diff options
| -rw-r--r-- | backends/ilang/ilang_backend.cc | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/backends/ilang/ilang_backend.cc b/backends/ilang/ilang_backend.cc index 924e316bc..c585d40c5 100644 --- a/backends/ilang/ilang_backend.cc +++ b/backends/ilang/ilang_backend.cc @@ -409,13 +409,16 @@ struct DumpPass : public Pass { log(" only dump the module headers if the entire module is selected\n"); log("\n"); log(" -outfile <filename>\n"); - log(" Write to the specified file.\n"); + log(" write to the specified file.\n"); + log("\n"); + log(" -append <filename>\n"); + log(" like -outfile but append instead of overwrite\n"); log("\n"); } virtual void execute(std::vector<std::string> args, RTLIL::Design *design) { std::string filename; - bool flag_m = false, flag_n = false; + bool flag_m = false, flag_n = false, append = false; size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) @@ -423,6 +426,12 @@ struct DumpPass : public Pass { std::string arg = args[argidx]; if (arg == "-outfile" && argidx+1 < args.size()) { filename = args[++argidx]; + append = false; + continue; + } + if (arg == "-append" && argidx+1 < args.size()) { + filename = args[++argidx]; + append = true; continue; } if (arg == "-m") { @@ -442,7 +451,7 @@ struct DumpPass : public Pass { size_t buf_size; if (!filename.empty()) { - f = fopen(filename.c_str(), "w"); + f = fopen(filename.c_str(), append ? "a" : "w"); if (f == NULL) log_error("Can't open file `%s' for writing: %s\n", filename.c_str(), strerror(errno)); } else { |