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Fix RGBLINK ignoring alignment constraints when placing empty sections

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Fixes #2095
This commit is contained in:
Rangi
2026-09-17 11:16:18 -04:00
parent 6f69867d04
commit b4988afc8a
3 changed files with 31 additions and 2 deletions
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src/link/assign.cpp
+8 -2
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@@ -256,12 +256,18 @@ static void placeSection(Section &section) {
// Specially handle 0-byte SECTIONs, as they can't overlap anything
if (section.size == 0) {
// Unless the SECTION's address was fixed, the starting address
// is fine for any alignment, as checked in sect_DoSanityChecks.
// Unless the SECTION has a fixed address or non-zero alignment, the starting
// address is fine for any alignment, as checked in `sect_DoSanityChecks`.
MemoryLocation location = {
.address = section.isAddressFixed ? section.org : typeInfo.startAddr,
.bank = section.isBankFixed ? section.bank : typeInfo.firstBank,
};
if (section.isAlignFixed && !section.isAddressFixed) {
if (uint16_t offset = (location.address - section.alignOfs) & section.alignMask;
offset != 0) {
location.address += section.alignMask + 1 - offset;
}
}
assignSection(section, location);
return;
}