https://github.com/brad0 updated
https://github.com/llvm/llvm-project/pull/125998
>From a4e594975abe96aac033c5c62453df6046d7d25b Mon Sep 17 00:00:00 2001
From: Brad Smith <b...@comstyle.com>
Date: Wed, 5 Feb 2025 22:52:59 -0500
Subject: [PATCH] [flang][Driver] When linking with the Fortran runtime also
link with libexecinfo
Also link with libexecinfo on FreeBSD, NetBSD, OpenBSD and DragonFly
for the backtrace functions.
---
clang/lib/Driver/ToolChains/CommonArgs.cpp | 5 +++++
flang/test/Driver/linker-flags.f90 | 16 ++++++++++++----
2 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp
b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index c3c22a419f352a3..699aadec86dcba9 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -1340,6 +1340,11 @@ void tools::addFortranRuntimeLibs(const ToolChain &TC,
const ArgList &Args,
CmdArgs.push_back("-lFortranRuntime");
CmdArgs.push_back("-lFortranDecimal");
addArchSpecificRPath(TC, Args, CmdArgs);
+
+ // needs libexecinfo for backtrace functions
+ if (TC.getTriple().isOSFreeBSD() || TC.getTriple().isOSNetBSD() ||
+ TC.getTriple().isOSOpenBSD() || TC.getTriple().isOSDragonFly())
+ CmdArgs.push_back("-lexecinfo");
}
// libomp needs libatomic for atomic operations if using libgcc
diff --git a/flang/test/Driver/linker-flags.f90
b/flang/test/Driver/linker-flags.f90
index ac9500d7c45cecd..b998cbaa6227c35 100644
--- a/flang/test/Driver/linker-flags.f90
+++ b/flang/test/Driver/linker-flags.f90
@@ -5,10 +5,10 @@
! RUN: %flang -### --target=ppc64le-linux-gnu %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,UNIX,UNIX-F128%f128-lib
! RUN: %flang -### --target=aarch64-apple-darwin %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,DARWIN,DARWIN-F128%f128-lib
! RUN: %flang -### --target=sparc-sun-solaris2.11 %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,UNIX,SOLARIS-F128%f128-lib
-! RUN: %flang -### --target=x86_64-unknown-freebsd %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,UNIX,UNIX-F128%f128-lib
-! RUN: %flang -### --target=x86_64-unknown-netbsd %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,UNIX,UNIX-F128%f128-lib
-! RUN: %flang -### --target=x86_64-unknown-openbsd %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,UNIX,UNIX-F128%f128-lib
-! RUN: %flang -### --target=x86_64-unknown-dragonfly %S/Inputs/hello.f90 2>&1
| FileCheck %s --check-prefixes=CHECK,UNIX,UNIX-F128%f128-lib
+! RUN: %flang -### --target=x86_64-unknown-freebsd %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,BSD,BSD-F128%f128-lib
+! RUN: %flang -### --target=x86_64-unknown-netbsd %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,BSD,BSD-F128%f128-lib
+! RUN: %flang -### --target=x86_64-unknown-openbsd %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,BSD,BSD-F128%f128-lib
+! RUN: %flang -### --target=x86_64-unknown-dragonfly %S/Inputs/hello.f90 2>&1
| FileCheck %s --check-prefixes=CHECK,BSD,BSD-F128%f128-lib
! RUN: %flang -### --target=x86_64-unknown-haiku %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,HAIKU,HAIKU-F128%f128-lib
! RUN: %flang -### --target=x86_64-windows-gnu %S/Inputs/hello.f90 2>&1 |
FileCheck %s --check-prefixes=CHECK,MINGW,MINGW-F128%f128-lib
! RUN: %flang -### -rtlib=compiler-rt --target=aarch64-linux-gnu
%S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,UNIX,COMPILER-RT
@@ -36,6 +36,14 @@
! UNIX-SAME: "-lFortranRuntime" "-lFortranDecimal" "-lm"
! COMPILER-RT: "{{.*}}{{\\|/}}libclang_rt.builtins.a"
+! BSD-LABEL: "{{.*}}ld{{(\.exe)?}}"
+! BSD-SAME: "[[object_file]]"
+! BSD-F128NONE-NOT: FortranFloat128Math
+! BSD-F128LIBQUADMATH-SAME: "-lFortranFloat128Math" "--as-needed" "-lquadmath"
"--no-as-needed"
+! BSD-SAME: -lFortranRuntime
+! BSD-SAME: -lFortranDecimal
+! BSD-SAME: -lexecinfo
+
! DARWIN-LABEL: "{{.*}}ld{{(\.exe)?}}"
! DARWIN-SAME: "[[object_file]]"
! DARWIN-F128NONE-NOT: FortranFloat128Math
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