diff options
Diffstat (limited to 'util/oslib-posix.c')
| -rw-r--r-- | util/oslib-posix.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 4d583da7ce..e86fd64e09 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -585,7 +585,7 @@ char *qemu_get_pid_name(pid_t pid) void *qemu_alloc_stack(size_t *sz) { - void *ptr, *guardpage; + void *ptr; int flags; #ifdef CONFIG_DEBUG_STACK_USAGE void *ptr2; @@ -618,17 +618,8 @@ void *qemu_alloc_stack(size_t *sz) abort(); } -#if defined(HOST_IA64) - /* separate register stack */ - guardpage = ptr + (((*sz - pagesz) / 2) & ~pagesz); -#elif defined(HOST_HPPA) - /* stack grows up */ - guardpage = ptr + *sz - pagesz; -#else - /* stack grows down */ - guardpage = ptr; -#endif - if (mprotect(guardpage, pagesz, PROT_NONE) != 0) { + /* Stack grows down -- guard page at the bottom. */ + if (mprotect(ptr, pagesz, PROT_NONE) != 0) { perror("failed to set up stack guard page"); abort(); } |