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retrocpugeekandClaude Opus 4.8
a4ca725e4e
Extend the record alignment to the legacy getdents path. The kernel rounds both getdents and getdents64 records up to the alignment of their leading d_ino (ALIGN(reclen, sizeof(long))); without it a strict-alignment guest (MIPS) faults walking the buffer, e.g. older glibc busybox 'ls' (which uses the legacy getdents syscall) crashes on directory listings. Legacy linux_dirent stores d_type in the record's last byte (offset d_reclen-1), so the alignment padding goes between d_name and d_type to keep d_type there -- padding without relocating d_type is what got the earlier blanket attempt (PR #1419) reverted. getdents64 (d_type before d_name) is unchanged. Add test_linux_getdents_alignment: walks legacy getdents records on a big-endian MIPS guest and asserts each is aligned, tiles the buffer, and keeps d_type (DT_DIR for '.'/'..'). Runs on stock unicorn. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
This folder includes the testsuite for CI, such as Travis.