/* Native-dependent code for GNU/Linux i386.
- Copyright 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "inferior.h"
#include "gdbcore.h"
#include "regcache.h"
+#include "target.h"
#include "linux-nat.h"
#include "gdb_assert.h"
error (_("Couldn't read register %s (#%d): %s."), REGISTER_NAME (regno),
regno, safe_strerror (errno));
- regcache_raw_supply (current_regcache, regno, (gdb_byte *) &val);
+ regcache_raw_supply (current_regcache, regno, &val);
}
/* Store one register. */
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
errno = 0;
- regcache_raw_collect (current_regcache, regno, (gdb_byte *) &val);
+ regcache_raw_collect (current_regcache, regno, &val);
ptrace (PTRACE_POKEUSER, tid, register_addr (regno, 0), val);
if (errno != 0)
error (_("Couldn't write register %s (#%d): %s."), REGISTER_NAME (regno),
int i;
for (i = 0; i < I386_NUM_GREGS; i++)
- regcache_raw_supply (current_regcache, i, (gdb_byte *) (regp + regmap[i]));
+ regcache_raw_supply (current_regcache, i, regp + regmap[i]);
if (I386_LINUX_ORIG_EAX_REGNUM < NUM_REGS)
regcache_raw_supply (current_regcache, I386_LINUX_ORIG_EAX_REGNUM,
- (gdb_byte *) (regp + ORIG_EAX));
+ regp + ORIG_EAX);
}
/* Fill register REGNO (if it is a general-purpose register) in
for (i = 0; i < I386_NUM_GREGS; i++)
if (regno == -1 || regno == i)
- regcache_raw_collect (current_regcache, i, (gdb_byte *) (regp + regmap[i]));
+ regcache_raw_collect (current_regcache, i, regp + regmap[i]);
if ((regno == -1 || regno == I386_LINUX_ORIG_EAX_REGNUM)
&& I386_LINUX_ORIG_EAX_REGNUM < NUM_REGS)
regcache_raw_collect (current_regcache, I386_LINUX_ORIG_EAX_REGNUM,
- (gdb_byte *) (regp + ORIG_EAX));
+ regp + ORIG_EAX);
}
#ifdef HAVE_PTRACE_GETREGS
this for all registers (including the floating point and SSE
registers). */
-void
-fetch_inferior_registers (int regno)
+static void
+i386_linux_fetch_inferior_registers (int regno)
{
int tid;
/* The call above might reset `have_ptrace_getregs'. */
if (!have_ptrace_getregs)
{
- fetch_inferior_registers (regno);
+ i386_linux_fetch_inferior_registers (regno);
return;
}
/* Store register REGNO back into the child process. If REGNO is -1,
do this for all registers (including the floating point and SSE
registers). */
-void
-store_inferior_registers (int regno)
+static void
+i386_linux_store_inferior_registers (int regno)
{
int tid;
If STEP is nonzero, single-step it.
If SIGNAL is nonzero, give it that signal. */
-void
-child_resume (ptid_t ptid, int step, enum target_signal signal)
+static void
+i386_linux_resume (ptid_t ptid, int step, enum target_signal signal)
{
int pid = PIDGET (ptid);
if (step)
{
CORE_ADDR pc = read_pc_pid (pid_to_ptid (pid));
- unsigned char buf[LINUX_SYSCALL_LEN];
+ gdb_byte buf[LINUX_SYSCALL_LEN];
request = PTRACE_SINGLESTEP;
that's about to be restored, and set the trace flag there. */
/* First check if PC is at a system call. */
- if (deprecated_read_memory_nobpt (pc, (char *) buf, LINUX_SYSCALL_LEN) == 0
+ if (deprecated_read_memory_nobpt (pc, buf, LINUX_SYSCALL_LEN) == 0
&& memcmp (buf, linux_syscall, LINUX_SYSCALL_LEN) == 0)
{
int syscall = read_register_pid (LINUX_SYSCALL_REGNUM,
/* Set the trace flag in the context that's about to be
restored. */
addr += LINUX_SIGCONTEXT_EFLAGS_OFFSET;
- read_memory (addr, (char *) &eflags, 4);
+ read_memory (addr, (gdb_byte *) &eflags, 4);
eflags |= 0x0100;
- write_memory (addr, (char *) &eflags, 4);
+ write_memory (addr, (gdb_byte *) &eflags, 4);
}
}
}
perror_with_name (("ptrace"));
}
-void
-child_post_startup_inferior (ptid_t ptid)
+static void (*super_post_startup_inferior) (ptid_t ptid);
+
+static void
+i386_linux_child_post_startup_inferior (ptid_t ptid)
{
i386_cleanup_dregs ();
- linux_child_post_startup_inferior (ptid);
+ super_post_startup_inferior (ptid);
+}
+
+void
+_initialize_i386_linux_nat (void)
+{
+ struct target_ops *t;
+
+ /* Fill in the generic GNU/Linux methods. */
+ t = linux_target ();
+
+ /* Override the default ptrace resume method. */
+ t->to_resume = i386_linux_resume;
+
+ /* Override the GNU/Linux inferior startup hook. */
+ super_post_startup_inferior = t->to_post_startup_inferior;
+ t->to_post_startup_inferior = i386_linux_child_post_startup_inferior;
+
+ /* Add our register access methods. */
+ t->to_fetch_registers = i386_linux_fetch_inferior_registers;
+ t->to_store_registers = i386_linux_store_inferior_registers;
+
+ /* Register the target. */
+ add_target (t);
}