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[PATCH] sim: punt zfree()


The sim keeps track of which allocations are zero-ed internally (via
zalloc) and then calls a helper "zfree" function rather than "free".
But this "zfree" function simply calls "free" itself.  Since I can
see no point in this and it is simply useless overhead, punt it.

The only real change is in hw-alloc.c where we remove the zalloc_p
tracking, and sim-utils.c where zfree is delete.  The rest of the
changes are a simple `sed` from "zfree" to "free".

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 sim/common/hw-alloc.c     |   10 ++--------
 sim/common/hw-base.c      |    2 +-
 sim/common/hw-handles.c   |    4 ++--
 sim/common/hw-instances.c |    6 +++---
 sim/common/hw-tree.c      |    8 ++++----
 sim/common/sim-core.c     |    8 ++++----
 sim/common/sim-cpu.c      |    2 +-
 sim/common/sim-hw.c       |    2 +-
 sim/common/sim-memopt.c   |    8 ++++----
 sim/common/sim-module.c   |   12 ++++++------
 sim/common/sim-options.c  |   10 +++++-----
 sim/common/sim-profile.c  |    4 ++--
 sim/common/sim-utils.c    |    8 +-------
 sim/common/sim-utils.h    |    2 --
 sim/common/sim-watch.c    |    2 +-
 sim/igen/table.c          |    2 +-
 sim/iq2000/iq2000.c       |    6 +++---
 sim/mips/dv-tx3904sio.c   |    4 ++--
 sim/mips/interp.c         |    6 +++---
 sim/ppc/cap.c             |    2 +-
 sim/ppc/corefile.c        |    4 ++--
 sim/ppc/device.c          |   24 ++++++++++++------------
 sim/ppc/emul_bugapi.c     |    4 ++--
 sim/ppc/emul_netbsd.c     |    8 ++++----
 sim/ppc/emul_unix.c       |    4 ++--
 sim/ppc/events.c          |    8 ++++----
 sim/ppc/hw_disk.c         |    4 ++--
 sim/ppc/hw_eeprom.c       |    2 +-
 sim/ppc/hw_htab.c         |    2 +-
 sim/ppc/hw_init.c         |    2 +-
 sim/ppc/hw_memory.c       |    6 +++---
 sim/ppc/main.c            |    6 ------
 sim/ppc/pk_disklabel.c    |    2 +-
 sim/ppc/sim_callbacks.h   |    2 --
 sim/ppc/sim_calls.c       |    5 -----
 sim/ppc/table.c           |    2 +-
 sim/ppc/tree.c            |    8 ++++----
 sim/sh64/sh64.c           |    6 +++---
 sim/v850/simops.c         |   16 ++++++++--------
 39 files changed, 98 insertions(+), 125 deletions(-)

diff --git a/sim/common/hw-alloc.c b/sim/common/hw-alloc.c
index db2b256..c63e2b1 100644
--- a/sim/common/hw-alloc.c
+++ b/sim/common/hw-alloc.c
@@ -28,7 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 struct hw_alloc_data {
   void *alloc;
-  int zalloc_p;
   struct hw_alloc_data *next;
 };
 
@@ -54,7 +53,6 @@ hw_zalloc (struct hw *me, unsigned long size)
 {
   struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data);
   memory->alloc = zalloc (size);
-  memory->zalloc_p = 1;
   memory->next = me->alloc_of_hw;
   me->alloc_of_hw = memory;
   return memory->alloc;
@@ -65,7 +63,6 @@ hw_malloc (struct hw *me, unsigned long size)
 {
   struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data);
   memory->alloc = zalloc (size);
-  memory->zalloc_p = 0;
   memory->next = me->alloc_of_hw;
   me->alloc_of_hw = memory;
   return memory->alloc;
@@ -84,11 +81,8 @@ hw_free (struct hw *me,
 	{
 	  struct hw_alloc_data *die = (*memory);
 	  (*memory) = die->next;
-	  if (die->zalloc_p)
-	    zfree (die->alloc);
-	  else
-	    free (die->alloc);
-	  zfree (die);
+	  free (die->alloc);
+	  free (die);
 	  return;
 	}
     }
diff --git a/sim/common/hw-base.c b/sim/common/hw-base.c
index 85d8009..480a74d 100644
--- a/sim/common/hw-base.c
+++ b/sim/common/hw-base.c
@@ -511,7 +511,7 @@ hw_delete (struct hw *me)
   delete_hw_alloc_data (me);
 
   /* finally */
-  zfree (me);
+  free (me);
 }
 
 void
diff --git a/sim/common/hw-handles.c b/sim/common/hw-handles.c
index b850e47..c33ff85 100644
--- a/sim/common/hw-handles.c
+++ b/sim/common/hw-handles.c
@@ -206,7 +206,7 @@ hw_handle_remove_ihandle (struct hw *hw,
 	{
 	  struct hw_handle_mapping *delete = *current_map;
 	  *current_map = delete->next;
-	  zfree (delete);
+	  free (delete);
 	  return;
 	}
       current_map = &(*current_map)->next;
@@ -227,7 +227,7 @@ hw_handle_remove_phandle (struct hw *hw,
 	{
 	  struct hw_handle_mapping *delete = *current_map;
 	  *current_map = delete->next;
-	  zfree (delete);
+	  free (delete);
 	  return;
 	}
       current_map = &(*current_map)->next;
diff --git a/sim/common/hw-instances.c b/sim/common/hw-instances.c
index c940cff..e31e35b 100644
--- a/sim/common/hw-instances.c
+++ b/sim/common/hw-instances.c
@@ -88,9 +88,9 @@ hw_instance_delete (struct hw_instance *instance)
     hw_abort (me, "no delete method");
   instance->method->delete(instance);
   if (instance->args != NULL)
-    zfree (instance->args);
+    free (instance->args);
   if (instance->path != NULL)
-    zfree (instance->path);
+    free (instance->path);
   if (instance->child == NULL)
     {
       /* only remove leaf nodes */
@@ -116,7 +116,7 @@ hw_instance_delete (struct hw_instance *instance)
       instance->child->parent = NULL;
     }
   cap_remove (me->ihandles, instance);
-  zfree (instance);
+  free (instance);
 #endif
 }
 
diff --git a/sim/common/hw-tree.c b/sim/common/hw-tree.c
index d3530d0..9f70948 100644
--- a/sim/common/hw-tree.c
+++ b/sim/common/hw-tree.c
@@ -561,7 +561,7 @@ parse_reg_property (struct hw *current,
   hw_add_reg_array_property (current, property_name,
 			     regs, nr_regs);
   
-  zfree (regs);
+  free (regs);
 }
 
 
@@ -598,7 +598,7 @@ parse_ranges_property (struct hw *current,
   /* create it */
   hw_add_range_array_property (current, property_name, ranges, nr_ranges);
   
-  zfree (ranges);
+  free (ranges);
 }
 
 
@@ -750,9 +750,9 @@ parse_string_property (struct hw *current,
   while (nr_strings > 0)
     {
       nr_strings--;
-      zfree (strings[nr_strings]);
+      free (strings[nr_strings]);
     }
-  zfree(strings);
+  free(strings);
 }
 
 
diff --git a/sim/common/sim-core.c b/sim/common/sim-core.c
index 31cb06b..2dbfc6e 100644
--- a/sim/common/sim-core.c
+++ b/sim/common/sim-core.c
@@ -75,9 +75,9 @@ sim_core_uninstall (SIM_DESC sd)
       curr = curr->next;
       if (tbd->free_buffer != NULL) {
 	SIM_ASSERT(tbd->buffer != NULL);
-	zfree(tbd->free_buffer);
+	free(tbd->free_buffer);
       }
-      zfree(tbd);
+      free(tbd);
     }
     core->common.map[map].first = NULL;
   }
@@ -424,8 +424,8 @@ sim_core_map_detach (SIM_DESC sd,
 	  sim_core_mapping *dead = (*entry);
 	  (*entry) = dead->next;
 	  if (dead->free_buffer != NULL)
-	    zfree (dead->free_buffer);
-	  zfree (dead);
+	    free (dead->free_buffer);
+	  free (dead);
 	  return;
 	}
     }
diff --git a/sim/common/sim-cpu.c b/sim/common/sim-cpu.c
index bce2a93..900b508 100644
--- a/sim/common/sim-cpu.c
+++ b/sim/common/sim-cpu.c
@@ -61,7 +61,7 @@ sim_cpu_free_all (SIM_DESC sd)
 void
 sim_cpu_free (sim_cpu *cpu)
 {
-  zfree (cpu);
+  free (cpu);
 }
 
 /* PC utilities.  */
diff --git a/sim/common/sim-hw.c b/sim/common/sim-hw.c
index 6b6b221..e946f67 100644
--- a/sim/common/sim-hw.c
+++ b/sim/common/sim-hw.c
@@ -319,7 +319,7 @@ static void
 sim_hw_uninstall (struct sim_state *sd)
 {
   /* hw_tree_delete (STATE_HW (sd)->tree); */
-  zfree (STATE_HW (sd));
+  free (STATE_HW (sd));
   STATE_HW (sd) = NULL;
 }
 
diff --git a/sim/common/sim-memopt.c b/sim/common/sim-memopt.c
index 5ef48cb..3e605f8 100644
--- a/sim/common/sim-memopt.c
+++ b/sim/common/sim-memopt.c
@@ -283,7 +283,7 @@ do_memopt_delete (SIM_DESC sd,
 	munmap ((*entry)->buffer, (*entry)->munmap_length);
       else
 #endif
-	zfree ((*entry)->buffer);
+	free ((*entry)->buffer);
     }
 
   /* delete it and its aliases */
@@ -294,7 +294,7 @@ do_memopt_delete (SIM_DESC sd,
       sim_memopt *dead = alias;
       alias = alias->alias;
       sim_core_detach (sd, NULL, dead->level, dead->space, dead->addr);
-      zfree (dead);
+      free (dead);
     }
   return SIM_RC_OK;
 }
@@ -630,7 +630,7 @@ sim_memory_uninstall (SIM_DESC sd)
 	    munmap ((*entry)->buffer, (*entry)->munmap_length);
 	  else
 #endif
-	    zfree ((*entry)->buffer);
+	    free ((*entry)->buffer);
 	}
 
       /* delete it and its aliases */
@@ -644,7 +644,7 @@ sim_memory_uninstall (SIM_DESC sd)
 	  sim_memopt *dead = alias;
 	  alias = alias->alias;
 	  sim_core_detach (sd, NULL, dead->level, dead->space, dead->addr);
-	  zfree (dead);
+	  free (dead);
 	}
     }
 }
diff --git a/sim/common/sim-module.c b/sim/common/sim-module.c
index 1c48b29..99020ff 100644
--- a/sim/common/sim-module.c
+++ b/sim/common/sim-module.c
@@ -228,7 +228,7 @@ sim_module_uninstall (SIM_DESC sd)
     for (d = modules->init_list; d != NULL; d = n)
       {
 	n = d->next;
-	zfree (d);
+	free (d);
       }
   }
 
@@ -238,7 +238,7 @@ sim_module_uninstall (SIM_DESC sd)
     for (d = modules->resume_list; d != NULL; d = n)
       {
 	n = d->next;
-	zfree (d);
+	free (d);
       }
   }
 
@@ -248,7 +248,7 @@ sim_module_uninstall (SIM_DESC sd)
     for (d = modules->suspend_list; d != NULL; d = n)
       {
 	n = d->next;
-	zfree (d);
+	free (d);
       }
   }
 
@@ -258,7 +258,7 @@ sim_module_uninstall (SIM_DESC sd)
     for (d = modules->uninstall_list; d != NULL; d = n)
       {
 	n = d->next;
-	zfree (d);
+	free (d);
       }
   }
 
@@ -268,11 +268,11 @@ sim_module_uninstall (SIM_DESC sd)
     for (d = modules->info_list; d != NULL; d = n)
       {
 	n = d->next;
-	zfree (d);
+	free (d);
       }
   }
 
-  zfree (modules);
+  free (modules);
   STATE_MODULES (sd) = NULL;
 }
 
diff --git a/sim/common/sim-options.c b/sim/common/sim-options.c
index 2df91e3..5f48d7f 100644
--- a/sim/common/sim-options.c
+++ b/sim/common/sim-options.c
@@ -669,11 +669,11 @@ sim_parse_args (SIM_DESC sd, char **argv)
 	}
     }
 
-  zfree (long_options);
-  zfree (short_options);
-  zfree (handlers);
-  zfree (opt_cpu);
-  zfree (orig_val);
+  free (long_options);
+  free (short_options);
+  free (handlers);
+  free (opt_cpu);
+  free (orig_val);
   return result;
 }
 
diff --git a/sim/common/sim-profile.c b/sim/common/sim-profile.c
index 837fada..7b581c8 100644
--- a/sim/common/sim-profile.c
+++ b/sim/common/sim-profile.c
@@ -500,7 +500,7 @@ profile_pc_cleanup (SIM_DESC sd)
       sim_cpu *cpu = STATE_CPU (sd, n);
       PROFILE_DATA *data = CPU_PROFILE_DATA (cpu);
       if (PROFILE_PC_COUNT (data) != NULL)
-	zfree (PROFILE_PC_COUNT (data));
+	free (PROFILE_PC_COUNT (data));
       PROFILE_PC_COUNT (data) = NULL;
       if (PROFILE_PC_EVENT (data) != NULL)
 	sim_events_deschedule (sd, PROFILE_PC_EVENT (data));
@@ -1307,6 +1307,6 @@ profile_uninstall (SIM_DESC sd)
 	}
 
       if (PROFILE_INSN_COUNT (data) != NULL)
-	zfree (PROFILE_INSN_COUNT (data));
+	free (PROFILE_INSN_COUNT (data));
     }
 }
diff --git a/sim/common/sim-utils.c b/sim/common/sim-utils.c
index a50358a..7417a1e 100644
--- a/sim/common/sim-utils.c
+++ b/sim/common/sim-utils.c
@@ -62,12 +62,6 @@ zalloc (unsigned long size)
   return xcalloc (1, size);
 }
 
-void
-zfree (void *data)
-{
-  free (data);
-}
-
 /* Allocate a sim_state struct.  */
 
 SIM_DESC
@@ -118,7 +112,7 @@ sim_state_free (SIM_DESC sd)
   SIM_STATE_FREE (sd);
 #endif
 
-  zfree (sd);
+  free (sd);
 }
 
 /* Return a pointer to the cpu data for CPU_NAME, or NULL if not found.  */
diff --git a/sim/common/sim-utils.h b/sim/common/sim-utils.h
index e3ff63a..68d9616 100644
--- a/sim/common/sim-utils.h
+++ b/sim/common/sim-utils.h
@@ -27,8 +27,6 @@ void *zalloc (unsigned long size);
 #define ZALLOC(TYPE) (TYPE*)zalloc(sizeof (TYPE))
 #define NZALLOC(TYPE,N) (TYPE*)zalloc(sizeof (TYPE) * (N))
 
-void zfree(void*);
-
 /* Turn VALUE into a string with commas.  */
 char *sim_add_commas (char *, int, unsigned long);
 
diff --git a/sim/common/sim-watch.c b/sim/common/sim-watch.c
index c1d33be..2d0c548 100644
--- a/sim/common/sim-watch.c
+++ b/sim/common/sim-watch.c
@@ -100,7 +100,7 @@ do_watchpoint_delete (SIM_DESC sd,
 	  sim_watch_point *dead = (*entry);
 	  (*entry) = (*entry)->next;
 	  sim_events_deschedule (sd, dead->event);
-	  zfree (dead);
+	  free (dead);
 	  status = SIM_RC_OK;
 	}
       else
diff --git a/sim/igen/table.c b/sim/igen/table.c
index d6edebd..57d2af8 100644
--- a/sim/igen/table.c
+++ b/sim/igen/table.c
@@ -131,7 +131,7 @@ table_push (table *root,
       ff = fopen (dup_name, "rb");
       if (ff)
 	break;
-      /* zfree (dup_name); */
+      /* free (dup_name); */
       if (include->next == NULL)
 	{
 	  if (line != NULL)
diff --git a/sim/iq2000/iq2000.c b/sim/iq2000/iq2000.c
index e880b00..30369a6 100644
--- a/sim/iq2000/iq2000.c
+++ b/sim/iq2000/iq2000.c
@@ -107,7 +107,7 @@ do_syscall (SIM_CPU *current_cpu, PCADDR pc)
       SET_H_GR (ret_reg,
 		sim_io_write (CPU_STATE (current_cpu),
 			      PARM1, buf, PARM3));
-      zfree (buf);
+      free (buf);
       break;
 
     case SYS_lseek:
@@ -127,7 +127,7 @@ do_syscall (SIM_CPU *current_cpu, PCADDR pc)
 		sim_io_read (CPU_STATE (current_cpu),
 			     PARM1, buf, PARM3));
       sim_write (CPU_STATE (current_cpu), CPU2DATA(PARM2), buf, PARM3);
-      zfree (buf);
+      free (buf);
       break;
 	    
     case SYS_open:
@@ -135,7 +135,7 @@ do_syscall (SIM_CPU *current_cpu, PCADDR pc)
       SET_H_GR (ret_reg,
 		sim_io_open (CPU_STATE (current_cpu),
 			     buf, PARM2));
-      zfree (buf);
+      free (buf);
       break;
 
     case SYS_close:
diff --git a/sim/mips/dv-tx3904sio.c b/sim/mips/dv-tx3904sio.c
index c1aa3d3..0a4d514 100644
--- a/sim/mips/dv-tx3904sio.c
+++ b/sim/mips/dv-tx3904sio.c
@@ -583,7 +583,7 @@ tx3904sio_fifo_push(struct hw* me, struct tx3904sio_fifo* fifo, char it)
       char* next_buf = zalloc(next_size);
       memcpy(next_buf, fifo->buffer, fifo->used);
 
-      if(fifo->buffer != NULL) zfree(fifo->buffer);
+      if(fifo->buffer != NULL) free(fifo->buffer);
       fifo->buffer = next_buf;
       fifo->size = next_size;
     }
@@ -599,7 +599,7 @@ tx3904sio_fifo_reset(struct hw* me, struct tx3904sio_fifo* fifo)
   /* HW_TRACE ((me, "reset fifo")); */
   fifo->used = 0;
   fifo->size = 0;
-  zfree(fifo->buffer);
+  free(fifo->buffer);
   fifo->buffer = 0;
 }
 
diff --git a/sim/mips/interp.c b/sim/mips/interp.c
index a276d06..492ae60 100644
--- a/sim/mips/interp.c
+++ b/sim/mips/interp.c
@@ -1285,7 +1285,7 @@ sim_monitor (SIM_DESC sd,
       {
 	char *path = fetch_str (sd, A0);
 	V0 = sim_io_open (sd, path, (int)A1);
-	zfree (path);
+	free (path);
 	break;
       }
 
@@ -1296,7 +1296,7 @@ sim_monitor (SIM_DESC sd,
 	char *buf = zalloc (nr);
 	V0 = sim_io_read (sd, fd, buf, nr);
 	sim_write (sd, A1, buf, nr);
-	zfree (buf);
+	free (buf);
       }
       break;
 
@@ -1311,7 +1311,7 @@ sim_monitor (SIM_DESC sd,
 	    sim_io_flush_stdout (sd);
 	else if (fd == 2)
 	    sim_io_flush_stderr (sd);
-	zfree (buf);
+	free (buf);
 	break;
       }
 
diff --git a/sim/ppc/cap.c b/sim/ppc/cap.c
index a3be304..281429d 100644
--- a/sim/ppc/cap.c
+++ b/sim/ppc/cap.c
@@ -123,7 +123,7 @@ cap_remove(cap *db,
     if ((*current_map)->internal == internal) {
       cap_mapping *delete = *current_map;
       *current_map = delete->next;
-      zfree(delete);
+      free(delete);
       return;
     }
     current_map = &(*current_map)->next;
diff --git a/sim/ppc/corefile.c b/sim/ppc/corefile.c
index 00295bb..332eefa 100644
--- a/sim/ppc/corefile.c
+++ b/sim/ppc/corefile.c
@@ -93,9 +93,9 @@ core_init(core *memory)
       curr = curr->next;
       if (tbd->free_buffer != NULL) {
 	ASSERT(tbd->buffer != NULL);
-	zfree(tbd->free_buffer);
+	free(tbd->free_buffer);
       }
-      zfree(tbd);
+      free(tbd);
     }
     map->first = NULL;
   }
diff --git a/sim/ppc/device.c b/sim/ppc/device.c
index ffb0943..14b10ce 100644
--- a/sim/ppc/device.c
+++ b/sim/ppc/device.c
@@ -101,7 +101,7 @@ detach_device_interrupt_edge(device *me,
       if (old_edge->disposition == permenant_object)
 	device_error(me, "attempt to delete permenant interrupt");
       *list = old_edge->next;
-      zfree(old_edge);
+      free(old_edge);
       return;
     }
   }
@@ -120,7 +120,7 @@ clean_device_interrupt_edges(device_interrupt_edge **list)
       break;
     case tempoary_object:
       *list = old_edge->next;
-      zfree(old_edge);
+      free(old_edge);
       break;
     }
   }
@@ -590,9 +590,9 @@ device_instance_delete(device_instance *instance)
     device_error(me, "no delete method");
   instance->callback->delete(instance);
   if (instance->args != NULL)
-    zfree(instance->args);
+    free(instance->args);
   if (instance->path != NULL)
-    zfree(instance->path);
+    free(instance->path);
   if (instance->child == NULL) {
     /* only remove leaf nodes */
     device_instance **curr = &me->instances;
@@ -614,7 +614,7 @@ device_instance_delete(device_instance *instance)
     instance->child->parent = NULL;
   }
   cap_remove(me->ihandles, instance);
-  zfree(instance);
+  free(instance);
 }
 
 INLINE_DEVICE\
@@ -791,7 +791,7 @@ device_set_property(device *me,
       device_error(me, "conflict between type of new and old value for property %s", property);
     /* replace its value */
     if (value->array != NULL)
-      zfree((void*)value->array);
+      free((void*)value->array);
     new_array = (sizeof_array > 0
 		 ? zalloc(sizeof_array)
 		 : (void*)0);
@@ -822,7 +822,7 @@ clean_device_properties(device *me)
       /* zap the current value, will be initialized later */
       ASSERT(current->init_array != NULL);
       if (current->value->array != NULL) {
-	zfree((void*)current->value->array);
+	free((void*)current->value->array);
 	current->value->array = NULL;
       }
       delete_point = &(*delete_point)->next;
@@ -832,9 +832,9 @@ clean_device_properties(device *me)
       ASSERT(current->init_array == NULL);
       *delete_point = current->next;
       if (current->value->array != NULL)
-	zfree((void*)current->value->array);
-      zfree(current->value);
-      zfree(current);
+	free((void*)current->value->array);
+      free(current->value);
+      free(current);
       break;
     }
   }
@@ -1239,7 +1239,7 @@ device_add_range_array_property(device *me,
 		      cells, sizeof_cells,
 		      NULL, permenant_object);
 
-  zfree(cells);
+  free(cells);
 }
 
 INLINE_DEVICE\
@@ -1330,7 +1330,7 @@ device_add_reg_array_property(device *me,
 		      cells, sizeof_cells,
 		      NULL, permenant_object);
 
-  zfree(cells);
+  free(cells);
 }
 
 INLINE_DEVICE\
diff --git a/sim/ppc/emul_bugapi.c b/sim/ppc/emul_bugapi.c
index 9e09d24..7141b35 100644
--- a/sim/ppc/emul_bugapi.c
+++ b/sim/ppc/emul_bugapi.c
@@ -383,7 +383,7 @@ emul_bugapi_do_read(os_emul_data *bugapi,
       status--;
   }
 
-  zfree(scratch_buffer);
+  free(scratch_buffer);
   return status;
 }
 
@@ -472,7 +472,7 @@ emul_bugapi_do_write(os_emul_data *bugapi,
       /* write */
       device_instance_write(bugapi->output, scratch_buffer, nbytes);
 
-      zfree(scratch_buffer);
+      free(scratch_buffer);
     }
 
   if (suffix)
diff --git a/sim/ppc/emul_netbsd.c b/sim/ppc/emul_netbsd.c
index f81c9cb..1a8987f 100644
--- a/sim/ppc/emul_netbsd.c
+++ b/sim/ppc/emul_netbsd.c
@@ -258,7 +258,7 @@ write_direntries(unsigned_word addr,
     nbytes -= in->d_reclen;
     addr += in->d_reclen;
     buf += in->d_reclen;
-    zfree(out);
+    free(out);
   }
 }
 #endif
@@ -346,7 +346,7 @@ do_read(os_emul_data *emul,
   if (status > 0)
     emul_write_buffer(scratch_buffer, buf, status, processor, cia);
 
-  zfree(scratch_buffer);
+  free(scratch_buffer);
 }
 
 
@@ -377,7 +377,7 @@ do_write(os_emul_data *emul,
   /* write */
   status = write(d, scratch_buffer, nbytes);
   emul_write_status(processor, status, errno);
-  zfree(scratch_buffer);
+  free(scratch_buffer);
 
   flush_stdoutput();
 }
@@ -916,7 +916,7 @@ do_getdirentries(os_emul_data *emul,
   if (status > 0)
     write_direntries(buf_addr, buf, status, processor, cia);
   if (buf != NULL)
-    zfree(buf);
+    free(buf);
 }
 #endif
 
diff --git a/sim/ppc/emul_unix.c b/sim/ppc/emul_unix.c
index 0fa5d3f..36738c4 100644
--- a/sim/ppc/emul_unix.c
+++ b/sim/ppc/emul_unix.c
@@ -240,7 +240,7 @@ do_unix_read(os_emul_data *emul,
   if (status > 0)
     emul_write_buffer(scratch_buffer, buf, status, processor, cia);
 
-  zfree(scratch_buffer);
+  free(scratch_buffer);
 }
 
 
@@ -270,7 +270,7 @@ do_unix_write(os_emul_data *emul,
   /* write */
   status = write(d, scratch_buffer, nbytes);
   emul_write_status(processor, status, errno);
-  zfree(scratch_buffer);
+  free(scratch_buffer);
 
   flush_stdoutput();
 }
diff --git a/sim/ppc/events.c b/sim/ppc/events.c
index 72c9138..ca23687 100644
--- a/sim/ppc/events.c
+++ b/sim/ppc/events.c
@@ -114,7 +114,7 @@ event_queue_init(event_queue *queue)
     while (event != NULL) {
       event_entry *dead = event;
       event = event->next;
-      zfree(dead);
+      free(dead);
     }
     queue->held = NULL;
     queue->held_end = &queue->held;
@@ -128,7 +128,7 @@ event_queue_init(event_queue *queue)
   while (event != NULL) {
     event_entry *dead = event;
     event = event->next;
-    zfree(dead);
+    free(dead);
   }
   queue->queue = NULL;
     
@@ -304,7 +304,7 @@ event_queue_deschedule(event_queue *events,
 			   (long)current->time_of_event,
 			   (long)current->handler,
 			   (long)current->data));
-      zfree(current);
+      free(current);
       update_time_from_event(events);
     }
     else {
@@ -392,7 +392,7 @@ event_queue_process(event_queue *events)
 			 (long)to_do->time_of_event,
 			 (long)handler,
 			 (long)data));
-    zfree(to_do);
+    free(to_do);
     /* Always re-compute the time to the next event so that HANDLER()
        can safely insert new events into the queue. */
     update_time_from_event(events);
diff --git a/sim/ppc/hw_disk.c b/sim/ppc/hw_disk.c
index 0e9573b..041ed38 100644
--- a/sim/ppc/hw_disk.c
+++ b/sim/ppc/hw_disk.c
@@ -203,7 +203,7 @@ open_disk_image(device *me,
   if (disk->image != NULL)
     fclose(disk->image);
   if (disk->name != NULL)
-    zfree(disk->name);
+    free(disk->name);
   disk->name = strdup(name);
   disk->image = fopen(disk->name, disk->read_only ? "r" : "r+");
   if (disk->image == NULL) {
@@ -351,7 +351,7 @@ hw_disk_instance_delete(device_instance *instance)
   hw_disk_instance *data = device_instance_data(instance);
   DITRACE(disk, ("delete - instance=%ld\n",
 		 (unsigned long)device_instance_to_external(instance)));
-  zfree(data);
+  free(data);
 }
 
 static int
diff --git a/sim/ppc/hw_eeprom.c b/sim/ppc/hw_eeprom.c
index 5092984..069103b 100644
--- a/sim/ppc/hw_eeprom.c
+++ b/sim/ppc/hw_eeprom.c
@@ -735,7 +735,7 @@ static void
 hw_eeprom_instance_delete(device_instance *instance)
 {
   hw_eeprom_instance *data = device_instance_data(instance);
-  zfree(data);
+  free(data);
 }
 
 static int
diff --git a/sim/ppc/hw_htab.c b/sim/ppc/hw_htab.c
index 3ad539d..5234f0f 100644
--- a/sim/ppc/hw_htab.c
+++ b/sim/ppc/hw_htab.c
@@ -486,7 +486,7 @@ htab_dma_binary(bfd *abfd,
 			      1 /*violate_read_only*/)
       != section_size)
     device_error(me, "broken dma transfer");
-  zfree(section_init); /* only free if load */
+  free(section_init); /* only free if load */
 }
 
 /* create a memory map from a binaries virtual addresses to a copy of
diff --git a/sim/ppc/hw_init.c b/sim/ppc/hw_init.c
index 118529d..0446774 100644
--- a/sim/ppc/hw_init.c
+++ b/sim/ppc/hw_init.c
@@ -405,7 +405,7 @@ update_for_binary_section(bfd *abfd,
 				1 /*violate_read_only*/)
 	!= section_size)
       device_error(me, "broken transfer\n");
-    zfree(section_init); /* only free if load */
+    free(section_init); /* only free if load */
   }
 }
 
diff --git a/sim/ppc/hw_memory.c b/sim/ppc/hw_memory.c
index 117324b..f27f6c8 100644
--- a/sim/ppc/hw_memory.c
+++ b/sim/ppc/hw_memory.c
@@ -138,7 +138,7 @@ hw_memory_set_available(device *me,
   }
   /* update */
   device_set_array_property(me, "available", available, sizeof_available);
-  zfree(available);
+  free(available);
 }
 
 
@@ -155,7 +155,7 @@ hw_memory_init_address(device *me)
       hw_memory_chunk *dead_chunk = curr_chunk;
       curr_chunk = dead_chunk->next;
       dead_chunk->next = NULL;
-      zfree(dead_chunk);
+      free(dead_chunk);
     }
   }
 
@@ -483,7 +483,7 @@ hw_memory_instance_release(device_instance *instance,
       ASSERT(chunk->address + chunk->size == delete->address);
       chunk->size += delete->size;
       chunk->next = delete->next;
-      zfree(delete);
+      free(delete);
     }
     else {
       chunk = chunk->next;
diff --git a/sim/ppc/main.c b/sim/ppc/main.c
index 554242c..7cb5036 100644
--- a/sim/ppc/main.c
+++ b/sim/ppc/main.c
@@ -253,12 +253,6 @@ zalloc(long size)
   return memory;
 }
 
-void
-zfree(void *chunk)
-{
-  free(chunk);
-}
-
 /* When a CNTRL-C occures, queue an event to shut down the simulation */
 
 static RETSIGTYPE
diff --git a/sim/ppc/pk_disklabel.c b/sim/ppc/pk_disklabel.c
index 91dcf7c..0a9d32a 100644
--- a/sim/ppc/pk_disklabel.c
+++ b/sim/ppc/pk_disklabel.c
@@ -111,7 +111,7 @@ disklabel_delete(device_instance *instance)
 {
   disklabel *label = device_instance_data(instance);
   device_instance_delete(label->raw_disk);
-  zfree(label);
+  free(label);
 }
 
 
diff --git a/sim/ppc/sim_callbacks.h b/sim/ppc/sim_callbacks.h
index 9fb815b..6f3473d 100644
--- a/sim/ppc/sim_callbacks.h
+++ b/sim/ppc/sim_callbacks.h
@@ -114,6 +114,4 @@ void *zalloc
 
 #define ZALLOC(TYPE) (TYPE*)zalloc(sizeof (TYPE))
 
-void zfree(void*);
-
 #endif
diff --git a/sim/ppc/sim_calls.c b/sim/ppc/sim_calls.c
index 276161b..9336516 100644
--- a/sim/ppc/sim_calls.c
+++ b/sim/ppc/sim_calls.c
@@ -390,8 +390,3 @@ zalloc(long size)
   memset(memory, 0, size);
   return memory;
 }
-
-void zfree(void *data)
-{
-  free(data);
-}
diff --git a/sim/ppc/table.c b/sim/ppc/table.c
index db3f783..75bc679 100644
--- a/sim/ppc/table.c
+++ b/sim/ppc/table.c
@@ -102,7 +102,7 @@ table_push (table *root,
       fd = open (dup_name, O_RDONLY, 0);
       if (fd >= 0)
 	break;
-      /* zfree (dup_name); */
+      /* free (dup_name); */
       if (include->next == NULL)
 	{
 	  error ("Problem opening file `%s'\n", file_name);
diff --git a/sim/ppc/tree.c b/sim/ppc/tree.c
index 4338cb0..4b14323 100644
--- a/sim/ppc/tree.c
+++ b/sim/ppc/tree.c
@@ -547,7 +547,7 @@ parse_reg_property(device *current,
   device_add_reg_array_property(current, property_name,
 				regs, nr_regs);
 
-  zfree(regs);
+  free(regs);
 }
 
 
@@ -584,7 +584,7 @@ parse_ranges_property(device *current,
   /* create it */
   device_add_range_array_property(current, property_name, ranges, nr_ranges);
 
-  zfree(ranges);
+  free(ranges);
 }
 
 
@@ -770,9 +770,9 @@ parse_string_property(device *current,
   /* flush the created string */
   while (nr_strings > 0) {
     nr_strings--;
-    zfree(strings[nr_strings]);
+    free(strings[nr_strings]);
   }
-  zfree(strings);
+  free(strings);
 }
 
 
diff --git a/sim/sh64/sh64.c b/sim/sh64/sh64.c
index 3c5e65b..fd142c6 100644
--- a/sim/sh64/sh64.c
+++ b/sim/sh64/sh64.c
@@ -594,7 +594,7 @@ trap_handler (SIM_CPU *current_cpu, int shmedia_abi_p, UQI trapnum, PCADDR pc)
 	    SET_H_GR (ret_reg,
 		      sim_io_write (CPU_STATE (current_cpu),
 				    PARM1, buf, PARM3));
-	    zfree (buf);
+	    free (buf);
 	    break;
 
 	  case SYS_lseek:
@@ -614,7 +614,7 @@ trap_handler (SIM_CPU *current_cpu, int shmedia_abi_p, UQI trapnum, PCADDR pc)
 		      sim_io_read (CPU_STATE (current_cpu),
 				   PARM1, buf, PARM3));
 	    sim_write (CPU_STATE (current_cpu), PARM2, buf, PARM3);
-	    zfree (buf);
+	    free (buf);
 	    break;
 	    
 	  case SYS_open:
@@ -622,7 +622,7 @@ trap_handler (SIM_CPU *current_cpu, int shmedia_abi_p, UQI trapnum, PCADDR pc)
 	    SET_H_GR (ret_reg,
 		      sim_io_open (CPU_STATE (current_cpu),
 				   buf, PARM2));
-	    zfree (buf);
+	    free (buf);
 	    break;
 
 	  case SYS_close:
diff --git a/sim/v850/simops.c b/sim/v850/simops.c
index 49f1200..91315f3 100644
--- a/sim/v850/simops.c
+++ b/sim/v850/simops.c
@@ -1648,7 +1648,7 @@ OP_10007E0 ()
 	    char **argv = fetch_argv (simulator, PARM2);
 	    char **envp = fetch_argv (simulator, PARM3);
 	    RETVAL = execve (path, argv, envp);
-	    zfree (path);
+	    free (path);
 	    freeargv (argv);
 	    freeargv (envp);
 	    break;
@@ -1663,7 +1663,7 @@ OP_10007E0 ()
 	    char *path = fetch_str (simulator, PARM1);
 	    char **argv = fetch_argv (simulator, PARM2);
 	    RETVAL = execv (path, argv);
-	    zfree (path);
+	    free (path);
 	    freeargv (argv);
 	    break;
 	  }
@@ -1706,7 +1706,7 @@ OP_10007E0 ()
 	    char *buf = zalloc (PARM3);
 	    RETVAL = sim_io_read (simulator, PARM1, buf, PARM3);
 	    sim_write (simulator, PARM2, buf, PARM3);
-	    zfree (buf);
+	    free (buf);
 	    break;
 	  }
 #endif
@@ -1720,7 +1720,7 @@ OP_10007E0 ()
 	      RETVAL = sim_io_write_stdout (simulator, buf, PARM3);
 	    else
 	      RETVAL = sim_io_write (simulator, PARM1, buf, PARM3);
-	    zfree (buf);
+	    free (buf);
 	    break;
 	  }
 #endif
@@ -1742,7 +1742,7 @@ OP_10007E0 ()
 	  {
 	    char *buf = fetch_str (simulator, PARM1);
 	    RETVAL = sim_io_open (simulator, buf, PARM2);
-	    zfree (buf);
+	    free (buf);
 	    break;
 	  }
 #endif
@@ -1775,7 +1775,7 @@ OP_10007E0 ()
 
 	    RETVAL = stat (path, &host_stat);
 
-	    zfree (path);
+	    free (path);
 	    buf = PARM2;
 
 	    /* Just wild-assed guesses.  */
@@ -1801,7 +1801,7 @@ OP_10007E0 ()
 	  {
 	    char *path = fetch_str (simulator, PARM1);
 	    RETVAL = chown (path, PARM2, PARM3);
-	    zfree (path);
+	    free (path);
 	  }
 	  break;
 #endif
@@ -1813,7 +1813,7 @@ OP_10007E0 ()
 	  {
 	    char *path = fetch_str (simulator, PARM1);
 	    RETVAL = chmod (path, PARM2);
-	    zfree (path);
+	    free (path);
 	  }
 	  break;
 #endif
-- 
1.7.3.1


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