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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/unix/sysv/linux/ia64/makecontext.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar.gz |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/makecontext.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/makecontext.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/makecontext.c b/sysdeps/unix/sysv/linux/ia64/makecontext.c deleted file mode 100644 index 299f9a85ae..0000000000 --- a/sysdeps/unix/sysv/linux/ia64/makecontext.c +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 2001-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. - - 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 <libintl.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <ucontext.h> -#include <sys/rse.h> -#include <link.h> -#include <dl-fptr.h> - - -#define PUSH(val) \ -do { \ - if (ia64_rse_is_rnat_slot (rbs)) \ - *rbs++ = 0; \ - *rbs++ = (val); \ -} while (0) - - -/* This implementation can handle an ARGC value of at most 8 and - values can be passed only in integer registers (r32-r39). */ - -void -__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...) -{ - struct sigcontext *sc = &ucp->uc_mcontext; - extern void __start_context (ucontext_t *link, long gp, ...); - unsigned long stack_start, stack_end; - va_list ap; - unsigned long *rbs; - int i; - - stack_start = (long) sc->sc_stack.ss_sp; - stack_end = (long) sc->sc_stack.ss_sp + sc->sc_stack.ss_size; - - stack_start = (stack_start + 7) & -8; - stack_end = stack_end & -16; - - if (argc > 8) - { - fprintf (stderr, _("\ -makecontext: does not know how to handle more than 8 arguments\n")); - exit (-1); - } - - /* set the entry point and global pointer: */ - sc->sc_br[0] = ELF_PTR_TO_FDESC (&__start_context)->ip; - sc->sc_br[1] = ELF_PTR_TO_FDESC (func)->ip; - sc->sc_gr[1] = ELF_PTR_TO_FDESC (func)->gp; - - /* set up the call frame: */ - sc->sc_ar_pfs = ((sc->sc_ar_pfs & ~0x3fffffffffUL) - | (argc + 2) | ((argc + 2) << 7)); - rbs = (unsigned long *) stack_start; - PUSH((long) ucp->uc_link); - PUSH(ELF_PTR_TO_FDESC (&__start_context)->gp); - va_start (ap, argc); - for (i = 0; i < argc; ++i) - PUSH(va_arg (ap, long)); - va_end (ap); - - /* set the memory and register stack pointers: */ - sc->sc_ar_bsp = (long) rbs; - sc->sc_gr[12] = stack_end - 16; - - /* clear the NaT bits for r1 and r12: */ - sc->sc_nat &= ~((1 << 1) | (1 << 12)); - sc->sc_ar_rnat = 0; -} - -weak_alias (__makecontext, makecontext) |