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infra: improve tatomic debugging

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This commit is contained in:
Thomas Schoebel-Theuer 2013-04-15 15:51:15 +02:00
parent 7e2be30c57
commit e106d77721
1 changed files with 4 additions and 2 deletions
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6
kernel/brick_atomic.h
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@ -14,7 +14,7 @@
#undef ATOMIC_DEBUGGING
#endif
#define ATOMIC_MAXTRACE 64
#define ATOMIC_MAXTRACE 32
/* Trivial wrapper to force type checking.
*/
@ -26,6 +26,7 @@ typedef struct atomic_trace {
#ifdef ATOMIC_DEBUGGING
atomic_t at_count;
short at_lines[ATOMIC_MAXTRACE];
pid_t at_pids[ATOMIC_MAXTRACE];
const char *at_sources[ATOMIC_MAXTRACE];
#endif
} atomic_trace_t;
@ -37,6 +38,7 @@ typedef struct atomic_trace {
int _index = atomic_add_return(1, &(_at)->at_count) - 1; \
if (likely(_index >= 0 && _index < ATOMIC_MAXTRACE)) { \
(_at)->at_lines[_index] = __LINE__; \
(_at)->at_pids[_index] = current->pid; \
(_at)->at_sources[_index] = __BASE_FILE__; \
} \
_cmd; \
@ -50,7 +52,7 @@ typedef struct atomic_trace {
if (unlikely(__max > ATOMIC_MAXTRACE)) \
__max = ATOMIC_MAXTRACE; \
for (__i = 0; __i < __max; __i++) { \
_MSG("%2d %s:%d\n", __i, (_at)->at_sources[__i], (_at)->at_lines[__i]); \
_MSG("%2d pid=%d %s:%d\n", __i, (_at)->at_pids[__i], (_at)->at_sources[__i], (_at)->at_lines[__i]); \
} \
})