/* Native-dependent code for GNU/Linux x86-64.
- Copyright (C) 2001-2013 Free Software Foundation, Inc.
+ Copyright (C) 2001-2014 Free Software Foundation, Inc.
Contributed by Jiri Smid, SuSE Labs.
This file is part of GDB.
#include "regset.h"
#include "linux-nat.h"
#include "amd64-linux-tdep.h"
+#include "linux-btrace.h"
+#include "btrace.h"
#include "gdb_assert.h"
-#include "gdb_string.h"
+#include <string.h>
#include "elf/common.h"
#include <sys/uio.h>
#include <sys/ptrace.h>
-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 /* "orig_eax" */
+ -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
+ -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
+ ORIG_RAX * 8, /* "orig_eax" */
};
\f
int tid;
/* GNU/Linux LWP ID's are process ID's. */
- tid = TIDGET (inferior_ptid);
+ tid = ptid_get_lwp (inferior_ptid);
if (tid == 0)
- tid = PIDGET (inferior_ptid); /* Not a threaded program. */
+ tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */
if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
int tid;
/* GNU/Linux LWP ID's are process ID's. */
- tid = TIDGET (inferior_ptid);
+ tid = ptid_get_lwp (inferior_ptid);
if (tid == 0)
- tid = PIDGET (inferior_ptid); /* Not a threaded program. */
+ tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */
if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
int tid;
unsigned long value;
- tid = TIDGET (ptid);
+ tid = ptid_get_lwp (ptid);
if (tid == 0)
- tid = PIDGET (ptid);
+ tid = ptid_get_pid (ptid);
errno = 0;
value = ptrace (PTRACE_PEEKUSER, tid,
{
int tid;
- tid = TIDGET (ptid);
+ tid = ptid_get_lwp (ptid);
if (tid == 0)
- tid = PIDGET (ptid);
+ tid = ptid_get_pid (ptid);
errno = 0;
ptrace (PTRACE_POKEUSER, tid,
static uint64_t xcr0;
/* GNU/Linux LWP ID's are process ID's. */
- tid = TIDGET (inferior_ptid);
+ tid = ptid_get_lwp (inferior_ptid);
if (tid == 0)
- tid = PIDGET (inferior_ptid); /* Not a threaded program. */
+ tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */
/* Get CS register. */
errno = 0;
}
/* Check the native XCR0 only if PTRACE_GETREGSET is available. */
- if (have_ptrace_getregset
- && (xcr0 & I386_XSTATE_AVX_MASK) == I386_XSTATE_AVX_MASK)
+ if (have_ptrace_getregset && (xcr0 & I386_XSTATE_ALL_MASK))
{
- if (is_64bit)
+ switch (xcr0 & I386_XSTATE_ALL_MASK)
{
- if (is_x32)
- return tdesc_x32_avx_linux;
+ case I386_XSTATE_MPX_MASK:
+ if (is_64bit)
+ {
+ if (is_x32)
+ return tdesc_x32_avx_linux; /* No MPX on x32 using AVX. */
+ else
+ return tdesc_amd64_mpx_linux;
+ }
else
- return tdesc_amd64_avx_linux;
+ return tdesc_i386_mpx_linux;
+ case I386_XSTATE_AVX_MASK:
+ if (is_64bit)
+ {
+ if (is_x32)
+ return tdesc_x32_avx_linux;
+ else
+ return tdesc_amd64_avx_linux;
+ }
+ else
+ return tdesc_i386_avx_linux;
+ default:
+ if (is_64bit)
+ {
+ if (is_x32)
+ return tdesc_x32_linux;
+ else
+ return tdesc_amd64_linux;
+ }
+ else
+ return tdesc_i386_linux;
}
- else
- return tdesc_i386_avx_linux;
}
else
{
}
}
+/* Enable branch tracing. */
+
+static struct btrace_target_info *
+amd64_linux_enable_btrace (ptid_t ptid)
+{
+ struct btrace_target_info *tinfo;
+ struct gdbarch *gdbarch;
+
+ errno = 0;
+ tinfo = linux_enable_btrace (ptid);
+
+ if (tinfo == NULL)
+ error (_("Could not enable branch tracing for %s: %s."),
+ target_pid_to_str (ptid), safe_strerror (errno));
+
+ /* Fill in the size of a pointer in bits. */
+ gdbarch = target_thread_architecture (ptid);
+ tinfo->ptr_bits = gdbarch_ptr_bit (gdbarch);
+
+ return tinfo;
+}
+
+/* Disable branch tracing. */
+
+static void
+amd64_linux_disable_btrace (struct btrace_target_info *tinfo)
+{
+ int errcode = linux_disable_btrace (tinfo);
+
+ if (errcode != 0)
+ error (_("Could not disable branch tracing: %s."), safe_strerror (errcode));
+}
+
+/* Teardown branch tracing. */
+
+static void
+amd64_linux_teardown_btrace (struct btrace_target_info *tinfo)
+{
+ /* Ignore errors. */
+ linux_disable_btrace (tinfo);
+}
+
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_amd64_linux_nat (void);
t->to_read_description = amd64_linux_read_description;
+ /* Add btrace methods. */
+ t->to_supports_btrace = linux_supports_btrace;
+ t->to_enable_btrace = amd64_linux_enable_btrace;
+ t->to_disable_btrace = amd64_linux_disable_btrace;
+ t->to_teardown_btrace = amd64_linux_teardown_btrace;
+ t->to_read_btrace = linux_read_btrace;
+
/* Register the target. */
linux_nat_add_target (t);
linux_nat_set_new_thread (t, amd64_linux_new_thread);