diff options
Diffstat (limited to 'apps/demo/main.c')
| -rw-r--r-- | apps/demo/main.c | 325 |
1 files changed, 163 insertions, 162 deletions
diff --git a/apps/demo/main.c b/apps/demo/main.c index d74a2d3..800b0d0 100644 --- a/apps/demo/main.c +++ b/apps/demo/main.c @@ -1,4 +1,4 @@ -/* +/* * This file is a simple example of an application that could be run * on top of the monitor. * @@ -29,8 +29,8 @@ extern void strace_demo(void); void hitakey(void) { - while(!mon_gotachar()); - mon_getchar(); + while(!mon_gotachar()); + mon_getchar(); } /* timer_demo(): @@ -42,84 +42,83 @@ hitakey(void) void timer_demo(void) { - struct elapsed_tmr tmr; - unsigned long starttime, endtime; - - /* Here are a few different ways (using the uMon API) to wait for - * three seconds... - * - * First make sure the underlying monitor has a Hardware-based - * timer. If it doesn't then this is worthless. - */ - mon_timer(TIMER_QUERY,&tmr); - if ((HWRTMR_IS_ENABLED(&tmr)) == 0) { - mon_printf("This monitor doesn't have INCLUDE_HWTMR configured\n"); - return; - } - - mon_printf("Timer demo ready to start, hit a key to continue\n"); - hitakey(); - - /***************************************************************** - * - * The first one, also the simplest, but least versatile is to just - * use mon_delay(). The mon_delay function just takes the number - * of milliseconds you want to wait, and uses the underlying hardware - * to busy wait on that duration... - */ - mon_printf("1. Wait for 3 seconds...\n"); - mon_delay(3000); - mon_printf("1. Done, hit a key to continue\n"); - hitakey(); - - /***************************************************************** - * - * The second one, allows the user to specify the elapsed time - * (in milliseconds), then allows the user to poll waiting for that - * time to expire. Meanwhile, the application can do other things - * while it waits. - */ - mon_printf("2. Wait for 3 seconds...\n"); - tmr.start = 3000; - mon_timer(TIMER_START,&tmr); - while(mon_timer(TIMER_ELAPSED,&tmr) == 0) { - /* Do whatever you like here. */ - } - mon_printf("2. Done, hit a key to continue\n"); - hitakey(); - - /***************************************************************** - * - * The third method, uses the granularity of the hardware clock - * and the returned value of "ticks-per-millisecond". It provides - * the most versatility (without actually knowing the details of - * the hardware clock), but requires the most work. Note that we - * have to deal with the possiblity of 32-bit timer value wrap. - */ - mon_printf("3. Wait for 3 seconds...\n"); - mon_timer(TIMER_QUERY,&tmr); - starttime = tmr.currenttmrval; - endtime = starttime + 3000 * tmr.tpm; - if (endtime < starttime) { - do { - mon_timer(TIMER_QUERY,&tmr); - } while(tmr.currenttmrval > starttime); - do { - mon_timer(TIMER_QUERY,&tmr); - } while(tmr.currenttmrval < endtime); - } - else { - do { - mon_timer(TIMER_QUERY,&tmr); - } while((tmr.currenttmrval > starttime) && - (tmr.currenttmrval < endtime)); - } - - mon_printf("3. Done, hit a key to continue\n"); - while(!mon_gotachar()); - - mon_printf("Timer demo done\n"); - mon_appexit(1); + struct elapsed_tmr tmr; + unsigned long starttime, endtime; + + /* Here are a few different ways (using the uMon API) to wait for + * three seconds... + * + * First make sure the underlying monitor has a Hardware-based + * timer. If it doesn't then this is worthless. + */ + mon_timer(TIMER_QUERY,&tmr); + if((HWRTMR_IS_ENABLED(&tmr)) == 0) { + mon_printf("This monitor doesn't have INCLUDE_HWTMR configured\n"); + return; + } + + mon_printf("Timer demo ready to start, hit a key to continue\n"); + hitakey(); + + /***************************************************************** + * + * The first one, also the simplest, but least versatile is to just + * use mon_delay(). The mon_delay function just takes the number + * of milliseconds you want to wait, and uses the underlying hardware + * to busy wait on that duration... + */ + mon_printf("1. Wait for 3 seconds...\n"); + mon_delay(3000); + mon_printf("1. Done, hit a key to continue\n"); + hitakey(); + + /***************************************************************** + * + * The second one, allows the user to specify the elapsed time + * (in milliseconds), then allows the user to poll waiting for that + * time to expire. Meanwhile, the application can do other things + * while it waits. + */ + mon_printf("2. Wait for 3 seconds...\n"); + tmr.start = 3000; + mon_timer(TIMER_START,&tmr); + while(mon_timer(TIMER_ELAPSED,&tmr) == 0) { + /* Do whatever you like here. */ + } + mon_printf("2. Done, hit a key to continue\n"); + hitakey(); + + /***************************************************************** + * + * The third method, uses the granularity of the hardware clock + * and the returned value of "ticks-per-millisecond". It provides + * the most versatility (without actually knowing the details of + * the hardware clock), but requires the most work. Note that we + * have to deal with the possiblity of 32-bit timer value wrap. + */ + mon_printf("3. Wait for 3 seconds...\n"); + mon_timer(TIMER_QUERY,&tmr); + starttime = tmr.currenttmrval; + endtime = starttime + 3000 * tmr.tpm; + if(endtime < starttime) { + do { + mon_timer(TIMER_QUERY,&tmr); + } while(tmr.currenttmrval > starttime); + do { + mon_timer(TIMER_QUERY,&tmr); + } while(tmr.currenttmrval < endtime); + } else { + do { + mon_timer(TIMER_QUERY,&tmr); + } while((tmr.currenttmrval > starttime) && + (tmr.currenttmrval < endtime)); + } + + mon_printf("3. Done, hit a key to continue\n"); + while(!mon_gotachar()); + + mon_printf("Timer demo done\n"); + mon_appexit(1); } /* Global variables added just to be able to use this @@ -131,64 +130,66 @@ long apprambase; int main(int argc,char *argv[]) { - int i, tfd; - char line[80], *ab, *filename; - - argtot = argc; - - /* If argument count is greater than one, then dump out the - * set of CLI arguments... - */ - if (argc > 1) { - if ((argc == 2) && (strcmp(argv[1],"strace_demo") == 0)) - strace_demo(); - - if ((argc == 2) && (strcmp(argv[1],"timer") == 0)) - timer_demo(); - - mon_printf("Argument list...\n"); - for(i=0;i<argc;i++) { - mon_printf(" arg[%d]: %s\n",i,argv[i]); - if (strcmp(argv[i],"match") == 0) - mon_printf("got a match!\n"); - } - } - - /* Using the content of the shell variable APPRAMBASE, dump the - * memory starting at that location... - */ - ab = mon_getenv("APPRAMBASE"); - if (ab) { - char *addr = (char *)strtoul(ab,0,0); - apprambase = strtoul(ab,0,0); - - mon_printf("Dumping memory at 0x%lx...\n",addr); - mon_printmem(addr,128,1); - } - - filename = "monrc"; - - /* If the 'monrc' file exists, the assume it is ASCII and dump it - * line by line... - */ - if (mon_tfsstat(filename)) { - mon_printf("Dumping content of '%s'...\n",filename); - - tfd = mon_tfsopen(filename,TFS_RDONLY,0); - if (tfd >= 0) { - while(mon_tfsgetline(tfd,line,sizeof(line))) - mon_printf("%s",line); - mon_tfsclose(tfd,0); - } - else { - mon_printf("TFS error: %s\n", - (char *)mon_tfsctrl(TFS_ERRMSG,tfd,0)); - } - } - else { - mon_printf("File '%s' not found\n",filename); - } - return(0); + int i, tfd; + char line[80], *ab, *filename; + + argtot = argc; + + /* If argument count is greater than one, then dump out the + * set of CLI arguments... + */ + if(argc > 1) { + if((argc == 2) && (strcmp(argv[1],"strace_demo") == 0)) { + strace_demo(); + } + + if((argc == 2) && (strcmp(argv[1],"timer") == 0)) { + timer_demo(); + } + + mon_printf("Argument list...\n"); + for(i=0; i<argc; i++) { + mon_printf(" arg[%d]: %s\n",i,argv[i]); + if(strcmp(argv[i],"match") == 0) { + mon_printf("got a match!\n"); + } + } + } + + /* Using the content of the shell variable APPRAMBASE, dump the + * memory starting at that location... + */ + ab = mon_getenv("APPRAMBASE"); + if(ab) { + char *addr = (char *)strtoul(ab,0,0); + apprambase = strtoul(ab,0,0); + + mon_printf("Dumping memory at 0x%lx...\n",addr); + mon_printmem(addr,128,1); + } + + filename = "monrc"; + + /* If the 'monrc' file exists, the assume it is ASCII and dump it + * line by line... + */ + if(mon_tfsstat(filename)) { + mon_printf("Dumping content of '%s'...\n",filename); + + tfd = mon_tfsopen(filename,TFS_RDONLY,0); + if(tfd >= 0) { + while(mon_tfsgetline(tfd,line,sizeof(line))) { + mon_printf("%s",line); + } + mon_tfsclose(tfd,0); + } else { + mon_printf("TFS error: %s\n", + (char *)mon_tfsctrl(TFS_ERRMSG,tfd,0)); + } + } else { + mon_printf("File '%s' not found\n",filename); + } + return(0); } void @@ -199,33 +200,33 @@ __gccmain() int Cstart(void) { - char **argv; - int argc; + char **argv; + int argc; - /* Connect the application to the monitor. This must be done - * prior to the application making any other attempts to use the - * "mon_" functions provided by the monitor. - */ - monConnect((int(*)())(*(unsigned long *)MONCOMPTR),(void *)0,(void *)0); + /* Connect the application to the monitor. This must be done + * prior to the application making any other attempts to use the + * "mon_" functions provided by the monitor. + */ + monConnect((int(*)())(*(unsigned long *)MONCOMPTR),(void *)0,(void *)0); - /* When the monitor starts up an application, it stores the argument - * list internally. The call to mon_getargv() retrieves the arg list - * for use by this application... - */ - mon_getargv(&argc,&argv); + /* When the monitor starts up an application, it stores the argument + * list internally. The call to mon_getargv() retrieves the arg list + * for use by this application... + */ + mon_getargv(&argc,&argv); - /* Call main, then exit to monitor. - */ - main(argc,argv); + /* Call main, then exit to monitor. + */ + main(argc,argv); - mon_appexit(0); + mon_appexit(0); - /* Won't get here. */ - return(0); + /* Won't get here. */ + return(0); } /* CstartAlt(): - * Demonstrates the use of the "call -a" command in uMon. + * Demonstrates the use of the "call -a" command in uMon. * For example, if for some reason you wanted to do this... * Load the application then load the symtbl file using * "make TARGET_IP=1.2.3.4 sym", then issue these commands: @@ -243,8 +244,8 @@ Cstart(void) int CstartAlt(int argc, char *argv[]) { - monConnect((int(*)())(*(unsigned long *)MONCOMPTR),(void *)0,(void *)0); - main(argc,argv); - mon_appexit(0); - return(0); + monConnect((int(*)())(*(unsigned long *)MONCOMPTR),(void *)0,(void *)0); + main(argc,argv); + mon_appexit(0); + return(0); } |