mirror of
https://github.com/N64Recomp/N64Recomp.git
synced 2025-10-30 08:02:11 +00:00
1222 lines
41 KiB
C++
1222 lines
41 KiB
C++
#include <cstdio>
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#include <cstdlib>
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#include <unordered_set>
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#include <span>
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#include <filesystem>
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#include "rabbitizer.hpp"
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#include "elfio/elfio.hpp"
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#include "fmt/format.h"
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#include "fmt/ostream.h"
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#include "recomp_port.h"
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#include <set>
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std::unordered_set<std::string> reimplemented_funcs{
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// OS initialize functions
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"__osInitialize_common",
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"osInitialize",
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"osGetMemSize",
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// Audio interface functions
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"osAiGetLength",
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"osAiGetStatus",
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"osAiSetFrequency",
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"osAiSetNextBuffer",
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// Video interface functions
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"osViSetXScale",
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"osViSetYScale",
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"osCreateViManager",
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"osViBlack",
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"osViSetSpecialFeatures",
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"osViGetCurrentFramebuffer",
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"osViGetNextFramebuffer",
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"osViSwapBuffer",
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"osViSetMode",
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"osViSetEvent",
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// RDP functions
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"osDpSetNextBuffer",
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// RSP functions
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"osSpTaskLoad",
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"osSpTaskStartGo",
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"osSpTaskYield",
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"osSpTaskYielded",
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"__osSpSetPc",
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// Controller functions
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"osContInit",
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"osContStartReadData",
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"osContGetReadData",
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"osContStartQuery",
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"osContGetQuery",
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"osContSetCh",
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// EEPROM functions
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"osEepromProbe",
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"osEepromWrite",
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"osEepromLongWrite",
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"osEepromRead",
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"osEepromLongRead",
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// Rumble functions
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"__osMotorAccess",
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"osMotorInit",
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"osMotorStart",
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"osMotorStop",
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// PFS functions
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"osPfsInitPak",
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"osPfsFreeBlocks",
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"osPfsAllocateFile",
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"osPfsDeleteFile",
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"osPfsFileState",
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"osPfsFindFile",
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"osPfsReadWriteFile",
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// Parallel interface (cartridge, DMA, etc.) functions
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"osCartRomInit",
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"osCreatePiManager",
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"osPiStartDma",
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"osEPiStartDma",
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"osPiGetStatus",
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"osEPiRawStartDma",
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"osEPiReadIo",
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// Flash saving functions
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"osFlashInit",
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"osFlashReadStatus",
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"osFlashReadId",
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"osFlashClearStatus",
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"osFlashAllErase",
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"osFlashAllEraseThrough",
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"osFlashSectorErase",
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"osFlashSectorEraseThrough",
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"osFlashCheckEraseEnd",
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"osFlashWriteBuffer",
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"osFlashWriteArray",
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"osFlashReadArray",
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"osFlashChange",
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// Threading functions
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"osCreateThread",
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"osStartThread",
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"osStopThread",
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"osDestroyThread",
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"osSetThreadPri",
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"osGetThreadPri",
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"osGetThreadId",
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// Message Queue functions
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"osCreateMesgQueue",
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"osRecvMesg",
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"osSendMesg",
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"osJamMesg",
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"osSetEventMesg",
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// Timer functions
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"osGetTime",
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"osSetTimer",
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"osStopTimer",
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// Voice functions
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"osVoiceSetWord",
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"osVoiceCheckWord",
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"osVoiceStopReadData",
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"osVoiceInit",
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"osVoiceMaskDictionary",
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"osVoiceStartReadData",
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"osVoiceControlGain",
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"osVoiceGetReadData",
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"osVoiceClearDictionary",
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// interrupt functions
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"osSetIntMask",
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"__osDisableInt",
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"__osRestoreInt",
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// TLB functions
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"osVirtualToPhysical",
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// Coprocessor 0/1 functions
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"osGetCount",
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"__osSetFpcCsr",
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// Cache funcs
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"osInvalDCache",
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"osInvalICache",
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"osWritebackDCache",
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"osWritebackDCacheAll",
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// Debug functions
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"is_proutSyncPrintf",
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"__checkHardware_msp",
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"__checkHardware_kmc",
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"__checkHardware_isv",
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"__osInitialize_msp",
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"__osInitialize_kmc",
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"__osInitialize_isv",
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"__osRdbSend",
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// libgcc math routines (these throw off the recompiler)
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"__udivdi3",
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"__divdi3",
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"__umoddi3",
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// ido math routines
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"__ull_div",
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"__ll_div",
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"__ll_mul",
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"__ull_rem",
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"__ull_to_d",
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"__ull_to_f",
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};
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std::unordered_set<std::string> ignored_funcs {
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// OS initialize functions
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"__createSpeedParam",
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"__osInitialize_common",
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"osInitialize",
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"osGetMemSize",
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// Audio interface functions
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"osAiGetLength",
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"osAiGetStatus",
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"osAiSetFrequency",
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"osAiSetNextBuffer",
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"__osAiDeviceBusy",
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// Video interface functions
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"osViBlack",
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"osViFade",
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"osViGetCurrentField",
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"osViGetCurrentFramebuffer",
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"osViGetCurrentLine",
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"osViGetCurrentMode",
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"osViGetNextFramebuffer",
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"osViGetStatus",
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"osViRepeatLine",
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"osViSetEvent",
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"osViSetMode",
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"osViSetSpecialFeatures",
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"osViSetXScale",
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"osViSetYScale",
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"osViSwapBuffer",
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"osCreateViManager",
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"viMgrMain",
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"__osViInit",
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"__osViSwapContext",
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"__osViGetCurrentContext",
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// RDP functions
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"osDpGetCounters",
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"osDpSetStatus",
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"osDpGetStatus",
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"osDpSetNextBuffer",
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"__osDpDeviceBusy",
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// RSP functions
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"osSpTaskLoad",
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"osSpTaskStartGo",
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"osSpTaskYield",
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"osSpTaskYielded",
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"__osSpDeviceBusy",
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"__osSpGetStatus",
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"__osSpRawStartDma",
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"__osSpRawReadIo",
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"__osSpRawWriteIo",
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"__osSpSetPc",
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"__osSpSetStatus",
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// Controller functions
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"osContGetQuery",
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"osContGetReadData",
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"osContInit",
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"osContReset",
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"osContSetCh",
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"osContStartQuery",
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"osContStartReadData",
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"__osContAddressCrc",
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"__osContDataCrc",
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"__osContGetInitData",
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"__osContRamRead",
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"__osContRamWrite",
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"__osContChannelReset",
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// EEPROM functions
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"osEepromLongRead",
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"osEepromLongWrite",
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"osEepromProbe",
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"osEepromRead",
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"osEepromWrite",
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"__osEepStatus",
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// Rumble functions
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"osMotorInit",
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"osMotorStart",
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"osMotorStop",
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"__osMotorAccess",
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"_MakeMotorData",
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// Pack functions
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"__osCheckId",
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"__osCheckPackId",
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"__osGetId",
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"__osPfsRWInode",
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"__osRepairPackId",
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"__osPfsSelectBank",
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"__osCheckPackId",
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"ramromMain",
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// PFS functions
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"osPfsAllocateFile",
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"osPfsChecker",
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"osPfsDeleteFile",
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"osPfsFileState",
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"osPfsFindFile",
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"osPfsFreeBlocks",
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"osPfsGetLabel",
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"osPfsInit",
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"osPfsInitPak",
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"osPfsIsPlug",
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"osPfsNumFiles",
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"osPfsRepairId",
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"osPfsReadWriteFile",
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"__osPackEepReadData",
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"__osPackEepWriteData",
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"__osPackRamReadData",
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"__osPackRamWriteData",
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"__osPackReadData",
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"__osPackRequestData",
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"__osPfsGetInitData",
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"__osPfsGetOneChannelData",
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"__osPfsGetStatus",
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"__osPfsRequestData",
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"__osPfsRequestOneChannel",
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"__osPfsCreateAccessQueue",
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"__osPfsCheckRamArea",
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"__osPfsGetNextPage",
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// Low level serial interface functions
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"__osSiDeviceBusy",
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"__osSiGetStatus",
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"__osSiRawStartDma",
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"__osSiRawReadIo",
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"__osSiRawWriteIo",
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"__osSiCreateAccessQueue",
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"__osSiGetAccess",
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"__osSiRelAccess",
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// Parallel interface (cartridge, DMA, etc.) functions
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"osCartRomInit",
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"osLeoDiskInit",
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"osCreatePiManager",
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"__osDevMgrMain",
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"osPiGetCmdQueue",
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"osPiGetStatus",
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"osPiReadIo",
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"osPiStartDma",
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"osPiWriteIo",
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"osEPiGetDeviceType",
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"osEPiStartDma",
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"osEPiWriteIo",
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"osEPiReadIo",
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"osPiRawStartDma",
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"osPiRawReadIo",
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"osPiRawWriteIo",
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"osEPiRawStartDma",
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"osEPiRawReadIo",
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"osEPiRawWriteIo",
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"__osPiRawStartDma",
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"__osPiRawReadIo",
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"__osPiRawWriteIo",
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"__osEPiRawStartDma",
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"__osEPiRawReadIo",
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"__osEPiRawWriteIo",
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"__osPiDeviceBusy",
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"__osPiCreateAccessQueue",
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"__osPiGetAccess",
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"__osPiRelAccess",
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"__osLeoAbnormalResume",
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"__osLeoInterrupt",
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"__osLeoResume",
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// Flash saving functions
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"osFlashInit",
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"osFlashReadStatus",
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"osFlashReadId",
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"osFlashClearStatus",
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"osFlashAllErase",
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"osFlashAllEraseThrough",
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"osFlashSectorErase",
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"osFlashSectorEraseThrough",
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"osFlashCheckEraseEnd",
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"osFlashWriteBuffer",
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"osFlashWriteArray",
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"osFlashReadArray",
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"osFlashChange",
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// Threading functions
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"osCreateThread",
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"osStartThread",
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"osStopThread",
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"osDestroyThread",
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"osYieldThread",
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"osSetThreadPri",
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"osGetThreadPri",
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"osGetThreadId",
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"__osDequeueThread",
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// Message Queue functions
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"osCreateMesgQueue",
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"osSendMesg",
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"osJamMesg",
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"osRecvMesg",
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"osSetEventMesg",
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// Timer functions
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"osStartTimer",
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"osSetTimer",
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"osStopTimer",
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"osGetTime",
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"__osInsertTimer",
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"__osTimerInterrupt",
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"__osTimerServicesInit",
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"__osSetTimerIntr",
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// Voice functions
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"osVoiceSetWord",
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"osVoiceCheckWord",
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"osVoiceStopReadData",
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"osVoiceInit",
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"osVoiceMaskDictionary",
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"osVoiceStartReadData",
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"osVoiceControlGain",
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"osVoiceGetReadData",
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"osVoiceClearDictionary",
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"__osVoiceCheckResult",
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"__osVoiceContRead36",
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"__osVoiceContWrite20",
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"__osVoiceContWrite4",
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"__osVoiceContRead2",
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"__osVoiceSetADConverter",
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"__osVoiceContDataCrc",
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"__osVoiceGetStatus",
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"corrupted",
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"corrupted_init",
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// exceptasm functions
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"__osExceptionPreamble",
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"__osException",
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"send_mesg",
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"handle_CpU",
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"__osEnqueueAndYield",
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"__osEnqueueThread",
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"__osPopThread",
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"__osNop",
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"__osDispatchThread",
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"__osCleanupThread",
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"osGetCurrFaultedThread",
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"osGetNextFaultedThread",
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// interrupt functions
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"osSetIntMask",
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"osGetIntMask",
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"__osDisableInt",
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"__osRestoreInt",
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"__osSetGlobalIntMask",
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"__osResetGlobalIntMask",
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// TLB functions
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"osMapTLB",
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"osUnmapTLB",
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"osUnmapTLBAll",
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"osSetTLBASID",
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"osMapTLBRdb",
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"osVirtualToPhysical",
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"__osGetTLBHi",
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"__osGetTLBLo0",
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"__osGetTLBLo1",
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"__osGetTLBPageMask",
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"__osGetTLBASID",
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"__osProbeTLB",
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// Coprocessor 0/1 functions
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"__osSetCount",
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"osGetCount",
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"__osSetSR",
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"__osGetSR",
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"__osSetCause",
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"__osGetCause",
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"__osSetCompare",
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"__osGetCompare",
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"__osSetConfig",
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"__osGetConfig",
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"__osSetWatchLo",
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"__osGetWatchLo",
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"__osSetFpcCsr",
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// Cache funcs
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"osInvalDCache",
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"osInvalICache",
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"osWritebackDCache",
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"osWritebackDCacheAll",
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// Microcodes
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"rspbootTextStart",
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"gspF3DEX2_fifoTextStart",
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"gspS2DEX2_fifoTextStart",
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"gspL3DEX2_fifoTextStart",
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// Debug functions
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"msp_proutSyncPrintf",
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"__osInitialize_msp",
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"__checkHardware_msp",
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"kmc_proutSyncPrintf",
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"__osInitialize_kmc",
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"__checkHardware_kmc",
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"isPrintfInit",
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"is_proutSyncPrintf",
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"__osInitialize_isv",
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"__checkHardware_isv",
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"__isExpJP",
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"__isExp",
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"__osRdbSend",
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"__rmonSendData",
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"__rmonWriteMem",
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"__rmonReadWordAt",
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"__rmonWriteWordTo",
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"__rmonWriteMem",
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"__rmonSetSRegs",
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"__rmonSetVRegs",
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"__rmonStopThread",
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"__rmonGetThreadStatus",
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"__rmonGetVRegs",
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"__rmonHitSpBreak",
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"__rmonRunThread",
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"__rmonClearBreak",
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"__rmonGetBranchTarget",
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"__rmonGetSRegs",
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"__rmonSetBreak",
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"__rmonReadMem",
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"__rmonRunThread",
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"__rmonCopyWords",
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"__rmonExecute",
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"__rmonGetExceptionStatus",
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"__rmonGetExeName",
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"__rmonGetFRegisters",
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"__rmonGetGRegisters",
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"__rmonGetRegionCount",
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"__rmonGetRegions",
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"__rmonGetRegisterContents",
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"__rmonGetTCB",
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"__rmonHitBreak",
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"__rmonHitCpuFault",
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"__rmonIdleRCP",
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"__rmonInit",
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"__rmonIOflush",
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"__rmonIOhandler",
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"__rmonIOputw",
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"__rmonListBreak",
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"__rmonListProcesses",
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"__rmonListThreads",
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"__rmonLoadProgram",
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"__rmonMaskIdleThreadInts",
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"__rmonMemcpy",
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"__rmonPanic",
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"__rmonRCPrunning",
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"__rmonRunRCP",
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"__rmonSendFault",
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"__rmonSendHeader",
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"__rmonSendReply",
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"__rmonSetComm",
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"__rmonSetFault",
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"__rmonSetFRegisters",
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"__rmonSetGRegisters",
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"__rmonSetSingleStep",
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"__rmonStepRCP",
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"__rmonStopUserThreads",
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"__rmonThreadStatus",
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"__rmon",
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"__rmonRunThread",
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"rmonFindFaultedThreads",
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"rmonMain",
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"rmonPrintf",
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"rmonGetRcpRegister",
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"kdebugserver",
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"send",
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// libgcc math routines (these throw off the recompiler)
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"__muldi3",
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"__divdi3",
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"__udivdi3",
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"__umoddi3",
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// ido math routines
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"__ll_div",
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"__ll_lshift",
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"__ll_mod",
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"__ll_mul",
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"__ll_rem",
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"__ll_rshift",
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"__ull_div",
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"__ull_divremi",
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"__ull_rem",
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"__ull_rshift",
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"__d_to_ll",
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"__f_to_ll",
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"__d_to_ull",
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"__f_to_ull",
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"__ll_to_d",
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"__ll_to_f",
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"__ull_to_d",
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"__ull_to_f",
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// Setjmp/longjmp for mario party
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"setjmp",
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"longjmp"
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// 64-bit functions for banjo
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"func_8025C29C",
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"func_8025C240",
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"func_8025C288",
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};
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|
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std::unordered_set<std::string> renamed_funcs{
|
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"sincosf",
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"sinf",
|
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"cosf",
|
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"sqrt",
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"sqrtf",
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"memcpy",
|
|
"memset",
|
|
"strchr",
|
|
"strlen",
|
|
"sprintf",
|
|
"bzero",
|
|
"bcopy",
|
|
"bcmp",
|
|
"setjmp",
|
|
"longjmp",
|
|
"ldiv",
|
|
"lldiv",
|
|
"ceil",
|
|
"ceilf",
|
|
"floor",
|
|
"floorf",
|
|
"fmodf",
|
|
"lround",
|
|
"lroundf",
|
|
"nearbyint",
|
|
"nearbyintf",
|
|
"round",
|
|
"roundf",
|
|
"trunc",
|
|
"truncf",
|
|
"vsprintf"
|
|
};
|
|
|
|
// Functions that weren't declared properly and thus have no size in the elf
|
|
std::unordered_map<std::string, size_t> unsized_funcs{
|
|
{ "guMtxF2L", 0x64 },
|
|
{ "guScaleF", 0x48 },
|
|
{ "guTranslateF", 0x48 },
|
|
{ "guMtxIdentF", 0x48 },
|
|
{ "sqrtf", 0x8 },
|
|
{ "guMtxIdent", 0x4C },
|
|
};
|
|
|
|
bool read_symbols(RecompPort::Context& context, const ELFIO::elfio& elf_file, ELFIO::section* symtab_section, uint32_t entrypoint) {
|
|
bool found_entrypoint_func = false;
|
|
ELFIO::symbol_section_accessor symbols{ elf_file, symtab_section };
|
|
fmt::print("Num symbols: {}\n", symbols.get_symbols_num());
|
|
|
|
for (int sym_index = 0; sym_index < symbols.get_symbols_num(); sym_index++) {
|
|
std::string name;
|
|
ELFIO::Elf64_Addr value;
|
|
ELFIO::Elf_Xword size;
|
|
unsigned char bind;
|
|
unsigned char type;
|
|
ELFIO::Elf_Half section_index;
|
|
unsigned char other;
|
|
bool ignored = false;
|
|
bool reimplemented = false;
|
|
|
|
// Read symbol properties
|
|
symbols.get_symbol(sym_index, name, value, size, bind, type,
|
|
section_index, other);
|
|
|
|
if (section_index >= context.sections.size()) {
|
|
continue;
|
|
}
|
|
|
|
// Check if this symbol is the entrypoint
|
|
if (value == entrypoint /*&& type == ELFIO::STT_FUNC*/) {
|
|
if (found_entrypoint_func) {
|
|
fmt::print(stderr, "Ambiguous entrypoint\n");
|
|
return false;
|
|
}
|
|
found_entrypoint_func = true;
|
|
size = 0x50; // dummy size for entrypoints, should cover them all
|
|
name = "recomp_entrypoint";
|
|
}
|
|
|
|
// Check if this symbol is unsized and if so populate its size from the unsized_funcs map
|
|
if (size == 0) {
|
|
auto size_find = unsized_funcs.find(name);
|
|
if (size_find != unsized_funcs.end()) {
|
|
size = size_find->second;
|
|
type = ELFIO::STT_FUNC;
|
|
}
|
|
}
|
|
|
|
if (reimplemented_funcs.contains(name)) {
|
|
reimplemented = true;
|
|
name = name + "_recomp";
|
|
ignored = true;
|
|
} else if (ignored_funcs.contains(name)) {
|
|
name = name + "_recomp";
|
|
ignored = true;
|
|
}
|
|
|
|
auto& section = context.sections[section_index];
|
|
|
|
// Check if this symbol is a function or has no type (like a regular glabel would)
|
|
// Symbols with no type have a dummy entry created so that their symbol can be looked up for function calls
|
|
if (ignored || type == ELFIO::STT_FUNC || type == ELFIO::STT_NOTYPE || type == ELFIO::STT_OBJECT) {
|
|
if (renamed_funcs.contains(name)) {
|
|
name = name + "_recomp";
|
|
ignored = false;
|
|
}
|
|
if (section_index < context.sections.size()) {
|
|
auto section_offset = value - elf_file.sections[section_index]->get_address();
|
|
const uint32_t* words = reinterpret_cast<const uint32_t*>(elf_file.sections[section_index]->get_data() + section_offset);
|
|
uint32_t vram = static_cast<uint32_t>(value);
|
|
uint32_t num_instructions = type == ELFIO::STT_FUNC ? size / 4 : 0;
|
|
uint32_t rom_address = static_cast<uint32_t>(section_offset + section.rom_addr);
|
|
|
|
section.function_addrs.push_back(vram);
|
|
context.functions_by_vram[vram].push_back(context.functions.size());
|
|
|
|
// Find the entrypoint by rom address in case it doesn't have vram as its value
|
|
if (rom_address == 0x1000) {
|
|
vram = entrypoint;
|
|
found_entrypoint_func = true;
|
|
name = "recomp_entrypoint";
|
|
if (size == 0) {
|
|
num_instructions = 0x50 / 4;
|
|
}
|
|
}
|
|
|
|
if (num_instructions > 0) {
|
|
context.section_functions[section_index].push_back(context.functions.size());
|
|
}
|
|
context.functions.emplace_back(
|
|
vram,
|
|
rom_address,
|
|
std::span{ words, num_instructions },
|
|
std::move(name),
|
|
section_index,
|
|
ignored,
|
|
reimplemented
|
|
);
|
|
} else {
|
|
uint32_t vram = static_cast<uint32_t>(value);
|
|
section.function_addrs.push_back(vram);
|
|
context.functions_by_vram[vram].push_back(context.functions.size());
|
|
context.functions.emplace_back(
|
|
vram,
|
|
0,
|
|
std::span<const uint32_t>{},
|
|
std::move(name),
|
|
section_index,
|
|
ignored,
|
|
reimplemented
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
return found_entrypoint_func;
|
|
}
|
|
|
|
struct SegmentEntry {
|
|
ELFIO::Elf64_Off data_offset;
|
|
ELFIO::Elf64_Addr physical_address;
|
|
ELFIO::Elf_Xword memory_size;
|
|
};
|
|
|
|
std::optional<size_t> get_segment(const std::vector<SegmentEntry>& segments, ELFIO::Elf_Xword section_size, ELFIO::Elf64_Off section_offset) {
|
|
// A linear search is safest even if the segment list is sorted, as there may be overlapping segments
|
|
for (size_t i = 0; i < segments.size(); i++) {
|
|
const auto& segment = segments[i];
|
|
|
|
// Check that the section's data in the elf file is within bounds of the segment's data
|
|
if (section_offset >= segment.data_offset && section_offset + section_size <= segment.data_offset + segment.memory_size) {
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return std::nullopt;
|
|
}
|
|
|
|
ELFIO::section* read_sections(RecompPort::Context& context, const ELFIO::elfio& elf_file) {
|
|
ELFIO::section* symtab_section = nullptr;
|
|
std::vector<SegmentEntry> segments{};
|
|
segments.resize(elf_file.segments.size());
|
|
|
|
// Copy the data for each segment into the segment entry list
|
|
for (size_t segment_index = 0; segment_index < elf_file.segments.size(); segment_index++) {
|
|
const auto& segment = *elf_file.segments[segment_index];
|
|
segments[segment_index].data_offset = segment.get_offset();
|
|
segments[segment_index].physical_address = segment.get_physical_address();
|
|
segments[segment_index].memory_size = segment.get_file_size();
|
|
}
|
|
|
|
//// Sort the segments by physical address
|
|
//std::sort(segments.begin(), segments.end(),
|
|
// [](const SegmentEntry& lhs, const SegmentEntry& rhs) {
|
|
// return lhs.data_offset < rhs.data_offset;
|
|
// }
|
|
//);
|
|
|
|
std::unordered_map<std::string, ELFIO::section*> reloc_sections_by_name;
|
|
|
|
// Iterate over every section to record rom addresses and find the symbol table
|
|
fmt::print("Sections\n");
|
|
for (const auto& section : elf_file.sections) {
|
|
auto& section_out = context.sections[section->get_index()];
|
|
//fmt::print(" {}: {} @ 0x{:08X}, 0x{:08X}\n", section->get_index(), section->get_name(), section->get_address(), context.rom.size());
|
|
// Set the rom address of this section to the current accumulated ROM size
|
|
section_out.ram_addr = section->get_address();
|
|
section_out.size = section->get_size();
|
|
ELFIO::Elf_Word type = section->get_type();
|
|
std::string section_name = section->get_name();
|
|
|
|
// Check if this section is the symbol table and record it if so
|
|
if (type == ELFIO::SHT_SYMTAB) {
|
|
symtab_section = section.get();
|
|
}
|
|
|
|
// Check if this section is a reloc section
|
|
if (type == ELFIO::SHT_REL) {
|
|
// If it is, determine the name of the section it relocates
|
|
if (!section_name.starts_with(".rel")) {
|
|
fmt::print(stderr, "Could not determine corresponding section for reloc section {}\n", section_name.c_str());
|
|
return nullptr;
|
|
}
|
|
|
|
std::string reloc_target_section = section_name.substr(strlen(".rel"));
|
|
|
|
// If this reloc section is for a section that has been marked as relocatable, record it in the reloc section lookup
|
|
if (context.relocatable_sections.contains(reloc_target_section)) {
|
|
reloc_sections_by_name[reloc_target_section] = section.get();
|
|
}
|
|
}
|
|
|
|
// If this section isn't bss (SHT_NOBITS) and ends up in the rom (SHF_ALLOC),
|
|
// find this section's rom address and copy it into the rom
|
|
if (type != ELFIO::SHT_NOBITS && section->get_flags() & ELFIO::SHF_ALLOC && section->get_size() != 0) {
|
|
//// Find the segment this section is in to determine the physical (rom) address of the section
|
|
//auto segment_it = std::upper_bound(segments.begin(), segments.end(), section->get_offset(),
|
|
// [](ELFIO::Elf64_Off section_offset, const SegmentEntry& segment) {
|
|
// return section_offset < segment.data_offset;
|
|
// }
|
|
//);
|
|
//if (segment_it == segments.begin()) {
|
|
// fmt::print(stderr, "Could not find segment that section {} belongs to!\n", section_name.c_str());
|
|
// return nullptr;
|
|
//}
|
|
//// Upper bound returns the iterator after the element we're looking for, so rewind by one
|
|
//// This is safe because we checked if segment_it was segments.begin() already, which is the minimum value it could be
|
|
//const SegmentEntry& segment = *(segment_it - 1);
|
|
//// Check to be sure that the section is actually in this segment
|
|
//if (section->get_offset() >= segment.data_offset + segment.memory_size) {
|
|
// fmt::print(stderr, "Section {} out of range of segment at offset 0x{:08X}\n", section_name.c_str(), segment.data_offset);
|
|
// return nullptr;
|
|
//}
|
|
std::optional<size_t> segment_index = get_segment(segments, section_out.size, section->get_offset());
|
|
if (!segment_index.has_value()) {
|
|
fmt::print(stderr, "Could not find segment that section {} belongs to!\n", section_name.c_str());
|
|
return nullptr;
|
|
}
|
|
const SegmentEntry& segment = segments[segment_index.value()];
|
|
// Calculate the rom address based on this section's offset into the segment and the segment's rom address
|
|
section_out.rom_addr = segment.physical_address + (section->get_offset() - segment.data_offset);
|
|
// Resize the output rom if needed to fit this section
|
|
size_t required_rom_size = section_out.rom_addr + section_out.size;
|
|
if (required_rom_size > context.rom.size()) {
|
|
context.rom.resize(required_rom_size);
|
|
}
|
|
// Copy this section's data into the rom
|
|
std::copy(section->get_data(), section->get_data() + section->get_size(), &context.rom[section_out.rom_addr]);
|
|
} else {
|
|
// Otherwise mark this section as having an invalid rom address
|
|
section_out.rom_addr = (ELFIO::Elf_Xword)-1;
|
|
}
|
|
// Check if this section is marked as executable, which means it has code in it
|
|
if (section->get_flags() & ELFIO::SHF_EXECINSTR) {
|
|
section_out.executable = true;
|
|
context.executable_section_count++;
|
|
}
|
|
section_out.name = section_name;
|
|
}
|
|
|
|
if (symtab_section == nullptr) {
|
|
fmt::print(stderr, "No symtab section found\n");
|
|
return nullptr;
|
|
}
|
|
|
|
ELFIO::symbol_section_accessor symbol_accessor{ elf_file, symtab_section };
|
|
auto num_syms = symbol_accessor.get_symbols_num();
|
|
|
|
// TODO make sure that a reloc section was found for every section marked as relocatable
|
|
|
|
// Process reloc sections
|
|
for (RecompPort::Section §ion_out : context.sections) {
|
|
// Check if a reloc section was found that corresponds with this section
|
|
auto reloc_find = reloc_sections_by_name.find(section_out.name);
|
|
if (reloc_find != reloc_sections_by_name.end()) {
|
|
// Mark the section as relocatable
|
|
section_out.relocatable = true;
|
|
// Create an accessor for the reloc section
|
|
ELFIO::relocation_section_accessor rel_accessor{ elf_file, reloc_find->second };
|
|
// Allocate space for the relocs in this section
|
|
section_out.relocs.resize(rel_accessor.get_entries_num());
|
|
// Track whether the previous reloc was a HI16 and its previous full_immediate
|
|
bool prev_hi = false;
|
|
uint32_t prev_hi_immediate = 0;
|
|
uint32_t prev_hi_symbol = std::numeric_limits<uint32_t>::max();
|
|
|
|
for (size_t i = 0; i < section_out.relocs.size(); i++) {
|
|
// Get the current reloc
|
|
ELFIO::Elf64_Addr rel_offset;
|
|
ELFIO::Elf_Word rel_symbol;
|
|
unsigned int rel_type;
|
|
ELFIO::Elf_Sxword bad_rel_addend; // Addends aren't encoded in the reloc, so ignore this one
|
|
rel_accessor.get_entry(i, rel_offset, rel_symbol, rel_type, bad_rel_addend);
|
|
|
|
RecompPort::Reloc& reloc_out = section_out.relocs[i];
|
|
|
|
// Get the real full_immediate by extracting the immediate from the instruction
|
|
uint32_t instr_word = byteswap(*reinterpret_cast<const uint32_t*>(context.rom.data() + section_out.rom_addr + rel_offset - section_out.ram_addr));
|
|
rabbitizer::InstructionCpu instr{ instr_word, static_cast<uint32_t>(rel_offset) };
|
|
//context.rom section_out.rom_addr;
|
|
|
|
reloc_out.address = rel_offset;
|
|
reloc_out.symbol_index = rel_symbol;
|
|
reloc_out.type = static_cast<RecompPort::RelocType>(rel_type);
|
|
reloc_out.needs_relocation = false;
|
|
|
|
std::string rel_symbol_name;
|
|
ELFIO::Elf64_Addr rel_symbol_value;
|
|
ELFIO::Elf_Xword rel_symbol_size;
|
|
unsigned char rel_symbol_bind;
|
|
unsigned char rel_symbol_type;
|
|
ELFIO::Elf_Half rel_symbol_section_index;
|
|
unsigned char rel_symbol_other;
|
|
|
|
bool found_rel_symbol = symbol_accessor.get_symbol(
|
|
rel_symbol, rel_symbol_name, rel_symbol_value, rel_symbol_size, rel_symbol_bind, rel_symbol_type, rel_symbol_section_index, rel_symbol_other);
|
|
|
|
reloc_out.target_section = rel_symbol_section_index;
|
|
|
|
bool rel_needs_relocation = false;
|
|
|
|
if (rel_symbol_section_index < context.sections.size()) {
|
|
rel_needs_relocation = context.sections[rel_symbol_section_index].relocatable;
|
|
}
|
|
|
|
// Reloc pairing, see MIPS System V ABI documentation page 4-18 (https://refspecs.linuxfoundation.org/elf/mipsabi.pdf)
|
|
if (reloc_out.type == RecompPort::RelocType::R_MIPS_LO16) {
|
|
if (prev_hi) {
|
|
if (prev_hi_symbol != rel_symbol) {
|
|
fmt::print(stderr, "[WARN] Paired HI16 and LO16 relocations have different symbols\n"
|
|
" LO16 reloc index {} in section {} referencing symbol {} with offset 0x{:08X}\n",
|
|
i, section_out.name, reloc_out.symbol_index, reloc_out.address);
|
|
}
|
|
uint32_t rel_immediate = instr.getProcessedImmediate();
|
|
uint32_t full_immediate = (prev_hi_immediate << 16) + (int16_t)rel_immediate;
|
|
|
|
|
|
// Set this and the previous HI16 relocs' relocated addresses
|
|
section_out.relocs[i - 1].target_address = full_immediate;
|
|
reloc_out.target_address = full_immediate;
|
|
}
|
|
} else {
|
|
if (prev_hi) {
|
|
fmt::print(stderr, "Unpaired HI16 reloc index {} in section {} referencing symbol {} with offset 0x{:08X}\n",
|
|
i - 1, section_out.name, section_out.relocs[i - 1].symbol_index, section_out.relocs[i - 1].address);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (reloc_out.type == RecompPort::RelocType::R_MIPS_HI16) {
|
|
uint32_t rel_immediate = instr.getProcessedImmediate();
|
|
prev_hi = true;
|
|
prev_hi_immediate = rel_immediate;
|
|
prev_hi_symbol = rel_symbol;
|
|
} else {
|
|
prev_hi = false;
|
|
}
|
|
|
|
if (reloc_out.type == RecompPort::RelocType::R_MIPS_32) {
|
|
// Nothing to do here
|
|
}
|
|
}
|
|
|
|
// Sort this section's relocs by address, which allows for binary searching and more efficient iteration during recompilation.
|
|
// This is safe to do as the entire full_immediate in present in relocs due to the pairing that was done earlier, so the HI16 does not
|
|
// need to directly preceed the matching LO16 anymore.
|
|
std::sort(section_out.relocs.begin(), section_out.relocs.end(),
|
|
[](const RecompPort::Reloc& a, const RecompPort::Reloc& b) {
|
|
return a.address < b.address;
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
return symtab_section;
|
|
}
|
|
|
|
template<typename Iterator, typename Pred, typename Operation> void
|
|
for_each_if(Iterator begin, Iterator end, Pred p, Operation op) {
|
|
for (; begin != end; begin++) {
|
|
if (p(*begin)) {
|
|
op(*begin);
|
|
}
|
|
}
|
|
}
|
|
|
|
void analyze_sections(RecompPort::Context& context, const ELFIO::elfio& elf_file) {
|
|
std::vector<RecompPort::Section*> executable_sections{};
|
|
|
|
executable_sections.reserve(context.executable_section_count);
|
|
|
|
for_each_if(context.sections.begin(), context.sections.end(),
|
|
[](const RecompPort::Section& section) {
|
|
return section.executable && section.rom_addr >= 0x1000;
|
|
},
|
|
[&](RecompPort::Section& section) {
|
|
executable_sections.push_back(§ion);
|
|
}
|
|
);
|
|
|
|
std::sort(executable_sections.begin(), executable_sections.end(),
|
|
[](const RecompPort::Section* a, const RecompPort::Section* b) {
|
|
return a->ram_addr < b->ram_addr;
|
|
}
|
|
);
|
|
}
|
|
|
|
bool read_list_file(const std::filesystem::path& filename, std::unordered_set<std::string>& entries_out) {
|
|
std::ifstream input_file{ filename };
|
|
if (!input_file.good()) {
|
|
return false;
|
|
}
|
|
|
|
std::string entry;
|
|
|
|
while (input_file >> entry) {
|
|
entries_out.emplace(std::move(entry));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int argc, char** argv) {
|
|
auto exit_failure = [] (const std::string& error_str) {
|
|
fmt::print(stderr, error_str);
|
|
std::exit(EXIT_FAILURE);
|
|
};
|
|
|
|
if (argc != 2) {
|
|
fmt::print("Usage: {} [config file]\n", argv[0]);
|
|
std::exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
const char* config_path = argv[1];
|
|
|
|
RecompPort::Config config{ config_path };
|
|
if (!config.good()) {
|
|
exit_failure(fmt::format("Failed to load config file: {}\n", config_path));
|
|
}
|
|
|
|
ELFIO::elfio elf_file;
|
|
RabbitizerConfig_Cfg.pseudos.pseudoMove = false;
|
|
RabbitizerConfig_Cfg.pseudos.pseudoBeqz = false;
|
|
RabbitizerConfig_Cfg.pseudos.pseudoBnez = false;
|
|
RabbitizerConfig_Cfg.pseudos.pseudoNot = false;
|
|
|
|
std::unordered_set<std::string> relocatable_sections{};
|
|
|
|
if (!config.relocatable_sections_path.empty()) {
|
|
if (!read_list_file(config.relocatable_sections_path, relocatable_sections)) {
|
|
exit_failure("Failed to load the relocatable section list file: " + std::string(argv[4]) + "\n");
|
|
}
|
|
}
|
|
|
|
if (!elf_file.load(config.elf_path.string())) {
|
|
exit_failure("Failed to load provided elf file\n");
|
|
}
|
|
|
|
if (elf_file.get_class() != ELFIO::ELFCLASS32) {
|
|
exit_failure("Incorrect elf class\n");
|
|
}
|
|
|
|
if (elf_file.get_encoding() != ELFIO::ELFDATA2MSB) {
|
|
exit_failure("Incorrect endianness\n");
|
|
}
|
|
|
|
RecompPort::Context context{ elf_file };
|
|
context.relocatable_sections = std::move(relocatable_sections);
|
|
|
|
// Read all of the sections in the elf and look for the symbol table section
|
|
ELFIO::section* symtab_section = read_sections(context, elf_file);
|
|
|
|
// Search the sections to see if any are overlays or TLB-mapped
|
|
analyze_sections(context, elf_file);
|
|
|
|
// If no symbol table was found then exit
|
|
if (symtab_section == nullptr) {
|
|
exit_failure("No symbol table section found\n");
|
|
}
|
|
|
|
// Read all of the symbols in the elf and look for the entrypoint function
|
|
bool found_entrypoint_func = read_symbols(context, elf_file, symtab_section, config.entrypoint);
|
|
|
|
if (!found_entrypoint_func) {
|
|
exit_failure("Could not find entrypoint function\n");
|
|
}
|
|
|
|
fmt::print("Function count: {}\n", context.functions.size());
|
|
|
|
std::ofstream lookup_file{ config.output_func_path / "lookup.cpp" };
|
|
std::ofstream func_header_file{ config.output_func_path / "funcs.h" };
|
|
|
|
fmt::print(lookup_file,
|
|
//"#include <utility>\n"
|
|
"#include \"recomp.h\"\n"
|
|
//"#include \"funcs.h\"\n"
|
|
"\n"
|
|
//"std::pair<uint32_t, recomp_func_t*> funcs[] {{\n"
|
|
);
|
|
|
|
fmt::print(func_header_file,
|
|
"#include \"recomp.h\"\n"
|
|
"\n"
|
|
"#ifdef __cplusplus\n"
|
|
"extern \"C\" {{\n"
|
|
"#endif\n"
|
|
"\n"
|
|
);
|
|
|
|
std::vector<std::vector<uint32_t>> static_funcs_by_section{ context.sections.size() };
|
|
|
|
fmt::print("Working dir: {}\n", std::filesystem::current_path().string());
|
|
|
|
//#pragma omp parallel for
|
|
for (size_t i = 0; i < context.functions.size(); i++) {
|
|
const auto& func = context.functions[i];
|
|
|
|
if (!func.ignored && func.words.size() != 0) {
|
|
fmt::print(func_header_file,
|
|
"void {}(uint8_t* rdram, recomp_context* ctx);\n", func.name);
|
|
//fmt::print(lookup_file,
|
|
// " {{ 0x{:08X}u, {} }},\n", func.vram, func.name);
|
|
if (RecompPort::recompile_function(context, func, config.output_func_path / (func.name + ".c"), static_funcs_by_section) == false) {
|
|
//lookup_file.clear();
|
|
fmt::print(stderr, "Error recompiling {}\n", func.name);
|
|
std::exit(EXIT_FAILURE);
|
|
}
|
|
} else if (func.reimplemented) {
|
|
fmt::print(func_header_file,
|
|
"void {}(uint8_t* rdram, recomp_context* ctx);\n", func.name);
|
|
//fmt::print(lookup_file,
|
|
// " {{ 0x{:08X}u, {} }},\n", func.vram, func.name);
|
|
}
|
|
}
|
|
|
|
for (size_t section_index = 0; section_index < context.sections.size(); section_index++) {
|
|
auto& section = context.sections[section_index];
|
|
auto& section_funcs = section.function_addrs;
|
|
|
|
// Sort the section's functions
|
|
std::sort(section_funcs.begin(), section_funcs.end());
|
|
// Sort and deduplicate the static functions via a set
|
|
std::set<uint32_t> statics_set{ static_funcs_by_section[section_index].begin(), static_funcs_by_section[section_index].end() };
|
|
std::vector<uint32_t> section_statics{};
|
|
section_statics.assign(statics_set.begin(), statics_set.end());
|
|
|
|
size_t closest_func_index = 0;
|
|
for (size_t static_func_index = 0; static_func_index < section_statics.size(); static_func_index++) {
|
|
uint32_t static_func_addr = section_statics[static_func_index];
|
|
// Search for the closest function
|
|
while (section_funcs[closest_func_index] < static_func_addr && closest_func_index < section_funcs.size()) {
|
|
closest_func_index++;
|
|
}
|
|
|
|
// Determine the end of this static function
|
|
uint32_t cur_func_end = static_cast<uint32_t>(section.size + section.ram_addr);
|
|
|
|
// Check if there's a nonstatic function after this one
|
|
if (closest_func_index < section_funcs.size()) {
|
|
// If so, use that function's address as the end of this one
|
|
cur_func_end = section_funcs[closest_func_index];
|
|
}
|
|
|
|
uint32_t next_static_index = static_func_index + 1;
|
|
// Check if there's a known static function after this one
|
|
if (next_static_index < section_statics.size()) {
|
|
// If so, check if it's before the current end address
|
|
if (section_statics[next_static_index] < cur_func_end) {
|
|
cur_func_end = section_statics[next_static_index];
|
|
}
|
|
}
|
|
|
|
uint32_t rom_addr = static_cast<uint32_t>(static_func_addr - section.ram_addr + section.rom_addr);
|
|
const uint32_t* func_rom_start = reinterpret_cast<const uint32_t*>(context.rom.data() + rom_addr);
|
|
|
|
RecompPort::Function func {
|
|
static_func_addr,
|
|
rom_addr,
|
|
std::span{ func_rom_start, (cur_func_end - static_func_addr) / sizeof(uint32_t) },
|
|
fmt::format("static_{}_{:08X}", section_index, static_func_addr),
|
|
static_cast<ELFIO::Elf_Half>(section_index),
|
|
false
|
|
};
|
|
|
|
fmt::print(func_header_file,
|
|
"void {}(uint8_t* rdram, recomp_context* ctx);\n", func.name);
|
|
//fmt::print(lookup_file,
|
|
// " {{ 0x{:08X}u, {} }},\n", func.vram, func.name);
|
|
if (RecompPort::recompile_function(context, func, config.output_func_path / (func.name + ".c"), static_funcs_by_section) == false) {
|
|
//lookup_file.clear();
|
|
fmt::print(stderr, "Error recompiling {}\n", func.name);
|
|
std::exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
|
|
fmt::print(lookup_file,
|
|
//"}};\n"
|
|
//"extern const size_t num_funcs = sizeof(funcs) / sizeof(funcs[0]);\n"
|
|
//"\n"
|
|
"gpr get_entrypoint_address() {{ return (gpr)(int32_t)0x{:08X}u; }}\n"
|
|
"\n"
|
|
"const char* get_rom_name() {{ return \"{}\"; }}\n"
|
|
"\n",
|
|
config.entrypoint,
|
|
config.elf_path.filename().replace_extension(".z64").string()
|
|
);
|
|
|
|
fmt::print(func_header_file,
|
|
"\n"
|
|
"#ifdef __cplusplus\n"
|
|
"}}\n"
|
|
"#endif\n"
|
|
);
|
|
|
|
{
|
|
std::ofstream overlay_file(config.output_func_path / "recomp_overlays.inl");
|
|
std::string section_load_table = "static SectionTableEntry section_table[] = {\n";
|
|
|
|
fmt::print(overlay_file,
|
|
"#include \"recomp.h\"\n"
|
|
"#include \"funcs.h\"\n"
|
|
"#include \"sections.h\"\n"
|
|
"\n"
|
|
);
|
|
|
|
for (size_t section_index = 0; section_index < context.sections.size(); section_index++) {
|
|
const auto& section = context.sections[section_index];
|
|
const auto& section_funcs = context.section_functions[section_index];
|
|
|
|
if (!section_funcs.empty()) {
|
|
std::string_view section_name_trimmed{ section.name };
|
|
|
|
while (section_name_trimmed[0] == '.') {
|
|
section_name_trimmed.remove_prefix(1);
|
|
}
|
|
|
|
std::string section_funcs_array_name = fmt::format("section_{}_{}_funcs", section_index, section_name_trimmed);
|
|
|
|
section_load_table += fmt::format(" {{ .rom_addr = 0x{0:08X}, .ram_addr = 0x{1:08X}, .size = 0x{2:08X}, .funcs = {3}, .num_funcs = ARRLEN({3}), .index = {4} }},\n",
|
|
section.rom_addr, section.ram_addr, section.size, section_funcs_array_name, section_index);
|
|
|
|
fmt::print(overlay_file, "static FuncEntry {}[] = {{\n", section_funcs_array_name);
|
|
|
|
for (size_t func_index : section_funcs) {
|
|
const auto& func = context.functions[func_index];
|
|
|
|
if (func.reimplemented || (!func.name.empty() && !func.ignored && func.words.size() != 0)) {
|
|
fmt::print(overlay_file, " {{ .func = {}, .offset = 0x{:08x} }},\n", func.name, func.rom - section.rom_addr);
|
|
}
|
|
}
|
|
|
|
fmt::print(overlay_file, "}};\n");
|
|
}
|
|
}
|
|
section_load_table += "};\n";
|
|
|
|
fmt::print(overlay_file, "{}", section_load_table);
|
|
|
|
fmt::print(overlay_file, "const size_t num_sections = {};\n", context.sections.size());
|
|
}
|
|
|
|
return 0;
|
|
}
|