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Initial revision

This commit is contained in:
Roland McGrath 1994-11-08 23:32:22 +00:00
parent 2131138c90
commit 72dd53ade3
2 changed files with 94 additions and 0 deletions
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38
sysdeps/mach/hurd/alpha/longjmp-ctx.c Normal file
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/* Perform a `longjmp' on a `struct sigcontext'. i386 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. */
#include <setjmp.h>
#include <hurd/signal.h>
#include <string.h>
void
_hurd_longjmp_sigcontext (struct sigcontext *scp, jmp_buf env, int retval)
{
memset (scp, 0, sizeof (*scp));
scp->sc_regs[9] = env[0].__9;
scp->sc_regs[11] = env[0].__11;
scp->sc_regs[12] = env[0].__12;
scp->sc_regs[13] = env[0].__13;
scp->sc_regs[14] = env[0].__14;
scp->sc_regs[15] = (long int) env[0].__fp;
scp->sc_regs[30] = (long int) env[0].__sp;
scp->sc_pc = (long int) env[0].__pc;
memcpy (&scp->sc_fpregs[2], &env[0].__f2, sizeof (double));
}

56
sysdeps/mach/hurd/alpha/sigcontext.h Normal file
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/* 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. */
int sc_onstack; /* Nonzero if running on sigstack. */
sigset_t sc_mask; /* Blocked signals to restore. */
/* MiG reply port this thread is using. */
unsigned int sc_reply_port;
/* Port this thread is doing an interruptible RPC on. */
unsigned 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_float_state fpu;
}
trampoline.c knows this, so it must be changed if this changes. */
#define sc_alpha_thread_state sc_gs /* Beginning of correspondence. */
long int sc_regs[31]; /* General registers $0..$30. */
long int sc_pc; /* Program counter. */
long int sc_ps; /* Processor status. */
/* struct alpha_float_state */
#define sc_alpha_float_state sc_fpregs
long int sc_fpregs[32]; /* Floating point registers $f0..$f31. */
};