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-rw-r--r--clang/lib/Driver/ToolChains/Gnu.cpp235
1 files changed, 136 insertions, 99 deletions
diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index d7cc101a60f..367dc190006 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -1450,6 +1450,8 @@ static bool findBiarchMultilibs(const Driver &D,
StringRef Path, const ArgList &Args,
bool NeedsBiarchSuffix,
DetectedMultilibs &Result) {
+ Multilib Default;
+
// Some versions of SUSE and Fedora on ppc64 put 32-bit libs
// in what would normally be GCCInstallPath and put the 64-bit
// libs in a subdirectory named 64. The simple logic we follow is that
@@ -1457,10 +1459,26 @@ static bool findBiarchMultilibs(const Driver &D,
// we use that. If not, and if not a biarch triple alias, we look for
// crtbegin.o without the subdirectory.
- Multilib Default;
+ StringRef Suff64 = "/64";
+ // Solaris uses platform-specific suffixes instead of /64.
+ if (TargetTriple.getOS() == llvm::Triple::Solaris) {
+ switch (TargetTriple.getArch()) {
+ case llvm::Triple::x86:
+ case llvm::Triple::x86_64:
+ Suff64 = "/amd64";
+ break;
+ case llvm::Triple::sparc:
+ case llvm::Triple::sparcv9:
+ Suff64 = "/sparcv9";
+ break;
+ default:
+ break;
+ }
+ }
+
Multilib Alt64 = Multilib()
- .gccSuffix("/64")
- .includeSuffix("/64")
+ .gccSuffix(Suff64)
+ .includeSuffix(Suff64)
.flag("-m32")
.flag("+m64")
.flag("-mx32");
@@ -1657,21 +1675,17 @@ void Generic_GCC::GCCInstallationDetector::init(
// If we have a SysRoot, try that first.
if (!D.SysRoot.empty()) {
Prefixes.push_back(D.SysRoot);
- Prefixes.push_back(D.SysRoot + "/usr");
+ AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
}
// Then look for gcc installed alongside clang.
Prefixes.push_back(D.InstalledDir + "/..");
- // Then look for distribution supplied gcc installations.
+ // Next, look for prefix(es) that correspond to distribution-supplied gcc
+ // installations.
if (D.SysRoot.empty()) {
- // Look for RHEL devtoolsets.
- Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
- Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
- Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
- Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
- // And finally in /usr.
- Prefixes.push_back("/usr");
+ // Typically /usr.
+ AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
}
}
@@ -1742,6 +1756,51 @@ bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
return false;
}
+void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
+ const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
+ StringRef SysRoot) {
+ if (TargetTriple.getOS() == llvm::Triple::Solaris) {
+ // Solaris is a special case.
+ // The GCC installation is under
+ // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
+ // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
+ // /usr/gcc/<version> as a prefix.
+
+ std::string PrefixDir = SysRoot.str() + "/usr/gcc";
+ std::error_code EC;
+ for (vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC), LE;
+ !EC && LI != LE; LI = LI.increment(EC)) {
+ StringRef VersionText = llvm::sys::path::filename(LI->getName());
+ GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
+
+ // Filter out obviously bad entries.
+ if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
+ continue;
+
+ std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
+ std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
+ if (!D.getVFS().exists(CandidateLibPath))
+ continue;
+
+ Prefixes.push_back(CandidatePrefix);
+ }
+ return;
+ }
+
+ // Non-Solaris is much simpler - most systems just go with "/usr".
+ if (SysRoot.empty()) {
+ // Yet, still look for RHEL devtoolsets
+ // (should it be done Linux-only??)
+ Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
+ Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
+ Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
+ Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
+ Prefixes.push_back("/usr");
+ } else {
+ Prefixes.push_back(SysRoot.str() + "/usr");
+ }
+}
+
/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
SmallVectorImpl<StringRef> &LibDirs,
@@ -1843,17 +1902,49 @@ bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
"s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
"s390x-suse-linux", "s390x-redhat-linux"};
- // Solaris.
- static const char *const SolarisSPARCLibDirs[] = {"/gcc"};
- static const char *const SolarisSPARCTriples[] = {"sparc-sun-solaris2.11",
- "i386-pc-solaris2.11"};
using std::begin;
using std::end;
if (TargetTriple.getOS() == llvm::Triple::Solaris) {
- LibDirs.append(begin(SolarisSPARCLibDirs), end(SolarisSPARCLibDirs));
- TripleAliases.append(begin(SolarisSPARCTriples), end(SolarisSPARCTriples));
+ static const char *const SolarisLibDirs[] = {"/lib"};
+ static const char *const SolarisSparcV8Triples[] = {
+ "sparc-sun-solaris2.11", "sparc-sun-solaris2.12"};
+ static const char *const SolarisSparcV9Triples[] = {
+ "sparcv9-sun-solaris2.11", "sparcv9-sun-solaris2.12"};
+ static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11",
+ "i386-pc-solaris2.12"};
+ static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11",
+ "x86_64-pc-solaris2.12"};
+ LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
+ BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
+ switch (TargetTriple.getArch()) {
+ case llvm::Triple::x86:
+ TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
+ BiarchTripleAliases.append(begin(SolarisX86_64Triples),
+ end(SolarisX86_64Triples));
+ break;
+ case llvm::Triple::x86_64:
+ TripleAliases.append(begin(SolarisX86_64Triples),
+ end(SolarisX86_64Triples));
+ BiarchTripleAliases.append(begin(SolarisX86Triples),
+ end(SolarisX86Triples));
+ break;
+ case llvm::Triple::sparc:
+ TripleAliases.append(begin(SolarisSparcV8Triples),
+ end(SolarisSparcV8Triples));
+ BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
+ end(SolarisSparcV9Triples));
+ break;
+ case llvm::Triple::sparcv9:
+ TripleAliases.append(begin(SolarisSparcV9Triples),
+ end(SolarisSparcV9Triples));
+ BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
+ end(SolarisSparcV8Triples));
+ break;
+ default:
+ break;
+ }
return;
}
@@ -2014,56 +2105,6 @@ bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
BiarchTripleAliases.push_back(BiarchTriple.str());
}
-void Generic_GCC::GCCInstallationDetector::scanLibDirForGCCTripleSolaris(
- const llvm::Triple &TargetArch, const llvm::opt::ArgList &Args,
- const std::string &LibDir, StringRef CandidateTriple,
- bool NeedsBiarchSuffix) {
- // Solaris is a special case. The GCC installation is under
- // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/, so we
- // need to iterate twice.
- std::error_code EC;
- for (vfs::directory_iterator LI = D.getVFS().dir_begin(LibDir, EC), LE;
- !EC && LI != LE; LI = LI.increment(EC)) {
- StringRef VersionText = llvm::sys::path::filename(LI->getName());
- GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
-
- if (CandidateVersion.Major != -1) // Filter obviously bad entries.
- if (!CandidateGCCInstallPaths.insert(LI->getName()).second)
- continue; // Saw this path before; no need to look at it again.
- if (CandidateVersion.isOlderThan(4, 1, 1))
- continue;
- if (CandidateVersion <= Version)
- continue;
-
- GCCInstallPath =
- LibDir + "/" + VersionText.str() + "/lib/gcc/" + CandidateTriple.str();
- if (!D.getVFS().exists(GCCInstallPath))
- continue;
-
- // If we make it here there has to be at least one GCC version, let's just
- // use the latest one.
- std::error_code EEC;
- for (vfs::directory_iterator
- LLI = D.getVFS().dir_begin(GCCInstallPath, EEC),
- LLE;
- !EEC && LLI != LLE; LLI = LLI.increment(EEC)) {
-
- StringRef SubVersionText = llvm::sys::path::filename(LLI->getName());
- GCCVersion CandidateSubVersion = GCCVersion::Parse(SubVersionText);
-
- if (CandidateSubVersion > Version)
- Version = CandidateSubVersion;
- }
-
- GCCTriple.setTriple(CandidateTriple);
-
- GCCInstallPath += "/" + Version.Text;
- GCCParentLibPath = GCCInstallPath + "/../../../../";
-
- IsValid = true;
- }
-}
-
bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
const llvm::Triple &TargetTriple, const ArgList &Args,
StringRef Path, bool NeedsBiarchSuffix) {
@@ -2097,12 +2138,6 @@ void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
const llvm::Triple &TargetTriple, const ArgList &Args,
const std::string &LibDir, StringRef CandidateTriple,
bool NeedsBiarchSuffix) {
- if (TargetTriple.getOS() == llvm::Triple::Solaris) {
- scanLibDirForGCCTripleSolaris(TargetTriple, Args, LibDir, CandidateTriple,
- NeedsBiarchSuffix);
- return;
- }
-
llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
// Locations relative to the system lib directory where GCC's triple-specific
// directories might reside.
@@ -2115,31 +2150,33 @@ void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
// Whether this library suffix is relevant for the triple.
bool Active;
} Suffixes[] = {
- // This is the normal place.
- {"gcc/" + CandidateTriple.str(), "../..", true},
-
- // Debian puts cross-compilers in gcc-cross.
- {"gcc-cross/" + CandidateTriple.str(), "../..", true},
-
- // The Freescale PPC SDK has the gcc libraries in
- // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
- // this on Freescale triples, though, since some systems put a *lot* of
- // files in that location, not just GCC installation data.
- {CandidateTriple.str(), "..",
- TargetTriple.getVendor() == llvm::Triple::Freescale},
-
- // Natively multiarch systems sometimes put the GCC triple-specific
- // directory within their multiarch lib directory, resulting in the
- // triple appearing twice.
- {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..", true},
-
- // Deal with cases (on Ubuntu) where the system architecture could be i386
- // but the GCC target architecture could be (say) i686.
- // FIXME: It may be worthwhile to generalize this and look for a second
- // triple.
- {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..",
- TargetArch == llvm::Triple::x86}
- };
+ // This is the normal place.
+ {"gcc/" + CandidateTriple.str(), "../..", true},
+
+ // Debian puts cross-compilers in gcc-cross.
+ {"gcc-cross/" + CandidateTriple.str(), "../..",
+ TargetTriple.getOS() != llvm::Triple::Solaris},
+
+ // The Freescale PPC SDK has the gcc libraries in
+ // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
+ // this on Freescale triples, though, since some systems put a *lot* of
+ // files in that location, not just GCC installation data.
+ {CandidateTriple.str(), "..",
+ TargetTriple.getVendor() == llvm::Triple::Freescale},
+
+ // Natively multiarch systems sometimes put the GCC triple-specific
+ // directory within their multiarch lib directory, resulting in the
+ // triple appearing twice.
+ {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..",
+ TargetTriple.getOS() != llvm::Triple::Solaris},
+
+ // Deal with cases (on Ubuntu) where the system architecture could be i386
+ // but the GCC target architecture could be (say) i686.
+ // FIXME: It may be worthwhile to generalize this and look for a second
+ // triple.
+ {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..",
+ (TargetArch == llvm::Triple::x86 &&
+ TargetTriple.getOS() != llvm::Triple::Solaris)}};
for (auto &Suffix : Suffixes) {
if (!Suffix.Active)
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