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85da0f6fb5
Summary: This patch (on top of https://reviews.llvm.org/D35755) provides the clang side necessary to enable the Solaris port of the sanitizers implemented by https://reviews.llvm.org/D40898, https://reviews.llvm.org/D40899, and https://reviews.llvm.org/D40900). A few features of note: * While compiler-rt cmake/base-config-ix.cmake (COMPILER_RT_OS_DIR) places the runtime libs in a tolower(CMAKE_SYSTEM_NAME) directory, clang defaults to the OS part of the target triplet (solaris2.11 in the case at hand). The patch makes them agree on compiler-rt's idea. * While Solaris ld accepts a considerable number of GNU ld options for compatibility, it only does so for the double-dash forms. clang unfortunately is inconsistent here and sometimes uses the double-dash form, sometimes the single-dash one that confuses the hell out of Solaris ld. I've changed the affected places to use the double-dash form that should always work. * As described in https://reviews.llvm.org/D40899, Solaris ld doesn't create the __start___sancov_guards/__stop___sancov_guards labels gld/gold/lld do, so I'm including additional runtime libs into the link that provide them. * One test uses -fstack-protector, but unlike other systems libssp hasn't been folded into Solaris libc, but needs to be linked with separately. * For now, only 32-bit x86 asan is enabled on Solaris. 64-bit x86 should follow, but sparc (which requires additional compiler-rt changes not yet submitted) fails miserably due to a llvmsparc backend limitation: fatal error: error in backend: Function "_ZN7testing8internal16BoolFromGTestEnvEPKcb": over-aligned dynamic alloca not supported. However, inside the gcc tree, Solaris/sparc asan works almost as well as x86. Reviewers: rsmith, alekseyshl Reviewed By: alekseyshl Subscribers: jyknight, fedor.sergeev, cfe-commits Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D40903 llvm-svn: 324296
81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
//===--- Solaris.h - Solaris ToolChain Implementations ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_SOLARIS_H
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#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_SOLARIS_H
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#include "Gnu.h"
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#include "clang/Driver/Tool.h"
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#include "clang/Driver/ToolChain.h"
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namespace clang {
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namespace driver {
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namespace tools {
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/// solaris -- Directly call Solaris assembler and linker
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namespace solaris {
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class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
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public:
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Assembler(const ToolChain &TC)
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: Tool("solaris::Assembler", "assembler", TC) {}
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bool hasIntegratedCPP() const override { return false; }
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void ConstructJob(Compilation &C, const JobAction &JA,
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const InputInfo &Output, const InputInfoList &Inputs,
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const llvm::opt::ArgList &TCArgs,
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const char *LinkingOutput) const override;
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};
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class LLVM_LIBRARY_VISIBILITY Linker : public Tool {
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public:
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Linker(const ToolChain &TC) : Tool("solaris::Linker", "linker", TC) {}
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bool hasIntegratedCPP() const override { return false; }
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bool isLinkJob() const override { return true; }
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void ConstructJob(Compilation &C, const JobAction &JA,
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const InputInfo &Output, const InputInfoList &Inputs,
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const llvm::opt::ArgList &TCArgs,
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const char *LinkingOutput) const override;
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};
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} // end namespace solaris
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} // end namespace tools
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namespace toolchains {
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class LLVM_LIBRARY_VISIBILITY Solaris : public Generic_ELF {
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public:
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Solaris(const Driver &D, const llvm::Triple &Triple,
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const llvm::opt::ArgList &Args);
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bool IsIntegratedAssemblerDefault() const override { return true; }
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void
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AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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void
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addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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SanitizerMask getSupportedSanitizers() const override;
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unsigned GetDefaultDwarfVersion() const override { return 2; }
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protected:
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Tool *buildAssembler() const override;
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Tool *buildLinker() const override;
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};
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} // end namespace toolchains
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} // end namespace driver
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} // end namespace clang
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#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_SOLARIS_H
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