Every import lookup walked the lease out from the containing range to find
the run of continuing registry ranges, which is linear in the run length.
That walk depends only on the lease snapshot, the containing range and the
import window block, so its first and last index are now memoized per
thread under a weak reference to the snapshot, the range index, the window
and the window's low end. APS5_NO_RUN_MEMO walks every time.
Everything that depends on other state runs on each call as before: the
largest size, the budget, the failed blocks, the remembered refusals and
the halving block search. importRunBounds returns the chosen indices, so
sameRange, runCovers and the whole-run lookup in importAllocation compare
against the lease without copying the run's range pointers.
importRunFailureShrinkTests records a failed 8 MiB block between two
lookups on an unchanged registry and requires the run to shrink to its
4 MiB blocks. importRunGrowthTests and importRunReplacedTests check that a
run grows and shrinks when its ranges are registered or replaced.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
mazen320 read KfcTPbeaOqg from the console's libSceLibcInternal.sprx
symbol table: an object of 136 bytes, 17 pointer slots. Export that
size instead of the 15 derived from Dinkumware's crt.vc12 xlocnum, and
say in the debt entry that which two virtual functions are added is
not known.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Resolves the conflict with #8867 in EntryStubTests.cpp: keep its two
kernel-variant tests and the BufferUtils include, and this branch's
libSceAmpr-to-libc fallback test, with all three called from main.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
FreeBSD 11.4 vsnprintf checks the size minus the terminator against INT_MAX
before formatting and, when it is larger, sets errno to EOVERFLOW, writes a
terminator to the buffer and returns EOF (lib/libc/stdio/vsnprintf.c:61-67).
The guest formatted into the buffer and returned the length.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Two threads writing to the same stream each ran FileStream::SyncStatus
after their stdio call, outside the FILE lock, with plain writes to the
read and write counters and a read-modify-write of the flag word, so the
flags of one thread could be lost. Publish the counters with atomic
stores and the flags with a compare-exchange loop; the values stay the
same.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
FreeBSD 11 fopen opens the path with _open, and vn_open_vnode refuses a
directory only for FWRITE or O_TRUNC, so fopen of a directory in a read
mode succeeds; Linux hosts already open it. On Windows CreateFileW
without FILE_FLAG_BACKUP_SEMANTICS refused it with EACCES.
fopen now opens such a path as a libkernel directory descriptor, which
libkernel registers in libc when it loads, and fclose and freopen remove
it from libkernel's table. Reads on the stream fail with EISDIR and set
the error indicator, as on a Linux host and FreeBSD's tmpfs: the Windows
CRT fails them already but reports EINVAL. Writes fail with EBADF, and
fseek, ftell and ungetc work, as on any read-only stream.
Trimming every trailing separator turned the Windows drive root "C:\" into
the drive-relative "C:". Trim only while the parent is longer than its
root_path(), and cover "/", "C:\" and "C:/" in guest_filesystem.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
RenameDotError_nid_no_patch resolved the parent with the separator kept
("file/"). On Linux std::filesystem::exists("file/") is false for a regular
file, so unlink, rmdir and rename of "file/." answered ENOENT instead of
ENOTDIR. Trim the trailing separators first (a lone "/" stays) and cover
rename of "file/." and "file/.." in guest_filesystem.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Adrià