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m68k: update jmpbuf-unwind.h

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Maxim Kuvyrkov 2010-03-09 02:20:36 -08:00 committed by Andreas Schwab
parent f3ed03373a
commit 42ae1878f3
2 changed files with 27 additions and 1 deletions
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5
ChangeLog.m68k
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@ -1,3 +1,8 @@
2010-03-09 Maxim Kuvyrkov <maxim@codesourcery.com>
* sysdeps/m68k/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ)
(_jmpbuf_sp, _JMPBUF_UNWINDS_ADJ, __libc_unwind_longjmp): Define.
2010-02-10 Joseph Myers <joseph@codesourcery.com>
* sysdeps/m68k/fpu/fegetenv.c: Add hidden alias.

23
sysdeps/m68k/jmpbuf-unwind.h
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/* Examine __jmp_buf for unwinding frames. m68k version.
Copyright (C) 2006 Free Software Foundation, Inc.
Copyright (C) 2006, 2010 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -18,8 +18,29 @@
02111-1307 USA. */
#include <setjmp.h>
#include <stdint.h>
#include <unwind.h>
/* Test if longjmp to JMPBUF would unwind the frame
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
((void *) (address) < (void *) demangle ((jmpbuf)->__sp))
#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
_JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
static inline uintptr_t __attribute__ ((unused))
_jmpbuf_sp (__jmp_buf regs)
{
uintptr_t sp = regs[0].__sp;
#ifdef PTR_DEMANGLE
PTR_DEMANGLE (sp);
#endif
return sp;
}
#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
/* We use the normal longjmp for unwinding. */
#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)