diff options
Diffstat (limited to 'frontends/verilog/verilog_frontend.cc')
| -rw-r--r-- | frontends/verilog/verilog_frontend.cc | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/frontends/verilog/verilog_frontend.cc b/frontends/verilog/verilog_frontend.cc index f9731cbc2..d14783c58 100644 --- a/frontends/verilog/verilog_frontend.cc +++ b/frontends/verilog/verilog_frontend.cc @@ -92,6 +92,10 @@ struct VerilogFrontend : public Frontend { log(" -lib\n"); log(" only create empty placeholder modules\n"); log("\n"); + log(" -Dname[=definition]\n"); + log(" define the preprocessor symbol 'name' and set its optional value\n"); + log(" 'definition'\n"); + log("\n"); } virtual void execute(FILE *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) { @@ -104,6 +108,7 @@ struct VerilogFrontend : public Frontend { bool flag_ppdump = false; bool flag_nopp = false; bool flag_lib = false; + std::map<std::string, std::string> defines_map; frontend_verilog_yydebug = false; log_header("Executing Verilog-2005 frontend.\n"); @@ -152,6 +157,16 @@ struct VerilogFrontend : public Frontend { flag_lib = true; continue; } + if (arg.compare(0,2,"-D") == 0) { + size_t equal = arg.find('=',2); // returns string::npos it not found + std::string name = arg.substr(2,equal-2); + std::string value; + if (equal != std::string::npos) { + value = arg.substr(equal+1,std::string::npos); + } + defines_map[name] = value; + continue; + } break; } extra_args(f, filename, args, argidx); @@ -168,7 +183,7 @@ struct VerilogFrontend : public Frontend { std::string code_after_preproc; if (!flag_nopp) { - code_after_preproc = frontend_verilog_preproc(f, filename); + code_after_preproc = frontend_verilog_preproc(f, filename, defines_map); if (flag_ppdump) log("-- Verilog code after preprocessor --\n%s-- END OF DUMP --\n", code_after_preproc.c_str()); fp = fmemopen((void*)code_after_preproc.c_str(), code_after_preproc.size(), "r"); |