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https://sourceware.org/git/binutils-gdb.git
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509 lines
11 KiB
Bash
Executable File
509 lines
11 KiB
Bash
Executable File
#!/bin/sh
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# User Interface Events.
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# Copyright 1999, 2000, 2001, 2002, 2004 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,
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# USA.
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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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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, 2004 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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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. Recommended pratice is to
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first declare each hook function using the below ftype and then
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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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# 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 *deprecated_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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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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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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int gdb_events_debug;
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EOF
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# function bodies
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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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# Set hooks function
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echo ""
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cat <<EOF
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struct gdb_events *
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deprecated_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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EOF
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# Clear hooks function
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echo ""
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cat <<EOF
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void
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clear_gdb_event_hooks (void)
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{
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deprecated_set_gdb_event_hooks (&null_event_hooks);
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}
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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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# 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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# 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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{
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struct cmd_list_element *c;
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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 " queue_event_hooks.${function} = queue_${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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c = add_set_cmd ("eventdebug", class_maintenance, var_zinteger,
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(char *) (&gdb_events_debug), "Set event debugging.\n\\
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When non-zero, event/notify debugging is enabled.", &setlist);
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deprecate_cmd (c, "set debug event");
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deprecate_cmd (deprecated_add_show_from_set (c, &showlist),
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"show debug event");
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deprecated_add_show_from_set (add_set_cmd ("event",
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class_maintenance,
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var_zinteger,
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(char *) (&gdb_events_debug),
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"Set event debugging.\n\\
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When non-zero, event/notify debugging is enabled.", &setdebuglist),
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&showdebuglist);
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}
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EOF
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# close things off
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exec 1>&2
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#../move-if-change new-gdb-events.c gdb-events.c
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# Replace any leading spaces with tabs
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sed < new-gdb-events.c > tmp-gdb-events.c \
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-e 's/\( \)* /\1 /g'
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mv tmp-gdb-events.c new-gdb-events.c
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# Move if changed?
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if test -r gdb-events.c
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then
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diff -c gdb-events.c new-gdb-events.c
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if [ $? = 1 ]
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then
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echo "gdb-events.c changed? cp new-gdb-events.c gdb-events.c" 1>&2
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fi
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else
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echo "File missing? mv new-gdb-events.c gdb-events.c" 1>&2
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fi
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