/* Native-dependent code for GNU/Linux i386.
- Copyright (C) 1999-2013 Free Software Foundation, Inc.
+ Copyright (C) 1999-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "regset.h"
#include "target.h"
#include "linux-nat.h"
+#include "nat/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>
(I386_ST0_REGNUM <= (regno) && (regno) < I386_SSE_NUM_REGS)
#define GETXSTATEREGS_SUPPLIES(regno) \
- (I386_ST0_REGNUM <= (regno) && (regno) < I386_AVX_NUM_REGS)
+ (I386_ST0_REGNUM <= (regno) && (regno) < I386_AVX512_NUM_REGS)
/* Does the current host support the GETREGS request? */
int have_ptrace_getregs =
}
/* 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. */
errno = 0;
val = ptrace (PTRACE_PEEKUSER, tid,
return;
/* 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. */
errno = 0;
regcache_raw_collect (regcache, regno, &val);
}
/* 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. */
/* Use the PTRACE_GETFPXREGS request whenever possible, since it
transfers more registers in one system call, and we'll cache the
}
/* 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. */
/* Use the PTRACE_SETFPXREGS requests whenever possible, since it
transfers more registers in one system call. But remember that
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,
/* See amd64_linux_prepare_to_resume for Linux kernel note on
i386_linux_dr_set calls ordering. */
+ i386_linux_dr_set (lwp->ptid, DR_CONTROL, 0);
+
for (i = DR_FIRSTADDR; i <= DR_LASTADDR; i++)
if (state->dr_ref_count[i] > 0)
{
clear_status = 1;
}
- i386_linux_dr_set (lwp->ptid, DR_CONTROL, state->dr_control_mirror);
+ if (state->dr_control_mirror != 0)
+ i386_linux_dr_set (lwp->ptid, DR_CONTROL, state->dr_control_mirror);
lwp->arch_private->debug_registers_changed = 0;
}
i386_linux_resume (struct target_ops *ops,
ptid_t ptid, int step, enum gdb_signal signal)
{
- int pid = PIDGET (ptid);
+ int pid = ptid_get_pid (ptid);
int request;
perror_with_name (("ptrace"));
}
-static void (*super_post_startup_inferior) (ptid_t ptid);
+static void (*super_post_startup_inferior) (struct target_ops *self,
+ ptid_t ptid);
static void
-i386_linux_child_post_startup_inferior (ptid_t ptid)
+i386_linux_child_post_startup_inferior (struct target_ops *self, ptid_t ptid)
{
i386_cleanup_dregs ();
- super_post_startup_inferior (ptid);
+ super_post_startup_inferior (self, ptid);
}
/* Get Linux/x86 target description from running target. */
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. */
#ifdef HAVE_PTRACE_GETFPXREGS
if (have_ptrace_getfpxregs == -1)
}
/* Check the native XCR0 only if PTRACE_GETREGSET is available. */
- if (have_ptrace_getregset
- && (xcr0 & I386_XSTATE_AVX_MASK) == I386_XSTATE_AVX_MASK)
- return tdesc_i386_avx_linux;
+ if (have_ptrace_getregset)
+ {
+ switch ((xcr0 & I386_XSTATE_ALL_MASK))
+ {
+ case I386_XSTATE_MPX_AVX512_MASK:
+ case I386_XSTATE_AVX512_MASK:
+ return tdesc_i386_avx512_linux;
+ case I386_XSTATE_MPX_MASK:
+ return tdesc_i386_mpx_linux;
+ case I386_XSTATE_AVX_MASK:
+ return tdesc_i386_avx_linux;
+ default:
+ return tdesc_i386_linux;
+ }
+ }
else
return tdesc_i386_linux;
}
+/* Enable branch tracing. */
+
+static struct btrace_target_info *
+i386_linux_enable_btrace (struct target_ops *self, 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
+i386_linux_disable_btrace (struct target_ops *self,
+ struct btrace_target_info *tinfo)
+{
+ enum btrace_error errcode = linux_disable_btrace (tinfo);
+
+ if (errcode != BTRACE_ERR_NONE)
+ error (_("Could not disable branch tracing."));
+}
+
+/* Teardown branch tracing. */
+
+static void
+i386_linux_teardown_btrace (struct target_ops *self,
+ struct btrace_target_info *tinfo)
+{
+ /* Ignore errors. */
+ linux_disable_btrace (tinfo);
+}
+
+static enum btrace_error
+i386_linux_read_btrace (struct target_ops *self,
+ VEC (btrace_block_s) **data,
+ struct btrace_target_info *btinfo,
+ enum btrace_read_type type)
+{
+ return linux_read_btrace (data, btinfo, type);
+}
+
/* -Wmissing-prototypes */
extern initialize_file_ftype _initialize_i386_linux_nat;
t->to_read_description = i386_linux_read_description;
+ /* Add btrace methods. */
+ t->to_supports_btrace = linux_supports_btrace;
+ t->to_enable_btrace = i386_linux_enable_btrace;
+ t->to_disable_btrace = i386_linux_disable_btrace;
+ t->to_teardown_btrace = i386_linux_teardown_btrace;
+ t->to_read_btrace = i386_linux_read_btrace;
+
/* Register the target. */
linux_nat_add_target (t);
linux_nat_set_new_thread (t, i386_linux_new_thread);
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