#ifdef __x86_64__ /* x64 callee save: bx, bp, sp, r12, r14, r14, r15 */ .file "nlr.s" .text /* uint nlr_push(rdi=nlr_buf_t *nlr) */ #ifndef __apple_build_version__ .globl nlr_push .type nlr_push, @function nlr_push: #else .globl _nlr_push _nlr_push: #endif movq (%rsp), %rax # load return %rip movq %rax, 16(%rdi) # store %rip into nlr_buf movq %rbp, 24(%rdi) # store %rbp into nlr_buf movq %rsp, 32(%rdi) # store %rsp into nlr_buf movq %rbx, 40(%rdi) # store %rbx into nlr_buf movq %r12, 48(%rdi) # store %r12 into nlr_buf movq %r13, 56(%rdi) # store %r13 into nlr_buf movq %r14, 64(%rdi) # store %r14 into nlr_buf movq %r15, 72(%rdi) # store %r15 into nlr_buf movq nlr_top(%rip), %rax # get last nlr_buf movq %rax, (%rdi) # store it movq %rdi, nlr_top(%rip) # stor new nlr_buf (to make linked list) xorq %rax, %rax # return 0, normal return ret # return #ifndef __apple_build_version__ .size nlr_push, .-nlr_push #endif /* void nlr_pop() */ #ifndef __apple_build_version__ .globl nlr_pop .type nlr_pop, @function nlr_pop: #else .globl _nlr_pop _nlr_pop: #endif movq nlr_top(%rip), %rax # get nlr_top into %rax movq (%rax), %rax # load prev nlr_buf movq %rax, nlr_top(%rip) # store prev nlr_buf (to unlink list) ret # return #ifndef __apple_build_version__ .size nlr_pop, .-nlr_pop #endif /* void nlr_jump(rdi=uint val) */ #ifndef __apple_build_version__ .globl nlr_jump .type nlr_jump, @function nlr_jump: #else .globl _nlr_jump _nlr_jump: #endif movq %rdi, %rax # put return value in %rax movq nlr_top(%rip), %rdi # get nlr_top into %rdi movq %rax, 8(%rdi) # store return value movq (%rdi), %rax # load prev nlr_buf movq %rax, nlr_top(%rip) # store prev nlr_buf (to unlink list) movq 72(%rdi), %r15 # load saved %r15 movq 64(%rdi), %r14 # load saved %r14 movq 56(%rdi), %r13 # load saved %r13 movq 48(%rdi), %r12 # load saved %r12 movq 40(%rdi), %rbx # load saved %rbx movq 32(%rdi), %rsp # load saved %rsp movq 24(%rdi), %rbp # load saved %rbp movq 16(%rdi), %rax # load saved %rip movq %rax, (%rsp) # store saved %rip to stack xorq %rax, %rax # clear return register inc %al # increase to make 1, non-local return ret # return #ifndef __apple_build_version__ .size nlr_jump, .-nlr_jump #endif #ifndef __apple_build_version__ .local nlr_top #endif .comm nlr_top,8,8 #endif