internal/rosa/llvm: use llvm build system

This removes the multistep bootstrap hack. Stage0 exceptions are also eliminated for a later change to bring the stage0 distribution down to just a bare toolchain, toybox and shell. This change also enables dynamic linking and ThinLTO.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 0 insertions, 191 deletions

diff --git a/internal/rosa/llvm_patches_latest.go b/internal/rosa/llvm_patches_latest.go
deleted file mode 100644
index f1060b9f..00000000
--- a/internal/rosa/llvm_patches_latest.go
+++ /dev/null
@@ -1,191 +0,0 @@
-package rosa
-
-// llvmPatches are centralised patches against latest LLVM monorepo.
-var llvmPatches = []KV{
-	{"increase-stack-size-unconditional", `diff --git a/llvm/lib/Support/Threading.cpp b/llvm/lib/Support/Threading.cpp
-index 9da357a7ebb9..b2931510c1ae 100644
---- a/llvm/lib/Support/Threading.cpp
-+++ b/llvm/lib/Support/Threading.cpp
-@@ -80,7 +80,7 @@ unsigned llvm::ThreadPoolStrategy::compute_thread_count() const {
- // keyword.
- #include "llvm/Support/thread.h"
- 
--#if defined(__APPLE__)
-+#if defined(__APPLE__) || 1
-   // Darwin's default stack size for threads except the main one is only 512KB,
-   // which is not enough for some/many normal LLVM compilations. This implements
-   // the same interface as std::thread but requests the same stack size as the
-`},
-
-	{"add-rosa-vendor", `diff --git a/llvm/include/llvm/TargetParser/Triple.h b/llvm/include/llvm/TargetParser/Triple.h
-index 9c83abeeb3b1..5acfe5836a23 100644
---- a/llvm/include/llvm/TargetParser/Triple.h
-+++ b/llvm/include/llvm/TargetParser/Triple.h
-@@ -190,6 +190,7 @@ public:
- 
-     Apple,
-     PC,
-+    Rosa,
-     SCEI,
-     Freescale,
-     IBM,
-diff --git a/llvm/lib/TargetParser/Triple.cpp b/llvm/lib/TargetParser/Triple.cpp
-index a4f9dd42c0fe..cb5a12387034 100644
---- a/llvm/lib/TargetParser/Triple.cpp
-+++ b/llvm/lib/TargetParser/Triple.cpp
-@@ -279,6 +279,7 @@ StringRef Triple::getVendorTypeName(VendorType Kind) {
-   case NVIDIA: return "nvidia";
-   case OpenEmbedded: return "oe";
-   case PC: return "pc";
-+  case Rosa: return "rosa";
-   case SCEI: return "scei";
-   case SUSE: return "suse";
-   case Meta:
-@@ -689,6 +690,7 @@ static Triple::VendorType parseVendor(StringRef VendorName) {
-   return StringSwitch<Triple::VendorType>(VendorName)
-       .Case("apple", Triple::Apple)
-       .Case("pc", Triple::PC)
-+      .Case("rosa", Triple::Rosa)
-       .Case("scei", Triple::SCEI)
-       .Case("sie", Triple::SCEI)
-       .Case("fsl", Triple::Freescale)
-`},
-
-	{"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
-@@ -1,3 +1,5 @@
-+// XFAIL: target={{.*-rosa-linux-musl}}
-+
- /// Verify timestamps that gets embedded in the module
- #include <c-header.h>
- 
-`},
-
-	{"path-system-include", `diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
-index 8ac8d4eb9181..e46b04a898ca 100644
---- a/clang/lib/Driver/ToolChains/Linux.cpp
-+++ b/clang/lib/Driver/ToolChains/Linux.cpp
-@@ -671,6 +671,12 @@ void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
-     addExternCSystemInclude(
-         DriverArgs, CC1Args,
-         concat(SysRoot, "/usr/include", MultiarchIncludeDir));
-+  if (!MultiarchIncludeDir.empty() &&
-+      D.getVFS().exists(concat(SysRoot, "/system/include", MultiarchIncludeDir)))
-+    addExternCSystemInclude(
-+        DriverArgs, CC1Args,
-+        concat(SysRoot, "/system/include", MultiarchIncludeDir));
-+
- 
-   if (getTriple().getOS() == llvm::Triple::RTEMS)
-     return;
-@@ -681,6 +687,7 @@ void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
-   addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/include"));
- 
-   addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/usr/include"));
-+  addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/system/include"));
- 
-   if (!DriverArgs.hasArg(options::OPT_nobuiltininc) && getTriple().isMusl())
-     addSystemInclude(DriverArgs, CC1Args, ResourceDirInclude);
-`},
-
-	{"path-system-libraries", `diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
-index d525b417b4ea..fdc411f2239c 100644
---- a/clang/lib/Driver/ToolChains/Linux.cpp
-+++ b/clang/lib/Driver/ToolChains/Linux.cpp
-@@ -302,6 +302,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
-   const bool IsHexagon = Arch == llvm::Triple::hexagon;
-   const bool IsRISCV = Triple.isRISCV();
-   const bool IsCSKY = Triple.isCSKY();
-+  const bool IsRosa = Triple.getVendor() == llvm::Triple::Rosa;
- 
-   if (IsCSKY && !SelectedMultilibs.empty())
-     SysRoot = SysRoot + SelectedMultilibs.back().osSuffix();
-@@ -337,12 +338,23 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
-   const std::string OSLibDir = std::string(getOSLibDir(Triple, Args));
-   const std::string MultiarchTriple = getMultiarchTriple(D, Triple, SysRoot);
- 
-+  if (IsRosa) {
-+    ExtraOpts.push_back("-rpath");
-+    ExtraOpts.push_back("/system/lib");
-+    ExtraOpts.push_back("-rpath");
-+    ExtraOpts.push_back(concat("/system/lib", Triple.str()));
-+  }
-+
-   // mips32: Debian multilib, we use /libo32, while in other case, /lib is
-   // used. We need add both libo32 and /lib.
-   if (Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel) {
-     Generic_GCC::AddMultilibPaths(D, SysRoot, "libo32", MultiarchTriple, Paths);
--    addPathIfExists(D, concat(SysRoot, "/libo32"), Paths);
--    addPathIfExists(D, concat(SysRoot, "/usr/libo32"), Paths);
-+    if (!IsRosa) {
-+      addPathIfExists(D, concat(SysRoot, "/libo32"), Paths);
-+      addPathIfExists(D, concat(SysRoot, "/usr/libo32"), Paths);
-+    } else {
-+      addPathIfExists(D, concat(SysRoot, "/system/libo32"), Paths);
-+    }
-   }
-   Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths);
- 
-@@ -360,18 +372,30 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
-         Paths);
-   }
- 
--  addPathIfExists(D, concat(SysRoot, "/usr/lib", MultiarchTriple), Paths);
--  addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir), Paths);
-+  if (!IsRosa) {
-+    addPathIfExists(D, concat(SysRoot, "/usr/lib", MultiarchTriple), Paths);
-+    addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir), Paths);
-+  } else {
-+    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);
-+    if (!IsRosa)
-+      addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir, ABIName), Paths);
-+    else
-+      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);
-+  if (!IsRosa) {
-+    addPathIfExists(D, concat(SysRoot, "/lib"), Paths);
-+    addPathIfExists(D, concat(SysRoot, "/usr/lib"), Paths);
-+  } else {
-+    addPathIfExists(D, concat(SysRoot, "/system/lib"), Paths);
-+  }
- }
- 
- ToolChain::RuntimeLibType Linux::GetDefaultRuntimeLibType() const {
-@@ -572,6 +596,9 @@ std::string Linux::getDynamicLinker(const ArgList &Args) const {
-     return Triple.isArch64Bit() ? "/system/bin/linker64" : "/system/bin/linker";
-   }
-   if (Triple.isMusl()) {
-+    if (Triple.getVendor() == llvm::Triple::Rosa)
-+      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 f484d6f33ad8..dca55e72d67e 100644
---- a/clang/tools/clang-installapi/Options.cpp
-+++ b/clang/tools/clang-installapi/Options.cpp
-@@ -514,7 +514,7 @@ 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"};
- 
-`},
-}