Remove stray comma.

ok deraadt@, visa@

ld.so boot cleanup support:
- put functions and data which are only used before calling the executable's
start function into their own page-aligned segments for unmapping
(only done on amd64,

ld.so boot cleanup support:
- put functions and data which are only used before calling the executable's
start function into their own page-aligned segments for unmapping
(only done on amd64, arm64, armv7, powerpc, and sparc64 so far)
- pass .init_array and .preinit_array functions an addition argument which
is a callback to get a structure which includes a function that frees
the boot text and data
- sometimes delay doing RELRO processing: for a shared-object marked
DF_1_INITFIRST do it after the object's .init_array, for the executable
do it after the .preinit_array
- improve test-ld.so to link against libpthread and trigger its initialization
late
libc changes to use this will come later

ok kettenis@

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Replace heaps of hand-written syscall stubs with a simpler framework
which is largely MI.
ok visa kettenis

On fatal errors, kill ourselves with thrkill(0,9,NULL) instead of
simply exiting, via helper functions _dl_die(), _dl_diedie(), and
_dl_oom().

prompted by a complaint from jsing@
ok jsing@ deraadt@

ld.so doesn't need gettimeofday or lstat stubs any more

ok deraadt@

Use a Thread Information Block in both single and multi-threaded programs.
This stores errno, the cancelation flags, and related bits for each thread
and is allocated by ld.so or libc.a. This is an

Use a Thread Information Block in both single and multi-threaded programs.
This stores errno, the cancelation flags, and related bits for each thread
and is allocated by ld.so or libc.a. This is an ABI break from 5.9-stable!

Make libpthread dlopen'able by moving the cancelation wrappers into libc
and doing locking and fork/errno handling via callbacks that libpthread
registers when it first initializes. 'errno' *must* be declared via
<errno.h> now!

Clean up libpthread's symbol exports like libc.

On powerpc, offset the TIB/TCB/TLS data from the register per the ELF spec.

Testing by various, particularly sthen@ and patrick@
ok kettenis@

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Rename the system call sendsyslog2 to sendsyslog. Keep the old one
as osendsyslog for a while. The three argument variant is the only
one that will stay.
input kettenis@; OK deraadt@

Switch ld.so's stack smash handler from sendsyslog to sendsyslog2
and pass the LOG_CONS flag like libc's handler.

ok deraadt@ bluhm@ (who had a similar diff)

ldd(1) sets environment variable LD_TRACE_LOADED_OBJECTS to tell ld.so
that it should show information about the program it loads, rather than
run it. In that specific case, ld.so can pledge to "std

ldd(1) sets environment variable LD_TRACE_LOADED_OBJECTS to tell ld.so
that it should show information about the program it loads, rather than
run it. In that specific case, ld.so can pledge to "stdio rpath" to
ensure that code path in ld.so has no bugs.
Yes, a pledge in ld.so.... who'd have thought!
ok guenther

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kbind has eliminated the need for and use of the bind lock. Delete it, the
the callback, and the sigprocmask stub.
Keep around the DL_SETBINDLCK case until libpthread stops using it.

discussed with

kbind has eliminated the need for and use of the bind lock. Delete it, the
the callback, and the sigprocmask stub.
Keep around the DL_SETBINDLCK case until libpthread stops using it.

discussed with miod@ at l2k15
ok kettenis@

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Make bootstrapping code compatible with the Secure-PLT ABI.

ok guenther@

Rename __sysctl syscall to just sysctl, as the userland wrapper is no longer
necessary

ok deraadt@ jsing@

In the lazy binding routine, make sure we actually allocate the stack we need,
instead of corrupting the caller's stack by mistake.

This fixes the mysterious segfaults in __powerpc_read_tcb() report

In the lazy binding routine, make sure we actually allocate the stack we need,
instead of corrupting the caller's stack by mistake.

This fixes the mysterious segfaults in __powerpc_read_tcb() reported on
earlier G3 systems - more recent processors have been luckier...

ok deraadt@

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Now that we have sendsyslog(2), we can directly use it in the
(previously completely retarded) stack_smash_handler of ld.so
ok beck miod tedu

_dl_fcntl() is no longer used; kill the stubs

ok otto@ miod@

move from sysclt(KERN_ARND) to getentropy(2); ok miod@, kettenis@

Implement _dl_mmap as direct mmap(2) wrapper, without needing to use
__syscall(2) - calling convention will conveniently provide the padding
argument.

Add more sugar to build syscall stubs, and turn them from inlines to real
entry points; also, make sure syscall failures return -errno rather than -1.

Make ld.so pass its cleanup handler in r7 as required by the PowerPC System V
ABI, and stop calling atexit(4) directly from ld.so on powerpc.

Fix indentation.

Spell `calculation' correctly.

changes to ld.so to be compatible with newer binutils, requires
slight changes in the startup code on most archs. ok art@ brad@

pefo 3/4 licence cleanups

Initialized the ABI stated 'cleanup' parameter to _start. This parameter
is not used, but is now initialized to a valid value.

knf & ansi; drahn ok