musl - The musl libc tree (WIP / dev branches)

Age	Commit message (Collapse)	Author	Files	Lines
2014-09-06	add threads.h and needed per-arch types for mtx_t and cnd_t	Rich Felker	1	-0/+2
	based on patch by Jens Gustedt. mtx_t and cnd_t are defined in such a way that they are formally "compatible types" with pthread_mutex_t and pthread_cond_t, respectively, when accessed from a different translation unit. this makes it possible to implement the C11 functions using the pthread functions (which will dereference them with the pthread types) without having to use the same types, which would necessitate either namespace violations (exposing pthread type names in threads.h) or incompatible changes to the C++ name mangling ABI for the pthread types. for the rest of the types, things are much simpler; using identical types is possible without any namespace considerations.
2014-08-20	add max_align_t definition for C11 and C++11	Rich Felker	1	-0/+2
	unfortunately this needs to be able to vary by arch, because of a huge mess GCC made: the GCC definition, which became the ABI, depends on quirks in GCC's definition of __alignof__, which does not match the formal alignment of the type. GCC's __alignof__ unexpectedly exposes the an implementation detail, its "preferred alignment" for the type, rather than the formal/ABI alignment of the type, which it only actually uses in structures. on most archs the two values are the same, but on some (at least i386) the preferred alignment is greater than the ABI alignment. I considered using _Alignas(8) unconditionally, but on at least one arch (or1k), the alignment of max_align_t with GCC's definition is only 4 (even the "preferred alignment" for these types is only 4).
2014-08-17	make pointers used in robust list volatile	Rich Felker	1	-1/+1
	when manipulating the robust list, the order of stores matters, because the code may be asynchronously interrupted by a fatal signal and the kernel will then access the robust list in what is essentially an async-signal context. previously, aliasing considerations made it seem unlikely that a compiler could reorder the stores, but proving that they could not be reordered incorrectly would have been extremely difficult. instead I've opted to make all the pointers used as part of the robust list, including those in the robust list head and in the individual mutexes, volatile. in addition, the format of the robust list has been changed to point back to the head at the end, rather than ending with a null pointer. this is to match the documented kernel robust list ABI. the null pointer, which was previously used, only worked because faults during access terminate the robust list processing.
2014-07-29	fix terminal control ioctl constants for sh	Rich Felker	1	-4/+8
	this commit changes the names to match the kernel names, exposing under the normal names the "old" versions which work with a smaller termios structure compatible with the userspace structure, and renaming the "new" versions with "2" on the end like the kernel has. this fixes spurious warnings "Unsupported ioctl: cmd=0x802c542a" from qemu-sh4 and should be more correct anyway, since our userspace termios structure does not have meaningful information in the part which the kernel would be interpreting as speeds with the new ioctl.
2014-04-15	fix RLIMIT_ constants for mips	Szabolcs Nagy	1	-0/+0
	The mips arch is special in that it uses different RLIMIT_ numbers than other archs, so allow bits/resource.h to override the default RLIMIT_ numbers (empty on all archs except mips). Reported by orc.
2014-03-18	fix signal.h breakage from moving stack_t to arch-specific bits	Rich Felker	1	-6/+6
	in the previous changes, I missed the fact that both the prototype of the sigaltstack function and the definition of ucontext_t depend on stack_t.
2014-03-18	move signal.h definition of stack_t to arch-specific bits	Rich Felker	1	-0/+6
	it's different at least on mips. mips version will be fixed in a separate commit to show the change.
2014-03-11	move struct semid_ds to from shared sys/sem.h to bits	Rich Felker	1	-0/+16
	the definition was found to be incorrect at least for powerpc, and fixing this cleanly requires making the definition arch-specific. this will allow cleaning up the definition for other archs to make it more specific, and reversing some of the ugliness (time_t hacks) introduced with the x32 port. this first commit simply copies the existing definition to each arch without any changes. this is intentional, to make it easier to review changes made on a per-arch basis.
2014-03-08	add bits/user.h for sh port	Rich Felker	1	-0/+75
	this seems to have been overlooked, and resulted in breakage in anything including sys/user.h.
2014-02-27	add nofpu subarchs to the sh arch, and properly detect compiler's fpu config	Rich Felker	1	-0/+9

2014-02-27	fix endian subarchs for sh arch	Rich Felker	1	-3/+3
	default endianness for sh on linux is little, and while conventions vary, "eb" seems to be the most widely used suffix for big endian.
2014-02-27	rename superh port to "sh" for consistency	Rich Felker	23	-0/+1561
	linux, gcc, etc. all use "sh" as the name for the superh arch. there was already some inconsistency internally in musl: the dynamic linker was searching for "ld-musl-sh.path" as its path file despite its own name being "ld-musl-superh.so.1". there was some sentiment in both directions as to how to resolve the inconsistency, but overall "sh" was favored.