Author: olista01 Date: Mon Feb 18 04:39:47 2019 New Revision: 354265 URL: http://llvm.org/viewvc/llvm-project?rev=354265&view=rev Log: [ARM] Add pre-defined macros for ROPI and RWPI
This adds ACLE-defined macros to test for code being compiled in the ROPI and RWPI position-independence modes. Differential revision: https://reviews.llvm.org/D23610 Added: cfe/trunk/test/Preprocessor/arm-pic-predefines.c Modified: cfe/trunk/include/clang/Basic/LangOptions.def cfe/trunk/include/clang/Driver/Options.td cfe/trunk/lib/Basic/Targets/ARM.cpp cfe/trunk/lib/Driver/ToolChains/Clang.cpp cfe/trunk/lib/Frontend/CompilerInvocation.cpp Modified: cfe/trunk/include/clang/Basic/LangOptions.def URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.def?rev=354265&r1=354264&r2=354265&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/LangOptions.def (original) +++ cfe/trunk/include/clang/Basic/LangOptions.def Mon Feb 18 04:39:47 2019 @@ -170,6 +170,8 @@ VALUE_LANGOPT(MaxTypeAlign , 32, 0, VALUE_LANGOPT(AlignDouble , 1, 0, "Controls if doubles should be aligned to 8 bytes (x86 only)") COMPATIBLE_VALUE_LANGOPT(PICLevel , 2, 0, "__PIC__ level") COMPATIBLE_VALUE_LANGOPT(PIE , 1, 0, "is pie") +LANGOPT(ROPI , 1, 0, "Read-only position independence") +LANGOPT(RWPI , 1, 0, "Read-write position independence") COMPATIBLE_LANGOPT(GNUInline , 1, 0, "GNU inline semantics") COMPATIBLE_LANGOPT(NoInlineDefine , 1, 0, "__NO_INLINE__ predefined macro") COMPATIBLE_LANGOPT(Deprecated , 1, 0, "__DEPRECATED predefined macro") Modified: cfe/trunk/include/clang/Driver/Options.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=354265&r1=354264&r2=354265&view=diff ============================================================================== --- cfe/trunk/include/clang/Driver/Options.td (original) +++ cfe/trunk/include/clang/Driver/Options.td Mon Feb 18 04:39:47 2019 @@ -1606,9 +1606,9 @@ def fplt : Flag<["-"], "fplt">, Group<f_ HelpText<"Use the PLT to make function calls">; def fno_plt : Flag<["-"], "fno-plt">, Group<f_Group>, Flags<[CC1Option]>, HelpText<"Do not use the PLT to make function calls">; -def fropi : Flag<["-"], "fropi">, Group<f_Group>; +def fropi : Flag<["-"], "fropi">, Group<f_Group>, Flags<[CC1Option]>; def fno_ropi : Flag<["-"], "fno-ropi">, Group<f_Group>; -def frwpi : Flag<["-"], "frwpi">, Group<f_Group>; +def frwpi : Flag<["-"], "frwpi">, Group<f_Group>, Flags<[CC1Option]>; def fno_rwpi : Flag<["-"], "fno-rwpi">, Group<f_Group>; def fplugin_EQ : Joined<["-"], "fplugin=">, Group<f_Group>, Flags<[DriverOption]>, MetaVarName<"<dsopath>">, HelpText<"Load the named plugin (dynamic shared object)">; Modified: cfe/trunk/lib/Basic/Targets/ARM.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/ARM.cpp?rev=354265&r1=354264&r2=354265&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Targets/ARM.cpp (original) +++ cfe/trunk/lib/Basic/Targets/ARM.cpp Mon Feb 18 04:39:47 2019 @@ -652,6 +652,12 @@ void ARMTargetInfo::getTargetDefines(con if (SoftFloat) Builder.defineMacro("__SOFTFP__"); + // ACLE position independent code macros. + if (Opts.ROPI) + Builder.defineMacro("__ARM_ROPI", "1"); + if (Opts.RWPI) + Builder.defineMacro("__ARM_RWPI", "1"); + if (ArchKind == llvm::ARM::ArchKind::XSCALE) Builder.defineMacro("__XSCALE__"); Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=354265&r1=354264&r2=354265&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original) +++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Mon Feb 18 04:39:47 2019 @@ -3810,6 +3810,13 @@ void Clang::ConstructJob(Compilation &C, CmdArgs.push_back("-pic-is-pie"); } + if (RelocationModel == llvm::Reloc::ROPI || + RelocationModel == llvm::Reloc::ROPI_RWPI) + CmdArgs.push_back("-fropi"); + if (RelocationModel == llvm::Reloc::RWPI || + RelocationModel == llvm::Reloc::ROPI_RWPI) + CmdArgs.push_back("-frwpi"); + if (Arg *A = Args.getLastArg(options::OPT_meabi)) { CmdArgs.push_back("-meabi"); CmdArgs.push_back(A->getValue()); Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=354265&r1=354264&r2=354265&view=diff ============================================================================== --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original) +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Feb 18 04:39:47 2019 @@ -2662,6 +2662,8 @@ static void ParseLangArgs(LangOptions &O Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); Opts.AlignDouble = Args.hasArg(OPT_malign_double); Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); + Opts.ROPI = Args.hasArg(OPT_fropi); + Opts.RWPI = Args.hasArg(OPT_frwpi); Opts.PIE = Args.hasArg(OPT_pic_is_pie); Opts.Static = Args.hasArg(OPT_static_define); Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); Added: cfe/trunk/test/Preprocessor/arm-pic-predefines.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/arm-pic-predefines.c?rev=354265&view=auto ============================================================================== --- cfe/trunk/test/Preprocessor/arm-pic-predefines.c (added) +++ cfe/trunk/test/Preprocessor/arm-pic-predefines.c Mon Feb 18 04:39:47 2019 @@ -0,0 +1,14 @@ +// REQUIRES: arm-registered-target + +// RUN: %clang -target armv8--none-eabi -x c -E -dM %s -o - | FileCheck %s --check-prefix=NO-ROPI --check-prefix=NO-RWPI +// RUN: %clang -target armv8--none-eabi -x c -E -dM %s -o - -fropi | FileCheck %s --check-prefix=ROPI --check-prefix=NO-RWPI +// RUN: %clang -target armv8--none-eabi -x c -E -dM %s -o - -frwpi | FileCheck %s --check-prefix=NO-ROPI --check-prefix=RWPI +// RUN: %clang -target armv8--none-eabi -x c -E -dM %s -o - -fropi -frwpi | FileCheck %s --check-prefix=ROPI --check-prefix=RWPI + +// Pre-defined macros for position-independence modes + +// NO-ROPI-NOT: #define __APCS_ROPI +// ROPI: #define __ARM_ROPI + +// NO-RWPI-NOT: #define __APCS_RWPI +// RWPI: #define __ARM_RWPI _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
