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on lambda types we have to replace unique name with hash,

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otherwise visual studio wont show local variables in lambdas
This commit is contained in:
Nikita Smith
2025-01-17 15:28:10 -08:00
parent de2ea38f50
commit 89ff4d0de2
1 changed files with 20 additions and 12 deletions
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src/linker/lnk_debug_info.c
+20 -12
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@@ -2505,7 +2505,7 @@ THREAD_POOL_TASK_FUNC(lnk_replace_type_names_with_hashes_lenient_task)
map = &task->maps[task_id];
}
U64 hash_max_chars = hash_length;
U64 hash_max_chars = hash_length*2;
U8 temp[128];
for (U64 leaf_idx = range.min; leaf_idx < range.max; ++leaf_idx) {
@@ -2513,7 +2513,9 @@ THREAD_POOL_TASK_FUNC(lnk_replace_type_names_with_hashes_lenient_task)
if (leaf.kind == CV_LeafKind_STRUCTURE || leaf.kind == CV_LeafKind_CLASS) {
CV_UDTInfo udt_info = cv_get_udt_info(leaf.kind, leaf.data);
if (udt_info.props & CV_TypeProp_HasUniqueName && udt_info.unique_name.size > hash_max_chars) {
if ((udt_info.props & CV_TypeProp_HasUniqueName) &&
udt_info.unique_name.size > hash_max_chars &&
udt_info.name.size > hash_max_chars) {
// hash unique name
U128 name_hash;
blake3_hasher hasher; blake3_hasher_init(&hasher);
@@ -2523,27 +2525,33 @@ THREAD_POOL_TASK_FUNC(lnk_replace_type_names_with_hashes_lenient_task)
// emit hash -> unique name map
if (make_map) {
lnk_format_u128(temp, sizeof(temp), hash_length, name_hash);
str8_list_pushf(map_arena, map, "%s %.*s\n", temp, str8_varg(udt_info.unique_name));
str8_list_pushf(map_arena, map, "%s %S\n", temp, str8_varg(udt_info.unique_name));
}
// parse leaf size
CV_NumericParsed dummy;
U64 numeric_size = cv_read_numeric(leaf.data, sizeof(CV_LeafStruct), &dummy);
U64 colon_pos = str8_find_needle_reverse(udt_info.name, 0, str8_lit("<lambda_"), 0);
B32 is_lambda = colon_pos != 0;
String8 lambda_prefix = str8_lit("<lambda_");
U64 colon_pos = str8_find_needle_reverse(udt_info.name, 0, lambda_prefix, 0);
B32 is_lambda = colon_pos != 0;
if (is_lambda) {
// replace display type string with unique type name hash
udt_info.name.size = lnk_format_u128(udt_info.name.str, udt_info.name.size, hash_length, name_hash);
U64 size = lnk_format_u128(temp, sizeof(temp), hash_length, name_hash);
Assert(size < udt_info.name.size);
Assert(size < udt_info.unique_name.size);
MemoryCopy(udt_info.name.str, temp, size+1);
MemoryCopy(udt_info.name.str+size+1, temp, size+1);
udt_info.name.size = size;
udt_info.unique_name.size = size;
// update leaf header
CV_LeafHeader *header = cv_debug_t_get_leaf_header(debug_t, leaf_idx);
header->size = sizeof(CV_LeafKind) + sizeof(CV_LeafStruct) + numeric_size + udt_info.name.size + 1;
// discard unique name
CV_LeafStruct *lf = (CV_LeafStruct *)(header + 1);
lf->props &= ~CV_TypeProp_HasUniqueName;
header->size = sizeof(CV_LeafKind) +
sizeof(CV_LeafStruct) +
numeric_size +
udt_info.name.size + 1 +
udt_info.unique_name.size + 1;
} else {
// replace uniuqe type name with hash
udt_info.unique_name.str = udt_info.name.str + udt_info.name.size + 1;