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-rw-r--r--gdb/mips-linux-nat.c263
1 files changed, 0 insertions, 263 deletions
diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
deleted file mode 100644
index 985ff27..0000000
--- a/gdb/mips-linux-nat.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/* Native-dependent code for GNU/Linux on MIPS processors.
-
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
- 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 2 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, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
-
-#include "defs.h"
-#include "inferior.h"
-#include "mips-tdep.h"
-#include "target.h"
-#include "linux-nat.h"
-#include "mips-linux-tdep.h"
-
-#include "gdb_proc_service.h"
-
-#include <sys/ptrace.h>
-
-#ifndef PTRACE_GET_THREAD_AREA
-#define PTRACE_GET_THREAD_AREA 25
-#endif
-
-/* Assume that we have PTRACE_GETREGS et al. support. If we do not,
- we'll clear this and use PTRACE_PEEKUSER instead. */
-static int have_ptrace_regsets = 1;
-
-/* Saved function pointers to fetch and store a single register using
- PTRACE_PEEKUSER and PTRACE_POKEUSER. */
-
-void (*super_fetch_registers) (int);
-void (*super_store_registers) (int);
-
-/* Pseudo registers can not be read. ptrace does not provide a way to
- read (or set) MIPS_PS_REGNUM, and there's no point in reading or
- setting MIPS_ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or
- FCRIR via ptrace(). */
-
-int
-mips_linux_cannot_fetch_register (int regno)
-{
- if (regno > MIPS_ZERO_REGNUM && regno < MIPS_ZERO_REGNUM + 32)
- return 0;
- else if (regno >= mips_regnum (current_gdbarch)->fp0
- && regno <= mips_regnum (current_gdbarch)->fp0 + 32)
- return 0;
- else if (regno == mips_regnum (current_gdbarch)->lo
- || regno == mips_regnum (current_gdbarch)->hi
- || regno == mips_regnum (current_gdbarch)->badvaddr
- || regno == mips_regnum (current_gdbarch)->cause
- || regno == mips_regnum (current_gdbarch)->pc
- || regno == mips_regnum (current_gdbarch)->fp_control_status
- || regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
- return 0;
- else
- return 1;
-}
-
-int
-mips_linux_cannot_store_register (int regno)
-{
- if (regno > MIPS_ZERO_REGNUM && regno < MIPS_ZERO_REGNUM + 32)
- return 0;
- else if (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 32)
- return 0;
- else if (regno == mips_regnum (current_gdbarch)->lo
- || regno == mips_regnum (current_gdbarch)->hi
- || regno == mips_regnum (current_gdbarch)->pc
- || regno == mips_regnum (current_gdbarch)->fp_control_status)
- return 0;
- else
- return 1;
-}
-
-/* Fetch the thread-local storage pointer for libthread_db. */
-
-ps_err_e
-ps_get_thread_area (const struct ps_prochandle *ph,
- lwpid_t lwpid, int idx, void **base)
-{
- if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
- return PS_ERR;
-
- /* IDX is the bias from the thread pointer to the beginning of the
- thread descriptor. It has to be subtracted due to implementation
- quirks in libthread_db. */
- *base = (void *) ((char *)*base - idx);
-
- return PS_OK;
-}
-
-/* Fetch REGNO (or all registers if REGNO == -1) from the target
- using PTRACE_GETREGS et al. */
-
-static void
-mips64_linux_regsets_fetch_registers (int regno)
-{
- int is_fp;
- int tid;
-
- if (regno >= mips_regnum (current_gdbarch)->fp0
- && regno <= mips_regnum (current_gdbarch)->fp0 + 32)
- is_fp = 1;
- else if (regno == mips_regnum (current_gdbarch)->fp_control_status)
- is_fp = 1;
- else if (regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
- is_fp = 1;
- else
- is_fp = 0;
-
- tid = ptid_get_lwp (inferior_ptid);
- if (tid == 0)
- tid = ptid_get_pid (inferior_ptid);
-
- if (regno == -1 || !is_fp)
- {
- mips64_elf_gregset_t regs;
-
- if (ptrace (PTRACE_GETREGS, tid, 0L, (PTRACE_TYPE_ARG3) &regs) == -1)
- {
- if (errno == EIO)
- {
- have_ptrace_regsets = 0;
- return;
- }
- perror_with_name (_("Couldn't get registers"));
- }
-
- mips64_supply_gregset (&regs);
- }
-
- if (regno == -1 || is_fp)
- {
- mips64_elf_fpregset_t fp_regs;
-
- if (ptrace (PTRACE_GETFPREGS, tid, 0L,
- (PTRACE_TYPE_ARG3) &fp_regs) == -1)
- {
- if (errno == EIO)
- {
- have_ptrace_regsets = 0;
- return;
- }
- perror_with_name (_("Couldn't get FP registers"));
- }
-
- mips64_supply_fpregset (&fp_regs);
- }
-}
-
-/* Store REGNO (or all registers if REGNO == -1) to the target
- using PTRACE_SETREGS et al. */
-
-static void
-mips64_linux_regsets_store_registers (int regno)
-{
- int is_fp;
- int tid;
-
- if (regno >= mips_regnum (current_gdbarch)->fp0
- && regno <= mips_regnum (current_gdbarch)->fp0 + 32)
- is_fp = 1;
- else if (regno == mips_regnum (current_gdbarch)->fp_control_status)
- is_fp = 1;
- else if (regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
- is_fp = 1;
- else
- is_fp = 0;
-
- tid = ptid_get_lwp (inferior_ptid);
- if (tid == 0)
- tid = ptid_get_pid (inferior_ptid);
-
- if (regno == -1 || !is_fp)
- {
- mips64_elf_gregset_t regs;
-
- if (ptrace (PTRACE_GETREGS, tid, 0L, (PTRACE_TYPE_ARG3) &regs) == -1)
- perror_with_name (_("Couldn't get registers"));
-
- mips64_fill_gregset (&regs, regno);
-
- if (ptrace (PTRACE_SETREGS, tid, 0L, (PTRACE_TYPE_ARG3) &regs) == -1)
- perror_with_name (_("Couldn't set registers"));
- }
-
- if (regno == -1 || is_fp)
- {
- mips64_elf_fpregset_t fp_regs;
-
- if (ptrace (PTRACE_GETFPREGS, tid, 0L,
- (PTRACE_TYPE_ARG3) &fp_regs) == -1)
- perror_with_name (_("Couldn't get FP registers"));
-
- mips64_fill_fpregset (&fp_regs, regno);
-
- if (ptrace (PTRACE_SETFPREGS, tid, 0L,
- (PTRACE_TYPE_ARG3) &fp_regs) == -1)
- perror_with_name (_("Couldn't set FP registers"));
- }
-}
-
-/* Fetch REGNO (or all registers if REGNO == -1) from the target
- using any working method. */
-
-static void
-mips64_linux_fetch_registers (int regnum)
-{
- /* Unless we already know that PTRACE_GETREGS does not work, try it. */
- if (have_ptrace_regsets)
- mips64_linux_regsets_fetch_registers (regnum);
-
- /* If we know, or just found out, that PTRACE_GETREGS does not work, fall
- back to PTRACE_PEEKUSER. */
- if (!have_ptrace_regsets)
- super_fetch_registers (regnum);
-}
-
-/* Store REGNO (or all registers if REGNO == -1) to the target
- using any working method. */
-
-static void
-mips64_linux_store_registers (int regnum)
-{
- /* Unless we already know that PTRACE_GETREGS does not work, try it. */
- if (have_ptrace_regsets)
- mips64_linux_regsets_store_registers (regnum);
-
- /* If we know, or just found out, that PTRACE_GETREGS does not work, fall
- back to PTRACE_PEEKUSER. */
- if (!have_ptrace_regsets)
- super_store_registers (regnum);
-}
-
-void _initialize_mips_linux_nat (void);
-
-void
-_initialize_mips_linux_nat (void)
-{
- struct target_ops *t = linux_target ();
-
- super_fetch_registers = t->to_fetch_registers;
- super_store_registers = t->to_store_registers;
-
- t->to_fetch_registers = mips64_linux_fetch_registers;
- t->to_store_registers = mips64_linux_store_registers;
-
- add_target (t);
-}
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