https://github.com/chenzheng1030 commented:
> So PPC64 can use ELFv2 for Triple::OpenBSD. We probably want to diagnose this
> OS for PPC64, since with ELFv2 we might emit separate local and global entry
> points which means only certain values can be passed to
> -fpatchable-function-entry option.
For targets with ABI elfv2 which means there are dual entries, this patch can
generate expected patchable entry:
For -mtriple=powerpc64-unknown-freebsd-unknown
```
.Ltmp0:
nop
nop
f3: # @f3
.Lfunc_begin0:
.cfi_startproc
.Lfunc_gep0:
addis 2, 12, .TOC.-.Lfunc_gep0@ha
addi 2, 2, .TOC.-.Lfunc_gep0@l
.Lfunc_lep0:
.localentry f3, .Lfunc_lep0-.Lfunc_gep0
# %bb.0: # %entry
nop
```
https://github.com/llvm/llvm-project/pull/92997
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