From ce6b26fadbd3b832434e5e65f3ce4c8d29a412ae Mon Sep 17 00:00:00 2001
From: Phi1ow <331962174+Phi1ow@users.noreply.github.com>
Date: Sun, 4 Oct 2026 23:12:52 +0200
Subject: [PATCH] feat(razor): implement the libSceRazorCpu CPU profiler stubs

libSceRazorCpu is the CPU-side instrumentation for the Razor capture tool. AnyPS5 does not host
that tool, so the instrumentation does nothing and succeeds, which is also what shadPS4 does:

- sceRazorCpuIsCapturing -> 0 (no capture is in progress, so titles skip their profiling paths)
- sceRazorCpuJobManagerDispatch / sceRazorCpuJobManagerJob / sceRazorCpuJobManagerSequence -> 0

These only feed the profiler; they do not affect execution. Adds a CMakeLists.txt so the library
can carry its guest test.

New test core/libs/tests/GuestRazorCpu.cpp checks the four return values; it fails on main (the
functions throw) and passes with the change.
---
 core/libs/prx/libSceRazorCpu/CMakeLists.txt | 20 ++++++++++++++++++
 core/libs/prx/libSceRazorCpu/Export.cpp     |  4 ----
 core/libs/tests/GuestRazorCpu.cpp           | 23 +++++++++++++++++++++
 3 files changed, 43 insertions(+), 4 deletions(-)
 create mode 100644 core/libs/prx/libSceRazorCpu/CMakeLists.txt
 create mode 100644 core/libs/tests/GuestRazorCpu.cpp

diff --git a/core/libs/prx/libSceRazorCpu/CMakeLists.txt b/core/libs/prx/libSceRazorCpu/CMakeLists.txt
new file mode 100644
index 000000000..2576a816d
--- /dev/null
+++ b/core/libs/prx/libSceRazorCpu/CMakeLists.txt
@@ -0,0 +1,20 @@
+add_library(libSceRazorCpu SHARED EXCLUDE_FROM_ALL Export.cpp)
+target_include_directories(libSceRazorCpu PRIVATE ${LIBS_INCLUDE_DIR})
+configure_windows_unwind(libSceRazorCpu)
+
+if(MINGW)
+    foreach(runtimeLinkFlag IN ITEMS -static-libgcc -static-libstdc++ -static)
+        string(REPLACE "${runtimeLinkFlag}" "" CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
+    endforeach()
+endif()
+
+if(BUILD_TESTING)
+    add_test_executable(guest_razor_cpu_tests ${LIBS_INCLUDE_DIR}/tests/GuestRazorCpu.cpp)
+    target_include_directories(guest_razor_cpu_tests PRIVATE ${LIBS_INCLUDE_DIR})
+    target_link_libraries(guest_razor_cpu_tests PRIVATE libSceRazorCpu)
+    add_test(NAME guest_razor_cpu COMMAND guest_razor_cpu_tests)
+    if(WIN32)
+        set_tests_properties(guest_razor_cpu PROPERTIES ENVIRONMENT_MODIFICATION
+            "PATH=path_list_prepend:$<TARGET_FILE_DIR:libSceRazorCpu>")
+    endif()
+endif()
diff --git a/core/libs/prx/libSceRazorCpu/Export.cpp b/core/libs/prx/libSceRazorCpu/Export.cpp
index 27bfe2560..83a295d21 100644
--- a/core/libs/prx/libSceRazorCpu/Export.cpp
+++ b/core/libs/prx/libSceRazorCpu/Export.cpp
@@ -6,25 +6,21 @@
 extern "C" {
 
 uint32_t APS5_VABI sceRazorCpuIsCapturing(void) {
- NotImplemented_nid_no_patch(__func__);
  return 0;
 }
 
 int APS5_VABI sceRazorCpuJobManagerDispatch(const void* args) {
  (void)args;
- NotImplemented_nid_no_patch(__func__);
  return 0;
 }
 
 int APS5_VABI sceRazorCpuJobManagerJob(const void* args) {
  (void)args;
- NotImplemented_nid_no_patch(__func__);
  return 0;
 }
 
 int APS5_VABI sceRazorCpuJobManagerSequence(const void* args) {
  (void)args;
- NotImplemented_nid_no_patch(__func__);
  return 0;
 }
 
diff --git a/core/libs/tests/GuestRazorCpu.cpp b/core/libs/tests/GuestRazorCpu.cpp
new file mode 100644
index 000000000..2b966d8a6
--- /dev/null
+++ b/core/libs/tests/GuestRazorCpu.cpp
@@ -0,0 +1,23 @@
+#include "prx/libc/include/general/VabiMacros.hpp"
+#include <cstdint>
+#include <cstdlib>
+
+extern "C" {
+std::uint32_t APS5_VABI sceRazorCpuIsCapturing(void);
+int APS5_VABI sceRazorCpuJobManagerDispatch(const void* args);
+int APS5_VABI sceRazorCpuJobManagerJob(const void* args);
+int APS5_VABI sceRazorCpuJobManagerSequence(const void* args);
+}
+
+namespace {
+
+void Require(bool value) { if (!value) std::abort(); }
+
+}
+
+int main() {
+    Require(sceRazorCpuIsCapturing() == 0);
+    Require(sceRazorCpuJobManagerDispatch(nullptr) == 0);
+    Require(sceRazorCpuJobManagerJob(nullptr) == 0);
+    Require(sceRazorCpuJobManagerSequence(nullptr) == 0);
+}