InstrProf: Look for the PIC-version of the profile runtime

If `-shared` is specified, pull in a PIC-version of the profile runtime,
which was added to compiler-rt in r208947.  I'm hoping this will get the
bots on my side.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@208948 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index afef7008fadf852e10c5888e8d2d72eecbc91abc..5ad1299f7f08acc0f48d6e0d4e27215f7dbaacb3 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1913,9 +1913,16 @@ static void addProfileRT(
         Args.hasArg(options::OPT_coverage)))
     return;
 
+  // -fprofile-instr-generate requires position-independent code to build with
+  // shared objects.  Link against the right archive.
+  const char *Lib = "libclang_rt.profile-";
+  if (Args.hasArg(options::OPT_fprofile_instr_generate) &&
+      Args.hasArg(options::OPT_shared))
+    Lib = "libclang_rt.profile-pic-";
+
   SmallString<128> LibProfile = getCompilerRTLibDir(TC);
   llvm::sys::path::append(LibProfile,
-      Twine("libclang_rt.profile-") + getArchNameForCompilerRTLib(TC) + ".a");
+      Twine(Lib) + getArchNameForCompilerRTLib(TC) + ".a");
 
   CmdArgs.push_back(Args.MakeArgString(LibProfile));
 }

diff --git a/test/Driver/instrprof-ld.c b/test/Driver/instrprof-ld.c
new file mode 100644 (file)
index 0000000..f70ae47
--- /dev/null
+++ b/test/Driver/instrprof-ld.c
@@ -0,0 +1,58 @@
+// Test instrumented profiling ld flags.
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -target i386-unknown-linux -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-LINUX-I386 %s
+//
+// CHECK-LINUX-I386: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-LINUX-I386: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}linux{{/|\\\\}}libclang_rt.profile-i386.a" {{.*}} "-lc"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-linux -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-LINUX-X86-64 %s
+//
+// CHECK-LINUX-X86-64: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-LINUX-X86-64: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}linux{{/|\\\\}}libclang_rt.profile-x86_64.a" {{.*}} "-lc"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-freebsd -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_freebsd64_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-FREEBSD-X86-64 %s
+//
+// CHECK-FREEBSD-X86-64: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-FREEBSD-X86-64: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}freebsd{{/|\\\\}}libclang_rt.profile-x86_64.a"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -shared \
+// RUN:     -target i386-unknown-linux -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-LINUX-I386-SHARED %s
+//
+// CHECK-LINUX-I386-SHARED: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-LINUX-I386-SHARED: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}linux{{/|\\\\}}libclang_rt.profile-pic-i386.a" {{.*}} "-lc"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -shared \
+// RUN:     -target x86_64-unknown-linux -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-LINUX-X86-64-SHARED %s
+//
+// CHECK-LINUX-X86-64-SHARED: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-LINUX-X86-64-SHARED: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}linux{{/|\\\\}}libclang_rt.profile-pic-x86_64.a" {{.*}} "-lc"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -shared \
+// RUN:     -target x86_64-unknown-freebsd -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:     --sysroot=%S/Inputs/basic_freebsd64_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-FREEBSD-X86-64-SHARED %s
+//
+// CHECK-FREEBSD-X86-64-SHARED: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-FREEBSD-X86-64-SHARED: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}freebsd{{/|\\\\}}libclang_rt.profile-pic-x86_64.a"