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Allocate nvtxGlobals_t as small data #1844

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Allocate nvtxGlobals_t as small data #1844

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8 changes: 8 additions & 0 deletions src/include/nvtx3/nvtxDetail/nvtxImpl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,13 @@ extern "C" {
#pragma GCC visibility push(hidden)
#endif

#ifdef __x86_64__
// CUDA blobs released as part of SDK expect some globals to be small
#define CODE_MODEL_SMALL __attribute__((model("small")))
#else
#define CODE_MODEL_SMALL
#endif

/* ---- Forward declare all functions referenced in globals ---- */

NVTX_LINKONCE_FWDDECL_FUNCTION void NVTX_VERSIONED_IDENTIFIER(nvtxInitOnce)(void);
Expand Down Expand Up @@ -173,6 +180,7 @@ typedef struct nvtxGlobals_t
NvtxFunctionPointer* functionTable_SYNC [NVTX_CBID_SYNC_SIZE + 1];
} nvtxGlobals_t;

CODE_MODEL_SMALL
NVTX_LINKONCE_DEFINE_GLOBAL nvtxGlobals_t NVTX_VERSIONED_IDENTIFIER(nvtxGlobals) =
{
NVTX_INIT_STATE_FRESH,
Expand Down