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update link symbol set logic to replace import address symbols with jump

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thunk symbols
This commit is contained in:
Nikita Smith
2025-09-16 10:31:01 -07:00
committed by Ryan Fleury
parent c7c86cd360
commit c47b35f635
1 changed files with 12 additions and 3 deletions
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src/linker/lnk_lib.c
+11 -2
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@@ -228,13 +228,22 @@ lnk_lib_set_link_symbol(LNK_Lib *lib, U32 member_idx, LNK_Symbol *link_symbol)
{ {
local_persist LNK_Symbol null_symbol; local_persist LNK_Symbol null_symbol;
B32 is_first_set;
LNK_Symbol *slot = ins_atomic_ptr_eval_assign(&lib->was_member_linked[member_idx], &null_symbol); LNK_Symbol *slot = ins_atomic_ptr_eval_assign(&lib->was_member_linked[member_idx], &null_symbol);
B32 is_first_set = (slot == 0);
for (;;) { for (;;) {
is_first_set = (slot == 0);
// update slot symbol if it is empty or link symbol comes before symbol in the slot // update slot symbol if it is empty or link symbol comes before symbol in the slot
if (slot && slot != &null_symbol) { if (slot && slot != &null_symbol) {
if (lnk_symbol_is_before(slot, link_symbol)) { if (!str8_starts_with(link_symbol->name, str8_lit("__imp_")) && str8_starts_with(slot->name, str8_lit("__imp_"))) {
// replace import address symbol with jump thunk symbol
slot = link_symbol;
is_first_set = 1;
} else if (str8_starts_with(link_symbol->name, str8_lit("__imp_")) && !str8_starts_with(slot->name, str8_lit("__imp_"))) {
// no need to replace
} else if (lnk_symbol_is_before(slot, link_symbol)) {
slot = link_symbol; slot = link_symbol;
} }
} else { } else {