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* bcache.c (bcache_data): Call deprecated_bcache_added function.

Browse Source 
(deprecated_bcache_added): New function name. Body of function
	bcache_data is used here with the addition of 'added' argument.
	* bcache.h (deprecated_bcache_added): New function.
	* symfile.c (add_psymbol_to_bcache): New helper function, takes part of
	work from add_psymbol_to_list - initialises partial symbol and stashes
	it in objfile's cache.
	(append_psymbol_to_list): New helper function, takes other part of
	work from add_psymbol_to_list - adds partial symbol to the given list.
	(add_psymbol_to_list): Call helper functions instead of doing work
	here. If adding to global list, do not duplicate partial symbols in the
	partial symtab.
This commit is contained in:
Aleksandar Ristovski 2008-06-05 19:21:55 +00:00
parent 8a34ac3f58
commit 2e618c13af
4 changed files with 122 additions and 45 deletions
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15
gdb/ChangeLog
View File

@ -1,3 +1,18 @@
2008-06-05 Aleksandar Ristovski <aristovski@qnx.com>
* bcache.c (bcache_data): Call deprecated_bcache_added function.
(deprecated_bcache_added): New function name. Body of function
bcache_data is used here with the addition of 'added' argument.
* bcache.h (deprecated_bcache_added): New function.
* symfile.c (add_psymbol_to_bcache): New helper function, takes part of
work from add_psymbol_to_list - initialises partial symbol and stashes
it in objfile's cache.
(append_psymbol_to_list): New helper function, takes other part of
work from add_psymbol_to_list - adds partial symbol to the given list.
(add_psymbol_to_list): Call helper functions instead of doing work
here. If adding to global list, do not duplicate partial symbols in the
partial symtab.
2008-06-05 Aleksandar Ristovski <aristovski@qnx.com>
* breakpoint.c (print_exception_catchpoint): Put 'exception' back to

44
gdb/bcache.c
View File

@ -196,12 +196,41 @@ expand_hash_table (struct bcache *bcache)
either case, return a pointer to BCACHE's copy of that string. */
static void *
bcache_data (const void *addr, int length, struct bcache *bcache)
{
return deprecated_bcache_added (addr, length, bcache, NULL);
}
void *
deprecated_bcache (const void *addr, int length, struct bcache *bcache)
{
return bcache_data (addr, length, bcache);
}
const void *
bcache (const void *addr, int length, struct bcache *bcache)
{
return bcache_data (addr, length, bcache);
}
/* Find a copy of the LENGTH bytes at ADDR in BCACHE. If BCACHE has
never seen those bytes before, add a copy of them to BCACHE. In
either case, return a pointer to BCACHE's copy of that string. If
optional ADDED is not NULL, return 1 in case of new entry or 0 if
returning an old entry. */
void *
deprecated_bcache_added (const void *addr, int length, struct bcache *bcache,
int *added)
{
unsigned long full_hash;
unsigned short half_hash;
int hash_index;
struct bstring *s;
if (added)
*added = 0;
/* If our average chain length is too high, expand the hash table. */
if (bcache->unique_count >= bcache->num_buckets * CHAIN_LENGTH_THRESHOLD)
expand_hash_table (bcache);
@ -242,21 +271,12 @@ bcache_data (const void *addr, int length, struct bcache *bcache)
bcache->unique_size += length;
bcache->structure_size += BSTRING_SIZE (length);
if (added)
*added = 1;
return &new->d.data;
}
}
void *
deprecated_bcache (const void *addr, int length, struct bcache *bcache)
{
return bcache_data (addr, length, bcache);
}
const void *
bcache (const void *addr, int length, struct bcache *bcache)
{
return bcache_data (addr, length, bcache);
}
/* Allocating and freeing bcaches. */

2
gdb/bcache.h
View File

@ -150,6 +150,8 @@ extern void *deprecated_bcache (const void *addr, int length,
extern const void *bcache (const void *addr, int length,
struct bcache *bcache);
extern void *deprecated_bcache_added (const void *addr, int length,
struct bcache *bcache, int *added);
/* Free all the storage used by BCACHE. */
extern void bcache_xfree (struct bcache *bcache);

106
gdb/symfile.c
View File

@ -3082,6 +3082,68 @@ start_psymtab_common (struct objfile *objfile,
return (psymtab);
}
/* Helper function, initialises partial symbol structure and stashes
it into objfile's bcache. Note that our caching mechanism will
use all fields of struct partial_symbol to determine hash value of the
structure. In other words, having two symbols with the same name but
different domain (or address) is possible and correct. */
static struct partial_symbol *
add_psymbol_to_bcache (char *name, int namelength, domain_enum domain,
enum address_class class,
long val, /* Value as a long */
CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
enum language language, struct objfile *objfile,
int *added)
{
char *buf = name;
/* psymbol is static so that there will be no uninitialized gaps in the
structure which might contain random data, causing cache misses in
bcache. */
static struct partial_symbol psymbol;
if (name[namelength] != '\0')
{
buf = alloca (namelength + 1);
/* Create local copy of the partial symbol */
memcpy (buf, name, namelength);
buf[namelength] = '\0';
}
/* val and coreaddr are mutually exclusive, one of them *will* be zero */
if (val != 0)
{
SYMBOL_VALUE (&psymbol) = val;
}
else
{
SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr;
}
SYMBOL_SECTION (&psymbol) = 0;
SYMBOL_LANGUAGE (&psymbol) = language;
PSYMBOL_DOMAIN (&psymbol) = domain;
PSYMBOL_CLASS (&psymbol) = class;
SYMBOL_SET_NAMES (&psymbol, buf, namelength, objfile);
/* Stash the partial symbol away in the cache */
return deprecated_bcache_added (&psymbol, sizeof (struct partial_symbol),
objfile->psymbol_cache, added);
}
/* Helper function, adds partial symbol to the given partial symbol
list. */
static void
append_psymbol_to_list (struct psymbol_allocation_list *list,
struct partial_symbol *psym,
struct objfile *objfile)
{
if (list->next >= list->list + list->size)
extend_psymbol_list (list, objfile);
*list->next++ = psym;
OBJSTAT (objfile, n_psyms++);
}
/* Add a symbol with a long value to a psymtab.
Since one arg is a struct, we pass in a ptr and deref it (sigh).
Return the partial symbol that has been added. */
@ -3100,48 +3162,26 @@ start_psymtab_common (struct objfile *objfile,
const struct partial_symbol *
add_psymbol_to_list (char *name, int namelength, domain_enum domain,
enum address_class class,
struct psymbol_allocation_list *list, long val, /* Value as a long */
struct psymbol_allocation_list *list,
long val, /* Value as a long */
CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
enum language language, struct objfile *objfile)
{
struct partial_symbol *psym;
char *buf = alloca (namelength + 1);
/* psymbol is static so that there will be no uninitialized gaps in the
structure which might contain random data, causing cache misses in
bcache. */
static struct partial_symbol psymbol;
/* Create local copy of the partial symbol */
memcpy (buf, name, namelength);
buf[namelength] = '\0';
/* val and coreaddr are mutually exclusive, one of them *will* be zero */
if (val != 0)
{
SYMBOL_VALUE (&psymbol) = val;
}
else
{
SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr;
}
SYMBOL_SECTION (&psymbol) = 0;
SYMBOL_LANGUAGE (&psymbol) = language;
PSYMBOL_DOMAIN (&psymbol) = domain;
PSYMBOL_CLASS (&psymbol) = class;
SYMBOL_SET_NAMES (&psymbol, buf, namelength, objfile);
int added;
/* Stash the partial symbol away in the cache */
psym = deprecated_bcache (&psymbol, sizeof (struct partial_symbol),
objfile->psymbol_cache);
psym = add_psymbol_to_bcache (name, namelength, domain, class,
val, coreaddr, language, objfile, &added);
/* Do not duplicate global partial symbols. */
if (list == &objfile->global_psymbols
&& !added)
return psym;
/* Save pointer to partial symbol in psymtab, growing symtab if needed. */
if (list->next >= list->list + list->size)
{
extend_psymbol_list (list, objfile);
}
*list->next++ = psym;
OBJSTAT (objfile, n_psyms++);
append_psymbol_to_list (list, psym, objfile);
return psym;
}