| … | |
… | |
| 1533 | { |
1533 | { |
| 1534 | coro_cctx *cctx = cctx_new (); |
1534 | coro_cctx *cctx = cctx_new (); |
| 1535 | void *stack_start; |
1535 | void *stack_start; |
| 1536 | size_t stack_size; |
1536 | size_t stack_size; |
| 1537 | |
1537 | |
|
|
1538 | #if CORO_FIBER |
|
|
1539 | |
|
|
1540 | cctx->ssize = cctx_stacksize * sizeof (long); |
|
|
1541 | cctx->sptr = 0; |
|
|
1542 | |
|
|
1543 | #else |
|
|
1544 | |
| 1538 | #if HAVE_MMAP |
1545 | #if HAVE_MMAP |
| 1539 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1546 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
| 1540 | /* mmap supposedly does allocate-on-write for us */ |
1547 | /* mmap supposedly does allocate-on-write for us */ |
| 1541 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0); |
1548 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0); |
| 1542 | |
1549 | |
| 1543 | if (cctx->sptr != (void *)-1) |
1550 | if (cctx->sptr != (void *)-1) |
| 1544 | { |
1551 | { |
| 1545 | #if CORO_STACKGUARD |
1552 | #if CORO_STACKGUARD |
| 1546 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1553 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
| 1547 | #endif |
1554 | #endif |
| 1548 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1555 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
| 1549 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1556 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
| 1550 | cctx->flags |= CC_MAPPED; |
1557 | cctx->flags |= CC_MAPPED; |
| 1551 | } |
1558 | } |
| 1552 | else |
1559 | else |
| 1553 | #endif |
1560 | #endif |
| 1554 | { |
1561 | { |
| 1555 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1562 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
| 1556 | New (0, cctx->sptr, cctx_stacksize, long); |
1563 | New (0, cctx->sptr, cctx_stacksize, long); |
| 1557 | |
1564 | |
| 1558 | if (!cctx->sptr) |
1565 | if (!cctx->sptr) |
| 1559 | { |
1566 | { |
| 1560 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1567 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
| 1561 | _exit (EXIT_FAILURE); |
1568 | _exit (EXIT_FAILURE); |
| 1562 | } |
1569 | } |
| 1563 | |
1570 | |
| 1564 | stack_start = cctx->sptr; |
1571 | stack_start = cctx->sptr; |
| 1565 | stack_size = cctx->ssize; |
1572 | stack_size = cctx->ssize; |
| 1566 | } |
1573 | } |
|
|
1574 | #endif |
| 1567 | |
1575 | |
| 1568 | #if CORO_USE_VALGRIND |
1576 | #if CORO_USE_VALGRIND |
| 1569 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
1577 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
| 1570 | #endif |
1578 | #endif |
| 1571 | |
1579 | |
