[gcc r13-2254] bpf: define __bpf__ as well as __BPF__ as a target macro

[Jose E. Marchesi <jemarch@gcc.gnu.org>]

https://gcc.gnu.org/g:c68b5c078bbf167e6ab84fc230a53580dcc651db

commit r13-2254-gc68b5c078bbf167e6ab84fc230a53580dcc651db
Author: Jose E. Marchesi <jose.marchesi@oracle.com>
Date:   Mon Aug 29 22:13:11 2022 +0200

    bpf: define __bpf__ as well as __BPF__ as a target macro
    
    LLVM defines both __bpf__ and __BPF_ as target macros.
    GCC was defining only __BPF__.
    
    This patch defines __bpf__ as a target macro for BPF.
    Tested in bpf-unknown-none.
    
    gcc/ChangeLog:
    
            * config/bpf/bpf.cc (bpf_target_macros): Define __bpf__ as a
            target macro.

Diff:
---
 gcc/config/bpf/bpf.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/config/bpf/bpf.cc b/gcc/config/bpf/bpf.cc
index 7e37e080808..9cb56cfb287 100644
--- a/gcc/config/bpf/bpf.cc
+++ b/gcc/config/bpf/bpf.cc
@@ -291,6 +291,7 @@ void
 bpf_target_macros (cpp_reader *pfile)
 {
   builtin_define ("__BPF__");
+  builtin_define ("__bpf__");
 
   if (TARGET_BIG_ENDIAN)
     builtin_define ("__BPF_BIG_ENDIAN__");