pitrou commented on PR #41128:
URL: https://github.com/apache/arrow/pull/41128#issuecomment-4603170341
Unfortunately, interposition is not possible anymore with the wheels built
in the Crossbow build above. We see the `call` instruction uses a hardcoded
target address:
```
0000000000b89070
<_ZN5arrow18BaseMemoryPoolImplINS_12_GLOBAL__N_117MimallocAllocatorEE4FreeEPhll.lto_priv.0>:
b89070: 55 push %rbp
b89071: 48 89 d5 mov %rdx,%rbp
b89074: 53 push %rbx
b89075: 48 89 fb mov %rdi,%rbx
b89078: 48 83 ec 08 sub $0x8,%rsp
b8907c: 48 3b 35 cd 47 de 01 cmp 0x1de47cd(%rip),%rsi #
296d850 <_ZN5arrow11memory_pool8internal14zero_size_areaE@@Base-0x3870>
b89083: 74 08 je b8908d
<_ZN5arrow18BaseMemoryPoolImplINS_12_GLOBAL__N_117MimallocAllocatorEE4FreeEPhll.lto_priv.0+0x1d>
b89085: 48 89 f7 mov %rsi,%rdi
b89088: e8 d3 ff ff ff call b89060 <arrow_mi_free>
b8908d: f0 48 29 6b 48 lock sub %rbp,0x48(%rbx)
b89092: 48 83 c4 08 add $0x8,%rsp
b89096: 5b pop %rbx
b89097: 5d pop %rbp
b89098: c3 ret
```
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