diff options
author | Markos Chandras <markos.chandras@imgtec.com> | 2008-02-05 14:51:48 +0000 |
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committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-03-14 22:45:15 +0100 |
commit | 22686a1383c4a4a319eaaa6b16b1a9540114bd66 (patch) | |
tree | 04e12086f9187c150ba6a33db0368b9903e50363 /libc/sysdeps/linux/metag/bits/setjmp.h | |
parent | 37439e66a31f251eba39604885f57099a43d943d (diff) |
Add support for the Meta architecture
Meta cores are 32-bit, hardware multithreaded, general purpose, embedded
processors which also feature a DSP instruction set, and can be found in
many digital radios. They are capable of running different operating
systems on different hardware threads, for example a digital radio might
run RTOSes for DAB decoding and audio decoding on 3 hardware threads,
and run Linux on the 4th hardware thread to manage the user interface,
networking etc. HTPs are also capable of running SMP Linux on multiple
hardware threads.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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 */ |