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[Support][Cygwin] Fix handling of Process symbol lookup. #143072

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Merged
merged 3 commits into from
Jun 9, 2025
Merged

[Support][Cygwin] Fix handling of Process symbol lookup. #143072

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929527a
[Support][Cygwin] Fix handling of Process symbol lookup.
jeremyd2019 Jun 6, 2025
67456ef
Initialize Process to &Invalid instead of nullptr, so an additional b…
jeremyd2019 Jun 7, 2025
7c658e7
fixup! Initialize Process to &Invalid instead of nullptr, so an addit…
jeremyd2019 Jun 7, 2025
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6 changes: 4 additions & 2 deletions llvm/lib/Support/DynamicLibrary.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ class DynamicLibrary::HandleSet {
typedef std::vector<void *> HandleList;
HandleList Handles;
void *Process = nullptr;
bool ProcessAdded = false;

public:
static void *DLOpen(const char *Filename, std::string *Err);
Expand Down Expand Up @@ -66,6 +67,7 @@ class DynamicLibrary::HandleSet {
}
#endif
Process = Handle;
ProcessAdded = true;
}
return true;
}
Expand Down Expand Up @@ -97,11 +99,11 @@ class DynamicLibrary::HandleSet {
assert(!((Order & SO_LoadedFirst) && (Order & SO_LoadedLast)) &&
"Invalid Ordering");

if (!Process || (Order & SO_LoadedFirst)) {
if (!ProcessAdded || (Order & SO_LoadedFirst)) {
if (void *Ptr = LibLookup(Symbol, Order))
return Ptr;
}
if (Process) {
if (ProcessAdded) {
// Use OS facilities to search the current binary and all loaded libs.
if (void *Ptr = DLSym(Process, Symbol))
return Ptr;
Expand Down
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