According to code Vesta was thought of to be able to parse several libraries. In fact it can parse several, but only the cells of the last one are used. Cells from previous libs are not seen.
Log:
Parsing library "gscl45nm"
End of library at line 6016
Lib read /usr/local/share/qflow/tech/gscl45nm/gscl45nm.lib: Processed 6017 lines.
Parsing library "sp_sram32x512_freepdk45_FF_1p0V_25C_lib"
End of library at line 342
Lib read /design/library/sp_sram32x512_freepdk45/sp_sram32x512_freepdk45_FF_1p0V_25C.lib: Processed 343 lines.
Parsing library "sp_sram32x64_freepdk45_FF_1p0V_25C_lib"
End of library at line 342
Cell "CLKBUF1" was not in the liberty database!
Most probably the problem is in vesta.c lines 3945 - 3956, where flib in for loop is just rewritten every time:
/*------------------------------------------------------------------*/
/* Read all liberty format files (everything on the command line */
/* after the verilog source file). */
/*------------------------------------------------------------------*/
for (i = 1; firstarg + i < objc; i++) {
flib = fopen(argv[firstarg + i], "r");
if (flib == NULL) {
fprintf(stderr, "Cannot open %s for reading\n", argv[firstarg + i]);
exit (1);
}
According to code Vesta was thought of to be able to parse several libraries. In fact it can parse several, but only the cells of the last one are used. Cells from previous libs are not seen.
Log:
Most probably the problem is in vesta.c lines 3945 - 3956, where flib in for loop is just rewritten every time: