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Overlay Functions Cleanup (#1235)

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* Cleanup load functions

* Some cleanup

* forgot .

* Split off Overlay_Load

* review

* OverlayRelocationType -> MIPSRelocationType

* Reloc type macro and mips relocations
This commit is contained in:
Derek Hensley 2022-05-31 11:28:17 -07:00 • committed by GitHub
parent 6eeb217225
commit bd6b51a869
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7 changed files with 135 additions and 124 deletions
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64
src/code/load.c Normal file
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#include "global.h"
s32 Overlay_Load(uintptr_t vRomStart, uintptr_t vRomEnd, void* vRamStart, void* vRamEnd, void* allocatedVRamAddr) {
s32 pad[3];
uintptr_t end;
OverlayRelocationSection* ovl;
u32 ovlOffset;
size_t size;
size = vRomEnd - vRomStart;
end = (uintptr_t)allocatedVRamAddr + size;
if (gOverlayLogSeverity >= 3) {
// "Start loading dynamic link function"
osSyncPrintf("\nダイナミックリンクファンクションのロードを開始します\n");
}
if (gOverlayLogSeverity >= 3) {
// "DMA transfer of TEXT, DATA, RODATA + rel (%08x-%08x)"
osSyncPrintf("TEXT,DATA,RODATA+relをＤＭＡ転送します(%08x-%08x)\n", allocatedVRamAddr, end);
}
DmaMgr_SendRequest0(allocatedVRamAddr, vRomStart, size);
ovlOffset = ((s32*)end)[-1];
ovl = (OverlayRelocationSection*)(end - ovlOffset);
if (gOverlayLogSeverity >= 3) {
osSyncPrintf("TEXT(%08x), DATA(%08x), RODATA(%08x), BSS(%08x)\n", ovl->textSize, ovl->dataSize, ovl->rodataSize,
ovl->bssSize);
}
if (gOverlayLogSeverity >= 3) {
osSyncPrintf("リロケーションします\n"); // "Relocate"
}
Overlay_Relocate(allocatedVRamAddr, ovl, vRamStart);
if (ovl->bssSize != 0) {
if (gOverlayLogSeverity >= 3) {
// "Clear BSS area (% 08x-% 08x)"
osSyncPrintf("BSS領域をクリアします(%08x-%08x)\n", end, end + ovl->bssSize);
}
bzero(end, ovl->bssSize);
}
size = (uintptr_t)&ovl->relocations[ovl->nRelocations] - (uintptr_t)ovl;
if (gOverlayLogSeverity >= 3) {
// "Clear REL area (%08x-%08x)"
osSyncPrintf("REL領域をクリアします(%08x-%08x)\n", ovl, (uintptr_t)ovl + size);
}
bzero(ovl, size);
size = (uintptr_t)vRamEnd - (uintptr_t)vRamStart;
osWritebackDCache(allocatedVRamAddr, size);
osInvalICache(allocatedVRamAddr, size);
if (gOverlayLogSeverity >= 3) {
// "Finish loading dynamic link function"
osSyncPrintf("ダイナミックリンクファンクションのロードを終了します\n\n");
}
return size;
}