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545de00b4b
libraries are properly unloaded when llvm_shutdown is called.
Summary:
This was mostly affecting usage of the JIT, where storing the library handles in
a set made iteration unordered/undefined. This lead to disagreement between the
JIT and native code as to what the address and implementation of particularly on
Windows with stdlib functions:
JIT: putenv_s("TEST", "VALUE") // called msvcrt.dll, putenv_s
JIT: getenv("TEST") -> "VALUE" // called msvcrt.dll, getenv
Native: getenv("TEST") -> NULL // called ucrt.dll, getenv
Also fixed is the issue of DynamicLibrary::getPermanentLibrary(0,0) on Windows
not giving priority to the process' symbols as it did on Unix.
Reviewers: chapuni, v.g.vassilev, lhames
Reviewed By: lhames
Subscribers: danalbert, srhines, mgorny, vsk, llvm-commits
Differential Revision: https://reviews.llvm.org/D30107
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301153 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
918 B
C++
37 lines
918 B
C++
//===- llvm/unittest/Support/DynamicLibrary/PipSqueak.cxx -----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "PipSqueak.h"
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#include <string>
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struct Global {
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std::string *Str;
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Global() : Str(nullptr) {}
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~Global() {
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if (Str)
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*Str = "Global::~Global";
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}
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};
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struct Local {
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std::string &Str;
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Local(std::string &S) : Str(S) { Str = "Local::Local"; }
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~Local() { Str = "Local::~Local"; }
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};
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static Global Glb;
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extern "C" PIPSQUEAK_EXPORT void SetStrings(std::string &GStr,
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std::string &LStr) {
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static Local Lcl(LStr);
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Glb.Str = &GStr;
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}
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extern "C" PIPSQUEAK_EXPORT const char *TestA() { return "LibCall"; }
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