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[zion] Cleanup syscall entrance.

This commit is contained in:
Drew Galbraith 2023-06-20 15:40:21 -07:00
parent d60b2bdc61
commit 93cf8f2740
2 changed files with 3 additions and 14 deletions
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15
zion/syscall/syscall.cpp
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@ -3,14 +3,6 @@
#include <stdint.h>
#include "common/msr.h"
#include "debug/debug.h"
#include "include/zcall.h"
#include "interrupt/interrupt.h"
#include "memory/physical_memory.h"
#include "object/channel.h"
#include "object/port.h"
#include "object/process.h"
#include "scheduler/process_manager.h"
#include "scheduler/scheduler.h"
#include "syscall/address_space.h"
#include "syscall/capability.h"
@ -20,7 +12,6 @@
#include "syscall/port.h"
#include "syscall/process.h"
#include "syscall/thread.h"
#include "usr/zcall_internal.h"
#define EFER 0xC0000080
#define STAR 0xC0000081
@ -69,8 +60,7 @@ z_err_t ValidateCap(const RefPtr<Capability>& cap, uint64_t permissions) {
case kZion##name: \
return name(reinterpret_cast<Z##name##Req*>(req));
extern "C" z_err_t SyscallHandler(uint64_t call_id, void* req, void* resp) {
RefPtr<Thread> thread = gScheduler->CurrentThread();
extern "C" z_err_t SyscallHandler(uint64_t call_id, void* req) {
switch (call_id) {
// syscall/process.h
CASE(ProcessExit);
@ -101,7 +91,8 @@ extern "C" z_err_t SyscallHandler(uint64_t call_id, void* req, void* resp) {
// syscall/debug.h
CASE(Debug);
default:
panic("Unhandled syscall number: %x", call_id);
dbgln("Unhandled syscall number: %x", call_id);
return Z_ERR_UNIMPLEMENTED;
}
UNREACHABLE
}

2
zion/syscall/syscall_enter.s
View File

@ -30,8 +30,6 @@ syscall_enter:
# Restore caller registers using the userspace rsp in rbx
mov 0x40(%rbx), %rdi
mov 0x48(%rbx), %rsi
mov 0x50(%rbx), %rdx
mov 0x58(%rbx), %rcx
# Don't push the rbp and rsp as the callee will do so.
call SyscallHandler