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* fix buffer overrun in getgrent code when there are no group membersRich Felker2011-06-301-4/+8
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* posix_memalign should fail if size is not a multiple of sizeof(void *)Rich Felker2011-06-291-1/+1
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* avoid errors in ucontext.h when no feature test macros are definedRich Felker2011-06-291-3/+5
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* locking support for random() prngRich Felker2011-06-291-7/+28
| | | | | | these interfaces are required to be thread-safe even though they are not state-free. the random number sequence is shared across all threads.
* work around linux bug in mprotectRich Felker2011-06-291-1/+5
| | | | | | | | | | | per POSIX: The mprotect() function shall change the access protections to be that specified by prot for those whole pages containing any part of the address space of the process starting at address addr and continuing for len bytes. on the other hand, linux mprotect fails with EINVAL if the base address and/or length is not page-aligned, so we have to align them before making the syscall.
* textrel support, cheap and uglyRich Felker2011-06-291-0/+5
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* release notes for 0.7.11 v0.7.11Rich Felker2011-06-281-0/+22
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* reclaim the memory wasted by dynamic linking for use by mallocRich Felker2011-06-281-0/+39
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* use type directives for fenv asm functionsRich Felker2011-06-282-0/+14
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* use load address from elf header if possibleRich Felker2011-06-281-1/+1
| | | | | | | | | this is mostly useless for shared libs (though it could help for prelink-like purposes); the intended use case is for adding support for calling the dynamic linker directly to run a program, as in: ./libc.so ./a.out foo this usage is not yet supported.
* make dynamic linker relocate the main program image last, after all libsRich Felker2011-06-281-0/+1
| | | | | prior to this change, copy relocations for initialized pointer variables would not reflect the relocated contents of the pointer.
* fix a few bugs from last dynamic linking build system commitRich Felker2011-06-281-2/+2
| | | | some cruft was left and DESTDIR was not being used correctly.
* minor updates to INSTALL documentationRich Felker2011-06-271-0/+10
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* cleanup shared library build system to be more $HOME-local-install friendlyRich Felker2011-06-273-16/+21
| | | | | the path for the dynamic linker is now configurable, and failure to install the symlink for it will not stop the build.
* further fixup dlfcn.hRich Felker2011-06-271-4/+10
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* match LSB/glibc constants for dynamic loaderRich Felker2011-06-271-4/+4
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* fix stale pointer issue in dynamic linker with dlopenRich Felker2011-06-261-0/+1
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* don't leave the lock held on dlopen failure..Rich Felker2011-06-261-2/+2
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* add RTLD_DEFAULT supportRich Felker2011-06-261-1/+2
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* in dlopen: don't use null pointerRich Felker2011-06-261-3/+3
| | | | deps can be null if a library has no dependencies (such as libc itself)
* fix resolving symbols in objects loaded in RTLD_LOCAL modeRich Felker2011-06-261-0/+11
| | | | | | basically we temporarily make the library and all its dependencies part of the global namespace but only for the duration of performing relocations, then return them to their former state.
* experimental dlopen/dlsym and dynlink changes needed to support themRich Felker2011-06-261-8/+125
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* type directives for x86_64 math asmRich Felker2011-06-262-0/+2
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* error handling in dynamic linkingRich Felker2011-06-261-2/+19
| | | | | | some of the code is not yet used, and is in preparation for dlopen which needs to be able to handle failure loading libraries without terminating the program.
* fix useless use of potentially-uninitialized mode variable in sem_openRich Felker2011-06-261-1/+1
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* eliminate OOB array hacks in mallocRich Felker2011-06-261-46/+45
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* use .type directives for math asm (needed for dynamic linking to work)Rich Felker2011-06-2615-0/+26
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* fix some symbol resolution issues in dynamic linkerRich Felker2011-06-253-4/+6
| | | | | 1. search was wrongly beginning with lib itself rather than dso head 2. inconsistent resolution of function pointers for functions in plt
* fix dynamic linker issue in musl-gcc wrapperRich Felker2011-06-251-1/+1
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* wordexp cannot use we_offs unless WRDE_DOOFFS flag is setRich Felker2011-06-251-1/+2
| | | | | | previously, a potentially-indeterminate value from we_offs was being used, resulting in wrong we_wordc and subsequent crashes in the caller.
* XSI search.h API implementation by Szabolcs NagyRich Felker2011-06-256-4/+392
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* handle library paths better (ignore empty path components, etc.)Rich Felker2011-06-251-3/+5
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* move all limits that don't vary out of bits/limits.h, into main limits.hRich Felker2011-06-253-53/+24
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* fix possible (questionable) strict aliasing violations and ptr arithRich Felker2011-06-251-3/+3
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* const correctness in mq_notifyRich Felker2011-06-251-1/+1
| | | | why did gcc allow this invalid assignment to compile in the first place?
* proper path searching for dynamic linkerRich Felker2011-06-253-14/+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.
* optimize opendir using O_CLOEXECRich Felker2011-06-251-2/+1
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* discard dso descriptors after performing relocationsRich Felker2011-06-251-0/+12
| | | | | eventually (once dlopen exists) this behavior will be conditional on dlopen/dlsym not being reachable.
* keep track of which dsos have been relocatedRich Felker2011-06-251-0/+1
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* use soname in ld-musl.so to prevent filename appearing in DT_NEEDEDsRich Felker2011-06-241-1/+1
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* use symlink rather than bogus linker script for libc.soRich Felker2011-06-241-2/+2
| | | | the linker script caused a bogus DT_NEEDED entry
* adapt build/install/gcc-wrapper systems for dynamic linking supportRich Felker2011-06-233-9/+20
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* prepare support for LD_LIBRARY_PATH (checking suid/sgid safety)Rich Felker2011-06-231-0/+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.
* initial commit of prng implementation by Szabolcs NagyRich Felker2011-06-233-12/+111
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* make ldso asm more uniform with rest of codebase (no unnecessary suffixes)Rich Felker2011-06-191-12/+12
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* x86_64: ensure that dtor pointer passed to app is 0 so it won't be usedRich Felker2011-06-191-0/+1
| | | | | leaving it uninitialized caused unpredictable crashes or worse due to calling an indeterminate function pointer.
* dynamic linker 64bit fix: hash table entries are always 32bitRich Felker2011-06-181-2/+2
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* experimental dynamic linker!Rich Felker2011-06-185-0/+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
* fix memory leak on failure in realpathRich Felker2011-06-181-4/+4
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* copy-paste error in prctl.hRich Felker2011-06-181-1/+1
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