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URL https://opencores.org/ocsvn/s6soc/s6soc/trunk

Subversion Repositories s6soc

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  • This comparison shows the changes necessary to convert path 
    /s6soc/trunk/sw/host
    from Rev 45 to Rev 48
    ↔ Reverse comparison
  •

Rev 45 → Rev 48

/byteswap.cpp
0,0 → 1,86
////////////////////////////////////////////////////////////////////////////////
//
// Filename: byteswap.cpp
//
// Project: OpenArty, an entirely open SoC based upon the Arty platform
//
// Purpose:
//
// Creator: Dan Gisselquist, Ph.D.
// Gisselquist Technology, LLC
//
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2015-2016, Gisselquist Technology, LLC
//
// This program is free software (firmware): you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. (It's in the $(ROOT)/doc directory, run make with no
// target there if the PDF file isn't present.) If not, see
// <http://www.gnu.org/licenses/> for a copy.
//
// License: GPL, v3, as defined and found on www.gnu.org,
// http://www.gnu.org/licenses/gpl.html
//
//
////////////////////////////////////////////////////////////////////////////////
//
//
#include <stdint.h>
#include "byteswap.h"
 
uint32_t
byteswap(uint32_t v) {
uint32_t r = 0;
 
r = (v & 0x0ff);
r <<= 8; v >>= 8;
r |= (v & 0x0ff);
r <<= 8; v >>= 8;
r |= (v & 0x0ff);
r <<= 8; v >>= 8;
r |= (v & 0x0ff);
 
return r;
}
 
uint32_t
buildword(const unsigned char *p) {
uint32_t r = 0;
 
r = (*p++); r <<= 8;
r |= (*p++); r <<= 8;
r |= (*p++); r <<= 8;
r |= (*p );
 
return r;
}
 
uint32_t
buildswap(const unsigned char *p) {
uint32_t r = 0;
 
r = p[3]; r <<= 8;
r |= p[2]; r <<= 8;
r |= p[1]; r <<= 8;
r |= p[0];
 
return r;
}
 
void
byteswapbuf(int ln, uint32_t *buf) {
for(int i=0; i<ln; i++)
buf[i] = byteswap(buf[i]);
}
 
 
/byteswap.h
0,0 → 1,54
////////////////////////////////////////////////////////////////////////////////
//
// Filename: byteswap.h
//
// Project: OpenArty, an entirely open SoC based upon the Arty platform
//
// Purpose:
//
// Creator: Dan Gisselquist, Ph.D.
// Gisselquist Technology, LLC
//
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2015-2016, Gisselquist Technology, LLC
//
// This program is free software (firmware): you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. (It's in the $(ROOT)/doc directory, run make with no
// target there if the PDF file isn't present.) If not, see
// <http://www.gnu.org/licenses/> for a copy.
//
// License: GPL, v3, as defined and found on www.gnu.org,
// http://www.gnu.org/licenses/gpl.html
//
//
////////////////////////////////////////////////////////////////////////////////
//
//
#ifndef BYTESWAP_H
#define BYTESWAP_H
 
#include <stdint.h>
 
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
extern uint32_t byteswap(uint32_t v);
extern void byteswapbuf(int ln, uint32_t *buf);
#else
#define byteswap(A) (A)
#define byteswapbuf(A, B)
#endif
 
extern uint32_t buildword(const unsigned char *p);
extern uint32_t buildswap(const unsigned char *p);
 
#endif
/zipelf.cpp
0,0 → 1,251
////////////////////////////////////////////////////////////////////////////////
//
// Filename: zipelf.cpp
//
// Project: OpenArty, an entirely open SoC based upon the Arty platform
//
// Purpose:
//
//
// Creator: Dan Gisselquist, Ph.D.
// Gisselquist Technology, LLC
//
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2015-2017, Gisselquist Technology, LLC
//
// This program is free software (firmware): you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. (It's in the $(ROOT)/doc directory. Run make with no
// target there if the PDF file isn't present.) If not, see
// <http://www.gnu.org/licenses/> for a copy.
//
// License: GPL, v3, as defined and found on www.gnu.org,
// http://www.gnu.org/licenses/gpl.html
//
//
////////////////////////////////////////////////////////////////////////////////
//
//
 
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libelf.h>
#include <assert.h>
#include <gelf.h>
#include <string.h>
 
#include "zipelf.h"
 
bool
iself(const char *fname)
{
FILE *fp;
bool ret = true;
fp = fopen(fname, "rb");
 
if (!fp) return false;
if (0x7f != fgetc(fp)) ret = false;
if ('E' != fgetc(fp)) ret = false;
if ('L' != fgetc(fp)) ret = false;
if ('F' != fgetc(fp)) ret = false;
fclose(fp);
return ret;
}
 
void elfread(const char *fname, unsigned &entry, ELFSECTION **&sections)
{
Elf *e;
int fd, i;
size_t n;
char *id;
Elf_Kind ek;
GElf_Ehdr ehdr;
GElf_Phdr phdr;
const bool dbg = false;
 
if (elf_version(EV_CURRENT) == EV_NONE) {
fprintf(stderr, "ELF library initialization err, %s\n", elf_errmsg(-1));
perror("O/S Err:");
exit(EXIT_FAILURE);
} if ((fd = open(fname, O_RDONLY, 0)) < 0) {
fprintf(stderr, "Could not open %s\n", fname);
perror("O/S Err:");
exit(EXIT_FAILURE);
} if ((e = elf_begin(fd, ELF_C_READ, NULL))==NULL) {
fprintf(stderr, "Could not run elf_begin, %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
ek = elf_kind(e);
if (ek == ELF_K_ELF) {
; // This is the kind of file we should expect
} else if (ek == ELF_K_AR) {
fprintf(stderr, "Cannot run an archive!\n");
exit(EXIT_FAILURE);
} else if (ek == ELF_K_NONE) {
;
} else {
fprintf(stderr, "Unexpected ELF file kind!\n");
exit(EXIT_FAILURE);
}
 
if (gelf_getehdr(e, &ehdr) == NULL) {
fprintf(stderr, "getehdr() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
} if ((i=gelf_getclass(e)) == ELFCLASSNONE) {
fprintf(stderr, "getclass() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
} if ((id = elf_getident(e, NULL)) == NULL) {
fprintf(stderr, "getident() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
} if (i != ELFCLASS32) {
fprintf(stderr, "This is a 64-bit ELF file, ZipCPU ELF files are all 32-bit\n");
exit(EXIT_FAILURE);
}
 
if (dbg) {
printf(" %-20s 0x%jx\n", "e_type", (uintmax_t)ehdr.e_type);
printf(" %-20s 0x%jx\n", "e_machine", (uintmax_t)ehdr.e_machine);
printf(" %-20s 0x%jx\n", "e_version", (uintmax_t)ehdr.e_version);
printf(" %-20s 0x%jx\n", "e_entry", (uintmax_t)ehdr.e_entry);
printf(" %-20s 0x%jx\n", "e_phoff", (uintmax_t)ehdr.e_phoff);
printf(" %-20s 0x%jx\n", "e_shoff", (uintmax_t)ehdr.e_shoff);
printf(" %-20s 0x%jx\n", "e_flags", (uintmax_t)ehdr.e_flags);
printf(" %-20s 0x%jx\n", "e_ehsize", (uintmax_t)ehdr.e_ehsize);
printf(" %-20s 0x%jx\n", "e_phentsize", (uintmax_t)ehdr.e_phentsize);
printf(" %-20s 0x%jx\n", "e_shentsize", (uintmax_t)ehdr.e_shentsize);
printf("\n");
}
 
 
// Check whether or not this is an ELF file for the ZipCPU ...
if (ehdr.e_machine != 0x0dad1) {
fprintf(stderr, "This is not a ZipCPU/8 ELF file\n");
exit(EXIT_FAILURE);
}
 
// Get our entry address
entry = ehdr.e_entry;
 
 
// Now, let's go look at the program header
if (elf_getphdrnum(e, &n) != 0) {
fprintf(stderr, "elf_getphdrnum() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
assert(n != 0);
 
unsigned total_octets = 0, current_offset=0, current_section=0;
for(i=0; i<(int)n; i++) {
total_octets += sizeof(ELFSECTION *)+sizeof(ELFSECTION);
 
if (gelf_getphdr(e, i, &phdr) != &phdr) {
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
if (dbg) {
printf(" %-20s 0x%x\n", "p_type", phdr.p_type);
printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
 
if (phdr.p_flags & PF_X) printf(" Execute");
if (phdr.p_flags & PF_R) printf(" Read");
if (phdr.p_flags & PF_W) printf(" Write");
printf("]\n");
printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
}
 
total_octets += phdr.p_memsz;
}
 
char *d = (char *)malloc(total_octets + sizeof(ELFSECTION)+sizeof(ELFSECTION *));
memset(d, 0, total_octets);
 
ELFSECTION **r = sections = (ELFSECTION **)d;
current_offset = (n+1)*sizeof(ELFSECTION *);
current_section = 0;
 
for(i=0; i<(int)n; i++) {
r[i] = (ELFSECTION *)(&d[current_offset]);
 
if (gelf_getphdr(e, i, &phdr) != &phdr) {
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
exit(EXIT_FAILURE);
}
 
if (dbg) {
printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
 
if (phdr.p_flags & PF_X) printf(" Execute");
if (phdr.p_flags & PF_R) printf(" Read");
if (phdr.p_flags & PF_W) printf(" Write");
printf("]\n");
 
printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
}
 
current_section++;
 
r[i]->m_start = phdr.p_paddr;
r[i]->m_len = phdr.p_filesz;
 
current_offset += phdr.p_memsz + sizeof(ELFSECTION);
 
// Now, let's read in our section ...
if (lseek(fd, phdr.p_offset, SEEK_SET) < 0) {
fprintf(stderr, "Could not seek to file position %08lx\n", phdr.p_offset);
perror("O/S Err:");
exit(EXIT_FAILURE);
} if (phdr.p_filesz > phdr.p_memsz)
phdr.p_filesz = 0;
if (read(fd, r[i]->m_data, phdr.p_filesz) != (int)phdr.p_filesz) {
fprintf(stderr, "Didnt read entire section\n");
perror("O/S Err:");
exit(EXIT_FAILURE);
}
 
/*
// Next, we need to byte swap it from big to little endian
for(unsigned j=0; j<r[i]->m_len; j++)
r[i]->m_data[j] = byteswap(r[i]->m_data[j]);
*/
 
if (dbg) for(unsigned j=0; j<r[i]->m_len; j++)
fprintf(stderr, "ADR[%04x] = %02x\n", r[i]->m_start+j,
r[i]->m_data[j] & 0x0ff);
}
 
r[i] = (ELFSECTION *)(&d[current_offset]);
r[current_section]->m_start = 0;
r[current_section]->m_len = 0;
 
elf_end(e);
close(fd);
}
 
/zipelf.h
0,0 → 1,53
////////////////////////////////////////////////////////////////////////////////
//
// Filename: zipelf.h
//
// Project: CMod S6 System on a Chip, ZipCPU demonstration project
//
// Purpose:
//
//
// Creator: Dan Gisselquist, Ph.D.
// Gisselquist Technology, LLC
//
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2015-2017, Gisselquist Technology, LLC
//
// This program is free software (firmware): you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. (It's in the $(ROOT)/doc directory. Run make with no
// target there if the PDF file isn't present.) If not, see
// <http://www.gnu.org/licenses/> for a copy.
//
// License: GPL, v3, as defined and found on www.gnu.org,
// http://www.gnu.org/licenses/gpl.html
//
//
////////////////////////////////////////////////////////////////////////////////
//
//
#ifndef ZIPELF_H
#define ZIPELF_H
 
#include <stdint.h>
 
class ELFSECTION {
public:
uint32_t m_start, m_len;
char m_data[4];
};
 
bool iself(const char *fname);
void elfread(const char *fname, uint32_t &entry, ELFSECTION **&sections);
 
#endif
/.
. Property changes : Added: svn:ignore ## -0,0 +1,9 ## +.gitignore +buildsamples +dumpuart +obj-pc +qspiflash-original.bin +readflash +tags +wbregs +zipload

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