From 72dd53ade3c0be284deb043926cccffa2455195e Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 8 Nov 1994 23:32:22 +0000 Subject: [PATCH] Initial revision --- sysdeps/mach/hurd/alpha/longjmp-ctx.c | 38 ++++++++++++++++++ sysdeps/mach/hurd/alpha/sigcontext.h | 56 +++++++++++++++++++++++++++ 2 files changed, 94 insertions(+) create mode 100644 sysdeps/mach/hurd/alpha/longjmp-ctx.c create mode 100644 sysdeps/mach/hurd/alpha/sigcontext.h diff --git a/sysdeps/mach/hurd/alpha/longjmp-ctx.c b/sysdeps/mach/hurd/alpha/longjmp-ctx.c new file mode 100644 index 0000000000..51fd5c5b50 --- /dev/null +++ b/sysdeps/mach/hurd/alpha/longjmp-ctx.c @@ -0,0 +1,38 @@ +/* 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 +#include +#include + +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)); +} diff --git a/sysdeps/mach/hurd/alpha/sigcontext.h b/sysdeps/mach/hurd/alpha/sigcontext.h new file mode 100644 index 0000000000..5767e8be4c --- /dev/null +++ b/sysdeps/mach/hurd/alpha/sigcontext.h @@ -0,0 +1,56 @@ +/* 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. */ + };