1*c9945492SAndroid Build Coastguard Worker/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */ 2*c9945492SAndroid Build Coastguard Worker.global _longjmp 3*c9945492SAndroid Build Coastguard Worker.global longjmp 4*c9945492SAndroid Build Coastguard Worker.type _longjmp,@function 5*c9945492SAndroid Build Coastguard Worker.type longjmp,@function 6*c9945492SAndroid Build Coastguard Worker_longjmp: 7*c9945492SAndroid Build Coastguard Workerlongjmp: 8*c9945492SAndroid Build Coastguard Worker xor %eax,%eax 9*c9945492SAndroid Build Coastguard Worker cmp $1,%esi /* CF = val ? 0 : 1 */ 10*c9945492SAndroid Build Coastguard Worker adc %esi,%eax /* eax = val + !val */ 11*c9945492SAndroid Build Coastguard Worker mov (%rdi),%rbx /* rdi is the jmp_buf, restore regs from it */ 12*c9945492SAndroid Build Coastguard Worker mov 8(%rdi),%rbp 13*c9945492SAndroid Build Coastguard Worker mov 16(%rdi),%r12 14*c9945492SAndroid Build Coastguard Worker mov 24(%rdi),%r13 15*c9945492SAndroid Build Coastguard Worker mov 32(%rdi),%r14 16*c9945492SAndroid Build Coastguard Worker mov 40(%rdi),%r15 17*c9945492SAndroid Build Coastguard Worker mov 48(%rdi),%rsp 18*c9945492SAndroid Build Coastguard Worker jmp *56(%rdi) /* goto saved address without altering rsp */ 19