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345bd07cce
I would like to be able to use non-trivial types in gdbarch_tdep types. This is not possible at the moment (in theory), because of the one definition rule. To allow it, rename all gdbarch_tdep types to <arch>_gdbarch_tdep, and make them inherit from a gdbarch_tdep base class. The inheritance is necessary to be able to pass pointers to all these <arch>_gdbarch_tdep objects to gdbarch_alloc, which takes a pointer to gdbarch_tdep. These objects are never deleted through a base class pointer, so I didn't include a virtual destructor. In the future, if gdbarch objects deletable, I could imagine that the gdbarch_tdep objects could become owned by the gdbarch objects, and then it would become useful to have a virtual destructor (so that the gdbarch object can delete the owned gdbarch_tdep object). But that's not necessary right now. It turns out that RISC-V already has a gdbarch_tdep that is non-default-constructible, so that provides a good motivation for this change. Most changes are fairly straightforward, mostly needing to add some casts all over the place. There is however the xtensa architecture, doing its own little weird thing to define its gdbarch_tdep. I did my best to adapt it, but I can't test those changes. Change-Id: Ic001903f91ddd106bd6ca09a79dabe8df2d69f3b
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/* Target-specific definition for a Renesas Super-H.
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Copyright (C) 1993-2021 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 3 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, see <http://www.gnu.org/licenses/>. */
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#ifndef SH_TDEP_H
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#define SH_TDEP_H
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#include "gdbarch.h"
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/* Contributed by Steve Chamberlain sac@cygnus.com. */
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/* Registers for all SH variants. Used also by sh3-rom.c. */
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enum
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{
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R0_REGNUM = 0,
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STRUCT_RETURN_REGNUM = 2,
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ARG0_REGNUM = 4,
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ARGLAST_REGNUM = 7,
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FP_REGNUM = 14,
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PC_REGNUM = 16,
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PR_REGNUM = 17,
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GBR_REGNUM = 18,
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VBR_REGNUM = 19,
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MACH_REGNUM = 20,
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MACL_REGNUM = 21,
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SR_REGNUM = 22,
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FPUL_REGNUM = 23,
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/* Floating point registers */
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FPSCR_REGNUM = 24,
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FR0_REGNUM = 25,
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FLOAT_ARG0_REGNUM = 29,
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FLOAT_ARGLAST_REGNUM = 36,
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FP_LAST_REGNUM = 40,
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/* sh3,sh4 registers */
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SSR_REGNUM = 41,
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SPC_REGNUM = 42,
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/* DSP registers */
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DSR_REGNUM = 24,
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A0G_REGNUM = 25,
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A0_REGNUM = 26,
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A1G_REGNUM = 27,
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A1_REGNUM = 28,
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M0_REGNUM = 29,
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M1_REGNUM = 30,
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X0_REGNUM = 31,
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X1_REGNUM = 32,
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Y0_REGNUM = 33,
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Y1_REGNUM = 34,
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MOD_REGNUM = 40,
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RS_REGNUM = 43,
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RE_REGNUM = 44,
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DSP_R0_BANK_REGNUM = 51,
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DSP_R7_BANK_REGNUM = 58,
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/* sh2a register */
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R0_BANK0_REGNUM = 43,
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MACHB_REGNUM = 58,
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IVNB_REGNUM = 59,
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PRB_REGNUM = 60,
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GBRB_REGNUM = 61,
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MACLB_REGNUM = 62,
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BANK_REGNUM = 63,
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IBCR_REGNUM = 64,
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IBNR_REGNUM = 65,
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TBR_REGNUM = 66,
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PSEUDO_BANK_REGNUM = 67,
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/* Floating point pseudo registers */
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DR0_REGNUM = 68,
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DR_LAST_REGNUM = 75,
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FV0_REGNUM = 76,
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FV_LAST_REGNUM = 79
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};
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/* This structure describes a register in a core-file. */
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struct sh_corefile_regmap
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{
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int regnum;
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unsigned int offset;
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};
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struct sh_gdbarch_tdep : gdbarch_tdep
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{
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/* Non-NULL when debugging from a core file. Provides the offset
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where each general-purpose register is stored inside the associated
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core file section. */
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struct sh_corefile_regmap *core_gregmap = nullptr;
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int sizeof_gregset = 0;
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/* Non-NULL when debugging from a core file and when FP registers are
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available. Provides the offset where each FP register is stored
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inside the associated core file section. */
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struct sh_corefile_regmap *core_fpregmap = nullptr;
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int sizeof_fpregset = 0;
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/* ISA-specific data types. */
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struct type *sh_littlebyte_bigword_type = nullptr;
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};
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extern const struct regset sh_corefile_gregset;
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void sh_corefile_supply_regset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *regs, size_t len);
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void sh_corefile_collect_regset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *regs, size_t len);
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#endif /* SH_TDEP_H */
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