From 209373b1f5770dc175e06996a152df6484f59af2 Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal@nekernel.org>
Date: Fri, 22 Aug 2025 15:39:40 +0200
Subject: feat: implement `CompilerKitDylibTraits` container for future and
 current frontend tools.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>
---
 dev/CompilerKit/utils/DylibHelpers.h | 50 ++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'dev/CompilerKit/utils')

diff --git a/dev/CompilerKit/utils/DylibHelpers.h b/dev/CompilerKit/utils/DylibHelpers.h
index 1ae7c03..31e0b68 100644
--- a/dev/CompilerKit/utils/DylibHelpers.h
+++ b/dev/CompilerKit/utils/DylibHelpers.h
@@ -7,7 +7,57 @@
 #pragma once
 
 #include <CompilerKit/Defines.h>
+#include <mutex>
 #include <dlfcn.h>
 
+struct CompilerKitDylibTraits;
+
 typedef Int32 (*CompilerKitEntrypoint)(Int32 argc, Char const* argv[]);
 typedef VoidPtr CompilerKitDylib;
+
+struct CompilerKitDylibTraits final {
+  CompilerKitDylib fDylib{nullptr};
+  CompilerKitEntrypoint fEntrypoint{nullptr};
+  std::mutex fMutex;
+
+  CompilerKitDylibTraits& operator()(const Char* path, const Char* fEntrypoint) {
+    std::lock_guard<std::mutex> lock(this->fMutex);
+    
+    if (!path || !fEntrypoint) return *this;
+
+    if (this->fDylib) {
+      dlclose(this->fDylib);
+      this->fDylib = nullptr;
+    }
+
+    this->fDylib = dlopen(path, RTLD_LAZY);
+
+    if (!this->fDylib) {
+      return *this;
+    }
+
+    this->fEntrypoint = (CompilerKitEntrypoint)dlsym(this->fDylib, fEntrypoint);
+
+    if (!this->fEntrypoint) {
+      dlclose(this->fDylib);
+      this->fDylib = nullptr;
+
+      return *this;
+    }
+
+    return *this;
+  }
+
+  NECTI_COPY_DELETE(CompilerKitDylibTraits);
+
+  CompilerKitDylibTraits() = default;
+
+  ~CompilerKitDylibTraits() {
+    if (this->fDylib) {
+      dlclose(this->fDylib);
+      this->fDylib = nullptr;
+    }
+
+    this->fEntrypoint = nullptr;
+  }
+};
-- 
cgit v1.2.3


From bdc13bdc0a163d6839ed19a6077e61c162220826 Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal@nekernel.org>
Date: Fri, 22 Aug 2025 15:46:57 +0200
Subject: feat: c++abi: introduce atexit ptr to cleanup data when exiting
 program.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>
---
 dev/CompilerKit/utils/DylibHelpers.h | 10 +++++-----
 dev/LibC++/base_process.h            | 12 +++++++++++-
 tools/pef-amd64-cxxdrv.cc            |  2 +-
 3 files changed, 17 insertions(+), 7 deletions(-)

(limited to 'dev/CompilerKit/utils')

diff --git a/dev/CompilerKit/utils/DylibHelpers.h b/dev/CompilerKit/utils/DylibHelpers.h
index 31e0b68..fede406 100644
--- a/dev/CompilerKit/utils/DylibHelpers.h
+++ b/dev/CompilerKit/utils/DylibHelpers.h
@@ -7,8 +7,8 @@
 #pragma once
 
 #include <CompilerKit/Defines.h>
-#include <mutex>
 #include <dlfcn.h>
+#include <mutex>
 
 struct CompilerKitDylibTraits;
 
@@ -16,13 +16,13 @@ typedef Int32 (*CompilerKitEntrypoint)(Int32 argc, Char const* argv[]);
 typedef VoidPtr CompilerKitDylib;
 
 struct CompilerKitDylibTraits final {
-  CompilerKitDylib fDylib{nullptr};
+  CompilerKitDylib      fDylib{nullptr};
   CompilerKitEntrypoint fEntrypoint{nullptr};
-  std::mutex fMutex;
+  std::mutex            fMutex;
 
   CompilerKitDylibTraits& operator()(const Char* path, const Char* fEntrypoint) {
     std::lock_guard<std::mutex> lock(this->fMutex);
-    
+
     if (!path || !fEntrypoint) return *this;
 
     if (this->fDylib) {
@@ -36,7 +36,7 @@ struct CompilerKitDylibTraits final {
       return *this;
     }
 
-    this->fEntrypoint = (CompilerKitEntrypoint)dlsym(this->fDylib, fEntrypoint);
+    this->fEntrypoint = (CompilerKitEntrypoint) dlsym(this->fDylib, fEntrypoint);
 
     if (!this->fEntrypoint) {
       dlclose(this->fDylib);
diff --git a/dev/LibC++/base_process.h b/dev/LibC++/base_process.h
index 126ac60..900198f 100644
--- a/dev/LibC++/base_process.h
+++ b/dev/LibC++/base_process.h
@@ -12,7 +12,10 @@
 /// @param code the exit code.
 /// @return the return > 0 for non successful.
 extern "C" int exit_(int code);
-extern "C" int signal_(int code);
+
+/// @brief CRT signal handler.
+/// @param code the signal code.
+extern "C" void signal_(int code);
 
 /// @brief Standard C++ namespace
 namespace std::base_process {
@@ -21,7 +24,14 @@ inline int signal(int code) {
   return -1;
 }
 
+extern "C" void (*__atexit_lst_ptr)(void);
+extern "C" size_t __atexit_lst_cnt;
+
 inline int exit(int code) {
+  for (auto i = 0UL; i < __atexit_lst_cnt; ++i) {
+    __atexit_lst_ptr();
+  }
+
   exit_(code);
   return -1;
 }
diff --git a/tools/pef-amd64-cxxdrv.cc b/tools/pef-amd64-cxxdrv.cc
index 515f6ad..ae1653e 100644
--- a/tools/pef-amd64-cxxdrv.cc
+++ b/tools/pef-amd64-cxxdrv.cc
@@ -25,7 +25,7 @@ Int32 main(Int32 argc, Char const* argv[]) {
   CompilerKitDylibTraits dylib;
   dylib(kPath, kSymbol);
 
-  CompilerKitEntrypoint entrypoint_cxx = (CompilerKitEntrypoint)dylib.fEntrypoint;
+  CompilerKitEntrypoint entrypoint_cxx = (CompilerKitEntrypoint) dylib.fEntrypoint;
 
   if (!entrypoint_cxx) {
     kStdOut;
-- 
cgit v1.2.3