sys/emulation/svr4/i386/svr4_locore.s

   1 #include "svr4_assym.h"                 /* system definitions */
   2 #include <machine/asmacros.h>           /* miscellaneous asm macros */
   3
   4 #include <svr4/svr4_syscall.h>          /* system call numbers */
   5
   6 /* $FreeBSD: src/sys/i386/svr4/svr4_locore.s,v 1.10.2.1 2000/07/07 00:38:51 obrien Exp $ */
   7
   8 NON_GPROF_ENTRY(svr4_sigcode)
   9         call    *SVR4_SIGF_HANDLER(%esp)
  10         leal    SVR4_SIGF_UC(%esp),%eax # ucp (the call may have clobbered the
  11                                         # copy at SIGF_UCP(%esp))
  12 #ifdef VM86
  13 #warning "VM86 doesn't work yet - do you really want this?"
  14         testl   $PSL_VM,SVR4_UC_EFLAGS(%eax)
  15         jnz     1f
  16 #endif
  17         movl    SVR4_UC_GS(%eax),%gs
  18 1:      pushl   %eax                    # pointer to ucontext
  19         pushl   $1                      # set context
  20         movl    $_svr4_sys_context,%eax
  21         int     $0x80                   # enter kernel with args on stack
  22 0:      jmp     0b
  23
  24         ALIGN_TEXT
  25 svr4_esigcode:
  26
  27         .data
  28         .globl  _svr4_szsigcode
  29 _svr4_szsigcode:
  30         .long   svr4_esigcode - _svr4_sigcode
  31
  32         .text
  33