From 25ddcd1022032d5b0620cdd8fee5e336b6292742 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Thu, 2 May 2019 15:49:48 +0200
Subject: [PATCH] Kernel: Emit systrace events for exit, thread_exit and
 sigreturn.

Since these syscalls don't return to caller, we have to emit the trace
events manually.
---
 Kernel/Syscall.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Kernel/Syscall.cpp b/Kernel/Syscall.cpp
index 252773348fc..90fd031ed6a 100644
--- a/Kernel/Syscall.cpp
+++ b/Kernel/Syscall.cpp
@@ -115,11 +115,15 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
         return current->process().sys$gethostname((char*)arg1, (size_t)arg2);
     case Syscall::SC_exit:
         cli();
+        if (auto* tracer = current->process().tracer())
+            tracer->did_syscall(function, arg1, arg2, arg3, 0);
         current->process().sys$exit((int)arg1);
         ASSERT_NOT_REACHED();
         return 0;
     case Syscall::SC_exit_thread:
         cli();
+        if (auto* tracer = current->process().tracer())
+            tracer->did_syscall(function, arg1, arg2, arg3, 0);
         current->process().sys$exit_thread((int)arg1);
         ASSERT_NOT_REACHED();
         break;
@@ -170,6 +174,8 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
     case Syscall::SC_setgroups:
         return current->process().sys$setgroups((ssize_t)arg1, (const gid_t*)arg2);
     case Syscall::SC_sigreturn:
+        if (auto* tracer = current->process().tracer())
+            tracer->did_syscall(function, arg1, arg2, arg3, 0);
         current->process().sys$sigreturn();
         ASSERT_NOT_REACHED();
         return 0;