jdk/src/demo/share/jvmti/hprof/hprof_check.c
changeset 25859 3317bb8137f4
parent 14342 8435a30053c1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/demo/share/jvmti/hprof/hprof_check.c	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,1152 @@
+/*
+ * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This source code is provided to illustrate the usage of a given feature
+ * or technique and has been deliberately simplified. Additional steps
+ * required for a production-quality application, such as security checks,
+ * input validation and proper error handling, might not be present in
+ * this sample code.
+ */
+
+
+/* Functionality for checking hprof format=b output. */
+
+/* ONLY used with logflags=4. */
+
+/* Verifies and write a verbose textual version of a format=b file.
+ *   Textual output file is gdata->checkfilename, fd is gdata->check_fd.
+ *   Buffer is in gdata too, see gdata->check* variables.
+ *   Could probably be isolated to a separate library or utility.
+ */
+
+#include "hprof.h"
+
+typedef TableIndex HprofId;
+
+#include "hprof_b_spec.h"
+
+static int type_size[ /*HprofType*/ ] =  HPROF_TYPE_SIZES;
+
+/* For map from HPROF_UTF8 to a string */
+typedef struct UmapInfo {
+    char *str;
+} UmapInfo;
+
+/* Field information */
+typedef struct Finfo {
+    HprofId   id;
+    HprofType ty;
+} Finfo;
+
+/* Class information map from class ID (ClassIndex) to class information */
+typedef struct CmapInfo {
+    int      max_finfo;
+    int      n_finfo;
+    Finfo   *finfo;
+    int      inst_size;
+    HprofId  sup;
+} CmapInfo;
+
+/* Read raw bytes from the file image, update the pointer */
+static void
+read_raw(unsigned char **pp, unsigned char *buf, int len)
+{
+    while ( len > 0 ) {
+        *buf = **pp;
+        buf++;
+        (*pp)++;
+        len--;
+    }
+}
+
+/* Read various sized elements, properly converted from big to right endian.
+ *    File will contain big endian format.
+ */
+static unsigned
+read_u1(unsigned char **pp)
+{
+    unsigned char b;
+
+    read_raw(pp, &b, 1);
+    return b;
+}
+static unsigned
+read_u2(unsigned char **pp)
+{
+    unsigned short s;
+
+    read_raw(pp, (void*)&s, 2);
+    return md_htons(s);
+}
+static unsigned
+read_u4(unsigned char **pp)
+{
+    unsigned int u;
+
+    read_raw(pp, (void*)&u, 4);
+    return md_htonl(u);
+}
+static jlong
+read_u8(unsigned char **pp)
+{
+    unsigned int high;
+    unsigned int low;
+    jlong        x;
+
+    high = read_u4(pp);
+    low  = read_u4(pp);
+    x = high;
+    x = (x << 32) | low;
+    return x;
+}
+static HprofId
+read_id(unsigned char **pp)
+{
+    return (HprofId)read_u4(pp);
+}
+
+/* System error routine */
+static void
+system_error(const char *system_call, int rc, int errnum)
+{
+    char buf[256];
+    char details[256];
+
+    details[0] = 0;
+    if ( errnum != 0 ) {
+        md_system_error(details, (int)sizeof(details));
+    } else if ( rc >= 0 ) {
+        (void)strcpy(details,"Only part of buffer processed");
+    }
+    if ( details[0] == 0 ) {
+        (void)strcpy(details,"Unknown system error condition");
+    }
+    (void)md_snprintf(buf, sizeof(buf), "System %s failed: %s\n",
+                            system_call, details);
+    HPROF_ERROR(JNI_TRUE, buf);
+}
+
+/* Write to a fd */
+static void
+system_write(int fd, void *buf, int len)
+{
+    int res;
+
+    HPROF_ASSERT(fd>=0);
+    res = md_write(fd, buf, len);
+    if (res < 0 || res!=len) {
+        system_error("write", res, errno);
+    }
+}
+
+/* Flush check buffer */
+static void
+check_flush(void)
+{
+    if ( gdata->check_fd < 0 ) {
+        return;
+    }
+    if (gdata->check_buffer_index) {
+        system_write(gdata->check_fd, gdata->check_buffer, gdata->check_buffer_index);
+        gdata->check_buffer_index = 0;
+    }
+}
+
+/* Read out a given typed element */
+static jvalue
+read_val(unsigned char **pp, HprofType ty)
+{
+    jvalue        val;
+    static jvalue empty_val;
+
+    val = empty_val;
+    switch ( ty ) {
+        case 0:
+        case HPROF_ARRAY_OBJECT:
+        case HPROF_NORMAL_OBJECT:
+            val.i = read_id(pp);
+            break;
+        case HPROF_BYTE:
+        case HPROF_BOOLEAN:
+            val.b = read_u1(pp);
+            break;
+        case HPROF_CHAR:
+        case HPROF_SHORT:
+            val.s = read_u2(pp);
+            break;
+        case HPROF_FLOAT:
+        case HPROF_INT:
+            val.i = read_u4(pp);
+            break;
+        case HPROF_DOUBLE:
+        case HPROF_LONG:
+            val.j = read_u8(pp);
+            break;
+        default:
+            HPROF_ERROR(JNI_TRUE, "bad type number");
+            break;
+    }
+    return val;
+}
+
+/* Move arbitrary byte stream into gdata->check_fd */
+static void
+check_raw(void *buf, int len)
+{
+    if ( gdata->check_fd < 0 ) {
+        return;
+    }
+
+    if ( len <= 0 ) {
+        return;
+    }
+
+    if (gdata->check_buffer_index + len > gdata->check_buffer_size) {
+        check_flush();
+        if (len > gdata->check_buffer_size) {
+            system_write(gdata->check_fd, buf, len);
+            return;
+        }
+    }
+    (void)memcpy(gdata->check_buffer + gdata->check_buffer_index, buf, len);
+    gdata->check_buffer_index += len;
+}
+
+/* Printf for gdata->check_fd */
+static void
+check_printf(char *fmt, ...)
+{
+    char    buf[1024];
+    va_list args;
+
+    if ( gdata->check_fd < 0 ) {
+        return;
+    }
+
+    va_start(args, fmt);
+    (void)md_vsnprintf(buf, sizeof(buf), fmt, args);
+    buf[sizeof(buf)-1] = 0;
+    check_raw(buf, (int)strlen(buf));
+    va_end(args);
+}
+
+/* Printf of an element for gdata->check_fd */
+static void
+check_printf_val(HprofType ty, jvalue val, int long_form)
+{
+    jint low;
+    jint high;
+
+    switch ( ty ) {
+        case HPROF_ARRAY_OBJECT:
+            check_printf("0x%08x", val.i);
+            break;
+        case HPROF_NORMAL_OBJECT:
+            check_printf("0x%08x", val.i);
+            break;
+        case HPROF_BOOLEAN:
+            check_printf("0x%02x", val.b);
+            break;
+        case HPROF_CHAR:
+            if ( long_form ) {
+                if ( val.s < 0 || val.s > 0x7f || !isprint(val.s) ) {
+                    check_printf("0x%04x", val.s);
+                } else {
+                    check_printf("0x%04x(%c)", val.s, val.s);
+                }
+            } else {
+                if ( val.s < 0 || val.s > 0x7f || !isprint(val.s) ) {
+                    check_printf("\\u%04x", val.s);
+                } else {
+                    check_printf("%c", val.s);
+                }
+            }
+            break;
+        case HPROF_FLOAT:
+            low  = jlong_low(val.j);
+            check_printf("0x%08x(%f)", low, (double)val.f);
+            break;
+        case HPROF_DOUBLE:
+            high = jlong_high(val.j);
+            low  = jlong_low(val.j);
+            check_printf("0x%08x%08x(%f)", high, low, val.d);
+            break;
+        case HPROF_BYTE:
+            check_printf("0x%02x", val.b);
+            break;
+        case HPROF_SHORT:
+            check_printf("0x%04x", val.s);
+            break;
+        case HPROF_INT:
+            check_printf("0x%08x", val.i);
+            break;
+        case HPROF_LONG:
+            high = jlong_high(val.j);
+            low  = jlong_low(val.j);
+            check_printf("0x%08x%08x", high, low);
+            break;
+    }
+}
+
+/* Printf of a string for gdata->check_fd */
+static void
+check_printf_str(char *str)
+{
+    int len;
+    int i;
+
+    if ( str == NULL ) {
+        check_printf("<null>");
+    }
+    check_printf("\"");
+    len = (int)strlen(str);
+    for (i = 0; i < len; i++) {
+        unsigned char c;
+        c = str[i];
+        if ( isprint(c) ) {
+            check_printf("%c", c);
+        } else {
+            check_printf("\\x%02x", c);
+        }
+    }
+    check_printf("\"");
+}
+
+/* Printf of a utf8 id for gdata->check_fd */
+static void
+check_print_utf8(struct LookupTable *utab, char *prefix, HprofId id)
+{
+    TableIndex uindex;
+
+    if ( id == 0 ) {
+        check_printf("%s0x%x", prefix, id);
+    } else {
+        uindex = table_find_entry(utab, &id, sizeof(id));
+        if ( uindex == 0 ) {
+            check_printf("%s0x%x", prefix, id);
+        } else {
+            UmapInfo *umap;
+
+            umap = (UmapInfo*)table_get_info(utab, uindex);
+            HPROF_ASSERT(umap!=NULL);
+            HPROF_ASSERT(umap->str!=NULL);
+            check_printf("%s0x%x->", prefix, id);
+            check_printf_str(umap->str);
+        }
+    }
+}
+
+/* Add a instance field information to this cmap. */
+static void
+add_inst_field_to_cmap(CmapInfo *cmap, HprofId id, HprofType ty)
+{
+   int i;
+
+   HPROF_ASSERT(cmap!=NULL);
+   i = cmap->n_finfo++;
+   if ( i+1 >= cmap->max_finfo ) {
+       int    osize;
+       Finfo *new_finfo;
+
+       osize            = cmap->max_finfo;
+       cmap->max_finfo += 12;
+       new_finfo = (Finfo*)HPROF_MALLOC(cmap->max_finfo*(int)sizeof(Finfo));
+       (void)memset(new_finfo,0,cmap->max_finfo*(int)sizeof(Finfo));
+       if ( i == 0 ) {
+           cmap->finfo = new_finfo;
+       } else {
+           (void)memcpy(new_finfo,cmap->finfo,osize*(int)sizeof(Finfo));
+           HPROF_FREE(cmap->finfo);
+           cmap->finfo = new_finfo;
+       }
+   }
+   cmap->finfo[i].id = id;
+   cmap->finfo[i].ty = ty;
+}
+
+/* LookupTable callback for cmap entry cleanup */
+static void
+cmap_cleanup(TableIndex i, void *key_ptr, int key_len, void*info, void*data)
+{
+    CmapInfo *cmap = info;
+
+    if ( cmap == NULL ) {
+        return;
+    }
+    if ( cmap->finfo != NULL ) {
+        HPROF_FREE(cmap->finfo);
+        cmap->finfo = NULL;
+    }
+}
+
+/* Case label for a switch on hprof heap dump elements */
+#define CASE_HEAP(name) case name: label = #name;
+
+/* Given the heap dump data and the utf8 map, check/write the heap dump. */
+static int
+check_heap_tags(struct LookupTable *utab, unsigned char *pstart, int nbytes)
+{
+    int                 nrecords;
+    unsigned char      *p;
+    unsigned char      *psave;
+    struct LookupTable *ctab;
+    CmapInfo            cmap;
+    char               *label;
+    unsigned            tag;
+    HprofType           ty;
+    HprofId             id, id2, fr, sup;
+    int                 num_elements;
+    int                 num_bytes;
+    SerialNumber        trace_serial_num;
+    SerialNumber        thread_serial_num;
+    int                 npos;
+    int                 i;
+    int                 inst_size;
+
+    ctab     = table_initialize("temp ctab", 64, 64, 512, sizeof(CmapInfo));
+
+    /* First pass over heap records just fills in the CmapInfo table */
+    nrecords = 0;
+    p        = pstart;
+    while ( p < (pstart+nbytes) ) {
+        nrecords++;
+        /*LINTED*/
+        npos = (int)(p - pstart);
+        tag  = read_u1(&p);
+        switch ( tag ) {
+            CASE_HEAP(HPROF_GC_ROOT_UNKNOWN)
+                id = read_id(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_JNI_GLOBAL)
+                id  = read_id(&p);
+                id2 = read_id(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_JNI_LOCAL)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                fr = read_u4(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_JAVA_FRAME)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                fr = read_u4(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_NATIVE_STACK)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_STICKY_CLASS)
+                id = read_id(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_THREAD_BLOCK)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_MONITOR_USED)
+                id = read_id(&p);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_THREAD_OBJ)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                trace_serial_num = read_u4(&p);
+                break;
+            CASE_HEAP(HPROF_GC_CLASS_DUMP)
+                (void)memset((void*)&cmap, 0, sizeof(cmap));
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                {
+                    HprofId ld, si, pr, re1, re2;
+
+                    sup      = read_id(&p);
+                    ld       = read_id(&p);
+                    si       = read_id(&p);
+                    pr       = read_id(&p);
+                    re1      = read_id(&p);
+                    re2      = read_id(&p);
+                    cmap.sup = sup;
+                }
+                inst_size = read_u4(&p);
+                cmap.inst_size = inst_size;
+                num_elements = read_u2(&p);
+                for(i=0; i<num_elements; i++) {
+                    (void)read_u2(&p);
+                    ty = read_u1(&p);
+                    (void)read_val(&p, ty);
+                }
+                num_elements = read_u2(&p);
+                for(i=0; i<num_elements; i++) {
+                    (void)read_id(&p);
+                    ty = read_u1(&p);
+                    (void)read_val(&p, ty);
+                }
+                num_elements = read_u2(&p);
+                for(i=0; i<num_elements; i++) {
+                    HprofType ty;
+                    HprofId   id;
+
+                    id = read_id(&p);
+                    ty = read_u1(&p);
+                    add_inst_field_to_cmap(&cmap, id, ty);
+                }
+                (void)table_create_entry(ctab, &id, sizeof(id), &cmap);
+                break;
+            CASE_HEAP(HPROF_GC_INSTANCE_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                id2 = read_id(&p); /* class id */
+                num_bytes = read_u4(&p);
+                p += num_bytes;
+                break;
+            CASE_HEAP(HPROF_GC_OBJ_ARRAY_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                num_elements = read_u4(&p);
+                id2 = read_id(&p);
+                p += num_elements*(int)sizeof(HprofId);
+                break;
+            CASE_HEAP(HPROF_GC_PRIM_ARRAY_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                num_elements = read_u4(&p);
+                ty = read_u1(&p);
+                p += type_size[ty]*num_elements;
+                break;
+            default:
+                label = "UNKNOWN";
+                check_printf("H#%d@%d %s: ERROR!\n",
+                                nrecords, npos, label);
+                HPROF_ERROR(JNI_TRUE, "unknown heap record type");
+                break;
+        }
+    }
+    CHECK_FOR_ERROR(p==pstart+nbytes);
+
+    /* Scan again once we have our cmap */
+    nrecords = 0;
+    p        = pstart;
+    while ( p < (pstart+nbytes) ) {
+        nrecords++;
+        /*LINTED*/
+        npos = (int)(p - pstart);
+        tag  = read_u1(&p);
+        switch ( tag ) {
+            CASE_HEAP(HPROF_GC_ROOT_UNKNOWN)
+                id = read_id(&p);
+                check_printf("H#%d@%d %s: id=0x%x\n",
+                        nrecords, npos, label, id);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_JNI_GLOBAL)
+                id = read_id(&p);
+                id2 = read_id(&p);
+                check_printf("H#%d@%d %s: id=0x%x, id2=0x%x\n",
+                        nrecords, npos, label, id, id2);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_JNI_LOCAL)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                fr = read_u4(&p);
+                check_printf("H#%d@%d %s: id=0x%x, thread_serial_num=%u, fr=0x%x\n",
+                        nrecords, npos, label, id, thread_serial_num, fr);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_JAVA_FRAME)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                fr = read_u4(&p);
+                check_printf("H#%d@%d %s: id=0x%x, thread_serial_num=%u, fr=0x%x\n",
+                        nrecords, npos, label, id, thread_serial_num, fr);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_NATIVE_STACK)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                check_printf("H#%d@%d %s: id=0x%x, thread_serial_num=%u\n",
+                        nrecords, npos, label, id, thread_serial_num);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_STICKY_CLASS)
+                id = read_id(&p);
+                check_printf("H#%d@%d %s: id=0x%x\n",
+                        nrecords, npos, label, id);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_THREAD_BLOCK)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                check_printf("H#%d@%d %s: id=0x%x, thread_serial_num=%u\n",
+                        nrecords, npos, label, id, thread_serial_num);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_MONITOR_USED)
+                id = read_id(&p);
+                check_printf("H#%d@%d %s: id=0x%x\n",
+                        nrecords, npos, label, id);
+                break;
+            CASE_HEAP(HPROF_GC_ROOT_THREAD_OBJ)
+                id = read_id(&p);
+                thread_serial_num = read_u4(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                check_printf("H#%d@%d %s: id=0x%x, thread_serial_num=%u,"
+                             " trace_serial_num=%u\n",
+                        nrecords, npos, label, id, thread_serial_num,
+                        trace_serial_num);
+                break;
+            CASE_HEAP(HPROF_GC_CLASS_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                check_printf("H#%d@%d %s: id=0x%x, trace_serial_num=%u\n",
+                        nrecords, npos, label, id, trace_serial_num);
+                {
+                    HprofId ld, si, pr, re1, re2;
+
+                    sup = read_id(&p);
+                    ld  = read_id(&p);
+                    si  = read_id(&p);
+                    pr  = read_id(&p);
+                    re1 = read_id(&p);
+                    re2 = read_id(&p);
+                    check_printf("  su=0x%x, ld=0x%x, si=0x%x,"
+                                 " pr=0x%x, re1=0x%x, re2=0x%x\n",
+                        sup, ld, si, pr, re1, re2);
+                }
+                inst_size = read_u4(&p);
+                check_printf("  instance_size=%d\n", inst_size);
+
+                num_elements = read_u2(&p);
+                for(i=0; i<num_elements; i++) {
+                    HprofType ty;
+                    unsigned  cpi;
+                    jvalue    val;
+
+                    cpi = read_u2(&p);
+                    ty  = read_u1(&p);
+                    val = read_val(&p, ty);
+                    check_printf("  constant_pool %d: cpi=%d, ty=%d, val=",
+                                i, cpi, ty);
+                    check_printf_val(ty, val, 1);
+                    check_printf("\n");
+                }
+
+                num_elements = read_u2(&p);
+                check_printf("  static_field_count=%d\n", num_elements);
+                for(i=0; i<num_elements; i++) {
+                    HprofType ty;
+                    HprofId   id;
+                    jvalue    val;
+
+                    id  = read_id(&p);
+                    ty  = read_u1(&p);
+                    val = read_val(&p, ty);
+                    check_printf("  static field %d: ", i);
+                    check_print_utf8(utab, "id=", id);
+                    check_printf(", ty=%d, val=", ty);
+                    check_printf_val(ty, val, 1);
+                    check_printf("\n");
+                }
+
+                num_elements = read_u2(&p);
+                check_printf("  instance_field_count=%d\n", num_elements);
+                for(i=0; i<num_elements; i++) {
+                    HprofType ty;
+                    HprofId   id;
+
+                    id = read_id(&p);
+                    ty = read_u1(&p);
+                    check_printf("  instance_field %d: ", i);
+                    check_print_utf8(utab, "id=", id);
+                    check_printf(", ty=%d\n", ty);
+                }
+                break;
+            CASE_HEAP(HPROF_GC_INSTANCE_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                id2 = read_id(&p); /* class id */
+                num_bytes = read_u4(&p);
+                check_printf("H#%d@%d %s: id=0x%x, trace_serial_num=%u,"
+                             " cid=0x%x, nbytes=%d\n",
+                            nrecords, npos, label, id, trace_serial_num,
+                            id2, num_bytes);
+                /* This is a packed set of bytes for the instance fields */
+                if ( num_bytes > 0 ) {
+                    TableIndex cindex;
+                    int        ifield;
+                    CmapInfo  *map;
+
+                    cindex = table_find_entry(ctab, &id2, sizeof(id2));
+                    HPROF_ASSERT(cindex!=0);
+                    map = (CmapInfo*)table_get_info(ctab, cindex);
+                    HPROF_ASSERT(map!=NULL);
+                    HPROF_ASSERT(num_bytes==map->inst_size);
+
+                    psave  = p;
+                    ifield = 0;
+
+                    do {
+                        for(i=0;i<map->n_finfo;i++) {
+                            HprofType ty;
+                            HprofId   id;
+                            jvalue    val;
+
+                            ty = map->finfo[i].ty;
+                            id = map->finfo[i].id;
+                            HPROF_ASSERT(ty!=0);
+                            HPROF_ASSERT(id!=0);
+                            val = read_val(&p, ty);
+                            check_printf("  field %d: ", ifield);
+                            check_print_utf8(utab, "id=", id);
+                            check_printf(", ty=%d, val=", ty);
+                            check_printf_val(ty, val, 1);
+                            check_printf("\n");
+                            ifield++;
+                        }
+                        id2    = map->sup;
+                        map    = NULL;
+                        cindex = 0;
+                        if ( id2 != 0 ) {
+                            cindex = table_find_entry(ctab, &id2, sizeof(id2));
+                            HPROF_ASSERT(cindex!=0);
+                            map = (CmapInfo*)table_get_info(ctab, cindex);
+                            HPROF_ASSERT(map!=NULL);
+                        }
+                    } while ( map != NULL );
+                    HPROF_ASSERT(num_bytes==(p-psave));
+                }
+                break;
+            CASE_HEAP(HPROF_GC_OBJ_ARRAY_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                num_elements = read_u4(&p);
+                id2 = read_id(&p);
+                check_printf("H#%d@%d %s: id=0x%x, trace_serial_num=%u, nelems=%d, eid=0x%x\n",
+                                nrecords, npos, label, id, trace_serial_num, num_elements, id2);
+                for(i=0; i<num_elements; i++) {
+                    HprofId id;
+
+                    id = read_id(&p);
+                    check_printf("  [%d]: id=0x%x\n", i, id);
+                }
+                break;
+            CASE_HEAP(HPROF_GC_PRIM_ARRAY_DUMP)
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                num_elements = read_u4(&p);
+                ty = read_u1(&p);
+                psave = p;
+                check_printf("H#%d@%d %s: id=0x%x, trace_serial_num=%u, "
+                             "nelems=%d, ty=%d\n",
+                                nrecords, npos, label, id, trace_serial_num, num_elements, ty);
+                HPROF_ASSERT(HPROF_TYPE_IS_PRIMITIVE(ty));
+                if ( num_elements > 0 ) {
+                    int   count;
+                    int   long_form;
+                    int   max_count;
+                    char *quote;
+
+                    quote     = "";
+                    long_form = 1;
+                    max_count = 8;
+                    count     = 0;
+                    switch ( ty ) {
+                        case HPROF_CHAR:
+                            long_form = 0;
+                            max_count = 72;
+                            quote     = "\"";
+                            /*FALLTHRU*/
+                        case HPROF_INT:
+                        case HPROF_DOUBLE:
+                        case HPROF_LONG:
+                        case HPROF_BYTE:
+                        case HPROF_BOOLEAN:
+                        case HPROF_SHORT:
+                        case HPROF_FLOAT:
+                            check_printf("  val=%s", quote);
+                            for(i=0; i<num_elements; i++) {
+                                jvalue val;
+
+                                if ( i > 0 && count == 0 ) {
+                                    check_printf("  %s", quote);
+                                }
+                                val = read_val(&p, ty);
+                                check_printf_val(ty, val, long_form);
+                                count += 1;
+                                if ( count >= max_count ) {
+                                    check_printf("\"\n");
+                                    count = 0;
+                                }
+                            }
+                            if ( count != 0 ) {
+                                check_printf("%s\n", quote);
+                            }
+                            break;
+                    }
+                }
+                HPROF_ASSERT(type_size[ty]*num_elements==(p-psave));
+                break;
+            default:
+                label = "UNKNOWN";
+                check_printf("H#%d@%d %s: ERROR!\n",
+                                nrecords, npos, label);
+                HPROF_ERROR(JNI_TRUE, "unknown heap record type");
+                break;
+        }
+    }
+    CHECK_FOR_ERROR(p==pstart+nbytes);
+
+    table_cleanup(ctab, &cmap_cleanup, NULL);
+
+    return nrecords;
+}
+
+/* LookupTable cleanup callback for utab */
+static void
+utab_cleanup(TableIndex i, void *key_ptr, int key_len, void*info, void*data)
+{
+    UmapInfo *umap = info;
+
+    if ( umap == NULL ) {
+        return;
+    }
+    if ( umap->str != NULL ) {
+        HPROF_FREE(umap->str);
+        umap->str = NULL;
+    }
+}
+
+/* Check all the heap tags in a heap dump */
+static int
+check_tags(unsigned char *pstart, int nbytes)
+{
+    unsigned char      *p;
+    int                 nrecord;
+    struct LookupTable *utab;
+    UmapInfo            umap;
+
+    check_printf("\nCHECK TAGS: starting\n");
+
+    utab    = table_initialize("temp utf8 map", 64, 64, 512, sizeof(UmapInfo));
+
+    /* Walk the tags, assumes UTF8 tags are defined before used */
+    p       = pstart;
+    nrecord = 0;
+    while ( p < (pstart+nbytes) ) {
+        unsigned     tag;
+        unsigned     size;
+        int          nheap_records;
+        int          npos;
+        char        *label;
+        HprofId      id, nm, sg, so, gr, gn;
+        int          i, li, num_elements;
+        HprofType    ty;
+        SerialNumber trace_serial_num;
+        SerialNumber thread_serial_num;
+        SerialNumber class_serial_num;
+        unsigned     flags;
+        unsigned     depth;
+        float        cutoff;
+        unsigned     temp;
+        jint         nblive;
+        jint         nilive;
+        jlong        tbytes;
+        jlong        tinsts;
+        jint         total_samples;
+        jint         trace_count;
+
+        nrecord++;
+        /*LINTED*/
+        npos = (int)(p - pstart);
+        tag = read_u1(&p);
+        (void)read_u4(&p); /* microsecs */
+        size = read_u4(&p);
+        #define CASE_TAG(name) case name: label = #name;
+        switch ( tag ) {
+            CASE_TAG(HPROF_UTF8)
+                CHECK_FOR_ERROR(size>=(int)sizeof(HprofId));
+                id = read_id(&p);
+                check_printf("#%d@%d: %s, sz=%d, name_id=0x%x, \"",
+                                nrecord, npos, label, size, id);
+                num_elements = size-(int)sizeof(HprofId);
+                check_raw(p, num_elements);
+                check_printf("\"\n");
+                /* Create entry in umap */
+                umap.str = HPROF_MALLOC(num_elements+1);
+                (void)strncpy(umap.str, (char*)p, (size_t)num_elements);
+                umap.str[num_elements] = 0;
+                (void)table_create_entry(utab, &id, sizeof(id), &umap);
+                p += num_elements;
+                break;
+            CASE_TAG(HPROF_LOAD_CLASS)
+                CHECK_FOR_ERROR(size==2*4+2*(int)sizeof(HprofId));
+                class_serial_num = read_u4(&p);
+                CHECK_CLASS_SERIAL_NO(class_serial_num);
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                nm = read_id(&p);
+                check_printf("#%d@%d: %s, sz=%d, class_serial_num=%u,"
+                             " id=0x%x, trace_serial_num=%u, name_id=0x%x\n",
+                                nrecord, npos, label, size, class_serial_num,
+                                id, trace_serial_num, nm);
+                break;
+            CASE_TAG(HPROF_UNLOAD_CLASS)
+                CHECK_FOR_ERROR(size==4);
+                class_serial_num = read_u4(&p);
+                CHECK_CLASS_SERIAL_NO(class_serial_num);
+                check_printf("#%d@%d: %s, sz=%d, class_serial_num=%u\n",
+                                nrecord, npos, label, size, class_serial_num);
+                break;
+            CASE_TAG(HPROF_FRAME)
+                CHECK_FOR_ERROR(size==2*4+4*(int)sizeof(HprofId));
+                id = read_id(&p);
+                nm = read_id(&p);
+                sg = read_id(&p);
+                so = read_id(&p);
+                class_serial_num = read_u4(&p);
+                CHECK_CLASS_SERIAL_NO(class_serial_num);
+                li = read_u4(&p);
+                check_printf("#%d@%d: %s, sz=%d, ", nrecord, npos, label, size);
+                check_print_utf8(utab, "id=", id);
+                check_printf(" name_id=0x%x, sig_id=0x%x, source_id=0x%x,"
+                             " class_serial_num=%u, lineno=%d\n",
+                                nm, sg, so, class_serial_num, li);
+                break;
+            CASE_TAG(HPROF_TRACE)
+                CHECK_FOR_ERROR(size>=3*4);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                thread_serial_num = read_u4(&p); /* Can be 0 */
+                num_elements = read_u4(&p);
+                check_printf("#%d@%d: %s, sz=%d, trace_serial_num=%u,"
+                             " thread_serial_num=%u, nelems=%d [",
+                                nrecord, npos, label, size,
+                                trace_serial_num, thread_serial_num, num_elements);
+                for(i=0; i< num_elements; i++) {
+                    check_printf("0x%x,", read_id(&p));
+                }
+                check_printf("]\n");
+                break;
+            CASE_TAG(HPROF_ALLOC_SITES)
+                CHECK_FOR_ERROR(size>=2+4*4+2*8);
+                flags = read_u2(&p);
+                temp  = read_u4(&p);
+                cutoff = *((float*)&temp);
+                nblive = read_u4(&p);
+                nilive = read_u4(&p);
+                tbytes = read_u8(&p);
+                tinsts = read_u8(&p);
+                num_elements     = read_u4(&p);
+                check_printf("#%d@%d: %s, sz=%d, flags=0x%x, cutoff=%g,"
+                             " nblive=%d, nilive=%d, tbytes=(%d,%d),"
+                             " tinsts=(%d,%d), num_elements=%d\n",
+                                nrecord, npos, label, size,
+                                flags, cutoff, nblive, nilive,
+                                jlong_high(tbytes), jlong_low(tbytes),
+                                jlong_high(tinsts), jlong_low(tinsts),
+                                num_elements);
+                for(i=0; i< num_elements; i++) {
+                    ty = read_u1(&p);
+                    class_serial_num = read_u4(&p);
+                    CHECK_CLASS_SERIAL_NO(class_serial_num);
+                    trace_serial_num = read_u4(&p);
+                    CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                    nblive = read_u4(&p);
+                    nilive = read_u4(&p);
+                    tbytes = read_u4(&p);
+                    tinsts = read_u4(&p);
+                    check_printf("\t %d: ty=%d, class_serial_num=%u,"
+                                 " trace_serial_num=%u, nblive=%d, nilive=%d,"
+                                 " tbytes=%d, tinsts=%d\n",
+                                 i, ty, class_serial_num, trace_serial_num,
+                                 nblive, nilive, (jint)tbytes, (jint)tinsts);
+                }
+                break;
+            CASE_TAG(HPROF_HEAP_SUMMARY)
+                CHECK_FOR_ERROR(size==2*4+2*8);
+                nblive = read_u4(&p);
+                nilive = read_u4(&p);
+                tbytes = read_u8(&p);
+                tinsts = read_u8(&p);
+                check_printf("#%d@%d: %s, sz=%d,"
+                             " nblive=%d, nilive=%d, tbytes=(%d,%d),"
+                             " tinsts=(%d,%d)\n",
+                                nrecord, npos, label, size,
+                                nblive, nilive,
+                                jlong_high(tbytes), jlong_low(tbytes),
+                                jlong_high(tinsts), jlong_low(tinsts));
+                break;
+            CASE_TAG(HPROF_START_THREAD)
+                CHECK_FOR_ERROR(size==2*4+4*(int)sizeof(HprofId));
+                thread_serial_num = read_u4(&p);
+                CHECK_THREAD_SERIAL_NO(thread_serial_num);
+                id = read_id(&p);
+                trace_serial_num = read_u4(&p);
+                CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                nm = read_id(&p);
+                gr = read_id(&p);
+                gn = read_id(&p);
+                check_printf("#%d@%d: %s, sz=%d, thread_serial_num=%u,"
+                             " id=0x%x, trace_serial_num=%u, ",
+                                nrecord, npos, label, size,
+                                thread_serial_num, id, trace_serial_num);
+                check_print_utf8(utab, "nm=", id);
+                check_printf(" trace_serial_num=%u, nm=0x%x,"
+                             " gr=0x%x, gn=0x%x\n",
+                                trace_serial_num, nm, gr, gn);
+                break;
+            CASE_TAG(HPROF_END_THREAD)
+                CHECK_FOR_ERROR(size==4);
+                thread_serial_num = read_u4(&p);
+                CHECK_THREAD_SERIAL_NO(thread_serial_num);
+                check_printf("#%d@%d: %s, sz=%d, thread_serial_num=%u\n",
+                                nrecord, npos, label, size, thread_serial_num);
+                break;
+            CASE_TAG(HPROF_HEAP_DUMP)
+                check_printf("#%d@%d: BEGIN: %s, sz=%d\n",
+                                nrecord, npos, label, size);
+                nheap_records = check_heap_tags(utab, p, size);
+                check_printf("#%d@%d: END: %s, sz=%d, nheap_recs=%d\n",
+                                nrecord, npos, label, size, nheap_records);
+                p += size;
+                break;
+            CASE_TAG(HPROF_HEAP_DUMP_SEGMENT) /* 1.0.2 */
+                check_printf("#%d@%d: BEGIN SEGMENT: %s, sz=%d\n",
+                                nrecord, npos, label, size);
+                nheap_records = check_heap_tags(utab, p, size);
+                check_printf("#%d@%d: END SEGMENT: %s, sz=%d, nheap_recs=%d\n",
+                                nrecord, npos, label, size, nheap_records);
+                p += size;
+                break;
+            CASE_TAG(HPROF_HEAP_DUMP_END) /* 1.0.2 */
+                check_printf("#%d@%d: SEGMENT END: %s, sz=%d\n",
+                                nrecord, npos, label, size);
+                break;
+            CASE_TAG(HPROF_CPU_SAMPLES)
+                CHECK_FOR_ERROR(size>=2*4);
+                total_samples = read_u4(&p);
+                trace_count = read_u4(&p);
+                check_printf("#%d@%d: %s, sz=%d, total_samples=%d,"
+                             " trace_count=%d\n",
+                                nrecord, npos, label, size,
+                                total_samples, trace_count);
+                for(i=0; i< trace_count; i++) {
+                    num_elements = read_u4(&p);
+                    trace_serial_num = read_u4(&p);
+                    CHECK_TRACE_SERIAL_NO(trace_serial_num);
+                    check_printf("\t %d: samples=%d, trace_serial_num=%u\n",
+                                 trace_serial_num, num_elements);
+                }
+                break;
+            CASE_TAG(HPROF_CONTROL_SETTINGS)
+                CHECK_FOR_ERROR(size==4+2);
+                flags = read_u4(&p);
+                depth = read_u2(&p);
+                check_printf("#%d@%d: %s, sz=%d, flags=0x%x, depth=%d\n",
+                                nrecord, npos, label, size, flags, depth);
+                break;
+            default:
+                label = "UNKNOWN";
+                check_printf("#%d@%d: %s, sz=%d\n",
+                                nrecord, npos, label, size);
+                HPROF_ERROR(JNI_TRUE, "unknown record type");
+                p += size;
+                break;
+        }
+        CHECK_FOR_ERROR(p<=(pstart+nbytes));
+    }
+    check_flush();
+    CHECK_FOR_ERROR(p==(pstart+nbytes));
+    table_cleanup(utab, &utab_cleanup, NULL);
+    return nrecord;
+}
+
+/* Read the entire file into memory */
+static void *
+get_binary_file_image(char *filename, int *pnbytes)
+{
+    unsigned char *image;
+    int            fd;
+    jlong          nbytes;
+    int            nread;
+
+    *pnbytes = 0;
+    fd = md_open_binary(filename);
+    CHECK_FOR_ERROR(fd>=0);
+    if ( (nbytes = md_seek(fd, (jlong)-1)) == (jlong)-1 ) {
+        HPROF_ERROR(JNI_TRUE, "Cannot md_seek() to end of file");
+    }
+    CHECK_FOR_ERROR(((jint)nbytes)>512);
+    if ( md_seek(fd, (jlong)0) != (jlong)0 ) {
+        HPROF_ERROR(JNI_TRUE, "Cannot md_seek() to start of file");
+    }
+    image = HPROF_MALLOC(((jint)nbytes)+1);
+    CHECK_FOR_ERROR(image!=NULL);
+
+    /* Read the entire file image into memory */
+    nread = md_read(fd, image, (jint)nbytes);
+    if ( nread <= 0 ) {
+        HPROF_ERROR(JNI_TRUE, "System read failed.");
+    }
+    CHECK_FOR_ERROR(((jint)nbytes)==nread);
+    md_close(fd);
+    *pnbytes = (jint)nbytes;
+    return image;
+}
+
+/* ------------------------------------------------------------------ */
+
+void
+check_binary_file(char *filename)
+{
+    unsigned char *image;
+    unsigned char *p;
+    unsigned       idsize;
+    int            nbytes;
+    int            nrecords;
+
+    image = get_binary_file_image(filename, &nbytes);
+    if ( image == NULL ) {
+        check_printf("No file image: %s\n", filename);
+        return;
+    }
+    p = image;
+    CHECK_FOR_ERROR(strcmp((char*)p, gdata->header)==0);
+    check_printf("Filename=%s, nbytes=%d, header=\"%s\"\n",
+                        filename, nbytes, p);
+    p+=((int)strlen((char*)p)+1);
+    idsize = read_u4(&p);
+    CHECK_FOR_ERROR(idsize==sizeof(HprofId));
+    (void)read_u4(&p);
+    (void)read_u4(&p);
+    /* LINTED */
+    nrecords = check_tags(p, nbytes - (int)( p - image ) );
+    check_printf("#%d total records found in %d bytes\n", nrecords, nbytes);
+    HPROF_FREE(image);
+}