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Allow one to fault in DDB and survive.

This commit is contained in:
brezak 1993-07-22 13:04:45 +00:00
parent 556176fc24
commit b74ddcc84b
1 changed files with 11 additions and 5 deletions
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16
sys/arch/i386/i386/db_interface.c
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@ -23,12 +23,15 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $Id: db_interface.c,v 1.3 1993/06/27 06:02:50 andrew Exp $
* $Id: db_interface.c,v 1.4 1993/07/22 13:04:45 brezak Exp $
*/
/*
* HISTORY
* $Log: db_interface.c,v $
* Revision 1.3 1993/06/27 06:02:50 andrew
* Revision 1.4 1993/07/22 13:04:45 brezak
* Allow one to fault in DDB and survive.
*
* Revision 1.3 1993/06/27 06:02:50 andrew
* ANSIfications - removed all implicit function return types and argument
* definitions. Ensured that all files include "systm.h" to gain access to
* general prototypes. Casts where necessary.
@ -74,6 +77,7 @@
#include <setjmp.h>
#include <sys/systm.h> /* just for boothowto --eichin */
int db_active = 0;
extern jmp_buf db_jmpbuf;
/*
* Received keyboard interrupt sequence.
@ -118,6 +122,11 @@ kdb_trap(type, code, regs)
db_nofault = 0;
longjmp(*no_fault, 1);
}
else if (db_active) {
db_printf("Faulted in DDB; continuing...\n");
db_flush_lex();
longjmp(db_jmpbuf, 1);
}
}
/* Should switch to kdb`s own stack here. */
@ -185,9 +194,6 @@ kdbprinttrap(type, code)
/*
* Read bytes from kernel address space for debugger.
*/
extern jmp_buf db_jmpbuf;
void
db_read_bytes(addr, size, data)
vm_offset_t addr;