https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92808
Bug ID: 92808
Summary: GCC sets BTI flag in .note.gnu.property section even
though not all functions are compiled with BTI
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: momchil.velikov at gmail dot com
Target Milestone: ---
When GCC compiles the following source
```
__attribute__((target("branch-protection=pac-ret"))) int f() { return 0; }
__attribute__((target("branch-protection=bti"))) int g() { return 0; }
```
with
aarch64-none-linux-gnu-gcc -c x7.c
the `.note.gnu.property` section has the BTI flag set:
```
$ llvm-readelf --notes x7.o
Displaying notes found at file offset 0x00000090 with length 0x00000020:
Owner Data size Description
GNU 0x00000010 NT_GNU_PROPERTY_TYPE_0 (property note)
Properties: aarch64 feature: BTI
```
IMHO, the flag should be clear, since not all of the functions are compiled
with BTI.
