diff options
Diffstat (limited to 'py/nlrx64.c')
| -rw-r--r-- | py/nlrx64.c | 70 |
1 files changed, 44 insertions, 26 deletions
diff --git a/py/nlrx64.c b/py/nlrx64.c index e7e2e1474..ddcd76166 100644 --- a/py/nlrx64.c +++ b/py/nlrx64.c @@ -26,7 +26,7 @@ #include "py/mpstate.h" -#if MICROPY_NLR_X64 +#if !MICROPY_NLR_SETJMP && defined(__x86_64__) #undef nlr_push @@ -39,6 +39,8 @@ #define NLR_OS_WINDOWS 0 #endif +__attribute__((used)) unsigned int nlr_push_tail(nlr_buf_t *nlr); + unsigned int nlr_push(nlr_buf_t *nlr) { (void)nlr; @@ -86,38 +88,54 @@ unsigned int nlr_push(nlr_buf_t *nlr) { return 0; // needed to silence compiler warning } -NORETURN void nlr_jump_tail(nlr_buf_t *top) { - (void)top; +__attribute__((used)) unsigned int nlr_push_tail(nlr_buf_t *nlr) { + nlr_buf_t **top = &MP_STATE_THREAD(nlr_top); + nlr->prev = *top; + MP_NLR_SAVE_PYSTACK(nlr); + *top = nlr; + return 0; // normal return +} + +void nlr_pop(void) { + nlr_buf_t **top = &MP_STATE_THREAD(nlr_top); + *top = (*top)->prev; +} + +NORETURN void nlr_jump(void *val) { + nlr_buf_t **top_ptr = &MP_STATE_THREAD(nlr_top); + nlr_buf_t *top = *top_ptr; + if (top == NULL) { + nlr_jump_fail(val); + } + + top->ret_val = val; + MP_NLR_RESTORE_PYSTACK(top); + *top_ptr = top->prev; __asm volatile ( + "movq %0, %%rcx \n" // %rcx points to nlr_buf #if NLR_OS_WINDOWS - "movq 88(%rcx), %rsi \n" // load saved %rsi - "movq 80(%rcx), %rdi \n" // load saved %rdr - "movq 72(%rcx), %r15 \n" // load saved %r15 - "movq 64(%rcx), %r14 \n" // load saved %r14 - "movq 56(%rcx), %r13 \n" // load saved %r13 - "movq 48(%rcx), %r12 \n" // load saved %r12 - "movq 40(%rcx), %rbx \n" // load saved %rbx - "movq 32(%rcx), %rsp \n" // load saved %rsp - "movq 24(%rcx), %rbp \n" // load saved %rbp - "movq 16(%rcx), %rax \n" // load saved %rip - #else - "movq 72(%rdi), %r15 \n" // load saved %r15 - "movq 64(%rdi), %r14 \n" // load saved %r14 - "movq 56(%rdi), %r13 \n" // load saved %r13 - "movq 48(%rdi), %r12 \n" // load saved %r12 - "movq 40(%rdi), %rbx \n" // load saved %rbx - "movq 32(%rdi), %rsp \n" // load saved %rsp - "movq 24(%rdi), %rbp \n" // load saved %rbp - "movq 16(%rdi), %rax \n" // load saved %rip + "movq 88(%%rcx), %%rsi \n" // load saved %rsi + "movq 80(%%rcx), %%rdi \n" // load saved %rdr #endif - "movq %rax, (%rsp) \n" // store saved %rip to stack - "xorq %rax, %rax \n" // clear return register - "inc %al \n" // increase to make 1, non-local return + "movq 72(%%rcx), %%r15 \n" // load saved %r15 + "movq 64(%%rcx), %%r14 \n" // load saved %r14 + "movq 56(%%rcx), %%r13 \n" // load saved %r13 + "movq 48(%%rcx), %%r12 \n" // load saved %r12 + "movq 40(%%rcx), %%rbx \n" // load saved %rbx + "movq 32(%%rcx), %%rsp \n" // load saved %rsp + "movq 24(%%rcx), %%rbp \n" // load saved %rbp + "movq 16(%%rcx), %%rax \n" // load saved %rip + "movq %%rax, (%%rsp) \n" // store saved %rip to stack + "xorq %%rax, %%rax \n" // clear return register + "inc %%al \n" // increase to make 1, non-local return "ret \n" // return + : // output operands + : "r"(top) // input operands + : // clobbered registers ); for (;;); // needed to silence compiler warning } -#endif // MICROPY_NLR_X64 +#endif // !MICROPY_NLR_SETJMP && defined(__x86_64__) |