tools/testing/selftests/bpf/uprobe_multi.c
Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/uprobe_multi.c
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/bpf/uprobe_multi.c- Extension
.c- Size
- 4452 bytes
- Lines
- 152
- 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.
Dependency Surface
stdio.hstring.hstdbool.hstdint.hsys/mman.hunistd.hsdt.h
Detected Declarations
function __attribute__function benchfunction usdtfunction __attribute__function main
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/mman.h>
#include <unistd.h>
#include <sdt.h>
#ifndef MADV_POPULATE_READ
#define MADV_POPULATE_READ 22
#endif
#ifndef MADV_PAGEOUT
#define MADV_PAGEOUT 21
#endif
int __attribute__((weak)) uprobe(void)
{
return 0;
}
#define __PASTE(a, b) a##b
#define PASTE(a, b) __PASTE(a, b)
#define NAME(name, idx) PASTE(name, idx)
#define DEF(name, idx) int __attribute__((weak)) NAME(name, idx)(void) { return 0; }
#define CALL(name, idx) NAME(name, idx)();
#define F(body, name, idx) body(name, idx)
#define F10(body, name, idx) \
F(body, PASTE(name, idx), 0) F(body, PASTE(name, idx), 1) F(body, PASTE(name, idx), 2) \
F(body, PASTE(name, idx), 3) F(body, PASTE(name, idx), 4) F(body, PASTE(name, idx), 5) \
F(body, PASTE(name, idx), 6) F(body, PASTE(name, idx), 7) F(body, PASTE(name, idx), 8) \
F(body, PASTE(name, idx), 9)
#define F100(body, name, idx) \
F10(body, PASTE(name, idx), 0) F10(body, PASTE(name, idx), 1) F10(body, PASTE(name, idx), 2) \
F10(body, PASTE(name, idx), 3) F10(body, PASTE(name, idx), 4) F10(body, PASTE(name, idx), 5) \
F10(body, PASTE(name, idx), 6) F10(body, PASTE(name, idx), 7) F10(body, PASTE(name, idx), 8) \
F10(body, PASTE(name, idx), 9)
#define F1000(body, name, idx) \
F100(body, PASTE(name, idx), 0) F100(body, PASTE(name, idx), 1) F100(body, PASTE(name, idx), 2) \
F100(body, PASTE(name, idx), 3) F100(body, PASTE(name, idx), 4) F100(body, PASTE(name, idx), 5) \
F100(body, PASTE(name, idx), 6) F100(body, PASTE(name, idx), 7) F100(body, PASTE(name, idx), 8) \
F100(body, PASTE(name, idx), 9)
#define F10000(body, name, idx) \
F1000(body, PASTE(name, idx), 0) F1000(body, PASTE(name, idx), 1) F1000(body, PASTE(name, idx), 2) \
F1000(body, PASTE(name, idx), 3) F1000(body, PASTE(name, idx), 4) F1000(body, PASTE(name, idx), 5) \
F1000(body, PASTE(name, idx), 6) F1000(body, PASTE(name, idx), 7) F1000(body, PASTE(name, idx), 8) \
F1000(body, PASTE(name, idx), 9)
F10000(DEF, uprobe_multi_func_, 0)
F10000(DEF, uprobe_multi_func_, 1)
F10000(DEF, uprobe_multi_func_, 2)
F10000(DEF, uprobe_multi_func_, 3)
F10000(DEF, uprobe_multi_func_, 4)
static int bench(void)
{
F10000(CALL, uprobe_multi_func_, 0)
F10000(CALL, uprobe_multi_func_, 1)
F10000(CALL, uprobe_multi_func_, 2)
F10000(CALL, uprobe_multi_func_, 3)
F10000(CALL, uprobe_multi_func_, 4)
return 0;
}
#define PROBE STAP_PROBE(test, usdt);
#define PROBE10 PROBE PROBE PROBE PROBE PROBE \
PROBE PROBE PROBE PROBE PROBE
#define PROBE100 PROBE10 PROBE10 PROBE10 PROBE10 PROBE10 \
PROBE10 PROBE10 PROBE10 PROBE10 PROBE10
#define PROBE1000 PROBE100 PROBE100 PROBE100 PROBE100 PROBE100 \
PROBE100 PROBE100 PROBE100 PROBE100 PROBE100
#define PROBE10000 PROBE1000 PROBE1000 PROBE1000 PROBE1000 PROBE1000 \
PROBE1000 PROBE1000 PROBE1000 PROBE1000 PROBE1000
static int usdt(void)
{
PROBE10000
PROBE10000
PROBE10000
PROBE10000
Annotation
- Immediate include surface: `stdio.h`, `string.h`, `stdbool.h`, `stdint.h`, `sys/mman.h`, `unistd.h`, `sdt.h`.
- Detected declarations: `function __attribute__`, `function bench`, `function usdt`, `function __attribute__`, `function main`.
- 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.