ChangeLog:
* spu-tdep.c: Include "infcall.h". (spu_address_class_type_flags): New function. (spu_address_class_type_flags_to_name): Likewise. (spu_address_class_name_to_type_flags): Likewise. (spu_pointer_to_address): Handle __ea pointers. (spu_auto_flush_cache_p): New static variable. (spu_objfile_from_frame): New function. (flush_ea_cache, spu_attach_normal_stop): Likewise. (show_spu_auto_flush_cache): Likewise. (spu_gdbarch_init): Install address class handlers. (_initialize_spu_tdep): Attach to normal_stop observer. Install "set spu auto-flush-cache" / "show spu auto-flush-cache" commands. * NEWS: Mention "set/show spu auto-flush-cache" commands. doc/ChangeLog: * gdb.texinfo (Cell Broadband Engine SPU architecture): Document the "set spu auto-flush-cache" and "show spu auto-flush-cache" commands.
This commit is contained in:
Ulrich Weigand
parent
3285f3fe1a
commit
ff1a52c620
|
|
@ -1,3 +1,21 @@
|
|||
2009-07-31 Ulrich Weigand <uweigand@de.ibm.com>
|
||||
|
||||
* spu-tdep.c: Include "infcall.h".
|
||||
(spu_address_class_type_flags): New function.
|
||||
(spu_address_class_type_flags_to_name): Likewise.
|
||||
(spu_address_class_name_to_type_flags): Likewise.
|
||||
(spu_pointer_to_address): Handle __ea pointers.
|
||||
(spu_auto_flush_cache_p): New static variable.
|
||||
(spu_objfile_from_frame): New function.
|
||||
(flush_ea_cache, spu_attach_normal_stop): Likewise.
|
||||
(show_spu_auto_flush_cache): Likewise.
|
||||
(spu_gdbarch_init): Install address class handlers.
|
||||
(_initialize_spu_tdep): Attach to normal_stop observer.
|
||||
Install "set spu auto-flush-cache" / "show spu auto-flush-cache"
|
||||
commands.
|
||||
|
||||
* NEWS: Mention "set/show spu auto-flush-cache" commands.
|
||||
|
||||
2009-07-31 Ulrich Weigand <uweigand@de.ibm.com>
|
||||
|
||||
* spu-tdep.c: Include "block.h".
|
||||
|
|
|
|||
5
gdb/NEWS
5
gdb/NEWS
|
|
@ -263,6 +263,11 @@ set spu stop-on-load
|
|||
show spu stop-on-load
|
||||
Control whether to stop for new SPE threads during Cell/B.E. debugging.
|
||||
|
||||
set spu auto-flush-cache
|
||||
show spu auto-flush-cache
|
||||
Control whether to automatically flush the software-managed cache
|
||||
during Cell/B.E. debugging.
|
||||
|
||||
set sh calling-convention
|
||||
show sh calling-convention
|
||||
Control the calling convention used when calling SH target functions.
|
||||
|
|
|
|||
|
|
@ -1,3 +1,8 @@
|
|||
2009-07-31 Ulrich Weigand <uweigand@de.ibm.com>
|
||||
|
||||
* gdb.texinfo (Cell Broadband Engine SPU architecture): Document the
|
||||
"set spu auto-flush-cache" and "show spu auto-flush-cache" commands.
|
||||
|
||||
2009-07-31 Ulrich Weigand <uweigand@de.ibm.com>
|
||||
|
||||
* gdb.texinfo (Cell Broadband Engine SPU architecture): Document the
|
||||
|
|
|
|||
|
|
@ -17505,6 +17505,16 @@ function. The default is @code{off}.
|
|||
@kindex show spu
|
||||
Show whether to stop for new SPE threads.
|
||||
|
||||
@item set spu auto-flush-cache @var{arg}
|
||||
Set whether to automatically flush the software-managed cache. When set to
|
||||
@code{on}, @value{GDBN} will automatically cause the SPE software-managed
|
||||
cache to be flushed whenever SPE execution stops. This provides a consistent
|
||||
view of PowerPC memory that is accessed via the cache. If an application
|
||||
does not use the software-managed cache, this option has no effect.
|
||||
|
||||
@item show spu auto-flush-cache
|
||||
Show whether to automatically flush the software-managed cache.
|
||||
|
||||
@end table
|
||||
|
||||
@node PowerPC
|
||||
|
|
|
|||
142
gdb/spu-tdep.c
142
gdb/spu-tdep.c
|
|
@ -42,6 +42,7 @@
|
|||
#include "floatformat.h"
|
||||
#include "block.h"
|
||||
#include "observer.h"
|
||||
#include "infcall.h"
|
||||
|
||||
#include "spu-tdep.h"
|
||||
|
||||
|
|
@ -52,6 +53,8 @@ static struct cmd_list_element *showspucmdlist = NULL;
|
|||
|
||||
/* Whether to stop for new SPE contexts. */
|
||||
static int spu_stop_on_load_p = 0;
|
||||
/* Whether to automatically flush the SW-managed cache. */
|
||||
static int spu_auto_flush_cache_p = 1;
|
||||
|
||||
|
||||
/* The tdep structure. */
|
||||
|
|
@ -340,7 +343,8 @@ spu_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
|
|||
return default_register_reggroup_p (gdbarch, regnum, group);
|
||||
}
|
||||
|
||||
/* Address conversion. */
|
||||
|
||||
/* Address handling. */
|
||||
|
||||
static int
|
||||
spu_gdbarch_id (struct gdbarch *gdbarch)
|
||||
|
|
@ -377,6 +381,37 @@ spu_lslr (int id)
|
|||
return strtoulst (buf, NULL, 16);
|
||||
}
|
||||
|
||||
static int
|
||||
spu_address_class_type_flags (int byte_size, int dwarf2_addr_class)
|
||||
{
|
||||
if (dwarf2_addr_class == 1)
|
||||
return TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const char *
|
||||
spu_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags)
|
||||
{
|
||||
if (type_flags & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
|
||||
return "__ea";
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int
|
||||
spu_address_class_name_to_type_flags (struct gdbarch *gdbarch,
|
||||
const char *name, int *type_flags_ptr)
|
||||
{
|
||||
if (strcmp (name, "__ea") == 0)
|
||||
{
|
||||
*type_flags_ptr = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1;
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
spu_address_to_pointer (struct gdbarch *gdbarch,
|
||||
struct type *type, gdb_byte *buf, CORE_ADDR addr)
|
||||
|
|
@ -396,6 +431,10 @@ spu_pointer_to_address (struct gdbarch *gdbarch,
|
|||
ULONGEST addr
|
||||
= extract_unsigned_integer (buf, TYPE_LENGTH (type), byte_order);
|
||||
|
||||
/* Do not convert __ea pointers. */
|
||||
if (TYPE_ADDRESS_CLASS_1 (type))
|
||||
return addr;
|
||||
|
||||
return addr? SPUADDR (id, addr & lslr) : 0;
|
||||
}
|
||||
|
||||
|
|
@ -1820,6 +1859,73 @@ spu_catch_start (struct objfile *objfile)
|
|||
}
|
||||
|
||||
|
||||
/* Look up OBJFILE loaded into FRAME's SPU context. */
|
||||
static struct objfile *
|
||||
spu_objfile_from_frame (struct frame_info *frame)
|
||||
{
|
||||
struct gdbarch *gdbarch = get_frame_arch (frame);
|
||||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||||
struct objfile *obj;
|
||||
|
||||
if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
|
||||
return NULL;
|
||||
|
||||
ALL_OBJFILES (obj)
|
||||
{
|
||||
if (obj->sections != obj->sections_end
|
||||
&& SPUADDR_SPU (obj_section_addr (obj->sections)) == tdep->id)
|
||||
return obj;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Flush cache for ea pointer access if available. */
|
||||
static void
|
||||
flush_ea_cache (void)
|
||||
{
|
||||
struct minimal_symbol *msymbol;
|
||||
struct objfile *obj;
|
||||
|
||||
if (!has_stack_frames ())
|
||||
return;
|
||||
|
||||
obj = spu_objfile_from_frame (get_current_frame ());
|
||||
if (obj == NULL)
|
||||
return;
|
||||
|
||||
/* Lookup inferior function __cache_flush. */
|
||||
msymbol = lookup_minimal_symbol ("__cache_flush", NULL, obj);
|
||||
if (msymbol != NULL)
|
||||
{
|
||||
struct type *type;
|
||||
CORE_ADDR addr;
|
||||
|
||||
type = objfile_type (obj)->builtin_void;
|
||||
type = lookup_function_type (type);
|
||||
type = lookup_pointer_type (type);
|
||||
addr = SYMBOL_VALUE_ADDRESS (msymbol);
|
||||
|
||||
call_function_by_hand (value_from_pointer (type, addr), 0, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
/* This handler is called when the inferior has stopped. If it is stopped in
|
||||
SPU architecture then flush the ea cache if used. */
|
||||
static void
|
||||
spu_attach_normal_stop (struct bpstats *bs, int print_frame)
|
||||
{
|
||||
if (!spu_auto_flush_cache_p)
|
||||
return;
|
||||
|
||||
/* Temporarily reset spu_auto_flush_cache_p to avoid recursively
|
||||
re-entering this function when __cache_flush stops. */
|
||||
spu_auto_flush_cache_p = 0;
|
||||
flush_ea_cache ();
|
||||
spu_auto_flush_cache_p = 1;
|
||||
}
|
||||
|
||||
|
||||
/* "info spu" commands. */
|
||||
|
||||
static void
|
||||
|
|
@ -2411,6 +2517,14 @@ show_spu_stop_on_load (struct ui_file *file, int from_tty,
|
|||
value);
|
||||
}
|
||||
|
||||
static void
|
||||
show_spu_auto_flush_cache (struct ui_file *file, int from_tty,
|
||||
struct cmd_list_element *c, const char *value)
|
||||
{
|
||||
fprintf_filtered (file, _("Automatic software-cache flush is %s.\n"),
|
||||
value);
|
||||
}
|
||||
|
||||
|
||||
/* Set up gdbarch struct. */
|
||||
|
||||
|
|
@ -2480,10 +2594,16 @@ spu_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
|
|||
set_gdbarch_double_format (gdbarch, floatformats_ieee_double);
|
||||
set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
|
||||
|
||||
/* Address conversion. */
|
||||
/* Address handling. */
|
||||
set_gdbarch_address_to_pointer (gdbarch, spu_address_to_pointer);
|
||||
set_gdbarch_pointer_to_address (gdbarch, spu_pointer_to_address);
|
||||
set_gdbarch_integer_to_address (gdbarch, spu_integer_to_address);
|
||||
set_gdbarch_address_class_type_flags (gdbarch, spu_address_class_type_flags);
|
||||
set_gdbarch_address_class_type_flags_to_name
|
||||
(gdbarch, spu_address_class_type_flags_to_name);
|
||||
set_gdbarch_address_class_name_to_type_flags
|
||||
(gdbarch, spu_address_class_name_to_type_flags);
|
||||
|
||||
|
||||
/* Inferior function calls. */
|
||||
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
|
||||
|
|
@ -2536,6 +2656,9 @@ _initialize_spu_tdep (void)
|
|||
/* Install spu stop-on-load handler. */
|
||||
observer_attach_new_objfile (spu_catch_start);
|
||||
|
||||
/* Add ourselves to normal_stop event chain. */
|
||||
observer_attach_normal_stop (spu_attach_normal_stop);
|
||||
|
||||
/* Add root prefix command for all "set spu"/"show spu" commands. */
|
||||
add_prefix_cmd ("spu", no_class, set_spu_command,
|
||||
_("Various SPU specific commands."),
|
||||
|
|
@ -2559,6 +2682,21 @@ Use \"off\" to disable stopping for new SPE threads."),
|
|||
show_spu_stop_on_load,
|
||||
&setspucmdlist, &showspucmdlist);
|
||||
|
||||
/* Toggle whether or not to automatically flush the software-managed
|
||||
cache whenever SPE execution stops. */
|
||||
add_setshow_boolean_cmd ("auto-flush-cache", class_support,
|
||||
&spu_auto_flush_cache_p, _("\
|
||||
Set whether to automatically flush the software-managed cache."),
|
||||
_("\
|
||||
Show whether to automatically flush the software-managed cache."),
|
||||
_("\
|
||||
Use \"on\" to automatically flush the software-managed cache\n\
|
||||
whenever SPE execution stops.\n\
|
||||
Use \"off\" to never automatically flush the software-managed cache."),
|
||||
NULL,
|
||||
show_spu_auto_flush_cache,
|
||||
&setspucmdlist, &showspucmdlist);
|
||||
|
||||
/* Add root prefix command for all "info spu" commands. */
|
||||
add_prefix_cmd ("spu", class_info, info_spu_command,
|
||||
_("Various SPU specific commands."),
|
||||
|
|
|
|||
Loading…
Reference in New Issue