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authorRonald G. Minnich <rminnich@gmail.com>2013-08-21 16:03:32 -0700
committerIsaac Christensen <isaac.christensen@se-eng.com>2014-08-07 23:55:15 +0200
commit34352d16a96b8096094274dddae98e37939857b9 (patch)
tree570575406d2dfe98d0d0e4b8e11ecabbf87b590e /src/arch
parent0ffa11bdbba48defc55cd38fb2aa2492ca2b5492 (diff)
Possible thread stack implementation.
Architecture provides a function for thread stack base, thread code uses it. Build and boot tested on Falco with multitasking on and off. Change-Id: I5016fab47f9954379acf7702ac7965b0a70c88ed Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://gerrit.chromium.org/gerrit/66578 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Commit-Queue: Ronald G. Minnich <rminnich@chromium.org> Tested-by: Ronald G. Minnich <rminnich@chromium.org> (cherry picked from commit 3c6afef30c1a0ad6fba0fb76acc792184d924247) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6513 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/x86/lib/thread.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arch/x86/lib/thread.c b/src/arch/x86/lib/thread.c
index 06f8a154e2..b1549b5e32 100644
--- a/src/arch/x86/lib/thread.c
+++ b/src/arch/x86/lib/thread.c
@@ -56,3 +56,10 @@ void arch_prepare_thread(struct thread *t,
t->stack_current = stack;
}
+
+void *arch_get_thread_stackbase(void)
+{
+ /* defined in c_start.S */
+ extern u8 thread_stacks[];
+ return &thread_stacks[0];
+}