Author: ian
Date: Sat Apr 1 22:03:00 2017
New Revision: 316377
URL: https://svnweb.freebsd.org/changeset/base/316377
Log:
Correct a comment... the stack used by ubldr is the same stack u-boot was
running on when it jumped to the ubldr entry point. None of the arches
that use this code set up a different stack in their start.S routines.
Modified:
head/sys/boot/uboot/common/main.c
Modified: head/sys/boot/uboot/common/main.c
==============================================================================
--- head/sys/boot/uboot/common/main.c Sat Apr 1 21:55:09 2017
(r316376)
+++ head/sys/boot/uboot/common/main.c Sat Apr 1 22:03:00 2017
(r316377)
@@ -416,7 +416,9 @@ main(int argc, char **argv)
/*
* Initialise the heap as early as possible. Once this is done,
- * alloc() is usable. The stack is buried inside us, so this is safe.
+ * alloc() is usable. We are using the stack u-boot set up near the top
+ * of physical ram; hopefully there is sufficient space between the end
+ * of our bss and the bottom of the u-boot stack to avoid overlap.
*/
uboot_heap_start = round_page((uintptr_t)end);
uboot_heap_end = uboot_heap_start + 512 * 1024;
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
