From 81f9e758dc40ba6397d59da10ee998d16274eb5c Mon Sep 17 00:00:00 2001
From: Matheus <matheusuky@gmail.com>
Date: Sat, 6 Dec 2025 18:48:48 -0300
Subject: [PATCH] kernel: misc fixes

---
 kernel-src/include/kernel/abi.h      | 4 +++-
 kernel-src/include/x86-64/arch/idt.h | 2 +-
 kernel-src/mm/vmm.c                  | 1 +
 kernel-src/sys/signal.c              | 2 +-
 4 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/kernel-src/include/kernel/abi.h b/kernel-src/include/kernel/abi.h
index 290442de..4733b7bb 100644
--- a/kernel-src/include/kernel/abi.h
+++ b/kernel-src/include/kernel/abi.h
@@ -55,12 +55,14 @@ typedef struct {
 #define DT_SOCK 12
 #define DT_WHT 14
 
+#define NAME_MAX 255
+
 typedef struct {
 	ino_t d_ino;
 	off_t d_off;
 	unsigned short d_reclen;
 	unsigned char d_type;
-	char d_name[1024];
+	char d_name[NAME_MAX+1];
 } dent_t;
 
 #define TYPE_FIFO 1
diff --git a/kernel-src/include/x86-64/arch/idt.h b/kernel-src/include/x86-64/arch/idt.h
index c8783540..11e084dd 100644
--- a/kernel-src/include/x86-64/arch/idt.h
+++ b/kernel-src/include/x86-64/arch/idt.h
@@ -1,5 +1,5 @@
 #ifndef _IDT_H
-#define _IDT_h
+#define _IDT_H
 
 void arch_idt_reload();
 void arch_idt_setup();
diff --git a/kernel-src/mm/vmm.c b/kernel-src/mm/vmm.c
index 4e266af0..e488dbe1 100644
--- a/kernel-src/mm/vmm.c
+++ b/kernel-src/mm/vmm.c
@@ -906,6 +906,7 @@ vmmcontext_t *vmm_fork(vmmcontext_t *oldcontext) {
 		range = range->next;
 	}
 
+	// TODO do only userspace invalidation as to not send ipi to all cores
 	arch_mmu_invalidate_range(NULL, 0);
 
 	MUTEX_RELEASE(&oldcontext->space.lock);
diff --git a/kernel-src/sys/signal.c b/kernel-src/sys/signal.c
index e0475993..a161bf58 100644
--- a/kernel-src/sys/signal.c
+++ b/kernel-src/sys/signal.c
@@ -579,7 +579,7 @@ bool signal_check(struct thread_t *thread, context_t *context, bool syscall, uin
 
 		memset(&sigframe->siginfo, 0, sizeof(siginfo_t));
 		if (signal == SIGSEGV)
-			sigframe->siginfo.__si_fields.__sigfault.si_addr = CTX_TRAP_ADDR(context);
+			sigframe->siginfo.__si_fields.__sigfault.si_addr = (void *)CTX_TRAP_ADDR(context);
 
 		if (usercopy_touser(stack, sigframe, ARCH_SIGFRAME_SIZE)) {
 			printf("signal: bad user stack %p (altstack %p) handling signal %d trapno %lu\n", stack, altstack, signal, sigframe->mcontext.gregs[MCONTEXT_REG_TRAPNO]);