1 | #ifndef _ALLOCA_H |
2 | |
3 | #include <stdlib/alloca.h> |
4 | |
5 | # ifndef _ISOMAC |
6 | |
7 | #include <stackinfo.h> |
8 | |
9 | #undef __alloca |
10 | |
11 | /* Now define the internal interfaces. */ |
12 | extern void *__alloca (size_t __size); |
13 | |
14 | #ifdef __GNUC__ |
15 | # define __alloca(size) __builtin_alloca (size) |
16 | #endif /* GCC. */ |
17 | |
18 | extern int __libc_use_alloca (size_t size) __attribute__ ((const)); |
19 | extern int __libc_alloca_cutoff (size_t size) __attribute__ ((const)); |
20 | libc_hidden_proto (__libc_alloca_cutoff) |
21 | |
22 | #define __MAX_ALLOCA_CUTOFF 65536 |
23 | |
24 | #include <allocalim.h> |
25 | |
26 | #if defined stackinfo_get_sp && defined stackinfo_sub_sp |
27 | # define alloca_account(size, avar) \ |
28 | ({ void *old__ = stackinfo_get_sp (); \ |
29 | void *m__ = __alloca (size); \ |
30 | avar += stackinfo_sub_sp (old__); \ |
31 | m__; }) |
32 | #else |
33 | # define alloca_account(size, avar) \ |
34 | ({ size_t s__ = (size); \ |
35 | avar += s__; \ |
36 | __alloca (s__); }) |
37 | #endif |
38 | |
39 | # endif /* !_ISOMAC */ |
40 | #endif |
41 | |