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move stack after bss padding

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This commit is contained in:
Elaina Claus
2025-09-18 19:16:27 -04:00
parent 6caaf6aa6d
commit 137735431a
1 changed files with 8 additions and 6 deletions
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14
src/stage2/stage2.nasm
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@@ -453,17 +453,19 @@ align 16, resb 1
%define BIOSMemoryMap_SIZE 1024 %define BIOSMemoryMap_SIZE 1024
BIOSMemoryMap: BIOSMemoryMap:
resb BIOSMemoryMap_SIZE resb BIOSMemoryMap_SIZE
align 16, resb 1
stack_bottom:
resb 2048
stack_top:
end_bss: end_bss:
; !!! End bss data !!!
%define STACK_SIZE 0x1000 ; 4 KiB
; Pad to the cap (emits nothing in the file; only increases .bss virtual size). ; Pad to the cap (emits nothing in the file; only increases .bss virtual size).
; If BSS_SIZE > BSS_MAX_BYTES, this becomes negative and NASM errors out. ; If BSS_SIZE > BSS_MAX_BYTES, this becomes negative and NASM errors out.
%define BSS_MAX_BYTES 0x2000 %define BSS_MAX_BYTES (0x2000 - STACK_SIZE)
resb (BSS_MAX_BYTES - (end_bss - begin_bss)) resb (BSS_MAX_BYTES - (end_bss - begin_bss))
align 16, resb 1
stack_bottom:
resb STACK_SIZE
stack_top:
; Optional: keep a label for later math: ; Optional: keep a label for later math:
bss_cap_end: bss_cap_end: