| #include <asm/unistd.h> |
| #include <machine/asm.h> |
| |
| // void _exit_with_stack_teardown(void* stackBase, int stackSize, int status) |
| ENTRY(_exit_with_stack_teardown) |
| // We can trash %ebx here since this call should never return. |
| // We can also take advantage of the fact that the linux syscall trap |
| // handler saves all the registers, so we don't need a stack to keep |
| // the status argument for exit while doing the munmap */ |
| mov 4(%esp), %ebx // stackBase |
| mov 8(%esp), %ecx // stackSize |
| mov $__NR_munmap, %eax |
| int $0x80 |
| |
| // If munmap failed, we ignore the failure and exit anyway. |
| |
| mov %edx, %ebx // status |
| movl $__NR_exit, %eax |
| int $0x80 |
| |
| // The exit syscall does not return. |
| END(_exit_with_stack_teardown) |
