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- /*
- * Copyright (C) 2013 Imagination Technologies Ltd.
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
- */
- #include <errno.h>
- #include <unistd.h>
- #include <sys/syscall.h>
- libc_hidden_proto(brk)
- /* This must be initialized data because commons can't have aliases. */
- void * __curbrk attribute_hidden = 0;
- int brk (void *addr)
- {
- void *newbrk;
- __asm__ __volatile__ ("MOV D1Re0,%2\n\t"
- "MOV D1Ar1,%1\n\t"
- "SWITCH #0x440001\n\t"
- "MOV %0,D0Re0"
- : "=r" (newbrk)
- : "r" (addr), "K" (__NR_brk)
- : "D0Re0", "D1Re0", "D1Ar1");
- __curbrk = newbrk;
- if (newbrk < addr)
- {
- __set_errno (ENOMEM);
- return -1;
- }
- return 0;
- }
- libc_hidden_def(brk)
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