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WIP function pad min

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This commit is contained in:
Nikita Smith
2025-06-25 10:53:24 -07:00
committed by Ryan Fleury
parent 9d93eda3ed
commit 5fb0d978b9
7 changed files with 211 additions and 64 deletions
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src/linker/lnk_section_table.c
+10 -13
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@@ -319,7 +319,7 @@ lnk_section_contrib_chunk_is_before(void *raw_a, void *raw_b)
}
internal void
lnk_finalize_section_layout(LNK_Section *sect, U64 file_align)
lnk_finalize_section_layout(LNK_Section *sect, U64 file_align, U64 function_pad_min)
{
Temp scratch = scratch_begin(0,0);
@@ -341,22 +341,19 @@ lnk_finalize_section_layout(LNK_Section *sect, U64 file_align)
ProfEnd();
ProfBegin("Layout Contribs");
U64 cursor = 0;
U64 min_sc_size = sect->flags & COFF_SectionFlag_CntCode ? function_pad_min : 0;
U64 cursor = 0;
for (LNK_SectionContribChunk *sc_chunk = sect->contribs.first; sc_chunk != 0; sc_chunk = sc_chunk->next) {
for (U64 sc_idx = 0; sc_idx < sc_chunk->count; sc_idx += 1) {
LNK_SectionContrib *sc = sc_chunk->v[sc_idx];
cursor = AlignPow2(cursor, sc->align);
// store section contribution start offset
U64 sc_off = cursor;
// compute contrib size
U64 sc_size = lnk_size_from_section_contrib(sc);
cursor += sc_size;
// assign offset and size
sc->u.off = sc_off;
cursor = AlignPow2(cursor, sc->align);
sc->u.off = cursor;
// advance cursor
U64 sc_size = lnk_size_from_section_contrib(sc);
cursor += Max(min_sc_size, sc_size);
}
}
ProfEnd();
@@ -403,7 +400,7 @@ internal U64
lnk_size_from_section_contrib(LNK_SectionContrib *sc)
{
U64 size = 0;
for (String8Node *n = sc->data_list; n != 0; n = n->next) {
for (String8Node *n = &sc->first_data_node; n != 0; n = n->next) {
size += n->string.size;
}
return size;