From 325143360ae27803bb0f73a861d76fe044c6bab6 Mon Sep 17 00:00:00 2001
From: Stephen Miller <millerste004@gmail.com>
Date: Sat, 8 Mar 2025 13:26:02 -0600
Subject: [PATCH] Stubby implementation of sceSysmoduleGetModuleInfoForUnwind

---
 src/core/libraries/kernel/process.cpp   | 12 ------------
 src/core/libraries/kernel/process.h     | 14 ++++++++++++++
 src/core/libraries/system/sysmodule.cpp |  8 ++++++--
 src/core/libraries/system/sysmodule.h   |  2 +-
 4 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/src/core/libraries/kernel/process.cpp b/src/core/libraries/kernel/process.cpp
index 58628867a..8077fd148 100644
--- a/src/core/libraries/kernel/process.cpp
+++ b/src/core/libraries/kernel/process.cpp
@@ -85,18 +85,6 @@ s32 PS4_SYSV_ABI sceKernelDlsym(s32 handle, const char* symbol, void** addrp) {
     return ORBIS_OK;
 }
 
-static constexpr size_t ORBIS_DBG_MAX_NAME_LENGTH = 256;
-
-struct OrbisModuleInfoForUnwind {
-    u64 st_size;
-    std::array<char, ORBIS_DBG_MAX_NAME_LENGTH> name;
-    VAddr eh_frame_hdr_addr;
-    VAddr eh_frame_addr;
-    u64 eh_frame_size;
-    VAddr seg0_addr;
-    u64 seg0_size;
-};
-
 s32 PS4_SYSV_ABI sceKernelGetModuleInfoForUnwind(VAddr addr, int flags,
                                                  OrbisModuleInfoForUnwind* info) {
     if (flags >= 3) {
diff --git a/src/core/libraries/kernel/process.h b/src/core/libraries/kernel/process.h
index 0340a9793..c2adccf2c 100644
--- a/src/core/libraries/kernel/process.h
+++ b/src/core/libraries/kernel/process.h
@@ -15,6 +15,20 @@ int PS4_SYSV_ABI sceKernelIsNeoMode();
 
 int PS4_SYSV_ABI sceKernelGetCompiledSdkVersion(int* ver);
 
+static constexpr size_t ORBIS_DBG_MAX_NAME_LENGTH = 256;
+
+struct OrbisModuleInfoForUnwind {
+    u64 st_size;
+    std::array<char, ORBIS_DBG_MAX_NAME_LENGTH> name;
+    VAddr eh_frame_hdr_addr;
+    VAddr eh_frame_addr;
+    u64 eh_frame_size;
+    VAddr seg0_addr;
+    u64 seg0_size;
+};
+
+s32 PS4_SYSV_ABI sceKernelGetModuleInfoForUnwind(VAddr addr, s32 flags, OrbisModuleInfoForUnwind* info);
+
 void RegisterProcess(Core::Loader::SymbolsResolver* sym);
 
 } // namespace Libraries::Kernel
diff --git a/src/core/libraries/system/sysmodule.cpp b/src/core/libraries/system/sysmodule.cpp
index 350f1317b..05fb2193e 100644
--- a/src/core/libraries/system/sysmodule.cpp
+++ b/src/core/libraries/system/sysmodule.cpp
@@ -10,6 +10,7 @@
 #include "core/libraries/libs.h"
 #include "core/libraries/system/sysmodule.h"
 #include "core/libraries/system/system_error.h"
+#include "core/libraries/kernel/process.h"
 
 namespace Libraries::SysModule {
 
@@ -18,9 +19,12 @@ int PS4_SYSV_ABI sceSysmoduleGetModuleHandleInternal() {
     return ORBIS_OK;
 }
 
-int PS4_SYSV_ABI sceSysmoduleGetModuleInfoForUnwind() {
+s32 PS4_SYSV_ABI sceSysmoduleGetModuleInfoForUnwind(VAddr addr, s32 flags, void* info) {
     LOG_ERROR(Lib_SysModule, "(STUBBED) called");
-    return ORBIS_OK;
+    Kernel::OrbisModuleInfoForUnwind module_info;
+    module_info.st_size = 0x130;
+    s32 res = Kernel::sceKernelGetModuleInfoForUnwind(addr, flags, &module_info);
+    return res;
 }
 
 int PS4_SYSV_ABI sceSysmoduleIsCalledFromSysModule() {
diff --git a/src/core/libraries/system/sysmodule.h b/src/core/libraries/system/sysmodule.h
index 3630fb58e..dfbdca162 100644
--- a/src/core/libraries/system/sysmodule.h
+++ b/src/core/libraries/system/sysmodule.h
@@ -152,7 +152,7 @@ enum class OrbisSysModuleInternal : u32 {
 };
 
 int PS4_SYSV_ABI sceSysmoduleGetModuleHandleInternal();
-int PS4_SYSV_ABI sceSysmoduleGetModuleInfoForUnwind();
+s32 PS4_SYSV_ABI sceSysmoduleGetModuleInfoForUnwind(VAddr addr, s32 flags, void* info);
 int PS4_SYSV_ABI sceSysmoduleIsCalledFromSysModule();
 int PS4_SYSV_ABI sceSysmoduleIsCameraPreloaded();
 int PS4_SYSV_ABI sceSysmoduleIsLoaded(OrbisSysModule id);