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Kernel: Emit systrace events for exit, thread_exit and sigreturn.

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Since these syscalls don't return to caller, we have to emit the trace
events manually.
This commit is contained in:
Andreas Kling 2019-05-02 15:49:48 +02:00
parent 4508287cb2
commit 25ddcd1022
1 changed files with 6 additions and 0 deletions
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6
Kernel/Syscall.cpp
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@ -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;