diff options
Diffstat (limited to 'libc/sysdeps/linux/x86_64/jmpbuf-unwind.h')
| -rw-r--r-- | libc/sysdeps/linux/x86_64/jmpbuf-unwind.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/x86_64/jmpbuf-unwind.h b/libc/sysdeps/linux/x86_64/jmpbuf-unwind.h new file mode 100644 index 000000000..152587222 --- /dev/null +++ b/libc/sysdeps/linux/x86_64/jmpbuf-unwind.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ +#include <setjmp.h> +#include <jmpbuf-offsets.h> + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#if __WORDSIZE == 64 +# define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_RSP]) +#else +# define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_SP]) +#endif + +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ +#include <stdint.h> +#include <unwind.h> + +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) + +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_RSP] - (_adj)) +#endif |