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Theoretically fancier reference count history printer (needs more work)

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Ted Lemon 2001-01-25 08:27:20 +00:00
parent e0de25c53b
commit 0ae2319345
1 changed files with 65 additions and 10 deletions
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75
omapip/alloc.c
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@ -55,6 +55,11 @@ unsigned long dmalloc_cutoff_generation;
#if defined (DEBUG_RC_HISTORY) #if defined (DEBUG_RC_HISTORY)
struct rc_history_entry rc_history [RC_HISTORY_MAX]; struct rc_history_entry rc_history [RC_HISTORY_MAX];
int rc_history_index; int rc_history_index;
int rc_history_count;
#endif
#if defined (DEBUG_RC_HISTORY)
static void print_rc_hist_entry (int);
#endif #endif
VOIDPTR dmalloc (size, file, line) VOIDPTR dmalloc (size, file, line)
@ -119,6 +124,7 @@ VOIDPTR dmalloc (size, file, line)
} }
#endif #endif
#endif #endif
rc_register (file, line, 0, foo + DMDOFFSET, 1);
return bar; return bar;
} }
@ -179,6 +185,7 @@ void dfree (ptr, file, line)
ptr = bar; ptr = bar;
} }
#endif #endif
rc_register (file, line, 0, (unsigned char *)ptr + DMDOFFSET, 0);
free (ptr); free (ptr);
} }
@ -280,9 +287,41 @@ void dmalloc_dump_outstanding ()
#if defined (DEBUG_MEMORY_LEAKAGE) #if defined (DEBUG_MEMORY_LEAKAGE)
/* Don't count data that's actually on a free list /* Don't count data that's actually on a free list
somewhere. */ somewhere. */
if (dp -> file) if (dp -> file) {
log_info (" %s(%d): %d", #if defined (DEBUG_RC_HISTORY)
dp -> file, dp -> line, dp -> size); /* If we have the info, see if this is actually
new garbage. */
if (rc_history_count < RC_HISTORY_MAX) {
int i, printit = 0, inhistory = 0, prefcnt = 0;
i = rc_history_index - rc_history_count;
if (i < 0)
i += RC_HISTORY_MAX;
do {
if (rc_history [i].addr == dp + 1) {
if (rc_history [i].refcnt == 1 &&
prefcnt == 0 && !printit) {
printit = 1;
inhistory = 1;
log_info (" %s(%d): %d",
dp -> file,
dp -> line,
dp -> size);
}
prefcnt = rc_history [i].refcnt;
if (printit)
print_rc_hist_entry (i);
}
if (++i == RC_HISTORY_MAX)
i = 0;
} while (i != rc_history_index);
if (!inhistory)
log_info (" %s(%d): %d", dp -> file,
dp -> line, dp -> size);
} else
#endif
log_info (" %s(%d): %d",
dp -> file, dp -> line, dp -> size);
}
#endif #endif
} }
if (dmalloc_list) if (dmalloc_list)
@ -291,21 +330,37 @@ void dmalloc_dump_outstanding ()
#endif /* DEBUG_MEMORY_LEAKAGE || DEBUG_MALLOC_POOL */ #endif /* DEBUG_MEMORY_LEAKAGE || DEBUG_MALLOC_POOL */
#if defined (DEBUG_RC_HISTORY) #if defined (DEBUG_RC_HISTORY)
static void print_rc_hist_entry (int i)
{
log_info (" referenced by %s(%d)[%lx]: addr = %lx refcnt = %x",
rc_history [i].file, rc_history [i].line,
(unsigned long)rc_history [i].reference,
(unsigned long)rc_history [i].addr,
rc_history [i].refcnt);
}
void dump_rc_history () void dump_rc_history ()
{ {
int i; int i;
i = rc_history_index; i = rc_history_index;
do { if (!rc_history [i].file)
log_info (" referenced by %s(%d)[%lx]: addr = %lx refcnt = %x", i = 0;
rc_history [i].file, rc_history [i].line, else if (rc_history_count < RC_HISTORY_MAX) {
(unsigned long)rc_history [i].reference, i -= rc_history_count;
(unsigned long)rc_history [i].addr, if (i < 0)
rc_history [i].refcnt); i += RC_HISTORY_MAX;
}
rc_history_count = 0;
while (rc_history [i].file) {
print_rc_hist_entry (i);
++i; ++i;
if (i == RC_HISTORY_MAX) if (i == RC_HISTORY_MAX)
i = 0; i = 0;
} while (i != rc_history_index && rc_history [i].file); if (i == rc_history_index)
break;
}
} }
#endif #endif