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[RuntimeDyld] Fix building on OpenBSD 

With https://reviews.llvm.org/D105466 the tree does not build on OpenBSD/amd64.
Moritz suggested only building this code on Linux.

Reviewed By: MoritzS

Differential Revision: https://reviews.llvm.org/D119991
This commit is contained in:
Brad Smith 2022-02-17 12:09:21 -05:00
parent 7eb3ce997a
commit 7db1d4d8da
1 changed files with 3 additions and 3 deletions
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6
llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp
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@ -286,7 +286,7 @@ private:
uintptr_t SlabSize = 0;
uintptr_t CurrentSlabOffset = 0;
SectionIDMap *SecIDMap = nullptr;
#if defined(__x86_64__) && defined(__ELF__)
#if defined(__x86_64__) && defined(__ELF__) && defined(__linux__)
unsigned UsedTLSStorage = 0;
#endif
};
@ -350,7 +350,7 @@ uint8_t *TrivialMemoryManager::allocateDataSection(uintptr_t Size,
// In case the execution needs TLS storage, we define a very small TLS memory
// area here that will be used in allocateTLSSection().
#if defined(__x86_64__) && defined(__ELF__)
#if defined(__x86_64__) && defined(__ELF__) && defined(__linux__)
extern "C" {
alignas(16) __attribute__((visibility("hidden"), tls_model("initial-exec"),
used)) thread_local char LLVMRTDyldTLSSpace[16];
@ -361,7 +361,7 @@ TrivialMemoryManager::TLSSection
TrivialMemoryManager::allocateTLSSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID,
StringRef SectionName) {
#if defined(__x86_64__) && defined(__ELF__)
#if defined(__x86_64__) && defined(__ELF__) && defined(__linux__)
if (Size + UsedTLSStorage > sizeof(LLVMRTDyldTLSSpace)) {
return {};
}