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Fix brino on my part. _etext doesn't include the padding to a page

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boundary, which means that it doesn't mark the start of the data
section (which is then inaccessible to the programmer ??).
Hopefully fixes recent locore reboot problems.
This commit is contained in:
Poul-Henning Kamp 1996-05-09 07:16:00 +00:00
parent fb59e630f6
commit 9f6eb8da71
3 changed files with 9 additions and 3 deletions
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4
sys/amd64/amd64/locore.S
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
* $Id: locore.s,v 1.69 1996/05/02 14:19:43 phk Exp $
* $Id: locore.s,v 1.70 1996/05/02 22:24:55 phk Exp $
*
* originally from: locore.s, by William F. Jolitz
*
@ -740,6 +740,8 @@ over_symalloc:
/* Map read-write, data, bss and symbols */
movl $R(_etext),%eax
addl $PAGE_MASK, %eax
andl $~PAGE_MASK, %eax
map_read_write:
movl R(_KERNend),%ecx
subl %eax,%ecx

4
sys/amd64/amd64/locore.s
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
* $Id: locore.s,v 1.69 1996/05/02 14:19:43 phk Exp $
* $Id: locore.s,v 1.70 1996/05/02 22:24:55 phk Exp $
*
* originally from: locore.s, by William F. Jolitz
*
@ -740,6 +740,8 @@ over_symalloc:
/* Map read-write, data, bss and symbols */
movl $R(_etext),%eax
addl $PAGE_MASK, %eax
andl $~PAGE_MASK, %eax
map_read_write:
movl R(_KERNend),%ecx
subl %eax,%ecx

4
sys/i386/i386/locore.s
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
* $Id: locore.s,v 1.69 1996/05/02 14:19:43 phk Exp $
* $Id: locore.s,v 1.70 1996/05/02 22:24:55 phk Exp $
*
* originally from: locore.s, by William F. Jolitz
*
@ -740,6 +740,8 @@ over_symalloc:
/* Map read-write, data, bss and symbols */
movl $R(_etext),%eax
addl $PAGE_MASK, %eax
andl $~PAGE_MASK, %eax
map_read_write:
movl R(_KERNend),%ecx
subl %eax,%ecx