https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99888
Fangrui Song <i at maskray dot me> changed:
What |Removed |Added
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CC| |i at maskray dot me
--- Comment #5 from Fangrui Song <i at maskray dot me> ---
* There is a restriction on the number of instructions between the function
label and the .localentry directive.
* For -fpatchable-function-entry=N[,M], M nops must precede the function label.
On aarch64/x86/etc, these nops are consecutive. Personally I think this
condition can be lifted for PowerPC ELFv2. The runtime library will need to
check st_other or do some instruction inspection, which may be fine.
nop
nop
nop
foo:
.LCF0:
.cfi_startproc
addis 2,12,.TOC.-.LCF0@ha
addi 2,2,.TOC.-.LCF0@l
.localentry foo,.-foo
nop
nop
