Extremely useful new GDS compositing feature: Any cell that is
both an abstract view (i.e., comes from a LEF file or otherwise has been marked with the LEFview property) and a GDS_FILE property expects to insert the contents of GDS_FILE into the GDS output stream minus header and trailer, and with all internal cells renamed by prefixing them with the top-level cell name to avoid naming conflicts.
This commit is contained in:
Tim Edwards
parent
6f3d4379a5
commit
956fefdae2
|
|
@ -337,6 +337,228 @@ CalmaWrite(rootDef, f)
|
||||||
return (good);
|
return (good);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* calmaDumpStructure --
|
||||||
|
*
|
||||||
|
* Parse a structure (cell) from the GDS file. Check the name against the
|
||||||
|
* existing database and modify the name in case of a collision. Then dump
|
||||||
|
* the entire cell verbatim.
|
||||||
|
*
|
||||||
|
* ----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
bool
|
||||||
|
calmaDumpStructure(def, cellstart, outf, calmaDefHash)
|
||||||
|
CellDef *def;
|
||||||
|
off_t cellstart;
|
||||||
|
FILE *outf;
|
||||||
|
HashTable *calmaDefHash;
|
||||||
|
{
|
||||||
|
int nbytes, rtype;
|
||||||
|
char *strname = NULL, *newnameptr, newname[CALMANAMELENGTH*2];
|
||||||
|
HashEntry *he;
|
||||||
|
CellDef *edef;
|
||||||
|
|
||||||
|
/* Make sure this is a structure; if not, let the caller know we're done */
|
||||||
|
PEEKRH(nbytes, rtype);
|
||||||
|
if (nbytes <= 0) return (FALSE);
|
||||||
|
|
||||||
|
if (rtype != CALMA_BGNSTR)
|
||||||
|
{
|
||||||
|
calmaOutRH(nbytes, rtype, CALMA_I2, outf);
|
||||||
|
return (FALSE);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Read the structure name */
|
||||||
|
if (!calmaSkipExact(CALMA_BGNSTR)) goto syntaxerror;
|
||||||
|
if (!calmaReadStringRecord(CALMA_STRNAME, &strname)) goto syntaxerror;
|
||||||
|
TxPrintf("Reading \"%s\".\n", strname);
|
||||||
|
|
||||||
|
/* Output structure begin */
|
||||||
|
calmaOutRH(28, CALMA_BGNSTR, CALMA_I2, outf);
|
||||||
|
calmaOutDate(def->cd_timestamp, outf);
|
||||||
|
calmaOutDate(time((time_t *) 0), outf);
|
||||||
|
|
||||||
|
/* Prefix structure name with def name, and output new structure name */
|
||||||
|
he = HashFind(calmaDefHash, strname);
|
||||||
|
if ((newnameptr = (char *)HashGetValue(he)) != NULL)
|
||||||
|
{
|
||||||
|
/* Structure is defined more than once */
|
||||||
|
TxError("Structure %s defined redundantly in GDS\n", strname);
|
||||||
|
}
|
||||||
|
else if (!strcmp(strname, def->cd_name))
|
||||||
|
{
|
||||||
|
/* This is the top level cell being defined. Its name */
|
||||||
|
/* does not get modified. */
|
||||||
|
|
||||||
|
newnameptr = mallocMagic(strlen(strname) + 1);
|
||||||
|
sprintf(newnameptr, "%s", strname);
|
||||||
|
calmaOutStringRecord(CALMA_STRNAME, newnameptr, outf);
|
||||||
|
HashSetValue(he, (char *)newnameptr);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
/* Modify the cellname by prefixing with the def name */
|
||||||
|
newnameptr = mallocMagic(strlen(strname) + strlen(def->cd_name) + 8);
|
||||||
|
sprintf(newnameptr, "%s_%s", def->cd_name, strname);
|
||||||
|
|
||||||
|
/* Check if the cell is defined in the database */
|
||||||
|
edef = DBCellLookDef(newnameptr);
|
||||||
|
if (edef != NULL)
|
||||||
|
// To do: Expand upon this, but it's probably overkill
|
||||||
|
sprintf(newnameptr, "%s_%s[[0]]", def->cd_name, strname);
|
||||||
|
calmaOutStringRecord(CALMA_STRNAME, newnameptr, outf);
|
||||||
|
HashSetValue(he, (char *)newnameptr);
|
||||||
|
}
|
||||||
|
freeMagic(strname);
|
||||||
|
|
||||||
|
/* Read and output the structure until CALMA_ENDSTR, except */
|
||||||
|
/* for handling any AREF or SREF names, which need name */
|
||||||
|
/* checks. */
|
||||||
|
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
int datatype;
|
||||||
|
|
||||||
|
READI2(nbytes);
|
||||||
|
if (feof(calmaInputFile))
|
||||||
|
{
|
||||||
|
/* Unexpected end-of-file */
|
||||||
|
fseek(calmaInputFile, -(CALMAHEADERLENGTH), SEEK_END);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
rtype = getc(calmaInputFile);
|
||||||
|
datatype = getc(calmaInputFile);
|
||||||
|
switch (rtype) {
|
||||||
|
case CALMA_BGNSTR:
|
||||||
|
UNREADRH(nbytes, rtype);
|
||||||
|
return (TRUE);
|
||||||
|
case CALMA_ENDLIB:
|
||||||
|
UNREADRH(nbytes, rtype);
|
||||||
|
return (FALSE);
|
||||||
|
|
||||||
|
case CALMA_SNAME:
|
||||||
|
UNREADRH(nbytes, rtype);
|
||||||
|
if (!calmaReadStringRecord(CALMA_SNAME, &strname))
|
||||||
|
goto syntaxerror;
|
||||||
|
|
||||||
|
he = HashFind(calmaDefHash, strname);
|
||||||
|
newnameptr = (char *)HashGetValue(he);
|
||||||
|
if (newnameptr != NULL)
|
||||||
|
{
|
||||||
|
calmaOutStringRecord(CALMA_SNAME, newnameptr, outf);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
TxError("Diagnostic: %s is a forward reference?\n", strname);
|
||||||
|
|
||||||
|
/* Could be a forward reference, so do a rename in */
|
||||||
|
/* the same way used for structure definitions. */
|
||||||
|
|
||||||
|
newnameptr = (char *)mallocMagic(strlen(strname) +
|
||||||
|
strlen(def->cd_name) + 8);
|
||||||
|
sprintf(newnameptr, "%s_%s", def->cd_name, strname);
|
||||||
|
|
||||||
|
edef = DBCellLookDef(newnameptr);
|
||||||
|
if (edef != NULL)
|
||||||
|
sprintf(newnameptr, "%s_%s[[0]]", def->cd_name, strname);
|
||||||
|
HashSetValue(he, (char *)newnameptr);
|
||||||
|
calmaOutStringRecord(CALMA_SNAME, newnameptr, outf);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
calmaOutRH(nbytes, rtype, datatype, outf);
|
||||||
|
nbytes -= 4;
|
||||||
|
|
||||||
|
/* Copy nbytes from input to output */
|
||||||
|
while (nbytes-- > 0)
|
||||||
|
{
|
||||||
|
int byte;
|
||||||
|
if ((byte = getc(calmaInputFile)) < 0)
|
||||||
|
{
|
||||||
|
TxError("End of file with %d bytes remaining to be read.\n",
|
||||||
|
nbytes);
|
||||||
|
while (nbytes-- > 0)
|
||||||
|
putc(0, outf); // zero-pad output
|
||||||
|
return (FALSE);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
putc(byte, outf);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return (FALSE);
|
||||||
|
|
||||||
|
syntaxerror:
|
||||||
|
/* Syntax error: skip to CALMA_ENDSTR */
|
||||||
|
calmaSkipTo(CALMA_ENDSTR);
|
||||||
|
return (FALSE);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* calmaFullDump --
|
||||||
|
*
|
||||||
|
* Read in a GDS-II stream format library and dump its contents to
|
||||||
|
* file "outf" verbatim except for cell references, which are renamed
|
||||||
|
* if there is a conflict with a cell def in memory.
|
||||||
|
*
|
||||||
|
* Because the dump is inside a larger output, the header and trailer
|
||||||
|
* are discarded.
|
||||||
|
*
|
||||||
|
* ----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
calmaFullDump(def, fi, cellstart, outf)
|
||||||
|
CellDef *def;
|
||||||
|
FILE *fi;
|
||||||
|
off_t cellstart;
|
||||||
|
FILE *outf;
|
||||||
|
{
|
||||||
|
int version;
|
||||||
|
char *libname = NULL;
|
||||||
|
HashTable calmaDefHash;
|
||||||
|
static int hdrSkip[] = { CALMA_FORMAT, CALMA_MASK, CALMA_ENDMASKS,
|
||||||
|
CALMA_REFLIBS, CALMA_FONTS, CALMA_ATTRTABLE,
|
||||||
|
CALMA_STYPTABLE, CALMA_GENERATIONS, CALMA_UNITS, -1 };
|
||||||
|
static int skipBeforeLib[] = { CALMA_LIBDIRSIZE, CALMA_SRFNAME,
|
||||||
|
CALMA_LIBSECUR, -1 };
|
||||||
|
|
||||||
|
HashInit(&calmaDefHash, 32, 0);
|
||||||
|
|
||||||
|
calmaInputFile = fi;
|
||||||
|
cifReadCellDef = def;
|
||||||
|
|
||||||
|
/* Read and ignore the GDS-II header */
|
||||||
|
|
||||||
|
if (!calmaReadI2Record(CALMA_HEADER, &version)) goto done;
|
||||||
|
if (!calmaSkipExact(CALMA_BGNLIB)) goto done;
|
||||||
|
calmaSkipSet(skipBeforeLib);
|
||||||
|
if (!calmaReadStringRecord(CALMA_LIBNAME, &libname)) goto done;
|
||||||
|
|
||||||
|
// NOTE: CALMA_UNITS needs to be parsed to determine if units in
|
||||||
|
// the input file are compatible with units being used in the output
|
||||||
|
// file.
|
||||||
|
calmaSkipSet(hdrSkip);
|
||||||
|
|
||||||
|
while (calmaDumpStructure(def, cellstart, outf, &calmaDefHash))
|
||||||
|
if (SigInterruptPending)
|
||||||
|
goto done;
|
||||||
|
calmaSkipExact(CALMA_ENDLIB);
|
||||||
|
|
||||||
|
done:
|
||||||
|
HashFreeKill(&calmaDefHash);
|
||||||
|
if (libname != NULL) freeMagic(libname);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* ----------------------------------------------------------------------------
|
* ----------------------------------------------------------------------------
|
||||||
*
|
*
|
||||||
|
|
@ -399,7 +621,7 @@ calmaProcessDef(def, outf)
|
||||||
FILE *outf; /* Stream file */
|
FILE *outf; /* Stream file */
|
||||||
{
|
{
|
||||||
char *filename;
|
char *filename;
|
||||||
bool isReadOnly, oldStyle, hasContent;
|
bool isReadOnly, oldStyle, hasContent, isAbstract;
|
||||||
|
|
||||||
/* Skip if already output */
|
/* Skip if already output */
|
||||||
if ((int) def->cd_client > 0)
|
if ((int) def->cd_client > 0)
|
||||||
|
|
@ -437,6 +659,7 @@ calmaProcessDef(def, outf)
|
||||||
* definition will appear in the output.
|
* definition will appear in the output.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
DBPropGet(def, "LEFview", &isAbstract);
|
||||||
DBPropGet(def, "GDS_START", &hasContent);
|
DBPropGet(def, "GDS_START", &hasContent);
|
||||||
filename = (char *)DBPropGet(def, "GDS_FILE", &isReadOnly);
|
filename = (char *)DBPropGet(def, "GDS_FILE", &isReadOnly);
|
||||||
|
|
||||||
|
|
@ -466,6 +689,20 @@ calmaProcessDef(def, outf)
|
||||||
else
|
else
|
||||||
def->cd_flags |= CDVENDORGDS;
|
def->cd_flags |= CDVENDORGDS;
|
||||||
}
|
}
|
||||||
|
else if (isAbstract)
|
||||||
|
{
|
||||||
|
/* This is the trickiest part. If the cell view is abstract then */
|
||||||
|
/* the cell view has no hierarchy, and there is no way to descend */
|
||||||
|
/* into the cell hierarchy and discover and write out all the */
|
||||||
|
/* dependencies. The dependencies are in the file but not in the */
|
||||||
|
/* range GDS_START to GDS_END. Furthermore, the dependencies have */
|
||||||
|
/* not been loaded so naming conflicts may exist. So the file must */
|
||||||
|
/* be read end-to-end and parsed carefully. */
|
||||||
|
|
||||||
|
calmaFullDump(def, fi, cellstart, outf);
|
||||||
|
fclose(fi);
|
||||||
|
def->cd_flags |= CDVENDORGDS;
|
||||||
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
offptr = (char *)DBPropGet(def, "GDS_END", NULL);
|
offptr = (char *)DBPropGet(def, "GDS_END", NULL);
|
||||||
|
|
@ -500,8 +737,8 @@ calmaProcessDef(def, outf)
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
defsize = (size_t)(cellend - cellstart);
|
defsize = (size_t)(cellend - cellstart);
|
||||||
|
|
||||||
buffer = (char *)mallocMagic(defsize);
|
buffer = (char *)mallocMagic(defsize);
|
||||||
|
|
||||||
numbytes = fread(buffer, sizeof(char), (size_t)defsize, fi);
|
numbytes = fread(buffer, sizeof(char), (size_t)defsize, fi);
|
||||||
if (numbytes == defsize)
|
if (numbytes == defsize)
|
||||||
{
|
{
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue