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* gdbarch.sh (overlay_update): New gdbarch function.

Browse Source 
(struct obj_section): Add forward declaration.
	* gdbarch.c, gdbarch.h: Regenerate.

	* symfile.c (simple_overlay_update): Make global.
	(target_overlay_update): Remove variable.
	(overlay_is_mapped): Call gdbarch_overlay_update instead of
	target_overlay_update.
	(overlay_load_command): Likewise.
	* symfile.h (struct obj_section): Add forward declaration.
	(simple_overlay_update): Add prototype.

	* m32r-tdep.c (m32r_gdbarch_init): Install simple_overlay_update.
This commit is contained in:
Ulrich Weigand 2007-05-11 19:57:17 +00:00
parent 06d3b283b1
commit 1c7724581e
7 changed files with 76 additions and 11 deletions
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16
gdb/ChangeLog
View File

@ -1,3 +1,19 @@
2007-05-11 Ulrich Weigand <uweigand@de.ibm.com>
* gdbarch.sh (overlay_update): New gdbarch function.
(struct obj_section): Add forward declaration.
* gdbarch.c, gdbarch.h: Regenerate.
* symfile.c (simple_overlay_update): Make global.
(target_overlay_update): Remove variable.
(overlay_is_mapped): Call gdbarch_overlay_update instead of
target_overlay_update.
(overlay_load_command): Likewise.
* symfile.h (struct obj_section): Add forward declaration.
(simple_overlay_update): Add prototype.
* m32r-tdep.c (m32r_gdbarch_init): Install simple_overlay_update.
2007-05-11 Ulrich Weigand <uweigand@de.ibm.com>
* observer.sh: Add "struct objfile" forward declaration.

33
gdb/gdbarch.c
View File

@ -236,6 +236,7 @@ struct gdbarch
int vtable_function_descriptors;
int vbit_in_delta;
gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint;
gdbarch_overlay_update_ftype *overlay_update;
};
@ -362,6 +363,7 @@ struct gdbarch startup_gdbarch =
0, /* vtable_function_descriptors */
0, /* vbit_in_delta */
0, /* skip_permanent_breakpoint */
0, /* overlay_update */
/* startup_gdbarch() */
};
@ -614,6 +616,7 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
/* Skip verify of vtable_function_descriptors, invalid_p == 0 */
/* Skip verify of vbit_in_delta, invalid_p == 0 */
/* Skip verify of skip_permanent_breakpoint, has predicate */
/* Skip verify of overlay_update, has predicate */
buf = ui_file_xstrdup (log, &dummy);
make_cleanup (xfree, buf);
if (strlen (buf) > 0)
@ -1224,6 +1227,12 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
fprintf_unfiltered (file,
"gdbarch_dump: osabi = %s\n",
paddr_d (current_gdbarch->osabi));
fprintf_unfiltered (file,
"gdbarch_dump: gdbarch_overlay_update_p() = %d\n",
gdbarch_overlay_update_p (current_gdbarch));
fprintf_unfiltered (file,
"gdbarch_dump: overlay_update = <0x%lx>\n",
(long) current_gdbarch->overlay_update);
#ifdef PC_REGNUM
fprintf_unfiltered (file,
"gdbarch_dump: PC_REGNUM # %s\n",
@ -3605,6 +3614,30 @@ set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch,
gdbarch->skip_permanent_breakpoint = skip_permanent_breakpoint;
}
int
gdbarch_overlay_update_p (struct gdbarch *gdbarch)
{
gdb_assert (gdbarch != NULL);
return gdbarch->overlay_update != NULL;
}
void
gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect)
{
gdb_assert (gdbarch != NULL);
gdb_assert (gdbarch->overlay_update != NULL);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_overlay_update called\n");
gdbarch->overlay_update (osect);
}
void
set_gdbarch_overlay_update (struct gdbarch *gdbarch,
gdbarch_overlay_update_ftype overlay_update)
{
gdbarch->overlay_update = overlay_update;
}
/* Keep a registry of per-architecture data-pointers required by GDB
modules. */

9
gdb/gdbarch.h
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@ -42,6 +42,7 @@ struct ui_file;
struct frame_info;
struct value;
struct objfile;
struct obj_section;
struct minimal_symbol;
struct regcache;
struct reggroup;
@ -1345,6 +1346,14 @@ typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcach
extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
/* Refresh overlay mapped state for section OSECT. */
extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);

4
gdb/gdbarch.sh
View File

@ -680,6 +680,9 @@ v::int:vbit_in_delta:::0:0::0
# Advance PC to next instruction in order to skip a permanent breakpoint.
F::void:skip_permanent_breakpoint:struct regcache *regcache:regcache
# Refresh overlay mapped state for section OSECT.
F::void:overlay_update:struct obj_section *osect:osect
EOF
}
@ -782,6 +785,7 @@ struct ui_file;
struct frame_info;
struct value;
struct objfile;
struct obj_section;
struct minimal_symbol;
struct regcache;
struct reggroup;

3
gdb/m32r-tdep.c
View File

@ -963,6 +963,9 @@ m32r_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Hook in the default unwinders. */
frame_unwind_append_sniffer (gdbarch, m32r_frame_sniffer);
/* Support simple overlay manager. */
set_gdbarch_overlay_update (gdbarch, simple_overlay_update);
return gdbarch;
}

18
gdb/symfile.c
View File

@ -3042,10 +3042,6 @@ init_psymbol_list (struct objfile *objfile, int total_symbols)
enum overlay_debugging_state overlay_debugging = ovly_off;
int overlay_cache_invalid = 0; /* True if need to refresh mapped state */
/* Target vector for refreshing overlay mapped state */
static void simple_overlay_update (struct obj_section *);
void (*target_overlay_update) (struct obj_section *) = simple_overlay_update;
/* Function: section_is_overlay (SECTION)
Returns true if SECTION has VMA not equal to LMA, ie.
SECTION is loaded at an address different from where it will "run". */
@ -3099,9 +3095,9 @@ overlay_is_mapped (struct obj_section *osect)
case ovly_off:
return 0; /* overlay debugging off */
case ovly_auto: /* overlay debugging automatic */
/* Unles there is a target_overlay_update function,
/* Unles there is a gdbarch_overlay_update function,
there's really nothing useful to do here (can't really go auto) */
if (target_overlay_update)
if (gdbarch_overlay_update_p (current_gdbarch))
{
if (overlay_cache_invalid)
{
@ -3109,7 +3105,7 @@ overlay_is_mapped (struct obj_section *osect)
overlay_cache_invalid = 0;
}
if (osect->ovly_mapped == -1)
(*target_overlay_update) (osect);
gdbarch_overlay_update (current_gdbarch, osect);
}
/* fall thru to manual case */
case ovly_on: /* overlay debugging manual */
@ -3462,8 +3458,8 @@ overlay_off_command (char *args, int from_tty)
static void
overlay_load_command (char *args, int from_tty)
{
if (target_overlay_update)
(*target_overlay_update) (NULL);
if (gdbarch_overlay_update_p (current_gdbarch))
gdbarch_overlay_update (current_gdbarch, NULL);
else
error (_("This target does not know how to read its overlay state."));
}
@ -3487,7 +3483,7 @@ overlay_command (char *args, int from_tty)
This is GDB's default target overlay layer. It works with the
minimal overlay manager supplied as an example by Cygnus. The
entry point is via a function pointer "target_overlay_update",
entry point is via a function pointer "gdbarch_overlay_update",
so targets that use a different runtime overlay manager can
substitute their own overlay_update function and take over the
function pointer.
@ -3690,7 +3686,7 @@ simple_overlay_update_1 (struct obj_section *osect)
If a cached entry can't be found or the cache isn't valid, then
re-read the entire cache, and go ahead and update all sections. */
static void
void
simple_overlay_update (struct obj_section *osect)
{
struct objfile *objfile;

4
gdb/symfile.h
View File

@ -29,6 +29,7 @@
/* Opaque declarations. */
struct section_table;
struct objfile;
struct obj_section;
struct obstack;
struct block;
@ -306,6 +307,9 @@ extern void symbol_file_add_main (char *args, int from_tty);
/* Clear GDB symbol tables. */
extern void symbol_file_clear (int from_tty);
/* Default overlay update function. */
extern void simple_overlay_update (struct obj_section *);
extern bfd_byte *symfile_relocate_debug_section (bfd *abfd, asection *sectp,
bfd_byte * buf);