OpenCores
URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] [sim/] [verilator/] [pdump.cpp] - Blame information for rev 208

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 204 dgisselq
////////////////////////////////////////////////////////////////////////////////
2
//
3
// Filename:    pdump.cpp
4
//
5
// Project:     Zip CPU -- a small, lightweight, RISC CPU core
6
//
7
// Purpose:     Disassemble machine code files onto the stdout file.  Unlike
8
//              the zip-objdump program that is part of the binutils suite, this
9
//      program takes the pfile.bin output of the bench test suite and adds
10
//      profiling information to the output.  It's useful for finding out where,
11
//      at least in simulation, your time is being spent.  It can also be used,
12
//      after the fact, to get a trace of what instructions the CPU executed.
13
//
14
// Creator:     Dan Gisselquist, Ph.D.
15
//              Gisselquist Technology, LLC
16
//
17
////////////////////////////////////////////////////////////////////////////////
18
//
19
// Copyright (C) 2015,2017, Gisselquist Technology, LLC
20
//
21
// This program is free software (firmware): you can redistribute it and/or
22
// modify it under the terms of  the GNU General Public License as published
23
// by the Free Software Foundation, either version 3 of the License, or (at
24
// your option) any later version.
25
//
26
// This program is distributed in the hope that it will be useful, but WITHOUT
27
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
28
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
29
// for more details.
30
//
31
// You should have received a copy of the GNU General Public License along
32
// with this program.  (It's in the $(ROOT)/doc directory, run make with no
33
// target there if the PDF file isn't present.)  If not, see
34
// <http://www.gnu.org/licenses/> for a copy.
35
//
36
// License:     GPL, v3, as defined and found on www.gnu.org,
37
//              http://www.gnu.org/licenses/gpl.html
38
//
39
//
40
////////////////////////////////////////////////////////////////////////////////
41
#include <algorithm>
42
#include <stdio.h>
43
#include <unistd.h>
44
#include <ctype.h>
45
 
46
#include "zipelf.h"
47
#include "zopcodes.h"
48
#include "byteswap.h"
49
 
50
typedef uint32_t        ZIPI;   // A ZipCPU instruction word
51
 
52
typedef struct  { unsigned clks, addr; } ALT;
53
bool    altcmp(const ALT &a, const ALT &b) {
54
        return a.clks < b.clks;
55
}
56
 
57
 
58
void    dump_file(const char *fn) {
59
        const   int     NZIP = 4096;
60
        char    lna[NZIP], lnb[NZIP];
61
        FILE    *pf;
62
        unsigned        addr=0x0100000, mina = -1, maxa = 0,
63
                        *pfcnt = NULL, *pfclk = NULL;
64
 
65
        pf = fopen("pfile.bin","rb");
66
        if (pf) {
67
                ALT     *pfalt;
68
                unsigned        buf[2], total_clks = 0;
69
                while(2 == fread(buf, sizeof(unsigned), 2, pf)) {
70
                        if (mina > buf[0])
71
                                mina = buf[0];
72
                        if (maxa < buf[0])
73
                                maxa = buf[0];
74
                }
75
 
76
                addr = mina;
77
                pfcnt = new unsigned[(maxa+2-mina)];
78
                pfclk = new unsigned[(maxa+2-mina)];
79
                pfalt = new ALT[(maxa+2-mina)];
80
                unsigned ncnt = maxa+2-mina;
81
                for(int i=0; i<(int)ncnt; i++)
82
                        pfcnt[i] = pfclk[i] = 0;
83
                for(int i=0; i<(int)ncnt; i++)
84
                        pfalt[i].addr = pfalt[i].clks = 0;
85
 
86
                rewind(pf);
87
                while(2 == fread(buf, sizeof(unsigned), 2, pf)) {
88
                        pfcnt[buf[0]-addr]++;
89
                        pfclk[buf[0]-addr] += buf[1];
90
                        pfalt[buf[0]-addr].clks += buf[1];
91
                        pfalt[buf[0]-addr].addr = buf[0];
92
                        total_clks += buf[1];
93
 
94
                        printf("%08x\n", buf[0]);
95
                } fclose(pf);
96
 
97
                printf("%08x (%8d) total clocks\n", total_clks, total_clks);
98
 
99
                std::sort(&pfalt[0], &pfalt[ncnt], altcmp);
100
 
101
                for(int i=0; i<(int)ncnt; i++)
102
                        printf("%08x: %8d\n", pfalt[i].addr, pfalt[i].clks);
103
        }
104
 
105
        printf("%s:\n", fn);
106
        if (iself(fn)) {
107
                ELFSECTION **secpp=NULL, *secp;
108
                unsigned entry;
109
                elfread(fn, entry, secpp);
110
                for(int i=0; secpp[i]->m_len; i++) {
111
                        secp = secpp[i];
112
                        for(unsigned j=0; j<secp->m_len; j+=4) {
113
                                uint32_t        w, a;
114
 
115
                                a = secp->m_start+(j<<2);
116
                                w = buildword((const unsigned char *)&secp->m_data[(j<<2)]);
117
                                zipi_to_double_string(a, w, lna, lnb);
118
                                // printf("%s\n", ln);
119
                                printf("%08x[%08x-%08x]: (0x%08x %c%c%c%c) ",
120
                                        a, maxa, mina, w,
121
                                        isgraph((w>>24)&0x0ff)?((w>>24)&0x0ff) : '.',
122
                                        isgraph((w>>16)&0x0ff)?((w>>16)&0x0ff) : '.',
123
                                        isgraph((w>> 8)&0x0ff)?((w>> 8)&0x0ff) : '.',
124
                                        isgraph((w    )&0x0ff)?((w    )&0x0ff) : '.'
125
                                        );
126
                                if ((a>=mina)&&(a<maxa)&&(pfcnt))
127
                                        printf("%8d %8d ", pfcnt[a-mina], pfclk[a-mina]);
128
                                printf("%s\n", lna);
129
                                if (lnb[0])
130
                                        printf("-%24s%s\n", "", lnb);
131
                        }
132
                }
133
        }
134
}
135
 
136
int main(int argc, char **argv) {
137
        if (argc <= 1)
138
                printf("USAGE: pdump <dump-file> | less\n");
139
        for(int argn=1; argn<argc; argn++) {
140
                if(access(argv[argn], R_OK)==0)
141
                        dump_file(argv[argn]);
142
        }
143
 
144
        return 0;
145
}
146
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.