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assign layout offsets and sizes to merged sections

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This commit is contained in:
Nikita Smith
2025-05-16 13:33:09 -07:00
committed by Ryan Fleury
parent f75cdd23d7
commit 03e4958190
4 changed files with 95 additions and 32 deletions
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src/linker/lnk_section_table.c
+44 -4
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@@ -91,6 +91,17 @@ lnk_get_first_section_contrib(LNK_Section *sect)
return 0;
}
internal LNK_SectionContrib *
lnk_get_last_section_contrib(LNK_Section *sect)
{
if (sect->contribs.chunk_count > 0) {
if (sect->contribs.last->count > 0) {
return sect->contribs.last->v[0];
}
}
return 0;
}
internal LNK_SectionTable *
lnk_section_table_alloc(void)
{
@@ -148,7 +159,7 @@ lnk_section_table_push(LNK_SectionTable *sectab, String8 name, COFF_SectionFlags
return sect;
}
internal void
internal LNK_SectionNode *
lnk_section_table_remove(LNK_SectionTable *sectab, String8 name)
{
ProfBeginFunction();
@@ -190,6 +201,7 @@ lnk_section_table_remove(LNK_SectionTable *sectab, String8 name)
}
ProfEnd();
return node;
}
internal LNK_Section *
@@ -210,8 +222,12 @@ lnk_section_table_search(LNK_SectionTable *sectab, String8 full_or_partial_name,
}
internal LNK_SectionArray
lnk_section_table_search_many(Arena *arena, LNK_SectionTable *sectab, String8 name)
lnk_section_table_search_many(Arena *arena, LNK_SectionTable *sectab, String8 full_or_partial_name)
{
String8 name = {0};
String8 postfix = {0};
coff_parse_section_name(full_or_partial_name, &name, &postfix);
U64 match_count = 0;
for (LNK_SectionNode *sect_n = sectab->list.first; sect_n != 0; sect_n = sect_n->next) {
if (str8_match(sect_n->data.name, name, 0)) {
@@ -223,7 +239,7 @@ lnk_section_table_search_many(Arena *arena, LNK_SectionTable *sectab, String8 na
if (match_count > 0) {
result.count = 0;
result.v = push_array(arena, LNK_Section *, match_count);
result.v = push_array(arena, LNK_Section *, match_count);
for (LNK_SectionNode *sect_n = sectab->list.first; sect_n != 0; sect_n = sect_n->next) {
if (str8_match(sect_n->data.name, name, 0)) {
@@ -307,9 +323,14 @@ lnk_section_table_merge(LNK_SectionTable *sectab, LNK_MergeDirectiveList merge_l
// merge section with destination
lnk_section_contrib_chunk_list_concat_in_place(&dst->contribs, &src->contribs);
src->is_merged = 1;
src->merge_id = dst->id;
// remove from output section list
lnk_section_table_remove(sectab, src->name);
LNK_SectionNode *merge_node = lnk_section_table_remove(sectab, src->name);
// move node to the merge list
SLLQueuePush(sectab->merge_list.first, sectab->merge_list.last, merge_node);
sectab->merge_list.count += 1;
}
}
scratch_end(scratch);
@@ -387,3 +408,22 @@ lnk_assign_section_file_space(LNK_Section *sect, U64 *foff_cursor)
}
}
internal LNK_Section *
lnk_finalized_section_from_id(LNK_SectionTable *sectab, U64 id)
{
for (LNK_SectionNode *sect_n = sectab->list.first; sect_n != 0; sect_n = sect_n->next) {
if (sect_n->data.id == id) {
return &sect_n->data;
}
}
for (LNK_SectionNode *sect_n = sectab->merge_list.first; sect_n != 0; sect_n = sect_n->next) {
if (sect_n->data.id == id) {
return lnk_finalized_section_from_id(sectab, sect_n->data.merge_id);
}
}
return 0;
}