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2011-06-26eliminate OOB array hacks in mallocRich Felker1-46/+45
2011-06-26use .type directives for math asm (needed for dynamic linking to work)Rich Felker15-0/+26
2011-06-25fix some symbol resolution issues in dynamic linkerRich Felker3-4/+6
1. search was wrongly beginning with lib itself rather than dso head 2. inconsistent resolution of function pointers for functions in plt
2011-06-25fix dynamic linker issue in musl-gcc wrapperRich Felker1-1/+1
2011-06-25wordexp cannot use we_offs unless WRDE_DOOFFS flag is setRich Felker1-1/+2
previously, a potentially-indeterminate value from we_offs was being used, resulting in wrong we_wordc and subsequent crashes in the caller.
2011-06-25XSI search.h API implementation by Szabolcs NagyRich Felker6-4/+392
2011-06-25handle library paths better (ignore empty path components, etc.)Rich Felker1-3/+5
2011-06-25move all limits that don't vary out of bits/limits.h, into main limits.hRich Felker3-53/+24
2011-06-25fix possible (questionable) strict aliasing violations and ptr arithRich Felker1-3/+3
2011-06-25const correctness in mq_notifyRich Felker1-1/+1
why did gcc allow this invalid assignment to compile in the first place?
2011-06-25proper path searching for dynamic linkerRich Felker3-14/+42
first, use $LD_LIBRARY_PATH unless suid. if that fails, read path from /etc/ld-musl-$ARCH.path and fallback to a builtin default.
2011-06-25optimize opendir using O_CLOEXECRich Felker1-2/+1
2011-06-25discard dso descriptors after performing relocationsRich Felker1-0/+12
eventually (once dlopen exists) this behavior will be conditional on dlopen/dlsym not being reachable.
2011-06-25keep track of which dsos have been relocatedRich Felker1-0/+1
2011-06-24use soname in ld-musl.so to prevent filename appearing in DT_NEEDEDsRich Felker1-1/+1
2011-06-24use symlink rather than bogus linker script for libc.soRich Felker1-2/+2
the linker script caused a bogus DT_NEEDED entry
2011-06-23adapt build/install/gcc-wrapper systems for dynamic linking supportRich Felker3-9/+20
2011-06-23prepare support for LD_LIBRARY_PATH (checking suid/sgid safety)Rich Felker1-0/+6
the use of this test will be much stricter than glibc and other typical implementations; the environment will not be honored whatsoever unless the program is confirmed non-suid/sgid by the aux vector the kernel passed in. no fallback to slow syscall-based checking is used if the kernel fails to provide the information; we simply assume the worst (suid) in this case and refuse to honor environment.
2011-06-23initial commit of prng implementation by Szabolcs NagyRich Felker3-12/+111
2011-06-19make ldso asm more uniform with rest of codebase (no unnecessary suffixes)Rich Felker1-12/+12
2011-06-19x86_64: ensure that dtor pointer passed to app is 0 so it won't be usedRich Felker1-0/+1
leaving it uninitialized caused unpredictable crashes or worse due to calling an indeterminate function pointer.
2011-06-18dynamic linker 64bit fix: hash table entries are always 32bitRich Felker1-2/+2
2011-06-18experimental dynamic linker!Rich Felker5-0/+466
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
2011-06-18fix memory leak on failure in realpathRich Felker1-4/+4
2011-06-18copy-paste error in prctl.hRich Felker1-1/+1
2011-06-16fix some struct padding to match LSB/glibc ABI where it may be helpfulRich Felker2-2/+5
2011-06-16duplicate re_nsub in LSB/glibc ABI compatible locationRich Felker2-2/+3
2011-06-14restore use of .type in asm, but use modern @function (vs %function)Rich Felker20-0/+29
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.
2011-06-14__syscall5 inline is having trouble with PIC; just use the function for nowRich Felker1-0/+7
2011-06-14fix race condition in pthread_killRich Felker3-1/+8
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.
2011-06-14run dtors before taking the exit-lock in pthread exitRich Felker1-2/+2
previously a long-running dtor could cause pthread_detach to block.
2011-06-14minor locking optimizationsRich Felker2-2/+2
2011-06-13avoid 64bit warnings when using pointers as entropy for temp namesRich Felker2-2/+4
2011-06-13fix sigset macro for 64-bit systems (<< was overflowing due to wrong type)Rich Felker1-1/+1
2011-06-13remove all .size and .type directives for functions from the asmRich Felker18-52/+0
these are useless and have caused problems for users trying to build with non-gnu tools like tcc's assembler.
2011-06-13remove old useless timezone.s file (unused)Rich Felker1-27/+0
2011-06-13fix wrong type for wcsrchr argument 2Rich Felker1-1/+1