MCJIT: [cygming] Give noop to __main also in RecordingMemoryManger. It is emitted in @main().

XFAIL(s) can be removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168282 91177308-0d34-0410-b5e6-96231b3b80d8

8 files changed, 20 insertions, 7 deletions

diff --git a/test/ExecutionEngine/MCJIT/simpletest-remote.ll b/test/ExecutionEngine/MCJIT/simpletest-remote.ll
index 1c0da9f1b5..0d0459cd14 100644
--- a/test/ExecutionEngine/MCJIT/simpletest-remote.ll
+++ b/test/ExecutionEngine/MCJIT/simpletest-remote.ll
@@ -1,5 +1,5 @@
 ; RUN: %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit %s > /dev/null
-; XFAIL: arm, mingw32
+; XFAIL: arm
 
 define i32 @bar() {
 	ret i32 0
diff --git a/test/ExecutionEngine/MCJIT/stubs-remote.ll b/test/ExecutionEngine/MCJIT/stubs-remote.ll
index 141c5af8f0..dc4cda4a59 100644
--- a/test/ExecutionEngine/MCJIT/stubs-remote.ll
+++ b/test/ExecutionEngine/MCJIT/stubs-remote.ll
@@ -1,5 +1,5 @@
 ; RUN: %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit -disable-lazy-compilation=false %s
-; XFAIL: arm, mingw32
+; XFAIL: arm
 
 define i32 @main() nounwind {
 entry:
diff --git a/test/ExecutionEngine/MCJIT/test-common-symbols-remote.ll b/test/ExecutionEngine/MCJIT/test-common-symbols-remote.ll
index 220eb2d01b..b269ba182e 100644
--- a/test/ExecutionEngine/MCJIT/test-common-symbols-remote.ll
+++ b/test/ExecutionEngine/MCJIT/test-common-symbols-remote.ll
@@ -1,5 +1,5 @@
 ; RUN: %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit -O0 -disable-lazy-compilation=false %s
-; XFAIL: arm, mingw32, cygwin
+; XFAIL: arm
 
 ; The intention of this test is to verify that symbols mapped to COMMON in ELF
 ; work as expected.
diff --git a/test/ExecutionEngine/MCJIT/test-data-align-remote.ll b/test/ExecutionEngine/MCJIT/test-data-align-remote.ll
index 7fcb18f053..86e7fcdd2e 100644
--- a/test/ExecutionEngine/MCJIT/test-data-align-remote.ll
+++ b/test/ExecutionEngine/MCJIT/test-data-align-remote.ll
@@ -1,5 +1,5 @@
 ; RUN:  %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit -O0 %s
-; XFAIL: arm, mingw32
+; XFAIL: arm
 
 ; Check that a variable is always aligned as specified.
 
diff --git a/test/ExecutionEngine/MCJIT/test-fp-no-external-funcs-remote.ll b/test/ExecutionEngine/MCJIT/test-fp-no-external-funcs-remote.ll
index eb1e3c5e0a..ac1999d4c3 100644
--- a/test/ExecutionEngine/MCJIT/test-fp-no-external-funcs-remote.ll
+++ b/test/ExecutionEngine/MCJIT/test-fp-no-external-funcs-remote.ll
@@ -1,5 +1,5 @@
 ; RUN: %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit %s > /dev/null
-; XFAIL: arm, mingw32
+; XFAIL: arm
 
 define double @test(double* %DP, double %Arg) {
 	%D = load double* %DP		; <double> [#uses=1]
diff --git a/test/ExecutionEngine/MCJIT/test-global-init-nonzero-remote.ll b/test/ExecutionEngine/MCJIT/test-global-init-nonzero-remote.ll
index 4c69ff7a2c..65f8af047a 100644
--- a/test/ExecutionEngine/MCJIT/test-global-init-nonzero-remote.ll
+++ b/test/ExecutionEngine/MCJIT/test-global-init-nonzero-remote.ll
@@ -1,5 +1,5 @@
 ; RUN: %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit %s > /dev/null
-; XFAIL: arm, mingw32, cygwin
+; XFAIL: arm
 
 @count = global i32 1, align 4
 
diff --git a/test/ExecutionEngine/MCJIT/test-ptr-reloc-remote.ll b/test/ExecutionEngine/MCJIT/test-ptr-reloc-remote.ll
index 78a8df8f71..83a9b43e39 100644
--- a/test/ExecutionEngine/MCJIT/test-ptr-reloc-remote.ll
+++ b/test/ExecutionEngine/MCJIT/test-ptr-reloc-remote.ll
@@ -1,5 +1,5 @@
 ; RUN: %lli -mtriple=%mcjit_triple -use-mcjit -remote-mcjit -O0 %s
-; XFAIL: arm, mingw32
+; XFAIL: arm
 
 @.str = private unnamed_addr constant [6 x i8] c"data1\00", align 1
 @ptr = global i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 0), align 4
diff --git a/tools/lli/RecordingMemoryManager.cpp b/tools/lli/RecordingMemoryManager.cpp
index f54f17461e..75cb978130 100644
--- a/tools/lli/RecordingMemoryManager.cpp
+++ b/tools/lli/RecordingMemoryManager.cpp
@@ -82,7 +82,20 @@ void RecordingMemoryManager::endExceptionTable(const Function *F, uint8_t *Table
 void RecordingMemoryManager::deallocateExceptionTable(void *ET) {
   llvm_unreachable("Unexpected!");
 }
+
+static int jit_noop() {
+  return 0;
+}
+
 void *RecordingMemoryManager::getPointerToNamedFunction(const std::string &Name,
                                                         bool AbortOnFailure) {
+  // We should not invoke parent's ctors/dtors from generated main()!
+  // On Mingw and Cygwin, the symbol __main is resolved to
+  // callee's(eg. tools/lli) one, to invoke wrong duplicated ctors
+  // (and register wrong callee's dtors with atexit(3)).
+  // We expect ExecutionEngine::runStaticConstructorsDestructors()
+  // is called before ExecutionEngine::runFunctionAsMain() is called.
+  if (Name == "__main") return (void*)(intptr_t)&jit_noop;
+
   return NULL;
 }