47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#ifndef _ALLOCA_H
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#include <stdlib/alloca.h>
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# ifndef _ISOMAC
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#include <stackinfo.h>
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#undef __alloca
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/* Now define the internal interfaces. */
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extern void *__alloca (size_t __size);
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#ifdef __GNUC__
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# define __alloca(size) __builtin_alloca (size)
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#endif /* GCC. */
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/* TODO: recall if the underlying conditional has been added just for
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consistency with 'sysdeps/pthread/allocalim.h' or there are some more
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important arguments for that. */
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#if ! defined __LCC__
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extern int __libc_use_alloca (size_t size) __attribute__ ((const));
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#endif
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extern int __libc_alloca_cutoff (size_t size) __attribute__ ((const));
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libc_hidden_proto (__libc_alloca_cutoff)
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#define __MAX_ALLOCA_CUTOFF 65536
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#include <allocalim.h>
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#if defined stackinfo_get_sp && defined stackinfo_sub_sp
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# define alloca_account(size, avar) \
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({ void *old__ = stackinfo_get_sp (); \
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void *m__ = __alloca (size); \
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avar += stackinfo_sub_sp (old__); \
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m__; })
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#else
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# define alloca_account(size, avar) \
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({ size_t s__ = (size); \
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avar += s__; \
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__alloca (s__); })
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#endif
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# endif /* !_ISOMAC */
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#endif
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