compiler-rt/test/profile/instrprof-darwin-exports.c

   1 // REQUIRES: osx-ld64-live_support
   2
   3 // Compiling with PGO/code coverage on Darwin should raise no warnings or errors
   4 // when using an exports list.
   5
   6 // 1) Check that using PGO/code coverage flags with an export list containing
   7 // just "_main" produces no warnings or errors.
   8 //
   9 // RUN: echo "_main" > %t.exports
  10 // RUN: %clang_pgogen -Werror -Wl,-exported_symbols_list,%t.exports -o %t %s 2>&1 | tee %t.log
  11 // RUN: %clang_profgen -Werror -fcoverage-mapping -Wl,-exported_symbols_list,%t.exports -o %t %s 2>&1 | tee -a %t.log
  12 // RUN: cat %t.log | count 0
  13
  14 // 2) Ditto (1), but for GCOV.
  15 //
  16 // RUN: %clang -Werror -Wl,-exported_symbols_list,%t.exports --coverage -o %t.gcov %s | tee -a %t.gcov.log
  17 // RUN: cat %t.gcov.log | count 0
  18
  19 // 3) The default set of weak external symbols should match the set of symbols
  20 // exported by clang. See Darwin::addProfileRTLibs. This requirement was put in
  21 // place to support tapi binary verification.
  22 //
  23 // RUN: %clang_pgogen -Werror -o %t.default %s
  24 // RUN: nm -jUg %t.default | grep -v __mh_execute_header > %t.default.exports
  25 // RUN: nm -jUg %t | grep -v __mh_execute_header > %t.clang.exports
  26 // RUN: diff %t.default.exports %t.clang.exports
  27
  28 // 4) Ditto (3), but for GCOV.
  29 //
  30 // RUN: %clang -Werror --coverage -o %t.gcov.default %s
  31 // RUN: nm -jUg %t.gcov | grep -v __mh_execute_header > %t.gcov.exports
  32 // RUN: nm -jUg %t.gcov.default | grep -v __mh_execute_header > %t.gcov.default.exports
  33 // RUN: diff %t.gcov.default.exports %t.gcov.exports
  34
  35 int main() {}