System call to abort current process

Also includes:
* Corresponding additions to libcm.

Author: coderarjob

include/cm/cm.h

@@ -56,6 +56,11 @@ static inline void cm_process_kill (UINT code)
     syscall (OSIF_SYSCALL_KILL_PROCESS, code, 0, 0, 0, 0);
 }
 
+static inline void cm_process_abort (UINT code)
+{
+    syscall (OSIF_SYSCALL_ABORT_PROCESS, code, 0, 0, 0, 0);
+}
+
 static inline U32 cm_process_get_pid()
 {
     return (U32)syscall (OSIF_SYSCALL_PROCESS_GETPID, 0, 0, 0, 0, 0);

include/cm/osif.h

@@ -33,6 +33,7 @@ typedef enum OSIF_SYSCALLS {
     OSIF_SYSCALL_WINDOW_FLUSH_GRAPHICS     = 13,
     OSIF_SYSCALL_GET_OS_ERROR              = 14,
     OSIF_SYSCALL_GET_BOOTLOADED_FILE       = 15,
+    OSIF_SYSCALL_ABORT_PROCESS             = 16,
 } OSIF_SYSCALLS;
 
 typedef enum OSIF_ProcessEvents {

src/kernel/x86/syscalls.c

@@ -42,6 +42,7 @@ INT ksys_createProcess (SystemcallFrame frame, void* processStartAddress, SIZE b
                        KProcessFlags flags);
 void ksys_yieldProcess (SystemcallFrame frame, U32 ebx, U32 ecx, U32 edx, U32 esi, U32 edi);
 void ksys_killProcess (SystemcallFrame frame, UINT exitCode);
+void ksys_abortProcess (SystemcallFrame frame, UINT exitCode);
 bool ksys_processPopEvent (SystemcallFrame frame, OSIF_ProcessEvent* const e);
 U32 ksys_process_getPID (SystemcallFrame frame);
 U32 ksys_get_tickcount (SystemcallFrame frame);
@@ -110,6 +111,8 @@ void* g_syscall_table[] = {
 #else
     &s_handleInvalidSystemCall,      // 15
 #endif
+    //---------------------------
+    &ksys_abortProcess,              // 16
 };
 #pragma GCC diagnostic pop
 
@@ -277,6 +280,13 @@ void ksys_killProcess (SystemcallFrame frame, UINT exitCode)
     kprocess_exit ((U8)exitCode, false);
 }
 
+void ksys_abortProcess (SystemcallFrame frame, UINT exitCode)
+{
+    FUNC_ENTRY ("Frame return address: %x:%x, exit code: %x", frame.cs, frame.eip, exitCode);
+    (void)frame;
+    kprocess_exit ((U8)exitCode, true);
+}
+
 U32 ksys_process_getPID (SystemcallFrame frame)
 {
     FUNC_ENTRY ("Frame return address: %x:%x", frame.cs, frame.eip);