FIX/IMP: A set of fixes and new features. (MHR-40, 46 and 47 related)

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>

3 files changed, 74 insertions, 52 deletions

diff --git a/dev/crt/src/hal/x86/base_alloc.cxx b/dev/crt/src/hal/x86/base_alloc.cxx
new file mode 100644
index 00000000..effb6c94
--- /dev/null
+++ b/dev/crt/src/hal/x86/base_alloc.cxx
@@ -0,0 +1,55 @@
+/* -------------------------------------------
+
+	Copyright ZKA Technologies.
+
+------------------------------------------- */
+
+#include <crt/base_alloc.hxx>
+#include <crt/base_exception.hxx>
+
+#define kAllocSyscallId "mov $10, %%r9\n\t"
+#define kFreeSyscallId	"mov $11, %%r9\n\t"
+
+void* operator new(size_t length)
+{
+	void* ptr = nullptr;
+
+	// do syscall according to PEF convention.
+	asm("mov %0, %%r8\n\t" kAllocSyscallId
+		"syscall"
+		: "=r"(ptr));
+
+	if (!ptr)
+	   std::__throw_bad_alloc();
+
+	return ptr;
+}
+
+void* operator new[](size_t length)
+{
+	ptr_type ptr = nullptr;
+
+	// do syscall according to PEF convention.
+	asm("mov %0, %%r8\n\t" kAllocSyscallId
+		"syscall"
+		: "=r"(ptr));
+
+	if (!ptr)
+		   std::__throw_bad_alloc();
+
+	return ptr;
+}
+
+void operator delete(void* ptr) noexcept
+{
+	asm("mov %0, %%r8\n\t" kFreeSyscallId
+		"syscall"
+		: "=r"(ptr));
+}
+
+void operator delete[](void* ptr) noexcept
+{
+	asm("mov %0, %%r8\n\t" kFreeSyscallId
+		"syscall"
+		: "=r"(ptr));
+}
diff --git a/dev/crt/src/hal/x86/exit.cxx b/dev/crt/src/hal/x86/exit.cxx
new file mode 100644
index 00000000..d593adf9
--- /dev/null
+++ b/dev/crt/src/hal/x86/exit.cxx
@@ -0,0 +1,19 @@
+/* -------------------------------------------

+

+	Copyright ZKA Technologies.

+

+------------------------------------------- */

+

+#include <crt/exit.hxx>

+

+#define kAllocSyscallId "mov $12, %%r9\n\t"

+

+/// @note Just here for building.

+extern "C" int exit(int code)

+{

+	asm("mov 0, %%r8\n\t" kAllocSyscallId

+		"syscall"

+		: "=r"(code));

+

+	return 1;

+}

diff --git a/dev/crt/src/new+delete.cxx b/dev/crt/src/new+delete.cxx
deleted file mode 100644
index 1241bf66..00000000
--- a/dev/crt/src/new+delete.cxx
+++ /dev/null
@@ -1,52 +0,0 @@
-/* -------------------------------------------
-
-	Copyright ZKA Technologies.
-
-------------------------------------------- */
-
-#include <crt/base_alloc.hxx>
-
-#define kAllocSyscallId "mov $10, %%r9\n\t"
-#define kFreeSyscallId  "mov $11, %%r9\n\t"
-
-void* operator new(size_t length)
-{
-    void* ptr = nullptr;
-
-    // do syscall according to PEF convention.
-    asm ("mov %0, %%r8\n\t"
-        kAllocSyscallId
-        "syscall"
-        : "=r" (ptr));
-
-    return ptr;
-}
-
-void* operator new[](size_t length)
-{
-    ptr_type ptr = nullptr;
-
-    // do syscall according to PEF convention.
-    asm ("mov %0, %%r8\n\t"
-        kAllocSyscallId
-        "syscall"
-        : "=r" (ptr));
-
-    return ptr;
-}
-
-void operator delete(void* ptr) noexcept
-{
-    asm ("mov %0, %%r8\n\t"
-        kFreeSyscallId
-        "syscall"
-        : "=r" (ptr));
-}
-
-void operator delete[](void* ptr) noexcept
-{
-    asm ("mov %0, %%r8\n\t"
-        kFreeSyscallId
-        "syscall"
-        : "=r" (ptr));
-}