Fix syscalls (TODO: use sysenter)

maxdev1 · maxdev1 · commit 8ffbb9d51576 · 2025-03-23T01:15:53.000+01:00
diff --git a/kernel/src/kernel/calls/syscall.cpp b/kernel/src/kernel/calls/syscall.cpp
@@ -33,12 +33,12 @@
 
 #include <ghost/syscall.h>
 
-g_syscall_registration* syscallRegistrations = 0;
+g_syscall_registration* syscallRegistrations = nullptr;
 
 void syscallHandle(g_task* task)
 {
 	uint64_t callId = task->state->rax;
-	void* syscallData = (void*) task->state->rbx;
+	void* syscallData = (void*) task->state->rdi;
 
 	syscall(callId, syscallData);
 }
@@ -54,7 +54,7 @@ void syscall(uint32_t callId, void* syscallData)
 	}
 
 	g_syscall_registration* reg = &syscallRegistrations[callId];
-	if(reg->handler == 0)
+	if(reg->handler == nullptr)
 	{
 		logInfo("%! task %i tried to use unknown syscall %i", "syscall", task->id, callId);
 		return;

Original file line number	Diff line number	Diff line change
`@@ -33,12 +33,12 @@`
`33`	`33`
`34`	`34`	`#include <ghost/syscall.h>`
`35`	`35`
`36`		`-g_syscall_registration* syscallRegistrations = 0;`
	`36`	`+g_syscall_registration* syscallRegistrations = nullptr;`
`37`	`37`
`38`	`38`	`void syscallHandle(g_task* task)`
`39`	`39`	`{`
`40`	`40`	`uint64_t callId = task->state->rax;`
`41`		`- void* syscallData = (void*) task->state->rbx;`
	`41`	`+ void* syscallData = (void*) task->state->rdi;`
`42`	`42`
`43`	`43`	`syscall(callId, syscallData);`
`44`	`44`	`}`
`@@ -54,7 +54,7 @@ void syscall(uint32_t callId, void* syscallData)`
`54`	`54`	`}`
`55`	`55`
`56`	`56`	`g_syscall_registration* reg = &syscallRegistrations[callId];`
`57`		`- if(reg->handler == 0)`
	`57`	`+ if(reg->handler == nullptr)`
`58`	`58`	`{`
`59`	`59`	`logInfo("%! task %i tried to use unknown syscall %i", "syscall", task->id, callId);`
`60`	`60`	`return;`