diff options
Diffstat (limited to 'libc/sysdeps/linux/metag/bits/setjmp.h')
-rw-r--r-- | libc/sysdeps/linux/metag/bits/setjmp.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/metag/bits/setjmp.h b/libc/sysdeps/linux/metag/bits/setjmp.h new file mode 100644 index 000000000..8ad4b12d2 --- /dev/null +++ b/libc/sysdeps/linux/metag/bits/setjmp.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2013, Imagination Technologies Ltd. + * + * Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball. + */ + +/* Define the machine-dependent type `jmp_buf' */ +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#if !defined _SETJMP_H && !defined _PTHREAD_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +/* + jmp_buf[0] - A0StP + jmp_buf[1] - A1GbP + jmp_buf[2] - A0FrP + jmp_buf[3] - A1LbP + jmp_buf[4] - D0FrT + jmp_buf[5] - D1RtP + jmp_buf[6] - D0.5 + jmp_buf[7] - D1.5 + jmp_buf[8] - D0.6 + jmp_buf[9] - D1.6 + jmp_buf[10] - D0.7 + jmp_buf[11] - D1.7 + */ + +#define _JBLEN 24 +#if defined (__USE_MISC) || defined (_ASM) +#define JB_SP 0 +#endif + +#ifndef _ASM +typedef int __jmp_buf[_JBLEN] __attribute__((aligned (8))); +#endif + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) > (void *) (jmpbuf)[JB_SP]) + +#endif /* bits/setjmp.h */ |