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bpf_helpers.h: Define bpf_tail_call_static when building with GCC

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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: Jose E. Marchesi <jose.marchesi@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240426145158.14409-1-jose.marchesi@oracle.com
This commit is contained in:
Jose E. Marchesi
2024-04-26 16:51:58 +02:00
committed by Andrii Nakryiko
parent 43df08cd17
commit b1051d9361
1 changed files with 3 additions and 1 deletions
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4
src/bpf_helpers.h
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@@ -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,