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libsysprof-analyze: fix calculation of number of counters

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This commit is contained in:
Christian Hergert
2023-06-27 13:54:04 -07:00
parent d7584d1d86
commit e15050b568
1 changed files with 23 additions and 1 deletions
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24
src/libsysprof-analyze/sysprof-document-ctrset.c
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@ -49,12 +49,34 @@ guint
sysprof_document_ctrset_get_n_values (SysprofDocumentCtrset *self) sysprof_document_ctrset_get_n_values (SysprofDocumentCtrset *self)
{ {
const SysprofCaptureCounterSet *ctrset; const SysprofCaptureCounterSet *ctrset;
gconstpointer endptr;
guint n_groups;
guint n_values = 0;
g_return_val_if_fail (SYSPROF_IS_DOCUMENT_CTRSET (self), 0); g_return_val_if_fail (SYSPROF_IS_DOCUMENT_CTRSET (self), 0);
endptr = SYSPROF_DOCUMENT_FRAME_ENDPTR (self);
ctrset = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureCounterSet); ctrset = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureCounterSet);
return SYSPROF_DOCUMENT_FRAME_UINT16 (self, ctrset->n_values); n_groups = SYSPROF_DOCUMENT_FRAME_UINT16 (self, ctrset->n_values);
for (guint i = 0; i < n_groups; i++)
{
const SysprofCaptureCounterValues *values = &ctrset->values[i];
/* Don't allow overflowing the frame zone */
if ((gconstpointer)&values[1] > endptr)
break;
for (guint j = 0; j < G_N_ELEMENTS (values->ids); j++)
{
if (values->ids[j] == 0)
break;
n_values++;
}
}
return n_values;
} }
/** /**