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Import a slightly modified Bayou version into svn. This is based

Browse Source 
on the last snapshot posted by Jordan Crouse. This commit is long
overdue.

Changes by me include:

 - Rename 'utils' to 'util' for consistency with our other projects.

 - Move the main code out of src/* into the top-level directory.

 - Add missing license headers to the following files:
   Makefile, pbuilder/liblar/Makefile, util/pbuilder/Makefile.

 - Dropped the util/pbuilder/lzma completely. I'm working on reusing
   the lzma/ dir from v3 via svn:externals. Alas, this also means
   that Bayou won't yet compile out of the box.

 - Coding-style and white-space fixes (indent) for all files.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3719 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Uwe Hermann
2008-11-02 17:01:06 +00:00
parent 91df5619db
commit 7eb845e815
25 changed files with 3227 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
payloads/bayou/util/pbuilder/liblar/Makefile Normal file
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##
## This file is part of the bayou project.
##
## Copyright (C) 2008 Advanced Micro Devices, Inc.
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License version 2 as
## published by the Free Software Foundation.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY 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; if not, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
CC = gcc
LAROBJS = self.o lib.o
CFLAGS = -g -Wall
liblar.a: $(LAROBJS)
ar rc $@ $(LAROBJS)
%.o: %.c
$(CC) -c $(CFLAGS) -o $@ $<
clean:
rm -f liblar.a *.o

95
payloads/bayou/util/pbuilder/liblar/lar.h Normal file
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/*
* lar - lightweight archiver
*
* Copyright (C) 2006 coresystems GmbH
* (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
* Copyright (C) 2007 Patrick Georgi <patrick@georgi-clan.de>
*
* This file is dual-licensed. You can choose between:
* - The GNU GPL, version 2, as published by the Free Software Foundation
* - The revised BSD license (without advertising clause)
*
* ---------------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
* ---------------------------------------------------------------------------
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
* ---------------------------------------------------------------------------
*/
#include <stdio.h>
#include <stdint.h>
#define MAGIC "LARCHIVE"
#define MAX_PATHLEN 1024
#define BOOTBLOCK_SIZE 20480
#define BOOTBLOCK_NAME "bootblock"
#define BOOTBLOCK_NAME_LEN 16
typedef uint64_t u64;
typedef int64_t s64;
typedef uint32_t u32;
typedef int32_t s32;
typedef uint8_t u8;
/* NOTE -- This and the coreboot lar.h may NOT be in sync. Be careful. */
struct lar_header {
char magic[8];
u32 len;
u32 reallen;
u32 checksum;
u32 compchecksum;
/* Filenames are limited to 2^31-1-sizeof(lar_header)-1 bytes.
* "Nobody will ever need more than 640k" */
u32 offset;
/* Compression:
* 0 = no compression
* 1 = lzma
* 2 = nrv2b
* 3 = zeroes
*/
u32 compression;
u64 entry;
u64 loadaddress;
};
enum compalgo {
ALGO_NONE = 0,
ALGO_LZMA = 1,
ALGO_NRV2B = 2,
ALGO_ZEROES = 3,
/* invalid should always be the last entry. */
ALGO_INVALID
};

461
payloads/bayou/util/pbuilder/liblar/lib.c Normal file
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@@ -0,0 +1,461 @@
/*
* This file is part of the bayou project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <arpa/inet.h>
#include "liblar.h"
#include "self.h"
static int lar_compress(struct LAR *lar, int algo, char *src, char *dst,
int len)
{
int ret;
if (!lar->cfuncs[algo])
return -1;
lar->cfuncs[algo] (src, len, dst, &ret);
return ret;
}
static int lar_decompress(struct LAR *lar, int algo, char *src, char *dst,
int slen, int dlen)
{
if (!lar->dfuncs[algo])
return -1;
lar->dfuncs[algo] (src, slen, dst, dlen);
return dlen;
}
static struct LARHeader *lar_get_header(struct LAR *lar, const char *filename)
{
char *buffer;
int offset = 0;
struct LARHeader *lheader = NULL;
struct lar_header *header;
printf("Getting %s\n", filename);
buffer = malloc(sizeof(struct lar_header) + MAX_PATHLEN);
if (buffer == NULL)
return NULL;
while (1) {
int ret;
if (lseek(lar->fd, offset, SEEK_SET) == -1)
goto err;
ret = read(lar->fd, buffer, sizeof(struct lar_header));
if (ret <= 0)
goto err;
header = (struct lar_header *)buffer;
if (strncmp(header->magic, MAGIC, sizeof(MAGIC)))
goto err;
ret = read(lar->fd, buffer + sizeof(struct lar_header),
ntohl(header->offset) - sizeof(struct lar_header));
if (ret <= 0)
goto err;
if (!strcmp(buffer + sizeof(struct lar_header), filename))
break;
offset += ntohl(header->offset) +
((ntohl(header->len) + 15) & ~0xF);
}
lheader = calloc(sizeof(struct LARHeader), 1);
if (lheader == NULL)
goto err;
lheader->hoffset = offset;
lheader->offset = offset + ntohl(header->offset);
lheader->reallen = ntohl(header->reallen);
lheader->len = ntohl(header->len);
lheader->loadaddress = ntohl(header->loadaddress);
lheader->compression = ntohl(header->compression);
lheader->entry = ntohl(header->entry);
lheader->checksum = ntohl(header->checksum);
err:
free(buffer);
return lheader;
}
static int LAR_AppendBlob(struct LAR *lar, unsigned char *buffer,
int len, int rlen, struct LARAttr *attr)
{
int nlen, nsize, lsize, i;
struct lar_header *header;
u8 *lptr;
u32 csum = 0;
if (attr == NULL)
return -1;
nlen = strlen(attr->name) + 1;
if (nlen > MAX_PATHLEN - 1)
nlen = MAX_PATHLEN - 1;
nsize = (nlen + 15) & ~0xF;
lsize = sizeof(struct lar_header) + nsize + len;
lptr = calloc(lsize + 1, 1);
if (lptr == NULL)
return -1;
header = (struct lar_header *)lptr;
memcpy(header->magic, MAGIC, 8);
header->reallen = htonl(rlen);
header->len = htonl(len);
header->offset = htonl(lsize - len);
header->loadaddress = htonl(attr->loadaddr);
header->compression = htonl(attr->compression);
header->entry = htonl(attr->entry);
strncpy(((char *)header) + sizeof(struct lar_header), attr->name, nlen);
for (i = 0; i < sizeof(struct lar_header) + nsize; i += 4)
csum += *((u32 *) (lptr + i));
for (i = 0; i < len; i += 4) {
/*
* The checksum needs to include the 16 byte padding at
* the end of the data before the next lar header. The
* problem is that the padding isn't going to be in the
* buffer, and if we try to read off the end of the buffer,
* we are just asking for trouble. So account for the
* situation where the datalen is not a multiple of four
* and get a safe value to add into the checksum.
* The rest of the padding will be zero, and can be safely
* ignored here.
*/
if ((len - i) < 4) {
u32 val = 0;
int t;
for (t = 0; t < (len - i); t++)
val |= *((u8 *) buffer + (i + t)) << (t * 8);
csum += val;
} else
csum += *((u32 *) (buffer + i));
}
header->checksum = (u32) (~0 - csum);
lseek(lar->fd, 0, SEEK_END);
/* FIXME: Error check here. */
write(lar->fd, header, sizeof(struct lar_header) + nsize);
write(lar->fd, buffer, len);
/* Add in padding to the next 16 byte boundary. */
if (lsize & 0xF) {
int i;
char null = '\0';
for (i = lsize & 0xF; i < 0x10; i++)
write(lar->fd, &null, 1);
}
return 0;
}
int LAR_AppendBuffer(struct LAR *lar, unsigned char *buffer, int len,
struct LARAttr *attr)
{
unsigned char *tbuf;
int rlen, ret = -1;
if (attr->compression == ALGO_NONE)
return LAR_AppendBlob(lar, buffer, len, len, attr);
tbuf = malloc(len);
if (tbuf == NULL)
return -1;
rlen = lar_compress(lar, attr->compression, (char *)buffer,
(char *)tbuf, len);
if (rlen > 0)
ret = LAR_AppendBlob(lar, tbuf, rlen, len, attr);
free(tbuf);
return ret;
}
int LAR_AppendSelf(struct LAR *lar, const char *filename, struct LARAttr *attr)
{
unsigned char *buffer;
int len = elf_to_self(filename, &buffer,
lar->cfuncs[attr->compression]);
int ret;
if (len == -1)
return -1;
ret = LAR_AppendBlob(lar, buffer, len, len, attr);
free(buffer);
return ret;
}
int LAR_AppendFile(struct LAR *lar, const char *filename, struct LARAttr *attr)
{
int fd;
struct stat s;
char *filep;
int ret;
if (iself((char *)filename))
return LAR_AppendSelf(lar, filename, attr);
fd = open(filename, O_RDONLY);
if (fd == -1)
return -1;
if (fstat(fd, &s))
return -1;
filep = (char *)mmap(0, s.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (filep == MAP_FAILED)
return -1;
ret = LAR_AppendBuffer(lar, (unsigned char *)filep, s.st_size, attr);
munmap(filep, s.st_size);
return ret;
}
int LAR_DeleteFile(struct LAR *lar, const char *filename)
{
struct LARHeader *header = lar_get_header(lar, filename);
int len, ret = -1;
char *filep, *buffer;
if (header == NULL)
return -1;
buffer = malloc(4096);
if (buffer == NULL)
return -1;
len = header->offset + header->len;
/* First, map the space and zero it out. */
filep = (char *)mmap(0, len, PROT_READ, MAP_SHARED, lar->fd,
header->hoffset);
if (filep == MAP_FAILED)
return -1;
memset(filep, 0, len);
munmap(filep, len);
/* Now move the rest of the LAR into place. */
/* FIXME: This does not account for the bootblock! */
int dst = header->hoffset;
int src = header->hoffset + len;
while (1) {
int l, w;
if (lseek(lar->fd, src, SEEK_SET))
goto err;
l = read(lar->fd, buffer, 8192);
if (l == -1)
goto err;
if (l == 0)
goto err;
if (lseek(lar->fd, dst, SEEK_SET))
goto err;
w = write(lar->fd, buffer, l);
if (w <= 0)
goto err;
dst += w;
src += w;
}
ret = 0;
err:
free(buffer);
return ret;
}
void LAR_CloseFile(struct LARFile *file)
{
if (file != NULL) {
if (file->buffer != NULL)
free(file->buffer);
free(file);
}
}
struct LARFile *LAR_MapFile(struct LAR *lar, const char *filename)
{
struct LARFile *file;
struct LARHeader *header = lar_get_header(lar, filename);
char *filep;
int ret;
if (header == NULL)
return NULL;
file = calloc(sizeof(struct LARFile), 1);
if (file == NULL)
return NULL;
file->len = header->reallen;
file->buffer = calloc(header->reallen, 1);
if (file->buffer == NULL)
goto err;
/*
* The offset needs to be a multiple of PAGE_SIZE, so just mmap
* from offset 0, its easier then doing the math.
*/
filep = mmap(0, header->offset + header->len,
PROT_READ, MAP_SHARED, lar->fd, 0);
if (filep == MAP_FAILED) {
printf("Map failed: %m\n");
goto err;
}
if (header->compression != ALGO_NONE) {
ret = lar_decompress(lar, header->compression,
filep + header->offset, file->buffer,
header->len, header->reallen);
} else {
memcpy(file->buffer, filep + header->offset, header->len);
ret = header->len;
}
munmap(filep, header->offset + header->len);
if (ret == header->reallen)
return file;
err:
if (file->buffer)
free(file->buffer);
free(file);
return NULL;
}
int LAR_SetCompressionFuncs(struct LAR *lar, int algo,
LAR_CompFunc cfunc, LAR_DecompFunc dfunc)
{
if (algo >= ALGO_INVALID)
return -1;
lar->cfuncs[algo] = cfunc;
lar->dfuncs[algo] = dfunc;
return 0;
}
void LAR_Close(struct LAR *lar)
{
if (lar != NULL) {
if (lar->fd)
close(lar->fd);
free(lar);
}
}
struct LAR *LAR_Open(const char *filename)
{
struct LAR *lar = calloc(sizeof(struct LAR), 1);
if (lar == NULL)
return NULL;
lar->fd = open(filename, O_RDWR);
if (lar->fd > 0)
return lar;
free(lar);
return NULL;
}
struct LAR *LAR_Create(const char *filename)
{
struct LAR *lar = calloc(sizeof(struct LAR), 1);
if (lar == NULL)
return NULL;
lar->fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
if (lar->fd > 0)
return lar;
free(lar);
return NULL;
}
void LAR_SetAttrs(struct LARAttr *attrs, char *name, int algo)
{
if (attrs == NULL)
return;
memset(attrs, 0, sizeof(*attrs));
snprintf(attrs->name, sizeof(attrs->name) - 1, name);
attrs->compression = algo;
}

75
payloads/bayou/util/pbuilder/liblar/liblar.h Normal file
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@@ -0,0 +1,75 @@
/*
* This file is part of the bayou project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _LIBLAR_H_
#define _LIBLAR_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lar.h"
typedef void (*LAR_CompFunc) (char *, int, char *, int *);
typedef void (*LAR_DecompFunc) (char *, int, char *, int);
struct LAR {
int fd;
LAR_CompFunc cfuncs[ALGO_INVALID];
LAR_DecompFunc dfuncs[ALGO_INVALID];
};
struct LARHeader {
u32 len;
u32 reallen;
u32 checksum;
u32 compression;
u64 loadaddress;
u64 entry;
/* These are the offsets within the file. */
unsigned int offset;
unsigned int hoffset;
};
struct LARAttr {
char name[MAX_PATHLEN];
u64 loadaddr;
int compression;
u64 entry;
};
struct LARFile {
int len;
char *buffer;
};
int LAR_AppendBuffer(struct LAR *lar, unsigned char *buffer, int len,
struct LARAttr *attr);
int LAR_AppendSelf(struct LAR *lar, const char *filename, struct LARAttr *attr);
int LAR_AppendFile(struct LAR *lar, const char *filename, struct LARAttr *attr);
int LAR_DeleteFile(struct LAR *lar, const char *filename);
void LAR_CloseFile(struct LARFile *file);
struct LARFile *LAR_MapFile(struct LAR *lar, const char *filename);
int LAR_SetCompressionFuncs(struct LAR *lar, int algo,
LAR_CompFunc cfunc, LAR_DecompFunc dfunc);
void LAR_Close(struct LAR *lar);
struct LAR *LAR_Open(const char *filename);
struct LAR *LAR_Create(const char *filename);
void LAR_SetAttrs(struct LARAttr *attrs, char *name, int algo);
#endif

206
payloads/bayou/util/pbuilder/liblar/self.c Normal file
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@@ -0,0 +1,206 @@
/*
* This file is part of the bayou project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* Includes code from util/lar from coreboot-v3
*
* Copyright (C) 2006-2007 coresystems GmbH
* Copyright (C) 2007 Patrick Georgi <patrick@georgi-clan.de>
* Copyright (C) 2007 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <elf.h>
#include <sys/mman.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdint.h>
typedef uint64_t u64;
typedef int64_t s64;
typedef uint32_t u32;
typedef int32_t s32;
typedef uint8_t u8;
#include "self.h"
int elf_to_self(const char *filename, unsigned char **buffer,
void (*compress) (char *, int, char *, int *))
{
struct stat s;
Elf32_Phdr *phdr;
Elf32_Ehdr *ehdr;
Elf32_Shdr *shdr;
void *filep;
char *header, *strtab;
unsigned char *sptr;
int headers, segments = 1, isize = 0, osize = 0, doffset = 0, fd, i;
struct self_segment *segs;
if (stat(filename, &s)) {
printf("Unable to stat %s: %m\n", filename);
return -1;
}
fd = open(filename, O_RDONLY);
if (fd == -1) {
printf("Unable to open %s: %m\n", filename);
return -1;
}
/* Map the file so that we can easily parse it. */
filep = (void *)
mmap(0, s.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (filep == MAP_FAILED) {
close(fd);
return -1;
}
ehdr = (Elf32_Ehdr *) filep;
headers = ehdr->e_phnum;
header = (char *)ehdr;
phdr = (Elf32_Phdr *) & (header[ehdr->e_phoff]);
shdr = (Elf32_Shdr *) & (header[ehdr->e_shoff]);
strtab = &header[shdr[ehdr->e_shstrndx].sh_offset];
/* Count number of headers - look for the .notes.pinfo section. */
for (i = 0; i < ehdr->e_shnum; i++) {
char *name;
if (i == ehdr->e_shstrndx)
continue;
if (shdr[i].sh_size == 0)
continue;
name = (char *)(strtab + shdr[i].sh_name);
if (!strcmp(name, ".note.pinfo"))
segments++;
}
/*
* Now, regular headers - we only care about PT_LOAD headers,
* because thats what we're actually going to load.
*/
for (i = 0; i < headers; i++) {
if (phdr[i].p_type != PT_LOAD)
continue;
/* Empty segments are never interesting. */
if (phdr[i].p_memsz == 0)
continue;
isize += phdr[i].p_filesz;
segments++;
}
/* Allocate a block of memory to store the SELF in. */
sptr = calloc((segments * sizeof(struct self_segment)) + isize, 1);
doffset = (segments * sizeof(struct self_segment));
if (sptr == NULL)
goto err;
segs = (struct self_segment *)sptr;
segments = 0;
for (i = 0; i < ehdr->e_shnum; i++) {
char *name;
if (i == ehdr->e_shstrndx)
continue;
if (shdr[i].sh_size == 0)
continue;
name = (char *)(strtab + shdr[i].sh_name);
if (!strcmp(name, ".note.pinfo")) {
segs[segments].type = SELF_TYPE_PARAMS;
segs[segments].load_addr = 0;
segs[segments].len = (u32) shdr[i].sh_size;
segs[segments].offset = doffset;
memcpy((unsigned long *)(sptr + doffset),
&header[shdr[i].sh_offset], shdr[i].sh_size);
doffset += segs[segments].len;
osize += segs[segments].len;
segments++;
}
}
for (i = 0; i < headers; i++) {
if (phdr[i].p_type != PT_LOAD)
continue;
if (phdr[i].p_memsz == 0)
continue;
segs[segments].type = SELF_TYPE_DATA;
segs[segments].load_addr = (u64) phdr[i].p_paddr;
segs[segments].mem_len = (u32) phdr[i].p_memsz;
segs[segments].offset = doffset;
compress((char *)&header[phdr[i].p_offset],
phdr[i].p_filesz,
(char *)(sptr + doffset), (int *)&segs[segments].len);
doffset += segs[segments].len;
osize += segs[segments].len;
segments++;
}
segs[segments].type = SELF_TYPE_ENTRY;
segs[segments++].load_addr = (unsigned long long)ehdr->e_entry;
*buffer = sptr;
munmap(filep, s.st_size);
close(fd);
return (segments * sizeof(struct self_segment)) + osize;
err:
munmap(filep, s.st_size);
close(fd);
return -1;
}
int iself(char *filename)
{
Elf32_Ehdr ehdr;
int fd = open(filename, O_RDONLY);
int ret = 0;
if (fd == -1)
return 0;
if (read(fd, &ehdr, sizeof(ehdr)) == sizeof(ehdr))
ret = !memcmp(ehdr.e_ident, ELFMAG, 4);
close(fd);
return ret;
}

42
payloads/bayou/util/pbuilder/liblar/self.h Normal file
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@@ -0,0 +1,42 @@
/*
* This file is part of the bayou project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef SELF_H_
#define SELF_H_
struct self_segment {
u32 type;
u32 offset;
u64 load_addr;
u32 len;
u32 mem_len;
};
#define SELF_TYPE_CODE 0x45444F43
#define SELF_TYPE_DATA 0x41544144
#define SELF_TYPE_BSS 0x20535342
#define SELF_TYPE_PARAMS 0x41524150
#define SELF_TYPE_ENTRY 0x52544E45
int elf_to_self(const char *filename, unsigned char **buffer,
void (*compress) (char *, int, char *, int *));
int iself(char *filename);
#endif