
i leave tre_char_t as wchar_t for now, since a pointer to it is
directly passed to functions that need pointer to wchar_t. it does not
seem to break anything. and since the maximum unicode scalar value is
0x10ffff, just use that explicitly rather than using the max value of
any particular C type.
| Rich Felker | 1 | -1/+1 |
| 2012-05-25 | remove cruft from pthread structure (old cancellation stuff) | Rich Felker | 1 | -2/+0 |
| 2012-05-25 | remove leftover cp_sp cruft from cancellation code, fix small bug•••the bug was that cancellation requests which arrived while a
cancellation point was interrupted by a signal handler would not be
acted upon when the signal handler returns. this was because cp_sp was
never set; it's no longer needed or used.
instead, just always re-raise the signal when cancellation was not
acted upon. this wastes a tiny amount of time in the rare case where
it even matters, but it ensures correctness and simplifies the code.
| Rich Felker | 1 | -3/+1 |
| 2012-05-24 | fix arm syscall.h to reflect which syscalls actually exist (on EABI) | Rich Felker | 1 | -22/+0 |
| 2012-05-24 | avoid deprecated (by linux) alarm syscall; use setitimer instead | Rich Felker | 1 | -1/+4 |
| 2012-05-24 | linux deprecated SYS_utime on some archs, so use SYS_utimes instead•••the old code could be kept for cases where SYS_utime is available, but
it's not really worth the ifdef ugliness. and better to avoid
deprecated stuff just in case the kernel devs ever get crazy enough to
start removing it from archs where it was part of the ABI and breaking
static bins...
| Rich Felker | 1 | -1/+8 |
| 2012-05-23 | fix bad opcode in arm syscall_cp_asm | Rich Felker | 1 | -1/+1 |
| 2012-05-23 | fix issue with longjmp out of signal handlers and cancellation•••stale state information indicating that a thread was possibly blocked
at a cancellation point could get left behind if longjmp was used to
exit a signal handler that interrupted a cancellation point.
to fix the issue, we throw away the state information entirely and
simply compare the saved instruction pointer to a range of code
addresses in the __syscall_cp_asm function. all the ugly PIC work
(which becomes minimal anyway with this approach) is defered to
cancellation time instead of happening at every syscall, which should
improve performance too.
this commit also fixes cancellation on arm, which was mildly broken
(race condition, not checking cancellation flag once inside the
cancellation point zone). apparently i forgot to implement that. the
new arm code is untested, but appears correct; i'll test and fix it
later if there are problems.
| Rich Felker | 4 | -52/+35 |
| 2012-05-23 | simplify cancellation push/pop slightly•••no need to pass unnecessary extra arguments on to the core code in
pthread_create.c. this just wastes cycles and code bloat.
| Rich Felker | 2 | -12/+9 |
| 2012-05-23 | debloat jmp_buf in _GNU_SOURCE mode•••i originally made it the same size as the bloated GNU version, which
contains space for saved signal mask, but this makes some structures
containing jmp_buf become much larger for no benefit. we will never
use the signal mask field with plain setjmp; sigsetjmp serves that
purpose.
| Rich Felker | 1 | -3/+0 |
| 2012-05-22 | remove everything related to forkall•••i made a best attempt, but the intended semantics of this function are
fundamentally contradictory. there is no consistent way to handle
ownership of locks when forking a multi-threaded process. the code
could have worked by accident for programs that only used normal
mutexes and nothing else (since they don't actually store or care
about their owner), but that's about it. broken-by-design interfaces
that aren't even in glibc (only solaris) don't belong in musl.
| Rich Felker | 4 | -78/+0 |
| 2012-05-22 | some feature test fixes for unistd.h | Rich Felker | 1 | -16/+16 |
| 2012-05-22 | fix missing _BSD_SOURCE support in bits/*.h•••this is actually rather ugly, and would get even uglier if we ever
want to support further feature test macros. at some point i may
factor the bits headers into separate files for C base, POSIX base,
and nonstandard extensions (the only distinctions that seem to matter
now) and then the logic for which to include can go in the main header
rather than being duplicated for each arch. the downside of this is
that it would result in more files having to be opened during
compilation, so as long as the ugliness does not grow, i'm inclined to
leave it alone for now.
| Rich Felker | 9 | -12/+12 |
| 2012-05-22 | _GNU_SOURCE implies all BSD features except ones GNU rejects | Rich Felker | 1 | -1/+1 |
| 2012-05-22 | various header cleanups, some related to _BSD_SOURCE addition•••there is no reason to avoid multiple identical macro definitions; this
is perfectly legal C, and even with the maximal warning options
enabled, gcc does not issue any warning for it.
| Rich Felker | 3 | -17/+9 |
| 2012-05-22 | bsd_signal is a legacy (removed) XSI function, not needed in _BSD_SOURCE•••its only purpose was for use on non-BSD systems that implement sysv
semantics for signal() by default.
| Rich Felker | 1 | -4/+1 |
| 2012-05-22 | support _BSD_SOURCE feature test macro•••patch by Isaac Dunham. matched closely (maybe not exact) to glibc's
idea of what _BSD_SOURCE should make visible.
| Rich Felker | 22 | -41/+126 |
| 2012-05-21 | fix typo in utimes function that made it mess up file times | Rich Felker | 1 | -1/+1 |
| 2012-05-21 | fix out-of-bounds array access in pthread barriers on 64-bit•••it's ok to overlap with integer slot 3 on 32-bit because only slots
0-2 are used on process-local barriers.
| Rich Felker | 1 | -1/+1 |
| 2012-05-20 | move getpass decl to the right place | Rich Felker | 2 | -1/+1 |
| 2012-05-16 | fix misplaced semicolon in preprocessor directive (#undef h_errno) | Rich Felker | 1 | -1/+1 |
| 2012-05-14 | yet another try to get the check for gcc right... | Rich Felker | 1 | -1/+1 |
| 2012-05-14 | fix error in last configure change (lack of escaping) | Rich Felker | 1 | -1/+1 |
| 2012-05-14 | useless lastlog path just to make some stuff happy | Rich Felker | 1 | -0/+1 |
| 2012-05-14 | missing limit LOGIN_NAME_MAX | Rich Felker | 1 | -0/+1 |
| 2012-05-13 | correct the check for gcc (previous version failed for cross compilers) | Rich Felker | 1 | -1/+1 |
| 2012-05-13 | remove some no-op end of string tests from regex parser•••these are cruft from the original code which used an explicit string
length rather than null termination. i blindly converted all the
checks to null terminator checks, without noticing that in several
cases, the subsequent switch statement would automatically handle the
null byte correctly.
| Rich Felker | 1 | -4/+0 |
| 2012-05-13 | another BRE fix: in ^*, * is literal•••i don't understand why this has to be conditional on being in BRE
mode, but enabling this code unconditionally breaks a huge number of
ERE test cases.
| Rich Felker | 1 | -0/+2 |
| 2012-05-13 | let sysconf accurately report # of cpus available•••i've been trying out openmp and it seems like it won't be much use
without this...
| Rich Felker | 1 | -2/+10 |
| 2012-05-12 | use __h_errno_location for h_errno•••we do not bother making h_errno thread-local since the only interfaces
that use it are inherently non-thread-safe. but still use the
potentially-thread-local ABI to access it just to avoid lock-in.
| Rich Felker | 3 | -1/+14 |
| 2012-05-12 | susv4 removed gethostbyname, etc. legacy cruft. | Rich Felker | 1 | -9/+7 |
| 2012-05-12 | namespace cleanup - NI_* is NOT reserved by netdb.h | Rich Felker | 1 | -3/+2 |
| 2012-05-12 | some gnu junk in netdb.h | Rich Felker | 1 | -0/+8 |
| 2012-05-12 | fix missing va_list for vsyslog | Rich Felker | 1 | -2/+2 |
| 2012-05-13 | search: add comments to tsearch_avl.c | nsz | 1 | -0/+6 |
| 2012-05-13 | search: add tdestroy (gnu extension) | nsz | 2 | -0/+23 |
| 2012-05-11 | add missing IN6_ARE_ADDR_EQUAL•••written to avoid multiple conditional jumps and avoid ugly repetitive
lines in the header file.
| Rich Felker | 1 | -0/+5 |
