Enable support for the AArch64 dot-prod instruction in the Cortex A55 and A75 cpus.

[deliverable/binutils-gdb.git] / gdb / mips-linux-nat.c

diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
index d8781fc6543bdeaa0c9872e2a6b0a84fd8c7a946..1fd33653319d2dcad39d82f438ddfe34d7c96409 100644 (file)
--- a/gdb/mips-linux-nat.c
+++ b/gdb/mips-linux-nat.c
@@ -1,6 +1,6 @@
 /* Native-dependent code for GNU/Linux on MIPS processors.
 
-   Copyright (C) 2001-2014 Free Software Foundation, Inc.
+   Copyright (C) 2001-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -20,7 +20,6 @@
 #include "defs.h"
 #include "command.h"
 #include "gdbcmd.h"
-#include "gdb_assert.h"
 #include "inferior.h"
 #include "mips-tdep.h"
 #include "target.h"
@@ -33,15 +32,11 @@
 #include "gregset.h"
 
 #include <sgidefs.h>
-#include <sys/ptrace.h>
+#include "nat/gdb_ptrace.h"
 #include <asm/ptrace.h>
+#include "inf-ptrace.h"
 
-#include "mips-linux-watch.h"
-
-#include "features/mips-linux.c"
-#include "features/mips-dsp-linux.c"
-#include "features/mips64-linux.c"
-#include "features/mips64-dsp-linux.c"
+#include "nat/mips-linux-watch.h"
 
 #ifndef PTRACE_GET_THREAD_AREA
 #define PTRACE_GET_THREAD_AREA 25
@@ -51,10 +46,6 @@
    we'll clear this and use PTRACE_PEEKUSER instead.  */
 static int have_ptrace_regsets = 1;
 
-/* Whether or not to print the mirrored debug registers.  */
-
-static int maint_show_dr;
-
 /* Saved function pointers to fetch and store a single register using
    PTRACE_PEEKUSER and PTRACE_POKEUSER.  */
 
@@ -63,7 +54,7 @@ static void (*super_fetch_registers) (struct target_ops *,
 static void (*super_store_registers) (struct target_ops *,
                                      struct regcache *, int);
 
-static void (*super_close) (void);
+static void (*super_close) (struct target_ops *);
 
 /* Map gdb internal register number to ptrace ``address''.
    These ``addresses'' are normally defined in <asm/ptrace.h>. 
@@ -157,7 +148,7 @@ mips64_linux_register_addr (struct gdbarch *gdbarch, int regno, int store)
 /* Fetch the thread-local storage pointer for libthread_db.  */
 
 ps_err_e
-ps_get_thread_area (const struct ps_prochandle *ph,
+ps_get_thread_area (struct ps_prochandle *ph,
                     lwpid_t lwpid, int idx, void **base)
 {
   if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
@@ -249,9 +240,7 @@ mips64_linux_regsets_fetch_registers (struct target_ops *ops,
   else
     is_dsp = 0;
 
-  tid = ptid_get_lwp (inferior_ptid);
-  if (tid == 0)
-    tid = ptid_get_pid (inferior_ptid);
+  tid = get_ptrace_pid (regcache_get_ptid (regcache));
 
   if (regno == -1 || (!is_fp && !is_dsp))
     {
@@ -337,9 +326,7 @@ mips64_linux_regsets_store_registers (struct target_ops *ops,
   else
     is_dsp = 0;
 
-  tid = ptid_get_lwp (inferior_ptid);
-  if (tid == 0)
-    tid = ptid_get_pid (inferior_ptid);
+  tid = get_ptrace_pid (regcache_get_ptid (regcache));
 
   if (regno == -1 || (!is_fp && !is_dsp))
     {
@@ -440,6 +427,7 @@ mips_linux_read_description (struct target_ops *ops)
       if (tid == 0)
        tid = ptid_get_pid (inferior_ptid);
 
+      errno = 0;
       ptrace (PTRACE_PEEKUSER, tid, DSP_CONTROL, 0);
       switch (errno)
        {
@@ -513,7 +501,8 @@ mips_show_dr (const char *func, CORE_ADDR addr,
 
 static int
 mips_linux_can_use_hw_breakpoint (struct target_ops *self,
-                                 int type, int cnt, int ot)
+                                 enum bptype type,
+                                 int cnt, int ot)
 {
   int i;
   uint32_t wanted_mask, irw_mask;
@@ -589,7 +578,8 @@ mips_linux_stopped_data_address (struct target_ops *t, CORE_ADDR *paddr)
    the specified region can be covered by the watch registers.  */
 
 static int
-mips_linux_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
+mips_linux_region_ok_for_hw_watchpoint (struct target_ops *self,
+                                       CORE_ADDR addr, int len)
 {
   struct pt_watch_regs dummy_regs;
   int i;
@@ -617,7 +607,7 @@ write_watchpoint_regs (void)
   ALL_LWPS (lp)
     {
       tid = ptid_get_lwp (lp->ptid);
-      if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror) == -1)
+      if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1)
        perror_with_name (_("Couldn't write debug register"));
     }
   return 0;
@@ -629,15 +619,14 @@ write_watchpoint_regs (void)
 static void
 mips_linux_new_thread (struct lwp_info *lp)
 {
-  int tid;
+  long tid = lp->ptid.lwp ();
 
-  if (!mips_linux_read_watch_registers (ptid_get_lwp (inferior_ptid),
+  if (!mips_linux_read_watch_registers (tid,
                                        &watch_readback,
                                        &watch_readback_valid, 0))
     return;
 
-  tid = ptid_get_lwp (lp->ptid);
-  if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror) == -1)
+  if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1)
     perror_with_name (_("Couldn't write debug register"));
 }
 
@@ -646,7 +635,8 @@ mips_linux_new_thread (struct lwp_info *lp)
 
 static int
 mips_linux_insert_watchpoint (struct target_ops *self,
-                             CORE_ADDR addr, int len, int type,
+                             CORE_ADDR addr, int len,
+                             enum target_hw_bp_type type,
                              struct expression *cond)
 {
   struct pt_watch_regs regs;
@@ -674,8 +664,7 @@ mips_linux_insert_watchpoint (struct target_ops *self,
     return -1;
 
   /* It fit.  Stick it on the end of the list.  */
-  new_watch = (struct mips_watchpoint *)
-    xmalloc (sizeof (struct mips_watchpoint));
+  new_watch = XNEW (struct mips_watchpoint);
   new_watch->addr = addr;
   new_watch->len = len;
   new_watch->type = type;
@@ -689,7 +678,7 @@ mips_linux_insert_watchpoint (struct target_ops *self,
   watch_mirror = regs;
   retval = write_watchpoint_regs ();
 
-  if (maint_show_dr)
+  if (show_debug_regs)
     mips_show_dr ("insert_watchpoint", addr, len, type);
 
   return retval;
@@ -700,7 +689,8 @@ mips_linux_insert_watchpoint (struct target_ops *self,
 
 static int
 mips_linux_remove_watchpoint (struct target_ops *self,
-                             CORE_ADDR addr, int len, int type,
+                             CORE_ADDR addr, int len,
+                             enum target_hw_bp_type type,
                              struct expression *cond)
 {
   int retval;
@@ -737,7 +727,7 @@ mips_linux_remove_watchpoint (struct target_ops *self,
 
   retval = write_watchpoint_regs ();
 
-  if (maint_show_dr)
+  if (show_debug_regs)
     mips_show_dr ("remove_watchpoint", addr, len, type);
 
   return retval;
@@ -763,7 +753,7 @@ mips_linux_close (struct target_ops *self)
   current_watches = NULL;
 
   if (super_close)
-    super_close ();
+    super_close (self);
 }
 
 void _initialize_mips_linux_nat (void);
@@ -774,7 +764,7 @@ _initialize_mips_linux_nat (void)
   struct target_ops *t;
 
   add_setshow_boolean_cmd ("show-debug-regs", class_maintenance,
-                          &maint_show_dr, _("\
+                          &show_debug_regs, _("\
 Set whether to show variables that mirror the mips debug registers."), _("\
 Show whether to show variables that mirror the mips debug registers."), _("\
 Use \"on\" to enable, \"off\" to disable.\n\
@@ -808,10 +798,4 @@ triggers a breakpoint or watchpoint."),
 
   linux_nat_add_target (t);
   linux_nat_set_new_thread (t, mips_linux_new_thread);
-
-  /* Initialize the standard target descriptions.  */
-  initialize_tdesc_mips_linux ();
-  initialize_tdesc_mips_dsp_linux ();
-  initialize_tdesc_mips64_linux ();
-  initialize_tdesc_mips64_dsp_linux ();
 }