620 lines
14 KiB
Bash
Executable File
620 lines
14 KiB
Bash
Executable File
#!/bin/sh
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# User Interface Events.
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# Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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#
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# Contributed by Cygnus Solutions.
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#
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# This file is part of GDB.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# What happens next:
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#
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# The gdb-events.h/gdb-events.c files this script generates are commited
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# and published.
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# Any UI module that is installing events is changed so that the
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# events are installed using the ``set_gdb_events()'' and
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# ``gdb_event_hooks()'' interfaces. There could prove to be an issue
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# here with respect to annotate. We might need to accomodate a hook
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# stack that allows several ui blocks to install their own events.
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# Each of the variable events (as currently generated) is converted
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# to either a straight function call or a function call with a
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# predicate.
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IFS=:
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read="class returntype function formal actual attrib"
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function_list ()
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{
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# category:
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# # -> disable
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# * -> compatibility - pointer variable that is initialized
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# by set_gdb_events().
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# ? -> Predicate and function proper.
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# f -> always call (must have a void returntype)
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# return-type
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# name
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# formal argument list
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# actual argument list
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# attributes
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# description
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cat <<EOF |
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f:void:breakpoint_create:int b:b
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f:void:breakpoint_delete:int b:b
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f:void:breakpoint_modify:int b:b
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f:void:tracepoint_create:int number:number
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f:void:tracepoint_delete:int number:number
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f:void:tracepoint_modify:int number:number
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f:void:architecture_changed:void
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f:void:target_changed:void
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f:void:selected_frame_level_changed:int level:level
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#*:void:annotate_starting_hook:void
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#*:void:annotate_stopped_hook:void
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#*:void:annotate_signalled_hook:void
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#*:void:annotate_signal_hook:void
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#*:void:annotate_exited_hook:void
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##*:void:print_register_hook:int
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##*:CORE_ADDR:find_toc_address_hook:CORE_ADDR
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##*:void:sparc_print_register_hook:int regno:regno
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#*:void:target_resume_hook:void
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#*:void:target_wait_loop_hook:void
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#*:void:init_gdb_hook:char *argv0:argv0
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#*:void:command_loop_hook:void
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#*:void:fputs_unfiltered_hook:const char *linebuff,struct ui_file *stream:linebuff, stream
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#*:void:print_frame_info_listing_hook:struct symtab *s, int line, int stopline, int noerror:s, line, stopline, noerror
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#*:int:query_hook:const char *query, va_list args:query, args
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#*:void:warning_hook:const char *string, va_list args:string, args
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#*:void:target_output_hook:char *b:b
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#*:void:interactive_hook:void
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#*:void:registers_changed_hook:void
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#*:void:readline_begin_hook:char *format, ...:format
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#*:char *:readline_hook:char *prompt:prompt
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#*:void:readline_end_hook:void
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#*:int:target_wait_hook:int pid, struct target_waitstatus *status:pid, status
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#*:void:call_command_hook:struct cmd_list_element *c, char *cmd, int from_tty:c, cmd, from_tty
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#*:NORETURN void:error_hook:void:: ATTR_NORETURN
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#*:void:error_begin_hook:void
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##*:int:target_architecture_hook:const struct bfd_arch_info *
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#*:void:exec_file_display_hook:char *filename:filename
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#*:void:file_changed_hook:char *filename:filename
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##*:void:specify_exec_file_hook:
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#*:int:gdb_load_progress_hook:char *section, unsigned long num:section, num
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#*:void:pre_add_symbol_hook:char *name:name
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#*:void:post_add_symbol_hook:void
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#*:void:selected_frame_level_changed_hook:int level:level
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#*:int:gdb_loop_hook:int signo:signo
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##*:void:solib_create_inferior_hook:void
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##*:void:xcoff_relocate_symtab_hook:unsigned int
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EOF
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grep -v '^#'
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}
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copyright ()
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{
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cat <<EOF
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/* User Interface Events.
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Copyright 1999, 2001, 2002 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Work in progress */
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/* This file was created with the aid of \`\`gdb-events.sh''.
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The bourn shell script \`\`gdb-events.sh'' creates the files
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\`\`new-gdb-events.c'' and \`\`new-gdb-events.h and then compares
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them against the existing \`\`gdb-events.[hc]''. Any differences
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found being reported.
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If editing this file, please also run gdb-events.sh and merge any
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changes into that script. Conversely, when making sweeping changes
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to this file, modifying gdb-events.sh and using its output may
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prove easier. */
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EOF
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}
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#
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# The .h file
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#
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exec > new-gdb-events.h
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copyright
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cat <<EOF
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#ifndef GDB_EVENTS_H
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#define GDB_EVENTS_H
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#ifndef WITH_GDB_EVENTS
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#define WITH_GDB_EVENTS 1
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#endif
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EOF
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# pointer declarations
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echo ""
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echo ""
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cat <<EOF
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/* COMPAT: pointer variables for old, unconverted events.
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A call to set_gdb_events() will automatically update these. */
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EOF
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echo ""
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function_list | while eval read $read
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do
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case "${class}" in
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"*" )
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echo "extern ${returntype} (*${function}_event) (${formal})${attrib};"
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;;
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esac
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done
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# function typedef's
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echo ""
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echo ""
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cat <<EOF
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/* Type definition of all hook functions.
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Recommended pratice is to first declare each hook function using
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the below ftype and then define it. */
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EOF
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echo ""
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function_list | while eval read $read
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do
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echo "typedef ${returntype} (gdb_events_${function}_ftype) (${formal});"
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done
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# gdb_events object
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echo ""
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echo ""
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cat <<EOF
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/* gdb-events: object. */
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EOF
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echo ""
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echo "struct gdb_events"
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echo " {"
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function_list | while eval read $read
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do
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echo " gdb_events_${function}_ftype *${function}${attrib};"
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done
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echo " };"
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# function declarations
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echo ""
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echo ""
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cat <<EOF
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/* Interface into events functions.
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Where a *_p() predicate is present, it must be called before
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calling the hook proper. */
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EOF
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function_list | while eval read $read
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do
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case "${class}" in
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"*" ) continue ;;
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"?" )
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echo "extern int ${function}_p (void);"
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echo "extern ${returntype} ${function}_event (${formal})${attrib};"
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;;
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"f" )
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echo "extern ${returntype} ${function}_event (${formal})${attrib};"
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;;
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esac
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done
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# function macros
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echo ""
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echo ""
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cat <<EOF
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/* When GDB_EVENTS are not being used, completly disable them. */
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EOF
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echo ""
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echo "#if !WITH_GDB_EVENTS"
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function_list | while eval read $read
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do
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case "${class}" in
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"*" ) continue ;;
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"?" )
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echo "#define ${function}_event_p() 0"
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echo "#define ${function}_event(${actual}) 0"
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;;
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"f" )
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echo "#define ${function}_event(${actual}) 0"
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;;
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esac
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done
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echo "#endif"
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# our set function
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cat <<EOF
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/* Install custom gdb-events hooks. */
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extern struct gdb_events *set_gdb_event_hooks (struct gdb_events *vector);
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/* Deliver any pending events. */
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extern void gdb_events_deliver (struct gdb_events *vector);
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/* Clear event handlers */
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extern void clear_gdb_event_hooks (void);
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#if !WITH_GDB_EVENTS
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#define set_gdb_events(x) 0
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#define set_gdb_event_hooks(x) 0
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#define gdb_events_deliver(x) 0
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#endif
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EOF
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# close it off
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echo ""
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echo "#endif"
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exec 1>&2
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#../move-if-change new-gdb-events.h gdb-events.h
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if test -r gdb-events.h
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then
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diff -c gdb-events.h new-gdb-events.h
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if [ $? = 1 ]
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then
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echo "gdb-events.h changed? cp new-gdb-events.h gdb-events.h" 1>&2
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fi
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else
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echo "File missing? mv new-gdb-events.h gdb-events.h" 1>&2
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fi
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#
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# C file
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#
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exec > new-gdb-events.c
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copyright
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cat <<EOF
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#include "defs.h"
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#include "gdb-events.h"
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#include "gdbcmd.h"
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#if WITH_GDB_EVENTS
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static struct gdb_events null_event_hooks;
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static struct gdb_events queue_event_hooks;
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static struct gdb_events *current_event_hooks = &null_event_hooks;
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#endif
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int gdb_events_debug;
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EOF
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# global pointer variables - always have this
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#echo ""
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#function_list | while eval read $read
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#do
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# case "${class}" in
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# "*" )
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# echo "${returntype} (*${function}_event) (${formal})${attrib} = 0;"
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# ;;
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# esac
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#done
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# function bodies
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echo ""
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echo "#if WITH_GDB_EVENTS"
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function_list | while eval read $read
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do
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case "${class}" in
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"*" ) continue ;;
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"?" )
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cat <<EOF
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int
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${function}_event_p (${formal})
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{
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return current_event_hooks->${function};
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}
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${returntype}
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${function}_event (${formal})
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{
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return current_events->${function} (${actual});
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}
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EOF
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;;
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"f" )
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cat <<EOF
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void
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${function}_event (${formal})
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{
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if (gdb_events_debug)
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fprintf_unfiltered (gdb_stdlog, "${function}_event\n");
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if (!current_event_hooks->${function})
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return;
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current_event_hooks->${function} (${actual});
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}
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EOF
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;;
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esac
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done
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echo ""
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echo "#endif"
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# Set hooks function
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echo ""
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cat <<EOF
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#if WITH_GDB_EVENTS
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struct gdb_events *
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set_gdb_event_hooks (struct gdb_events *vector)
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{
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struct gdb_events *old_events = current_event_hooks;
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if (vector == NULL)
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current_event_hooks = &queue_event_hooks;
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else
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current_event_hooks = vector;
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return old_events;
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EOF
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function_list | while eval read $read
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do
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case "${class}" in
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"*" )
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echo " ${function}_event = hooks->${function};"
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;;
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esac
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done
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cat <<EOF
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}
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#endif
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EOF
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# Clear hooks function
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echo ""
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cat <<EOF
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#if WITH_GDB_EVENTS
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void
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clear_gdb_event_hooks (void)
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{
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set_gdb_event_hooks (&null_event_hooks);
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}
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#endif
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EOF
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# event type
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echo ""
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cat <<EOF
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enum gdb_event
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{
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EOF
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function_list | while eval read $read
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do
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case "${class}" in
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"f" )
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echo " ${function},"
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;;
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esac
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done
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cat <<EOF
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nr_gdb_events
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};
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EOF
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# event data
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echo ""
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function_list | while eval read $read
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do
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case "${class}" in
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"f" )
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if test ${actual}
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then
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echo "struct ${function}"
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echo " {"
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echo " `echo ${formal} | tr '[,]' '[;]'`;"
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echo " };"
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echo ""
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fi
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;;
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esac
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done
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# event queue
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cat <<EOF
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struct event
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{
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enum gdb_event type;
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struct event *next;
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union
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{
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EOF
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function_list | while eval read $read
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do
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case "${class}" in
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"f" )
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if test ${actual}
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then
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echo " struct ${function} ${function};"
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fi
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;;
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esac
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done
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cat <<EOF
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}
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data;
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};
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struct event *pending_events;
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struct event *delivering_events;
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EOF
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# append
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echo ""
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cat <<EOF
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static void
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append (struct event *new_event)
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{
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struct event **event = &pending_events;
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while ((*event) != NULL)
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event = &((*event)->next);
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(*event) = new_event;
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(*event)->next = NULL;
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}
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EOF
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# schedule a given event
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function_list | while eval read $read
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do
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case "${class}" in
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"f" )
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echo ""
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echo "static void"
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echo "queue_${function} (${formal})"
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echo "{"
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echo " struct event *event = XMALLOC (struct event);"
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echo " event->type = ${function};"
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for arg in `echo ${actual} | tr '[,]' '[:]' | tr -d '[ ]'`; do
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echo " event->data.${function}.${arg} = ${arg};"
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done
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echo " append (event);"
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echo "}"
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;;
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esac
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done
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|
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# deliver
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echo ""
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cat <<EOF
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void
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gdb_events_deliver (struct gdb_events *vector)
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{
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/* Just zap any events left around from last time. */
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while (delivering_events != NULL)
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|
{
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struct event *event = delivering_events;
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delivering_events = event->next;
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xfree (event);
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}
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|
/* Process any pending events. Because one of the deliveries could
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bail out we move everything off of the pending queue onto an
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in-progress queue where it can, later, be cleaned up if
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necessary. */
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delivering_events = pending_events;
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pending_events = NULL;
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while (delivering_events != NULL)
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{
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struct event *event = delivering_events;
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switch (event->type)
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{
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EOF
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function_list | while eval read $read
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do
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case "${class}" in
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"f" )
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echo " case ${function}:"
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if test ${actual}
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then
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echo " vector->${function}"
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sep=" ("
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ass=""
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for arg in `echo ${actual} | tr '[,]' '[:]' | tr -d '[ ]'`; do
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ass="${ass}${sep}event->data.${function}.${arg}"
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sep=",
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"
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done
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echo "${ass});"
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else
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echo " vector->${function} ();"
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fi
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echo " break;"
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;;
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esac
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done
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cat <<EOF
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}
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delivering_events = event->next;
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xfree (event);
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}
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}
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EOF
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|
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# Finally the initialization
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echo ""
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cat <<EOF
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|
void _initialize_gdb_events (void);
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|
void
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_initialize_gdb_events (void)
|
|
{
|
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struct cmd_list_element *c;
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#if WITH_GDB_EVENTS
|
|
EOF
|
|
function_list | while eval read $read
|
|
do
|
|
case "${class}" in
|
|
"f" )
|
|
echo " queue_event_hooks.${function} = queue_${function};"
|
|
;;
|
|
esac
|
|
done
|
|
cat <<EOF
|
|
#endif
|
|
|
|
c = add_set_cmd ("eventdebug", class_maintenance, var_zinteger,
|
|
(char *) (&gdb_events_debug), "Set event debugging.\n\\
|
|
When non-zero, event/notify debugging is enabled.", &setlist);
|
|
deprecate_cmd (c, "set debug event");
|
|
deprecate_cmd (add_show_from_set (c, &showlist), "show debug event");
|
|
|
|
add_show_from_set (add_set_cmd ("event",
|
|
class_maintenance,
|
|
var_zinteger,
|
|
(char *) (&gdb_events_debug),
|
|
"Set event debugging.\n\\
|
|
When non-zero, event/notify debugging is enabled.", &setdebuglist),
|
|
&showdebuglist);
|
|
}
|
|
EOF
|
|
|
|
# close things off
|
|
exec 1>&2
|
|
#../move-if-change new-gdb-events.c gdb-events.c
|
|
# Replace any leading spaces with tabs
|
|
sed < new-gdb-events.c > tmp-gdb-events.c \
|
|
-e 's/\( \)* /\1 /g'
|
|
mv tmp-gdb-events.c new-gdb-events.c
|
|
# Move if changed?
|
|
if test -r gdb-events.c
|
|
then
|
|
diff -c gdb-events.c new-gdb-events.c
|
|
if [ $? = 1 ]
|
|
then
|
|
echo "gdb-events.c changed? cp new-gdb-events.c gdb-events.c" 1>&2
|
|
fi
|
|
else
|
|
echo "File missing? mv new-gdb-events.c gdb-events.c" 1>&2
|
|
fi
|