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[CODIFF]: Handle new functions 

[acme@newtoy pahole]$ codiff build/ctracer.before build/ctracer
/home/acme/pahole/ctracer.c:
  emit_module_preamble | -188
 1 function changed, 188 bytes removed

/home/acme/pahole/ctracer.c:
  emit_struct_defs    |  +74
  emit_class_fwd_decl |  +58
 2 functions changed, 132 bytes added

build/ctracer:
 3 functions changed, 132 bytes added, 188 bytes removed
[acme@newtoy pahole]$

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-12-24 13:03:33 -02:00
parent 7483c767f4
commit 349463c0ca
1 changed files with 49 additions and 0 deletions
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49
codiff.c
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@ -82,6 +82,13 @@ static void diff_function(const struct cu *new_cu, struct function *function)
else
function->cu->function_bytes_removed += -function->diff;
}
} else {
const size_t len = strlen(function->name);
if (len > function->cu->max_len_changed_item)
function->cu->max_len_changed_item = len;
function->diff = -function__size(function);
++function->cu->nr_functions_changed;
function->cu->function_bytes_removed += -function->diff;
}
}
@ -203,6 +210,42 @@ static int diff_function_iterator(struct function *function, void *new_cu)
return 0;
}
static int find_new_functions_iterator(struct function *function, void *old_cu)
{
struct function *old_function;
assert(function->tag.tag == DW_TAG_subprogram);
if (function->inlined)
return 0;
old_function = cu__find_function_by_name(old_cu, function->name);
if (old_function == NULL) {
const size_t len = strlen(function->name);
if (len > function->cu->max_len_changed_item)
function->cu->max_len_changed_item = len;
function->diff = function__size(function);
++function->cu->nr_functions_changed;
function->cu->function_bytes_added += function->diff;
}
return 0;
}
static int cu_find_new_classes_iterator(struct cu *new_cu, void *old_cus)
{
struct cu *old_cu = cus__find_cu_by_name(old_cus, new_cu->name);
if (old_cu != NULL) {
//cu__for_each_class(new_cu, diff_class_iterator,
// old_cu, NULL);
cu__for_each_function(new_cu, find_new_functions_iterator,
old_cu, NULL);
}
return 0;
}
static int cu_diff_iterator(struct cu *cu, void *new_cus)
{
struct cu *new_cu = cus__find_cu_by_name(new_cus, cu->name);
@ -385,6 +428,10 @@ static int cu_show_diffs_iterator(struct cu *cu, void *cookie)
return 0;
}
static int cu_show_new_classes_iterator(struct cu *cu, void *cookie)
{
}
static void print_total_function_diff(const char *filename)
{
printf("\n%s:\n", filename);
@ -454,7 +501,9 @@ int main(int argc, char *argv[])
}
cus__for_each_cu(old_cus, cu_diff_iterator, new_cus, NULL);
cus__for_each_cu(new_cus, cu_find_new_classes_iterator, old_cus, NULL);
cus__for_each_cu(old_cus, cu_show_diffs_iterator, NULL, NULL);
cus__for_each_cu(new_cus, cu_show_diffs_iterator, NULL, NULL);
if (total_cus_changed > 1) {
if (show_function_diffs)