gdb.trace/tfind.exp: Force call via global entry point on ppc64le.

[deliverable/binutils-gdb.git] / gdb / bsd-kvm.c

diff --git a/gdb/bsd-kvm.c b/gdb/bsd-kvm.c
index 84ca680b6d7c328b8cb4f14ce4a41db98f2be8b2..9e15fabf3367b3994ce3c5fdf50d627a648aaa00 100644 (file)
--- a/gdb/bsd-kvm.c
+++ b/gdb/bsd-kvm.c
@@ -1,6 +1,6 @@
 /* BSD Kernel Data Access Library (libkvm) interface.
 
-   Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2004-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,7 +27,6 @@
 #include "gdbcore.h"           /* for get_exec_file */
 #include "gdbthread.h"
 
-#include "gdb_assert.h"
 #include <fcntl.h>
 #include <kvm.h>
 #ifdef HAVE_NLIST_H
@@ -63,19 +62,20 @@ static struct target_ops bsd_kvm_ops;
 static ptid_t bsd_kvm_ptid;
 
 static void
-bsd_kvm_open (char *filename, int from_tty)
+bsd_kvm_open (const char *arg, int from_tty)
 {
   char errbuf[_POSIX2_LINE_MAX];
   char *execfile = NULL;
   kvm_t *temp_kd;
+  char *filename = NULL;
 
   target_preopen (from_tty);
 
-  if (filename)
+  if (arg)
     {
       char *temp;
 
-      filename = tilde_expand (filename);
+      filename = tilde_expand (arg);
       if (filename[0] != '/')
        {
          temp = concat (current_directory, "/", filename, (char *)NULL);
@@ -101,11 +101,11 @@ bsd_kvm_open (char *filename, int from_tty)
   target_fetch_registers (get_current_regcache (), -1);
 
   reinit_frame_cache ();
-  print_stack_frame (get_selected_frame (NULL), -1, 1);
+  print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC, 1);
 }
 
 static void
-bsd_kvm_close (int quitting)
+bsd_kvm_close (struct target_ops *self)
 {
   if (core_kd)
     {
@@ -131,19 +131,31 @@ bsd_kvm_xfer_memory (CORE_ADDR addr, ULONGEST len,
   return nbytes;
 }
 
-static LONGEST
+static enum target_xfer_status
 bsd_kvm_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)
 {
   switch (object)
     {
     case TARGET_OBJECT_MEMORY:
-      return bsd_kvm_xfer_memory (offset, len, readbuf, writebuf);
+      {
+       LONGEST ret = bsd_kvm_xfer_memory (offset, len, readbuf, writebuf);
+
+       if (ret < 0)
+         return TARGET_XFER_E_IO;
+       else if (ret == 0)
+         return TARGET_XFER_EOF;
+       else
+         {
+           *xfered_len = (ULONGEST) ret;
+           return TARGET_XFER_OK;
+         }
+      }
 
     default:
-      return -1;
+      return TARGET_XFER_E_IO;
     }
 }
 
@@ -172,7 +184,8 @@ bsd_kvm_fetch_pcb (struct regcache *regcache, struct pcb *paddr)
 }
 
 static void
-bsd_kvm_fetch_registers (struct regcache *regcache, int regnum)
+bsd_kvm_fetch_registers (struct target_ops *ops,
+                        struct regcache *regcache, int regnum)
 {
   struct nlist nl[2];
 
@@ -192,7 +205,7 @@ bsd_kvm_fetch_registers (struct regcache *regcache, int regnum)
 
   if (nl[0].n_value != 0)
     {
-      /* Found dumppcb. If it contains a valid context, return
+      /* Found dumppcb.  If it contains a valid context, return
         immediately.  */
       if (bsd_kvm_fetch_pcb (regcache, (struct pcb *) nl[0].n_value))
        return;
@@ -246,7 +259,7 @@ bsd_kvm_fetch_registers (struct regcache *regcache, int regnum)
     }
 #endif
 
-  /* i18n: PCB == "Process Control Block" */
+  /* i18n: PCB == "Process Control Block".  */
   error (_("Cannot find a valid PCB"));
 }
 \f
@@ -286,7 +299,7 @@ bsd_kvm_proc_cmd (char *arg, int fromtty)
   target_fetch_registers (get_current_regcache (), -1);
 
   reinit_frame_cache ();
-  print_stack_frame (get_selected_frame (NULL), -1, 1);
+  print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC, 1);
 }
 
 #endif
@@ -295,7 +308,7 @@ static void
 bsd_kvm_pcb_cmd (char *arg, int fromtty)
 {
   if (arg == NULL)
-    /* i18n: PCB == "Process Control Block" */
+    /* i18n: PCB == "Process Control Block".  */
     error_no_arg (_("pcb address"));
 
   if (core_kd == NULL)
@@ -306,11 +319,12 @@ bsd_kvm_pcb_cmd (char *arg, int fromtty)
   target_fetch_registers (get_current_regcache (), -1);
 
   reinit_frame_cache ();
-  print_stack_frame (get_selected_frame (NULL), -1, 1);
+  print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC, 1);
 }
 
 static int
-bsd_kvm_thread_alive (ptid_t ptid)
+bsd_kvm_thread_alive (struct target_ops *ops,
+                     ptid_t ptid)
 {
   return 1;
 }
@@ -323,6 +337,12 @@ bsd_kvm_pid_to_str (struct target_ops *ops, ptid_t ptid)
   return buf;
 }
 
+static int
+bsd_kvm_return_one (struct target_ops *ops)
+{
+  return 1;
+}
+
 /* Add the libkvm interface to the list of all possible targets and
    register CUPPLY_PCB as the architecture-specific process control
    block interpreter.  */
@@ -345,9 +365,9 @@ Optionally specify the filename of a core dump.");
   bsd_kvm_ops.to_thread_alive = bsd_kvm_thread_alive;
   bsd_kvm_ops.to_pid_to_str = bsd_kvm_pid_to_str;
   bsd_kvm_ops.to_stratum = process_stratum;
-  bsd_kvm_ops.to_has_memory = 1;
-  bsd_kvm_ops.to_has_stack = 1;
-  bsd_kvm_ops.to_has_registers = 1;
+  bsd_kvm_ops.to_has_memory = bsd_kvm_return_one;
+  bsd_kvm_ops.to_has_stack = bsd_kvm_return_one;
+  bsd_kvm_ops.to_has_registers = bsd_kvm_return_one;
   bsd_kvm_ops.to_magic = OPS_MAGIC;
 
   add_target (&bsd_kvm_ops);
@@ -361,7 +381,7 @@ Generic command for manipulating the kernel memory interface."),
           _("Set current context from proc address"), &bsd_kvm_cmdlist);
 #endif
   add_cmd ("pcb", class_obscure, bsd_kvm_pcb_cmd,
-          /* i18n: PCB == "Process Control Block" */
+          /* i18n: PCB == "Process Control Block".  */
           _("Set current context from pcb address"), &bsd_kvm_cmdlist);
 
   /* Some notes on the ptid usage on this target.
@@ -376,7 +396,7 @@ Generic command for manipulating the kernel memory interface."),
      ptid (1, 1, 0) -> kvm inferior 1, in kernel
      ptid (1, 1, 1) -> kvm inferior 1, process 1
      ptid (1, 1, 2) -> kvm inferior 1, process 2
-     ptid (1, 1, n) -> kvm inferior 1, process n
-  */
+     ptid (1, 1, n) -> kvm inferior 1, process n  */
+
   bsd_kvm_ptid = ptid_build (1, 1, 0);
 }