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enable multiple states and fix minor memory leaks

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This commit is contained in:
grischka 2008-04-27 18:47:35 +00:00
parent f22e961f80
commit 23594b6980
1 changed files with 48 additions and 16 deletions
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64
tcc.c
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@ -390,6 +390,8 @@ static Sym *global_label_stack, *local_label_stack;
/* symbol allocator */
#define SYM_POOL_NB (8192 / sizeof(Sym))
static Sym *sym_free_first;
static void **sym_pools;
static int nb_sym_pools;
static SValue vstack[VSTACK_SIZE], *vtop;
/* some predefined types */
@ -1118,6 +1120,7 @@ void set_pages_executable(void *ptr, unsigned long length)
#ifdef MEM_DEBUG
int mem_cur_size;
int mem_max_size;
unsigned malloc_usable_size(void*);
#endif
static inline void tcc_free(void *ptr)
@ -1217,6 +1220,7 @@ static Sym *__sym_malloc(void)
int i;
sym_pool = tcc_malloc(SYM_POOL_NB * sizeof(Sym));
dynarray_add(&sym_pools, &nb_sym_pools, sym_pool);
last_sym = sym_free_first;
sym = sym_pool;
@ -1279,6 +1283,10 @@ Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags)
static void free_section(Section *s)
{
if (s->link && 0 == s->link->sh_num)
free_section(s->link);
if (s->hash && 0 == s->hash->sh_num)
s->hash->link = NULL, free_section(s->hash);
tcc_free(s->data);
tcc_free(s);
}
@ -9476,6 +9484,8 @@ static void preprocess_init(TCCState *s1)
vtop = vstack - 1;
s1->pack_stack[0] = 0;
s1->pack_stack_ptr = s1->pack_stack;
macro_ptr = NULL;
}
/* compile the C file opened in 'file'. Return non zero if errors. */
@ -9578,6 +9588,7 @@ static int tcc_compile(TCCState *s1)
gen_inline_functions();
sym_pop(&global_stack, NULL);
sym_pop(&local_stack, NULL);
return s1->nb_errors != 0 ? -1 : 0;
}
@ -9637,9 +9648,8 @@ int tcc_compile_string(TCCState *s, const char *str)
pstrcpy(bf->filename, sizeof(bf->filename), "<string>");
bf->line_num = 1;
file = bf;
ret = tcc_compile(s);
file = NULL;
tcc_free(buf);
/* currently, no need to close */
@ -10053,6 +10063,38 @@ int tcc_run(TCCState *s1, int argc, char **argv)
return (*prog_main)(argc, argv);
}
void tcc_memstats(void)
{
#ifdef MEM_DEBUG
printf("memory in use: %d\n", mem_cur_size);
#endif
}
static void tcc_cleanup(void)
{
int i, n;
if (NULL == tcc_state)
return;
tcc_state = NULL;
/* free -D defines */
free_defines(NULL);
/* free tokens */
n = tok_ident - TOK_IDENT;
for(i = 0; i < n; i++)
tcc_free(table_ident[i]);
tcc_free(table_ident);
/* free sym_pools */
dynarray_reset(&sym_pools, &nb_sym_pools);
/* string buffer */
cstr_free(&tokcstr);
/* reset symbol stack */
sym_free_first = NULL;
}
TCCState *tcc_new(void)
{
const char *p, *r;
@ -10060,6 +10102,8 @@ TCCState *tcc_new(void)
TokenSym *ts;
int i, c;
tcc_cleanup();
s = tcc_mallocz(sizeof(TCCState));
if (!s)
return NULL;
@ -10171,23 +10215,11 @@ TCCState *tcc_new(void)
void tcc_delete(TCCState *s1)
{
int i, n;
int i;
/* free -D defines */
free_defines(NULL);
/* free tokens */
n = tok_ident - TOK_IDENT;
for(i = 0; i < n; i++)
tcc_free(table_ident[i]);
tcc_free(table_ident);
tcc_cleanup();
/* free all sections */
free_section(symtab_section->hash);
free_section(s1->dynsymtab_section->hash);
free_section(s1->dynsymtab_section->link);
free_section(s1->dynsymtab_section);
for(i = 1; i < s1->nb_sections; i++)