svn commit: r352071 - head/sys/conf

Kristof Provost kp at FreeBSD.org
Mon Sep 9 15:57:25 UTC 2019


Author: kp
Date: Mon Sep  9 15:57:24 2019
New Revision: 352071
URL: https://svnweb.freebsd.org/changeset/base/352071

Log:
  riscv: Ensure that BSS is 8-byte aligned
  
  This makes clearing it (from locore.S) work without misaligned accesses
  (which can trap to machine mode, and be slow).
  
  Reviewed by:	br
  Sponsored by:	Axiado
  Differential Revision:	https://reviews.freebsd.org/D21538

Modified:
  head/sys/conf/ldscript.riscv

Modified: head/sys/conf/ldscript.riscv
==============================================================================
--- head/sys/conf/ldscript.riscv	Mon Sep  9 15:37:40 2019	(r352070)
+++ head/sys/conf/ldscript.riscv	Mon Sep  9 15:57:24 2019	(r352071)
@@ -99,7 +99,7 @@ SECTIONS
   /* Ensure __bss_start is associated with the next section in case orphan
      sections are placed directly after .sdata, as has been seen to happen with
      LLD.  */
-  . = .;
+  . = ALIGN(8);
   __bss_start = .;
   .sbss      : { *(.sbss) *(.scommon) }
   .bss       :


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