riscv/musl - musl - Gitea: Git with a cup of tea

History

Rich Felker 61b1e75f7d overhaul sh atomics for new atomics framework, add j-core cas.l backend sh needs runtime-selected atomic backends since there are a number of supported models that use non-forwards-compatible (non-smp-compatible) atomic mechanisms. previously, the code paths for this were highly inefficient since they involved C function calls with multiple branches in the callee and heavy spills in the caller. the new code performs calls the runtime-selected asm fragment from inline asm with extremely minimal clobbers, rather than using a function call. for the sh4a case where the atomic mechanism is known and there is no forward-compatibility issue, the movli.l and movco.l instructions are provided as a_ll and a_sc, allowing the new shared atomic.h to generate efficient inline versions of all the basic atomic operations without needing a cas loop.		10 years ago
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bits	fix sh jmp_buf size to match ABI	11 years ago
src	overhaul sh atomics for new atomics framework, add j-core cas.l backend	10 years ago
atomic_arch.h	overhaul sh atomics for new atomics framework, add j-core cas.l backend	10 years ago
crt_arch.h	generalize sh entry point asm not to assume call dests fit in 12 bits	11 years ago
ksigaction.h	fix signal return for sh/fdpic	11 years ago
pthread_arch.h	properly access mcontext_t program counter in cancellation handler	11 years ago
reloc.h	fix dynamic loader library mapping for nommu systems	11 years ago
syscall_arch.h	switch to using trap number 31 for syscalls on sh	11 years ago