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|
#define __cond_lock(c) ((c) ? ({ __context__(1); 1; }) : 0)
static void a(void) __attribute__((context(0,1)))
{
__context__(1);
}
static void r(void) __attribute__((context(1,0)))
{
__context__(-1);
}
extern void _ca(int fail);
#define ca(fail) __cond_lock(_ca(fail))
static void good_paired1(void)
{
a();
r();
}
static void good_paired2(void)
{
a();
r();
a();
r();
}
static void good_paired3(void)
{
a();
a();
r();
r();
}
static void good_lock1(void) __attribute__((context(0,1)))
{
a();
}
static void good_lock2(void) __attribute__((context(0,1)))
{
a();
r();
a();
}
static void good_lock3(void) __attribute__((context(0,1)))
{
a();
a();
r();
}
static void good_unlock1(void) __attribute__((context(1,0)))
{
r();
}
static void good_unlock2(void) __attribute__((context(1,0)))
{
a();
r();
r();
}
static void warn_lock1(void)
{
a();
}
static void warn_lock2(void)
{
a();
r();
a();
}
static void warn_lock3(void)
{
a();
a();
r();
}
static void warn_unlock1(void)
{
r();
}
static void warn_unlock2(void)
{
a();
r();
r();
}
extern int condition, condition2;
static int good_if1(void)
{
a();
if(condition) {
r();
return -1;
}
r();
return 0;
}
static void good_if2(void)
{
if(condition) {
a();
r();
}
}
static void good_if3(void)
{
a();
if(condition) {
a();
r();
}
r();
}
static int warn_if1(void)
{
a();
if(condition)
return -1;
r();
return 0;
}
static int warn_if2(void)
{
a();
if(condition) {
r();
return -1;
}
return 0;
}
static void good_while1(void)
{
a();
while(condition)
;
r();
}
static void good_while2(void)
{
while(condition) {
a();
r();
}
}
static void good_while3(void)
{
while(condition) {
a();
r();
if(condition2)
break;
a();
r();
}
}
static void good_while4(void)
{
a();
while(1) {
if(condition2) {
r();
break;
}
}
}
static void good_while5(void)
{
a();
while(1) {
r();
if(condition2)
break;
a();
}
}
static void warn_while1(void)
{
while(condition) {
a();
}
}
static void warn_while2(void)
{
while(condition) {
r();
}
}
static void warn_while3(void)
{
while(condition) {
a();
if(condition2)
break;
r();
}
}
static void good_goto1(void)
{
a();
goto label;
label:
r();
}
static void good_goto2(void)
{
a();
goto label;
a();
r();
label:
r();
}
static void good_goto3(void)
{
a();
if(condition)
goto label;
a();
r();
label:
r();
}
static void good_goto4(void)
{
if(condition)
goto label;
a();
r();
label:
;
}
static void good_goto5(void)
{
a();
if(condition)
goto label;
r();
return;
label:
r();
}
static void warn_goto1(void)
{
a();
goto label;
r();
label:
;
}
static void warn_goto2(void)
{
a();
goto label;
r();
label:
a();
r();
}
static void warn_goto3(void)
{
a();
if(condition)
goto label;
r();
label:
r();
}
static void good_cond_lock1(void)
{
if(ca(condition)) {
condition2 = 1; /* do stuff */
r();
}
}
static void warn_cond_lock1(void)
{
if(ca(condition))
condition2 = 1; /* do stuff */
r();
}
/*
* check-name: Check -Wcontext
*
* check-error-start
context.c:69:13: warning: context imbalance in 'warn_lock1' - wrong count at exit
context.c:74:13: warning: context imbalance in 'warn_lock2' - wrong count at exit
context.c:81:13: warning: context imbalance in 'warn_lock3' - wrong count at exit
context.c:88:13: warning: context imbalance in 'warn_unlock1' - unexpected unlock
context.c:93:13: warning: context imbalance in 'warn_unlock2' - unexpected unlock
context.c:131:12: warning: context imbalance in 'warn_if1' - wrong count at exit
context.c:140:12: warning: context imbalance in 'warn_if2' - different lock contexts for basic block
context.c:202:9: warning: context imbalance in 'warn_while1' - different lock contexts for basic block
context.c:210:17: warning: context imbalance in 'warn_while2' - unexpected unlock
context.c:216:9: warning: context imbalance in 'warn_while3' - wrong count at exit
context.c:274:13: warning: context imbalance in 'warn_goto1' - wrong count at exit
context.c:283:13: warning: context imbalance in 'warn_goto2' - wrong count at exit
context.c:300:5: warning: context imbalance in 'warn_goto3' - different lock contexts for basic block
context.c:315:5: warning: context imbalance in 'warn_cond_lock1' - different lock contexts for basic block
* check-error-end
*/
|
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