Files
RedBear-OS/local/recipes/dev/libclc/source/lld/test/ELF/link-open-file.test
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

78 lines
2.4 KiB
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## On Windows co-operative applications can be expected to open LLD's output
## with FILE_SHARE_DELETE included in the sharing mode. This allows us to link
## over the top of an existing file even if it is in use by another application.
# REQUIRES: system-windows, x86
# RUN: echo '.globl _start; _start:' > %t.s
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-unknown %t.s -o %t.o
## FILE_SHARE_READ = 1
## FILE_SHARE_WRITE = 2
## FILE_SHARE_DELETE = 4
# RUN: %python %s %t.o 7 false
# RUN: not %python %s %t.o 3 false 2>&1 | FileCheck %s
# RUN: %python %s %t.o 7 true
# RUN: not %python %s %t.o 3 true 2>&1 | FileCheck %s
# CHECK: error: failed to write output '{{.*}}': {{.*}}
import contextlib
import ctypes
from ctypes import wintypes as w
import os
import shutil
import subprocess
import platform
import sys
import time
object_file = sys.argv[1]
share_flags = int(sys.argv[2])
use_mmap = bool(sys.argv[3])
@contextlib.contextmanager
def open_with_share_flags(filename, share_flags):
GENERIC_READ = 0x80000000
FILE_ATTRIBUTE_NORMAL = 0x80
OPEN_EXISTING = 0x3
INVALID_HANDLE_VALUE = w.HANDLE(-1).value
CreateFileA = ctypes.windll.kernel32.CreateFileA
CreateFileA.restype = w.HANDLE
h = CreateFileA(filename.encode('mbcs'), GENERIC_READ, share_flags,
None, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, None)
assert h != INVALID_HANDLE_VALUE, 'Failed to open ' + filename
try:
yield
finally:
ctypes.windll.kernel32.CloseHandle(h)
## Ensure we have an empty directory for the output.
outdir = os.path.basename(__file__) + '.dir'
if os.path.exists(outdir):
shutil.rmtree(outdir)
os.makedirs(outdir)
## Link on top of an open file.
elf = os.path.join(outdir, 'output_file.elf')
open(elf, 'wb').close()
with open_with_share_flags(elf, share_flags):
args = ['ld.lld.exe', object_file, '-o', elf]
if use_mmap:
args.append("--mmap-output-file")
subprocess.check_call(args)
## Check the linker wrote the output file.
with open(elf, 'rb') as f:
assert f.read(4) == b'\x7fELF', "linker did not write output file correctly"
## Check no temp files are left around.
## It might take a while for Windows to remove them, so loop.
deleted = lambda: len(os.listdir(outdir)) == 1
for _ in range(10):
if not deleted():
time.sleep (1)
assert deleted(), "temp file(s) not deleted after grace period"