diff --git a/src/ia64/Ginit_local.c b/src/ia64/Ginit_local.c new file mode 100644 index 00000000..7331af50 --- /dev/null +++ b/src/ia64/Ginit_local.c @@ -0,0 +1,85 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2001-2003 Hewlett-Packard Co + Contributed by David Mosberger-Tang + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include +#include + +#include "init.h" +#include "unwind_i.h" + +#ifdef UNW_REMOTE_ONLY + +PROTECTED int +unw_init_local (unw_cursor_t *cursor, unw_context_t *uc) +{ + return -UNW_EINVAL; +} + +#else /* !UNW_REMOTE_ONLY */ + +PROTECTED int +unw_init_local (unw_cursor_t *cursor, unw_context_t *uc) +{ + struct cursor *c = (struct cursor *) cursor; + unw_word_t sol; + + if (tdep_needs_initialization) + tdep_init (); + + Debug (2, "(cursor=%p)\n", c); + +#ifdef __hpux + { + int ret; + + c->as = unw_local_addr_space; + c->as_arg = uc; + if ((ret = common_init (c)) < 0) + return ret; + + /* On HP-UX, the context created by getcontext() points to the + getcontext() system call stub. Step over it: */ + return unw_step (cursor); + } +#else + /* The bsp value stored by getcontext() points to the *end* of the + register frame of the initial function. We correct for this by + storing the adjusted value in sc_rbs_base, which isn't used by + getcontext()/setcontext(). We can be certain that the entire + frame is stored in a contiguous rbs-area because the frame didn't + become part of the dirty partition until getcontext() was called + and we know that getcontext() doesn't switch the register-backing + store. */ + sol = (uc->uc_mcontext.sc_ar_pfs >> 7) & 0x7f; + uc->uc_mcontext.sc_rbs_base = ia64_rse_skip_regs (uc->uc_mcontext.sc_ar_bsp, + -sol); +#endif + + c->as = unw_local_addr_space; + c->as_arg = uc; + return common_init (c); +} + +#endif /* !UNW_REMOTE_ONLY */