ld.elf_so: Fix one more mistake in handling _rtld_load_object.
This can return NULL (meaning object not found or something went wrong
with the object) or OBJ_ERR (meaning the object has DF_1_NOOPEN set or
the caller passed RTLD_NOLOAD to dlopen() and the object was not
already loaded) or a valid object.
I reviewed all paths out of _rtld_load_object to make sure they
gracefully handle all three cases (NULL, OBJ_ERR, valid object), and
this assertion was the only path that didn't.
Fixes buggy assertion added for:
PR lib/59751: dlclose is not MT-safe depending on the libraries
unloaded
May fix:
PR bin/60472: ld.elf_so(1) changes cause a segmentation fault in
dlopen(3)
ld.elf_so: Mark new variables __debugused, not __diagused.
They are used in ld.elf_so builds with DEBUG, not with DIAGNOSTIC!
PR bin/60469: bin/60469: assertion "ALIGNED_P(q, obj->tlsalign)"
failed: file "/usr/src/libexec/ld.elf_so/tls.c", line 333
ld.elf_so: Fix static TLS alignment on variant II platforms.
Only affects obscure architectures like x86, though.
Sprinkle assertions to make sure this breaks in other ways on other
architectures too, like variant I, or variant II with _lwp_gettcb().
Fair's fair, right?
XXX We should consider verifying that every Elf_Phdr::p_align is
reasonable (i.e., is a power of two, or is zero but only if p_memsz
is also zero), and that p_filesz <= p_memsz, in headers.c for the
main object and in map_object.c for other objects.
PR bin/60469: bin/60469: assertion "ALIGNED_P(q, obj->tlsalign)"
failed: file "/usr/src/libexec/ld.elf_so/tls.c", line 333
On second thought, don't use __mc68010__ throughout as a proxy for
"is a Sun-2"; it's too easy to glance-misread #ifdef vs #ifndef.
Instead, define IS_SUN2 and IS_SUN3 macros that statically evaluate
to the right thing and use them throughout.
Pull up following revision(s) (requested by riastradh in ticket #391):
libexec/ld.elf_so/rtld.c: revision 1.228
libexec/ld.elf_so/xmalloc.c: revision 1.27
ld.elf_so: Fix reversed sense of previous change to ASSERT macro.
Had tested the part of the change replacing botch("p") by botch(#p);
then didn't test the change from `if (!(p)) botch(#p)' to
`(__predict_false(p) ? botch(#p) : (void)0)'. Oops.
Now I have tested this with MALLOC_DEBUG enabled in ld.elf_so.
PR lib/59751: dlclose is not MT-safe depending on the libraries
unloaded
ld.elf_so: Set _rtld_objself.refcount = 1.
This is the object for ld.elf_so itself. It can be opened with
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Pull up following revision(s) (requested by kre in ticket #390):
external/mit/xorg/lib/driver.old.mk: revision 1.3
external/mit/xorg/lib/driver.mk: revision 1.10
PR xsrc/59858 (locale fixes for xsrc)
From RVP - see the PR
Oversimplifying: this causes Mesa to use LC_NUMERIC=C when using
strtod() to parse stuff (ie: the radix char (decimal point) is '.',
regardless of the user's locale).
Pull up following revision(s) (requested by kre in ticket #389):
usr.bin/xinstall/xinstall.c: revision 1.131
PR bin/58577 - install(1) -d issues
Fix issues where "install -d" (with no directory) simply
exit(0)s. That one is kind of marginal, installing nothing
when nothing is needed could be treated as OK, but the man
page does indicate in the SYNOPSIS that with -d, at least
one directory is needed (it says nothing at all about that
in the text).
Second, after creating a directory, if a later operation
(chown, chmod) fails, that is not success, a warning was
issued (good), a bad metalog was being created (bad).
That is clearly a bug (though probably doesn't happen
very often).
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Pull up following revision(s) (requested by kre in ticket #388):
lib/libc/locale/runetable.c: revision 1.30
lib/libc/locale/iswctype_mb.c: revision 1.15
PR lib/59067 (wctrans got error member)
Patches from the OP (ru_j217) and from RVP - see the PR
This looks to be just correcting what appear to be simple
errors in the code.
ld.elf_so: Fix assertion: obj may be NULL _or_ OBJ_ERR (-1) here
NULL means the object wasn't found and we should keep searching;
OBJ_ERR means the object was found but loading it failed and we
should stop. Only if the object is _neither_ NULL _nor_ OBJ_ERR is
it expected to be an object with positive refcount.
Followup for
PR lib/59751: dlclose is not MT-safe depending on the libraries
unloaded
