[compiler-rt] r346276 - [Darwin] Export new weak external symbols when compiling with coverage

[Vedant Kumar via llvm-commits]

Author: vedantk
Date: Tue Nov  6 14:25:00 2018
New Revision: 346276

URL: http://llvm.org/viewvc/llvm-project?rev=346276&view=rev
Log:
[Darwin] Export new weak external symbols when compiling with coverage

Some weak external symbols were added to the profile runtime in D49953,
and on Darwin, these need to be exported for tapi verification purposes.

I've tightened the test so that future breakages can be caught earlier.

rdar://45831054

Modified:
    compiler-rt/trunk/test/profile/instrprof-darwin-exports.c

Modified: compiler-rt/trunk/test/profile/instrprof-darwin-exports.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/instrprof-darwin-exports.c?rev=346276&r1=346275&r2=346276&view=diff
==============================================================================
--- compiler-rt/trunk/test/profile/instrprof-darwin-exports.c (original)
+++ compiler-rt/trunk/test/profile/instrprof-darwin-exports.c Tue Nov  6 14:25:00 2018
@@ -8,4 +8,12 @@
 // RUN: %clang_profgen -Werror -fcoverage-mapping -Wl,-exported_symbols_list,%t.exports -o %t %s 2>&1 | tee -a %t.log
 // RUN: cat %t.log | count 0
 
+// The default set of weak external symbols should match the set of symbols
+// exported by clang. See Darwin::addProfileRTLibs.
+
+// RUN: %clang_pgogen -Werror -o %t.default %s
+// RUN: nm -jUg %t.default | grep -v __mh_execute_header > %t.default.exports
+// RUN: nm -jUg %t > %t.clang.exports
+// RUN: diff %t.default.exports %t.clang.exports
+
 int main() {}