diff options
Diffstat (limited to 'libc/sysdeps/linux/common/bits/uClibc_alloc.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/uClibc_alloc.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/uClibc_alloc.h b/libc/sysdeps/linux/common/bits/uClibc_alloc.h new file mode 100644 index 000000000..6a70d27b7 --- /dev/null +++ b/libc/sysdeps/linux/common/bits/uClibc_alloc.h @@ -0,0 +1,26 @@ +/* + * Macros to transparently switch between the stack and heap for large + * allocations. The former is useful on MMU systems as it results in + * smaller code, but the latter is required on NoMMU systems. This is + * due to small stacks that cannot grow and so doing large allocs will + * cause a stack overflow. + * + * Copyright (C) 2010 Mike Frysinger <vapier@gentoo.org> + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _UCLIBC_ALLOC_H +#define _UCLIBC_ALLOC_H + +#include <alloca.h> +#include <stdlib.h> + +#ifdef __ARCH_USE_MMU__ +# define stack_heap_alloc(x) alloca(x) +# define stack_heap_free(x) do { if (0) free(x); } while (0) +#else +# define stack_heap_alloc(x) malloc(x) +# define stack_heap_free(x) free(x) +#endif + +#endif |