mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 18:40:14 +00:00
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/* Machine-dependent signal context structure for GNU Hurd. Alpha version.
|
|
Copyright (C) 1994 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
/* Signal handlers are actually called:
|
|
void handler (int sig, int code, struct sigcontext *scp); */
|
|
|
|
/* State of this thread when the signal was taken. */
|
|
struct sigcontext
|
|
{
|
|
/* These first members are machine-independent. */
|
|
|
|
long int sc_onstack; /* Nonzero if running on sigstack. */
|
|
__sigset_t sc_mask; /* Blocked signals to restore. */
|
|
|
|
/* MiG reply port this thread is using. */
|
|
unsigned long int sc_reply_port;
|
|
|
|
/* Port this thread is doing an interruptible RPC on. */
|
|
unsigned long int sc_intr_port;
|
|
|
|
/* Error code associated with this signal (interpreted as `error_t'). */
|
|
int sc_error;
|
|
|
|
/* All following members are machine-dependent. The rest of this
|
|
structure is written to be laid out identically to:
|
|
{
|
|
struct alpha_thread_state basic;
|
|
struct alpha_exc_state exc;
|
|
struct alpha_float_state fpu;
|
|
}
|
|
trampoline.c knows this, so it must be changed if this changes. */
|
|
|
|
#define sc_alpha_thread_state sc_regs /* Beginning of correspondence. */
|
|
long int sc_regs[31]; /* General registers $0..$30. */
|
|
long int sc_pc; /* Program counter. */
|
|
|
|
/* struct alpha_exc_state */
|
|
#define sc_alpha_exc_state sc_badvaddr
|
|
unsigned long int sc_badvaddr;
|
|
unsigned int sc_cause; /* Machine-level trap code. */
|
|
#define SC_CAUSE_SET_SSTEP 1
|
|
int sc_used_fpa; /* Nonzero if FPU was used. */
|
|
|
|
/* struct alpha_float_state
|
|
This is only filled in if sc_used_fpa is nonzero. */
|
|
#define sc_alpha_float_state sc_fpregs
|
|
double sc_fpregs[31]; /* Floating point registers $f0..$f30. */
|
|
long int sc_fpcsr; /* Floating point control/status register. */
|
|
};
|