diff options
Diffstat (limited to 'src/arch/x86/exit_car.S')
| -rw-r--r-- | src/arch/x86/exit_car.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/arch/x86/exit_car.S b/src/arch/x86/exit_car.S index 9b89ffbdf9..d3954d365f 100644 --- a/src/arch/x86/exit_car.S +++ b/src/arch/x86/exit_car.S @@ -35,6 +35,18 @@ post_car_stack_top: .endm #endif +/* Place the stack in the bss section. It's not necessary to define it in the + * the linker script. */ + .section .bss, "aw", @nobits +.global _stack +.global _estack +.global _stack_size + +_stack: +.space CONFIG_STACK_SIZE +_estack: +.set _stack_size, _estack - _stack + .text .global _start _start: @@ -174,8 +186,10 @@ skip_clflush: wrmsr #endif /* CONFIG_SOC_SETS_MSRS */ + movl $_estack, %esp /* Align stack to 16 bytes at call instruction. */ andl $0xfffffff0, %esp + /* Call into main for postcar. */ call main /* Should never return. */ |