trap.c File Reference

#include <i386/signal.h>
#include <sys/trap.h>
#include <sys/gdt.h>
#include <ubixos/sched.h>
#include <lib/kprintf.h>
#include <vmm/vmm.h>
#include <ubixos/endtask.h>

Include dependency graph for trap.c:

Go to the source code of this file.

Macros
#define	FIRST_TSS_ENTRY   6
#define	get_seg_byte(seg, addr)
#define	get_seg_long(seg, addr)
#define	store_TR(n)
#define	VM_MASK   0x00020000

Functions
void	die_if_kernel (char *str, struct trapframe *regs, long err)
void	trap (struct trapframe *frame)

Macro Definition Documentation

FIRST_TSS_ENTRY

#define FIRST_TSS_ENTRY   6

Definition at line 37 of file trap.c.

get_seg_byte

#define get_seg_byte	(		seg,
			addr
	)

Value:

({ \
register char __res; \
__asm__("push %%fs;mov %%ax,%%fs;movb %%fs:%2,%%al;pop %%fs" \
        :"=a" (__res):"0" (seg),"m" (*(addr))); \
__res;})

Definition at line 53 of file trap.c.

get_seg_long

#define get_seg_long	(		seg,
			addr
	)

Value:

({ \
  register unsigned long __res; \
  __asm__("push %%fs;mov %%ax,%%fs;movl %%fs:%2,%%eax;pop %%fs" \
                  :"=a" (__res):"0" (seg),"m" (*(addr))); \
          __res;})

Definition at line 47 of file trap.c.

store_TR

#define store_TR

(

n

)

Value:

__asm__("str %%ax\n\t" \
          "subl %2,%%eax\n\t" \
          "shrl $4,%%eax" \
          :"=a" (n) \
          :"0" (0),"i" (FIRST_TSS_ENTRY<<3))

Definition at line 40 of file trap.c.

VM_MASK

#define VM_MASK   0x00020000

Definition at line 38 of file trap.c.

Function Documentation

die_if_kernel()

void die_if_kernel	(	char *	str,
		struct trapframe *	regs,
		long	err
	)

Definition at line 59 of file trap.c.

References kprintf(), trapframe::tf_cs, trapframe::tf_ds, trapframe::tf_eax, trapframe::tf_ebp, trapframe::tf_ebx, trapframe::tf_ecx, trapframe::tf_edi, trapframe::tf_edx, trapframe::tf_eflags, trapframe::tf_eip, trapframe::tf_err, trapframe::tf_es, trapframe::tf_esi, trapframe::tf_esp, trapframe::tf_fs, trapframe::tf_gs, trapframe::tf_ss, and trapframe::tf_trapno.

Referenced by __alignmentCheck(), __debug(), __divideError(), __doubleFault(), __floatingPoint(), __machineCheck(), __nmi(), __security(), __simd(), __virtualization(), _intNull(), sys_call(), and sys_call_posix().

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trap()

void trap

(

struct trapframe *

frame

)

Definition at line 101 of file trap.c.

References trapframe::tf_trapno.