diff options
Diffstat (limited to 'sysdeps/mach/hurd/mips/bits/sigcontext.h')
| -rw-r--r-- | sysdeps/mach/hurd/mips/bits/sigcontext.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/mips/bits/sigcontext.h b/sysdeps/mach/hurd/mips/bits/sigcontext.h new file mode 100644 index 0000000000..81d1f25f25 --- /dev/null +++ b/sysdeps/mach/hurd/mips/bits/sigcontext.h @@ -0,0 +1,71 @@ +/* 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 mips_thread_state ts; + struct mips_exc_state es; + struct mips_float_state fs; + } + trampoline.c knows this, so it must be changed if this changes. */ +#define sc_mips_thread_state sc_gpr /* Beginning of correspondence. */ + int sc_gpr[31]; /* "General" registers; [0] is r1. */ + int sc_mdlo, sc_mdhi; /* Low and high multiplication results. */ + int sc_pc; /* Instruction pointer. */ + + /* struct mips_exc_state */ +#define sc_mips_exc_state sc_cause + unsigned int sc_cause; /* Machine-level trap code. */ +#define SC_CAUSE_SST 0x00000044 + unsigned int sc_badvaddr; + unsigned int sc_coproc_used; /* Which coprocessors the thread has used. */ +#define SC_COPROC_USE_COP0 1 /* (by definition) */ +#define SC_COPROC_USE_COP1 2 /* FPA */ +#define SC_COPROC_USE_FPU SC_COPROC_USE_COP1 +#define SC_COPROC_USE_COP2 4 +#define SC_COPROC_USE_COP3 8 + + /* struct mips_float_state + This is only filled in if the SC_COPROC_USE_FPU bit + is set in sc_coproc_used. */ +#define sc_mips_float_state sc_fpr + int sc_fpr[32]; /* FP registers. */ + int sc_fpcsr; /* FPU status register. */ + int sc_fpeir; /* FP exception instruction register. */ + }; |