jit: Fix jit_profiling_support when unavailable. jit_profiling_support=true captures profile data for Linux perf. On other platforms, LLVMCreatePerfJITEventListener() returns NULL and the attempt to register the listener would crash.
Fix by ignoring the setting in that case. The documentation already says that it only has an effect if perf support is present, and we already did the same for older LLVM versions that lacked support. No field reports, unsurprisingly for an obscure developer-oriented setting. Noticed in passing while working on commit 1a28b4b4. Backpatch-through: 14 Reviewed-by: Matheus Alcantara <[email protected]> Reviewed-by: Andres Freund <[email protected]> Discussion: https://postgr.es/m/CA%2BhUKGJgB6gvrdDohgwLfCwzVQm%3DVMtb9m0vzQn%3DCwWn-kwG9w%40mail.gmail.com Branch ------ REL_17_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/174bbc06775cbe571184338d530f93707615f953 Modified Files -------------- src/backend/jit/llvm/llvmjit.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
