code review 2512041: 5l, 6l, 8l: accumulate data image during import

5l, 6l, 8l: accumulate data image during import

Using explicit relocations internally, we can
represent the data for a particular symbol as
an initialized block of memory instead of a
linked list of ADATA instructions.  The real
goal here is to be able to hand off some of the
relocations to the dynamic linker when interacting
with system libraries, but a pleasant side effect is
that the memory image is much more compact
than the ADATA list, so the linkers use less memory.

[rsc, 2010-10-15 03:48:37]

Hello ken2 (cc: golang-dev@googlegroups.com),

I'd like you to review this change.

[rsc, 2010-10-15 03:48:51]

*** Submitted as 70ed048caad2 ***

5l, 6l, 8l: accumulate data image during import

Using explicit relocations internally, we can
represent the data for a particular symbol as
an initialized block of memory instead of a
linked list of ADATA instructions.  The real
goal here is to be able to hand off some of the
relocations to the dynamic linker when interacting
with system libraries, but a pleasant side effect is
that the memory image is much more compact
than the ADATA list, so the linkers use less memory.

R=ken2
CC=golang-dev
http://codereview.appspot.com/2512041

[ken3, 2010-10-20 23:04:51]

lgtm