denshooter/genode
1
0
Fork 0
mirror of https://github.com/mmueller41/genode.git synced 2026-01-21 20:42:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

hw: clrex during context switch (Fixes #1196)

Browse Source
This commit is contained in:
Stefan Kalkowski
2014-08-27 11:00:24 +02:00
committed by Christian Helmuth
parent eedddeced1
commit 0ffc89ee30
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
repos/base-hw/src/core/spec/arm_v7/mode_transition.s
View File

@@ -369,6 +369,13 @@
add sp, sp, #PSR_OFFSET
stm sp, {r0, r1}
/*
* Clear exclusive access in local monitor,
* as we use strex/ldrex in our cmpxchg method, we've to do this during
* a context switch (ARM Reference Manual paragraph 3.4.4.)
*/
clrex
/*********************************************************
** Kernel-entry code that is common for all exceptions **
*********************************************************/