diff options
Diffstat (limited to 'cont.c')
-rw-r--r-- | cont.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -769,6 +769,8 @@ fiber_entry(void *arg) #define FIBER_STACK_FLAGS (MAP_PRIVATE | MAP_ANON) #endif +#define ERRNOMSG strerror(errno) + static char* fiber_machine_stack_alloc(size_t size) { @@ -793,13 +795,13 @@ fiber_machine_stack_alloc(size_t size) errno = 0; ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, FIBER_STACK_FLAGS, -1, 0); if (ptr == MAP_FAILED) { - rb_raise(rb_eFiberError, "can't alloc machine stack to fiber: %s", strerror(errno)); + rb_raise(rb_eFiberError, "can't alloc machine stack to fiber: %s", ERRNOMSG); } /* guard page setup */ page = ptr + STACK_DIR_UPPER(size - RB_PAGE_SIZE, 0); if (mprotect(page, RB_PAGE_SIZE, PROT_NONE) < 0) { - rb_raise(rb_eFiberError, "mprotect failed"); + rb_raise(rb_eFiberError, "can't set a guard page: %s", ERRNOMSG); } } |