tools/testing/selftests/bpf/prog_tests/core_extern.c
Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/prog_tests/core_extern.c
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/bpf/prog_tests/core_extern.c- Extension
.c- Size
- 5476 bytes
- Lines
- 167
- 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
test_progs.hsys/mman.hsys/utsname.hlinux/version.htest_core_extern.skel.h
Detected Declarations
function get_kernel_versionfunction test_core_extern
Annotated Snippet
if (t->fails) {
ASSERT_ERR(err, "skel_load_should_fail");
goto cleanup;
} else if (!ASSERT_OK(err, "skel_load")) {
goto cleanup;
}
err = test_core_extern__attach(skel);
if (!ASSERT_OK(err, "attach_raw_tp"))
goto cleanup;
usleep(1);
t->data.kern_ver = kern_ver;
t->data.missing_val = 0xDEADC0DE;
got = (uint64_t *)skel->data;
exp = (uint64_t *)&t->data;
for (j = 0; j < n; j++) {
ASSERT_EQ(got[j], exp[j], "result");
}
cleanup:
test_core_extern__destroy(skel);
skel = NULL;
}
}
Annotation
- Immediate include surface: `test_progs.h`, `sys/mman.h`, `sys/utsname.h`, `linux/version.h`, `test_core_extern.skel.h`.
- Detected declarations: `function get_kernel_version`, `function test_core_extern`.
- 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.