| 0,0 → 1,40 |
|---|
| |
| .section .init |
| |
| .global __start |
| .global __exit |
| .global __Exit |
| |
| .align 4 |
| __start: |
| movl $68, %eax |
| movl $12, %ebx |
| lea __size_of_stack_reserve__, %ecx |
| addl $4095, %ecx #load stack size |
| andl $-4096, %ecx #align to page granularity |
| int $0x40 #and allocate |
| testl %eax, %eax |
| jz 1f |
| |
| addl %eax, %ecx |
| movl %eax, %fs:4 |
| movl %ecx, %fs:8 #save stack base - low limit |
| #save stack top - high limit |
| movl %ecx, %esp |
| jmp ___crt_startup #reload stack |
| 1: |
| int3 #trap to debugger |
| |
| .ascii "No enough memory for stack allocation" |
| |
| .align 4 |
| __exit: |
| __Exit: |
| movl 4(%esp), %edx #store exit code |
| movl $68, %eax |
| movl $13, %ebx |
| movl %fs:4, %ecx |
| int $0x40 #destroy stack |
| |
| movl $-1, %eax |
| int $0x40 #terminate thread |