projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 3cd5310a DF |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| 6 | * @(#)breakpoint.h 5.1 (Berkeley) %G% | |
| 7 | */ | |
| d2ce9794 ML |
8 | |
| 9 | /* | |
| 10 | * Breakpoint module definitions. | |
| 11 | * | |
| 12 | * This module contains routines that manage breakpoints at a high level. | |
| 13 | * This includes adding and deleting breakpoints, handling the various | |
| 14 | * types of breakpoints when they happen, management of conditions for | |
| 15 | * breakpoints, and display information after single stepping. | |
| 16 | */ | |
| 17 | ||
| 18 | unsigned short tracing; | |
| 19 | unsigned short var_tracing; | |
| 20 | unsigned short inst_tracing; | |
| 21 | ||
| 22 | BOOLEAN isstopped; | |
| 23 | ||
| 24 | #define ss_lines (tracing != 0) | |
| 25 | #define ss_variables (var_tracing != 0) | |
| 26 | #define ss_instructions (inst_tracing != 0) | |
| 27 | #define single_stepping (ss_lines || ss_variables || ss_instructions) | |
| 28 | ||
| 29 | /* | |
| 30 | * types of breakpoints | |
| 31 | */ | |
| 32 | ||
| 33 | typedef enum { | |
| 34 | ALL_ON, /* turn TRACE on */ | |
| 35 | ALL_OFF, /* turn TRACE off */ | |
| 36 | INST, /* trace instruction (source line) */ | |
| 37 | CALL, RETURN, /* trace procedure/function */ | |
| 38 | BLOCK_ON, /* set CALL breakpoint */ | |
| 39 | BLOCK_OFF, /* clear CALL breakpoint */ | |
| 40 | TERM_ON, /* turn TRACEVAR on */ | |
| 41 | TERM_OFF, /* turn TRACEVAR off */ | |
| 42 | AT_BP, /* print expression at a line */ | |
| 43 | STOP_BP, /* stop execution */ | |
| 44 | CALLPROC, /* return from a "call"-ed procedure */ | |
| 45 | END_BP, /* return from program */ | |
| 46 | STOP_ON, /* start looking for stop condition */ | |
| 47 | STOP_OFF, /* stop looking for stop condition */ | |
| 48 | } BPTYPE; | |
| 49 | ||
| 50 | /* | |
| 51 | * Things that are on the tracing or condition list are either | |
| 52 | * associated with the trace (implying printing) or stop commands. | |
| 53 | */ | |
| 54 | ||
| 55 | typedef enum { TRPRINT, TRSTOP } TRTYPE; | |
| 56 | ||
| 57 | /* | |
| 58 | * routines available from this module | |
| 59 | */ | |
| 60 | ||
| 61 | addvar(); /* add a variable to the trace list */ | |
| 62 | delvar(); /* delete a variable from the trace list */ | |
| 63 | printvarnews(); /* print out variables that have changed */ | |
| 64 | trfree(); /* free the entire trace list */ | |
| 65 | addcond(); /* add a condition to the list */ | |
| 66 | delcond(); /* delete a condition from the list */ | |
| 67 | BOOLEAN trcond(); /* determine if any trace condition is true */ | |
| 68 | BOOLEAN stopcond(); /* determine if any stop condition is true */ | |
| 69 | ||
| 70 | addbp(); /* add a breakpoint */ | |
| 71 | delbp(); /* delete a breakpoint, return FALSE if unsuccessful */ | |
| 72 | bpfree(); /* free all breakpoint information */ | |
| 73 | setallbps(); /* set traps for all breakpoints */ | |
| 74 | unsetallbps(); /* remove traps at all breakpoints */ | |
| 75 | BOOLEAN bpact(); /* handle a breakpoint */ | |
| 76 | fixbps(); /* destroy temporary breakpoints left after a fault */ | |
| 77 | status(); /* list items being traced */ |