/* Target-dependent header for the Nios II architecture, for GDB. Copyright (C) 2012-2014 Free Software Foundation, Inc. Contributed by Mentor Graphics, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef NIOS2_TDEP_H #define NIOS2_TDEP_H /* Registers. */ #define NIOS2_Z_REGNUM 0 /* Zero */ #define NIOS2_R2_REGNUM 2 /* used for return value */ #define NIOS2_R3_REGNUM 3 /* used for return value */ /* Used for hidden zero argument to store ptr to struct return value. */ #define NIOS2_R4_REGNUM 4 #define NIOS2_R7_REGNUM 7 #define NIOS2_GP_REGNUM 26 /* Global Pointer */ #define NIOS2_SP_REGNUM 27 /* Stack Pointer */ #define NIOS2_FP_REGNUM 28 /* Frame Pointer */ #define NIOS2_EA_REGNUM 29 /* Exception address */ #define NIOS2_BA_REGNUM 30 /* Breakpoint return address */ #define NIOS2_RA_REGNUM 31 /* Return address */ #define NIOS2_PC_REGNUM 32 /* Control registers. */ #define NIOS2_STATUS_REGNUM 33 #define NIOS2_ESTATUS_REGNUM 34 #define NIOS2_BSTATUS_REGNUM 35 #define NIOS2_IENABLE_REGNUM 36 #define NIOS2_IPENDING_REGNUM 37 #define NIOS2_CPUID_REGNUM 38 #define NIOS2_EXCEPTION_REGNUM 40 #define NIOS2_PTEADDR_REGNUM 41 #define NIOS2_TLBACC_REGNUM 42 #define NIOS2_TLBMISC_REGNUM 43 #define NIOS2_ECCINJ_REGNUM 44 #define NIOS2_BADADDR_REGNUM 45 #define NIOS2_CONFIG_REGNUM 46 #define NIOS2_MPUBASE_REGNUM 47 #define NIOS2_MPUACC_REGNUM 48 /* R4-R7 are used for argument passing. */ #define NIOS2_FIRST_ARGREG NIOS2_R4_REGNUM #define NIOS2_LAST_ARGREG NIOS2_R7_REGNUM /* Number of all registers. */ #define NIOS2_NUM_REGS 49 /* Size of an instruction, in bytes. */ #define NIOS2_OPCODE_SIZE 4 /* Target-dependent structure in gdbarch. */ struct gdbarch_tdep { /* Assumes FRAME is stopped at a syscall (trap) instruction; returns the expected next PC. */ CORE_ADDR (*syscall_next_pc) (struct frame_info *frame); /* Offset to PC value in jump buffer. If this is negative, longjmp support will be disabled. */ int jb_pc; }; extern struct target_desc *tdesc_nios2_linux; extern struct target_desc *tdesc_nios2; #endif /* NIOS2_TDEP_H */