| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | syscall overhaul part two - unify public and internal syscall interface•••with this patch, the syscallN() functions are no longer needed; a
variadic syscall() macro allows syscalls with anywhere from 0 to 6
arguments to be made with a single macro name. also, manually casting
each non-integer argument with (long) is no longer necessary; the
casts are hidden in the macros.
some source files which depended on being able to define the old macro
SYSCALL_RETURNS_ERRNO have been modified to directly use __syscall()
instead of syscall(). references to SYSCALL_SIGSET_SIZE and SYSCALL_LL
have also been changed.
x86_64 has not been tested, and may need a follow-up commit to fix any
minor bugs/oversights.
| Rich Felker | 2011-03-19 | 1 | -3/+3 |
| * | overhaul syscall interface•••this commit shuffles around the location of syscall definitions so
that we can make a syscall() library function with both SYS_* and
__NR_* style syscall names available to user applications, provides
the syscall() library function, and optimizes the code that performs
the actual inline syscalls in the library itself.
previously on i386 when built as PIC (shared library), syscalls were
incurring bus lock (lock prefix) overhead at entry and exit, due to
the way the ebx register was being loaded (xchg instruction with a
memory operand). now the xchg takes place between two registers.
further cleanup to arch/$(ARCH)/syscall.h is planned.
| Rich Felker | 2011-03-19 | 1 | -2/+2 |
| * | cut out a syscall on thread creation in the case where guard size is 0 | Rich Felker | 2011-03-16 | 1 | -1/+1 |
| * | implement flockfile api, rework stdio locking | Rich Felker | 2011-03-12 | 1 | -0/+1 |
| * | optimize pthread termination in the non-detached case•••we can avoid blocking signals by simply using a flag to mark that the
thread has exited and prevent it from getting counted in the rsyscall
signal-pingpong. this restores the original pthread create/join
throughput from before the sigprocmask call was added.
| Rich Felker | 2011-03-10 | 1 | -4/+15 |
| * | security fix: check that cancel/rsyscall signal was sent by the process itself | Rich Felker | 2011-03-10 | 1 | -0/+3 |
| * | use rt_sigprocmask, not legacy sigprocmask, syscall in pthread exit code | Rich Felker | 2011-02-19 | 1 | -1/+1 |
| * | 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 | 1 | -0/+2 |
| * | make pthread_exit run dtors for last thread, wait to decrement thread count | Rich Felker | 2011-02-19 | 1 | -3/+3 |
| * | reorganize pthread data structures and move the definitions to alltypes.h•••this allows sys/types.h to provide the pthread types, as required by
POSIX. this design also facilitates forcing ABI-compatible sizes in
the arch-specific alltypes.h, while eliminating the need for
developers changing the internals of the pthread types to poke around
with arch-specific headers they may not be able to test.
| Rich Felker | 2011-02-17 | 1 | -3/+3 |
| * | begin unifying clone/thread management interface in preparation for porting | Rich Felker | 2011-02-15 | 1 | -4/+2 |
| * | make pthread_create return EAGAIN on resource failure, as required by POSIX | Rich Felker | 2011-02-15 | 1 | -1/+1 |
| * | reorganize thread exit code, make pthread_exit call cancellation handlers (pt2) | Rich Felker | 2011-02-13 | 1 | -13/+50 |
| * | initial check-in, version 0.5.0 | Rich Felker | 2011-02-12 | 1 | -0/+189 |
