mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-12-27 11:06:41 -05:00
Code Issues Packages Projects Releases Wiki Activity

genksyms: use generic macros for hash table implementation

Browse Source 
Use macros provided by hashtable.h

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada
2025-01-03 16:30:42 +09:00
parent 2480f53f21
commit 2759bd908f
2 changed files with 15 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
scripts/genksyms/genksyms.c
View File

@@ -18,12 +18,12 @@
#include <stdarg.h>
#include <getopt.h>
#include <hashtable.h>
#include "genksyms.h"
/*----------------------------------------------------------------------*/
#define HASH_BUCKETS 4096
static struct symbol *symtab[HASH_BUCKETS];
static HASHTABLE_DEFINE(symbol_hashtable, 1U << 12);
static FILE *debugfile;
int cur_line = 1;
@@ -151,14 +151,14 @@ static enum symbol_type map_to_ns(enum symbol_type t)
struct symbol *find_symbol(const char *name, enum symbol_type ns, int exact)
{
unsigned long h = crc32(name) % HASH_BUCKETS;
struct symbol *sym;
for (sym = symtab[h]; sym; sym = sym->hash_next)
hash_for_each_possible(symbol_hashtable, sym, hnode, crc32(name)) {
if (map_to_ns(sym->type) == map_to_ns(ns) &&
strcmp(name, sym->name) == 0 &&
sym->is_declared)
break;
}
if (exact && sym && sym->type != ns)
return NULL;
@@ -224,8 +224,8 @@ static struct symbol *__add_symbol(const char *name, enum symbol_type type,
return NULL;
}
h = crc32(name) % HASH_BUCKETS;
for (sym = symtab[h]; sym; sym = sym->hash_next) {
h = crc32(name);
hash_for_each_possible(symbol_hashtable, sym, hnode, h) {
if (map_to_ns(sym->type) != map_to_ns(type) ||
strcmp(name, sym->name))
continue;
@@ -257,14 +257,7 @@ static struct symbol *__add_symbol(const char *name, enum symbol_type type,
}
if (sym) {
struct symbol **psym;
for (psym = &symtab[h]; *psym; psym = &(*psym)->hash_next) {
if (*psym == sym) {
*psym = sym->hash_next;
break;
}
}
hash_del(&sym->hnode);
free_list(sym->defn, NULL);
free(sym->name);
@@ -280,8 +273,7 @@ static struct symbol *__add_symbol(const char *name, enum symbol_type type,
sym->visited = NULL;
sym->is_extern = is_extern;
sym->hash_next = symtab[h];
symtab[h] = sym;
hash_add(symbol_hashtable, &sym->hnode, h);
sym->is_declared = !is_reference;
sym->status = status;
@@ -832,9 +824,9 @@ int main(int argc, char **argv)
}
if (flag_debug) {
fprintf(debugfile, "Hash table occupancy %d/%d = %g\n",
nsyms, HASH_BUCKETS,
(double)nsyms / (double)HASH_BUCKETS);
fprintf(debugfile, "Hash table occupancy %d/%zd = %g\n",
nsyms, HASH_SIZE(symbol_hashtable),
(double)nsyms / HASH_SIZE(symbol_hashtable));
}
if (dumpfile)

4
scripts/genksyms/genksyms.h
View File

@@ -14,6 +14,8 @@
#include <stdio.h>
#include <list_types.h>
enum symbol_type {
SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION,
SYM_ENUM_CONST
@@ -31,7 +33,7 @@ struct string_list {
};
struct symbol {
struct symbol *hash_next;
struct hlist_node hnode;
char *name;
enum symbol_type type;
struct string_list *defn;