Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Push and pop db_recover for error handling, so we can set up temporary catch 

points easily.  (Alluded to by m68k code, but not implemented yet for some
reason.)
This commit is contained in:
mycroft 1994-01-09 22:35:10 +00:00
parent 384b7f777a
commit 6b3e4e6b02
1 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
sys/ddb/db_command.c
View File

@ -23,7 +23,7 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $Id: db_command.c,v 1.7 1993/12/18 04:46:29 mycroft Exp $
* $Id: db_command.c,v 1.8 1994/01/09 22:35:10 mycroft Exp $
*/
/*
@ -43,7 +43,7 @@
* Exported global variables
*/
boolean_t db_cmd_loop_done;
jmp_buf db_jmpbuf;
jmp_buf *db_recover;
db_addr_t db_dot;
db_addr_t db_last_addr;
db_addr_t db_prev;
@ -56,7 +56,6 @@ db_addr_t db_next;
*/
boolean_t db_ed_style = TRUE;
/*
* Utility routine - discard tokens through end-of-line.
*/
@ -425,7 +424,9 @@ db_help_cmd()
void
db_command_loop()
{
extern int db_output_line;
jmp_buf db_jmpbuf;
jmp_buf *savejmp = db_recover;
extern int db_output_line;
/*
* Initialize 'prev' and 'next' to dot.
@ -434,18 +435,20 @@ db_command_loop()
db_next = db_dot;
db_cmd_loop_done = 0;
(void) setjmp(db_recover = &db_jmpbuf);
while (!db_cmd_loop_done) {
if (db_print_position() != 0)
db_printf("\n");
db_output_line = 0;
(void) setjmp(db_jmpbuf);
if (db_print_position() != 0)
db_printf("\n");
db_output_line = 0;
db_printf("db> ");
(void) db_read_line();
db_printf("db> ");
(void) db_read_line();
db_command(&db_last_command, db_command_table);
db_command(&db_last_command, db_command_table);
}
db_recover = savejmp;
}
void
@ -455,7 +458,7 @@ db_error(s)
if (s)
db_printf(s);
db_flush_lex();
longjmp(db_jmpbuf, 1);
longjmp(db_recover, 1);
}