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bsps/sparc: Unify stack initialization

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Initialize the stacks in start.S in one place and identical to
_CPU_Context_Initialize().
This commit is contained in:
Sebastian Huber
2021-06-10 07:53:04 +02:00
parent 07f6a61d03
commit b823c9843d
1 changed files with 6 additions and 8 deletions
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bsps/sparc/shared/start/start.S
+6 -8
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@@ -306,13 +306,12 @@ SYM(hard_reset):
nop
ld [%g6 + PER_CPU_INTERRUPT_STACK_HIGH], %sp ! set stack pointer
sub %sp, 4, %sp ! stack starts at end of area - 4
andn %sp, 0x0f, %sp ! align stack on 16-byte boundary
andn %sp, CPU_STACK_ALIGNMENT - 1, %sp
sub %sp, SPARC_MINIMUM_STACK_FRAME_SIZE, %sp
mov %sp, %fp ! set frame pointer
mov %g6, %o0
call SYM(bsp_start_on_secondary_processor) ! does not return
sub %sp, SPARC_MINIMUM_STACK_FRAME_SIZE, %sp
mov %g6, %o0
.Lbootcpu:
st %o0, [%o1]
#endif
@@ -326,8 +325,8 @@ SYM(hard_reset):
#endif
set SYM(_ISR_Stack_area_begin), %sp
add %sp, %g5, %sp
sub %sp, 4, %sp ! stack starts at end of area - 4
andn %sp, 0x0f, %sp ! align stack on 16-byte boundary
andn %sp, CPU_STACK_ALIGNMENT - 1, %sp
sub %sp, SPARC_MINIMUM_STACK_FRAME_SIZE, %sp
mov %sp, %fp ! Set frame pointer
nop
@@ -346,8 +345,7 @@ SYM(hard_reset):
bleu,a .Lzerobss
nop
mov %g0, %o0 ! command line
call SYM(boot_card) ! does not return
sub %sp, 0x60, %sp ! room for boot_card to save args
mov %g0, %o0 ! command line
/* end of file */