diff options
Diffstat (limited to 'frontends/blif')
| -rw-r--r-- | frontends/blif/blifparse.cc | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/frontends/blif/blifparse.cc b/frontends/blif/blifparse.cc index 19844bda6..ebbe082a2 100644 --- a/frontends/blif/blifparse.cc +++ b/frontends/blif/blifparse.cc @@ -21,6 +21,8 @@ YOSYS_NAMESPACE_BEGIN +const int lut_input_plane_limit = 12; + static bool read_next_line(char *&buffer, size_t &buffer_size, int &line_count, std::istream &f) { string strbuf; @@ -166,7 +168,10 @@ void parse_blif(RTLIL::Design *design, std::istream &f, IdString dff_name, bool goto error; module = new RTLIL::Module; lastcell = nullptr; - module->name = RTLIL::escape_id(strtok(NULL, " \t\r\n")); + char *name = strtok(NULL, " \t\r\n"); + if (name == nullptr) + goto error; + module->name = RTLIL::escape_id(name); obj_attributes = &module->attributes; obj_parameters = nullptr; if (design->module(module->name)) @@ -510,6 +515,11 @@ void parse_blif(RTLIL::Design *design, std::istream &f, IdString dff_name, bool sopmode = -1; lastcell = sopcell; } + else if (input_sig.size() > lut_input_plane_limit) + { + err_reason = stringf("names' input plane must have fewer than %d signals.", lut_input_plane_limit + 1); + goto error_with_reason; + } else { RTLIL::Cell *cell = module->addCell(NEW_ID, ID($lut)); @@ -573,7 +583,7 @@ void parse_blif(RTLIL::Design *design, std::istream &f, IdString dff_name, bool if (lutptr) { - if (input_len > 12) + if (input_len > lut_input_plane_limit) goto error; for (int i = 0; i < (1 << input_len); i++) { |