/* Examine __jmp_buf for unwinding frames. RISC-V version. Copyright (C) 2003-2018 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 modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library. If not, see <http://www.gnu.org/licenses/>. */ #include <setjmp.h> #include <stdint.h> #include <unwind.h> #include <sysdep.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)[0].__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)