crt0 uses a helper function in a MD src/libexec/ld.so .h file (rather than
reproducing the relevant defines and code in a different place) to perform
minor relocations. If things go very wrong, it w

crt0 uses a helper function in a MD src/libexec/ld.so .h file (rather than
reproducing the relevant defines and code in a different place) to perform
minor relocations. If things go very wrong, it would call _dl_exit() --
a locally defined crt0 function which is syscall exit(2). We don't need
to call exit(2) for this obscure case which doesn't happen and provides no
debugging information. An 'abort' is going to provide better information.
So let's change the function name to _dso_abort() and make it a single
illegal instruction.
ok guenther

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Nothing depends on archdep.h pulling in other #includes anymore,
so delete the #includes and hide the RELOC_* functions that are
only used by lib/csu behind "#ifdef RCRT0"

these are the ones I teste

Nothing depends on archdep.h pulling in other #includes anymore,
so delete the #includes and hide the RELOC_* functions that are
only used by lib/csu behind "#ifdef RCRT0"

these are the ones I tested; kettenis@ was on board with the concept

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Delete all the no-op RELOC_GOT() macros and their uses.
Annotate RELOC_DYN() on non-hppa as only used in lib/csu.
Delete some inconsistent comments, adjust whitespace, and reorder
mips64's archdep.

Delete all the no-op RELOC_GOT() macros and their uses.
Annotate RELOC_DYN() on non-hppa as only used in lib/csu.
Delete some inconsistent comments, adjust whitespace, and reorder
mips64's archdep.h so that the ld.so/*/archdep.h files look
(almost) the same.

ok visa@ kettenis@

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Prefer the size-independent ELF identifiers over the size-specific ones.
Strip superfluous parens from return statements while here.

Done programatically with two perl invocations

idea ok kettenis@

Prefer the size-independent ELF identifiers over the size-specific ones.
Strip superfluous parens from return statements while here.

Done programatically with two perl invocations

idea ok kettenis@ drahn@
ok visa@

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Use <elf.h> instead of <elf_abi.h>

ok jasper@, jca@, deraadt@

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@

_dl_exit() is __dead, so it should return void.
Move _dl_mmap() and _dl_mquery() inlines from archdep.h to syscall.h and
remove pointless casts and unnecessary parens.

ok kettenis@

Delete ancient macros and unnecessary #includes

ok deraadt@

Remove dependency on __got_{start,end} symbols and look at PT_GNU_RELRO
instead. Result in a few more pages that aren't writable on some platforms
(such as hppa). Based on an initial diff from guen

Remove dependency on __got_{start,end} symbols and look at PT_GNU_RELRO
instead. Result in a few more pages that aren't writable on some platforms
(such as hppa). Based on an initial diff from guenther@.

Thanks to deraadt@ for testing.

ok guenther@

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fix types for mmap wrappers. A few whitespace cleanups snuck in.
ok guenther

Simplify the relocation code for the ld.so bootstrap and static pie: track
just the dynamic tags are needed instead of reusing the generic elf_object_t
structure.

testing and feedback from miod@
ok

Simplify the relocation code for the ld.so bootstrap and static pie: track
just the dynamic tags are needed instead of reusing the generic elf_object_t
structure.

testing and feedback from miod@
ok kettenis@

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self-relocating crt0 bits for sh, and enable static pie by default. With some
archdep.h help from kettenis@

No need to redefine DT_PROCNUM and DT_BIND_NOW here, these are provided by MI
<elf_abi.h>.

Fix handling of hppa RELOC_IPLT relocations during 'bootstrap relocation'.

ok miod@, deraadt@, jsing@

Not quite working ld.so support for sh