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51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
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#include "InterceptRouting/RoutingPlugin/NearBranchTrampoline/NearBranchTrampoline.h"
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#include "dobby_internal.h"
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#include "MemoryAllocator/NearMemoryArena.h"
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#include "InterceptRouting/RoutingPlugin/RoutingPlugin.h"
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using namespace zz;
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PUBLIC void dobby_enable_near_branch_trampoline() {
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RoutingPluginInterface *plugin = new NearBranchTrampolinePlugin;
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RoutingPluginManager::registerPlugin("near_branch_trampoline", plugin);
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RoutingPluginManager::near_branch_trampoline = plugin;
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}
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PUBLIC void dobby_disable_near_branch_trampoline() {
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NearBranchTrampolinePlugin *plugin = (NearBranchTrampolinePlugin *)RoutingPluginManager::near_branch_trampoline;
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delete plugin;
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RoutingPluginManager::near_branch_trampoline = NULL;
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}
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#if 0
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int NearBranchTrampolinePlugin::PredefinedTrampolineSize() {
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#if __arm64__
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return 4;
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#elif __arm__
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return 4;
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#endif
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}
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#endif
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extern CodeBufferBase *GenerateNearTrampolineBuffer(InterceptRouting *routing, addr_t from, addr_t to);
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bool NearBranchTrampolinePlugin::GenerateTrampolineBuffer(InterceptRouting *routing, void *src, void *dst) {
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CodeBufferBase *trampoline_buffer;
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trampoline_buffer = GenerateNearTrampolineBuffer(routing, (addr_t)src, (addr_t)dst);
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if (trampoline_buffer == NULL)
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return false;
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routing->SetTrampolineBuffer(trampoline_buffer);
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return true;
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}
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// generate trampoline, patch the original entry
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bool NearBranchTrampolinePlugin::Active(InterceptRouting *routing) {
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addr_t src, dst;
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HookEntry *entry = routing->GetHookEntry();
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src = (addr_t)entry->target_address;
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dst = (addr_t)routing->GetTrampolineTarget();
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return true;
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}
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