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internal/rosa: patch library paths
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Browse Source 
This removes the need for reference LDFLAGS in the standard toolchain.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra
2026-01-23 02:41:35 +09:00
parent 5c127a7035
commit f6eaf76ec9
7 changed files with 110 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
internal/rosa/llvm.go
View File

@@ -140,8 +140,10 @@ func (t Toolchain) newLLVM(variant string, attr *llvmAttr) pkg.Artifact {
if attr.flags&llvmProjectClang != 0 {
cache = append(cache,
[2]string{"CLANG_DEFAULT_LINKER", "lld"},
[2]string{"CLANG_DEFAULT_CXX_STDLIB", "libc++"},
[2]string{"CLANG_DEFAULT_RTLIB", "compiler-rt"},
[2]string{"CLANG_DEFAULT_UNWINDLIB", "libunwind"},
)
}
if attr.flags&llvmProjectLld != 0 {
@@ -237,10 +239,15 @@ func (t Toolchain) NewLLVM() (musl, compilerRT, runtimes, clang pkg.Artifact) {
{"LLVM_ENABLE_LIBXML2", "OFF"},
}
var env []string
if t == toolchainStage3 {
env = []string{
"LDFLAGS=" + earlyLDFLAGS(false),
}
}
compilerRT = t.newLLVM("compiler-rt", &llvmAttr{
env: []string{
ldflags(false),
},
env: env,
cmake: [][2]string{
// libc++ not yet available
{"CMAKE_CXX_COMPILER_TARGET", ""},
@@ -281,20 +288,17 @@ ln -s \
musl = t.NewMusl(&MuslAttr{
Extra: []pkg.Artifact{compilerRT},
Env: []string{
ldflags(false),
Env: slices.Concat(env, []string{
"CC=clang",
"LIBCC=/system/lib/clang/21/lib/" +
triplet() + "/libclang_rt.builtins.a",
"AR=ar",
"RANLIB=ranlib",
},
}),
})
runtimes = t.newLLVM("runtimes", &llvmAttr{
env: []string{
ldflags(false),
},
env: env,
flags: llvmRuntimeLibunwind | llvmRuntimeLibcxx | llvmRuntimeLibcxxABI,
cmake: slices.Concat([][2]string{
// libc++ not yet available
@@ -320,9 +324,7 @@ ln -s \
clang = t.newLLVM("clang", &llvmAttr{
flags: llvmProjectClang | llvmProjectLld,
env: slices.Concat(clangExtraEnv, []string{
ldflags(false),
}),
env: slices.Concat(clangExtraEnv, env),
cmake: slices.Concat([][2]string{
{"LLVM_TARGETS_TO_BUILD", target},
{"CMAKE_CROSSCOMPILING", "OFF"},
@@ -342,17 +344,7 @@ ninja check-all
`,
patches: [][2]string{
{"xfail-broken-tests", `diff --git a/clang/test/Driver/hexagon-toolchain-linux.c b/clang/test/Driver/hexagon-toolchain-linux.c
index e791353cca07..4efaf3948054 100644
--- a/clang/test/Driver/hexagon-toolchain-linux.c
+++ b/clang/test/Driver/hexagon-toolchain-linux.c
@@ -1,3 +1,5 @@
+// XFAIL: target={{.*-rosa-linux-musl}}
+
// UNSUPPORTED: system-windows
// -----------------------------------------------------------------------------
diff --git a/clang/test/Modules/timestamps.c b/clang/test/Modules/timestamps.c
{"xfail-broken-tests", `diff --git a/clang/test/Modules/timestamps.c b/clang/test/Modules/timestamps.c
index 50fdce630255..4b4465a75617 100644
--- a/clang/test/Modules/timestamps.c
+++ b/clang/test/Modules/timestamps.c
@@ -389,6 +381,86 @@ index cdbf21fb9026..dd052858700d 100644
if (!DriverArgs.hasArg(options::OPT_nobuiltininc) && getTriple().isMusl())
addSystemInclude(DriverArgs, CC1Args, ResourceDirInclude);
`},
{"path-system-libraries", `diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 8d3775de9be5..1e126e2d6f24 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -463,6 +463,15 @@ void tools::AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs,
if (!TC.isCrossCompiling())
addDirectoryList(Args, CmdArgs, "-L", "LIBRARY_PATH");
+ const std::string RosaSuffix = "-rosa-linux-musl";
+ if (TC.getTripleString().size() > RosaSuffix.size() &&
+ std::equal(RosaSuffix.rbegin(), RosaSuffix.rend(), TC.getTripleString().rbegin())) {
+ CmdArgs.push_back("-rpath");
+ CmdArgs.push_back("/system/lib");
+ CmdArgs.push_back("-rpath");
+ CmdArgs.push_back(("/system/lib/" + TC.getTripleString()).c_str());
+ }
+
for (const auto &II : Inputs) {
// If the current tool chain refers to an OpenMP offloading host, we
// should ignore inputs that refer to OpenMP offloading devices -
diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
index 8ac8d4eb9181..795995bb53cb 100644
--- a/clang/lib/Driver/ToolChains/Linux.cpp
+++ b/clang/lib/Driver/ToolChains/Linux.cpp
@@ -324,6 +324,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
Generic_GCC::AddMultilibPaths(D, SysRoot, "libo32", MultiarchTriple, Paths);
addPathIfExists(D, concat(SysRoot, "/libo32"), Paths);
addPathIfExists(D, concat(SysRoot, "/usr/libo32"), Paths);
+ addPathIfExists(D, concat(SysRoot, "/system/libo32"), Paths);
}
Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths);
@@ -343,16 +344,20 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
addPathIfExists(D, concat(SysRoot, "/usr/lib", MultiarchTriple), Paths);
addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir), Paths);
+ addPathIfExists(D, concat(SysRoot, "/system/lib", MultiarchTriple), Paths);
+ addPathIfExists(D, concat(SysRoot, "/system", OSLibDir), Paths);
if (IsRISCV) {
StringRef ABIName = tools::riscv::getRISCVABI(Args, Triple);
addPathIfExists(D, concat(SysRoot, "/", OSLibDir, ABIName), Paths);
addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir, ABIName), Paths);
+ addPathIfExists(D, concat(SysRoot, "/system", OSLibDir, ABIName), Paths);
}
Generic_GCC::AddMultiarchPaths(D, SysRoot, OSLibDir, Paths);
addPathIfExists(D, concat(SysRoot, "/lib"), Paths);
addPathIfExists(D, concat(SysRoot, "/usr/lib"), Paths);
+ addPathIfExists(D, concat(SysRoot, "/system/lib"), Paths);
}
ToolChain::RuntimeLibType Linux::GetDefaultRuntimeLibType() const {
@@ -457,6 +462,11 @@ std::string Linux::getDynamicLinker(const ArgList &Args) const {
return Triple.isArch64Bit() ? "/system/bin/linker64" : "/system/bin/linker";
}
if (Triple.isMusl()) {
+ const std::string RosaSuffix = "-rosa-linux-musl";
+ if (Triple.str().size() > RosaSuffix.size() &&
+ std::equal(RosaSuffix.rbegin(), RosaSuffix.rend(), Triple.str().rbegin()))
+ return "/system/bin/linker";
+
std::string ArchName;
bool IsArm = false;
diff --git a/clang/tools/clang-installapi/Options.cpp b/clang/tools/clang-installapi/Options.cpp
index 64324a3f8b01..15ce70b68217 100644
--- a/clang/tools/clang-installapi/Options.cpp
+++ b/clang/tools/clang-installapi/Options.cpp
@@ -515,7 +515,7 @@ bool Options::processFrontendOptions(InputArgList &Args) {
FEOpts.FwkPaths = std::move(FrameworkPaths);
// Add default framework/library paths.
- PathSeq DefaultLibraryPaths = {"/usr/lib", "/usr/local/lib"};
+ PathSeq DefaultLibraryPaths = {"/usr/lib", "/system/lib", "/usr/local/lib"};
PathSeq DefaultFrameworkPaths = {"/Library/Frameworks",
"/System/Library/Frameworks"};
`},
},
})