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#include <stdint.h>
#include <kernel/syscall/syscall.h>
#include <kernel/interrupts/interrupts.h>
#include <kernel/system.h>
#include <kernel/lib/stdio.h>
#include <kernel/io/io.h>
typedef uint32_t (*syscall_func)(uint32_t, ...);
uint32_t (*syscalls[])() = { [0] = (uint32_t(*)())halt_loop, // DEBUG!
[1] = sys_exec,
[2] = (uint32_t(*)())sys_putch,
[3] = sys_getch,
[4] = sys_malloc,
[5] = sys_free };
void syscall_handler(struct regs *r)
{
cli();
log("Received syscall!");
if (r->eax >= sizeof(syscalls) / sizeof(*syscalls))
return;
syscall_func location = (syscall_func)syscalls[r->eax];
if (!location)
return;
log("[SYSCALL] %d (0x%x) 0x%x 0x%x 0x%x 0x%x 0x%x", r->eax, location, r->ebx, r->ecx,
r->edx, r->esi, r->edi);
r->eax = location(r->ebx, r->ecx, r->edx, r->esi, r->edi);
sti();
}
void syscalls_install()
{
isr_install_handler(0x80, syscall_handler);
}
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