[PATCH] D137756: [z/OS][p][pg] Throw Error When Using -p or -pg on z/OS

[Michael Francis via Phabricator via cfe-commits]

francii created this revision.
Herald added a project: All.
francii requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay.
Herald added a project: clang.

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


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137756

Files:
  clang/include/clang/Basic/DiagnosticDriverKinds.td
  clang/lib/Driver/ToolChains/ZOS.cpp
  clang/test/Driver/zos-profiling-error.c


Index: clang/test/Driver/zos-profiling-error.c
===================================================================
--- /dev/null
+++ clang/test/Driver/zos-profiling-error.c
@@ -0,0 +1,7 @@
+// Check failed cases
+
+// RUN: not %clang -target s390x-none-zos -p -S %s 2>&1 | FileCheck -check-prefix=FAIL-P-NAME %s
+// FAIL-P-NAME: error: the clang compiler does not support the '-p' option on z/OS.
+
+// RUN: not %clang -target s390x-none-zos -pg -S %s 2>&1 | FileCheck -check-prefix=FAIL-PG-NAME %s
+// FAIL-PG-NAME: error: the clang compiler does not support the '-pg' option on z/OS.
Index: clang/lib/Driver/ToolChains/ZOS.cpp
===================================================================
--- clang/lib/Driver/ToolChains/ZOS.cpp
+++ clang/lib/Driver/ToolChains/ZOS.cpp
@@ -18,7 +18,12 @@
 using namespace clang;
 
 ZOS::ZOS(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
-    : ToolChain(D, Triple, Args) {}
+    : ToolChain(D, Triple, Args) {
+  for (Arg *A : Args.filtered(options::OPT_p, options::OPT_pg)) {
+    auto ArgString = A->getAsString(Args);
+    this->getDriver().Diag(diag::err_option_unsupported_zos) << ArgString;
+  }
+}
 
 ZOS::~ZOS() {}
 
Index: clang/include/clang/Basic/DiagnosticDriverKinds.td
===================================================================
--- clang/include/clang/Basic/DiagnosticDriverKinds.td
+++ clang/include/clang/Basic/DiagnosticDriverKinds.td
@@ -237,6 +237,9 @@
 def err_arch_unsupported_isa
   : Error<"architecture '%0' does not support '%1' execution mode">;
 
+def err_option_unsupported_zos: Error<
+  "the clang compiler does not support the '%0' option on z/OS.">;
+
 def err_drv_I_dash_not_supported : Error<
   "'%0' not supported, please use -iquote instead">;
 def err_drv_unknown_argument : Error<"unknown argument: '%0'">;


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