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99633aa4f8
* sparc-tdep.h: New file. * sparc-tdep.c (elf-bfd.h): Include. (SPARC_HAS_FPU, FP_REGISTER_BYTES, FP_MAX_REGNUM, SPARC_INTREG_SIZE, DUMMY_REG_SAVE_OFFSET, gdbarch_tdep, CALL_DUMMY_CALL_OFFSET): Move out to sparc-tdep.h (sparc_dump_tdep): New function. (_initialize_sparc_tdep): Use gdbarch_register instead of register_gdbarch_init which is deprecated. (process_note_abi_tag_sections, sparc_abi_handler, sparc_abi_handler_list, sparc_gdbarch_register_os_abi): New. (sparc_gdbarch_init): Determine elf os ident key based upon either the elf header or by using process_note_abi_tag_sections. Fix 'gdbarch already exists' test by comparing os_ident as well. As the last action, invoke OS abi_handler if installed.
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/* Common target dependent code for GDB on SPARC systems.
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Copyright 2002 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*
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* Some local macros that have multi-arch and non-multi-arch versions:
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*/
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#if (GDB_MULTI_ARCH > 0)
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/* Does the target have Floating Point registers? */
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#define SPARC_HAS_FPU (gdbarch_tdep (current_gdbarch)->has_fpu)
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/* Number of bytes devoted to Floating Point registers: */
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#define FP_REGISTER_BYTES (gdbarch_tdep (current_gdbarch)->fp_register_bytes)
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/* Highest numbered Floating Point register. */
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#define FP_MAX_REGNUM (gdbarch_tdep (current_gdbarch)->fp_max_regnum)
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/* Size of a general (integer) register: */
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#define SPARC_INTREG_SIZE (gdbarch_tdep (current_gdbarch)->intreg_size)
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/* Offset within the call dummy stack of the saved registers. */
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#define DUMMY_REG_SAVE_OFFSET (gdbarch_tdep (current_gdbarch)->reg_save_offset)
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#else /* non-multi-arch */
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/* Does the target have Floating Point registers? */
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#if defined(TARGET_SPARCLET) || defined(TARGET_SPARCLITE)
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#define SPARC_HAS_FPU 0
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#else
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#define SPARC_HAS_FPU 1
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#endif
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/* Number of bytes devoted to Floating Point registers: */
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#if (GDB_TARGET_IS_SPARC64)
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#define FP_REGISTER_BYTES (64 * 4)
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#else
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#if (SPARC_HAS_FPU)
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#define FP_REGISTER_BYTES (32 * 4)
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#else
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#define FP_REGISTER_BYTES 0
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#endif
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#endif
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/* Highest numbered Floating Point register. */
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#if (GDB_TARGET_IS_SPARC64)
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#define FP_MAX_REGNUM (FP0_REGNUM + 48)
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#else
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#define FP_MAX_REGNUM (FP0_REGNUM + 32)
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#endif
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/* Size of a general (integer) register: */
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#define SPARC_INTREG_SIZE (REGISTER_RAW_SIZE (G0_REGNUM))
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/* Offset within the call dummy stack of the saved registers. */
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#if (GDB_TARGET_IS_SPARC64)
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#define DUMMY_REG_SAVE_OFFSET (128 + 16)
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#else
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#define DUMMY_REG_SAVE_OFFSET 0x60
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#endif
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#endif /* GDB_MULTI_ARCH */
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#ifndef CALL_DUMMY_CALL_OFFSET
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#define CALL_DUMMY_CALL_OFFSET \
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(gdbarch_tdep (current_gdbarch)->call_dummy_call_offset)
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#endif /* CALL_DUMMY_CALL_OFFSET */
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struct gdbarch_tdep
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{
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int os_ident;
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int has_fpu;
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int fp_register_bytes;
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int y_regnum;
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int fp_max_regnum;
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int intreg_size;
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int reg_save_offset;
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int call_dummy_call_offset;
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int print_insn_mach;
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};
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/* How a OS variant tells the SPARC generic code that it can handle an ABI
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type. */
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extern void sparc_gdbarch_register_os_abi (int os_ident,
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void (*init_abi)(struct gdbarch_info,
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struct gdbarch *));
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