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For PR351: \

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* Remove IsLibrary and GetLibraryPath, replaced by FindLibrary in ../Path.cpp \
* Implement GetSystemLibraryPaths and GetBytecodeLibraryPaths, instead of the \
  GetSystemLibraryPath1 and GetSystemLibraryPath2 methods

llvm-svn: 18862
This commit is contained in:
Reid Spencer 2004-12-13 03:00:51 +00:00
parent 38992108f9
commit dac49a55a1
1 changed files with 53 additions and 66 deletions
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119
lib/System/Unix/Path.cpp
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@ -46,67 +46,61 @@ Path::GetRootDirectory() {
return result; return result;
} }
static inline bool IsLibrary(Path& path, const std::string& basename) { static void getPathList(const char*path, std::vector<sys::Path>& Paths) {
if (path.appendFile(std::string("lib") + basename)) { const char* at = path;
if (path.appendSuffix(Path::GetDLLSuffix()) && path.readable()) const char* delim = strchr(at, ':');
return true; Path tmpPath;
else if (path.elideSuffix() && path.appendSuffix("a") && path.readable()) while( delim != 0 ) {
return true; std::string tmp(at, size_t(delim-at));
else if (path.elideSuffix() && path.appendSuffix("o") && path.readable()) if (tmpPath.setDirectory(tmp))
return true; if (tmpPath.readable())
else if (path.elideSuffix() && path.appendSuffix("bc") && path.readable()) Paths.push_back(tmpPath);
return true; at = delim + 1;
} else if (path.elideFile() && path.appendFile(basename)) { delim = strchr(at, ':');
if (path.appendSuffix(Path::GetDLLSuffix()) && path.readable())
return true;
else if (path.elideSuffix() && path.appendSuffix("a") && path.readable())
return true;
else if (path.elideSuffix() && path.appendSuffix("o") && path.readable())
return true;
else if (path.elideSuffix() && path.appendSuffix("bc") && path.readable())
return true;
} }
path.clear(); if (*at != 0)
return false; if (tmpPath.setDirectory(std::string(at)))
if (tmpPath.readable())
Paths.push_back(tmpPath);
} }
void
Path Path::GetSystemLibraryPaths(std::vector<sys::Path>& Paths) {
Path::GetLibraryPath(const std::string& basename, #ifdef LTDL_SHLIBPATH_VAR
const std::vector<std::string>& LibPaths) { char* env_var = getenv(LTDL_SHLIBPATH_VAR);
Path result; if (env_var != 0) {
getPathList(env_var,Paths);
// Try the paths provided
for (std::vector<std::string>::const_iterator I = LibPaths.begin(),
E = LibPaths.end(); I != E; ++I ) {
if (result.setDirectory(*I) && IsLibrary(result,basename))
return result;
} }
#endif
// Try the LLVM lib directory in the LLVM install area // FIXME: Should this look at LD_LIBRARY_PATH too?
if (result.setDirectory(LLVM_LIBDIR) && IsLibrary(result,basename)) Paths.push_back(sys::Path("/usr/local/lib/"));
return result; Paths.push_back(sys::Path("/usr/X11R6/lib/"));
Paths.push_back(sys::Path("/usr/lib/"));
// Try /usr/lib Paths.push_back(sys::Path("/lib/"));
if (result.setDirectory("/usr/lib/") && IsLibrary(result,basename))
return result;
// Try /lib
if (result.setDirectory("/lib/") && IsLibrary(result,basename))
return result;
// Can't find it, give up and return invalid path.
result.clear();
return result;
} }
Path void
Path::GetSystemLibraryPath1() { Path::GetBytecodeLibraryPaths(std::vector<sys::Path>& Paths) {
return Path("/lib/"); char * env_var = getenv("LLVM_LIB_SEARCH_PATH");
} if (env_var != 0) {
getPathList(env_var,Paths);
Path }
Path::GetSystemLibraryPath2() { #ifdef LLVMGCCDIR
return Path("/usr/lib/"); {
Path tmpPath(std::string(LLVMGCCDIR) + "bytecode-libs/");
if (tmpPath.readable())
Paths.push_back(tmpPath);
}
#endif
#ifdef LLVM_LIBDIR
{
Path tmpPath;
if (tmpPath.setDirectory(LLVM_LIBDIR))
if (tmpPath.readable())
Paths.push_back(tmpPath);
}
#endif
GetSystemLibraryPaths(Paths);
} }
Path Path
@ -162,9 +156,10 @@ bool Path::hasMagicNumber(const std::string &Magic) const {
int fd = ::open(path.c_str(),O_RDONLY); int fd = ::open(path.c_str(),O_RDONLY);
if (fd < 0) if (fd < 0)
return false; return false;
if (0 != ::read(fd, buf, len)) size_t read_len = ::read(fd, buf, len);
return false;
close(fd); close(fd);
if (len != read_len)
return false;
buf[len] = '\0'; buf[len] = '\0';
return Magic == buf; return Magic == buf;
} }
@ -203,14 +198,6 @@ Path::isBytecodeFile() const {
(buffer[3] == 'c' || buffer[3] == 'm')); (buffer[3] == 'c' || buffer[3] == 'm'));
} }
bool
Path::isArchive() const {
if (readable()) {
return hasMagicNumber("!<arch>\012");
}
return false;
}
bool bool
Path::exists() const { Path::exists() const {
return 0 == access(path.c_str(), F_OK ); return 0 == access(path.c_str(), F_OK );