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UserspaceEmulator: Add support for watch_file

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Simon Danner 2020-11-21 18:15:40 +01:00 • committed by Andreas Kling
parent 178190ab52
commit 09b095e62a
2 changed files with 9 additions and 0 deletions
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8
DevTools/UserspaceEmulator/Emulator.cpp
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@ -400,6 +400,8 @@ u32 Emulator::virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3)
return virt$set_thread_name(arg1, arg2, arg3); return virt$set_thread_name(arg1, arg2, arg3);
case SC_setsid: case SC_setsid:
return virt$setsid(); return virt$setsid();
case SC_watch_file:
return virt$watch_file(arg1, arg2);
default: default:
reportln("\n=={}== \033[31;1mUnimplemented syscall: {}\033[0m, {:p}", getpid(), Syscall::to_string((Syscall::Function)function), function); reportln("\n=={}== \033[31;1mUnimplemented syscall: {}\033[0m, {:p}", getpid(), Syscall::to_string((Syscall::Function)function), function);
dump_backtrace(); dump_backtrace();
@ -1493,4 +1495,10 @@ pid_t Emulator::virt$setsid()
return syscall(SC_setsid); return syscall(SC_setsid);
} }
int Emulator::virt$watch_file(FlatPtr user_path_addr, size_t path_length)
{
auto user_path = mmu().copy_buffer_from_vm(user_path_addr, path_length);
return syscall(SC_watch_file, user_path.data(), user_path.size());
}
} }

1
DevTools/UserspaceEmulator/Emulator.h
View file

@ -155,6 +155,7 @@ private:
int virt$sched_getparam(pid_t, FlatPtr); int virt$sched_getparam(pid_t, FlatPtr);
int virt$set_thread_name(pid_t, FlatPtr, size_t); int virt$set_thread_name(pid_t, FlatPtr, size_t);
pid_t virt$setsid(); pid_t virt$setsid();
int virt$watch_file(FlatPtr, size_t);
FlatPtr allocate_vm(size_t size, size_t alignment); FlatPtr allocate_vm(size_t size, size_t alignment);