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Diffstat (limited to 'src/arch/x86/lib/c_start.S')
-rw-r--r--src/arch/x86/lib/c_start.S9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/arch/x86/lib/c_start.S b/src/arch/x86/lib/c_start.S
index 1e38acaf02..c725f82670 100644
--- a/src/arch/x86/lib/c_start.S
+++ b/src/arch/x86/lib/c_start.S
@@ -10,6 +10,11 @@
_stack:
.space CONFIG_MAX_CPUS*CONFIG_STACK_SIZE
_estack:
+#if CONFIG_COOP_MULTITASKING
+.global thread_stacks
+thread_stacks:
+.space CONFIG_STACK_SIZE*CONFIG_NUM_THREADS
+#endif
.section ".textfirst", "ax", @progbits
.code32
@@ -45,6 +50,10 @@ _start:
/* set new stack */
movl $_estack, %esp
+#if CONFIG_COOP_MULTITASKING
+ /* Push the thread pointer. */
+ pushl $0
+#endif
/* Push the cpu index and struct cpu */
pushl $0
pushl $0