[clang] ec094d2 - [z/OS][pg] Throw error when using -pg on z/OS

[Michael Francis via cfe-commits]

Author: Michael Francis
Date: 2023-02-09T16:14:29Z
New Revision: ec094d259ecfdd82b951f644bc9a28e487e53c60

URL: https://github.com/llvm/llvm-project/commit/ec094d259ecfdd82b951f644bc9a28e487e53c60
DIFF: https://github.com/llvm/llvm-project/commit/ec094d259ecfdd82b951f644bc9a28e487e53c60.diff

LOG: [z/OS][pg] Throw error when using -pg on z/OS

Throw an error when trying to compile with `-pg` on z/OS,
as the platform does not support `gprof`.

Reviewed By: cebowleratibm, MaskRay

Differential Revision: https://reviews.llvm.org/D137756

Added: 
    clang/test/Driver/zos-profiling-error.c

Modified: 
    clang/lib/Driver/ToolChains/Clang.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 3aff071d75394..58d6215670ad6 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -6338,6 +6338,12 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
           << A->getAsString(Args) << TripleStr;
     }
   }
+  if (Arg *A = Args.getLastArgNoClaim(options::OPT_pg)) {
+    if (TC.getTriple().isOSzOS()) {
+      D.Diag(diag::err_drv_unsupported_opt_for_target)
+          << A->getAsString(Args) << TripleStr;
+    }
+  }
 
   if (Args.getLastArg(options::OPT_fapple_kext) ||
       (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType)))

diff  --git a/clang/test/Driver/zos-profiling-error.c b/clang/test/Driver/zos-profiling-error.c
new file mode 100644
index 0000000000000..e969dc31a245a
--- /dev/null
+++ b/clang/test/Driver/zos-profiling-error.c
@@ -0,0 +1,2 @@
+// RUN: %clang 2>&1 -### --target=s390x-none-zos -pg -S %s | FileCheck -check-prefix=FAIL-PG-NAME %s
+// FAIL-PG-NAME: error: unsupported option '-pg' for target 's390x-none-zos'