rSerge updated this revision to Diff 75452. rSerge added a comment. I had to add the root directories `a` and `b` manually, as I couldn't find an `svn diff` argument for that. The code file `Tools.cpp` was run via `clang-format`, then just my changes were copy-pasted. 2 tests have been added to enable both OS and CPU checking. `const string` approach was leading to undefined behavior, because the lifetime of the string is shorter than the lifetime of the `const char *` array using its data. So I had to return to `const char* const`.
https://reviews.llvm.org/D24799 Files: lib/Driver/Tools.cpp test/Driver/XRay/lit.local.cfg test/Driver/XRay/xray-instrument-cpu.c test/Driver/XRay/xray-instrument-os.c Index: test/Driver/XRay/xray-instrument-os.c =================================================================== --- test/Driver/XRay/xray-instrument-os.c +++ test/Driver/XRay/xray-instrument-os.c @@ -0,0 +1,4 @@ +// RUN: not %clang -v -fxray-instrument -c %s +// XFAIL: -linux- +// REQUIRES-ANY: amd64, x86_64, x86_64h, arm +typedef int a; Index: test/Driver/XRay/xray-instrument-cpu.c =================================================================== --- test/Driver/XRay/xray-instrument-cpu.c +++ test/Driver/XRay/xray-instrument-cpu.c @@ -0,0 +1,4 @@ +// RUN: not %clang -v -fxray-instrument -c %s +// XFAIL: amd64-, x86_64-, x86_64h-, arm +// REQUIRES: linux +typedef int a; Index: test/Driver/XRay/lit.local.cfg =================================================================== --- test/Driver/XRay/lit.local.cfg +++ test/Driver/XRay/lit.local.cfg @@ -0,0 +1,2 @@ +target_triple_components = config.target_triple.split('-') +config.available_features.update(target_triple_components) Index: lib/Driver/Tools.cpp =================================================================== --- lib/Driver/Tools.cpp +++ lib/Driver/Tools.cpp @@ -4804,7 +4804,16 @@ if (Args.hasFlag(options::OPT_fxray_instrument, options::OPT_fnoxray_instrument, false)) { - CmdArgs.push_back("-fxray-instrument"); + const char *const XRayInstrumentOption = "-fxray-instrument"; + if (Triple.getOS() == llvm::Triple::Linux && + (Triple.getArch() == llvm::Triple::arm || + Triple.getArch() == llvm::Triple::x86_64)) { + // Supported. + } else { + D.Diag(diag::err_drv_clang_unsupported) + << (std::string(XRayInstrumentOption) + " on " + Triple.str()); + } + CmdArgs.push_back(XRayInstrumentOption); if (const Arg *A = Args.getLastArg(options::OPT_fxray_instruction_threshold_, options::OPT_fxray_instruction_threshold_EQ)) {
Index: test/Driver/XRay/xray-instrument-os.c =================================================================== --- test/Driver/XRay/xray-instrument-os.c +++ test/Driver/XRay/xray-instrument-os.c @@ -0,0 +1,4 @@ +// RUN: not %clang -v -fxray-instrument -c %s +// XFAIL: -linux- +// REQUIRES-ANY: amd64, x86_64, x86_64h, arm +typedef int a; Index: test/Driver/XRay/xray-instrument-cpu.c =================================================================== --- test/Driver/XRay/xray-instrument-cpu.c +++ test/Driver/XRay/xray-instrument-cpu.c @@ -0,0 +1,4 @@ +// RUN: not %clang -v -fxray-instrument -c %s +// XFAIL: amd64-, x86_64-, x86_64h-, arm +// REQUIRES: linux +typedef int a; Index: test/Driver/XRay/lit.local.cfg =================================================================== --- test/Driver/XRay/lit.local.cfg +++ test/Driver/XRay/lit.local.cfg @@ -0,0 +1,2 @@ +target_triple_components = config.target_triple.split('-') +config.available_features.update(target_triple_components) Index: lib/Driver/Tools.cpp =================================================================== --- lib/Driver/Tools.cpp +++ lib/Driver/Tools.cpp @@ -4804,7 +4804,16 @@ if (Args.hasFlag(options::OPT_fxray_instrument, options::OPT_fnoxray_instrument, false)) { - CmdArgs.push_back("-fxray-instrument"); + const char *const XRayInstrumentOption = "-fxray-instrument"; + if (Triple.getOS() == llvm::Triple::Linux && + (Triple.getArch() == llvm::Triple::arm || + Triple.getArch() == llvm::Triple::x86_64)) { + // Supported. + } else { + D.Diag(diag::err_drv_clang_unsupported) + << (std::string(XRayInstrumentOption) + " on " + Triple.str()); + } + CmdArgs.push_back(XRayInstrumentOption); if (const Arg *A = Args.getLastArg(options::OPT_fxray_instruction_threshold_, options::OPT_fxray_instruction_threshold_EQ)) {
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