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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113039] New: [14 Regression] -fcf-protection
 -fcf-protection=branch doesn't work
Date: Sat, 16 Dec 2023 02:04:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113039

            Bug ID: 113039
           Summary: [14 Regression] -fcf-protection -fcf-protection=3Dbranch
                    doesn't work
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: crazylht at gmail dot com
  Target Milestone: ---
            Target: x86-64

[hjl@gnu-cfl-3 pr85334]$ touch x.c
[hjl@gnu-cfl-3 pr85334]$
/export/build/gnu/tools-build/gcc-gitlab-debug/release/usr/gcc-14.0.0-x86-6=
4/bin/gcc
-c -fcf-protection -fcf-protection=3Dbranch x.c
[hjl@gnu-cfl-3 pr85334]$ readelf -n x.o

Displaying notes found in: .note.gnu.property
  Owner                Data size        Description
  GNU                  0x00000010       NT_GNU_PROPERTY_TYPE_0
      Properties: x86 feature: IBT, SHSTK
  GNU                  0x00000020       NT_GNU_PROPERTY_TYPE_0
      Properties: x86 ISA used:=20
        x86 feature used: x86
[hjl@gnu-cfl-3 pr85334]$=20

-fcf-protection=3Dbranch should override -fcf-protection.=