96a5a1d378
Many tdep files need to perform conversions between two floating-point types, usually when accessing FP registers. Most targets now use the convert_typed_floating helper routine to do so. However, a small number still use the old method of converting via a DOUBLEST. Since we want to get rid of DOUBLEST, these targets need to be moved to the new method as well. The main obstacle is that for convert_typed_floating we need an actual *type*, not just a floatformat. In arm-tdep.c, this is very straightforward, since there is already a type using the ARM extended floatformat. For sh-tdep.c and sh64-tdep.c, no such type already exists, so I've added one to the gdbarch_tdep struct as done on other targets. gdb/ChangeLog 2017-09-27 Ulrich Weigand <uweigand@de.ibm.com> * arm-tdep.c: (convert_from_extended): Remove. (convert_to_extended): Likewise. (arm_extract_return_value): Use convert_typed_floating. (arm_store_return_value): Likewise. * sh-tdep.h (struct gdbarch_tdep): Add sh_littlebyte_bigword_type. * sh-tdep.c: Do not include "floatformat.h". (sh_littlebyte_bigword_type): New function. (sh_register_convert_to_virtual): Use convert_typed_floating. (sh_register_convert_to_raw): Likewise. * sh64-tdep.c: (struct gdbarch_tdep): Add sh_littlebyte_bigword_type. (sh64_littlebyte_bigword_type): New function. (sh64_extract_return_value): Use convert_typed_floating. (sh64_register_convert_to_virtual): Likewise. (sh64_register_convert_to_raw): Likewise.
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/* Target-specific definition for a Renesas Super-H.
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Copyright (C) 1993-2017 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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/* 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 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;
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int sizeof_gregset;
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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;
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int sizeof_fpregset;
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/* ISA-specific data types. */
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struct type *sh_littlebyte_bigword_type;
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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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