/* Native-dependent code for modern i386 BSD's.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "inferior.h"
#include "regcache.h"
-#include "gdb_assert.h"
#include <signal.h>
-#include <stddef.h>
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include "i386-tdep.h"
#include "i387-tdep.h"
+#include "x86bsd-nat.h"
#include "i386bsd-nat.h"
#include "inf-ptrace.h"
\f
static void
i386bsd_supply_gregset (struct regcache *regcache, const void *gregs)
{
- const char *regs = gregs;
+ const char *regs = (const char *) gregs;
int regnum;
for (regnum = 0; regnum < ARRAY_SIZE (i386bsd_r_reg_offset); regnum++)
i386bsd_collect_gregset (const struct regcache *regcache,
void *gregs, int regnum)
{
- char *regs = gregs;
+ char *regs = (char *) gregs;
int i;
for (i = 0; i < ARRAY_SIZE (i386bsd_r_reg_offset); i++)
for all registers (including the floating point registers). */
static void
-i386bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
+i386bsd_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
{
if (regnum == -1 || GETREGS_SUPPLIES (regnum))
{
struct reg regs;
- if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't get registers"));
struct fpreg fpregs;
#ifdef HAVE_PT_GETXMMREGS
char xmmregs[512];
+#endif
+
+#ifdef PT_GETXSTATE_INFO
+ if (x86bsd_xsave_len != 0)
+ {
+ void *xstateregs;
+
+ xstateregs = alloca (x86bsd_xsave_len);
+ if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
+ (PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
+ perror_with_name (_("Couldn't get extended state status"));
+ i387_supply_xsave (regcache, -1, xstateregs);
+ return;
+ }
+#endif
+
+#ifdef HAVE_PT_GETXMMREGS
if (have_ptrace_xmmregs != 0
- && ptrace(PT_GETXMMREGS, PIDGET (inferior_ptid),
+ && ptrace(PT_GETXMMREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) xmmregs, 0) == 0)
{
have_ptrace_xmmregs = 1;
}
else
{
- if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+ have_ptrace_xmmregs = 0;
+#endif
+ if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't get floating point status"));
i387_supply_fsave (regcache, -1, &fpregs);
+#ifdef HAVE_PT_GETXMMREGS
}
-#else
- if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
- perror_with_name (_("Couldn't get floating point status"));
-
- i387_supply_fsave (regcache, -1, &fpregs);
#endif
}
}
this for all registers (including the floating point registers). */
static void
-i386bsd_store_inferior_registers (struct regcache *regcache, int regnum)
+i386bsd_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
{
if (regnum == -1 || GETREGS_SUPPLIES (regnum))
{
struct reg regs;
- if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't get registers"));
i386bsd_collect_gregset (regcache, ®s, regnum);
- if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't write registers"));
struct fpreg fpregs;
#ifdef HAVE_PT_GETXMMREGS
char xmmregs[512];
+#endif
+#ifdef PT_GETXSTATE_INFO
+ if (x86bsd_xsave_len != 0)
+ {
+ void *xstateregs;
+
+ xstateregs = alloca (x86bsd_xsave_len);
+ if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
+ (PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
+ perror_with_name (_("Couldn't get extended state status"));
+
+ i387_collect_xsave (regcache, -1, xstateregs, 0);
+
+ if (ptrace (PT_SETXSTATE, get_ptrace_pid (inferior_ptid),
+ (PTRACE_TYPE_ARG3) xstateregs, x86bsd_xsave_len) == -1)
+ perror_with_name (_("Couldn't write extended state status"));
+ return;
+ }
+#endif
+
+#ifdef HAVE_PT_GETXMMREGS
if (have_ptrace_xmmregs != 0
- && ptrace(PT_GETXMMREGS, PIDGET (inferior_ptid),
+ && ptrace(PT_GETXMMREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) xmmregs, 0) == 0)
{
have_ptrace_xmmregs = 1;
i387_collect_fxsave (regcache, regnum, xmmregs);
- if (ptrace (PT_SETXMMREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_SETXMMREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) xmmregs, 0) == -1)
perror_with_name (_("Couldn't write XMM registers"));
}
{
have_ptrace_xmmregs = 0;
#endif
- if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't get floating point status"));
i387_collect_fsave (regcache, regnum, &fpregs);
- if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
+ if (ptrace (PT_SETFPREGS, get_ptrace_pid (inferior_ptid),
(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
perror_with_name (_("Couldn't write floating point status"));
#ifdef HAVE_PT_GETXMMREGS
{
struct target_ops *t;
- t = inf_ptrace_target ();
+ t = x86bsd_target ();
t->to_fetch_registers = i386bsd_fetch_inferior_registers;
t->to_store_registers = i386bsd_store_inferior_registers;
return t;
}
\f
-/* Support for debug registers. */
-
-#ifdef HAVE_PT_GETDBREGS
-
-/* Not all versions of FreeBSD/i386 that support the debug registers
- have this macro. */
-#ifndef DBREG_DRX
-#define DBREG_DRX(d, x) ((&d->dr0)[x])
-#endif
-
-static void
-i386bsd_dr_set (int regnum, unsigned int value)
-{
- struct dbreg dbregs;
-
- if (ptrace (PT_GETDBREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
- perror_with_name (_("Couldn't get debug registers"));
-
- /* For some mysterious reason, some of the reserved bits in the
- debug control register get set. Mask these off, otherwise the
- ptrace call below will fail. */
- DBREG_DRX ((&dbregs), 7) &= ~(0x0000fc00);
-
- DBREG_DRX ((&dbregs), regnum) = value;
-
- if (ptrace (PT_SETDBREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
- perror_with_name (_("Couldn't write debug registers"));
-}
-
-void
-i386bsd_dr_set_control (unsigned long control)
-{
- i386bsd_dr_set (7, control);
-}
-
-void
-i386bsd_dr_set_addr (int regnum, CORE_ADDR addr)
-{
- gdb_assert (regnum >= 0 && regnum <= 4);
-
- i386bsd_dr_set (regnum, addr);
-}
-
-void
-i386bsd_dr_reset_addr (int regnum)
-{
- gdb_assert (regnum >= 0 && regnum <= 4);
-
- i386bsd_dr_set (regnum, 0);
-}
-
-unsigned long
-i386bsd_dr_get_status (void)
-{
- struct dbreg dbregs;
-
- /* FIXME: kettenis/2001-03-31: 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 vector. For now, just return zero if the
- ptrace call fails. */
- if (ptrace (PT_GETDBREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
-#if 0
- perror_with_name (_("Couldn't read debug registers"));
-#else
- return 0;
-#endif
-
- return DBREG_DRX ((&dbregs), 6);
-}
-
-#endif /* PT_GETDBREGS */
-\f
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_i386bsd_nat (void);
void
_initialize_i386bsd_nat (void)
projects / deliverable / binutils-gdb.git / blobdiff