static void read_section(struct GlobalVars *gv,struct ObjectUnit *u,
uint32_t index,struct vobj_symbol *vsyms,int nsyms)
{
struct Section *s;
lword dsize,fsize;
int nrelocs;
uint8_t type = ST_DATA;
uint8_t prot = SP_READ;
uint8_t flags = 0;
uint8_t align,*data;
char *attr;
char *name = p;
struct Reloc *last_reloc;
int last_sym = -1;
lword last_offs;
uint16_t last_bpos = INVALID;
skip_string(); /* section name */
for (attr=p; *attr; attr++) {
switch (tolower((unsigned char)*attr)) {
case 'w': prot |= SP_WRITE; break;
case 'x': prot |= SP_EXEC; break;
case 'c': type = ST_CODE; break;
case 'd': type = ST_DATA; break;
case 'u': type = ST_UDATA; flags |= SF_UNINITIALIZED; break;
case 'a': flags |= SF_ALLOC;
}
}
skip_string();
read_number(); /* ignore flags */
align = (uint8_t)lshiftcnt(read_number());
dsize = read_number(); /* total size of section */
nrelocs = (int)read_number(); /* number of relocation entries */
fsize = read_number(); /* size in file, without 0-bytes */
if (type == ST_UDATA) {
data = NULL;
}
else if (dsize > fsize) { /* recreate 0-bytes at end of section */
data = alloczero((size_t)dsize);
memcpy(data,p,(size_t)fsize);
}
else
data = p;
/* create and add section */
p += fsize;
s = add_section(u,name,data,(unsigned long)dsize,type,flags,prot,align,0);
s->id = index;
/* create relocations and unkown symbol references for this section */
for (last_reloc=NULL,last_offs=-1; nrelocs>0; nrelocs--) {
struct Reloc *r;
char *xrefname = NULL;
lword offs,mask,addend;
uint16_t bpos,bsiz;
uint8_t flags;
int sym_idx;
/* read one relocation entry */
type = (uint8_t)read_number();
offs = read_number();
bpos = (uint16_t)read_number();
bsiz = (uint16_t)read_number();
mask = read_number();
addend = read_number();
sym_idx = (int)read_number() - 1; /* symbol index */
flags = 0;
if (type>R_NONE && type<=LAST_STANDARD_RELOC &&
offs>=0 && bsiz<=(sizeof(lword)<<3) &&
sym_idx>=0 && sym_idx<nsyms) {
if (vsyms[sym_idx].type == LABSYM) {
xrefname = NULL;
index = vsyms[sym_idx].sec;
}
else if (vsyms[sym_idx].type == IMPORT) {
xrefname = vsyms[sym_idx].name;
if (vsyms[sym_idx].flags & WEAK)
flags |= RELF_WEAK; /* undefined weak symbol */
index = 0;
}
else {
/* VOBJ relocation not supported */
error(115,getobjname(u),fff[u->lnkfile->format]->tname,
(int)type,(lword)offs,(int)bpos,(int)bsiz,(lword)mask,
vsyms[sym_idx].name,(int)vsyms[sym_idx].type);
}
if (sym_idx==last_sym && offs==last_offs && bpos==last_bpos &&
last_reloc!=NULL) {
r = last_reloc;
}
else {
r = newreloc(gv,s,xrefname,NULL,index,(unsigned long)offs,type,addend);
r->flags |= flags;
last_reloc = r;
last_offs = offs;
last_bpos = bpos;
last_sym = sym_idx;
}
addreloc(s,r,bpos,bsiz,mask);
/* make sure that section reflects the addend for other formats */
writesection(gv,data+(uint32_t)offs,r,addend);
}
else if (type != R_NONE) {
/* VOBJ relocation not supported */
error(115,getobjname(u),fff[u->lnkfile->format]->tname,
(int)type,(lword)offs,(int)bpos,(int)bsiz,(lword)mask,
(sym_idx>=0&&sym_idx<nsyms) ? vsyms[sym_idx].name : "?",
(sym_idx>=0&&sym_idx<nsyms) ? (int)vsyms[sym_idx].type : 0);
}
}
}
/** ini_puts()
* \param Section the name of the section to write the string in
* \param Key the name of the entry to write, or NULL to erase all keys in the section
* \param Value a pointer to the buffer the string, or NULL to erase the key
* \param Filename the name and full path of the .ini file to write to
*
* \return 1 if successful, otherwise 0
*/
int ini_puts(const TCHAR *Section, const TCHAR *Key, const TCHAR *Value, const TCHAR *Filename)
{
INI_FILETYPE rfp;
INI_FILETYPE wfp;
TCHAR *sp, *ep;
TCHAR LocalBuffer[INI_BUFFERSIZE];
int len, match, count;
assert(Filename!=NULL);
if (!ini_openread(Filename, &rfp)) {
/* If the .ini file doesn't exist, make a new file */
if (Key!=NULL && Value!=NULL) {
if (!ini_openwrite(Filename, &wfp))
return 0;
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
ini_close(&wfp);
} /* if */
return 1;
} /* if */
/* If parameters Key and Value are valid (so this is not an "erase" request)
* and the setting already exists and it already has the correct value, do
* nothing. This early bail-out avoids rewriting the INI file for no reason.
*/
if (Key!=NULL && Value!=NULL) {
match = getkeystring(&rfp, Section, Key, -1, -1, LocalBuffer, sizearray(LocalBuffer));
if (match && _tcscmp(LocalBuffer,Value)==0) {
ini_close(&rfp);
return 1;
} /* if */
/* key not found, or different value -> proceed (but rewind the input file first) */
ini_rewind(&rfp);
} /* if */
/* Get a temporary file name to copy to. Use the existing name, but with
* the last character set to a '~'.
*/
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
if (!ini_openwrite(LocalBuffer, &wfp)) {
ini_close(&rfp);
return 0;
} /* if */
/* Move through the file one line at a time until a section is
* matched or until EOF. Copy to temp file as it is read.
*/
count = 0;
len = (Section != NULL) ? _tcslen(Section) : 0;
if (len > 0) {
do {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* Failed to find section, so add one to the end */
if (Key!=NULL && Value!=NULL) {
ini_write(INI_LINETERM, &wfp); /* force a new line (there may not have been one) behind the last line of the INI file */
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
/* Clean up and rename */
ini_close(&rfp);
ini_close(&wfp);
ini_remove(Filename);
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
ini_rename(LocalBuffer, Filename);
return 1;
} /* if */
/* Copy the line from source to dest, but not if this is the section that
* we are looking for and this section must be removed
*/
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, ']');
match = (*sp == '[' && ep != NULL && (int)(ep-sp-1) == len && _tcsnicmp(sp + 1,Section,len) == 0);
if (!match || Key!=NULL) {
/* Remove blank lines, but insert a blank line (possibly one that was
* removed on the previous iteration) before a new section. This creates
* "neat" INI files.
*/
if (_tcslen(sp) > 0) {
if (*sp == '[' && count > 0)
ini_write(INI_LINETERM, &wfp);
ini_write(sp, &wfp);
count++;
} /* if */
} /* if */
} while (!match);
} /* if */
/* Now that the section has been found, find the entry. Stop searching
* upon leaving the section's area. Copy the file as it is read
* and create an entry if one is not found.
*/
len = (Key!=NULL) ? _tcslen(Key) : 0;
for( ;; ) {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* EOF without an entry so make one */
if (Key!=NULL && Value!=NULL) {
ini_write(INI_LINETERM, &wfp); /* force a new line (there may not have been one) behind the last line of the INI file */
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
/* Clean up and rename */
ini_close(&rfp);
ini_close(&wfp);
ini_remove(Filename);
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
ini_rename(LocalBuffer, Filename);
return 1;
} /* if */
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, '='); /* Parse out the equal sign */
if (ep == NULL)
ep = _tcschr(sp, ':');
match = (ep != NULL && (int)(ep-sp) == len && _tcsnicmp(sp,Key,len) == 0);
if ((Key!=NULL && match) || *sp == '[')
break; /* found the key, or found a new section */
/* in the section that we re-write, do not copy empty lines */
if (Key!=NULL && _tcslen(sp) > 0)
ini_write(sp, &wfp);
} /* for */
if (*sp == '[') {
/* found start of new section, the key was not in the specified
* section, so we add it just before the new section
*/
if (Key!=NULL && Value!=NULL) {
/* We cannot use "writekey()" here, because we need to preserve the
* contents of LocalBuffer.
*/
ini_write(Key, &wfp);
ini_write("=", &wfp);
ini_write(Value, &wfp);
ini_write(INI_LINETERM INI_LINETERM, &wfp); /* put a blank line between the current and the next section */
} /* if */
/* write the new section header that we read previously */
ini_write(sp, &wfp);
} else {
/* We found the key; ignore the line just read (with the key and
* the current value) and write the key with the new value.
*/
if (Key!=NULL && Value!=NULL)
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
/* Copy the rest of the INI file (removing empty lines, except before a section) */
while (ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
sp = skipleading(LocalBuffer);
if (_tcslen(sp) > 0) {
if (*sp == '[')
ini_write(INI_LINETERM, &wfp);
ini_write(sp, &wfp);
} /* if */
} /* while */
/* Clean up and rename */
ini_close(&rfp);
ini_close(&wfp);
ini_remove(Filename);
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
ini_rename(LocalBuffer, Filename);
return 1;
}
/** ini_puts()
* \param Section the name of the section to write the string in
* \param Key the name of the entry to write, or NULL to erase all keys in the section
* \param Value a pointer to the buffer the string, or NULL to erase the key
* \param Filename the name and full path of the .ini file to write to
*
* \return 1 if successful, otherwise 0
*/
int ini_puts(const TCHAR *Section, const TCHAR *Key, const TCHAR *Value, const TCHAR *Filename)
{
INI_FILETYPE rfp;
INI_FILETYPE wfp;
INI_FILEPOS mark;
TCHAR *sp, *ep;
TCHAR LocalBuffer[INI_BUFFERSIZE];
int len, match, flag, cachelen;
assert(Filename != NULL);
if (!ini_openread(Filename, &rfp)) {
/* If the .ini file doesn't exist, make a new file */
if (Key != NULL && Value != NULL) {
if (!ini_openwrite(Filename, &wfp))
return 0;
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
(void)ini_close(&wfp);
} /* if */
return 1;
} /* if */
/* If parameters Key and Value are valid (so this is not an "erase" request)
* and the setting already exists and it already has the correct value, do
* nothing. This early bail-out avoids rewriting the INI file for no reason.
*/
if (Key != NULL && Value != NULL) {
(void)ini_tell(&rfp, &mark);
match = getkeystring(&rfp, Section, Key, -1, -1, LocalBuffer, sizearray(LocalBuffer));
if (match && _tcscmp(LocalBuffer,Value) == 0) {
(void)ini_close(&rfp);
return 1;
} /* if */
/* key not found, or different value -> proceed (but rewind the input file first) */
(void)ini_seek(&rfp, &mark);
} /* if */
/* Get a temporary file name to copy to. Use the existing name, but with
* the last character set to a '~'.
*/
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
if (!ini_openwrite(LocalBuffer, &wfp)) {
(void)ini_close(&rfp);
return 0;
} /* if */
(void)ini_tell(&rfp, &mark);
cachelen = 0;
/* Move through the file one line at a time until a section is
* matched or until EOF. Copy to temp file as it is read.
*/
len = (Section != NULL) ? _tcslen(Section) : 0;
if (len > 0) {
do {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* Failed to find section, so add one to the end */
flag = cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
if (Key!=NULL && Value!=NULL) {
if (!flag)
(void)ini_write(INI_LINETERM, &wfp); /* force a new line behind the last line of the INI file */
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
return close_rename(&rfp, &wfp, Filename, LocalBuffer); /* clean up and rename */
} /* if */
/* Copy the line from source to dest, but not if this is the section that
* we are looking for and this section must be removed
*/
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, ']');
match = (*sp == '[' && ep != NULL && (int)(ep-sp-1) == len && _tcsnicmp(sp + 1,Section,len) == 0);
if (!match || Key != NULL) {
if (!cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE)) {
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} /* if */
} /* if */
} while (!match);
} /* if */
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
/* when deleting a section, the section head that was just found has not been
* copied to the output file, but because this line was not "accumulated" in
* the cache, the position in the input file was reset to the point just
* before the section; this must now be skipped (again)
*/
if (Key == NULL) {
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
(void)ini_tell(&rfp, &mark);
} /* if */
/* Now that the section has been found, find the entry. Stop searching
* upon leaving the section's area. Copy the file as it is read
* and create an entry if one is not found.
*/
len = (Key!=NULL) ? _tcslen(Key) : 0;
for( ;; ) {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* EOF without an entry so make one */
flag = cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
if (Key!=NULL && Value!=NULL) {
if (!flag)
(void)ini_write(INI_LINETERM, &wfp); /* force a new line behind the last line of the INI file */
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
return close_rename(&rfp, &wfp, Filename, LocalBuffer); /* clean up and rename */
} /* if */
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, '='); /* Parse out the equal sign */
if (ep == NULL)
ep = _tcschr(sp, ':');
match = (ep != NULL && (int)(skiptrailing(ep,sp)-sp) == len && _tcsnicmp(sp,Key,len) == 0);
if ((Key != NULL && match) || *sp == '[')
break; /* found the key, or found a new section */
/* copy other keys in the section */
if (Key == NULL) {
(void)ini_tell(&rfp, &mark); /* we are deleting the entire section, so update the read position */
} else {
if (!cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE)) {
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} /* if */
} /* if */
} /* for */
/* the key was found, or we just dropped on the next section (meaning that it
* wasn't found); in both cases we need to write the key, but in the latter
* case, we also need to write the line starting the new section after writing
* the key
*/
flag = (*sp == '[');
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
if (Key != NULL && Value != NULL)
writekey(LocalBuffer, Key, Value, &wfp);
/* cache_flush() reset the "read pointer" to the start of the line with the
* previous key or the new section; read it again (because writekey() destroyed
* the buffer)
*/
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
if (flag) {
/* the new section heading needs to be copied to the output file */
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} else {
/* forget the old key line */
(void)ini_tell(&rfp, &mark);
} /* if */
/* Copy the rest of the INI file */
while (ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
if (!cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE)) {
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} /* if */
} /* while */
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
return close_rename(&rfp, &wfp, Filename, LocalBuffer); /* clean up and rename */
}
static void rawseg_writeexec(struct GlobalVars *gv,FILE *f)
/* creates a new file for each segment, writes file name, start address */
/* and length into the output file */
{
const char *fn = "rawseg_writeexec(): ";
bool firstsec;
unsigned long addr;
FILE *segf;
struct Phdr *p;
struct LinkedSection *ls,*prevls;
struct SegReloc *srlist;
char buf[256];
for (p=gv->phdrlist; p; p=p->next) {
if (p->type==PT_LOAD && (p->flags&PHDR_USED) &&
p->start!=ADDR_NONE && p->start_vma!=ADDR_NONE) {
firstsec = TRUE;
srlist = NULL;
snprintf(buf,256,"%s.%s",gv->dest_name,p->name);
segf = fopen(buf,"wb");
if (segf == NULL) {
error(29,buf); /* cannot create file */
continue;
}
/* write file name, start address and length of segment to output */
fprintf(f,"\"%s\" 0x%llx 0x%llx\n",buf,p->start,p->mem_end-p->start);
/* write segment's sections */
for (ls=(struct LinkedSection *)gv->lnksec.first;
ls->n.next!=NULL; ls=(struct LinkedSection *)ls->n.next) {
if (ls->copybase>=(unsigned long)p->start &&
(ls->copybase+ls->size)<=(unsigned long)p->mem_end &&
(ls->flags & SF_ALLOC)) {
if (gv->keep_relocs) {
/* remember relocations, adjusted from section to segment base */
struct Reloc *r;
struct RelocInsert *ri;
struct LinkedSection *relsec;
struct Phdr *relph;
for (r=(struct Reloc *)ls->relocs.first;
r->n.next!=NULL; r=(struct Reloc *)r->n.next) {
if (ri = r->insert) {
if (r->rtype!=R_ABS || ri->bpos!=0 || ri->bsiz!=32) {
/* only absolute 32-bit relocs are supported */
error(32,fff_rawseg.tname,reloc_name[r->rtype],
(int)ri->bpos,(int)ri->bsiz,ri->mask,
ls->name,r->offset);
continue;
}
}
else
continue;
if (r->relocsect.lnk == NULL) {
if (r->flags & RELF_DYNLINK)
continue; /* NULL, because it was resolved by a sh.obj. */
else
ierror("%sReloc type %d (%s) at %s+0x%lx "
"(addend 0x%llx) is missing a relocsect.lnk",
fn,(int)r->rtype,reloc_name[r->rtype],ls->name,
r->offset,r->addend);
}
relsec = r->relocsect.lnk;
/* find out to which segment relsec belongs */
for (relph=gv->phdrlist; relph; relph=relph->next) {
if (relph->type==PT_LOAD && (relph->flags&PHDR_USED) &&
relph->start!=ADDR_NONE && relph->start_vma!=ADDR_NONE) {
if (relsec->copybase>=(unsigned long)relph->start &&
(relsec->copybase+relsec->size)<=
(unsigned long)relph->mem_end &&
(relsec->flags & SF_ALLOC))
break;
}
}
/* use segment's base address for relocation instead */
if (relph) {
lword segoffs,a,v;
struct SegReloc *newsr,*srp;
segoffs = (lword)relsec->copybase - relph->start;
v = writesection(gv,ls->data+r->offset,r,r->addend+segoffs);
if (v != 0) {
/* Calculated value doesn't fit into relocation type x ... */
if (ri = r->insert)
error(35,gv->dest_name,ls->name,r->offset,v,
reloc_name[r->rtype],(int)ri->bpos,
(int)ri->bsiz,ri->mask);
else
ierror("%sReloc (%s+%lx), type=%s, without RelocInsert",
fn,ls->name,r->offset,reloc_name[r->rtype]);
}
/* remember relocation offset and segment for later */
newsr = alloc(sizeof(struct SegReloc));
newsr->next = NULL;
newsr->seg = relph;
newsr->offset = (ls->copybase - (unsigned long)p->start) +
r->offset;
if (srp = srlist) {
while (srp->next)
srp = srp->next;
srp->next = newsr;
}
else
srlist = newsr;
}
else
ierror("%sNo segment for reloc offset section '%s'",
fn,relsec->name);
}
}
else
calc_relocs(gv,ls);
if (!firstsec) {
/* write an alignment gap, when needed */
if (ls->copybase > addr)
fwritegap(segf,ls->copybase-addr);
else if (ls->copybase < addr)
error(98,fff[gv->dest_format]->tname,ls->name,prevls->name);
}
else
firstsec = FALSE;
fwritex(segf,ls->data,ls->size);
addr = ls->copybase + ls->size;
prevls = ls;
}
}
fclose(segf);
if (srlist) {
/* write relocation files for this segment */
struct Phdr *relph;
struct SegReloc *sr;
uint32_t rcnt;
FILE *rf;
for (relph=gv->phdrlist; relph; relph=relph->next) {
for (sr=srlist,rf=NULL,rcnt=0; sr; sr=sr->next) {
if (sr->seg == relph) {
if (!rf) {
snprintf(buf,256,"%s.%s.rel%s",
gv->dest_name,p->name,relph->name);
rf = fopen(buf,"wb");
if (rf == NULL) {
error(29,buf); /* cannot create file */
continue;
}
fwritegap(rf,4); /* number of relocs will be stored here */
}
if (gv->endianess == _BIG_ENDIAN_)
fwrite32be(rf,sr->offset);
else
fwrite32le(rf,sr->offset);
rcnt++;
}
}
if (rf) {
/* write number of relocs into the first word */
fseek(rf,0,SEEK_SET);
if (gv->endianess == _BIG_ENDIAN_)
fwrite32be(rf,rcnt);
else
fwrite32le(rf,rcnt);
fclose(rf);
}
}
}
}
}
}
