Alan Mackenzie 48215c41d1 New debugging facility: backtraces from errors in Lisp called from redisplay ... Setting backtrace-on-redisplay-error to non-nil enables the generation of a Lisp backtrace in buffer *Redisplay-trace* following an error in Lisp called from redisplay. * doc/lispref/debugging.texi (Debugging Redisplay): New subsection. (Error Debugging): Reference to the new subsection. * etc/NEWS: New entry for the new facility. * src/eval.c (redisplay_deep_handler): New variable. (init_eval): Initialize redisplay_deep_handler. (call_debugger): Don't throw to top-level after calling debug-early (internal_condition_case_n): "Bind" redisplay_deep_handler to the current handler. (backtrace_yet): New boolean variable. (signal_or_quit): New code section to handle Lisp errors occurring in redisplay. (syms_of_eval): New DEFVAR_BOOL backtrace-on-redisplay-error. * src/keyboard.c (command_loop_1): Set backtrace_yet to false each time around the loop. (safe_run_hooks_error): Allow args to be up to four Lisp_Objects long. (safe_run_hooks_2): New function. * src/lisp.h (top level): declare as externs backtrace_yet and safe_run_hooks_2. * src/xdisp.c (run_window_scroll_functions): Replace a call to run_hook_with_args_2 with one to safe_run_hooks_2.		2022-08-11 19:31:09 +00:00
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emacs	Merge from origin/emacs-28	2022-08-07 12:57:53 +02:00
lispintro	Change current-time back to list form	2022-04-28 12:54:06 -07:00
lispref	New debugging facility: backtraces from errors in Lisp called from redisplay	2022-08-11 19:31:09 +00:00
man	Merge from origin/emacs-28	2022-06-13 06:55:57 +02:00
misc	Merge from origin/emacs-28	2022-08-11 06:30:24 +02:00