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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/* Machine-dependent signal context structure for GNU Hurd. Alpha version.
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Copyright (C) 1994, 1997 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SIGNAL_H
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# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
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#endif
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/* Signal handlers are actually called:
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void handler (int sig, int code, struct sigcontext *scp); */
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/* State of this thread when the signal was taken. */
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struct sigcontext
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{
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/* These first members are machine-independent. */
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long int sc_onstack; /* Nonzero if running on sigstack. */
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__sigset_t sc_mask; /* Blocked signals to restore. */
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/* MiG reply port this thread is using. */
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unsigned long int sc_reply_port;
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/* Port this thread is doing an interruptible RPC on. */
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unsigned long int sc_intr_port;
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/* Error code associated with this signal (interpreted as `error_t'). */
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int sc_error;
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/* All following members are machine-dependent. The rest of this
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structure is written to be laid out identically to:
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{
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struct alpha_thread_state basic;
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struct alpha_exc_state exc;
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struct alpha_float_state fpu;
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}
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trampoline.c knows this, so it must be changed if this changes. */
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#define sc_alpha_thread_state sc_regs /* Beginning of correspondence. */
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long int sc_regs[31]; /* General registers $0..$30. */
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long int sc_pc; /* Program counter. */
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/* struct alpha_exc_state */
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#define sc_alpha_exc_state sc_badvaddr
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unsigned long int sc_badvaddr;
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unsigned int sc_cause; /* Machine-level trap code. */
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#define SC_CAUSE_SET_SSTEP 1
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int sc_used_fpa; /* Nonzero if FPU was used. */
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/* struct alpha_float_state
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This is only filled in if sc_used_fpa is nonzero. */
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#define sc_alpha_float_state sc_fpregs
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double sc_fpregs[31]; /* Floating point registers $f0..$f30. */
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long int sc_fpcsr; /* Floating point control/status register. */
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};
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