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

History

Rich Felker 10d0268ccf switch to using trap number 31 for syscalls on sh nominally the low bits of the trap number on sh are the number of syscall arguments, but they have never been used by the kernel, and some code making syscalls does not even know the number of arguments and needs to pass an arbitrary high number anyway. sh3/sh4 traditionally used the trap range 16-31 for syscalls, but part of this range overlapped with hardware exceptions/interrupts on sh2 hardware, so an incompatible range 32-47 was chosen for sh2. using trap number 31 everywhere, since it's in the existing sh3/sh4 range and does not conflict with sh2 hardware, is a proposed unification of the kernel syscall convention that will allow binaries to be shared between sh2 and sh3/sh4. if this is not accepted into the kernel, we can refit the sh2 target with runtime selection mechanisms for the trap number, but doing so would be invasive and would entail non-trivial overhead.		11 years ago
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aarch64	add .text section directive to all crt_arch.h files missing it	11 years ago
arm	arm: add vdso support	11 years ago
i386	fix inconsistency in a_and and a_or argument types on x86[_64]	11 years ago
microblaze	add .text section directive to all crt_arch.h files missing it	11 years ago
mips	fix stack alignment code in mips crt_arch.h	11 years ago
or1k	add .text section directive to all crt_arch.h files missing it	11 years ago
powerpc	add .text section directive to all crt_arch.h files missing it	11 years ago
sh	switch to using trap number 31 for syscalls on sh	11 years ago
x32	fix inconsistency in a_and and a_or argument types on x86[_64]	11 years ago
x86_64	fix inconsistency in a_and and a_or argument types on x86[_64]	11 years ago