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[flang] Add -rtlib flag #99058

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Merged
merged 3 commits into from
Jul 17, 2024
Merged

[flang] Add -rtlib flag #99058

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66e13f9
[flang] Add -rtlib flag
DavidTruby Jul 16, 2024
70dbdf2
Remove clang_rt.crtbegin and clang_rt.crtend check
DavidTruby Jul 16, 2024
878a9a9
Fix windows path (\\ vs /)
DavidTruby Jul 17, 2024
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2 changes: 1 addition & 1 deletion clang/include/clang/Driver/Options.td
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Original file line number Diff line number Diff line change
Expand Up @@ -5621,7 +5621,7 @@ def resource_dir_EQ : Joined<["-"], "resource-dir=">, Flags<[NoXarchOption]>,
Alias<resource_dir>;
def rpath : Separate<["-"], "rpath">, Flags<[LinkerInput]>, Group<Link_Group>,
Visibility<[ClangOption, CLOption, DXCOption, FlangOption]>;
def rtlib_EQ : Joined<["-", "--"], "rtlib=">, Visibility<[ClangOption, CLOption]>,
def rtlib_EQ : Joined<["-", "--"], "rtlib=">, Visibility<[ClangOption, CLOption, FlangOption]>,
HelpText<"Compiler runtime library to use">;
def frtlib_add_rpath: Flag<["-"], "frtlib-add-rpath">, Flags<[NoArgumentUnused]>,
Visibility<[ClangOption, FlangOption]>,
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5 changes: 5 additions & 0 deletions flang/test/Driver/linker-flags.f90
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Expand Up @@ -11,6 +11,7 @@
! 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-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

! NOTE: Clang's driver library, clangDriver, usually adds 'oldnames' on Windows,
! but it is not needed when compiling Fortran code and they might bring in
Expand All @@ -33,6 +34,7 @@
! UNIX-F128LIBQUADMATH-SAME: "-lFortranFloat128Math" "--as-needed" "-lquadmath" "--no-as-needed"
! SOLARIS-F128LIBQUADMATH-SAME: "-lFortranFloat128Math" "-z" "ignore" "-lquadmath" "-z" "record"
! UNIX-SAME: "-lFortranRuntime" "-lFortranDecimal" "-lm"
! COMPILER-RT: "{{.*}}{{\\|/}}libclang_rt.builtins.a"

! DARWIN-LABEL: "{{.*}}ld{{(\.exe)?}}"
! DARWIN-SAME: "[[object_file]]"
Expand Down Expand Up @@ -61,3 +63,6 @@
! MSVC-LABEL: link
! MSVC-SAME: /subsystem:console
! MSVC-SAME: "[[object_file]]"

! COMPILER-RT-NOT: "-lgcc"
! COMPILER-RT-NOT: "-lgcc_s"
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