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[blob] Make debug code always available to the compiler 

Such that we don't break debug build all the time.
This commit is contained in:
Behdad Esfahbod 2010-04-28 13:16:38 -04:00
parent ba51b25c7b
commit 444fffb1ab
1 changed files with 32 additions and 46 deletions
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40
src/hb-blob.c
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@ -36,13 +36,11 @@
#endif /* HAVE_SYS_MMAN_H */
#ifndef HB_DEBUG_BLOB
#define HB_DEBUG_BLOB HB_DEBUG
#define HB_DEBUG_BLOB HB_DEBUG+0
#endif
#if HB_DEBUG_BLOB
#include <stdio.h>
#include <errno.h>
#endif
hb_blob_t _hb_blob_nil = {
HB_REFERENCE_COUNT_INVALID, /* ref_count */
@ -181,10 +179,9 @@ hb_blob_lock (hb_blob_t *blob)
hb_mutex_lock (blob->lock);
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s (%d) -> %p\n", blob, __FUNCTION__,
blob->lock_count, blob->data);
#endif
blob->lock_count++;
@ -201,10 +198,9 @@ hb_blob_unlock (hb_blob_t *blob)
hb_mutex_lock (blob->lock);
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s (%d) -> %p\n", blob, __FUNCTION__,
blob->lock_count, blob->data);
#endif
assert (blob->lock_count > 0);
blob->lock_count--;
@ -246,35 +242,30 @@ _try_make_writable_inplace_unix_locked (hb_blob_t *blob)
#endif
if ((uintptr_t) -1L == pagesize) {
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: failed to get pagesize: %s\n", blob, __FUNCTION__, strerror (errno));
#endif
return FALSE;
}
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: pagesize is %u\n", blob, __FUNCTION__, pagesize);
#endif
mask = ~(pagesize-1);
addr = (const char *) (((uintptr_t) blob->data) & mask);
length = (const char *) (((uintptr_t) blob->data + blob->length + pagesize-1) & mask) - addr;
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: calling mprotect on [%p..%p] (%d bytes)\n",
blob, __FUNCTION__,
addr, addr+length, length);
#endif
if (-1 == mprotect ((void *) addr, length, PROT_READ | PROT_WRITE)) {
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: %s\n", blob, __FUNCTION__, strerror (errno));
#endif
return FALSE;
}
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: successfully made [%p..%p] (%d bytes) writable\n",
blob, __FUNCTION__,
addr, addr+length, length);
#endif
return TRUE;
#else
return FALSE;
@ -284,19 +275,16 @@ _try_make_writable_inplace_unix_locked (hb_blob_t *blob)
static void
_try_writable_inplace_locked (hb_blob_t *blob)
{
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: making writable\n", blob, __FUNCTION__);
#endif
if (_try_make_writable_inplace_unix_locked (blob)) {
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: making writable -> succeeded\n", blob, __FUNCTION__);
#endif
blob->mode = HB_MEMORY_MODE_WRITABLE;
} else {
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: making writable -> FAILED\n", blob, __FUNCTION__);
#endif
/* Failed to make writable inplace, mark that */
blob->mode = HB_MEMORY_MODE_READONLY;
}
@ -339,19 +327,17 @@ hb_blob_try_writable (hb_blob_t *blob)
{
char *new_data;
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s (%d) -> %p\n", blob, __FUNCTION__,
blob->lock_count, blob->data);
#endif
if (blob->lock_count)
goto done;
new_data = malloc (blob->length);
if (new_data) {
#if HB_DEBUG_BLOB
if (HB_DEBUG_BLOB)
fprintf (stderr, "%p %s: dupped successfully -> %p\n", blob, __FUNCTION__, blob->data);
#endif
memcpy (new_data, blob->data, blob->length);
_hb_blob_destroy_user_data (blob);
blob->mode = HB_MEMORY_MODE_WRITABLE;