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/*
Copyright (C) 1994 M. Hagiya, W. Schelter, T. Yuasa
This file is part of GNU Common Lisp, herein referred to as GCL
GCL is free software; you can redistribute it and/or modify it under
the terms of the GNU LIBRARY GENERAL PUBLIC LICENSE as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCL 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 Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with GCL; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
unixsave.c
*/
#ifdef HAVE_FCNTL
#include <fcntl.h>
#else
#include <sys/file.h>
#endif
#ifdef HAVE_AOUT
#undef BSD
#undef ATT
#define BSD
#endif
#ifdef BSD
#include <a.out.h>
#endif
#ifdef ATT
#include <syms.h>
#include <filehdr.h>
#include <aouthdr.h>
#include <scnhdr.h>
#endif
#ifdef E15
#include <a.out.h>
extern etext;
#endif
filecpy(to, from, n)
FILE *to, *from;
register int n;
{
char buffer[BUFSIZ];
for (;;)
if (n > BUFSIZ) {
fread(buffer, BUFSIZ, 1, from);
fwrite(buffer, BUFSIZ, 1, to);
n -= BUFSIZ;
} else if (n > 0) {
fread(buffer, 1, n, from);
fwrite(buffer, 1, n, to);
break;
} else
break;
}
memory_save(original_file, save_file)
char *original_file, *save_file;
{ /* MEM_SAVE_LOCALS; */
struct filehdr Ehdr;
struct aouthdr header;
struct scnhdr shdr[10];
HDRR symhdr;
struct scnhdr *text_section;
struct scnhdr *rdata_section;
struct scnhdr *data_section;
struct scnhdr *lit8_section;
struct scnhdr *lit4_section;
struct scnhdr *sdata_section;
struct scnhdr *sbss_section;
struct scnhdr *bss_section;
char *data_begin, *data_end;
int original_data;
FILE *original, *save;
register int n;
register char *p;
extern char *sbrk();
fclose(stdin);
original = fopen(original_file, "r");
if (stdin != original || original->_file != 0) {
fprintf(stderr, "Can't open the original file.\n");
exit(1);
}
setbuf(original, stdin_buf);
fclose(stdout);
unlink(save_file);
n = open(save_file, O_CREAT|O_WRONLY, 0777);
if (n != 1 || (save = fdopen(n, "w")) != stdout) {
fprintf(stderr, "Can't open the save file.\n");
exit(1);
}
setbuf(save, stdout_buf);
fread(&Ehdr,sizeof(Ehdr),1,original);
fread(&header,Ehdr.f_opthdr, 1,original);
{int i=0;
int pagesize = getpagesize();
/* core_end = (char *)((int) (core_end + pagesize - 1) & ~(pagesize - 1));
*/
#define READ_SCNHDR(name,str) \
name = &shdr[i]; \
fread(name,sizeof(struct scnhdr),1,original); \
if(strcmp(str,(name)->s_name)) printf("got %s not %s sections", \
(name)->s_name,str); i++;
READ_SCNHDR(text_section,".text") ;
READ_SCNHDR(rdata_section,".rdata");
READ_SCNHDR(data_section,".data");
READ_SCNHDR(lit8_section, ".lit8");
READ_SCNHDR(lit4_section, ".lit4");
READ_SCNHDR(sdata_section, ".sdata");
READ_SCNHDR(sbss_section,".sbss");
READ_SCNHDR(bss_section,".bss");
if(i!= Ehdr.f_nscns) printf("wrong number of sections");
}
/*
READ_HEADER;
FILECPY_HEADER;
*/
#define ALTER_SCN(name,size,addr,scnptr) (name)->s_size = size; \
(name)->s_paddr = addr; \
(name)->s_vaddr = addr; \
(name)->s_scnptr = scnptr;
original_data = header.a_data;
data_begin = (char *)rdata_section->s_vaddr;
header.a_data = (int) core_end - rdata_section->s_vaddr;
header.a_bss = 0;
ALTER_SCN(data_section, header.a_data - rdata_section->s_size
,data_section->s_vaddr, data_section->s_scnptr);
ALTER_SCN(lit4_section,0,data_section->s_vaddr,data_section->s_scnptr);
ALTER_SCN(lit8_section,0,data_section->s_vaddr,data_section->s_scnptr);
ALTER_SCN(sbss_section,0,data_section->s_vaddr,data_section->s_scnptr);
ALTER_SCN(sdata_section,0,data_section->s_vaddr,data_section->s_scnptr)
;
ALTER_SCN(bss_section,0, /* sbrk(0) - core_end,*/
data_section->s_vaddr,data_section->s_scnptr);
header.bsize = bss_section->s_size;
Ehdr.f_symptr += (header.dsize - original_data);
fwrite(&Ehdr,1,sizeof(Ehdr),save);
fwrite(&header,1,Ehdr.f_opthdr,save);
fwrite(&shdr[0],sizeof(struct scnhdr),Ehdr.f_nscns,save);
filecpy(save,original,rdata_section->s_scnptr - ftell(save));
/* p = data_begin; n= header.a_data;
while(--n>=0)
{putc(*p,save); p++;} */
for (n = header.a_data, p = data_begin; ; n -= BUFSIZ, p += BUFSIZ)
{ {int jj;
jj = ftell(save);}
if (n > BUFSIZ)
fwrite(p, BUFSIZ, 1, save);
else if (n > 0) {
fwrite(p, 1, n, save);
break;
} else
break;}
fseek(original, original_data, 1);
COPY_TO_SAVE;
{int diff = (header.dsize - original_data);
fseek(original,Ehdr.f_symptr - diff,0);
fread(&symhdr,sizeof(symhdr),1,original);
if(symhdr.cbLineOffset)symhdr.cbLineOffset+= diff;
if(symhdr.cbDnOffset)symhdr.cbDnOffset+= diff;
if(symhdr.cbPdOffset)symhdr.cbPdOffset+= diff;
if(symhdr.cbSymOffset)symhdr.cbSymOffset+= diff;
if(symhdr.cbOptOffset)symhdr.cbOptOffset+= diff;
if(symhdr.cbAuxOffset)symhdr.cbAuxOffset+= diff;
if(symhdr.cbSsOffset)symhdr.cbSsOffset+= diff;
if(symhdr.cbSsExtOffset)symhdr.cbSsExtOffset+= diff;
if(symhdr.cbFdOffset)symhdr.cbFdOffset+= diff;
if(symhdr.cbRfdOffset)symhdr.cbRfdOffset+= diff;
if(symhdr.cbExtOffset)symhdr.cbExtOffset+= diff;
fseek(save,Ehdr.f_symptr ,0);
fwrite(&symhdr,sizeof(symhdr),1,save);
}
fclose(original);
fclose(save);
}
Lsave()
{
char filename[256];
check_arg(1);
check_type_or_pathname_string_symbol_stream(&vs_base[0]);
coerce_to_filename(vs_base[0], filename);
_cleanup();
/*
{
FILE *p;
int nfile;
nfile = NUMBER_OPEN_FILES;
for (p = &_iob[3]; p < &_iob[nfile]; p++)
fclose(p);
}
*/
memory_save(kcl_self, filename);
/*
_exit(0);
*/
exit(0);
/* no return */
}
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