From ed5fa7c345c95eb39e282f69b391e72b7d3e9939 Mon Sep 17 00:00:00 2001 From: Martin Hunt Date: Thu, 26 Mar 1998 20:24:19 +0000 Subject: [PATCH] Thu Mar 26 12:00:35 1998 Martin M. Hunt * gdbtk.c (gdbtk_fputs): Insert fencepost. (gdb_loc): Correct pc calculation. (gdb_immediate_command): Return if a load is in progress. (gdb_cmd): Return if a load is in progress. (target_stop_wrapper): New function. (gdb_stop): Call target_stop_wrapper. (x_event): Add fencepost and optimize load cancel check. (gdbtk_start_timer): Set up structs only once. (gdbtk_stop_timer): Just use preset structs to set timer parameters. (gdb_loadfile): If file cannot be loaded, return error message. (gdb_loadfile): Add space before tab so that lines without a '-' can later be changed to have one. --- gdb/ChangeLog-gdbtk | 15 ++++++ gdb/gdbtk.c | 134 +++++++++++++++++++++++++++++++--------------------- 2 files changed, 94 insertions(+), 55 deletions(-) diff --git a/gdb/ChangeLog-gdbtk b/gdb/ChangeLog-gdbtk index d7afb60..2eb4d00 100644 --- a/gdb/ChangeLog-gdbtk +++ b/gdb/ChangeLog-gdbtk @@ -1,3 +1,18 @@ +Thu Mar 26 12:00:35 1998 Martin M. Hunt + + * gdbtk.c (gdbtk_fputs): Insert fencepost. + (gdb_loc): Correct pc calculation. + (gdb_immediate_command): Return if a load is in progress. + (gdb_cmd): Return if a load is in progress. + (target_stop_wrapper): New function. + (gdb_stop): Call target_stop_wrapper. + (x_event): Add fencepost and optimize load cancel check. + (gdbtk_start_timer): Set up structs only once. + (gdbtk_stop_timer): Just use preset structs to set timer parameters. + (gdb_loadfile): If file cannot be loaded, return error message. + (gdb_loadfile): Add space before tab so that lines without + a '-' can later be changed to have one. + Wed Mar 25 14:08:51 1998 Elena Zannoni * gdbtk.c (gdbtk_pre_add_symbol): Use Tcl_merge to form Tcl commands. diff --git a/gdb/gdbtk.c b/gdb/gdbtk.c index 50d8a5c..f1ee5fc 100644 --- a/gdb/gdbtk.c +++ b/gdb/gdbtk.c @@ -89,6 +89,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #endif static int load_in_progress = 0; +static int in_fputs = 0; int gdbtk_load_hash PARAMS ((char *, unsigned long)); int (*ui_load_progress_hook) PARAMS ((char *, unsigned long)); @@ -318,22 +319,22 @@ gdbtk_fputs (ptr, stream) const char *ptr; FILE *stream; { + char *merge[2], *command; + in_fputs = 1; + if (result_ptr) Tcl_DStringAppend (result_ptr, (char *) ptr, -1); else if (error_string_ptr != NULL && stream == gdb_stderr) Tcl_DStringAppend (error_string_ptr, (char *) ptr, -1); else { - Tcl_DString str; - - Tcl_DStringInit (&str); - - Tcl_DStringAppend (&str, "gdbtk_tcl_fputs", -1); - Tcl_DStringAppendElement (&str, (char *)ptr); - - Tcl_Eval (interp, Tcl_DStringValue (&str)); - Tcl_DStringFree (&str); + merge[0] = "gdbtk_tcl_fputs"; + merge[1] = (char *)ptr; + command = Tcl_Merge (2, merge); + Tcl_Eval (interp, command); + Tcl_Free (command); } + in_fputs = 0; } static int @@ -677,11 +678,12 @@ gdb_loc (clientData, interp, argc, argv) if (sals.nelts != 1) error ("Ambiguous line spec"); + + pc = sal.pc; } else error ("wrong # args"); - pc = sal.pc; if (sal.symtab) Tcl_DStringAppendElement (result_ptr, sal.symtab->filename); else @@ -1075,7 +1077,7 @@ gdb_immediate_command (clientData, interp, argc, argv) if (argc != 2) error ("wrong # args"); - if (running_now) + if (running_now || load_in_progress) return TCL_OK; Tcl_DStringAppend (result_ptr, "", -1); @@ -1106,7 +1108,7 @@ gdb_cmd (clientData, interp, argc, argv) if (argc != 2) error ("wrong # args"); - if (running_now) + if (running_now || load_in_progress) return TCL_OK; /* for the load instruction (and possibly others later) we @@ -1370,6 +1372,14 @@ gdb_listfuncs (clientData, interp, argc, argv) } static int +target_stop_wrapper (args) + char * args; +{ + target_stop (); + return 1; +} + +static int gdb_stop (clientData, interp, argc, argv) ClientData clientData; Tcl_Interp *interp; @@ -1377,7 +1387,10 @@ gdb_stop (clientData, interp, argc, argv) char *argv[]; { if (target_stop) - target_stop (); + { + catch_errors (target_stop_wrapper, NULL, "", + RETURN_MASK_ALL); + } else quit_flag = 1; /* hope something sees this */ @@ -1751,19 +1764,27 @@ static void x_event (signo) int signo; { + static int in_x_event = 0; + static Tcl_Obj *varname = NULL; + + if (in_x_event || in_fputs) + return; + + in_x_event = 1; + /* Process pending events */ while (Tcl_DoOneEvent (TCL_DONT_WAIT|TCL_ALL_EVENTS) != 0) ; - - /* If we are doing a download, see if the download should be - cancelled. FIXME: We should use a better variable name. */ if (load_in_progress) { - char *val; - - val = Tcl_GetVar (interp, "download_cancel_ok", TCL_GLOBAL_ONLY); - if (val != NULL && atoi (val)) + int val; + if (varname == NULL) + { + Tcl_Obj *varnamestrobj = Tcl_NewStringObj("download_cancel_ok",-1); + varname = Tcl_ObjGetVar2(interp,varnamestrobj,NULL,TCL_GLOBAL_ONLY); + } + if ((Tcl_GetIntFromObj(interp,varname,&val) == TCL_OK) && val) { quit_flag = 1; #ifdef REQUEST_QUIT @@ -1774,6 +1795,7 @@ x_event (signo) #endif } } + in_x_event = 0; } #ifdef __CYGWIN32__ @@ -1782,55 +1804,51 @@ x_event (signo) messages. FIXME: It would be better to not poll, but to instead rewrite the target_wait routines to serve as input sources. Unfortunately, that will be a lot of work. */ +static sigset_t nullsigmask; +static struct sigaction act1, act2; +static struct itimerval it_on, it_off; static void gdbtk_start_timer () { - sigset_t nullsigmask; - struct sigaction action; - struct itimerval it; + static int first = 1; + /*TclDebug ("Starting timer....");*/ + if (first) + { + /* first time called, set up all the structs */ + first = 0; + sigemptyset (&nullsigmask); - /*TclDebug ("Starting timer....");*/ - sigemptyset (&nullsigmask); + act1.sa_handler = x_event; + act1.sa_mask = nullsigmask; + act1.sa_flags = 0; - action.sa_handler = x_event; - action.sa_mask = nullsigmask; - action.sa_flags = 0; - sigaction (SIGALRM, &action, NULL); - - it.it_interval.tv_sec = 0; - /* Check for messages twice a second. */ - it.it_interval.tv_usec = 500 * 1000; - it.it_value.tv_sec = 0; - it.it_value.tv_usec = 500 * 1000; + act2.sa_handler = SIG_IGN; + act2.sa_mask = nullsigmask; + act2.sa_flags = 0; - setitimer (ITIMER_REAL, &it, NULL); + it_on.it_interval.tv_sec = 0; + it_on.it_interval.tv_usec = 500000; /* .5 sec */ + it_on.it_value.tv_sec = 0; + it_on.it_value.tv_usec = 500000; + it_off.it_interval.tv_sec = 0; + it_off.it_interval.tv_usec = 0; + it_off.it_value.tv_sec = 0; + it_off.it_value.tv_usec = 0; + } + sigaction (SIGALRM, &act1, NULL); + setitimer (ITIMER_REAL, &it_on, NULL); gdbtk_timer_going = 1; } static void gdbtk_stop_timer () { - sigset_t nullsigmask; - struct sigaction action; - struct itimerval it; - gdbtk_timer_going = 0; - /*TclDebug ("Stopping timer.");*/ - sigemptyset (&nullsigmask); - - action.sa_handler = SIG_IGN; - action.sa_mask = nullsigmask; - action.sa_flags = 0; - sigaction (SIGALRM, &action, NULL); - - it.it_interval.tv_sec = 0; - it.it_interval.tv_usec = 0; - it.it_value.tv_sec = 0; - it.it_value.tv_usec = 0; - setitimer (ITIMER_REAL, &it, NULL); + setitimer (ITIMER_REAL, &it_off, NULL); + sigaction (SIGALRM, &act2, NULL); } #endif @@ -1977,6 +1995,10 @@ gdbtk_init ( argv0 ) Tcl_FindExecutable (argv0); interp = Tcl_CreateInterp (); +#ifdef TCL_MEM_DEBUG + Tcl_InitMemory (interp); +#endif + if (!interp) error ("Tcl_CreateInterp failed"); @@ -3079,6 +3101,8 @@ gdb_loadfile (clientData, interp, objc, objv) symtab = full_lookup_symtab (file); if (!symtab) { + sprintf(msg, "File not found"); + Tcl_SetStringObj ( Tcl_GetObjResult (interp), msg, -1); fclose (fp); return TCL_ERROR; } @@ -3145,14 +3169,14 @@ gdb_loadfile (clientData, interp, objc, objv) if (ltable[ln >> 3] & (1 << (ln % 8))) a[0]->length = sprintf (buf,"%s insert end {-\t%d} break_tag", widget, ln); else - a[0]->length = sprintf (buf,"%s insert end {\t%d} \"\"", widget, ln); + a[0]->length = sprintf (buf,"%s insert end { \t%d} \"\"", widget, ln); } else { if (ltable[ln >> 3] & (1 << (ln % 8))) a[0]->length = sprintf (buf,"%s insert end {-\t} break_tag", widget); else - a[0]->length = sprintf (buf,"%s insert end {\t} \"\"", widget); + a[0]->length = sprintf (buf,"%s insert end { \t} \"\"", widget); } b[0]->length = strlen(b[0]->bytes); Tcl_SetListObj(a[1],2,b); -- 2.7.4