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56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* Copyright (C) 1999-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _SIGCONTEXTINFO_H
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#define _SIGCONTEXTINFO_H
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/* The sparc32 kernel signal frame for SA_SIGINFO is defined as:
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struct rt_signal_frame32
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{
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struct sparc_stackf32 ss;
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compat_siginfo_t info;
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struct pt_regs32 regs; <- void *ctx
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compat_sigset_t mask;
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u32 fpu_save;
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unsigned int insns[2];
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compat_stack_t stack;
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unsigned int extra_size;
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siginfo_extra_v8plus_t v8plus;
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u32 rwin_save;
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} __attribute__((aligned(8)));
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Unlike other architectures, sparc32 passes pt_regs32 REGS pointer as
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the third argument to a sa_sigaction handler with SA_SIGINFO enabled. */
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struct pt_regs32
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{
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unsigned int psr;
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unsigned int pc;
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unsigned int npc;
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unsigned int y;
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unsigned int u_regs[16];
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};
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static inline uintptr_t
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sigcontext_get_pc (const struct pt_regs32 *ctx)
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{
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return ctx->pc;
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}
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#endif
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