Date: Sat, 2 May 2015 18:48:18 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Potential cleanup work post-1.1.9 Just some ideas to jot down somewhere public: - Changing pthread_cancel signal handler to use mcontext_t members by name (with the name provided by pthread_arch.h) instead of offset macros and a fake overlaid array. - Re-unifying x86_64 and x32 sigsetjmp.s by moving both saved values to after the signal mask. - Providing inline atomics instead of runtime-switched for sh4a. - Cleaning out cruft from struct __pthread, possibly condensing multiple locks, packing small/boolean values into chars or bitfields, etc. - Evaluating whether it still makes sense to have struct __libc, or all the members in it. - Eliminating float code in malloc on soft-float archs. - Deduplicating atomic.h emulations of a_* in terms of a_cas, so that archs where everything is emulated in terms of a_cas can just define a_cas (much like how syscall.h and syscall_arch.h work now). - Default atomics implementation for new archs to use (at least initially) based on __sync_* builtins. - Bits deduplication. - Possibly eliminating preference of globals over TLS, at least when it uglifies/enlarges/complexifies the code, for example use of libc.threads_minus_1 to determine whether to skip locks and libc.uselocale_cnt (instead of __pthread_self()->locale) in the CURRENT_LOCALE macro.
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