On 2025-09-16 07:36, Steffen Nurpmeso wrote:
My enthusiasm is hereby extinct
Yeah, it's really hard to figure out what went wrong, given that all we
have is a stripped executable that may not have be built correctly for
whatever reason. One possibility is some low-level problem with the
dynamic linker. So you can ignore the rest of this email if you like.
at copy.c:3106 since i see
unlinkat
readlink@plt
symlinkat@plt
free
lstat@plt [hmm where; lchownat fallback?]
It could be from lib/fchownat.c:106, if CHOWN_TRAILING_SLASH_BUG is
defined. However, I'd be surprised if this were the case, as glibc
doesn't have that bug as far as I know.
lstat64
fstatat64
lchown@plt
lchown
Thereafter only 10 "??" stepi in between resolved lchown and
lchmod@plt
fchmodat
If 'cp' was linked correctly, I don't see any way there could be only 10
insns between resolved lchown (presumably called from src/copy.c:3152
via lib/openat.h:77) and any call to lchmod/fchmodat.
