tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c
Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c- Extension
.c- Size
- 914 bytes
- Lines
- 45
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: implementation source
- Status
- source implementation candidate
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/bpf.hbpf/bpf_helpers.hbpf/bpf_tracing.hstdbool.hbpf_kfuncs.hbpf_misc.h
Detected Declarations
function uprobe_multi_checkfunction uprobe_0function uprobe_1function uprobe_2
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <stdbool.h>
#include "bpf_kfuncs.h"
#include "bpf_misc.h"
char _license[] SEC("license") = "GPL";
__u64 uprobe_session_result[3] = {};
int pid = 0;
static int uprobe_multi_check(void *ctx, int idx)
{
if (bpf_get_current_pid_tgid() >> 32 != pid)
return 1;
uprobe_session_result[idx]++;
/* only consumer 1 executes return probe */
if (idx == 0 || idx == 2)
return 1;
return 0;
}
SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
int uprobe_0(struct pt_regs *ctx)
{
return uprobe_multi_check(ctx, 0);
}
SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
int uprobe_1(struct pt_regs *ctx)
{
return uprobe_multi_check(ctx, 1);
}
SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
int uprobe_2(struct pt_regs *ctx)
{
return uprobe_multi_check(ctx, 2);
}
Annotation
- Immediate include surface: `linux/bpf.h`, `bpf/bpf_helpers.h`, `bpf/bpf_tracing.h`, `stdbool.h`, `bpf_kfuncs.h`, `bpf_misc.h`.
- Detected declarations: `function uprobe_multi_check`, `function uprobe_0`, `function uprobe_1`, `function uprobe_2`.
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.