void vt_memhook_init()
{
uint32_t fid;
uint32_t gid;
#if (defined(VT_MT) || defined(VT_HYB) || defined(VT_JAVA))
vt_error_msg("Memory tracing by GNU C malloc-hooks for threaded application "
"not yet supported");
#endif /* VT_MT || VT_HYB || VT_JAVA */
if( vt_memhook_is_initialized ) return;
vt_malloc_hook_org = __malloc_hook;
vt_realloc_hook_org = __realloc_hook;
vt_free_hook_org = __free_hook;
/* define source */
fid = vt_def_scl_file(VT_CURRENT_THREAD, "MEM");
/* define regions */
memhook_regid[MEMHOOK_REG_MALLOC] =
vt_def_region(VT_CURRENT_THREAD, "malloc", fid, VT_NO_LNO, VT_NO_LNO, NULL,
VT_MEMORY);
memhook_regid[MEMHOOK_REG_REALLOC] =
vt_def_region(VT_CURRENT_THREAD, "realloc", fid, VT_NO_LNO, VT_NO_LNO, NULL,
VT_MEMORY);
memhook_regid[MEMHOOK_REG_FREE] =
vt_def_region(VT_CURRENT_THREAD, "free", fid, VT_NO_LNO, VT_NO_LNO, NULL,
VT_MEMORY);
/* define markers, if necessary */
if( (memalloc_marker = vt_env_memtrace_marker()) )
{
memalloc_mid[MEMHOOK_MARK_ALLOC] =
vt_def_marker(VT_CURRENT_THREAD, "Memory Allocation", VT_MARKER_HINT);
memalloc_mid[MEMHOOK_MARK_FREE] =
vt_def_marker(VT_CURRENT_THREAD, "Memory Deallocation", VT_MARKER_HINT);
}
/* define counter group */
gid = vt_def_counter_group(VT_CURRENT_THREAD, "Memory");
/* define counter */
memalloc_cid =
vt_def_counter(VT_CURRENT_THREAD, "MEM_ALLOC",
VT_CNTR_ABS | VT_CNTR_NEXT,
gid, "Bytes");
vt_memhook_is_initialized = 1;
}
void vt_mallocwrap_init()
{
/* define memory related counter group */
mallocwrap_counter_group_id =
vt_def_counter_group(VT_CURRENT_THREAD, "Memory");
/* define memory allocation counter */
mallocwrap_counter_id =
vt_def_counter(VT_CURRENT_THREAD, "Memory Allocation", "Bytes",
VT_CNTR_ABS | VT_CNTR_NEXT, mallocwrap_counter_group_id, 0);
/* define memory (de)allocation markers, if desired
(env. VT_MEMTRACE_MARKER) */
if( (mallocwrap_write_markers = vt_env_memtrace_marker()) )
{
mallocwrap_marker_alloc_id =
vt_def_marker(VT_CURRENT_THREAD, "Memory Allocation", VT_MARKER_HINT);
mallocwrap_marker_free_id =
vt_def_marker(VT_CURRENT_THREAD, "Memory Deallocation", VT_MARKER_HINT);
}
}
