2e077f5e67
This patch moves the native target wordsize getter for ppc linux to nat/ so that it can be used to simplify ppc_arch_setup in gdbserver. The ptrace call used to get MSR for this is ultimately the same as before, but it is no longer necessary to create a temporary regcache to call fetch_inferior_registers. gdb/ChangeLog: 2018-05-22 Pedro Franco de Carvalho <pedromfc@linux.vnet.ibm.com> * configure.nat <linux powerpc>: Add ppc-linux.o to NATDEPFILES. * ppc-linux-nat.c (ppc_linux_target_wordsize): Move to nat/ppc-linux.c. (ppc_linux_nat_target::auxv_parse): Get thread id tid. Call ppc_linux_target_wordsize with tid. (ppc_linux_nat_target::read_description): Call ppc_linux_target wordsize with tid. * nat/ppc-linux.c: Include nat/gdb_ptrace.h. (ppc64_64bit_inferior_p): Add static and inline specifiers. (ppc_linux_target_wordsize): Move here from ppc-linux-nat.c. Add tid parameter. Remove static specifier. * nat/ppc-linux.h (ppc64_64bit_inferior_p): Remove declaration. (ppc_linux_target_wordsize): New declaration. gdb/gdbserver/ChangeLog: 2018-05-22 Pedro Franco de Carvalho <pedromfc@linux.vnet.ibm.com> * linux-ppc-low.c (ppc_arch_setup): Remove code for getting the wordsize of the inferior. Call ppc_linux_target_wordsize.
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
|
|
|
|
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 PPC_LINUX_H
|
|
#define PPC_LINUX_H 1
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/cputable.h>
|
|
|
|
/* This sometimes isn't defined. */
|
|
#ifndef PT_ORIG_R3
|
|
#define PT_ORIG_R3 34
|
|
#endif
|
|
#ifndef PT_TRAP
|
|
#define PT_TRAP 40
|
|
#endif
|
|
|
|
/* The PPC_FEATURE_* defines should be provided by <asm/cputable.h>.
|
|
If they aren't, we can provide them ourselves (their values are fixed
|
|
because they are part of the kernel ABI). They are used in the AT_HWCAP
|
|
entry of the AUXV. */
|
|
#ifndef PPC_FEATURE_CELL
|
|
#define PPC_FEATURE_CELL 0x00010000
|
|
#endif
|
|
#ifndef PPC_FEATURE_BOOKE
|
|
#define PPC_FEATURE_BOOKE 0x00008000
|
|
#endif
|
|
#ifndef PPC_FEATURE_HAS_DFP
|
|
#define PPC_FEATURE_HAS_DFP 0x00000400 /* Decimal Floating Point. */
|
|
#endif
|
|
#ifndef PPC_FEATURE_HAS_VSX
|
|
#define PPC_FEATURE_HAS_VSX 0x00000080
|
|
#endif
|
|
#ifndef PPC_FEATURE_HAS_ALTIVEC
|
|
#define PPC_FEATURE_HAS_ALTIVEC 0x10000000
|
|
#endif
|
|
#ifndef PPC_FEATURE_HAS_SPE
|
|
#define PPC_FEATURE_HAS_SPE 0x00800000
|
|
#endif
|
|
|
|
/* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a
|
|
configure time check. Some older glibc's (for instance 2.2.1)
|
|
don't have a specific powerpc version of ptrace.h, and fall back on
|
|
a generic one. In such cases, sys/ptrace.h defines
|
|
PTRACE_GETFPXREGS and PTRACE_SETFPXREGS to the same numbers that
|
|
ppc kernel's asm/ptrace.h defines PTRACE_GETVRREGS and
|
|
PTRACE_SETVRREGS to be. This also makes a configury check pretty
|
|
much useless. */
|
|
|
|
/* These definitions should really come from the glibc header files,
|
|
but Glibc doesn't know about the vrregs yet. */
|
|
#ifndef PTRACE_GETVRREGS
|
|
#define PTRACE_GETVRREGS 18
|
|
#define PTRACE_SETVRREGS 19
|
|
#endif
|
|
|
|
/* PTRACE requests for POWER7 VSX registers. */
|
|
#ifndef PTRACE_GETVSXREGS
|
|
#define PTRACE_GETVSXREGS 27
|
|
#define PTRACE_SETVSXREGS 28
|
|
#endif
|
|
|
|
/* Similarly for the ptrace requests for getting / setting the SPE
|
|
registers (ev0 -- ev31, acc, and spefscr). See the description of
|
|
gdb_evrregset_t for details. */
|
|
#ifndef PTRACE_GETEVRREGS
|
|
#define PTRACE_GETEVRREGS 20
|
|
#define PTRACE_SETEVRREGS 21
|
|
#endif
|
|
|
|
/* Return the wordsize of the target, either 4 or 8 bytes. */
|
|
int ppc_linux_target_wordsize (int tid);
|
|
|
|
#endif
|