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VLA leaks vstack. added warning to detect future leaks

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This commit is contained in:
Joe Soroka 2011-04-08 00:41:55 -07:00
parent c94f80502e
commit 6eb97c70b7
1 changed files with 4 additions and 0 deletions
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4
libtcc.c
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@ -689,6 +689,7 @@ ST_FUNC int tcc_open(TCCState *s1, const char *filename)
static int tcc_compile(TCCState *s1)
{
Sym *define_start;
SValue *pvtop;
char buf[512];
volatile int section_sym;
@ -758,6 +759,7 @@ static int tcc_compile(TCCState *s1)
define_start = define_stack;
nocode_wanted = 1;
pvtop = vtop;
if (setjmp(s1->error_jmp_buf) == 0) {
s1->nb_errors = 0;
@ -787,6 +789,8 @@ static int tcc_compile(TCCState *s1)
sym_pop(&global_stack, NULL);
sym_pop(&local_stack, NULL);
if (pvtop != vtop)
warning("internal compiler error: vstack leak? (%d)", vtop - pvtop);
return s1->nb_errors != 0 ? -1 : 0;
}