| 1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * %sccs.include.redist.c% |
| 6 | */ |
| 7 | |
| 8 | #ifndef lint |
| 9 | static char sccsid[] = "@(#)nlist.c 5.7 (Berkeley) %G%"; |
| 10 | #endif /* not lint */ |
| 11 | |
| 12 | #include <sys/param.h> |
| 13 | #include <sys/time.h> |
| 14 | #include <sys/proc.h> |
| 15 | #include <sys/resource.h> |
| 16 | #include <nlist.h> |
| 17 | #include <errno.h> |
| 18 | #include <stdio.h> |
| 19 | #include <string.h> |
| 20 | #include <kvm.h> |
| 21 | #include "ps.h" |
| 22 | |
| 23 | #ifdef SPPWAIT |
| 24 | #define NEWVM |
| 25 | #endif |
| 26 | |
| 27 | struct nlist psnl[] = { |
| 28 | {"_fscale"}, |
| 29 | #define X_FSCALE 0 |
| 30 | {"_ccpu"}, |
| 31 | #define X_CCPU 1 |
| 32 | #ifdef NEWVM |
| 33 | {"_avail_start"}, |
| 34 | #define X_AVAILSTART 2 |
| 35 | {"_avail_end"}, |
| 36 | #define X_AVAILEND 3 |
| 37 | #else |
| 38 | {"_ecmx"}, |
| 39 | #define X_ECMX 2 |
| 40 | #endif |
| 41 | {NULL} |
| 42 | }; |
| 43 | |
| 44 | fixpt_t ccpu; /* kernel _ccpu variable */ |
| 45 | int nlistread; /* if nlist already read. */ |
| 46 | int mempages; /* number of pages of phys. memory */ |
| 47 | int fscale; /* kernel _fscale variable */ |
| 48 | |
| 49 | extern kvm_t *kd; |
| 50 | |
| 51 | #define kread(x, v) \ |
| 52 | kvm_read(kd, psnl[x].n_value, (char *)&v, sizeof v) != sizeof(v) |
| 53 | |
| 54 | int |
| 55 | donlist() |
| 56 | { |
| 57 | extern int eval; |
| 58 | int rval; |
| 59 | #ifdef NEWVM |
| 60 | int tmp; |
| 61 | #endif |
| 62 | |
| 63 | rval = 0; |
| 64 | nlistread = 1; |
| 65 | if (kvm_nlist(kd, psnl)) { |
| 66 | nlisterr(psnl); |
| 67 | eval = 1; |
| 68 | return(1); |
| 69 | } |
| 70 | if (kread(X_FSCALE, fscale)) { |
| 71 | (void)fprintf(stderr, "ps: fscale: %s\n", kvm_geterr(kd)); |
| 72 | eval = rval = 1; |
| 73 | } |
| 74 | #ifdef NEWVM |
| 75 | if (kread(X_AVAILEND, mempages)) { |
| 76 | (void)fprintf(stderr, "ps: avail_start: %s\n", kvm_geterr(kd)); |
| 77 | eval = rval = 1; |
| 78 | } |
| 79 | if (kread(X_AVAILSTART, tmp)) { |
| 80 | (void)fprintf(stderr, "ps: avail_end: %s\n", kvm_geterr(kd)); |
| 81 | eval = rval = 1; |
| 82 | } |
| 83 | mempages -= tmp; |
| 84 | #else |
| 85 | if (kread(X_ECMX, mempages)) { |
| 86 | (void)fprintf(stderr, "ps: ecmx: %s\n", kvm_geterr(kd)); |
| 87 | eval = rval = 1; |
| 88 | } |
| 89 | #endif |
| 90 | if (kread(X_CCPU, ccpu)) { |
| 91 | (void)fprintf(stderr, "ps: ccpu: %s\n", kvm_geterr(kd)); |
| 92 | eval = rval = 1; |
| 93 | } |
| 94 | return(rval); |
| 95 | } |
| 96 | |
| 97 | void |
| 98 | nlisterr(nl) |
| 99 | struct nlist nl[]; |
| 100 | { |
| 101 | int i; |
| 102 | |
| 103 | (void)fprintf(stderr, "ps: nlist: can't find following symbols:"); |
| 104 | for (i = 0; nl[i].n_name != NULL; i++) |
| 105 | if (nl[i].n_value == 0) |
| 106 | (void)fprintf(stderr, " %s", nl[i].n_name); |
| 107 | (void)fprintf(stderr, "\n"); |
| 108 | } |