Commit 6e25bcf0 authored by Jose E. Marchesi's avatar Jose E. Marchesi Committed by Daniel Borkmann
Browse files

bpf_helpers.h: Define bpf_tail_call_static when building with GCC 



The definition of bpf_tail_call_static in tools/lib/bpf/bpf_helpers.h
is guarded by a preprocessor check to assure that clang is recent
enough to support it.  This patch updates the guard so the function is
compiled when using GCC 13 or later as well.

Tested in bpf-next master. No regressions.

Signed-off-by: default avatarJose E. Marchesi <jose.marchesi@oracle.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240426145158.14409-1-jose.marchesi@oracle.com
parent e51b907d

tools/lib/bpf/bpf_helpers.h

+3 −1
Original line number Diff line number Diff line
@@ -137,7 +137,8 @@ 
/*

 * Helper function to perform a tail call with a constant/immediate map slot.

 */

#if __clang_major__ >= 8 && defined(__bpf__)

#if (defined(__clang__) && __clang_major__ >= 8) || (!defined(__clang__) && __GNUC__ > 12)

#if defined(__bpf__)

static __always_inline void

bpf_tail_call_static(void *ctx, const void *map, const __u32 slot)

{
@@ -165,6 +166,7 @@ bpf_tail_call_static(void *ctx, const void *map, const __u32 slot) 
		     : "r0", "r1", "r2", "r3", "r4", "r5");

}

#endif

#endif



enum libbpf_pin_type {

	LIBBPF_PIN_NONE,