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16d5f64295
On some older versions of GNU/Linux, gdbserver now fails to build
due to an undefined reference to NT_ARM_VFP. Same issue on Android,
where this macros is undefined until Android API level 21 (Android
5.0 "Lollipop").
This patch modifies linux-aarch32-low.c to define that macros when
not already defined.
gdb/gdbserver/ChangeLog:
* linux-aarch32-low.c (NT_ARM_VFP): Define if not already defined.
147 lines
3.8 KiB
C
147 lines
3.8 KiB
C
/* Copyright (C) 1995-2015 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 "server.h"
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#include "arch/arm.h"
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#include "linux-low.h"
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#include "linux-aarch32-low.h"
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#include <sys/ptrace.h>
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/* Don't include elf.h if linux/elf.h got included by gdb_proc_service.h.
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On Bionic elf.h and linux/elf.h have conflicting definitions. */
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#ifndef ELFMAG0
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#include <elf.h>
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#endif
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/* Some older versions of GNU/Linux and Android do not define
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the following macros. */
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#ifndef NT_ARM_VFP
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#define NT_ARM_VFP 0x400
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#endif
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/* Collect GP registers from REGCACHE to buffer BUF. */
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void
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arm_fill_gregset (struct regcache *regcache, void *buf)
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{
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int i;
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uint32_t *regs = buf;
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for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
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collect_register (regcache, i, ®s[i]);
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collect_register (regcache, ARM_PS_REGNUM, ®s[16]);
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}
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/* Supply GP registers contents, stored in BUF, to REGCACHE. */
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void
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arm_store_gregset (struct regcache *regcache, const void *buf)
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{
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int i;
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char zerobuf[8];
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const uint32_t *regs = buf;
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memset (zerobuf, 0, 8);
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for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
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supply_register (regcache, i, ®s[i]);
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for (; i < ARM_PS_REGNUM; i++)
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supply_register (regcache, i, zerobuf);
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supply_register (regcache, ARM_PS_REGNUM, ®s[16]);
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}
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/* Collect NUM number of VFP registers from REGCACHE to buffer BUF. */
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void
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arm_fill_vfpregset_num (struct regcache *regcache, void *buf, int num)
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{
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int i, base;
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gdb_assert (num == 16 || num == 32);
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base = find_regno (regcache->tdesc, "d0");
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for (i = 0; i < num; i++)
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collect_register (regcache, base + i, (char *) buf + i * 8);
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collect_register_by_name (regcache, "fpscr", (char *) buf + 32 * 8);
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}
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/* Supply NUM number of VFP registers contents, stored in BUF, to
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REGCACHE. */
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void
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arm_store_vfpregset_num (struct regcache *regcache, const void *buf, int num)
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{
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int i, base;
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gdb_assert (num == 16 || num == 32);
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base = find_regno (regcache->tdesc, "d0");
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for (i = 0; i < num; i++)
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supply_register (regcache, base + i, (char *) buf + i * 8);
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supply_register_by_name (regcache, "fpscr", (char *) buf + 32 * 8);
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}
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static void
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arm_fill_vfpregset (struct regcache *regcache, void *buf)
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{
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arm_fill_vfpregset_num (regcache, buf, 32);
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}
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static void
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arm_store_vfpregset (struct regcache *regcache, const void *buf)
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{
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arm_store_vfpregset_num (regcache, buf, 32);
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}
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/* Register sets with using PTRACE_GETREGSET. */
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static struct regset_info aarch32_regsets[] = {
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{ PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PRSTATUS, 18 * 4,
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GENERAL_REGS,
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arm_fill_gregset, arm_store_gregset },
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{ PTRACE_GETREGSET, PTRACE_SETREGSET, NT_ARM_VFP, 32 * 8 + 4,
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EXTENDED_REGS,
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arm_fill_vfpregset, arm_store_vfpregset },
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{ 0, 0, 0, -1, -1, NULL, NULL }
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};
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static struct regsets_info aarch32_regsets_info =
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{
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aarch32_regsets, /* regsets */
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0, /* num_regsets */
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NULL, /* disabled_regsets */
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};
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struct regs_info regs_info_aarch32 =
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{
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NULL, /* regset_bitmap */
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NULL, /* usrregs */
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&aarch32_regsets_info
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};
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void
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initialize_low_arch_aarch32 (void)
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{
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init_registers_arm_with_neon ();
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initialize_regsets_info (&aarch32_regsets_info);
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}
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