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authorAndrii Nakryiko <andrii@kernel.org>2022-04-07 23:38:42 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2022-04-08 00:34:15 +0300
commitded6dffaed5edc68f1e64b523353da14db673460 (patch)
tree9ee24f1f0152165d1c2b63dbb8a150a2cfe181a3 /tools/lib/bpf/usdt.c
parente58c5c9717460851047f63b8615ea0760a6f3a2e (diff)
downloadlinux-ded6dffaed5edc68f1e64b523353da14db673460.tar.xz
libbpf: Fix use #ifdef instead of #if to avoid compiler warning
As reported by Naresh: perf build errors on i386 [1] on Linux next-20220407 [2] usdt.c:1181:5: error: "__x86_64__" is not defined, evaluates to 0 [-Werror=undef] 1181 | #if __x86_64__ | ^~~~~~~~~~ usdt.c:1196:5: error: "__x86_64__" is not defined, evaluates to 0 [-Werror=undef] 1196 | #if __x86_64__ | ^~~~~~~~~~ cc1: all warnings being treated as errors Use #ifdef instead of #if to avoid this. Fixes: 4c59e584d158 ("libbpf: Add x86-specific USDT arg spec parsing logic") Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220407203842.3019904-1-andrii@kernel.org
Diffstat (limited to 'tools/lib/bpf/usdt.c')
-rw-r--r--tools/lib/bpf/usdt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/bpf/usdt.c b/tools/lib/bpf/usdt.c
index bb1e88613343..b699e720136a 100644
--- a/tools/lib/bpf/usdt.c
+++ b/tools/lib/bpf/usdt.c
@@ -1178,7 +1178,7 @@ static int calc_pt_regs_off(const char *reg_name)
const char *names[4];
size_t pt_regs_off;
} reg_map[] = {
-#if __x86_64__
+#ifdef __x86_64__
#define reg_off(reg64, reg32) offsetof(struct pt_regs, reg64)
#else
#define reg_off(reg64, reg32) offsetof(struct pt_regs, reg32)
@@ -1193,7 +1193,7 @@ static int calc_pt_regs_off(const char *reg_name)
{ {"rbp", "ebp", "bp", "bpl"}, reg_off(rbp, ebp) },
{ {"rsp", "esp", "sp", "spl"}, reg_off(rsp, esp) },
#undef reg_off
-#if __x86_64__
+#ifdef __x86_64__
{ {"r8", "r8d", "r8w", "r8b"}, offsetof(struct pt_regs, r8) },
{ {"r9", "r9d", "r9w", "r9b"}, offsetof(struct pt_regs, r9) },
{ {"r10", "r10d", "r10w", "r10b"}, offsetof(struct pt_regs, r10) },