From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/metag/include/uapi/asm/sigcontext.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 arch/metag/include/uapi/asm/sigcontext.h (limited to 'arch/metag/include/uapi/asm/sigcontext.h') diff --git a/arch/metag/include/uapi/asm/sigcontext.h b/arch/metag/include/uapi/asm/sigcontext.h new file mode 100644 index 000000000..ef79a910c --- /dev/null +++ b/arch/metag/include/uapi/asm/sigcontext.h @@ -0,0 +1,31 @@ +#ifndef _ASM_METAG_SIGCONTEXT_H +#define _ASM_METAG_SIGCONTEXT_H + +#include + +/* + * In a sigcontext structure we need to store the active state of the + * user process so that it does not get trashed when we call the signal + * handler. That not really the same as a user context that we are + * going to store on syscall etc. + */ +struct sigcontext { + struct user_gp_regs regs; /* needs to be first */ + + /* + * Catch registers describing a memory fault. + * If USER_GP_REGS_STATUS_CATCH_BIT is set in regs.status then catch + * buffers have been saved and will be replayed on sigreturn. + * Clear that bit to discard the catch state instead of replaying it. + */ + struct user_cb_regs cb; + + /* + * Read pipeline state. This will get restored on sigreturn. + */ + struct user_rp_state rp; + + unsigned long oldmask; +}; + +#endif -- cgit v1.2.3-54-g00ecf