/* Functions specific to running gdb native on IA-64 running
GNU/Linux.
- Copyright (C) 1999-2012 Free Software Foundation, Inc.
+ Copyright (C) 1999-2017 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_string.h"
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include "linux-nat.h"
#include <signal.h>
-#include <sys/ptrace.h>
+#include "nat/gdb_ptrace.h"
#include "gdb_wait.h"
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
+#include "inf-ptrace.h"
+
/* These must match the order of the register names.
Some sort of lookup table is needed because the offsets associated
{
int tid;
- tid = TIDGET (ptid);
+ tid = ptid_get_lwp (ptid);
if (tid == 0)
- tid = PIDGET (ptid);
+ tid = ptid_get_pid (ptid);
(void) ptrace (PT_WRITE_U, tid, (PTRACE_TYPE_ARG3) (PT_DBR + 8 * idx), val);
}
}
static int
-ia64_linux_insert_watchpoint (CORE_ADDR addr, int len, int rw,
+ia64_linux_insert_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len,
+ enum target_hw_bp_type type,
struct expression *cond)
{
struct lwp_info *lp;
dbr_addr = (long) addr;
dbr_mask = (~(len - 1) & 0x00ffffffffffffffL); /* construct mask to match */
dbr_mask |= 0x0800000000000000L; /* Only match privilege level 3 */
- switch (rw)
+ switch (type)
{
case hw_write:
dbr_mask |= (1L << 62); /* Set w bit */
}
static int
-ia64_linux_remove_watchpoint (CORE_ADDR addr, int len, int type,
+ia64_linux_remove_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len,
+ enum target_hw_bp_type type,
struct expression *cond)
{
int idx;
}
static int
-ia64_linux_stopped_by_watchpoint (void)
+ia64_linux_stopped_by_watchpoint (struct target_ops *ops)
{
CORE_ADDR addr;
- return ia64_linux_stopped_data_address (¤t_target, &addr);
+ return ia64_linux_stopped_data_address (ops, &addr);
}
static int
-ia64_linux_can_use_hw_breakpoint (int type, int cnt, int othertype)
+ia64_linux_can_use_hw_breakpoint (struct target_ops *self,
+ enum bptype type,
+ int cnt, int othertype)
{
return 1;
}
static void
ia64_linux_fetch_register (struct regcache *regcache, int regnum)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
- int pid, i;
+ pid_t pid;
+ int i;
/* r0 cannot be fetched but is always zero. */
if (regnum == IA64_GR0_REGNUM)
return;
}
- /* Cater for systems like GNU/Linux, that implement threads as
- separate processes. */
- pid = ptid_get_lwp (inferior_ptid);
- if (pid == 0)
- pid = ptid_get_pid (inferior_ptid);
+ pid = get_ptrace_pid (regcache_get_ptid (regcache));
/* This isn't really an address, but ptrace thinks of it as one. */
addr = ia64_register_addr (gdbarch, regnum);
size = register_size (gdbarch, regnum);
gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
- buf = alloca (size);
+ buf = (PTRACE_TYPE_RET *) alloca (size);
/* Read the register contents from the inferior a chunk at a time. */
for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
{
if (regnum == -1)
for (regnum = 0;
- regnum < gdbarch_num_regs (get_regcache_arch (regcache));
+ regnum < gdbarch_num_regs (regcache->arch ());
regnum++)
ia64_linux_fetch_register (regcache, regnum);
else
static void
ia64_linux_store_register (const struct regcache *regcache, int regnum)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
CORE_ADDR addr;
size_t size;
PTRACE_TYPE_RET *buf;
- int pid, i;
+ pid_t pid;
+ int i;
if (ia64_cannot_store_register (gdbarch, regnum))
return;
- /* Cater for systems like GNU/Linux, that implement threads as
- separate processes. */
- pid = ptid_get_lwp (inferior_ptid);
- if (pid == 0)
- pid = ptid_get_pid (inferior_ptid);
+ pid = get_ptrace_pid (regcache_get_ptid (regcache));
/* This isn't really an address, but ptrace thinks of it as one. */
addr = ia64_register_addr (gdbarch, regnum);
size = register_size (gdbarch, regnum);
gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
- buf = alloca (size);
+ buf = (PTRACE_TYPE_RET *) alloca (size);
/* Write the register contents into the inferior a chunk at a time. */
regcache_raw_collect (regcache, regnum, buf);
{
if (regnum == -1)
for (regnum = 0;
- regnum < gdbarch_num_regs (get_regcache_arch (regcache));
+ regnum < gdbarch_num_regs (regcache->arch ());
regnum++)
ia64_linux_store_register (regcache, regnum);
else
}
-static LONGEST (*super_xfer_partial) (struct target_ops *, enum target_object,
- const char *, gdb_byte *,
- const gdb_byte *, ULONGEST, LONGEST);
+static target_xfer_partial_ftype *super_xfer_partial;
+
+/* Implement the to_xfer_partial target_ops method. */
-static LONGEST
+static enum target_xfer_status
ia64_linux_xfer_partial (struct target_ops *ops,
enum target_object object,
const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
- ULONGEST offset, LONGEST len)
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
- if (object == TARGET_OBJECT_UNWIND_TABLE && writebuf == NULL && offset == 0)
- return syscall (__NR_getunwind, readbuf, len);
+ if (object == TARGET_OBJECT_UNWIND_TABLE && readbuf != NULL)
+ {
+ static long gate_table_size;
+ gdb_byte *tmp_buf;
+ long res;
+
+ /* Probe for the table size once. */
+ if (gate_table_size == 0)
+ gate_table_size = syscall (__NR_getunwind, NULL, 0);
+ if (gate_table_size < 0)
+ return TARGET_XFER_E_IO;
+
+ if (offset >= gate_table_size)
+ return TARGET_XFER_EOF;
+
+ tmp_buf = (gdb_byte *) alloca (gate_table_size);
+ res = syscall (__NR_getunwind, tmp_buf, gate_table_size);
+ if (res < 0)
+ return TARGET_XFER_E_IO;
+ gdb_assert (res == gate_table_size);
+
+ if (offset + len > gate_table_size)
+ len = gate_table_size - offset;
+
+ memcpy (readbuf, tmp_buf + offset, len);
+ *xfered_len = len;
+ return TARGET_XFER_OK;
+ }
return super_xfer_partial (ops, object, annex, readbuf, writebuf,
- offset, len);
+ offset, len, xfered_len);
}
/* For break.b instruction ia64 CPU forgets the immediate value and generates
|| WSTOPSIG (status) == SIGILL);
}
-void _initialize_ia64_linux_nat (void);
-
void
_initialize_ia64_linux_nat (void)
{
projects / deliverable / binutils-gdb.git / blobdiff