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25 lines
491 B
C
25 lines
491 B
C
/* brk.c - Change data segment size */
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/* Written 2000 by Werner Almesberger */
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#include <stddef.h>
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#include <unistd.h>
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#include <sys/types.h>
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char *__current_brk; /* Common with sbrk.c */
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/*
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* The Linux brk() isn't what most people expect, so we call the
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* system call __brk() and provide a wrapper.
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*/
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int brk(void *end_data_segment)
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{
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char *new_brk;
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new_brk = __brk(end_data_segment);
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if (new_brk != end_data_segment) return -1;
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__current_brk = new_brk;
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return 0;
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}
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