From d004f3428f9532837275b0b8e2458dc56f2aab7c Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Sat, 26 Jun 2021 19:58:16 -0400
Subject: [PATCH] clang: stop linking _p libs for -pg as of FreeBSD 14

In FreeBSD 14 we will stop providing _p libraries (compiled with -pg).

[Note this is controlled by the target version.  There is no change for
FreeBSD <= 13.]

Reviewed by:	dim (upstream)
Obtained from:	LLVM 699d47472c3f
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D30861

(cherry picked from commit b762974cf4b9ea77f1decf4a6d829372f0a97f75)
---
 .../clang/lib/Driver/ToolChains/FreeBSD.cpp     | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/contrib/llvm-project/clang/lib/Driver/ToolChains/FreeBSD.cpp b/contrib/llvm-project/clang/lib/Driver/ToolChains/FreeBSD.cpp
index 6fb4ddd7f50..37ea8bed074 100644
--- a/contrib/llvm-project/clang/lib/Driver/ToolChains/FreeBSD.cpp
+++ b/contrib/llvm-project/clang/lib/Driver/ToolChains/FreeBSD.cpp
@@ -284,6 +284,8 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
   bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
   AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
 
+  bool Profiling = Args.hasArg(options::OPT_pg) &&
+                   ToolChain.getTriple().getOSMajorVersion() < 14;
   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
     // Use the static OpenMP runtime with -static-openmp
     bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
@@ -293,7 +295,7 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     if (D.CCCIsCXX()) {
       if (ToolChain.ShouldLinkCXXStdlib(Args))
         ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
-      if (Args.hasArg(options::OPT_pg))
+      if (Profiling)
         CmdArgs.push_back("-lm_p");
       else
         CmdArgs.push_back("-lm");
@@ -304,13 +306,13 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
       linkXRayRuntimeDeps(ToolChain, CmdArgs);
     // FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding
     // the default system libraries. Just mimic this for now.
-    if (Args.hasArg(options::OPT_pg))
+    if (Profiling)
       CmdArgs.push_back("-lgcc_p");
     else
       CmdArgs.push_back("-lgcc");
     if (Args.hasArg(options::OPT_static)) {
       CmdArgs.push_back("-lgcc_eh");
-    } else if (Args.hasArg(options::OPT_pg)) {
+    } else if (Profiling) {
       CmdArgs.push_back("-lgcc_eh_p");
     } else {
       CmdArgs.push_back("--as-needed");
@@ -319,13 +321,13 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     }
 
     if (Args.hasArg(options::OPT_pthread)) {
-      if (Args.hasArg(options::OPT_pg))
+      if (Profiling)
         CmdArgs.push_back("-lpthread_p");
       else
         CmdArgs.push_back("-lpthread");
     }
 
-    if (Args.hasArg(options::OPT_pg)) {
+    if (Profiling) {
       if (Args.hasArg(options::OPT_shared))
         CmdArgs.push_back("-lc");
       else
@@ -338,7 +340,7 @@ void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
 
     if (Args.hasArg(options::OPT_static)) {
       CmdArgs.push_back("-lgcc_eh");
-    } else if (Args.hasArg(options::OPT_pg)) {
+    } else if (Profiling) {
       CmdArgs.push_back("-lgcc_eh_p");
     } else {
       CmdArgs.push_back("--as-needed");
@@ -405,7 +407,8 @@ void FreeBSD::addLibStdCxxIncludePaths(
 void FreeBSD::AddCXXStdlibLibArgs(const ArgList &Args,
                                   ArgStringList &CmdArgs) const {
   CXXStdlibType Type = GetCXXStdlibType(Args);
-  bool Profiling = Args.hasArg(options::OPT_pg);
+  bool Profiling =
+      Args.hasArg(options::OPT_pg) && getTriple().getOSMajorVersion() < 14;
 
   switch (Type) {
   case ToolChain::CST_Libcxx:
-- 
2.45.0