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FreeBSD's get_mcontext doesn't return any vfp data. Instead, it zeros
out the vfp feilds (and all the spare fields). Impelement this
behavior. We're still missing the sysarch(ARM_GET_VFPCONTEXT) syscall,
though.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Fix the broken context setting for arm. FreeBSD's get_mcontext does not
fill in the vfp info. It's filled in in sigframe(). This corresponds to
the new setup_sigframe_arch which fills in mcontext, then adjusts it to
point to the vfp context in the sigframe and fills in that context as
well. Add pointer to where this code is done.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Update ucontext to implement sigreturn.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Move the machine context to the CPU state.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Get the machine context from the CPU state.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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Implement set_sigtramp_args to setup the arguments to the sigtramp
calls.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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