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Diffstat (limited to 'linkers/rld-cc.cpp')
| -rw-r--r-- | linkers/rld-cc.cpp | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/linkers/rld-cc.cpp b/linkers/rld-cc.cpp new file mode 100644 index 0000000..38d3093 --- /dev/null +++ b/linkers/rld-cc.cpp @@ -0,0 +1,192 @@ +/* + * Copyright (c) 2011-2012, Chris Johns <chrisj@rtems.org> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <string.h> + +#include <fstream> + +#include <rld.h> +#include <rld-cc.h> +#include <rld-process.h> + +namespace rld +{ + namespace cc + { + std::string cc; + std::string exec_prefix; + std::string march; + std::string mcpu; + std::string install_path; + std::string programs_path; + std::string libraries_path; + + /** + * The list of standard libraries. + */ + #define RPS RLD_PATHSTR_SEPARATOR_STR + static const char* std_lib_c = "libgcc.a" RPS "libssp.a" RPS "libc.a"; + static const char* std_lib_cplusplus = "libstdc++.a"; + + static void + make_cc_command (rld::process::arg_container& args) + { + /* + * Use the absolute path to CC is provided. + */ + if (!cc.empty ()) + args.push_back (cc); + else + { + std::string cmd = "gcc"; + if (!exec_prefix.empty ()) + cmd = exec_prefix + "-rtems" + rld::rtems_version () + '-' + cmd; + args.push_back (cmd); + } + if (!march.empty ()) + args.push_back ("-march=" + march); + if (!mcpu.empty ()) + args.push_back ("-mcpu=" + mcpu); + } + + static bool + match_and_trim (const char* prefix, std::string& line, std::string& result) + { + std::string::size_type pos = ::strlen (prefix); + if (line.substr (0, pos) == prefix) + { + if (line[pos] == '=') + ++pos; + result = line.substr (pos, line.size () - pos - 1); + return true; + } + return false; + } + + static void + search_dirs () + { + rld::process::arg_container args; + + make_cc_command (args); + args.push_back ("-print-search-dirs"); + + rld::process::tempfile out; + rld::process::tempfile err; + rld::process::status status; + + status = rld::process::execute ("gcc", args, out.name (), err.name ()); + + if ((status.type == rld::process::status::normal) && + (status.code == 0)) + { + if (rld::verbose () >= RLD_VERBOSE_DETAILS) + out.output ("gcc", std::cout, true); + out.open (); + while (true) + { + std::string line; + out.read_line (line); + if (line.size () == 0) + break; + if (match_and_trim ("install: ", line, install_path)) + continue; + if (match_and_trim ("programs: ", line, programs_path)) + continue; + if (match_and_trim ("libraries: ", line, libraries_path)) + continue; + } + out.close (); + if (rld::verbose () >= RLD_VERBOSE_DETAILS) + { + std::cout << "cc::install: " << install_path << std::endl + << "cc::programs: " << programs_path << std::endl + << "cc::libraries: " << libraries_path << std::endl; + } + } + else + { + err.output ("gcc", std::cout); + } + } + + void + get_library_path (std::string& name, std::string& path) + { + rld::process::arg_container args; + + make_cc_command (args); + args.push_back ("-print-file-name=" + name); + + rld::process::tempfile out; + rld::process::tempfile err; + rld::process::status status; + + status = rld::process::execute ("gcc", args, out.name (), err.name ()); + + if ((status.type == rld::process::status::normal) && + (status.code == 0)) + { + if (rld::verbose () >= RLD_VERBOSE_DETAILS) + out.output ("cc", std::cout, true); + out.open (); + out.read (path); + out.close (); + if (rld::verbose () >= RLD_VERBOSE_DETAILS) + std::cout << "cc::libpath: " << name << " -> " << path << std::endl; + } + else + { + err.output ("cc", std::cout); + } + } + + void + get_standard_libpaths (rld::files::paths& libpaths) + { + search_dirs (); + rld::split (libraries_path, libpaths, RLD_PATHSTR_SEPARATOR); + } + + void + get_standard_libs (rld::files::paths& libs, + rld::files::paths& libpaths, + bool cplusplus) + { + strings libnames; + + rld::split (std_lib_c, libnames, RLD_PATHSTR_SEPARATOR); + if (cplusplus) + rld::files::path_split (std_lib_cplusplus, libnames); + + for (strings::iterator lni = libnames.begin (); + lni != libnames.end (); + ++lni) + { + if (rld::verbose () >= RLD_VERBOSE_INFO) + std::cout << "cc::stdlib: " << *lni << std::endl; + + std::string path; + + rld::files::find_file (path, *lni, libpaths); + if (path.empty ()) + throw rld::error ("Library not found: " + *lni, "getting standard libs"); + + libs.push_back (path); + } + } + } +} |