46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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/* The system call implemented in this file:
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* m_type: SYS_ABORT
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*
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* The parameters for this system call are:
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* m1_i1: ABRT_HOW (how to abort, possibly fetch monitor params)
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* m1_i2: ABRT_MON_PROC (proc nr to get monitor params from)
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* m1_i3: ABRT_MON_LEN (length of monitor params)
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* m1_p1: ABRT_MON_ADDR (virtual address of params)
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*/
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#include "../kernel.h"
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#include "../system.h"
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#include <unistd.h>
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INIT_ASSERT
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/*===========================================================================*
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* do_abort *
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*===========================================================================*/
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PUBLIC int do_abort(m_ptr)
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message *m_ptr; /* pointer to request message */
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{
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/* Handle sys_abort. MINIX is unable to continue. This can originate in the
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* MM (normal abort or panic) or FS (panic), or TTY (a CTRL-ALT-DEL or ESC
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* after debugging dumps).
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*/
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register struct proc *rp;
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phys_bytes src_phys;
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vir_bytes len;
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int how = m_ptr->ABRT_HOW;
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rp = proc_addr(m_ptr->m_source);
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if (how == RBT_MONITOR) {
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/* The monitor is to run user specified instructions. */
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len = m_ptr->ABRT_MON_LEN + 1;
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assert(len <= mon_parmsize);
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src_phys = numap_local(m_ptr->ABRT_MON_PROC,
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(vir_bytes) m_ptr->ABRT_MON_ADDR, len);
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assert(src_phys != 0);
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phys_copy(src_phys, mon_params, (phys_bytes) len);
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}
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prepare_shutdown(how);
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return(OK); /* pro-forma (really EDISASTER) */
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}
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