From: Prasanna Kumar T S M Date: Mon, 24 Sep 2012 19:05:01 +0000 (+0530) Subject: Remove some usage of 64bit functions (minix/u64.h) X-Git-Tag: v3.2.1~282 X-Git-Url: http://zhaoyanbai.com/repos/rndc.html?a=commitdiff_plain;h=8de781761f7cf607dacc7d2606f755d20d6a9245;p=minix.git Remove some usage of 64bit functions (minix/u64.h) . Removed the usage of 64 bit functions in top.c. Compiles successfully. . Scaling 64 bit values to 32 bit is removed. . Retain make64 instead of using | with shift. . Add order cycling display --- diff --git a/commands/atnormalize/atnormalize.c b/commands/atnormalize/atnormalize.c index a1e66fe1d..bc02b7cf7 100644 --- a/commands/atnormalize/atnormalize.c +++ b/commands/atnormalize/atnormalize.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include diff --git a/commands/devsize/devsize.c b/commands/devsize/devsize.c index cda9355bd..a85d20821 100644 --- a/commands/devsize/devsize.c +++ b/commands/devsize/devsize.c @@ -7,7 +7,6 @@ #include #include #include -#include #include #include #include @@ -48,6 +47,6 @@ char *device; exit(1); } close(fd); - d = div64u(entry.size, 512); + d = entry.size / 512; return d; } diff --git a/commands/readall/readall.c b/commands/readall/readall.c index cdc173071..88b766318 100644 --- a/commands/readall/readall.c +++ b/commands/readall/readall.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include @@ -84,7 +83,7 @@ char *argv[]; { struct partition entry; int fd, s, i, badprinted; - long b = 0, nblocks; + u64_t b = 0, nblocks; char *p; time_t starttime; @@ -118,13 +117,13 @@ char *argv[]; perror("ioctl DIOCGETP"); return 1; } - nblocks = div64u(entry.size, BLOCK_SIZE); + nblocks = entry.size / BLOCK_SIZE; time(&starttime); /* Read the entire file. Try it in large chunks, but if an error * occurs, go to single reads for a while. */ while (1) { - if(lseek64(fd, mul64u(BLOCK_SIZE, b), SEEK_SET, NULL) < 0) { + if(lseek64(fd, (BLOCK_SIZE * b), SEEK_SET, NULL) < 0) { perror("lseek64"); return 1; } @@ -162,7 +161,7 @@ char *argv[]; output(b); fprintf(stderr, "\n"); } else fprintf(stderr, "\r%*s\n", -WIDTH, "Done scanning."); - if (total) printf("%8ld\n", b); + if (total) printf("%8lld\n", b); if ((errors == 0) || total) exit(0); badprinted = 0; if (normal) printf("Summary of bad blocks\n"); diff --git a/commands/repartition/repartition.c b/commands/repartition/repartition.c index 463bdd584..0e536d937 100644 --- a/commands/repartition/repartition.c +++ b/commands/repartition/repartition.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include @@ -249,8 +248,8 @@ int main(int argc, char **argv) if (diocntl(hdst.st_rdev, DGETP, &whole) < 0) fatal(dev_file); /* Use sector numbers. */ - base = div64u(whole.base, SECTOR_SIZE); - size = div64u(whole.size, SECTOR_SIZE); + base = whole.base / SECTOR_SIZE; + size = whole.size / SECTOR_SIZE; limit = base + size; show_part(dev_file, base, size); @@ -271,8 +270,8 @@ int main(int argc, char **argv) pe->size= part_limit - pe->lowsec; } - entry.base= mul64u(pe->lowsec, SECTOR_SIZE); - entry.size= mul64u(pe->size, SECTOR_SIZE); + entry.base= pe->lowsec * SECTOR_SIZE; + entry.size= pe->size * SECTOR_SIZE; if (diocntl(makedev(hd_major, device), DSETP, &entry) < 0) fatal(dev_file); diff --git a/commands/time/time.c b/commands/time/time.c index 7a0fd9675..651d244c6 100644 --- a/commands/time/time.c +++ b/commands/time/time.c @@ -11,7 +11,7 @@ #include #include #include -#include +// #include #include /* -DNEW prints time to 0.01 sec. */ @@ -89,7 +89,7 @@ char *argv[]; times(&pre_buf); } while (wait(&status) != pid); read_tsc_64(&end_tsc); - spent_tsc = sub64(end_tsc, start_tsc); + spent_tsc = end_tsc - start_tsc; #if _VMD_EXT (void) sysutime(UTIME_TIMEOFDAY, &end_time); real_time = (end_time.tv_sec - start_time.tv_sec) * CLOCKS_PER_SEC diff --git a/usr.bin/top/top.c b/usr.bin/top/top.c index 5a8ccbd4e..7b3fd2262 100644 --- a/usr.bin/top/top.c +++ b/usr.bin/top/top.c @@ -40,6 +40,7 @@ #include #define TIMECYCLEKEY 't' +#define ORDERKEY 'o' #define ORDER_CPU 0 #define ORDER_MEMORY 1 @@ -169,7 +170,7 @@ void parse_file(pid_t pid) &cycles_hi, &cycles_lo) == 2) { p->p_cpucycles[i] = make64(cycles_lo, cycles_hi); } else { - p->p_cpucycles[i] = make64(0, 0); + p->p_cpucycles[i] = 0; } } @@ -233,10 +234,10 @@ void get_procs(void) int print_memory(void) { FILE *fp; - unsigned int pagesize; + unsigned int pagesize; unsigned long total, free, largest, cached; - if ((fp = fopen("meminfo", "r")) == NULL) + if ((fp = fopen("meminfo", "r")) == NULL) return 0; if (fscanf(fp, "%u %lu %lu %lu %lu", &pagesize, &total, &free, @@ -294,7 +295,6 @@ struct tp { int cmp_procs(const void *v1, const void *v2) { - int c; struct tp *p1 = (struct tp *) v1, *p2 = (struct tp *) v2; int p1blocked, p2blocked; @@ -308,7 +308,7 @@ int cmp_procs(const void *v1, const void *v2) p2blocked = !!(p2->p->p_flags & BLOCKED); /* Primarily order by used number of cpu cycles. - * + * * Exception: if in blockedverbose mode, a blocked * process is always printed after an unblocked * process, and used cpu cycles don't matter. @@ -321,8 +321,9 @@ int cmp_procs(const void *v1, const void *v2) return -1; if(!p2blocked && p1blocked) return 1; - } else if((c=cmp64(p1->ticks, p2->ticks)) != 0) - return -c; + } else if(p1->ticks != p2->ticks) { + return (p2->ticks - p1->ticks); + } /* Process slot number is a tie breaker. */ return (int) (p1->p - p2->p); @@ -342,24 +343,14 @@ struct tp *lookup(endpoint_t who, struct tp *tptab, int np) return NULL; } -/* - * since we don't have true div64(u64_t, u64_t) we scale the 64 bit counters to - * 32. Since the samplig happens every ~1s and the counters count CPU cycles - * during this period, unless we have extremely fast CPU, shifting the counters - * by 12 make them 32bit counters which we can use for normal integer - * arithmetics - */ -#define SCALE (1 << 12) - double ktotal = 0; -void print_proc(struct tp *tp, u32_t tcyc) +void print_proc(struct tp *tp, u64_t total_ticks) { int euid = 0; static struct passwd *who = NULL; static int last_who = -1; char *name = ""; - unsigned long pcyc; int ticks; struct proc *pr = tp->p; @@ -385,9 +376,7 @@ void print_proc(struct tp *tp, u32_t tcyc) ticks = pr->p_user_time; printf(" %3u:%02u ", (ticks/system_hz/60), (ticks/system_hz)%60); - pcyc = div64u(tp->ticks, SCALE); - - printf("%6.2f%% %s", 100.0*pcyc/tcyc, name); + printf("%6.2f%% %s", 100.0 * tp->ticks / total_ticks, name); } char *cputimemodename(int cputimemode) @@ -396,7 +385,7 @@ char *cputimemodename(int cputimemode) int i; name[0] = '\0'; - + for(i = 0; i < CPUTIMENAMES; i++) { if(CPUTIME(cputimemode, i)) { assert(strlen(name) + @@ -412,32 +401,38 @@ char *cputimemodename(int cputimemode) u64_t cputicks(struct proc *p1, struct proc *p2, int timemode) { int i; - u64_t t = make64(0, 0); + u64_t t = 0; for(i = 0; i < CPUTIMENAMES; i++) { - if(!CPUTIME(timemode, i)) + if(!CPUTIME(timemode, i)) continue; if(p1->p_endpoint == p2->p_endpoint) { - t = add64(t, sub64(p2->p_cpucycles[i], - p1->p_cpucycles[i])); + t = t + p2->p_cpucycles[i] - p1->p_cpucycles[i]; } else { - t = add64(t, p2->p_cpucycles[i]); + t = t + p2->p_cpucycles[i]; } } return t; } +char *ordername(int orderno) +{ + switch(orderno) { + case ORDER_CPU: return "cpu"; + case ORDER_MEMORY: return "memory"; + } + return "invalid order"; +} + void print_procs(int maxlines, struct proc *proc1, struct proc *proc2, int cputimemode) { int p, nprocs; - u64_t idleticks = cvu64(0); - u64_t kernelticks = cvu64(0); - u64_t systemticks = cvu64(0); - u64_t userticks = cvu64(0); - u64_t total_ticks = cvu64(0); - unsigned long tcyc; - unsigned long tmp; + u64_t idleticks = 0; + u64_t kernelticks = 0; + u64_t systemticks = 0; + u64_t userticks = 0; + u64_t total_ticks = 0; int blockedseen = 0; static struct tp *tick_procs = NULL; @@ -457,7 +452,7 @@ void print_procs(int maxlines, tick_procs[nprocs].p = proc2 + p; tick_procs[nprocs].ticks = cputicks(&proc1[p], &proc2[p], cputimemode); uticks = cputicks(&proc1[p], &proc2[p], 1); - total_ticks = add64(total_ticks, uticks); + total_ticks = total_ticks + uticks; if(p-NR_TASKS == IDLE) { idleticks = uticks; continue; @@ -467,40 +462,30 @@ void print_procs(int maxlines, } if(!(proc2[p].p_flags & IS_TASK)) { if(proc2[p].p_flags & IS_SYSTEM) - systemticks = add64(systemticks, - tick_procs[nprocs].ticks); + systemticks = systemticks + tick_procs[nprocs].ticks; else - userticks = add64(userticks, - tick_procs[nprocs].ticks); + userticks = userticks + tick_procs[nprocs].ticks; } nprocs++; } - if (!cmp64u(total_ticks, 0)) + if (total_ticks == 0) return; qsort(tick_procs, nprocs, sizeof(tick_procs[0]), cmp_procs); - tcyc = div64u(total_ticks, SCALE); - - tmp = div64u(userticks, SCALE); - printf("CPU states: %6.2f%% user, ", 100.0*(tmp)/tcyc); - - tmp = div64u(systemticks, SCALE); - printf("%6.2f%% system, ", 100.0*tmp/tcyc); - - tmp = div64u(kernelticks, SCALE); - printf("%6.2f%% kernel, ", 100.0*tmp/tcyc); - - tmp = div64u(idleticks, SCALE); - printf("%6.2f%% idle", 100.0*tmp/tcyc); + printf("CPU states: %6.2f%% user, ", 100.0 * userticks / total_ticks); + printf("%6.2f%% system, ", 100.0 * systemticks / total_ticks); + printf("%6.2f%% kernel, ", 100.0 * kernelticks/ total_ticks); + printf("%6.2f%% idle", 100.0 * idleticks / total_ticks); -#define NEWLINE do { printf("\n"); if(--maxlines <= 0) { return; } } while(0) +#define NEWLINE do { printf("\n"); if(--maxlines <= 0) { return; } } while(0) NEWLINE; - printf("CPU time displayed (press '%c' to cycle): %s", + printf("CPU time displayed ('%c' to cycle): %s; ", TIMECYCLEKEY, cputimemodename(cputimemode)); + printf(" sort order ('%c' to cycle): %s", ORDERKEY, ordername(order)); NEWLINE; NEWLINE; @@ -528,7 +513,7 @@ void print_procs(int maxlines, blockedseen = 1; } - print_proc(&tick_procs[p], tcyc); + print_proc(&tick_procs[p], total_ticks); NEWLINE; if(!blockedverbose) @@ -552,7 +537,7 @@ void print_procs(int maxlines, tpdep = lookup(dep, tick_procs, nprocs); pr = tpdep->p; printf("%*s> ", level, ""); - print_proc(tpdep, tcyc); + print_proc(tpdep, total_ticks); NEWLINE; } } @@ -675,7 +660,7 @@ int main(int argc, char *argv[]) } } - if(s < 1) + if(s < 1) s = 2; /* Catch window size changes so display is updated properly