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Allow Sys_Error to be hooked.

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This makes debugging builtins that wrap normal functions a little easier by
giving a progs dump when such an error occurs.
This commit is contained in:
Bill Currie 2016-01-03 23:04:00 +09:00
parent 735fcf68d5
commit 546e333a3c
3 changed files with 59 additions and 4 deletions
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19
libs/gamecode/pr_exec.c
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@ -328,6 +328,14 @@ signal_hook (int sig, void *data)
return 0;
}
static void
error_handler (void *data)
{
progs_t *pr = (progs_t *) data;
PR_DumpState (pr);
fflush (stdout);
}
VISIBLE int
PR_CallFunction (progs_t *pr, func_t fnum)
{
@ -370,11 +378,11 @@ PR_ExecuteProgram (progs_t * pr, func_t fnum)
startprofile = profile = 0;
Sys_PushSignalHook (signal_hook, pr);
Sys_PushErrorHandler (error_handler, pr);
if (!PR_CallFunction (pr, fnum)) {
// called a builtin instead of progs code
Sys_PopSignalHook ();
return;
goto exit_program;
}
st = pr->pr_statements + pr->pr_xstatement;
@ -964,8 +972,8 @@ op_call:
if (pr->pr_depth == exitdepth) {
if (pr->pr_trace && pr->pr_depth <= pr->pr_trace_depth)
pr->pr_trace = false;
Sys_PopSignalHook ();
return; // all done
// all done
goto exit_program;
}
break;
case OP_STATE:
@ -1116,4 +1124,7 @@ op_call:
PR_RunError (pr, "watchpoint hit: %d -> %d", old_val.integer_var,
watch->integer_var);
}
exit_program:
Sys_PopErrorHandler ();
Sys_PopSignalHook ();
}