Author: emaste Date: Tue Sep 3 09:30:21 2019 New Revision: 370779 URL: http://llvm.org/viewvc/llvm-project?rev=370779&view=rev Log: clang: default to DWARF 4 for FreeBSD 12.0 and later
Older FreeBSD versions included GDB 6.1 and had other tools that were unable to handle debug information newer than DWARF 2. Those tools have since been updated. (An old version of GDB is still kept for kernel crash handling, but the kernel is compiled with an explicit -gdwarf2.) Reviewed by: dim Differential Revision: https://reviews.llvm.org/D66760 Modified: cfe/trunk/lib/Driver/ToolChains/FreeBSD.cpp cfe/trunk/lib/Driver/ToolChains/FreeBSD.h cfe/trunk/test/Driver/debug-options.c Modified: cfe/trunk/lib/Driver/ToolChains/FreeBSD.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/FreeBSD.cpp?rev=370779&r1=370778&r2=370779&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/FreeBSD.cpp (original) +++ cfe/trunk/lib/Driver/ToolChains/FreeBSD.cpp Tue Sep 3 09:30:21 2019 @@ -364,6 +364,12 @@ ToolChain::CXXStdlibType FreeBSD::GetDef return ToolChain::CST_Libstdcxx; } +unsigned FreeBSD::GetDefaultDwarfVersion() const { + if (getTriple().getOSMajorVersion() < 12) + return 2; + return 4; +} + void FreeBSD::addLibStdCxxIncludePaths( const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const { Modified: cfe/trunk/lib/Driver/ToolChains/FreeBSD.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/FreeBSD.h?rev=370779&r1=370778&r2=370779&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/FreeBSD.h (original) +++ cfe/trunk/lib/Driver/ToolChains/FreeBSD.h Tue Sep 3 09:30:21 2019 @@ -69,7 +69,7 @@ public: const llvm::opt::ArgList &Args) const override; bool isPIEDefault() const override; SanitizerMask getSupportedSanitizers() const override; - unsigned GetDefaultDwarfVersion() const override { return 2; } + unsigned GetDefaultDwarfVersion() const override; // Until dtrace (via CTF) and LLDB can deal with distributed debug info, // FreeBSD defaults to standalone/full debug info. bool GetDefaultStandaloneDebug() const override { return true; } Modified: cfe/trunk/test/Driver/debug-options.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/debug-options.c?rev=370779&r1=370778&r2=370779&view=diff ============================================================================== --- cfe/trunk/test/Driver/debug-options.c (original) +++ cfe/trunk/test/Driver/debug-options.c Tue Sep 3 09:30:21 2019 @@ -66,8 +66,12 @@ // RUN: -check-prefix=G_DWARF4 %s // FreeBSD. -// RUN: %clang -### -c -g %s -target x86_64-pc-freebsd10.0 2>&1 \ -// RUN: | FileCheck -check-prefix=G_GDB %s +// RUN: %clang -### -c -g %s -target x86_64-pc-freebsd11.0 2>&1 \ +// RUN: | FileCheck -check-prefix=G_GDB \ +// RUN: -check-prefix=G_DWARF2 %s +// RUN: %clang -### -c -g %s -target x86_64-pc-freebsd12.0 2>&1 \ +// RUN: | FileCheck -check-prefix=G_GDB \ +// RUN: -check-prefix=G_DWARF4 %s // Windows. // RUN: %clang -### -c -g %s -target x86_64-w64-windows-gnu 2>&1 \ _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
