9f2e07213a
Current trunk GDB (and gdb-7.8.1 too) fails to build on Aarch64 when -fno-common is enabled. It fails during link stage due to multiple definition of `tdesc_aarch64': ... [ 199s] aarch64-linux-nat.o: In function `initialize_tdesc_aarch64': [ 199s] /home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/features/aarch64.c:11: multiple definition of `tdesc_aarch64' [ 199s] aarch64-tdep.o:/home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/objfiles.h:540: first defined here [ 199s] aarch64-linux-nat.o: In function `initialize_tdesc_aarch64': [ 199s] /home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/features/aarch64.c:11: multiple definition of `tdesc_aarch64' [ 199s] aarch64-tdep.o:/home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/objfiles.h:540: first defined here [ 199s] collect2: error: ld returned 1 exit status [ 199s] make[2]: *** [gdb] Error 1 ... This happens because struct target_desc *tdesc_aarch64 is defined in gdb/features/aarch64.c, which is included by two files (gdb/aarch64-linux-nat.c and gdb/aarch64-tdep.c). gdb/Changelog 2015-02-17 Max Ostapenko <m.ostapenko@partner.samsung.com> PR gdb/17984 * aarch64-linux-nat.c: Don't include features/aarch64.c anymore. (aarch64_linux_read_description): Remove initialize_tdesc_aarch64 call. * aarch64-tdep.h (tdesc_aarch64): Declare.
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/* Common target dependent code for GDB on AArch64 systems.
|
|
|
|
Copyright (C) 2009-2015 Free Software Foundation, Inc.
|
|
Contributed by ARM Ltd.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
#ifndef AARCH64_TDEP_H
|
|
#define AARCH64_TDEP_H
|
|
|
|
/* Forward declarations. */
|
|
struct gdbarch;
|
|
struct regset;
|
|
|
|
/* AArch64 Dwarf register numbering. */
|
|
#define AARCH64_DWARF_X0 0
|
|
#define AARCH64_DWARF_SP 31
|
|
#define AARCH64_DWARF_V0 64
|
|
|
|
/* Register numbers of various important registers. */
|
|
enum aarch64_regnum
|
|
{
|
|
AARCH64_X0_REGNUM, /* First integer register */
|
|
|
|
/* Frame register in AArch64 code, if used. */
|
|
AARCH64_FP_REGNUM = AARCH64_X0_REGNUM + 29,
|
|
AARCH64_LR_REGNUM = AARCH64_X0_REGNUM + 30, /* Return address */
|
|
AARCH64_SP_REGNUM, /* Stack pointer */
|
|
AARCH64_PC_REGNUM, /* Program counter */
|
|
AARCH64_CPSR_REGNUM, /* Contains status register */
|
|
AARCH64_V0_REGNUM, /* First floating point / vector register */
|
|
|
|
/* Last floating point / vector register */
|
|
AARCH64_V31_REGNUM = AARCH64_V0_REGNUM + 31,
|
|
AARCH64_FPSR_REGNUM, /* Floating point status register */
|
|
AARCH64_FPCR_REGNUM, /* Floating point control register */
|
|
|
|
/* Other useful registers. */
|
|
|
|
/* Last integer-like argument */
|
|
AARCH64_LAST_X_ARG_REGNUM = AARCH64_X0_REGNUM + 7,
|
|
AARCH64_STRUCT_RETURN_REGNUM = AARCH64_X0_REGNUM + 8,
|
|
AARCH64_LAST_V_ARG_REGNUM = AARCH64_V0_REGNUM + 7
|
|
};
|
|
|
|
/* Size of integer registers. */
|
|
#define X_REGISTER_SIZE 8
|
|
#define B_REGISTER_SIZE 1
|
|
#define H_REGISTER_SIZE 2
|
|
#define S_REGISTER_SIZE 4
|
|
#define D_REGISTER_SIZE 8
|
|
#define V_REGISTER_SIZE 16
|
|
#define Q_REGISTER_SIZE 16
|
|
|
|
/* Total number of general (X) registers. */
|
|
#define AARCH64_X_REGISTER_COUNT 32
|
|
|
|
/* Target-dependent structure in gdbarch. */
|
|
struct gdbarch_tdep
|
|
{
|
|
/* Lowest address at which instructions will appear. */
|
|
CORE_ADDR lowest_pc;
|
|
|
|
/* Offset to PC value in jump buffer. If this is negative, longjmp
|
|
support will be disabled. */
|
|
int jb_pc;
|
|
|
|
/* And the size of each entry in the buf. */
|
|
size_t jb_elt_size;
|
|
|
|
/* Types for AdvSISD registers. */
|
|
struct type *vnq_type;
|
|
struct type *vnd_type;
|
|
struct type *vns_type;
|
|
struct type *vnh_type;
|
|
struct type *vnb_type;
|
|
};
|
|
|
|
extern struct target_desc *tdesc_aarch64;
|
|
|
|
#endif /* aarch64-tdep.h */
|