src-test2/libexec/rtld-elf/alpha/rtld_machdep.h, branch stable/4

MFC: ld-elf.so.1 assumed a few too many things about the ordering of sections

2002-09-02T02:10:20Z

produced by ld(8) (ie: that _DYNAMIC immediately follows the _GOT). Update ld.so to deal with the new (faster) PLT format that gcc-3.1 and binutils can produce.

MFC: Use spinlocks + nanosleep for thread locking to make it work

2000-07-12T04:49:06Z

with all threads packages. Revamp data structures to allow non-exclusive locking in most cases. Deprecate dllockinit() and make it a do-nothing stub. Merges in the following deltas: src/libexec/rtld-elf/rtld.c 1.46 src/libexec/rtld-elf/rtld.h 1.18 src/libexec/rtld-elf/alpha/lockdflt.c 1.5 src/libexec/rtld-elf/alpha/rtld_machdep.h 1.4 src/libexec/rtld-elf/alpha/rtld_start.S 1.4 src/libexec/rtld-elf/i386/lockdflt.c 1.5 src/libexec/rtld-elf/i386/rtld_machdep.h 1.4

$Id$ -> $FreeBSD$

1999-08-28T00:22:10Z

Fix a serious performance bug for large programs on the Alpha,

1999-06-25T02:53:59Z

discovered by Hidetoshi Shimokawa. Large programs need multiple GOTs. The lazy binding stub in the PLT can be reached from any of these GOTs, but the dynamic linker only has enough information to fix up the first GOT entry. Thus calls through the other GOTs went through the time-consuming lazy binding process on every call. This fix rewrites the PLT entries themselves to bypass the lazy binding. Tested by Hidetoshi Shimokawa and Steve Price. Reviewed by: Doug Rabson

Eliminate all machine-dependent code from the main source body and

1999-04-09T00:28:43Z

the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.