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/* Copyright (C) 1999-2022 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
/* The sparc32 kernel signal frame for SA_SIGINFO is defined as:
struct rt_signal_frame32
{
struct sparc_stackf32 ss;
compat_siginfo_t info;
struct pt_regs32 regs; <- void *ctx
compat_sigset_t mask;
u32 fpu_save;
unsigned int insns[2];
compat_stack_t stack;
unsigned int extra_size;
siginfo_extra_v8plus_t v8plus;
u32 rwin_save;
} __attribute__((aligned(8)));
Unlike other architectures, sparc32 passes pt_regs32 REGS pointer as
the third argument to a sa_sigaction handler with SA_SIGINFO enabled. */
struct pt_regs32
{
unsigned int psr;
unsigned int pc;
unsigned int npc;
unsigned int y;
unsigned int u_regs[16];
};
static inline uintptr_t
sigcontext_get_pc (const struct pt_regs32 *ctx)
{
return ctx->pc;
}
#endif
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