diff options
| author | Loic Guegan <manzerbredes@mailbox.org> | 2021-05-04 15:30:24 +0200 |
|---|---|---|
| committer | Loic Guegan <manzerbredes@mailbox.org> | 2021-05-04 15:30:24 +0200 |
| commit | 1530a85d5aefcf6497ff2129023e9a0b002603dd (patch) | |
| tree | ea6098d0dcafabba0ffc2f28ea5c136f731996b9 /src/core/int.S | |
| parent | 64a17f3e0683a0a492a3fed9c4c17a4335d1f421 (diff) | |
Solving many issues: Aligning kernel stack, improve syscall mechanism,
DISABLING RED-ZONE !!!!
Diffstat (limited to 'src/core/int.S')
| -rw-r--r-- | src/core/int.S | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/src/core/int.S b/src/core/int.S index c8612dc..c552212 100644 --- a/src/core/int.S +++ b/src/core/int.S @@ -26,18 +26,29 @@ push %rbp push %rsi push %rdi - mov %ds, %rax + xor %rax,%rax # Because I am picky + mov %gs, %rax + push %rax + mov %es, %rax push %rax - mov 56(%rsp), %rax # Restore %rax + mov %fs, %rax + push %rax + mov %ds, %rax push %rax mov $0x10, %ax mov %ax, %ds - pop %rax + mov 80(%rsp), %rax .endm .macro RESTORE_REGS pop %rax - mov %rax,%ds + mov %ax, %ds + pop %rax + mov %ax, %fs + pop %rax + mov %ax, %es + pop %rax + mov %ax, %gs pop %rdi pop %rsi pop %rbp @@ -77,6 +88,7 @@ INT_10: .globl INT_14 INT_14: + pop %rsi CALL_PRINTK $MSG_INT_14 INT_14_INFINITE: jmp INT_14_INFINITE @@ -113,7 +125,7 @@ MSG_INT_0: MSG_INT_10: .asciz "Invalid TSS!" MSG_INT_14: -.asciz "Page fault!" +.asciz "Page fault: error %x !" MSG_INT_KBD: .asciz "Key press!" MSG: |