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/* Copyright (C) 1999-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _SIGCONTEXTINFO_H
#define _SIGCONTEXTINFO_H
#include <bits/types/siginfo_t.h>
/* The sparc64 kernel signal frame for SA_SIGINFO is defined as:
struct rt_signal_frame
{
struct sparc_stackf ss;
siginfo_t info;
struct pt_regs regs;
__siginfo_fpu_t *fpu_save;
stack_t stack;
sigset_t mask;
__siginfo_rwin_t *rwin_save;
};
Unlike other architectures, sparc64 passe the siginfo_t INFO pointer
as the third argument to a sa_sigaction handler with SA_SIGINFO enabled. */
#ifndef STACK_BIAS
#define STACK_BIAS 2047
#endif
struct pt_regs
{
unsigned long int u_regs[16];
unsigned long int tstate;
unsigned long int tpc;
unsigned long int tnpc;
unsigned int y;
unsigned int magic;
};
static inline uintptr_t
sigcontext_get_pc (const siginfo_t *ctx)
{
struct pt_regs *regs = (struct pt_regs*) ((siginfo_t *)(ctx) + 1);
return regs->tpc;
}
#endif
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