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Support for collecting and supplying general purpose and floating point registers is provided along with signal frame unwinding. While FreeBSD/arm kernels do populate NT_FPREGSET notes, they are always zero-filled, so this implementation ignores them. Recent FreeBSD/arm kernels generate NT_ARM_VFP notes which are used to supply floating-point registers. As with Linux, the AT_HWCAP feature flags are used to determine the correct target description. gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Add arm-fbsd-tdep.o. (ALLDEPFILES): Add arm-fbsd-tdep.c. * NEWS: Mention new FreeBSD/arm target. * configure.tgt: Add arm*-*-freebsd*. * arm-fbsd-tdep.c: New file. * arm-fbsd-tdep.h: New file.
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/* FreeBSD/arm target support, prototypes.
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Copyright (C) 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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#include "regset.h"
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/* The general-purpose regset consists of 13 R registers, plus SP, LR,
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PC, and CPSR registers. */
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#define ARM_FBSD_SIZEOF_GREGSET (17 * 4)
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/* The VFP regset consists of 32 D registers plus FPSCR, and the whole
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structure is padded to 64-bit alignment. */
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#define ARM_FBSD_SIZEOF_VFPREGSET (33 * 8)
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extern const struct regset arm_fbsd_gregset;
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extern const struct regset arm_fbsd_vfpregset;
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/* Flags passed in AT_HWCAP. */
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#define HWCAP_VFP 0x00000040
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#define HWCAP_NEON 0x00001000
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#define HWCAP_VFPv3 0x00002000
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#define HWCAP_VFPD32 0x00080000
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extern const struct target_desc *
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arm_fbsd_read_description_auxv (struct target_ops *target);
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