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patch section symbol and test for relocations to discarded memory

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This commit is contained in:
Nikita Smith
2025-06-25 10:53:22 -07:00
committed by Ryan Fleury
parent 40fda5335c
commit 8da56025b3
6 changed files with 122 additions and 63 deletions
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src/linker/lnk_section_table.c
+42 -34
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@@ -67,34 +67,6 @@ lnk_section_contrib_chunk_list_concat_in_place(LNK_SectionContribChunkList *list
}
}
internal void
lnk_section_list_remove(LNK_SectionList *list, LNK_SectionNode *node)
{
if (list->count > 0) {
if (list->first == node) {
list->first = list->first->next;
list->count -= 1;
if (list->last == node) {
list->last = 0;
}
} else {
for (LNK_SectionNode *curr = list->first, *prev = 0; curr != 0; prev = curr, curr = curr->next) {
if (curr == node) {
prev->next = curr->next;
list->count -= 1;
if (list->last == curr) {
list->last = prev;
}
break;
}
}
}
}
}
internal LNK_SectionArray
lnk_section_array_from_list(Arena *arena, LNK_SectionList list)
{
@@ -108,6 +80,17 @@ lnk_section_array_from_list(Arena *arena, LNK_SectionList list)
return result;
}
internal LNK_SectionContrib *
lnk_get_first_section_contrib(LNK_Section *sect)
{
if (sect->contribs.chunk_count > 0) {
if (sect->contribs.first->count > 0) {
return &sect->contribs.first->v[0];
}
}
return 0;
}
internal LNK_SectionTable *
lnk_section_table_alloc(void)
{
@@ -154,7 +137,7 @@ lnk_section_table_push(LNK_SectionTable *sectab, String8 name, COFF_SectionFlags
sect->name = push_str8_copy(sect->arena, name);
sect->flags = flags;
sect->has_layout = 1;
LNK_SectionList *sect_list = &sectab->list;
SLLQueuePush(sect_list->first, sect_list->last, sect_node);
sect_list->count += 1;
@@ -172,18 +155,43 @@ lnk_section_table_remove(LNK_SectionTable *sectab, String8 name)
ProfBeginFunction();
// find node
LNK_SectionNode *sect_n;
for (sect_n = sectab->list.first; sect_n != 0; sect_n = sect_n->next) {
if (str8_match(sect_n->data.name, name, 0)) {
LNK_SectionNode *node;
for (node = sectab->list.first; node != 0; node = node->next) {
if (str8_match(node->data.name, name, 0)) {
break;
}
}
// remove node
lnk_section_list_remove(&sectab->list, sect_n);
{
LNK_SectionList *list = &sectab->list;
if (list->count > 0) {
if (list->first == node) {
list->first = list->first->next;
list->count -= 1;
if (list->last == node) {
list->last = 0;
}
} else {
for (LNK_SectionNode *curr = list->first, *prev = 0; curr != 0; prev = curr, curr = curr->next) {
if (curr == node) {
prev->next = curr->next;
list->count -= 1;
if (list->last == curr) {
list->last = prev;
}
break;
}
}
}
}
}
// push to free list
SLLQueuePush(sectab->free_list.first, sectab->free_list.last, sect_n);
SLLQueuePush(sectab->free_list.first, sectab->free_list.last, node);
sectab->free_list.count += 1;
ProfEnd();