lidavidm commented on PR #35090:
URL: https://github.com/apache/arrow/pull/35090#issuecomment-1508224236
Ah, this gets lldb to recognize it:
```
(lldb) image lookup -v -s grpc_core::ExecCtx::exec_ctx_ libgrpc.29.dylib
1 symbols match 'grpc_core::ExecCtx::exec_ctx_' in
/private/tmp/verify-tmp/mambaforge/envs/conda-source/lib/libgrpc.29.dylib:
Address: libgrpc.29.dylib[0x00000000003db9b8]
(libgrpc.29.dylib.__DATA.__thread_vars + 264)
Summary: libgrpc.29.dylib`grpc_core::ExecCtx::exec_ctx_
Module: file =
"/private/tmp/verify-tmp/mambaforge/envs/conda-source/lib/libgrpc.29.dylib",
arch = "x86_64"
Symbol: id = {0x000036f2}, range =
[0x00000001014019b8-0x00000001014019d0), name="grpc_core::ExecCtx::exec_ctx_",
mangled="_ZN9grpc_core7ExecCtx9exec_ctx_E"
(lldb) print _ZN9grpc_core7ExecCtx9exec_ctx_E
(void *) $0 = 0x00007ff800bd743c
```
lldb says they're the same:
```
(lldb) t 1
* thread #1, queue = 'com.apple.main-thread'
frame #0: 0x00007ff800bcb889 libsystem_pthread.dylib`pthread_mutex_lock
+ 11
libsystem_pthread.dylib`pthread_mutex_lock:
-> 0x7ff800bcb889 <+11>: jne 0x7ff800bcb8fe ; <+128>
0x7ff800bcb88b <+13>: movl 0xc(%rdi), %eax
0x7ff800bcb88e <+16>: movl %eax, %ecx
0x7ff800bcb890 <+18>: andl $0x1c0, %ecx ; imm = 0x1C0
(lldb) print _ZN9grpc_core7ExecCtx9exec_ctx_E
(void *) $1 = 0x00007ff800bd743c
```
But I wonder if it recognizes thread locals properly.
That said, this seems to mostly be a gRPC problem...
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