bts_dump.c

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#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>

#include <bts.h>

static void bts_show(const char *fname);

struct symmap symmap[] = {
    /* user space */
    {
    .symfile = NULL,
    .prefix  = "User:",
    .loaddr  = 0x08000000,
    .hiaddr  = 0xBFFFFFFF
    },
    /* Linux kernel */
    {
    .symfile = "/boot/vmlinux-syms-2.6.18-xenU",
    .prefix  = "",
    .loaddr  = 0xC0000000,
    .hiaddr  = 0xF67FFFFF
    },
    /* Xen */
    {
    .symfile = "/boot/xen-syms-3.0-unstable",
    .prefix  = "Xen:",
    .loaddr  = 0xF6800000,
    .hiaddr  = 0xFFFFFFFF
    }
};

int debug = 0;
int symbolic = 0;
int gdbstyle = 0;
char *userbin = NULL;

int main(int argc, char **argv)
{
    char ch;

    while ((ch = getopt(argc, argv, "dSGU:")) != -1) {
    switch(ch) {
    case 'd':
        debug++;
        break;
    case 'S':
        symbolic++;
        break;
    case 'G':
        gdbstyle++;
        break;
    case 'U':
        userbin = optarg;
        break;
    }
    }
    argc -= optind;
    argv += optind;

    if (argc < 1) {
    fprintf(stderr, "Usage: bts-dump [-dS] filename ...\n");
    exit(1);
    }

    if (userbin)
    symmap[0].symfile = userbin;

    /*
     * Open symbol files.
     */
    if (symbolic && symlist_init(symmap, sizeof(symmap)/sizeof(symmap[0])))
    exit(1);

    while (argc) {
    bts_show(*argv);
    argc--, argv++;
    }

    exit(0);
}

static void bts_show(const char *fname)
{
    struct bts_rec recs[1024];
    int n, i, extended = 0;
    long long tot = 0;

    BTSFD fd = bts_open(fname);
    if (fd == 0) {
    fprintf(stderr, "Could not open stream\n");
    return;
    }

    while (1) {
    n = bts_read(fd, recs, 1024);
    if (n == 0)
        break;

    i = 0;

    /* see if this is extended format */
    if (tot == 0 && recs[0].from == UINT64_MAX &&
        recs[0].to == UINT64_MAX && recs[0].format == UINT64_MAX) {
        if (debug)
        fprintf(stderr, "Dump file in extended format\n");
        extended++;
        i++;
    }

    while (i < n) {
        if (extended)
        printf("%012lld: ", recs[i].format);
        else
        printf("%lld: ", tot+i);
        if (symbolic) {
        char s1[256], s2[256];
        if (gdbstyle) {
            symlist_gdb_string(recs[i].from, s1, sizeof(s1));
            symlist_gdb_string(recs[i].to, s2, sizeof(s2));
        } else {
            symlist_string(recs[i].from, s1, sizeof(s1));
            symlist_string(recs[i].to, s2, sizeof(s2));
        }
        printf("%s -> %s\n", s1, s2);
        } else {
        printf("0x%08llx -> 0x%08llx\n", recs[i].from, recs[i].to);
        }
        i++;
    }
    tot += n;
    }

    bts_close(fd);
}

/*
 * Local variables:
 * mode: C
 * c-set-style: "BSD"
 * c-basic-offset: 4
 * End:
 */