/* Native-dependent code for GNU/Linux x86-64.
- Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Free Software Foundation, Inc.
Contributed by Jiri Smid, SuSE Labs.
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
+ 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,
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "inferior.h"
#include "gdbcore.h"
#include "regcache.h"
#include "linux-nat.h"
+#include "amd64-linux-tdep.h"
#include "gdb_assert.h"
#include "gdb_string.h"
RIP * 8, EFLAGS * 8, /* %rip, %eflags */
CS * 8, SS * 8, /* %cs, %ss */
DS * 8, ES * 8, /* %ds, %es */
- FS * 8, GS * 8 /* %fs, %gs */
+ FS * 8, GS * 8, /* %fs, %gs */
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ ORIG_RAX * 8
};
\f
in *GREGSETP. */
void
-supply_gregset (elf_gregset_t *gregsetp)
+supply_gregset (struct regcache *regcache, const elf_gregset_t *gregsetp)
{
- amd64_supply_native_gregset (current_regcache, gregsetp, -1);
+ amd64_supply_native_gregset (regcache, gregsetp, -1);
}
/* Fill register REGNUM (if it is a general-purpose register) in
do this for all registers. */
void
-fill_gregset (elf_gregset_t *gregsetp, int regnum)
+fill_gregset (const struct regcache *regcache,
+ elf_gregset_t *gregsetp, int regnum)
{
- amd64_collect_native_gregset (current_regcache, gregsetp, regnum);
+ amd64_collect_native_gregset (regcache, gregsetp, regnum);
}
/* Transfering floating-point registers between GDB, inferiors and cores. */
values in *FPREGSETP. */
void
-supply_fpregset (elf_fpregset_t *fpregsetp)
+supply_fpregset (struct regcache *regcache, const elf_fpregset_t *fpregsetp)
{
- amd64_supply_fxsave (current_regcache, -1, fpregsetp);
+ amd64_supply_fxsave (regcache, -1, fpregsetp);
}
/* Fill register REGNUM (if it is a floating-point or SSE register) in
-1, do this for all registers. */
void
-fill_fpregset (elf_fpregset_t *fpregsetp, int regnum)
+fill_fpregset (const struct regcache *regcache,
+ elf_fpregset_t *fpregsetp, int regnum)
{
- amd64_collect_fxsave (current_regcache, regnum, fpregsetp);
+ amd64_collect_fxsave (regcache, regnum, fpregsetp);
}
\f
this for all registers (including the floating point and SSE
registers). */
-void
-fetch_inferior_registers (int regnum)
+static void
+amd64_linux_fetch_inferior_registers (struct regcache *regcache, int regnum)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
int tid;
/* GNU/Linux LWP ID's are process ID's. */
if (tid == 0)
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
- if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
+ if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
elf_gregset_t regs;
if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
- perror_with_name ("Couldn't get registers");
+ perror_with_name (_("Couldn't get registers"));
- amd64_supply_native_gregset (current_regcache, ®s, -1);
+ amd64_supply_native_gregset (regcache, ®s, -1);
if (regnum != -1)
return;
}
- if (regnum == -1 || regnum >= AMD64_ST0_REGNUM)
+ if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
{
elf_fpregset_t fpregs;
if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
- perror_with_name ("Couldn't get floating point status");
+ perror_with_name (_("Couldn't get floating point status"));
- amd64_supply_fxsave (current_regcache, -1, &fpregs);
+ amd64_supply_fxsave (regcache, -1, &fpregs);
}
}
-1, do this for all registers (including the floating-point and SSE
registers). */
-void
-store_inferior_registers (int regnum)
+static void
+amd64_linux_store_inferior_registers (struct regcache *regcache, int regnum)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
int tid;
/* GNU/Linux LWP ID's are process ID's. */
if (tid == 0)
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
- if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
+ if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
elf_gregset_t regs;
if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
- perror_with_name ("Couldn't get registers");
+ perror_with_name (_("Couldn't get registers"));
- amd64_collect_native_gregset (current_regcache, ®s, regnum);
+ amd64_collect_native_gregset (regcache, ®s, regnum);
if (ptrace (PTRACE_SETREGS, tid, 0, (long) ®s) < 0)
- perror_with_name ("Couldn't write registers");
+ perror_with_name (_("Couldn't write registers"));
if (regnum != -1)
return;
}
- if (regnum == -1 || regnum >= AMD64_ST0_REGNUM)
+ if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
{
elf_fpregset_t fpregs;
if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
- perror_with_name ("Couldn't get floating point status");
+ perror_with_name (_("Couldn't get floating point status"));
- amd64_collect_fxsave (current_regcache, regnum, &fpregs);
+ amd64_collect_fxsave (regcache, regnum, &fpregs);
if (ptrace (PTRACE_SETFPREGS, tid, 0, (long) &fpregs) < 0)
- perror_with_name ("Couldn't write floating point status");
+ perror_with_name (_("Couldn't write floating point status"));
return;
}
}
\f
+/* Support for debug registers. */
+
+static unsigned long amd64_linux_dr[DR_CONTROL + 1];
static unsigned long
-amd64_linux_dr_get (int regnum)
+amd64_linux_dr_get (ptid_t ptid, int regnum)
{
int tid;
unsigned long value;
- /* FIXME: kettenis/2001-01-29: It's not clear what we should do with
- multi-threaded processes here. For now, pretend there is just
- one thread. */
- tid = PIDGET (inferior_ptid);
+ tid = TIDGET (ptid);
+ if (tid == 0)
+ tid = PIDGET (ptid);
/* FIXME: kettenis/2001-03-27: Calling perror_with_name if the
ptrace call fails breaks debugging remote targets. The correct
way to fix this is to add the hardware breakpoint and watchpoint
- stuff to the target vectore. For now, just return zero if the
+ stuff to the target vector. For now, just return zero if the
ptrace call fails. */
errno = 0;
- value = ptrace (PT_READ_U, tid,
+ value = ptrace (PTRACE_PEEKUSER, tid,
offsetof (struct user, u_debugreg[regnum]), 0);
if (errno != 0)
#if 0
- perror_with_name ("Couldn't read debug register");
+ perror_with_name (_("Couldn't read debug register"));
#else
return 0;
#endif
}
static void
-amd64_linux_dr_set (int regnum, unsigned long value)
+amd64_linux_dr_set (ptid_t ptid, int regnum, unsigned long value)
{
int tid;
- /* FIXME: kettenis/2001-01-29: It's not clear what we should do with
- multi-threaded processes here. For now, pretend there is just
- one thread. */
- tid = PIDGET (inferior_ptid);
+ tid = TIDGET (ptid);
+ if (tid == 0)
+ tid = PIDGET (ptid);
errno = 0;
- ptrace (PT_WRITE_U, tid, offsetof (struct user, u_debugreg[regnum]), value);
+ ptrace (PTRACE_POKEUSER, tid,
+ offsetof (struct user, u_debugreg[regnum]), value);
if (errno != 0)
- perror_with_name ("Couldn't write debug register");
+ perror_with_name (_("Couldn't write debug register"));
}
void
amd64_linux_dr_set_control (unsigned long control)
{
- amd64_linux_dr_set (DR_CONTROL, control);
+ struct lwp_info *lp;
+ ptid_t ptid;
+
+ amd64_linux_dr[DR_CONTROL] = control;
+ ALL_LWPS (lp, ptid)
+ amd64_linux_dr_set (ptid, DR_CONTROL, control);
}
void
amd64_linux_dr_set_addr (int regnum, CORE_ADDR addr)
{
+ struct lwp_info *lp;
+ ptid_t ptid;
+
gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR);
- amd64_linux_dr_set (DR_FIRSTADDR + regnum, addr);
+ amd64_linux_dr[DR_FIRSTADDR + regnum] = addr;
+ ALL_LWPS (lp, ptid)
+ amd64_linux_dr_set (ptid, DR_FIRSTADDR + regnum, addr);
}
void
amd64_linux_dr_reset_addr (int regnum)
{
- gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR);
-
- amd64_linux_dr_set (DR_FIRSTADDR + regnum, 0L);
+ amd64_linux_dr_set_addr (regnum, 0);
}
unsigned long
amd64_linux_dr_get_status (void)
{
- return amd64_linux_dr_get (DR_STATUS);
+ return amd64_linux_dr_get (inferior_ptid, DR_STATUS);
+}
+
+static void
+amd64_linux_new_thread (ptid_t ptid)
+{
+ int i;
+
+ for (i = DR_FIRSTADDR; i <= DR_LASTADDR; i++)
+ amd64_linux_dr_set (ptid, i, amd64_linux_dr[i]);
+
+ amd64_linux_dr_set (ptid, DR_CONTROL, amd64_linux_dr[DR_CONTROL]);
}
\f
}
\f
-void
-child_post_startup_inferior (ptid_t ptid)
+static void (*super_post_startup_inferior) (ptid_t ptid);
+
+static void
+amd64_linux_child_post_startup_inferior (ptid_t ptid)
{
i386_cleanup_dregs ();
- linux_child_post_startup_inferior (ptid);
+ super_post_startup_inferior (ptid);
}
\f
void
_initialize_amd64_linux_nat (void)
{
+ struct target_ops *t;
+
amd64_native_gregset32_reg_offset = amd64_linux_gregset32_reg_offset;
amd64_native_gregset32_num_regs = I386_LINUX_NUM_REGS;
amd64_native_gregset64_reg_offset = amd64_linux_gregset64_reg_offset;
+ amd64_native_gregset64_num_regs = AMD64_LINUX_NUM_REGS;
gdb_assert (ARRAY_SIZE (amd64_linux_gregset32_reg_offset)
== amd64_native_gregset32_num_regs);
gdb_assert (ARRAY_SIZE (amd64_linux_gregset64_reg_offset)
== amd64_native_gregset64_num_regs);
+
+ /* Fill in the generic GNU/Linux methods. */
+ t = linux_target ();
+
+ i386_use_watchpoints (t);
+
+ /* Override the GNU/Linux inferior startup hook. */
+ super_post_startup_inferior = t->to_post_startup_inferior;
+ t->to_post_startup_inferior = amd64_linux_child_post_startup_inferior;
+
+ /* Add our register access methods. */
+ t->to_fetch_registers = amd64_linux_fetch_inferior_registers;
+ t->to_store_registers = amd64_linux_store_inferior_registers;
+
+ /* Register the target. */
+ linux_nat_add_target (t);
+ linux_nat_set_new_thread (t, amd64_linux_new_thread);
}
projects / thirdparty / binutils-gdb.git / blobdiff