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| author | Alexey Gavrilov <alexey.gavrilov@mail.com> | 2025-12-20 19:39:05 +0700 |
|---|---|---|
| committer | Alexey Gavrilov <alexey.gavrilov@mail.com> | 2025-12-20 19:39:05 +0700 |
| commit | a4dea4148157a94a9143dbbd92fdd88b4358676c (patch) | |
| tree | 5d36a0adf4e9f38cee297da6f10e84944d226014 /kernel/boot.s | |
| parent | a72c27d948ee8cf542f8d38c7026876af4875e6b (diff) | |
Global variables initialization implementationlinker_script
User implementation of C runtime library objects (`crti.s` and `crtn.s`)
for initialization (termination functionality are ignored).
Changing files order passed to the linker. Rough order is:
boot.s crti.o crtbegin.o other-link-objects.o crtend.o crtn.o
Signed-off-by: Alexey Gavrilov <alexey.gavrilov@mail.com>
Diffstat (limited to 'kernel/boot.s')
| -rw-r--r-- | kernel/boot.s | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/kernel/boot.s b/kernel/boot.s index 281e1ca..11175af 100644 --- a/kernel/boot.s +++ b/kernel/boot.s @@ -1,11 +1,16 @@ section .text -extern main -extern _estack -global _start:function (_start.end - _start) +extern main, _estack, _init +global _start:function _start: - mov esp, _estack + ; Stack setup + mov eax, _estack + ; Align stack to odd address + and eax, 0xFFFFFFFE + mov esp, eax + + call _init call main cli .hang: hlt jmp .hang -.end: +; .end: |