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Kernel: Make Syscalls/ptrace.cpp buildable for aarch64

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This commit is contained in:
Timon Kruiper 2023-01-25 16:12:08 +01:00 committed by Linus Groh
parent cab725cdfb
commit a146a19636
Notes: sideshowbarker 2024-07-18 03:23:00 +09:00 
Author: https://github.com/FireFox317
Commit: https://github.com/SerenityOS/serenity/commit/a146a19636
Pull-request: https://github.com/SerenityOS/serenity/pull/17183
Reviewed-by: https://github.com/kleinesfilmroellchen ✅
Reviewed-by: https://github.com/nico ✅
3 changed files with 17 additions and 7 deletions
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5
Kernel/Arch/aarch64/Dummy.cpp
View file

@ -16,11 +16,6 @@ namespace Kernel {
ProcessID g_init_pid { 0 };
bool Process::has_tracee_thread(ProcessID)
{
TODO_AARCH64();
}
ErrorOr<void> Process::exec(NonnullOwnPtr<KString>, NonnullOwnPtrVector<KString>, NonnullOwnPtrVector<KString>, Thread*&, u32&, int)
{
TODO_AARCH64();

2
Kernel/CMakeLists.txt
View file

@ -301,6 +301,7 @@ set(KERNEL_SOURCES
Syscalls/prctl.cpp
Syscalls/process.cpp
Syscalls/profiling.cpp
Syscalls/ptrace.cpp
Syscalls/purge.cpp
Syscalls/read.cpp
Syscalls/readlink.cpp
@ -401,7 +402,6 @@ if ("${SERENITY_ARCH}" STREQUAL "x86_64")
Syscalls/execve.cpp
Syscalls/fork.cpp
Syscalls/mmap.cpp
Syscalls/ptrace.cpp
Syscalls/sigaction.cpp
)

17
Kernel/Syscalls/ptrace.cpp
View file

@ -107,7 +107,7 @@ static ErrorOr<FlatPtr> handle_ptrace(Kernel::Syscall::SC_ptrace_params const& p
auto& peer_saved_registers = peer->get_register_dump_from_stack();
// Verify that the saved registers are in usermode context
if ((peer_saved_registers.cs & 0x03) != 3)
if (peer_saved_registers.previous_mode() == ExecutionMode::User)
return EFAULT;
tracer->set_regs(regs);
@ -229,6 +229,7 @@ ErrorOr<void> Process::poke_user_data(Userspace<FlatPtr*> address, FlatPtr data)
ErrorOr<FlatPtr> Thread::peek_debug_register(u32 register_index)
{
#if ARCH(X86_64)
FlatPtr data;
switch (register_index) {
case 0:
@ -253,10 +254,17 @@ ErrorOr<FlatPtr> Thread::peek_debug_register(u32 register_index)
return EINVAL;
}
return data;
#elif ARCH(AARCH64)
(void)register_index;
TODO_AARCH64();
#else
# error "Unknown architecture"
#endif
}
ErrorOr<void> Thread::poke_debug_register(u32 register_index, FlatPtr data)
{
#if ARCH(X86_64)
switch (register_index) {
case 0:
m_debug_register_state.dr0 = data;
@ -277,6 +285,13 @@ ErrorOr<void> Thread::poke_debug_register(u32 register_index, FlatPtr data)
return EINVAL;
}
return {};
#elif ARCH(AARCH64)
(void)register_index;
(void)data;
TODO_AARCH64();
#else
# error "Unknown architecture"
#endif
}
}