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Fix resetting the trampoline data to avoid a crash when re-loading plugins 50+ times

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Maschell
2022-10-03 21:58:11 +02:00
parent 5303e05508
commit 0a254e59f4
3 changed files with 11 additions and 7 deletions
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5
source/utils/ElfUtils.cpp
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@@ -89,8 +89,7 @@ bool ElfUtils::elfLinkOne(char type, size_t offset, int32_t addend, uint32_t des
// so they can be overridden/updated/reused on the next application launch.
//
// Relocations that won't change will have the status RELOC_TRAMP_FIXED and are set to free when the module is unloaded.
if (trampoline_data[i].status == RELOC_TRAMP_FREE ||
trampoline_data[i].status == RELOC_TRAMP_IMPORT_DONE) {
if (trampoline_data[i].status == RELOC_TRAMP_FREE) {
freeSlot = &(trampoline_data[i]);
break;
}
@@ -117,11 +116,9 @@ bool ElfUtils::elfLinkOne(char type, size_t offset, int32_t addend, uint32_t des
freeSlot->trampoline[1] = 0x616B0000 | (((uint32_t) value) & 0x0000ffff); // ori r11, r11, real_addr@l
freeSlot->trampoline[2] = 0x7D6903A6; // mtctr r11
freeSlot->trampoline[3] = 0x4E800420; // bctr
DCFlushRange((void *) freeSlot->trampoline, sizeof(freeSlot->trampoline));
ICInvalidateRange((unsigned char *) freeSlot->trampoline, sizeof(freeSlot->trampoline));
freeSlot->id = trampolineId;
DCFlushRange((void *) &freeSlot->id, sizeof(freeSlot->id));
ICInvalidateRange((unsigned char *) &freeSlot->id, sizeof(freeSlot->id));
if (reloc_type == RELOC_TYPE_FIXED) {