many changes

- boot time memory allocation has changed. the fractal page map has been
  replaced by a single self-mapped page giving 2MiB of ready virtual
  space to play with without needing a fully-initialized memory manager. this
  scheme may be repeated for other purposes
- the page stack has now been totally overhauled to make use of sparse
  allocation and all of the ugly init_*() procedures are gone. long live
  the new interface. also reference counting is a thing now. sort of.
- found a bug in vmt_init_node where insertion did not use the root node as
  the parent in the case of no predecessor node. whoops.

1 files changed, 7 insertions, 4 deletions

diff --git a/kc/kc.ld b/kc/kc.ld
index dc158f3..76e096a 100644
--- a/kc/kc.ld
+++ b/kc/kc.ld
@@ -35,11 +35,11 @@ SECTIONS
 
     .text : ALIGN(4K)
     {
-        PROVIDE(kc_text_begin = .);
+        PROVIDE_HIDDEN(kc_text_begin = .);
         *(.text.start)
         *(.text)
         . = ALIGN(4K);
-        PROVIDE(kc_text_end = .);
+        PROVIDE_HIDDEN(kc_text_end = .);
     } =0xcc
 
     .dynamic : ALIGN(4K)
@@ -49,7 +49,7 @@ SECTIONS
 
     .data :
     {
-        PROVIDE(kc_data_begin = .);
+        PROVIDE_HIDDEN(kc_data_begin = .);
         *(.rodata)
         *(.data)
     }
@@ -63,9 +63,12 @@ SECTIONS
     .bss :
     {
         *(.bss)
-        PROVIDE(kc_data_end = .);
+        . = ALIGN(4K);
+        PROVIDE_HIDDEN(kc_data_end = .);
     }
 
+    PROVIDE_HIDDEN(kc_image_end = .);
+
     /DISCARD/ :
     {
         *(.eh_frame)