fix compiler warnings

1 files changed, 7 insertions, 5 deletions

diff --git a/i686/isr.c b/i686/isr.c
index 6fbe200..862f74a 100644
--- a/i686/isr.c
+++ b/i686/isr.c
@@ -17,30 +17,32 @@ abort_handler(struct interrupt_frame *frame)
 }
 
 __attribute__((interrupt)) void
-syscall_handler(struct interrupt_frame *)
+syscall_handler(__attribute__((unused)) struct interrupt_frame *frame)
 {
-  printf("syscall\n");
+  unsigned int n;
+  asm volatile("mov %%eax, %0" : "=r"(n));
+  printf("syscall %x\n, n");
   abort();
 }
 
 void pic_clear(unsigned char irq);
 
 __attribute__((interrupt)) void
-irq0x00(struct interrupt_frame *)
+irq0x00(__attribute__((unused)) struct interrupt_frame *frame)
 {
   pic_clear(0x00);
 }
 
 extern void ps2_keyboard_irq_handler();
 __attribute__((interrupt)) void
-irq0x01(struct interrupt_frame *)
+irq0x01(__attribute__((unused)) struct interrupt_frame *frame)
 {
   ps2_keyboard_irq_handler();
   pic_clear(0x01);
 }
 
 __attribute__((interrupt)) void
-irq0x0c(struct interrupt_frame *)
+irq0x0c(__attribute__((unused)) struct interrupt_frame *frame)
 {
   printf("irq 0x0c\n");
   pic_clear(0x0c);