mirror of
https://github.com/shadps4-emu/shadPS4.git
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f1ce6fe669
- Adds a python script to generate the tables, to avoid std::map init - Generates stub "slots" to provide runtime information when a stub is called - Provides fallback for unknown stubs
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
#include "Stubs.h"
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#include "Util/aerolib.h"
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#include "Util/log.h"
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// Helper to provide stub implementations for missing functions
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//
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// This works by pre-compiling generic stub functions ("slots"), and then
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// on lookup, setting up the nid_entry they are matched with
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//
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// If it runs out of stubs with name information, it will return
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// a default implemetnation without function name details
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// Up to 512, larger values lead to more resolve stub slots
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// and to longer compile / CI times
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//
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// Must match STUBS_LIST define
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#define MAX_STUBS 128
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u64 UnresolvedStub() {
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LOG_ERROR("Unknown Stub: called, returning zero\n");
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return 0;
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}
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static u64 UnknownStub() {
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LOG_ERROR("Unknown Stub: called, returning zero\n");
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return 0;
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}
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static aerolib::nid_entry* stub_nids[MAX_STUBS];
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template <int stub_index>
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static u64 CommonStub() {
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auto entry = stub_nids[stub_index];
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LOG_ERROR("Stub: {} ({}) called, returning zero\n", entry->name, entry->nid);
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return 0;
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}
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static u32 UsedStubEntries;
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#define XREP_1(x) \
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&CommonStub<x>,
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#define XREP_2(x) XREP_1(x) XREP_1(x + 1)
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#define XREP_4(x) XREP_2(x) XREP_2(x + 2)
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#define XREP_8(x) XREP_4(x) XREP_4(x + 4)
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#define XREP_16(x) XREP_8(x) XREP_8(x + 8)
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#define XREP_32(x) XREP_16(x) XREP_16(x + 16)
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#define XREP_64(x) XREP_32(x) XREP_32(x + 32)
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#define XREP_128(x) XREP_64(x) XREP_64(x + 64)
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#define XREP_256(x) XREP_128(x) XREP_128(x + 128)
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#define XREP_512(x) XREP_256(x) XREP_256(x + 256)
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#define STUBS_LIST XREP_128(0)
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static u64 (*stub_handlers[MAX_STUBS])() = {
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STUBS_LIST
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};
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u64 GetStub(const char* nid) {
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auto entry = aerolib::find_by_nid(nid);
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if (!entry || UsedStubEntries >= MAX_STUBS) {
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return (u64)&UnknownStub;
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} else {
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stub_nids[UsedStubEntries] = entry;
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return (u64)stub_handlers[UsedStubEntries++];
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}
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} |