diff options
| author | Michal Idziorek <m.i@gmx.at> | 2014-11-20 04:51:23 +0100 |
|---|---|---|
| committer | Michal Idziorek <m.i@gmx.at> | 2014-11-20 04:51:23 +0100 |
| commit | 1acde03a7c0f85aca9919e374e3df6cee6f0bd08 (patch) | |
| tree | 10ae84ce2693bad62e5c7376cd0c3c40a80c93df /asm | |
| parent | bcab3c0be8ff5fe1db1fac9e01973531cc29f554 (diff) | |
workin on syscall interface etc..
Diffstat (limited to 'asm')
| -rw-r--r-- | asm/int_syscall_handler.asm | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/asm/int_syscall_handler.asm b/asm/int_syscall_handler.asm index 25de51a..e9bc79d 100644 --- a/asm/int_syscall_handler.asm +++ b/asm/int_syscall_handler.asm @@ -4,6 +4,12 @@ global int_syscall_handler [extern syscall_read] [extern syscall_readdir] [extern syscall_execve] +[extern syscall_open] +[extern syscall_close] +[extern syscall_fstat] +[extern syscall_isatty] +[extern syscall_lseek] +[extern syscall_sbrk] [bits 32] int_syscall_handler: @@ -26,6 +32,24 @@ int_syscall_handler: cmp eax, 64 je call_execve + cmp eax, 65 + je call_open + + cmp eax, 66 + je call_close + + cmp eax, 67 + je call_fstat + + cmp eax, 68 + je call_isatty + + cmp eax, 69 + je call_lseek + + cmp eax, 70 + je call_sbrk + done: mov ebx,eax @@ -53,11 +77,37 @@ call_write: call syscall_write jmp done +call_open: + call syscall_open + jmp done + call_readdir: call syscall_readdir jmp done +call_close: + call syscall_close + jmp done + +call_fstat: + call syscall_fstat + jmp done + +call_isatty: + call syscall_isatty + jmp done + +call_lseek: + call syscall_lseek + jmp done + +call_sbrk: + call syscall_sbrk + jmp done + + ;;; THIS CALLS NEED REENABLE INTERRUPTS BEFORE calling workers call_read: + mov al, 0x20 ;Port number AND command number to Acknowledge IRQ out 0x20, al ;Acknowledge IRQ, so we keep getting interrupts sti @@ -67,9 +117,11 @@ call_read: jmp done_blocking call_execve: + mov al, 0x20 ;Port number AND command number to Acknowledge IRQ out 0x20, al ;Acknowledge IRQ, so we keep getting interrupts sti + call syscall_execve jmp $ ; this should never return TODO: pop stack!? |