From: Vedant Kumar <vsk@apple.com>
Date: Fri, 13 Apr 2018 23:43:59 +0000 (+0000)
Subject: [Driver] Export profiling symbols for -exported_symbols_list
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bfca04847134d5c7395681e28546729aab333314;p=clang

[Driver] Export profiling symbols for -exported_symbols_list

When profiling is enabled and -exported_symbols_list is specified for
the Darwin linker, export the requisite set of profiling symbols.

rdar://39427167

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@330077 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/ToolChains/Darwin.cpp b/lib/Driver/ToolChains/Darwin.cpp
index 70db1dda20..2c1234c83a 100644
--- a/lib/Driver/ToolChains/Darwin.cpp
+++ b/lib/Driver/ToolChains/Darwin.cpp
@@ -988,6 +988,8 @@ StringRef Darwin::getOSLibraryNameSuffix() const {
 /// Check if the link command contains a symbol export directive.
 static bool hasExportSymbolDirective(const ArgList &Args) {
   for (Arg *A : Args) {
+    if (A->getOption().matches(options::OPT_exported__symbols__list))
+      return true;
     if (!A->getOption().matches(options::OPT_Wl_COMMA) &&
         !A->getOption().matches(options::OPT_Xlinker))
       continue;
diff --git a/test/Driver/darwin-ld.c b/test/Driver/darwin-ld.c
index 9275d0ff08..9dd2e2b6ca 100644
--- a/test/Driver/darwin-ld.c
+++ b/test/Driver/darwin-ld.c
@@ -356,6 +356,8 @@
 // RUN: FileCheck -check-prefix=LINK_PROFILE_FIRST %s < %t.log
 // LINK_PROFILE_FIRST: {{ld(.exe)?"}} "{{[^"]+}}libclang_rt.profile_{{[a-z]+}}.a"
 
+// RUN: %clang -target x86_64-apple-darwin12 -fprofile-instr-generate -exported_symbols_list /dev/null -### %t.o 2> %t.log
+// RUN: FileCheck -check-prefix=PROFILE_EXPORT %s < %t.log
 // RUN: %clang -target x86_64-apple-darwin12 -fprofile-instr-generate -Wl,-exported_symbols_list,/dev/null -### %t.o 2> %t.log
 // RUN: FileCheck -check-prefix=PROFILE_EXPORT %s < %t.log
 // RUN: %clang -target x86_64-apple-darwin12 -fprofile-instr-generate -Wl,-exported_symbol,foo -### %t.o 2> %t.log