src/lib/libc/amd64/sys/vfork.S, branch release/5.3.0_cvs

This commit was manufactured by cvs2svn to create tag

2004-11-04T19:12:42+00:00

'RELENG_5_3_0_RELEASE'.

This commit was manufactured to restore the state of the 5.3-RELEASE image.

Fix some minor whitespace botches

2003-09-04T00:26:40+00:00

Repair PIC mode. It seems I was a bit too excited about the

2003-05-24T17:35:23+00:00

implications of native PC relative addressing.

Update for AMD64 (repocopied from i386/sys/Ovfork.S - why is it O?)

2003-04-30T18:13:13+00:00

Depend on %rsi being preserved across the "syscall"-style syscall and strip
out the PIC stuff (this cpu has full PC-relative addressing, at last!)

Restore CSRG ID's lost in January 1995.

2002-03-23T02:10:28+00:00

Use 'mov' instead of 'lea' for setting the syscall number in %eax as that

2001-11-27T20:51:26+00:00

is clearer about what we are actually doing.

Requested by:	bde

Cleanups after previous change:

2001-11-13T16:58:43+00:00

- Renumber labels since the previous revision removed one.
- Remove useless and wrong comment.
  - Repeating the function name is just redundant.
  - The previous revision made the comment about %edx useless.
  - The comment about %eax was wrong (but did explain why %eax used to be
    fixed up).

Submitted by:	bde

The kernel already fixes up %eax for parents that return from fork, so

2001-11-13T06:36:43+00:00

don't bother manually fixing up %eax for the parent process by testing
the value in %edx and zeroing and already zeroed %eax.

De-orbit DEFS.h - the other arches do not use it, and it got replaced

2001-10-24T20:29:14+00:00

with .

Reviewed by:	bde

Removed duplicate VCS ID tags, as per style(9).

2001-08-13T14:06:34+00:00