Date: Mon, 20 Aug 2018 13:26:37 +0200 From: Jan Beich <jbeich@FreeBSD.org> To: blubee blubeeme <gurenchan@gmail.com> Cc: FreeBSD current <freebsd-current@freebsd.org> Subject: Re: What's this gregset_t gregs thing Message-ID: <sh39-xor6-wny@FreeBSD.org> In-Reply-To: <CALM2mEkSNjmj%2BFSCoVd5N%2Br2Z07pHxcpDv%2BEggffUWmkZeCN3Q@mail.gmail.com> (blubee blubeeme's message of "Mon, 20 Aug 2018 08:33:04 %2B0800") References: <CALM2mEkSNjmj%2BFSCoVd5N%2Br2Z07pHxcpDv%2BEggffUWmkZeCN3Q@mail.gmail.com>
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blubee blubeeme <gurenchan@gmail.com> writes: > Linux has gregset_t gregs; > https://github.com/lattera/glibc/blob/master/sysdeps/unix/sysv/linux/x86/sys/ucontext.h > > Defined above, I also see it in the RISC-V glibc stuff as well. > > FreeBSD doesn't seem to have this field defined, I see FreeBSD uses > /usr/include/x86/ucontext.h > > but there's no gregs; __gregs exists on FreeBSD arm*, inherited from NetBSD. > If I wanted to return mcontext.gregs > > How could I implement that on FreeBSD? Only as gregset_t? If not return registers individually e.g., https://searchfox.org/mozilla-central/rev/83562422ecb0f5683da7a9a26ce05ce62bc0c882/js/src/wasm/WasmSignalHandlers.cpp#244
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