diff options
Diffstat (limited to 'liblang.asm')
| -rw-r--r-- | liblang.asm | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/liblang.asm b/liblang.asm index 52a68cc..3ae345d 100644 --- a/liblang.asm +++ b/liblang.asm @@ -4,7 +4,7 @@ SYS_READ equ 0x2000003 ;fd, buf, len SYS_WRITE equ 0x2000004 ;fd, buf, len SYS_MMAP equ 0x20000C5 ;addr, len, prot, flags, fd, offset -global start, putc, putint, getc, _builtin_malloc +global start, putc, putint, getc, exit, _builtin_malloc, _builtin_outofbounds default rel extern main @@ -109,6 +109,12 @@ getc: mov rax, -1 jmp .finish +exit: + mov rdi, [rsp+8] + mov eax, SYS_EXIT + syscall + jmp $ + _builtin_malloc: push rdi push rsi @@ -136,6 +142,18 @@ _builtin_malloc: pop rdi ret +_builtin_outofbounds: + mov edi, 2 + lea rsi, [outofbounds_msg] + mov rdx, outofbounds_msg.len + mov eax, SYS_WRITE + syscall + mov edi, 255 + mov eax, SYS_EXIT + syscall + jmp $ + section .data -db 0 ; for dyld +outofbounds_msg: db "Runtime Error: Out-of-bounds array access detected", 10 +.len: equ $ - outofbounds_msg |