Allow the user to switch into gdb mode from ddb
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=17848
@ -23,7 +23,7 @@
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $Id: db_command.c,v 1.17 1995/12/07 12:44:48 davidg Exp $
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* $Id: db_command.c,v 1.18 1995/12/10 19:07:49 bde Exp $
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*/
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/*
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@ -35,6 +35,7 @@
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* Command dispatcher.
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*/
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <sys/systm.h>
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#include <vm/vm.h>
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@ -58,7 +59,9 @@ db_addr_t db_prev;
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db_addr_t db_next;
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static db_cmdfcn_t db_fncall;
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static db_cmdfcn_t db_gdb;
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static db_cmdfcn_t db_panic;
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/*
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* if 'ed' style: 'dot' is set at start of last item printed,
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* and '+' points to next line.
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@ -366,6 +369,7 @@ static struct command db_command_table[] = {
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{ "show", 0, 0, db_show_cmds },
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{ "ps", db_ps, 0, 0 },
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{ "panic", db_panic, 0, 0 },
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{ "gdb", db_gdb, 0, 0 },
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{ (char *)0, }
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};
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@ -494,3 +498,19 @@ db_fncall(dummy1, dummy2, dummy3, dummy4)
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args[5], args[6], args[7], args[8], args[9] );
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db_printf("%#n\n", retval);
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}
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/* Enter GDB remote protocol debugger on the next trap. */
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static void
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db_gdb (dummy1, dummy2, dummy3, dummy4)
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db_expr_t dummy1;
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boolean_t dummy2;
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db_expr_t dummy3;
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char * dummy4;
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{
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boothowto ^= RB_GDB;
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db_printf("Next trap will enter %s\n",
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boothowto & RB_GDB ? "GDB remote protocol mode"
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: "DDB debugger");
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}
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