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authorJakub Kicinski <kuba@kernel.org>2025-11-20 09:12:41 -0800
committerJakub Kicinski <kuba@kernel.org>2025-11-20 09:13:26 -0800
commit9e203721ec6117b2f4436a26662413764fd669f0 (patch)
tree48895ecf4aa8b80ca78bfc12940e65117574b6e9 /tools/testing/selftests/bpf/progs/stacktrace_ips.c
parent0888a0d76dc20207ed0e7e22aa0f6ad97db90ca5 (diff)
parent8e621c9a337555c914cf1664605edfaa6f839774 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.18-rc7). No conflicts, adjacent changes: tools/testing/selftests/net/af_unix/Makefile e1bb28bf13f4 ("selftest: af_unix: Add test for SO_PEEK_OFF.") 45a1cd8346ca ("selftests: af_unix: Add tests for ECONNRESET and EOF semantics") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/stacktrace_ips.c')
-rw-r--r--tools/testing/selftests/bpf/progs/stacktrace_ips.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/stacktrace_ips.c b/tools/testing/selftests/bpf/progs/stacktrace_ips.c
new file mode 100644
index 000000000000..a96c8150d7f5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/stacktrace_ips.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#ifndef PERF_MAX_STACK_DEPTH
+#define PERF_MAX_STACK_DEPTH 127
+#endif
+
+typedef __u64 stack_trace_t[PERF_MAX_STACK_DEPTH];
+
+struct {
+ __uint(type, BPF_MAP_TYPE_STACK_TRACE);
+ __uint(max_entries, 16384);
+ __type(key, __u32);
+ __type(value, stack_trace_t);
+} stackmap SEC(".maps");
+
+extern bool CONFIG_UNWINDER_ORC __kconfig __weak;
+
+/*
+ * This function is here to have CONFIG_UNWINDER_ORC
+ * used and added to object BTF.
+ */
+int unused(void)
+{
+ return CONFIG_UNWINDER_ORC ? 0 : 1;
+}
+
+__u32 stack_key;
+
+SEC("kprobe.multi")
+int kprobe_multi_test(struct pt_regs *ctx)
+{
+ stack_key = bpf_get_stackid(ctx, &stackmap, 0);
+ return 0;
+}
+
+SEC("raw_tp/bpf_testmod_test_read")
+int rawtp_test(void *ctx)
+{
+ /* Skip ebpf program entry in the stack. */
+ stack_key = bpf_get_stackid(ctx, &stackmap, 0);
+ return 0;
+}
+
+char _license[] SEC("license") = "GPL";