[llvm] 7db1d4d - [RuntimeDyld] Fix building on OpenBSD

[Brad Smith via llvm-commits]

Author: Brad Smith
Date: 2022-02-17T12:17:11-05:00
New Revision: 7db1d4d8da4d4dfc5d0240825e8c4d536a12b19c

URL: https://github.com/llvm/llvm-project/commit/7db1d4d8da4d4dfc5d0240825e8c4d536a12b19c
DIFF: https://github.com/llvm/llvm-project/commit/7db1d4d8da4d4dfc5d0240825e8c4d536a12b19c.diff

LOG: [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

Added: 
    

Modified: 
    llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp

Removed: 
    


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diff  --git a/llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp b/llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp
index 21339a3f8f3d8..893d8a55c8950 100644
--- a/llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp
+++ b/llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp
@@ -286,7 +286,7 @@ class TrivialMemoryManager : public RTDyldMemoryManager {
   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 {};
   }